/* roulang page: index */
:root {
            --bg-deep: #0A0E27;
            --bg-mid: #0B1026;
            --bg-panel: #0D1333;
            --blue-primary: #2E6BFF;
            --cyan-bright: #00D4FF;
            --purple-energy: #7C3AED;
            --text-primary: #F2F5FF;
            --text-secondary: #C9D1EA;
            --text-muted: #8A94B8;
            --text-faint: #5C6690;
            --glass-bg: rgba(255,255,255,0.07);
            --glass-bg-strong: rgba(255,255,255,0.10);
            --glass-border: rgba(255,255,255,0.14);
            --glass-border-strong: rgba(255,255,255,0.22);
            --card-radius: 18px;
            --btn-radius: 10px;
            --chip-radius: 999px;
            --input-radius: 10px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-card-hover: 0 16px 48px rgba(0,0,0,0.5), 0 0 24px rgba(0,212,255,0.12);
            --shadow-glow-blue: 0 0 18px rgba(46,107,255,0.4);
            --shadow-glow-cyan: 0 0 18px rgba(0,212,255,0.45);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --section-pad: 72px 0;
            --container-width: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            font-size: 16px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }

        a {
            color: var(--cyan-bright);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #8AE6FF;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .section {
            padding: var(--section-pad);
            position: relative;
        }

        .section-alt {
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .section-tight {
            padding: 48px 0;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--cyan-bright);
            margin-bottom: 12px;
            background: rgba(0,212,255,0.08);
            padding: 6px 16px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(0,212,255,0.2);
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 1px;
            line-height: 1.3;
        }

        .section-header .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0;
            line-height: 1.8;
        }

        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .glass-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
            pointer-events: none;
        }

        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--btn-radius);
            transition: all var(--transition-smooth);
            letter-spacing: 0.5px;
            line-height: 1.4;
            text-decoration: none;
            white-space: nowrap;
            position: relative;
            outline: none;
        }

        .btn:focus {
            outline: 2px solid var(--cyan-bright);
            outline-offset: 3px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--blue-primary) 0%, var(--cyan-bright) 100%);
            color: #FFFFFF;
            box-shadow: var(--shadow-glow-cyan);
            border: none;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0,212,255,0.6), 0 8px 32px rgba(0,0,0,0.3);
            color: #FFFFFF;
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-ghost {
            background: transparent;
            color: var(--cyan-bright);
            border: 1px solid rgba(0,212,255,0.45);
            box-shadow: none;
        }

        .btn-ghost:hover {
            background: rgba(0,212,255,0.08);
            border-color: rgba(0,212,255,0.75);
            color: #8AE6FF;
            transform: translateY(-2px);
            box-shadow: 0 0 16px rgba(0,212,255,0.2);
        }

        .btn-sm {
            padding: 9px 18px;
            font-size: 13px;
            border-radius: 8px;
        }

        .btn-outline-glow {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--glass-border-strong);
            transition: all var(--transition-smooth);
        }

        .btn-outline-glow:hover {
            background: rgba(0,212,255,0.08);
            border-color: rgba(0,212,255,0.5);
            color: var(--cyan-bright);
            box-shadow: 0 0 14px rgba(0,212,255,0.25);
            transform: translateY(-2px);
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--chip-radius);
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--glass-border);
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            text-decoration: none;
        }

        .chip:hover {
            border-color: rgba(0,212,255,0.45);
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.06);
            box-shadow: 0 0 14px rgba(0,212,255,0.2);
        }

        .chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan-bright);
            flex-shrink: 0;
            animation: pulse-dot 2s ease-in-out infinite;
        }

        .chip .dot.orange {
            background: #FF8C42;
        }

        .chip .dot.purple {
            background: var(--purple-energy);
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--chip-radius);
            background: rgba(0,212,255,0.08);
            color: var(--cyan-bright);
            border: 1px solid rgba(0,212,255,0.2);
            letter-spacing: 0.5px;
        }

        .badge-purple {
            background: rgba(124,58,237,0.1);
            color: #B794F4;
            border-color: rgba(124,58,237,0.3);
        }

        .badge-green {
            background: rgba(34,197,94,0.1);
            color: #4ADE80;
            border-color: rgba(34,197,94,0.3);
        }

        .stat-number {
            font-size: 36px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--cyan-bright), var(--blue-primary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: 0.5px;
            line-height: 1.1;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ============ HEADER / NAV ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10,14,39,0.88);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            padding: 0;
            transition: all var(--transition-smooth);
        }

        .site-header.scrolled {
            background: rgba(10,14,39,0.95);
            box-shadow: 0 4px 24px rgba(0,0,0,0.4);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 20px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--blue-primary), var(--cyan-bright));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #FFF;
            font-weight: 700;
            box-shadow: 0 0 16px rgba(0,212,255,0.35);
            letter-spacing: -1px;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .logo-text .sub {
            font-size: 11px;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 3px;
            display: block;
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            padding: 10px 16px;
            border-radius: 8px;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.06);
        }

        .nav-link.active {
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.08);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--cyan-bright);
            border-radius: 1px;
            box-shadow: 0 0 8px rgba(0,212,255,0.6);
        }

        .nav-chips {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 28px;
            padding: 4px;
            background: transparent;
            border: none;
            cursor: pointer;
        }

        .hamburger span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--text-primary);
            border-radius: 1px;
            transition: all var(--transition-fast);
        }

        .mobile-menu {
            display: none;
            background: rgba(10,14,39,0.98);
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 16px 24px;
            flex-direction: column;
            gap: 6px;
        }

        .mobile-menu .nav-link {
            padding: 12px 16px;
            font-size: 15px;
            display: block;
            border-radius: 8px;
        }

        .mobile-menu .nav-chips-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            padding: 12px 0;
        }

        /* ============ HERO ============ */
        .hero {
            position: relative;
            min-height: 720px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--bg-deep);
            padding: 80px 0 60px;
        }

        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
            opacity: 0.55;
        }

        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(10,14,39,0.75) 0%, rgba(10,14,39,0.85) 55%, rgba(10,14,39,0.95) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            width: 100%;
        }

        .hero h1 {
            font-size: 42px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 20px;
            letter-spacing: 1px;
            line-height: 1.25;
        }

        .hero .hero-sub {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 0 32px;
            line-height: 1.9;
        }

        .hero-cta-group {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }

        .version-timeline {
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 16px;
            padding: 20px 24px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .version-timeline .vt-title {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-muted);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .version-timeline .vt-title i {
            color: var(--cyan-bright);
        }

        .vt-track {
            display: flex;
            align-items: center;
            gap: 0;
            overflow-x: auto;
            padding-bottom: 6px;
        }

        .vt-node {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 120px;
            flex-shrink: 0;
            position: relative;
        }

        .vt-node .vt-dot {
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--bg-panel);
            border: 2px solid var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0,212,255,0.5);
            margin-bottom: 8px;
            position: relative;
            z-index: 1;
        }

        .vt-node.completed .vt-dot {
            background: var(--cyan-bright);
            box-shadow: 0 0 16px rgba(0,212,255,0.7);
        }

        .vt-node .vt-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-secondary);
            text-align: center;
            letter-spacing: 0.3px;
        }

        .vt-node .vt-date {
            font-size: 11px;
            color: var(--text-faint);
            text-align: center;
        }

        .vt-line {
            flex: 1;
            min-width: 40px;
            height: 2px;
            background: rgba(255,255,255,0.15);
            position: relative;
            top: -18px;
            border-radius: 1px;
        }

        .vt-line.filled {
            background: linear-gradient(90deg, var(--cyan-bright), var(--blue-primary));
            box-shadow: 0 0 8px rgba(0,212,255,0.4);
        }

        .subscribe-inline {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }

        .subscribe-inline input {
            background: rgba(255,255,255,0.06);
            border: 1px solid var(--glass-border);
            border-radius: var(--input-radius);
            padding: 12px 18px;
            font-size: 14px;
            color: var(--text-primary);
            width: 260px;
            transition: all var(--transition-fast);
            outline: none;
        }

        .subscribe-inline input::placeholder {
            color: var(--text-faint);
        }

        .subscribe-inline input:focus {
            border-color: var(--cyan-bright);
            box-shadow: 0 0 16px rgba(0,212,255,0.25);
            background: rgba(255,255,255,0.08);
        }

        /* ============ NOTICE CHIP BAR ============ */
        .notice-chip-bar {
            padding: 20px 0 0;
            position: relative;
            z-index: 3;
            margin-top: -10px;
        }

        .notice-chip-track {
            display: flex;
            gap: 12px;
            overflow-x: auto;
            padding: 4px 2px 10px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .notice-chip-track::-webkit-scrollbar {
            height: 4px;
        }

        .notice-chip-track::-webkit-scrollbar-thumb {
            background: rgba(255,255,255,0.2);
            border-radius: 2px;
        }

        /* ============ VALUE SECTION ============ */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .value-card {
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .value-card .value-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            background: rgba(0,212,255,0.08);
            border: 1px solid rgba(0,212,255,0.2);
            color: var(--cyan-bright);
            margin-bottom: 6px;
        }

        .value-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
            letter-spacing: 0.5px;
        }

        .value-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* ============ FUNCTION GRID ============ */
        .function-layout {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 32px;
            align-items: start;
        }

        .function-left h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }

        .function-left p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
        }

        .function-grid-4 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .function-tile {
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            min-height: 150px;
        }

        .function-tile .ft-icon {
            font-size: 22px;
            color: var(--cyan-bright);
            margin-bottom: 4px;
        }

        .function-tile h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
        }

        .function-tile p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        .function-tile img.ft-cover {
            width: 100%;
            height: 100px;
            object-fit: cover;
            border-radius: 10px;
            margin-bottom: 8px;
        }

        /* ============ SCENARIO SECTION ============ */
        .scenario-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .scenario-row.reversed {
            grid-template-columns: 1fr 1fr;
        }

        .scenario-image {
            border-radius: var(--card-radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--glass-border);
        }

        .scenario-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
            border-radius: var(--card-radius);
            transition: transform var(--transition-smooth);
        }

        .scenario-image:hover img {
            transform: scale(1.03);
        }

        .scenario-text h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 10px;
            letter-spacing: 0.5px;
        }

        .scenario-text p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
        }

        .scenario-text .scenario-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.08);
            border: 1px solid rgba(0,212,255,0.2);
            padding: 4px 14px;
            border-radius: var(--chip-radius);
            margin-bottom: 12px;
        }

        /* ============ SCREENSHOT SECTION ============ */
        .screenshot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .screenshot-card {
            padding: 0;
            overflow: hidden;
        }

        .screenshot-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--card-radius) var(--card-radius) 0 0;
        }

        .screenshot-card .ss-body {
            padding: 18px 20px;
        }

        .screenshot-card .ss-body h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 6px;
        }

        .screenshot-card .ss-body p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }

        /* ============ CASE SECTION ============ */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .case-card {
            padding: 26px 22px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            border-top: 3px solid transparent;
        }

        .case-card:hover {
            border-top-color: var(--cyan-bright);
        }

        .case-card .case-metric {
            font-size: 30px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--cyan-bright), var(--blue-primary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .case-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
        }

        .case-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        .case-card .case-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--cyan-bright);
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ============ PRICING SECTION ============ */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }

        .pricing-card {
            padding: 30px 26px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            position: relative;
        }

        .pricing-card.featured {
            border-color: rgba(0,212,255,0.4);
            box-shadow: 0 0 32px rgba(0,212,255,0.15), var(--shadow-card);
            transform: translateY(-8px);
        }

        .pricing-card.featured::after {
            content: '热门推荐';
            position: absolute;
            top: 16px;
            right: 18px;
            font-size: 11px;
            font-weight: 600;
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.1);
            border: 1px solid rgba(0,212,255,0.3);
            padding: 3px 10px;
            border-radius: var(--chip-radius);
            letter-spacing: 1px;
        }

        .pricing-card .price-name {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .pricing-card .price-amount {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: baseline;
            gap: 4px;
        }

        .pricing-card .price-amount .unit {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-muted);
        }

        .pricing-card .price-features {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .pricing-card .price-features li {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            line-height: 1.5;
        }

        .pricing-card .price-features li i {
            color: var(--cyan-bright);
            font-size: 12px;
            flex-shrink: 0;
        }

        .pricing-card .btn {
            margin-top: 8px;
            width: 100%;
        }

        /* ============ REVIEW WALL ============ */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            padding: 24px 22px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .review-card .review-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
            flex: 1;
        }

        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 8px;
        }

        .review-card .review-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(0,212,255,0.12);
            border: 1px solid rgba(0,212,255,0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--cyan-bright);
            flex-shrink: 0;
        }

        .review-card .review-name {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .review-card .review-role {
            font-size: 11px;
            color: var(--text-faint);
        }

        /* ============ SOCIAL PROOF ============ */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stats-card {
            padding: 24px 20px;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
        }

        /* ============ NEWS SECTION ============ */
        .news-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            padding: 0;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .news-card img.news-cover {
            width: 100%;
            height: 170px;
            object-fit: cover;
            border-radius: var(--card-radius) var(--card-radius) 0 0;
        }

        .news-card .news-body {
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }

        .news-card .news-date {
            font-size: 12px;
            color: var(--text-faint);
            letter-spacing: 0.5px;
        }

        .news-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
            line-height: 1.45;
        }

        .news-card .news-summary {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        .news-card .btn-read {
            align-self: flex-start;
            font-size: 13px;
            font-weight: 500;
            color: var(--cyan-bright);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 4px;
            transition: all var(--transition-fast);
        }

        .news-card .btn-read:hover {
            gap: 10px;
            color: #8AE6FF;
        }

        /* ============ BRAND INTRO ============ */
        .brand-intro {
            max-width: 800px;
            margin: 0 auto;
            text-align: left;
            padding: 32px 36px;
        }

        .brand-intro p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 2;
            margin: 0 0 16px;
        }

        .brand-intro p:last-child {
            margin-bottom: 0;
        }

        .brand-intro .brand-quote {
            font-size: 17px;
            color: var(--cyan-bright);
            font-weight: 500;
            border-left: 3px solid var(--cyan-bright);
            padding-left: 16px;
            margin: 8px 0 18px;
            line-height: 1.8;
        }

        /* ============ HOT RANKING ============ */
        .hot-rank-track {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding: 8px 2px 14px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
        }

        .hot-rank-track::-webkit-scrollbar {
            height: 4px;
        }

        .hot-rank-track::-webkit-scrollbar-thumb {
            background: rgba(255,255,255,0.2);
            border-radius: 2px;
        }

        .rank-card {
            min-width: 260px;
            flex-shrink: 0;
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            scroll-snap-align: start;
        }

        .rank-card .rank-num {
            font-size: 32px;
            font-weight: 700;
            color: rgba(255,255,255,0.15);
            line-height: 1;
            flex-shrink: 0;
            min-width: 40px;
            text-align: center;
        }

        .rank-card .rank-info h3 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 4px;
        }

        .rank-card .rank-info p {
            font-size: 12px;
            color: var(--text-muted);
            margin: 0;
        }

        /* ============ EQUIPMENT LIST ============ */
        .equip-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .equip-item {
            display: flex;
            gap: 16px;
            padding: 18px 20px;
            align-items: center;
        }

        .equip-item img.equip-thumb {
            width: 72px;
            height: 72px;
            object-fit: cover;
            border-radius: 10px;
            flex-shrink: 0;
        }

        .equip-item .equip-info h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 4px;
        }

        .equip-item .equip-info p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        .equip-item .equip-tag {
            font-size: 11px;
            font-weight: 500;
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.08);
            padding: 3px 10px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(0,212,255,0.2);
            flex-shrink: 0;
        }

        /* ============ GAME DATA ============ */
        .data-bar-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .data-bar-item {
            padding: 20px 22px;
        }

        .data-bar-item .db-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }

        .data-bar-item .db-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .data-bar-item .db-val {
            font-size: 14px;
            font-weight: 600;
            color: var(--cyan-bright);
        }

        .data-bar-item .db-track {
            height: 6px;
            background: rgba(255,255,255,0.08);
            border-radius: 3px;
            overflow: hidden;
        }

        .data-bar-item .db-fill {
            height: 100%;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--blue-primary), var(--cyan-bright));
            transition: width var(--transition-smooth);
            box-shadow: 0 0 8px rgba(0,212,255,0.4);
        }

        .data-bar-item .db-fill.purple {
            background: linear-gradient(90deg, var(--purple-energy), var(--cyan-bright));
            box-shadow: 0 0 8px rgba(124,58,237,0.4);
        }

        /* ============ GUIDE SECTION ============ */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .guide-card {
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            min-height: 150px;
        }

        .guide-card .guide-icon {
            font-size: 24px;
            color: var(--purple-energy);
            margin-bottom: 4px;
        }

        .guide-card h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
        }

        .guide-card p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
            flex: 1;
        }

        .guide-card .guide-link {
            font-size: 13px;
            font-weight: 500;
            color: var(--cyan-bright);
        }

        /* ============ CTA SECTION ============ */
        .cta-banner {
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            background: linear-gradient(135deg, rgba(46,107,255,0.15), rgba(0,212,255,0.08));
            border: 1px solid rgba(0,212,255,0.25);
        }

        .cta-banner .cta-text h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 6px;
            letter-spacing: 0.5px;
        }

        .cta-banner .cta-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        .cta-banner .cta-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 48px 0 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 14px;
            letter-spacing: 1px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--cyan-bright);
        }

        .footer-col .footer-contact {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .footer-col .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 12px;
        }

        .footer-col .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--glass-border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 14px;
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .footer-col .footer-social a:hover {
            background: rgba(0,212,255,0.1);
            border-color: rgba(0,212,255,0.3);
            color: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0,212,255,0.2);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--text-faint);
        }

        .footer-bottom a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-bottom a:hover {
            color: var(--cyan-bright);
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            align-items: center;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }

            .section {
                padding: 56px 0;
            }

            .hero h1 {
                font-size: 34px;
            }

            .hero .hero-sub {
                font-size: 15px;
            }

            .value-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .function-layout {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .scenario-row {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .scenario-image img {
                height: 220px;
            }

            .screenshot-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .case-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .pricing-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .pricing-card.featured {
                transform: none;
            }

            .review-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .news-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .data-bar-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .equip-list {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .nav-links {
                gap: 0;
            }

            .nav-link {
                padding: 10px 10px;
                font-size: 13px;
            }

            .nav-chips {
                gap: 6px;
            }

            .chip {
                padding: 6px 12px;
                font-size: 12px;
            }
        }

        @media (max-width: 768px) {
            .nav-wrapper {
                height: 58px;
            }

            .nav-links {
                display: none;
            }

            .nav-chips {
                display: none;
            }

            .header-actions .btn-sm {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-menu.open {
                display: flex;
            }

            .hero {
                min-height: 580px;
                padding: 40px 0 40px;
            }

            .hero h1 {
                font-size: 28px;
                line-height: 1.35;
            }

            .hero .hero-sub {
                font-size: 14px;
                line-height: 1.8;
                margin-bottom: 24px;
            }

            .hero-cta-group {
                gap: 10px;
                margin-bottom: 28px;
            }

            .btn {
                padding: 11px 22px;
                font-size: 14px;
            }

            .version-timeline {
                padding: 14px 16px;
            }

            .section {
                padding: 40px 0;
            }

            .section-header {
                margin-bottom: 28px;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .value-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .function-grid-4 {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .screenshot-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .screenshot-card img {
                height: 160px;
            }

            .case-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .review-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .news-list {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .news-card img.news-cover {
                height: 150px;
            }

            .guide-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .equip-list {
                grid-template-columns: 1fr;
            }

            .cta-banner {
                flex-direction: column;
                text-align: center;
                padding: 28px 22px;
            }

            .cta-banner .cta-actions {
                width: 100%;
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .footer-bottom .footer-links {
                gap: 10px;
                flex-wrap: wrap;
                justify-content: center;
            }

            .stat-number {
                font-size: 28px;
            }

            .brand-intro {
                padding: 24px 20px;
            }

            .brand-intro p {
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

            .hero h1 {
                font-size: 24px;
            }

            .hero .hero-sub {
                font-size: 13px;
            }

            .btn {
                padding: 10px 18px;
                font-size: 13px;
            }

            .btn-sm {
                padding: 7px 14px;
                font-size: 12px;
            }

            .section-header h2 {
                font-size: 20px;
            }

            .stats-row {
                grid-template-columns: 1fr;
            }

            .stat-number {
                font-size: 26px;
            }

            .cta-banner .cta-text h2 {
                font-size: 18px;
            }

            .subscribe-inline input {
                width: 100%;
            }

            .subscribe-inline {
                flex-direction: column;
                width: 100%;
            }

            .subscribe-inline .btn {
                width: 100%;
            }
        }

/* roulang page: category3 */
:root {
            --bg-deep: #0A0E27;
            --bg-mid: #0B1026;
            --bg-panel: #0D1333;
            --blue-primary: #2E6BFF;
            --cyan-bright: #00D4FF;
            --purple-energy: #7C3AED;
            --text-primary: #F2F5FF;
            --text-secondary: #C9D1EA;
            --text-muted: #8A94B8;
            --text-faint: #5C6690;
            --glass-bg: rgba(255,255,255,0.07);
            --glass-bg-strong: rgba(255,255,255,0.10);
            --glass-border: rgba(255,255,255,0.14);
            --glass-border-strong: rgba(255,255,255,0.22);
            --card-radius: 18px;
            --btn-radius: 10px;
            --chip-radius: 999px;
            --input-radius: 10px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-card-hover: 0 16px 48px rgba(0,0,0,0.5), 0 0 24px rgba(0,212,255,0.12);
            --shadow-glow-blue: 0 0 18px rgba(46,107,255,0.4);
            --shadow-glow-cyan: 0 0 18px rgba(0,212,255,0.45);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --section-pad: 72px 0;
            --container-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            font-size: 16px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: var(--cyan-bright);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #8AE6FF;
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        .section {
            padding: var(--section-pad);
            position: relative;
        }
        .section-alt {
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .section-tight {
            padding: 48px 0;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--cyan-bright);
            margin-bottom: 12px;
            background: rgba(0,212,255,0.08);
            padding: 6px 16px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(0,212,255,0.2);
        }
        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 1px;
            line-height: 1.3;
        }
        .section-header .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0;
            line-height: 1.8;
        }
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .glass-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
            pointer-events: none;
        }
        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--btn-radius);
            transition: all var(--transition-smooth);
            letter-spacing: 0.5px;
            line-height: 1.4;
            text-decoration: none;
            white-space: nowrap;
            position: relative;
            outline: none;
        }
        .btn:focus {
            outline: 2px solid var(--cyan-bright);
            outline-offset: 3px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--blue-primary) 0%, var(--cyan-bright) 100%);
            color: #FFFFFF;
            box-shadow: var(--shadow-glow-cyan);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0,212,255,0.6), 0 8px 32px rgba(0,0,0,0.3);
            color: #FFFFFF;
        }
        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(0,212,255,0.5);
            color: var(--cyan-bright);
        }
        .btn-ghost:hover {
            background: rgba(0,212,255,0.08);
            border-color: rgba(0,212,255,0.8);
            transform: translateY(-2px);
            color: #8AE6FF;
        }
        .btn-read-more {
            font-size: 14px;
            font-weight: 600;
            padding: 9px 20px;
            border-radius: var(--btn-radius);
            border: 1px solid rgba(0,212,255,0.4);
            color: var(--cyan-bright);
            background: transparent;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-smooth);
        }
        .btn-read-more:hover {
            background: rgba(0,212,255,0.1);
            border-color: rgba(0,212,255,0.8);
            box-shadow: 0 0 16px rgba(0,212,255,0.3);
            color: #FFFFFF;
        }
        .btn-read-more i {
            font-size: 13px;
            transition: transform var(--transition-smooth);
        }
        .btn-read-more:hover i {
            transform: translateX(4px);
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--chip-radius);
            font-size: 13px;
            font-weight: 500;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.18);
            color: var(--text-secondary);
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .chip:hover {
            border-color: rgba(0,212,255,0.6);
            background: rgba(0,212,255,0.1);
            color: #FFFFFF;
            box-shadow: 0 0 16px rgba(0,212,255,0.25);
        }
        .chip.active {
            background: rgba(0,212,255,0.15);
            border-color: rgba(0,212,255,0.7);
            color: #FFFFFF;
            box-shadow: 0 0 20px rgba(0,212,255,0.2);
        }
        .chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan-bright);
            flex-shrink: 0;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10,14,39,0.82);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            padding: 16px 0;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .logo:hover {
            color: #FFFFFF;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--blue-primary), var(--cyan-bright));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #FFFFFF;
            box-shadow: 0 0 16px rgba(0,212,255,0.4);
            flex-shrink: 0;
        }
        .logo-text {
            display: inline-flex;
            flex-direction: column;
            line-height: 1.2;
        }
        .logo-text small {
            font-size: 11px;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 2px;
            text-transform: uppercase;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 10px 18px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            position: relative;
        }
        .nav-link:hover {
            color: #FFFFFF;
            background: rgba(255,255,255,0.06);
        }
        .nav-link.active {
            color: #FFFFFF;
            background: rgba(0,212,255,0.12);
            border: 1px solid rgba(0,212,255,0.25);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 18px;
            right: 18px;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-primary), var(--cyan-bright));
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0,212,255,0.5);
        }
        .nav-notice-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--chip-radius);
            background: rgba(124,58,237,0.12);
            border: 1px solid rgba(124,58,237,0.5);
            color: #C4B5FD;
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .nav-notice-chip:hover {
            background: rgba(124,58,237,0.22);
            border-color: rgba(124,58,237,0.8);
            color: #FFFFFF;
            box-shadow: 0 0 16px rgba(124,58,237,0.3);
        }
        .nav-notice-chip .dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #A78BFA;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.7); }
        }

        /* Breadcrumb */
        .breadcrumb-wrapper {
            padding: 22px 0 0;
        }
        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--chip-radius);
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.12);
            font-size: 13px;
            color: var(--text-muted);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--cyan-bright);
        }
        .breadcrumb .separator {
            color: var(--text-faint);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: #FFFFFF;
            font-weight: 500;
        }

        /* Category Header */
        .category-header {
            padding: 28px 0 8px;
        }
        .category-header-content {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .category-header-text {
            flex: 1;
            min-width: 280px;
        }
        .category-header h1 {
            font-size: 34px;
            font-weight: 700;
            margin: 0 0 12px;
            color: #FFFFFF;
            letter-spacing: 1px;
            line-height: 1.3;
        }
        .category-header h1 .highlight {
            background: linear-gradient(135deg, var(--blue-primary), var(--cyan-bright));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .category-header .cat-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
            margin: 0;
        }
        .category-header-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--chip-radius);
            background: rgba(0,212,255,0.08);
            border: 1px solid rgba(0,212,255,0.25);
            font-size: 14px;
            color: var(--cyan-bright);
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* Filter Toolbar */
        .filter-toolbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 16px 20px;
            border-radius: 14px;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.1);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            margin-top: 20px;
        }
        .filter-chips {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .filter-select {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.18);
            border-radius: var(--input-radius);
            padding: 10px 16px;
            font-size: 14px;
            color: var(--text-primary);
            outline: none;
            cursor: pointer;
            transition: all var(--transition-smooth);
            min-width: 140px;
        }
        .filter-select:focus {
            border-color: rgba(0,212,255,0.6);
            box-shadow: 0 0 16px rgba(0,212,255,0.2);
        }
        .filter-select option {
            background: var(--bg-panel);
            color: var(--text-primary);
        }

        /* Article List */
        .article-list-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }
        .article-card {
            display: flex;
            flex-direction: column;
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            overflow: hidden;
            position: relative;
        }
        .article-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.22) 0%, rgba(255,255,255,0.05) 50%, rgba(255,255,255,0.22) 100%);
            pointer-events: none;
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.3);
        }
        .article-card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: var(--card-radius) var(--card-radius) 0 0;
            background: #1A1F3D;
        }
        .article-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
        }
        .article-card:hover .article-card-image img {
            transform: scale(1.05);
        }
        .article-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: var(--chip-radius);
            font-size: 12px;
            font-weight: 600;
            background: rgba(10,14,39,0.8);
            border: 1px solid rgba(0,212,255,0.4);
            color: var(--cyan-bright);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .article-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .article-card-meta .date {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }
        .article-card-meta .game-tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 999px;
            background: rgba(46,107,255,0.12);
            border: 1px solid rgba(46,107,255,0.3);
            font-size: 12px;
            color: #8AA8FF;
        }
        .article-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 10px;
            color: #FFFFFF;
            line-height: 1.4;
            letter-spacing: 0.3px;
        }
        .article-card .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
            min-height: 48px;
        }
        .article-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: auto;
        }
        .article-card .read-time {
            font-size: 12px;
            color: var(--text-faint);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Stats Snapshot */
        .stats-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .stat-chip-card {
            padding: 24px 22px;
            text-align: left;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .stat-chip-card .stat-value {
            font-size: 28px;
            font-weight: 700;
            color: #FFFFFF;
            letter-spacing: 0.5px;
            display: flex;
            align-items: baseline;
            gap: 6px;
        }
        .stat-chip-card .stat-value .stat-unit {
            font-size: 14px;
            font-weight: 400;
            color: var(--cyan-bright);
        }
        .stat-chip-card .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .stat-chip-card .stat-trend {
            font-size: 13px;
            color: #34D399;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        /* Topic Cards */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .topic-card {
            display: flex;
            gap: 16px;
            padding: 20px;
            align-items: flex-start;
        }
        .topic-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(46,107,255,0.2), rgba(0,212,255,0.15));
            border: 1px solid rgba(0,212,255,0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--cyan-bright);
            flex-shrink: 0;
        }
        .topic-card-content h4 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 6px;
            color: #FFFFFF;
            line-height: 1.4;
        }
        .topic-card-content p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 10px;
            line-height: 1.7;
        }
        .topic-card-content a {
            font-size: 14px;
            font-weight: 500;
            color: var(--cyan-bright);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: all var(--transition-fast);
        }
        .topic-card-content a:hover {
            color: #8AE6FF;
            gap: 8px;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            border-radius: 14px;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.1);
            padding: 18px 22px;
            transition: all var(--transition-smooth);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: rgba(0,212,255,0.4);
            background: rgba(0,212,255,0.05);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-size: 16px;
            font-weight: 600;
            color: #FFFFFF;
            letter-spacing: 0.3px;
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0,212,255,0.1);
            border: 1px solid rgba(0,212,255,0.3);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--cyan-bright);
            flex-shrink: 0;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover .faq-icon {
            background: rgba(0,212,255,0.2);
            box-shadow: 0 0 12px rgba(0,212,255,0.3);
        }
        .faq-answer {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-top: 10px;
            display: none;
            padding-top: 10px;
            border-top: 1px dashed rgba(255,255,255,0.1);
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-icon i::before {
            content: '\f068';
        }

        /* CTA Strip */
        .cta-strip {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            padding: 32px 36px;
            border-radius: 18px;
            background: linear-gradient(135deg, rgba(46,107,255,0.12), rgba(0,212,255,0.08));
            border: 1px solid rgba(0,212,255,0.25);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: var(--shadow-card);
        }
        .cta-strip-content {
            flex: 1;
            min-width: 260px;
        }
        .cta-strip-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin: 0 0 8px;
            color: #FFFFFF;
            letter-spacing: 0.5px;
        }
        .cta-strip-content p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        .cta-strip-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .subscribe-form {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .subscribe-input {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.18);
            border-radius: var(--input-radius);
            padding: 12px 18px;
            font-size: 14px;
            color: var(--text-primary);
            outline: none;
            min-width: 220px;
            transition: all var(--transition-smooth);
        }
        .subscribe-input::placeholder {
            color: var(--text-faint);
        }
        .subscribe-input:focus {
            border-color: rgba(0,212,255,0.6);
            box-shadow: 0 0 16px rgba(0,212,255,0.2);
        }

        /* Footer */
        .site-footer {
            background: #070B1E;
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 56px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: #FFFFFF;
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--cyan-bright);
        }
        .footer-contact {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0 0 12px;
        }
        .footer-social {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.12);
            color: var(--text-secondary);
            font-size: 15px;
            transition: all var(--transition-smooth);
        }
        .footer-social a:hover {
            background: rgba(0,212,255,0.1);
            border-color: rgba(0,212,255,0.4);
            color: var(--cyan-bright);
            box-shadow: 0 0 14px rgba(0,212,255,0.2);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 20px 0;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 13px;
            color: var(--text-faint);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 13px;
        }
        .footer-links a:hover {
            color: var(--cyan-bright);
        }
        .footer-links span {
            color: var(--text-faint);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .stats-snapshot-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
            .article-list-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            }
        }
        @media (max-width: 768px) {
            .site-header .container {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .nav-links {
                gap: 4px;
                flex-wrap: wrap;
            }
            .nav-link {
                padding: 8px 12px;
                font-size: 14px;
            }
            .nav-notice-chip {
                padding: 6px 14px;
                font-size: 12px;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .category-header .cat-desc {
                font-size: 15px;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-chips {
                gap: 8px;
            }
            .article-list-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .stats-snapshot-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .cta-strip {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form {
                flex-direction: column;
                align-items: stretch;
                width: 100%;
            }
            .subscribe-input {
                min-width: auto;
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .section {
                padding: 48px 0;
            }
        }
        @media (max-width: 520px) {
            .nav-link {
                padding: 6px 10px;
                font-size: 13px;
            }
            .nav-link.active::after {
                left: 10px;
                right: 10px;
            }
            .category-header h1 {
                font-size: 22px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .btn {
                padding: 11px 20px;
                font-size: 14px;
            }
            .article-card-body {
                padding: 16px 18px 18px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-deep: #0A0E27;
            --bg-mid: #0B1026;
            --bg-panel: #0D1333;
            --blue-primary: #2E6BFF;
            --cyan-bright: #00D4FF;
            --purple-energy: #7C3AED;
            --text-primary: #F2F5FF;
            --text-secondary: #C9D1EA;
            --text-muted: #8A94B8;
            --text-faint: #5C6690;
            --glass-bg: rgba(255,255,255,0.07);
            --glass-bg-strong: rgba(255,255,255,0.10);
            --glass-border: rgba(255,255,255,0.14);
            --glass-border-strong: rgba(255,255,255,0.22);
            --card-radius: 18px;
            --btn-radius: 10px;
            --chip-radius: 999px;
            --input-radius: 10px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-card-hover: 0 16px 48px rgba(0,0,0,0.5), 0 0 24px rgba(0,212,255,0.12);
            --shadow-glow-blue: 0 0 18px rgba(46,107,255,0.4);
            --shadow-glow-cyan: 0 0 18px rgba(0,212,255,0.45);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --section-pad: 72px 0;
            --container-width: 1200px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: var(--cyan-bright);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #8AE6FF;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        .section {
            padding: var(--section-pad);
            position: relative;
        }
        .section-alt {
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .section-tight {
            padding: 48px 0;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--cyan-bright);
            margin-bottom: 12px;
            background: rgba(0,212,255,0.08);
            padding: 6px 16px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(0,212,255,0.2);
        }
        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 1px;
            line-height: 1.3;
        }
        .section-header .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0;
            line-height: 1.8;
        }
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .glass-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
            pointer-events: none;
        }
        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--btn-radius);
            transition: all var(--transition-smooth);
            letter-spacing: 0.5px;
            line-height: 1.4;
            text-decoration: none;
            white-space: nowrap;
            position: relative;
            outline: none;
        }
        .btn:focus {
            outline: 2px solid var(--cyan-bright);
            outline-offset: 3px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--blue-primary) 0%, var(--cyan-bright) 100%);
            color: #FFFFFF;
            box-shadow: var(--shadow-glow-cyan);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0,212,255,0.6), 0 8px 32px rgba(0,0,0,0.3);
            color: #FFFFFF;
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid var(--glass-border-strong);
            color: var(--text-primary);
        }
        .btn-ghost:hover {
            background: rgba(255,255,255,0.06);
            border-color: rgba(0,212,255,0.5);
            transform: translateY(-2px);
            color: var(--cyan-bright);
        }
        .btn-sm {
            font-size: 13px;
            padding: 9px 18px;
            border-radius: 8px;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: var(--chip-radius);
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--glass-border);
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .chip:hover {
            border-color: rgba(0,212,255,0.5);
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.08);
        }
        .chip.active {
            background: rgba(0,212,255,0.12);
            border-color: rgba(0,212,255,0.5);
            color: var(--cyan-bright);
        }
        .chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 8px rgba(0,212,255,0.6);
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10,14,39,0.85);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--text-primary);
            white-space: nowrap;
        }
        .logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--blue-primary), var(--purple-energy));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            box-shadow: 0 0 16px rgba(46,107,255,0.5);
        }
        .logo:hover {
            color: var(--cyan-bright);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            letter-spacing: 0.3px;
            position: relative;
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.05);
        }
        .nav-link.active {
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 2px;
            background: var(--cyan-bright);
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(0,212,255,0.6);
        }
        .nav-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            padding: 6px 14px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(0,212,255,0.35);
            background: rgba(0,212,255,0.08);
            color: var(--cyan-bright);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }
        .nav-badge:hover {
            background: rgba(0,212,255,0.15);
            border-color: rgba(0,212,255,0.65);
            box-shadow: 0 0 14px rgba(0,212,255,0.25);
        }
        .hamburger {
            display: none;
            font-size: 22px;
            color: var(--text-primary);
            padding: 8px;
            border-radius: 8px;
            transition: all var(--transition-fast);
        }
        .hamburger:hover {
            background: rgba(255,255,255,0.08);
        }

        /* Mobile Nav */
        .mobile-nav {
            display: none;
            background: rgba(10,14,39,0.97);
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 16px 24px 24px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav .nav-link {
            display: block;
            padding: 12px 16px;
            font-size: 16px;
            border-radius: 10px;
        }
        .mobile-nav .nav-badge {
            margin-top: 8px;
            justify-content: center;
        }
        .mobile-nav.open {
            display: flex;
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 24px 0 0;
        }
        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-muted);
            background: rgba(255,255,255,0.04);
            padding: 10px 20px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(255,255,255,0.08);
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--cyan-bright);
        }
        .breadcrumb .separator {
            color: var(--text-faint);
        }
        .breadcrumb .current {
            color: var(--cyan-bright);
            font-weight: 500;
        }

        /* Category Header */
        .category-header {
            padding: 40px 0 32px;
        }
        .category-header-inner {
            display: flex;
            align-items: flex-start;
            gap: 40px;
            flex-wrap: wrap;
        }
        .category-header-text {
            flex: 1;
            min-width: 280px;
        }
        .category-header h1 {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: 1px;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--text-primary);
        }
        .category-header h1 .highlight {
            background: linear-gradient(135deg, var(--cyan-bright), var(--blue-primary));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .category-header .category-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.85;
            max-width: 720px;
            margin: 0;
        }
        .category-header .header-stats {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .header-stat {
            text-align: center;
            min-width: 100px;
        }
        .header-stat .stat-number {
            font-size: 26px;
            font-weight: 700;
            color: var(--cyan-bright);
            text-shadow: 0 0 20px rgba(0,212,255,0.4);
        }
        .header-stat .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Filter Toolbar */
        .filter-toolbar {
            padding: 20px 0 8px;
        }
        .filter-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 14px;
            padding: 14px 20px;
            backdrop-filter: blur(12px);
        }
        .filter-chips {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .sort-select {
            background: rgba(255,255,255,0.06);
            border: 1px solid var(--glass-border);
            border-radius: 8px;
            padding: 8px 16px;
            font-size: 14px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238A94B8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
        }
        .sort-select:hover,
        .sort-select:focus {
            border-color: rgba(0,212,255,0.45);
            outline: none;
        }

        /* Article Cards Grid */
        .article-grid {
            padding: 16px 0 40px;
        }
        .article-cards-row {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }
        .article-card {
            display: flex;
            flex-direction: column;
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            overflow: hidden;
            position: relative;
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }
        .article-card .card-image-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #0D1333;
        }
        .article-card .card-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }
        .article-card:hover .card-image-wrap img {
            transform: scale(1.04);
        }
        .article-card .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: var(--chip-radius);
            background: rgba(10,14,39,0.75);
            border: 1px solid rgba(0,212,255,0.4);
            color: var(--cyan-bright);
            backdrop-filter: blur(6px);
            letter-spacing: 0.5px;
        }
        .article-card .card-body {
            padding: 20px 22px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-card .card-date {
            font-size: 13px;
            color: var(--text-faint);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .article-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.45;
            transition: color var(--transition-fast);
        }
        .article-card:hover .card-title {
            color: var(--cyan-bright);
        }
        .article-card .card-summary {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
            flex: 1;
        }
        .article-card .card-link {
            align-self: flex-start;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-bright);
            padding: 8px 18px;
            border-radius: 8px;
            border: 1px solid rgba(0,212,255,0.3);
            transition: all var(--transition-fast);
        }
        .article-card .card-link:hover {
            background: rgba(0,212,255,0.12);
            border-color: rgba(0,212,255,0.6);
            box-shadow: 0 0 14px rgba(0,212,255,0.2);
            color: var(--cyan-bright);
        }

        /* Data Snapshot */
        .data-snap-section {
            padding: 48px 0;
        }
        .data-snap-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .snap-card {
            text-align: center;
            padding: 28px 20px;
        }
        .snap-card .snap-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(46,107,255,0.2), rgba(0,212,255,0.15));
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--cyan-bright);
            margin-bottom: 14px;
            border: 1px solid rgba(0,212,255,0.25);
        }
        .snap-card .snap-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            text-shadow: 0 0 24px rgba(0,212,255,0.3);
            margin-bottom: 6px;
        }
        .snap-card .snap-label {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* Topics */
        .topics-section {
            padding: 48px 0;
        }
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            display: flex;
            flex-direction: column;
            padding: 0;
            overflow: hidden;
            cursor: pointer;
        }
        .topic-card .topic-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #0D1333;
        }
        .topic-card .topic-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.4s ease;
        }
        .topic-card:hover .topic-image img {
            transform: scale(1.05);
        }
        .topic-card .topic-body {
            padding: 18px 20px 22px;
        }
        .topic-card .topic-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            transition: color var(--transition-fast);
        }
        .topic-card:hover .topic-title {
            color: var(--cyan-bright);
        }
        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.65;
        }

        /* FAQ */
        .faq-section {
            padding: 56px 0;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 12px;
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: rgba(0,212,255,0.3);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: all var(--transition-fast);
            gap: 16px;
            user-select: none;
        }
        .faq-question:hover {
            color: var(--cyan-bright);
        }
        .faq-question .faq-toggle {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(0,212,255,0.08);
            border: 1px solid rgba(0,212,255,0.25);
            color: var(--cyan-bright);
            font-size: 14px;
            transition: all var(--transition-fast);
        }
        .faq-item.open .faq-toggle {
            transform: rotate(45deg);
            background: rgba(0,212,255,0.18);
        }
        .faq-answer {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA Section */
        .cta-section {
            padding: 56px 0 64px;
        }
        .cta-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            padding: 32px 36px;
            border-radius: 20px;
            background: linear-gradient(135deg, rgba(46,107,255,0.12), rgba(0,212,255,0.06));
            border: 1px solid rgba(0,212,255,0.25);
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0,212,255,0.15), transparent 70%);
            pointer-events: none;
        }
        .cta-card .cta-text {
            flex: 1;
            min-width: 240px;
        }
        .cta-card .cta-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .cta-card .cta-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }
        .cta-card .cta-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        /* Resource Links */
        .resource-section {
            padding: 40px 0 56px;
        }
        .resource-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .resource-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 10px 18px;
            border-radius: 10px;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
            transition: all var(--transition-fast);
        }
        .resource-link:hover {
            color: var(--cyan-bright);
            border-color: rgba(0,212,255,0.35);
            background: rgba(0,212,255,0.06);
        }

        /* Footer */
        .site-footer {
            background: #080B1F;
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 56px 0 24px;
            margin-top: 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col p,
        .footer-col li {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--cyan-bright);
        }
        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 16px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            color: var(--text-muted);
            font-size: 16px;
            transition: all var(--transition-fast);
        }
        .footer-social a:hover {
            color: var(--cyan-bright);
            border-color: rgba(0,212,255,0.4);
            background: rgba(0,212,255,0.08);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 13px;
            color: var(--text-faint);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a {
            color: var(--text-faint);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--cyan-bright);
        }
        .footer-links span {
            color: var(--text-faint);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-snap-grid,
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-header h1 {
                font-size: 28px;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-badge-desktop {
                display: none;
            }
            .hamburger {
                display: inline-flex;
            }
            .header-inner {
                height: 60px;
            }
            .article-cards-row {
                grid-template-columns: 1fr;
            }
            .data-snap-grid,
            .topics-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .category-header-inner {
                flex-direction: column;
                gap: 20px;
            }
            .category-header h1 {
                font-size: 24px;
            }
            .cta-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .filter-inner {
                flex-direction: column;
                align-items: stretch;
            }
            .section {
                padding: 48px 0;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .article-card .card-body {
                padding: 16px 18px 20px;
            }
            .btn {
                padding: 11px 20px;
                font-size: 14px;
            }
            .cta-card {
                padding: 24px 20px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #0A0E27;
            --bg-mid: #0B1026;
            --bg-panel: #0D1333;
            --blue-primary: #2E6BFF;
            --cyan-bright: #00D4FF;
            --purple-energy: #7C3AED;
            --text-primary: #F2F5FF;
            --text-secondary: #C9D1EA;
            --text-muted: #8A94B8;
            --text-faint: #5C6690;
            --glass-bg: rgba(255,255,255,0.07);
            --glass-bg-strong: rgba(255,255,255,0.10);
            --glass-border: rgba(255,255,255,0.14);
            --glass-border-strong: rgba(255,255,255,0.22);
            --card-radius: 18px;
            --btn-radius: 10px;
            --chip-radius: 999px;
            --input-radius: 10px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-card-hover: 0 16px 48px rgba(0,0,0,0.5), 0 0 24px rgba(0,212,255,0.12);
            --shadow-glow-blue: 0 0 18px rgba(46,107,255,0.4);
            --shadow-glow-cyan: 0 0 18px rgba(0,212,255,0.45);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --section-pad: 72px 0;
            --container-width: 1200px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            font-size: 16px;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--cyan-bright);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #8AE6FF;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        .section {
            padding: var(--section-pad);
            position: relative;
        }
        .section-alt {
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .section-tight {
            padding: 48px 0;
        }
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .glass-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
            pointer-events: none;
            z-index: 1;
        }
        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--btn-radius);
            transition: all var(--transition-smooth);
            letter-spacing: 0.5px;
            line-height: 1.4;
            text-decoration: none;
            white-space: nowrap;
            position: relative;
            outline: none;
        }
        .btn:focus {
            outline: 2px solid var(--cyan-bright);
            outline-offset: 3px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--blue-primary) 0%, var(--cyan-bright) 100%);
            color: #FFFFFF;
            box-shadow: var(--shadow-glow-cyan);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0,212,255,0.6), 0 8px 32px rgba(0,0,0,0.3);
            color: #FFFFFF;
        }
        .btn-primary:active {
            transform: translateY(0) scale(0.98);
            box-shadow: 0 0 16px rgba(0,212,255,0.4);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(0,212,255,0.5);
            color: var(--cyan-bright);
        }
        .btn-ghost:hover {
            background: rgba(0,212,255,0.1);
            border-color: var(--cyan-bright);
            color: #8AE6FF;
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(0,212,255,0.25);
        }
        .btn-ghost:active {
            transform: translateY(0) scale(0.98);
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 13px;
        }
        .btn-readmore {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-bright);
            padding: 8px 18px;
            border-radius: var(--btn-radius);
            border: 1px solid rgba(0,212,255,0.35);
            background: rgba(0,212,255,0.06);
            transition: all var(--transition-smooth);
            text-decoration: none;
        }
        .btn-readmore:hover {
            background: rgba(0,212,255,0.15);
            border-color: rgba(0,212,255,0.6);
            box-shadow: 0 0 16px rgba(0,212,255,0.3);
            color: #8AE6FF;
            transform: translateY(-1px);
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            padding: 7px 18px;
            border-radius: var(--chip-radius);
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.15);
            color: var(--text-secondary);
            transition: all var(--transition-smooth);
            white-space: nowrap;
            cursor: pointer;
            user-select: none;
        }
        .chip:hover {
            background: rgba(0,212,255,0.12);
            border-color: rgba(0,212,255,0.45);
            color: var(--cyan-bright);
            box-shadow: 0 0 14px rgba(0,212,255,0.25);
        }
        .chip.active {
            background: rgba(0,212,255,0.15);
            border-color: rgba(0,212,255,0.55);
            color: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0,212,255,0.3);
        }
        .chip-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan-bright);
            display: inline-block;
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; box-shadow: 0 0 6px rgba(0,212,255,0.8); }
            50% { opacity: 0.5; box-shadow: 0 0 2px rgba(0,212,255,0.3); }
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10,14,39,0.88);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 24px;
            max-width: var(--container-width);
            margin: 0 auto;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
        }
        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--blue-primary), var(--cyan-bright));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            box-shadow: 0 0 18px rgba(0,212,255,0.4);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            line-height: 1.2;
        }
        .logo-text small {
            display: block;
            font-size: 10px;
            font-weight: 400;
            color: var(--text-muted);
            letter-spacing: 3px;
            text-transform: uppercase;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            flex-wrap: wrap;
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            padding: 6px 2px;
            position: relative;
            transition: color var(--transition-fast);
            letter-spacing: 0.5px;
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-primary), var(--cyan-bright));
            border-radius: 2px;
            transform: scaleX(0);
            transition: transform var(--transition-smooth);
        }
        .nav-link:hover {
            color: var(--text-primary);
        }
        .nav-link:hover::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: var(--cyan-bright);
        }
        .nav-link.active::after {
            transform: scaleX(1);
            box-shadow: 0 0 8px rgba(0,212,255,0.6);
        }
        .nav-toggle {
            display: none;
            background: rgba(255,255,255,0.08);
            border: 1px solid rgba(255,255,255,0.18);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 20px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(0,212,255,0.15);
            border-color: rgba(0,212,255,0.4);
        }
        .notice-bar {
            background: rgba(11,16,38,0.85);
            border-top: 1px solid rgba(255,255,255,0.05);
            padding: 8px 0;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
        }
        .notice-bar-inner {
            display: flex;
            align-items: center;
            gap: 12px;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
            white-space: nowrap;
        }
        .notice-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--cyan-bright);
            letter-spacing: 1px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        /* Breadcrumb */
        .breadcrumb-area {
            padding: 20px 0 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            background: rgba(255,255,255,0.06);
            padding: 5px 14px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(255,255,255,0.12);
            transition: all var(--transition-fast);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--cyan-bright);
            border-color: rgba(0,212,255,0.4);
            background: rgba(0,212,255,0.08);
        }
        .breadcrumb .separator {
            color: var(--text-faint);
            font-size: 14px;
        }
        .breadcrumb .current {
            color: var(--text-primary);
            background: rgba(0,212,255,0.1);
            padding: 5px 14px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(0,212,255,0.3);
            font-weight: 500;
        }

        /* Category Header */
        .category-header {
            padding: 36px 0 24px;
            position: relative;
            overflow: hidden;
        }
        .category-header-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }
        .category-header-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(10,14,39,0.9) 0%, rgba(11,16,38,0.6) 60%, rgba(13,19,51,0.85) 100%);
            z-index: 1;
        }
        .category-header .container {
            position: relative;
            z-index: 2;
        }
        .category-header h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 1px;
            line-height: 1.3;
        }
        .category-header .category-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0;
            line-height: 1.8;
        }

        /* Filter Toolbar */
        .filter-toolbar {
            padding: 16px 0;
        }
        .filter-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            padding: 14px 20px;
        }
        .filter-chips {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-select-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .filter-select-wrap label {
            font-size: 13px;
            color: var(--text-muted);
        }
        .filter-select {
            background: rgba(255,255,255,0.08);
            border: 1px solid var(--glass-border);
            border-radius: var(--input-radius);
            color: var(--text-primary);
            padding: 8px 14px;
            font-size: 13px;
            min-width: 130px;
            outline: none;
            transition: all var(--transition-fast);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238A94B8' d='M1.41 0L6 4.59 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
            cursor: pointer;
        }
        .filter-select:focus {
            border-color: rgba(0,212,255,0.5);
            box-shadow: 0 0 12px rgba(0,212,255,0.25);
        }
        .filter-select option {
            background: var(--bg-panel);
            color: var(--text-primary);
        }

        /* Event List */
        .event-list-section {
            padding: 32px 0 48px;
        }
        .event-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .event-card {
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }
        .event-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
            background: rgba(255,255,255,0.04);
        }
        .event-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-smooth);
            border-radius: 0;
        }
        .event-card:hover .event-card-img-wrap img {
            transform: scale(1.05);
        }
        .event-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 3;
            background: rgba(10,14,39,0.8);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(0,212,255,0.4);
            color: var(--cyan-bright);
            font-size: 11px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--chip-radius);
            letter-spacing: 0.5px;
        }
        .event-card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .event-card-date {
            font-size: 12px;
            color: var(--text-muted);
            letter-spacing: 1px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .event-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin: 0 0 10px;
            letter-spacing: 0.3px;
        }
        .event-card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }
        .event-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .event-meta {
            font-size: 12px;
            color: var(--text-faint);
        }
        .list-more-area {
            text-align: center;
            padding: 32px 0 0;
        }

        /* Data Snapshot */
        .data-snapshot-section {
            padding: 48px 0;
        }
        .data-snap-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .data-snap-card {
            text-align: center;
            padding: 28px 20px;
        }
        .data-snap-num {
            font-size: 36px;
            font-weight: 700;
            color: var(--cyan-bright);
            line-height: 1.2;
            letter-spacing: 1px;
            text-shadow: 0 0 20px rgba(0,212,255,0.5);
        }
        .data-snap-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 8px;
            letter-spacing: 0.5px;
        }
        .data-snap-sub {
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 4px;
        }

        /* Topic Recommendation */
        .topic-section {
            padding: 48px 0;
        }
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 18px 20px;
        }
        .topic-card-img {
            width: 64px;
            height: 64px;
            border-radius: 12px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .topic-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }
        .topic-card-info h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 6px;
            line-height: 1.3;
        }
        .topic-card-info p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* FAQ */
        .faq-section {
            padding: 48px 0;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            overflow: hidden;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            user-select: none;
            transition: all var(--transition-fast);
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
        }
        .faq-question:hover {
            border-color: rgba(0,212,255,0.4);
            background: rgba(0,212,255,0.05);
        }
        .faq-icon {
            font-size: 18px;
            color: var(--cyan-bright);
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 20px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* Subscribe CTA */
        .subscribe-section {
            padding: 56px 0 72px;
        }
        .subscribe-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 36px 40px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .subscribe-card::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0,212,255,0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .subscribe-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            letter-spacing: 0.5px;
            position: relative;
            z-index: 1;
        }
        .subscribe-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            position: relative;
            z-index: 1;
        }
        .subscribe-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .footer-col ul a:hover {
            color: var(--cyan-bright);
        }
        .footer-contact {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }
        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255,255,255,0.07);
            border: 1px solid rgba(255,255,255,0.14);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 16px;
            transition: all var(--transition-smooth);
            text-decoration: none;
        }
        .footer-social a:hover {
            background: rgba(0,212,255,0.15);
            border-color: rgba(0,212,255,0.45);
            color: var(--cyan-bright);
            box-shadow: 0 0 16px rgba(0,212,255,0.3);
            transform: translateY(-2px);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 0;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-faint);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--cyan-bright);
        }
        .footer-links span {
            color: var(--text-faint);
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .event-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-snap-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 767px) {
            .header-inner {
                padding: 10px 16px;
                gap: 14px;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10,14,39,0.96);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid rgba(255,255,255,0.08);
                padding: 16px 24px;
                flex-direction: column;
                gap: 14px;
                align-items: flex-start;
            }
            .nav-links.is-open {
                display: flex;
            }
            .nav-link {
                font-size: 15px;
                padding: 8px 0;
                width: 100%;
            }
            .nav-link::after {
                display: none;
            }
            .notice-bar-inner {
                gap: 8px;
                padding: 0 16px;
            }
            .category-header h1 {
                font-size: 24px;
            }
            .category-header .category-desc {
                font-size: 14px;
            }
            .filter-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .filter-select-wrap {
                width: 100%;
                justify-content: space-between;
            }
            .event-grid {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .data-snap-grid {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 10px;
            }
            .data-snap-num {
                font-size: 24px;
            }
            .data-snap-label {
                font-size: 12px;
            }
            .subscribe-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 20px;
            }
            .subscribe-actions {
                width: 100%;
            }
            .subscribe-actions .btn {
                flex: 1;
                justify-content: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .section {
                padding: 48px 0;
            }
            .section-tight {
                padding: 32px 0;
            }
            .event-list-section {
                padding: 20px 0 32px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-header h1 {
                font-size: 20px;
            }
            .data-snap-grid {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .btn {
                padding: 11px 20px;
                font-size: 14px;
            }
            .btn-sm {
                padding: 8px 16px;
                font-size: 12px;
            }
            .logo-text {
                font-size: 17px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .filter-inner {
                padding: 12px 16px;
            }
            .event-card-body {
                padding: 14px 16px 16px;
            }
            .event-card-title {
                font-size: 16px;
            }
            .event-card-summary {
                font-size: 13px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-deep: #0A0E27;
            --bg-mid: #0B1026;
            --bg-panel: #0D1333;
            --blue-primary: #2E6BFF;
            --cyan-bright: #00D4FF;
            --purple-energy: #7C3AED;
            --text-primary: #F2F5FF;
            --text-secondary: #C9D1EA;
            --text-muted: #8A94B8;
            --text-faint: #5C6690;
            --glass-bg: rgba(255,255,255,0.07);
            --glass-bg-strong: rgba(255,255,255,0.10);
            --glass-border: rgba(255,255,255,0.14);
            --glass-border-strong: rgba(255,255,255,0.22);
            --card-radius: 18px;
            --btn-radius: 10px;
            --chip-radius: 999px;
            --input-radius: 10px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-card-hover: 0 16px 48px rgba(0,0,0,0.5), 0 0 24px rgba(0,212,255,0.12);
            --shadow-glow-blue: 0 0 18px rgba(46,107,255,0.4);
            --shadow-glow-cyan: 0 0 18px rgba(0,212,255,0.45);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --section-pad: 64px 0;
            --container-width: 1200px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            font-size: 16px;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--cyan-bright);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #8AE6FF;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .section {
            padding: var(--section-pad);
            position: relative;
        }

        .section-alt {
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .section-tight {
            padding: 40px 0;
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-header .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--cyan-bright);
            margin-bottom: 12px;
            background: rgba(0,212,255,0.08);
            padding: 6px 16px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(0,212,255,0.2);
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 1px;
            line-height: 1.3;
        }

        .section-header .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 760px;
            margin: 0;
            line-height: 1.8;
        }

        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .glass-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
            pointer-events: none;
            z-index: 1;
        }

        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--btn-radius);
            transition: all var(--transition-smooth);
            letter-spacing: 0.5px;
            line-height: 1.4;
            text-decoration: none;
            white-space: nowrap;
            position: relative;
            outline: none;
        }

        .btn:focus {
            outline: 2px solid var(--cyan-bright);
            outline-offset: 3px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--blue-primary) 0%, var(--cyan-bright) 100%);
            color: #FFFFFF;
            box-shadow: var(--shadow-glow-cyan);
            border: none;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0,212,255,0.6), 0 8px 32px rgba(0,0,0,0.3);
            color: #FFFFFF;
        }

        .btn-primary:active {
            transform: translateY(-1px) scale(0.98);
        }

        .btn-ghost {
            background: transparent;
            color: var(--cyan-bright);
            border: 1px solid rgba(0,212,255,0.4);
        }

        .btn-ghost:hover {
            background: rgba(0,212,255,0.08);
            border-color: rgba(0,212,255,0.7);
            color: #8AE6FF;
            transform: translateY(-2px);
        }

        .btn-ghost:active {
            transform: translateY(-1px) scale(0.98);
        }

        .btn-sm {
            font-size: 14px;
            padding: 10px 20px;
            border-radius: 8px;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--chip-radius);
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--glass-border);
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .chip:hover {
            border-color: rgba(0,212,255,0.5);
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.06);
        }

        .chip.active {
            background: rgba(0,212,255,0.12);
            border-color: rgba(0,212,255,0.5);
            color: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0,212,255,0.2);
        }

        .chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 8px rgba(0,212,255,0.6);
            display: inline-block;
            flex-shrink: 0;
        }

        /* Header / Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10,14,39,0.88);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            transition: box-shadow var(--transition-smooth);
        }

        .site-header.scrolled {
            box-shadow: 0 8px 40px rgba(0,0,0,0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 16px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--blue-primary) 0%, var(--cyan-bright) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            box-shadow: 0 0 16px rgba(0,212,255,0.4);
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .logo-text .en {
            display: block;
            font-size: 10px;
            font-weight: 400;
            letter-spacing: 2px;
            color: var(--text-muted);
            text-transform: uppercase;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: 8px;
            text-decoration: none;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
            position: relative;
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--cyan-bright), var(--blue-primary));
            border-radius: 2px;
            transition: width var(--transition-smooth);
        }

        .nav-link:hover {
            color: var(--text-primary);
        }

        .nav-link:hover::after {
            width: 60%;
        }

        .nav-link.active {
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.06);
        }

        .nav-link.active::after {
            width: 60%;
        }

        .nav-notice-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: var(--chip-radius);
            background: rgba(255,180,40,0.1);
            border: 1px solid rgba(255,180,40,0.35);
            color: #FFB428;
            text-decoration: none;
            transition: all var(--transition-fast);
            margin-left: 8px;
            white-space: nowrap;
            letter-spacing: 0.5px;
        }

        .nav-notice-chip:hover {
            background: rgba(255,180,40,0.18);
            border-color: rgba(255,180,40,0.6);
            color: #FFD066;
            box-shadow: 0 0 14px rgba(255,180,40,0.25);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            transition: all var(--transition-fast);
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition-smooth);
        }

        .nav-toggle:hover {
            background: rgba(255,255,255,0.1);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            padding: 20px 0;
            background: rgba(255,255,255,0.02);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
            padding: 4px 12px;
            border-radius: var(--chip-radius);
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.08);
        }

        .breadcrumb a:hover {
            color: var(--cyan-bright);
            border-color: rgba(0,212,255,0.35);
            background: rgba(0,212,255,0.06);
        }

        .breadcrumb .separator {
            color: var(--text-faint);
            font-size: 12px;
        }

        .breadcrumb .current {
            padding: 4px 12px;
            border-radius: var(--chip-radius);
            background: rgba(0,212,255,0.08);
            border: 1px solid rgba(0,212,255,0.25);
            color: var(--cyan-bright);
            font-weight: 500;
        }

        /* Page Header / Category H1 */
        .page-header {
            padding: 48px 0 32px;
            background: linear-gradient(180deg, rgba(13,19,51,0.6) 0%, rgba(10,14,39,0) 100%);
            position: relative;
        }

        .page-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 20% 30%, rgba(46,107,255,0.08) 0%, transparent 60%),
                        radial-gradient(ellipse at 80% 20%, rgba(0,212,255,0.06) 0%, transparent 50%);
            pointer-events: none;
        }

        .page-header .container {
            position: relative;
            z-index: 1;
        }

        .page-header-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }

        .page-header-text {
            flex: 1;
            min-width: 280px;
            max-width: 640px;
        }

        .page-header h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px;
            letter-spacing: 1px;
            line-height: 1.3;
        }

        .page-header .page-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        .page-header-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.08);
            border: 1px solid rgba(0,212,255,0.2);
            padding: 8px 16px;
            border-radius: var(--chip-radius);
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .page-header-stats {
            display: flex;
            gap: 28px;
            flex-shrink: 0;
            align-items: center;
        }

        .page-stat {
            text-align: center;
            padding: 16px 22px;
            background: rgba(255,255,255,0.04);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: 14px;
            min-width: 100px;
        }

        .page-stat .stat-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--cyan-bright);
            line-height: 1.2;
            letter-spacing: 1px;
        }

        .page-stat .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* Filter Toolbar */
        .filter-toolbar {
            padding: 20px 0;
            position: relative;
            z-index: 5;
        }

        .filter-toolbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 16px 20px;
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            box-shadow: var(--shadow-card);
        }

        .filter-chips {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .sort-select-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .sort-label {
            font-size: 14px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .sort-select {
            background: rgba(255,255,255,0.06);
            border: 1px solid var(--glass-border);
            border-radius: 8px;
            color: var(--text-primary);
            padding: 8px 14px;
            font-size: 14px;
            cursor: pointer;
            outline: none;
            transition: all var(--transition-fast);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A94B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
        }

        .sort-select:hover {
            border-color: rgba(0,212,255,0.4);
        }

        .sort-select:focus {
            border-color: var(--cyan-bright);
            box-shadow: 0 0 8px rgba(0,212,255,0.25);
        }

        /* Article Cards Grid */
        .article-grid {
            padding: 32px 0;
        }

        .article-grid-inner {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }

        .article-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            border-radius: var(--card-radius) var(--card-radius) 0 0;
            aspect-ratio: 16/9;
            background: rgba(255,255,255,0.04);
        }

        .article-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
            border-radius: 0;
        }

        .article-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .article-card .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--chip-radius);
            background: rgba(10,14,39,0.85);
            border: 1px solid rgba(0,212,255,0.3);
            color: var(--cyan-bright);
            backdrop-filter: blur(10px);
            letter-spacing: 0.5px;
            z-index: 2;
        }

        .article-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-card .card-date {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-card .card-date i {
            color: var(--cyan-bright);
            font-size: 12px;
        }

        .article-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
            line-height: 1.5;
            letter-spacing: 0.5px;
        }

        .article-card .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 18px;
            flex: 1;
        }

        .article-card .btn-read {
            align-self: flex-end;
            font-size: 13px;
            font-weight: 500;
            color: var(--cyan-bright);
            padding: 8px 16px;
            border-radius: 8px;
            border: 1px solid rgba(0,212,255,0.3);
            background: rgba(0,212,255,0.05);
            transition: all var(--transition-fast);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-card .btn-read:hover {
            background: rgba(0,212,255,0.15);
            border-color: rgba(0,212,255,0.6);
            color: #8AE6FF;
            box-shadow: 0 0 12px rgba(0,212,255,0.2);
        }

        /* Data Snapshot */
        .stats-snapshot {
            padding: 40px 0;
        }

        .stats-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .stat-box {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            padding: 22px 24px;
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .stat-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--blue-primary), var(--cyan-bright));
            border-radius: 0 0 6px 6px;
        }

        .stat-box:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.3);
        }

        .stat-box .stat-icon {
            font-size: 26px;
            color: var(--cyan-bright);
            margin-bottom: 10px;
            display: block;
        }

        .stat-box .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .stat-box .stat-unit {
            font-size: 15px;
            color: var(--cyan-bright);
            font-weight: 500;
        }

        .stat-box .stat-name {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* Topic Spotlight */
        .topic-cards {
            padding: 40px 0;
        }

        .topic-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .topic-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            overflow: hidden;
            transition: all var(--transition-smooth);
            position: relative;
            box-shadow: var(--shadow-card);
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }

        .topic-card .topic-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            border-radius: var(--card-radius) var(--card-radius) 0 0;
        }

        .topic-card .topic-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
            border-radius: 0;
        }

        .topic-card:hover .topic-img img {
            transform: scale(1.04);
        }

        .topic-card .topic-body {
            padding: 18px 20px 20px;
        }

        .topic-card .topic-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--cyan-bright);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }

        .topic-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.5;
        }

        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* FAQ Section */
        .faq-section {
            padding: 48px 0;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            overflow: hidden;
            transition: all var(--transition-smooth);
        }

        .faq-item:hover {
            border-color: rgba(0,212,255,0.3);
        }

        .faq-question {
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            transition: all var(--transition-fast);
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            color: var(--cyan-bright);
        }

        .faq-question .faq-icon {
            font-size: 16px;
            color: var(--cyan-bright);
            transition: transform var(--transition-smooth);
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0,212,255,0.08);
            border-radius: 6px;
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
            border-top: 1px solid rgba(255,255,255,0.06);
            padding-top: 14px;
        }

        /* CTA Banner */
        .cta-section {
            padding: 48px 0;
        }

        .cta-banner {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            padding: 40px 36px;
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0,212,255,0.1) 0%, transparent 65%);
            pointer-events: none;
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(46,107,255,0.08) 0%, transparent 60%);
            pointer-events: none;
        }

        .cta-banner-text {
            position: relative;
            z-index: 1;
            flex: 1;
            min-width: 260px;
        }

        .cta-banner-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
            letter-spacing: 0.5px;
        }

        .cta-banner-text p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0;
        }

        .cta-banner-actions {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 14px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: #070A1E;
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 52px 0 28px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-col ul li a:hover {
            color: var(--cyan-bright);
        }

        .footer-contact {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0 0 14px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 14px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 16px;
            transition: all var(--transition-fast);
        }

        .footer-social a:hover {
            background: rgba(0,212,255,0.1);
            border-color: rgba(0,212,255,0.35);
            color: var(--cyan-bright);
            transform: translateY(-2px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 22px;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 13px;
            color: var(--text-faint);
        }

        .footer-bottom .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-bottom .footer-links a {
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-bottom .footer-links a:hover {
            color: var(--cyan-bright);
        }

        .footer-bottom .footer-links span {
            color: var(--text-faint);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .article-grid-inner {
                grid-template-columns: repeat(2, 1fr);
            }

            .topic-cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-snapshot-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .nav-links {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10,14,39,0.98);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding: 12px 24px 20px;
                border-bottom: 1px solid rgba(255,255,255,0.08);
                display: none;
                box-shadow: 0 20px 60px rgba(0,0,0,0.5);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-link {
                padding: 12px 16px;
                font-size: 16px;
                border-radius: 8px;
            }

            .nav-link::after {
                display: none;
            }

            .nav-notice-chip {
                margin-left: 0;
                margin-top: 8px;
                justify-content: center;
            }

            .page-header-inner {
                flex-direction: column;
                gap: 20px;
            }

            .page-header h1 {
                font-size: 26px;
            }

            .page-header-stats {
                gap: 12px;
                flex-wrap: wrap;
            }

            .page-stat {
                min-width: 80px;
                padding: 12px 16px;
            }

            .page-stat .stat-num {
                font-size: 22px;
            }

            .filter-toolbar-inner {
                flex-direction: column;
                align-items: stretch;
                gap: 14px;
            }

            .sort-select-wrapper {
                justify-content: space-between;
            }

            .article-grid-inner {
                grid-template-columns: 1fr;
            }

            .topic-cards-grid {
                grid-template-columns: 1fr;
            }

            .stats-snapshot-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .cta-banner {
                padding: 28px 22px;
            }

            .cta-banner-actions {
                width: 100%;
                flex-direction: column;
            }

            .cta-banner-actions .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .section {
                padding: 40px 0;
            }

            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .page-header h1 {
                font-size: 22px;
            }

            .page-header .page-desc {
                font-size: 14px;
                line-height: 1.7;
            }

            .article-card .card-body {
                padding: 16px 16px 18px;
            }

            .article-card h3 {
                font-size: 16px;
            }

            .article-card .card-excerpt {
                font-size: 13px;
            }

            .stat-box .stat-number {
                font-size: 26px;
            }

            .cta-banner-text h3 {
                font-size: 20px;
            }

            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }

            .faq-answer {
                padding: 0 16px;
            }

            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

/* roulang page: category6 */
:root {
        --bg-deep: #0A0E27;
        --bg-mid: #0B1026;
        --bg-panel: #0D1333;
        --blue-primary: #2E6BFF;
        --cyan-bright: #00D4FF;
        --purple-energy: #7C3AED;
        --text-primary: #F2F5FF;
        --text-secondary: #C9D1EA;
        --text-muted: #8A94B8;
        --text-faint: #5C6690;
        --glass-bg: rgba(255,255,255,0.07);
        --glass-bg-strong: rgba(255,255,255,0.10);
        --glass-border: rgba(255,255,255,0.14);
        --glass-border-strong: rgba(255,255,255,0.22);
        --card-radius: 18px;
        --btn-radius: 10px;
        --chip-radius: 999px;
        --input-radius: 10px;
        --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
        --shadow-card-hover: 0 16px 48px rgba(0,0,0,0.5), 0 0 24px rgba(0,212,255,0.12);
        --shadow-glow-blue: 0 0 18px rgba(46,107,255,0.4);
        --shadow-glow-cyan: 0 0 18px rgba(0,212,255,0.45);
        --transition-fast: 0.2s ease;
        --transition-smooth: 0.3s cubic-bezier(0.4,0,0.2,1);
        --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
        --section-pad: 72px 0;
        --container-width: 1200px;
    }

    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    body {
        font-family: var(--font-sans);
        background: var(--bg-deep);
        color: var(--text-primary);
        line-height: 1.7;
        margin: 0;
        padding: 0;
        min-height: 100vh;
        font-size: 16px;
        overflow-x: hidden;
    }

    img {
        max-width: 100%;
        height: auto;
        display: block;
        border-radius: 12px;
    }

    a {
        color: var(--cyan-bright);
        text-decoration: none;
        transition: color var(--transition-fast);
    }

    a:hover {
        color: #8AE6FF;
    }

    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: inherit;
        color: inherit;
    }

    button {
        cursor: pointer;
        border: none;
        background: none;
        padding: 0;
    }

    .container {
        max-width: var(--container-width);
        margin: 0 auto;
        padding: 0 24px;
        width: 100%;
    }

    .section {
        padding: var(--section-pad);
        position: relative;
    }

    .section-alt {
        background: var(--bg-mid);
        border-top: 1px solid rgba(255,255,255,0.05);
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }

    .section-tight {
        padding: 48px 0;
    }

    .glass-card {
        background: var(--glass-bg);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border: 1px solid var(--glass-border);
        border-radius: var(--card-radius);
        box-shadow: var(--shadow-card);
        transition: all var(--transition-smooth);
        position: relative;
        overflow: hidden;
    }

    .glass-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 1px;
        background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
        pointer-events: none;
    }

    .glass-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-card-hover);
        border-color: rgba(0,212,255,0.35);
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        font-size: 15px;
        font-weight: 600;
        padding: 13px 28px;
        border-radius: var(--btn-radius);
        transition: all var(--transition-smooth);
        letter-spacing: 0.5px;
        line-height: 1.4;
        text-decoration: none;
        white-space: nowrap;
        position: relative;
        outline: none;
    }

    .btn:focus {
        outline: 2px solid var(--cyan-bright);
        outline-offset: 3px;
    }

    .btn-primary {
        background: linear-gradient(135deg, var(--blue-primary) 0%, var(--cyan-bright) 100%);
        color: #FFFFFF;
        box-shadow: var(--shadow-glow-cyan);
        border: none;
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 0 30px rgba(0,212,255,0.6), 0 8px 32px rgba(0,0,0,0.3);
        color: #FFFFFF;
    }

    .btn-primary:active {
        transform: scale(0.98);
    }

    .btn-ghost {
        background: transparent;
        color: var(--cyan-bright);
        border: 1px solid rgba(0,212,255,0.45);
        box-shadow: none;
    }

    .btn-ghost:hover {
        background: rgba(0,212,255,0.10);
        border-color: rgba(0,212,255,0.65);
        color: #8AE6FF;
    }

    .btn-read {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        font-weight: 600;
        padding: 9px 16px;
        border-radius: var(--btn-radius);
        background: transparent;
        color: var(--cyan-bright);
        border: 1px solid rgba(0,212,255,0.35);
        transition: all var(--transition-smooth);
        text-decoration: none;
        letter-spacing: 0.5px;
    }

    .btn-read:hover {
        background: rgba(0,212,255,0.12);
        border-color: rgba(0,212,255,0.7);
        color: #FFFFFF;
        box-shadow: 0 0 14px rgba(0,212,255,0.3);
    }

    .btn-read:focus {
        outline: 2px solid var(--cyan-bright);
        outline-offset: 3px;
    }

    .chip {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        font-weight: 500;
        padding: 8px 18px;
        border-radius: var(--chip-radius);
        background: rgba(255,255,255,0.05);
        border: 1px solid var(--glass-border);
        color: var(--text-secondary);
        transition: all var(--transition-fast);
        cursor: pointer;
        text-decoration: none;
        white-space: nowrap;
    }

    .chip:hover {
        border-color: rgba(0,212,255,0.5);
        background: rgba(0,212,255,0.10);
        color: var(--cyan-bright);
        box-shadow: 0 0 12px rgba(0,212,255,0.2);
    }

    .chip.active {
        background: rgba(0,212,255,0.15);
        border-color: rgba(0,212,255,0.55);
        color: var(--cyan-bright);
        box-shadow: 0 0 12px rgba(0,212,255,0.25);
    }

    .chip .dot {
        width: 6px;
        height: 6px;
        background: currentColor;
        border-radius: 50%;
        display: inline-block;
    }

    .top-header {
        background: rgba(10,14,39,0.92);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-bottom: 1px solid rgba(255,255,255,0.08);
        position: sticky;
        top: 0;
        z-index: 100;
        transition: box-shadow var(--transition-smooth);
    }

    .top-header .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 68px;
        gap: 20px;
    }

    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        text-decoration: none;
        color: var(--text-primary);
        font-weight: 700;
        font-size: 20px;
        letter-spacing: 1px;
        white-space: nowrap;
    }

    .logo .logo-icon {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--blue-primary), var(--cyan-bright));
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        color: #FFFFFF;
        box-shadow: 0 0 14px rgba(0,212,255,0.4);
        flex-shrink: 0;
    }

    .logo:hover {
        color: var(--cyan-bright);
    }

    .nav-links {
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .nav-link {
        color: var(--text-secondary);
        text-decoration: none;
        font-size: 14px;
        font-weight: 500;
        padding: 8px 14px;
        border-radius: 8px;
        transition: all var(--transition-fast);
        position: relative;
        white-space: nowrap;
    }

    .nav-link:hover {
        color: var(--text-primary);
        background: rgba(255,255,255,0.06);
    }

    .nav-link.active {
        color: var(--cyan-bright);
        background: rgba(0,212,255,0.10);
    }

    .nav-link.active::after {
        content: '';
        position: absolute;
        bottom: -1px;
        left: 14px;
        right: 14px;
        height: 2px;
        background: var(--cyan-bright);
        border-radius: 2px;
        box-shadow: 0 0 8px rgba(0,212,255,0.6);
    }

    .nav-actions {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .nav-actions .btn {
        padding: 9px 18px;
        font-size: 13px;
    }

    .mobile-toggle {
        display: none;
        flex-direction: column;
        gap: 5px;
        background: transparent;
        border: none;
        padding: 6px;
        cursor: pointer;
    }

    .mobile-toggle span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--text-primary);
        border-radius: 2px;
        transition: all var(--transition-fast);
    }

    .breadcrumb {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 13px;
        color: var(--text-muted);
        padding: 18px 0 0;
    }

    .breadcrumb a {
        color: var(--text-secondary);
        text-decoration: none;
        padding: 4px 12px;
        border-radius: var(--chip-radius);
        background: rgba(255,255,255,0.05);
        border: 1px solid rgba(255,255,255,0.08);
        transition: all var(--transition-fast);
    }

    .breadcrumb a:hover {
        color: var(--cyan-bright);
        background: rgba(0,212,255,0.08);
        border-color: rgba(0,212,255,0.3);
    }

    .breadcrumb .sep {
        color: var(--text-faint);
    }

    .breadcrumb .current {
        padding: 4px 12px;
        border-radius: var(--chip-radius);
        background: rgba(0,212,255,0.10);
        border: 1px solid rgba(0,212,255,0.25);
        color: var(--cyan-bright);
    }

    .cat-header {
        padding: 40px 0 24px;
        border-bottom: 1px solid rgba(255,255,255,0.06);
        margin-bottom: 32px;
    }

    .cat-header h1 {
        font-size: 34px;
        font-weight: 700;
        margin: 0 0 12px;
        color: var(--text-primary);
        letter-spacing: 1px;
        line-height: 1.3;
    }

    .cat-header .cat-desc {
        font-size: 16px;
        color: var(--text-secondary);
        margin: 0;
        max-width: 780px;
        line-height: 1.8;
    }

    .toolbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 16px;
        padding: 16px 20px;
        background: var(--glass-bg);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border: 1px solid var(--glass-border);
        border-radius: 14px;
        margin-bottom: 32px;
    }

    .toolbar-filters {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
    }

    .toolbar-select {
        display: flex;
        align-items: center;
        gap: 8px;
        background: rgba(255,255,255,0.05);
        border: 1px solid var(--glass-border);
        border-radius: var(--btn-radius);
        padding: 8px 14px;
        color: var(--text-secondary);
        font-size: 13px;
        min-width: 140px;
    }

    .toolbar-select select {
        background: transparent;
        border: none;
        color: var(--text-primary);
        font-size: 13px;
        outline: none;
        cursor: pointer;
        appearance: none;
    }

    .toolbar-select select option {
        background: var(--bg-panel);
        color: var(--text-primary);
    }

    .article-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .article-card {
        display: flex;
        flex-direction: column;
        background: var(--glass-bg);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border: 1px solid var(--glass-border);
        border-radius: var(--card-radius);
        box-shadow: var(--shadow-card);
        overflow: hidden;
        transition: all var(--transition-smooth);
        position: relative;
    }

    .article-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-card-hover);
        border-color: rgba(0,212,255,0.35);
    }

    .article-card .card-img {
        width: 100%;
        aspect-ratio: 16/9;
        object-fit: cover;
        background: rgba(255,255,255,0.05);
    }

    .article-card .card-body {
        padding: 20px 22px 22px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }

    .article-card .card-date {
        font-size: 13px;
        color: var(--text-muted);
        margin-bottom: 8px;
        letter-spacing: 0.5px;
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .article-card .card-date i {
        color: var(--cyan-bright);
        font-size: 12px;
    }

    .article-card .card-title {
        font-size: 19px;
        font-weight: 700;
        color: var(--text-primary);
        margin: 0 0 10px;
        line-height: 1.4;
        letter-spacing: 0.5px;
    }

    .article-card .card-summary {
        font-size: 14px;
        color: var(--text-secondary);
        margin: 0 0 16px;
        line-height: 1.8;
        flex: 1;
    }

    .article-card .card-footer {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        flex-wrap: wrap;
    }

    .article-card .card-tag {
        font-size: 11px;
        padding: 4px 12px;
        border-radius: var(--chip-radius);
        background: rgba(124,58,237,0.15);
        border: 1px solid rgba(124,58,237,0.35);
        color: #B99CF0;
        letter-spacing: 0.5px;
    }

    .data-cards {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .data-card {
        background: var(--glass-bg);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border: 1px solid var(--glass-border);
        border-radius: 16px;
        padding: 24px;
        box-shadow: var(--shadow-card);
        transition: all var(--transition-smooth);
        text-align: center;
    }

    .data-card:hover {
        transform: translateY(-3px);
        box-shadow: var(--shadow-card-hover);
        border-color: rgba(0,212,255,0.3);
    }

    .data-card .data-num {
        font-size: 32px;
        font-weight: 700;
        color: var(--cyan-bright);
        margin-bottom: 8px;
        letter-spacing: 1px;
        text-shadow: 0 0 18px rgba(0,212,255,0.5);
    }

    .data-card .data-label {
        font-size: 14px;
        color: var(--text-secondary);
        margin: 0;
    }

    .topic-cards {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .topic-card {
        background: var(--glass-bg);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border: 1px solid var(--glass-border);
        border-radius: var(--card-radius);
        padding: 22px;
        box-shadow: var(--shadow-card);
        transition: all var(--transition-smooth);
        text-decoration: none;
        color: var(--text-primary);
        display: block;
    }

    .topic-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-card-hover);
        border-color: rgba(124,58,237,0.4);
        color: var(--text-primary);
    }

    .topic-card .topic-icon {
        width: 44px;
        height: 44px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        margin-bottom: 14px;
        background: linear-gradient(135deg, rgba(46,107,255,0.2), rgba(0,212,255,0.2));
        border: 1px solid rgba(0,212,255,0.25);
        color: var(--cyan-bright);
    }

    .topic-card h3 {
        font-size: 17px;
        font-weight: 700;
        margin: 0 0 8px;
        color: var(--text-primary);
        line-height: 1.4;
    }

    .topic-card p {
        font-size: 13px;
        color: var(--text-muted);
        margin: 0;
        line-height: 1.7;
    }

    .faq-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
        max-width: 860px;
        margin: 0 auto;
    }

    .faq-item {
        background: var(--glass-bg);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border: 1px solid var(--glass-border);
        border-radius: 14px;
        overflow: hidden;
        transition: all var(--transition-fast);
    }

    .faq-item:hover {
        border-color: rgba(0,212,255,0.3);
    }

    .faq-question {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        padding: 18px 22px;
        color: var(--text-primary);
        font-size: 15px;
        font-weight: 600;
        background: transparent;
        border: none;
        cursor: pointer;
        text-align: left;
        transition: all var(--transition-fast);
    }

    .faq-question:hover {
        color: var(--cyan-bright);
    }

    .faq-question .faq-icon {
        font-size: 18px;
        color: var(--cyan-bright);
        flex-shrink: 0;
        transition: transform var(--transition-fast);
    }

    .faq-item.open .faq-icon {
        transform: rotate(45deg);
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-smooth);
    }

    .faq-item.open .faq-answer {
        max-height: 400px;
    }

    .faq-answer-inner {
        padding: 0 22px 20px;
        font-size: 14px;
        color: var(--text-secondary);
        line-height: 1.8;
    }

    .cta-bar {
        background: linear-gradient(135deg, rgba(46,107,255,0.15), rgba(0,212,255,0.10), rgba(124,58,237,0.12));
        backdrop-filter: blur(22px);
        -webkit-backdrop-filter: blur(22px);
        border: 1px solid rgba(0,212,255,0.25);
        border-radius: var(--card-radius);
        box-shadow: var(--shadow-card);
        padding: 32px 28px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        flex-wrap: wrap;
    }

    .cta-bar h2 {
        font-size: 22px;
        font-weight: 700;
        color: var(--text-primary);
        margin: 0 0 8px;
        letter-spacing: 0.5px;
    }

    .cta-bar p {
        font-size: 14px;
        color: var(--text-secondary);
        margin: 0;
        line-height: 1.7;
    }

    .cta-bar .cta-actions {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-wrap: wrap;
    }

    .resource-list {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .resource-list a {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: 13px;
        padding: 8px 16px;
        border-radius: var(--chip-radius);
        background: rgba(255,255,255,0.05);
        border: 1px solid var(--glass-border);
        color: var(--text-secondary);
        transition: all var(--transition-fast);
        text-decoration: none;
    }

    .resource-list a:hover {
        background: rgba(0,212,255,0.08);
        border-color: rgba(0,212,255,0.4);
        color: var(--cyan-bright);
    }

    .site-footer {
        background: var(--bg-panel);
        border-top: 1px solid rgba(255,255,255,0.06);
        padding: 48px 0 24px;
        margin-top: 60px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
        gap: 32px;
        margin-bottom: 32px;
    }

    .footer-col h4 {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-primary);
        margin: 0 0 14px;
        letter-spacing: 0.5px;
    }

    .footer-col p {
        font-size: 13px;
        color: var(--text-muted);
        line-height: 1.8;
        margin: 0 0 12px;
    }

    .footer-col ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .footer-col ul li {
        margin-bottom: 8px;
    }

    .footer-col ul li a {
        font-size: 13px;
        color: var(--text-muted);
        text-decoration: none;
        transition: color var(--transition-fast);
    }

    .footer-col ul li a:hover {
        color: var(--cyan-bright);
    }

    .footer-social {
        display: flex;
        gap: 12px;
        margin-top: 12px;
    }

    .footer-social a {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255,255,255,0.06);
        border: 1px solid var(--glass-border);
        color: var(--text-muted);
        font-size: 15px;
        transition: all var(--transition-fast);
        text-decoration: none;
    }

    .footer-social a:hover {
        background: rgba(0,212,255,0.12);
        border-color: rgba(0,212,255,0.4);
        color: var(--cyan-bright);
        box-shadow: 0 0 12px rgba(0,212,255,0.25);
    }

    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        padding-top: 20px;
        border-top: 1px solid rgba(255,255,255,0.06);
        font-size: 12px;
        color: var(--text-faint);
    }

    .footer-bottom .footer-links {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .footer-bottom .footer-links a {
        font-size: 12px;
        color: var(--text-faint);
        text-decoration: none;
        transition: color var(--transition-fast);
    }

    .footer-bottom .footer-links a:hover {
        color: var(--cyan-bright);
    }

    .section-header {
        margin-bottom: 36px;
    }

    .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 13px;
        font-weight: 500;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: var(--cyan-bright);
        margin-bottom: 12px;
        background: rgba(0,212,255,0.08);
        padding: 6px 16px;
        border-radius: var(--chip-radius);
        border: 1px solid rgba(0,212,255,0.2);
    }

    .eyebrow .dot {
        width: 6px;
        height: 6px;
        background: currentColor;
        border-radius: 50%;
        display: inline-block;
    }

    .section-header h2 {
        font-size: 28px;
        font-weight: 700;
        color: var(--text-primary);
        margin: 0 0 12px;
        letter-spacing: 1px;
        line-height: 1.3;
    }

    .section-header .section-desc {
        font-size: 16px;
        color: var(--text-secondary);
        max-width: 760px;
        margin: 0;
        line-height: 1.8;
    }

    @media (max-width: 1024px) {
        :root {
            --section-pad: 56px 0;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .article-list {
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }
        .data-cards,
        .topic-cards {
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .cat-header h1 {
            font-size: 28px;
        }
    }

    @media (max-width: 768px) {
        :root {
            --section-pad: 40px 0;
        }
        .top-header .header-inner {
            height: 60px;
            flex-wrap: wrap;
        }
        .nav-links {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            background: var(--bg-panel);
            flex-direction: column;
            align-items: stretch;
            padding: 16px 24px;
            gap: 4px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            z-index: 99;
        }
        .nav-links.open {
            display: flex;
        }
        .nav-link {
            padding: 12px 16px;
            font-size: 15px;
            width: 100%;
        }
        .mobile-toggle {
            display: flex;
        }
        .nav-actions {
            display: none;
        }
        .article-list {
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .data-cards,
        .topic-cards {
            grid-template-columns: 1fr;
            gap: 14px;
        }
        .cat-header h1 {
            font-size: 24px;
        }
        .cat-header .cat-desc {
            font-size: 14px;
        }
        .toolbar {
            flex-direction: column;
            align-items: stretch;
            gap: 12px;
            padding: 14px 16px;
        }
        .toolbar-filters {
            gap: 6px;
        }
        .toolbar-select {
            min-width: 100%;
        }
        .section-header h2 {
            font-size: 22px;
        }
        .section-header .section-desc {
            font-size: 14px;
        }
        .cta-bar {
            padding: 24px 20px;
            flex-direction: column;
            align-items: flex-start;
        }
        .cta-bar .cta-actions {
            width: 100%;
            flex-direction: column;
            align-items: stretch;
        }
        .cta-bar .cta-actions .btn {
            width: 100%;
        }
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
        }
    }

    @media (max-width: 520px) {
        .container {
            padding: 0 16px;
        }
        .logo {
            font-size: 17px;
        }
        .logo .logo-icon {
            width: 30px;
            height: 30px;
            font-size: 15px;
        }
        .breadcrumb {
            font-size: 12px;
            padding: 12px 0 0;
        }
        .breadcrumb a,
        .breadcrumb .current {
            padding: 3px 10px;
        }
        .article-card .card-body {
            padding: 16px 18px 18px;
        }
        .article-card .card-title {
            font-size: 17px;
        }
        .article-card .card-summary {
            font-size: 13px;
        }
        .data-card .data-num {
            font-size: 26px;
        }
        .btn {
            font-size: 14px;
            padding: 11px 20px;
        }
    }

/* roulang page: category5 */
:root {
            --bg-deep: #0A0E27;
            --bg-mid: #0B1026;
            --bg-panel: #0D1333;
            --blue-primary: #2E6BFF;
            --cyan-bright: #00D4FF;
            --purple-energy: #7C3AED;
            --text-primary: #F2F5FF;
            --text-secondary: #C9D1EA;
            --text-muted: #8A94B8;
            --text-faint: #5C6690;
            --glass-bg: rgba(255,255,255,0.07);
            --glass-bg-strong: rgba(255,255,255,0.10);
            --glass-border: rgba(255,255,255,0.14);
            --glass-border-strong: rgba(255,255,255,0.22);
            --card-radius: 18px;
            --btn-radius: 10px;
            --chip-radius: 999px;
            --input-radius: 10px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-card-hover: 0 16px 48px rgba(0,0,0,0.5), 0 0 24px rgba(0,212,255,0.12);
            --shadow-glow-blue: 0 0 18px rgba(46,107,255,0.4);
            --shadow-glow-cyan: 0 0 18px rgba(0,212,255,0.45);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --section-pad: 72px 0;
            --container-width: 1200px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            font-size: 16px;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }

        a {
            color: var(--cyan-bright);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #8AE6FF;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }

        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .section {
            padding: var(--section-pad);
            position: relative;
        }

        .section-alt {
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .section-tight {
            padding: 48px 0;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--cyan-bright);
            margin-bottom: 12px;
            background: rgba(0,212,255,0.08);
            padding: 6px 16px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(0,212,255,0.2);
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 1px;
            line-height: 1.3;
        }

        .section-header .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0;
            line-height: 1.8;
        }

        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .glass-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
            pointer-events: none;
        }

        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--btn-radius);
            transition: all var(--transition-smooth);
            letter-spacing: 0.5px;
            line-height: 1.4;
            text-decoration: none;
            white-space: nowrap;
            position: relative;
            outline: none;
        }

        .btn:focus {
            outline: 2px solid var(--cyan-bright);
            outline-offset: 3px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--blue-primary) 0%, var(--cyan-bright) 100%);
            color: #FFFFFF;
            box-shadow: var(--shadow-glow-cyan);
            border: none;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0,212,255,0.6), 0 8px 32px rgba(0,0,0,0.3);
            color: #FFFFFF;
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
            box-shadow: 0 0 12px rgba(0,212,255,0.4);
        }

        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(0,212,255,0.5);
            color: var(--cyan-bright);
        }

        .btn-ghost:hover {
            background: rgba(0,212,255,0.1);
            border-color: rgba(0,212,255,0.8);
            color: #8AE6FF;
            transform: translateY(-2px);
        }

        .btn-ghost:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            padding: 7px 18px;
            border-radius: var(--chip-radius);
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.16);
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            user-select: none;
        }

        .chip:hover,
        .chip.active {
            background: rgba(0,212,255,0.12);
            border-color: rgba(0,212,255,0.45);
            color: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0,212,255,0.2);
        }

        .chip .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan-bright);
            flex-shrink: 0;
        }

        .breadcrumb-bar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            padding: 16px 0;
            font-size: 14px;
            color: var(--text-muted);
        }

        .breadcrumb-bar a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--chip-radius);
            color: var(--text-secondary);
            transition: all var(--transition-fast);
        }

        .breadcrumb-bar a:hover {
            background: rgba(0,212,255,0.1);
            border-color: rgba(0,212,255,0.35);
            color: var(--cyan-bright);
        }

        .breadcrumb-bar .sep {
            color: var(--text-faint);
            font-size: 12px;
        }

        .breadcrumb-bar .current {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            background: rgba(0,212,255,0.1);
            border: 1px solid rgba(0,212,255,0.3);
            border-radius: var(--chip-radius);
            color: var(--cyan-bright);
            font-weight: 500;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10,14,39,0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255,255,255,0.06);
            padding: 14px 0;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .site-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--blue-primary), var(--cyan-bright));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            box-shadow: var(--shadow-glow-cyan);
            flex-shrink: 0;
        }

        .site-logo:hover {
            color: var(--text-primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: 8px;
            text-decoration: none;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.06);
        }

        .nav-link.active {
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.08);
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-primary), var(--cyan-bright));
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(0,212,255,0.5);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.12);
            color: var(--text-primary);
            align-items: center;
            justify-content: center;
            font-size: 18px;
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(0,212,255,0.1);
            border-color: rgba(0,212,255,0.3);
        }

        .notice-bar {
            background: rgba(46,107,255,0.08);
            border-bottom: 1px solid rgba(46,107,255,0.15);
            padding: 10px 0;
        }

        .notice-bar .container {
            display: flex;
            align-items: center;
            gap: 12px;
            overflow-x: auto;
            flex-wrap: nowrap;
            scrollbar-width: thin;
            scrollbar-color: rgba(0,212,255,0.3) transparent;
        }

        .notice-bar .container::-webkit-scrollbar {
            height: 4px;
        }

        .notice-bar .container::-webkit-scrollbar-thumb {
            background: rgba(0,212,255,0.3);
            border-radius: 4px;
        }

        .notice-bar .notice-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--cyan-bright);
            letter-spacing: 1px;
            text-transform: uppercase;
            flex-shrink: 0;
        }

        .notice-bar .notice-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            padding: 5px 14px;
            border-radius: var(--chip-radius);
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.12);
            color: var(--text-secondary);
            white-space: nowrap;
            cursor: pointer;
            transition: all var(--transition-fast);
            text-decoration: none;
        }

        .notice-bar .notice-chip:hover {
            background: rgba(0,212,255,0.1);
            border-color: rgba(0,212,255,0.35);
            color: var(--cyan-bright);
        }

        .notice-bar .notice-chip .dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--cyan-bright);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        .wiki-hero {
            padding: 60px 0 40px;
            background: linear-gradient(180deg, rgba(46,107,255,0.06) 0%, transparent 100%);
        }

        .wiki-hero .container {
            max-width: var(--container-width);
        }

        .wiki-hero-content {
            max-width: 780px;
        }

        .wiki-hero h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px;
            line-height: 1.25;
            letter-spacing: 0.5px;
        }

        .wiki-hero h1 .accent {
            background: linear-gradient(135deg, var(--cyan-bright), var(--blue-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .wiki-hero p {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 0 0 20px;
            max-width: 680px;
        }

        .wiki-hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .wiki-hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .wiki-hero-meta i {
            color: var(--cyan-bright);
        }

        .filter-bar {
            padding: 20px 0 32px;
        }

        .filter-bar .glass-card {
            padding: 18px 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
            justify-content: space-between;
        }

        .filter-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
        }

        .filter-sort select {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.16);
            border-radius: var(--input-radius);
            padding: 8px 14px;
            font-size: 14px;
            color: var(--text-secondary);
            cursor: pointer;
            outline: none;
            transition: all var(--transition-fast);
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238A94B8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            padding-right: 36px;
        }

        .filter-sort select:focus {
            border-color: rgba(0,212,255,0.5);
            box-shadow: 0 0 12px rgba(0,212,255,0.2);
        }

        .wiki-list {
            padding: 16px 0 64px;
        }

        .wiki-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }

        .wiki-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .wiki-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
            pointer-events: none;
            z-index: 1;
        }

        .wiki-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }

        .wiki-card-thumb {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            flex-shrink: 0;
        }

        .wiki-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }

        .wiki-card:hover .wiki-card-thumb img {
            transform: scale(1.05);
        }

        .wiki-card-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(10,14,39,0.7) 100%);
            pointer-events: none;
        }

        .wiki-card-category {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 500;
            padding: 5px 12px;
            border-radius: var(--chip-radius);
            background: rgba(10,14,39,0.7);
            border: 1px solid rgba(0,212,255,0.3);
            color: var(--cyan-bright);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .wiki-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .wiki-card-date {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .wiki-card-date i {
            color: var(--text-faint);
            font-size: 12px;
        }

        .wiki-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 10px;
            line-height: 1.4;
            letter-spacing: 0.3px;
        }

        .wiki-card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0 0 16px;
            flex: 1;
        }

        .wiki-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .wiki-card-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .wiki-card-tag i {
            color: var(--purple-energy);
            font-size: 11px;
        }

        .btn-read {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            background: rgba(0,212,255,0.06);
            border: 1px solid rgba(0,212,255,0.25);
            color: var(--cyan-bright);
            transition: all var(--transition-fast);
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-read:hover {
            background: rgba(0,212,255,0.14);
            border-color: rgba(0,212,255,0.5);
            box-shadow: 0 0 14px rgba(0,212,255,0.25);
            color: #8AE6FF;
        }

        .btn-read:focus {
            outline: 2px solid var(--cyan-bright);
            outline-offset: 2px;
        }

        .btn-read:active {
            transform: scale(0.97);
        }

        .stats-section {
            padding: 56px 0;
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            padding: 28px 24px;
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--cyan-bright), transparent);
            opacity: 0.5;
        }

        .stat-card:hover {
            transform: translateY(-3px);
            border-color: rgba(0,212,255,0.3);
            box-shadow: var(--shadow-card-hover);
        }

        .stat-number {
            font-size: 38px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--cyan-bright), var(--blue-primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 1px;
            margin-bottom: 6px;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
        }

        .topics-section {
            padding: var(--section-pad);
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(46,107,255,0.4);
        }

        .topic-card-thumb {
            aspect-ratio: 16/9;
            overflow: hidden;
            flex-shrink: 0;
        }

        .topic-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }

        .topic-card:hover .topic-card-thumb img {
            transform: scale(1.06);
        }

        .topic-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .topic-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .topic-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 14px;
            flex: 1;
        }

        .topic-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--cyan-bright);
            text-decoration: none;
            transition: all var(--transition-fast);
        }

        .topic-card-link:hover {
            gap: 10px;
            color: #8AE6FF;
        }

        .faq-section {
            padding: var(--section-pad);
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            overflow: hidden;
            transition: all var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(0,212,255,0.3);
        }

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-primary);
            list-style: none;
            user-select: none;
            transition: all var(--transition-fast);
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(0,212,255,0.1);
            border: 1px solid rgba(0,212,255,0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--cyan-bright);
            transition: all var(--transition-fast);
        }

        .faq-item[open] summary .faq-icon {
            background: rgba(0,212,255,0.2);
            border-color: rgba(0,212,255,0.5);
            transform: rotate(45deg);
        }

        .faq-item summary:hover .faq-icon {
            background: rgba(0,212,255,0.18);
            border-color: rgba(0,212,255,0.45);
        }

        .faq-answer {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .cta-section {
            padding: 56px 0 72px;
        }

        .cta-bar {
            background: var(--glass-bg-strong);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border-strong);
            border-radius: 20px;
            padding: 36px 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
            justify-content: space-between;
            box-shadow: var(--shadow-card);
            position: relative;
            overflow: hidden;
        }

        .cta-bar::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0,212,255,0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-bar-content {
            flex: 1;
            min-width: 260px;
        }

        .cta-bar-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.35;
        }

        .cta-bar-desc {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        .cta-bar-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            flex-shrink: 0;
        }

        .site-footer {
            background: #080B20;
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--cyan-bright);
        }

        .footer-contact {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0;
        }

        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 16px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255,255,255,0.05);
            border: 1px solid rgba(255,255,255,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 15px;
            transition: all var(--transition-fast);
        }

        .footer-social a:hover {
            background: rgba(0,212,255,0.1);
            border-color: rgba(0,212,255,0.3);
            color: var(--cyan-bright);
            transform: translateY(-2px);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid rgba(255,255,255,0.05);
            font-size: 13px;
            color: var(--text-faint);
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--cyan-bright);
        }

        .footer-links span {
            color: var(--text-faint);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }

            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 14px;
            }

            .wiki-card-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .wiki-hero h1 {
                font-size: 30px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10,14,39,0.97);
                border-bottom: 1px solid rgba(255,255,255,0.08);
                padding: 16px 24px 20px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                z-index: 99;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-link {
                padding: 12px 16px;
                border-radius: 8px;
                font-size: 16px;
            }

            .nav-link.active::after {
                display: none;
            }

            .nav-link.active {
                background: rgba(0,212,255,0.1);
            }

            .site-header .container {
                flex-wrap: nowrap;
            }

            .wiki-hero h1 {
                font-size: 26px;
            }

            .wiki-hero p {
                font-size: 15px;
            }

            .wiki-card-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .topic-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .filter-bar .glass-card {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-bar {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .section {
                padding: 48px 0;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .stat-number {
                font-size: 28px;
            }

            .wiki-hero {
                padding: 40px 0 24px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .wiki-hero h1 {
                font-size: 22px;
            }

            .wiki-card-body {
                padding: 16px 16px 18px;
            }

            .wiki-card-title {
                font-size: 16px;
            }

            .topic-card-body {
                padding: 16px 16px 18px;
            }

            .btn {
                padding: 11px 20px;
                font-size: 14px;
            }

            .btn-sm {
                padding: 8px 14px;
                font-size: 13px;
            }

            .cta-bar-title {
                font-size: 18px;
            }

            .breadcrumb-bar {
                font-size: 12px;
            }

            .breadcrumb-bar a,
            .breadcrumb-bar .current {
                padding: 4px 10px;
                font-size: 12px;
            }

            .notice-bar .container {
                gap: 8px;
            }
        }

/* roulang page: category7 */
:root {
            --bg-deep: #0A0E27;
            --bg-mid: #0B1026;
            --bg-panel: #0D1333;
            --blue-primary: #2E6BFF;
            --cyan-bright: #00D4FF;
            --purple-energy: #7C3AED;
            --text-primary: #F2F5FF;
            --text-secondary: #C9D1EA;
            --text-muted: #8A94B8;
            --text-faint: #5C6690;
            --glass-bg: rgba(255,255,255,0.07);
            --glass-bg-strong: rgba(255,255,255,0.10);
            --glass-border: rgba(255,255,255,0.14);
            --glass-border-strong: rgba(255,255,255,0.22);
            --card-radius: 18px;
            --btn-radius: 10px;
            --chip-radius: 999px;
            --input-radius: 10px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-card-hover: 0 16px 48px rgba(0,0,0,0.5), 0 0 24px rgba(0,212,255,0.12);
            --shadow-glow-blue: 0 0 18px rgba(46,107,255,0.4);
            --shadow-glow-cyan: 0 0 18px rgba(0,212,255,0.45);
            --transition-fast: 0.2s ease;
            --transition-smooth: 0.3s cubic-bezier(0.4,0,0.2,1);
            --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
            --section-pad: 72px 0;
            --container-width: 1200px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            font-size: 16px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        a {
            color: var(--cyan-bright);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #8AE6FF;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            padding: 0;
        }
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        .section {
            padding: var(--section-pad);
            position: relative;
        }
        .section-alt {
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.05);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .section-tight {
            padding: 48px 0;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--cyan-bright);
            margin-bottom: 12px;
            background: rgba(0,212,255,0.08);
            padding: 6px 16px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(0,212,255,0.2);
        }
        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 1px;
            line-height: 1.3;
        }
        .section-header .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0;
            line-height: 1.8;
        }
        .glass-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .glass-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
            pointer-events: none;
        }
        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            border-radius: var(--btn-radius);
            transition: all var(--transition-smooth);
            letter-spacing: 0.5px;
            line-height: 1.4;
            text-decoration: none;
            white-space: nowrap;
            position: relative;
            outline: none;
        }
        .btn:focus {
            outline: 2px solid var(--cyan-bright);
            outline-offset: 3px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--blue-primary) 0%, var(--cyan-bright) 100%);
            color: #FFFFFF;
            box-shadow: var(--shadow-glow-cyan);
            border: none;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 30px rgba(0,212,255,0.6), 0 8px 32px rgba(0,0,0,0.3);
            color: #FFFFFF;
        }
        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(0,212,255,0.4);
            color: var(--cyan-bright);
        }
        .btn-ghost:hover {
            background: rgba(0,212,255,0.08);
            border-color: rgba(0,212,255,0.7);
            color: #8AE6FF;
            transform: translateY(-2px);
        }
        .btn-ghost:active {
            transform: translateY(0) scale(0.98);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 13px;
            border-radius: 8px;
        }
        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--cyan-bright);
            border: 1px solid rgba(0,212,255,0.35);
            background: rgba(0,212,255,0.06);
            padding: 8px 18px;
            border-radius: 8px;
            transition: all var(--transition-smooth);
        }
        .btn-read-more:hover {
            background: rgba(0,212,255,0.15);
            border-color: rgba(0,212,255,0.65);
            color: #FFFFFF;
            transform: translateY(-1px);
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--chip-radius);
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--glass-border);
            background: var(--glass-bg);
            color: var(--text-secondary);
            transition: all var(--transition-smooth);
            white-space: nowrap;
        }
        .chip:hover,
        .chip.active {
            border-color: rgba(0,212,255,0.5);
            background: rgba(0,212,255,0.08);
            color: var(--cyan-bright);
            box-shadow: 0 0 12px rgba(0,212,255,0.2);
        }
        .chip .chip-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan-bright);
            box-shadow: 0 0 6px rgba(0,212,255,0.6);
        }
        .header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10,14,39,0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
            box-shadow: 0 4px 24px rgba(0,0,0,0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            gap: 24px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-logo .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--blue-primary) 0%, var(--cyan-bright) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #FFFFFF;
            box-shadow: 0 0 14px rgba(0,212,255,0.4);
        }
        .brand-logo .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 1px;
            line-height: 1.2;
        }
        .brand-logo .brand-sub {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 2px;
            text-transform: uppercase;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 14px;
            border-radius: 8px;
            transition: all var(--transition-fast);
            position: relative;
            letter-spacing: 0.5px;
            text-decoration: none;
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255,255,255,0.06);
        }
        .nav-link.active {
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.08);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: linear-gradient(90deg, var(--blue-primary), var(--cyan-bright));
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0,212,255,0.5);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            color: var(--text-primary);
            font-size: 22px;
            padding: 6px 8px;
            border-radius: 8px;
            transition: all var(--transition-fast);
        }
        .nav-toggle:hover {
            background: rgba(255,255,255,0.08);
        }
        @media (max-width: 1024px) {
            .nav-links {
                gap: 2px;
            }
            .nav-link {
                font-size: 13px;
                padding: 8px 10px;
            }
            .header-nav {
                gap: 16px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                padding: 10px 0;
            }
            .nav-toggle {
                display: block;
            }
            .header-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
                padding: 12px 0 6px;
                border-top: 1px solid rgba(255,255,255,0.08);
            }
            .header-nav.open {
                display: flex;
            }
            .nav-links {
                flex-direction: column;
                width: 100%;
                gap: 4px;
            }
            .nav-link {
                display: block;
                padding: 10px 12px;
                font-size: 14px;
                width: 100%;
            }
            .nav-link.active::after {
                display: none;
            }
            .header-actions {
                margin-left: auto;
            }
        }
        .crumb-bar {
            padding: 16px 0;
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .crumb-link {
            font-size: 13px;
            color: var(--text-muted);
            text-decoration: none;
            padding: 6px 14px;
            border-radius: var(--chip-radius);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            transition: all var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .crumb-link:hover {
            color: var(--cyan-bright);
            border-color: rgba(0,212,255,0.35);
        }
        .crumb-sep {
            color: var(--text-faint);
            font-size: 14px;
        }
        .crumb-current {
            font-size: 13px;
            color: var(--cyan-bright);
            padding: 6px 14px;
            border-radius: var(--chip-radius);
            background: rgba(0,212,255,0.08);
            border: 1px solid rgba(0,212,255,0.25);
            font-weight: 500;
        }
        .page-heading {
            padding: 32px 0 8px;
        }
        .page-heading h1 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
            letter-spacing: 1px;
            line-height: 1.25;
        }
        .page-heading .h1-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0;
            line-height: 1.8;
        }
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            padding: 14px 18px;
            margin: 20px 0 28px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }
        .filter-bar .filter-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
            margin-right: 4px;
            white-space: nowrap;
        }
        .filter-chips {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            flex: 1;
        }
        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }
        .filter-sort select {
            background: var(--bg-panel);
            border: 1px solid var(--glass-border);
            color: var(--text-secondary);
            font-size: 13px;
            padding: 8px 32px 8px 14px;
            border-radius: 8px;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A94B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            cursor: pointer;
            transition: all var(--transition-fast);
            outline: none;
        }
        .filter-sort select:focus {
            border-color: var(--cyan-bright);
            box-shadow: 0 0 0 3px rgba(0,212,255,0.15);
        }
        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .article-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }
        .article-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: var(--card-radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all var(--transition-smooth);
            position: relative;
        }
        .article-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
            pointer-events: none;
            z-index: 1;
        }
        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(0,212,255,0.35);
        }
        .article-card .card-media {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--bg-panel);
            border-radius: 0;
        }
        .article-card .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }
        .article-card:hover .card-media img {
            transform: scale(1.05);
        }
        .article-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .article-card .card-date {
            font-size: 12px;
            color: var(--text-faint);
            letter-spacing: 0.5px;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 10px;
            line-height: 1.4;
            letter-spacing: 0.5px;
        }
        .article-card .card-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0 0 16px;
            flex: 1;
        }
        .article-card .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .article-card .card-tag {
            font-size: 12px;
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.08);
            padding: 4px 12px;
            border-radius: var(--chip-radius);
            border: 1px solid rgba(0,212,255,0.2);
            white-space: nowrap;
        }
        .stats-snapshot {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .stats-snapshot {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }
        .stat-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 16px;
            padding: 22px 20px;
            text-align: center;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
        }
        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
            pointer-events: none;
        }
        .stat-card:hover {
            transform: translateY(-3px);
            border-color: rgba(0,212,255,0.35);
            box-shadow: var(--shadow-card-hover);
        }
        .stat-card .stat-icon {
            font-size: 26px;
            color: var(--cyan-bright);
            margin-bottom: 10px;
        }
        .stat-card .stat-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.2;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, var(--cyan-bright) 0%, var(--blue-primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-card .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
            letter-spacing: 0.5px;
        }
        .stat-card .stat-note {
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 4px;
        }
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        @media (max-width: 768px) {
            .topic-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }
        .topic-card {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--glass-border);
            border-radius: 16px;
            padding: 24px 22px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            transition: all var(--transition-smooth);
            position: relative;
            overflow: hidden;
            text-decoration: none;
        }
        .topic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.25) 100%);
            pointer-events: none;
        }
        .topic-card:hover {
            transform: translateY(-3px);
            border-color: rgba(0,212,255,0.35);
            box-shadow: var(--shadow-card-hover);
        }
        .topic-card .topic-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(46,107,255,0.25), rgba(0,212,255,0.2));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--cyan-bright);
            flex-shrink: 0;
        }
        .topic-card .topic-content h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.35;
            letter-spacing: 0.5px;
        }
        .topic-card .topic-content p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.75;
        }
        .faq-section {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--glass-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--glass-border);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-smooth);
        }
        .faq-item:hover {
            border-color: rgba(0,212,255,0.3);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            user-select: none;
            transition: all var(--transition-fast);
            letter-spacing: 0.5px;
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--cyan-bright);
            flex-shrink: 0;
            transition: transform var(--transition-smooth);
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-smooth), padding var(--transition-smooth);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.8;
        }
        .cta-banner {
            background: var(--glass-bg);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border: 1px solid rgba(0,212,255,0.25);
            border-radius: 20px;
            padding: 36px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
            box-shadow: 0 8px 40px rgba(0,0,0,0.4), 0 0 32px rgba(0,212,255,0.1);
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, rgba(0,212,255,0.5) 0%, rgba(255,255,255,0.1) 50%, rgba(0,212,255,0.5) 100%);
        }
        .cta-banner .cta-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            letter-spacing: 0.5px;
        }
        .cta-banner .cta-text p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }
        .cta-banner .cta-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }
        @media (max-width: 768px) {
            .cta-banner {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }
            .cta-banner .cta-actions {
                justify-content: center;
                width: 100%;
            }
        }
        .site-footer {
            background: var(--bg-mid);
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 56px 0 0;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 36px;
            padding-bottom: 36px;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 14px;
            letter-spacing: 1px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: linear-gradient(90deg, var(--cyan-bright), var(--blue-primary));
            border-radius: 2px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--cyan-bright);
            padding-left: 4px;
        }
        .footer-contact {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin: 0 0 14px;
        }
        .footer-social {
            display: flex;
            gap: 10px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            font-size: 16px;
            transition: all var(--transition-fast);
        }
        .footer-social a:hover {
            border-color: rgba(0,212,255,0.45);
            color: var(--cyan-bright);
            background: rgba(0,212,255,0.08);
            transform: translateY(-2px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.06);
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom span {
            font-size: 13px;
            color: var(--text-faint);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--cyan-bright);
        }
        .footer-links span {
            font-size: 12px;
            color: var(--text-faint);
        }
        @media (max-width: 768px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        .section-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
            margin: 0;
        }
        .back-to-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--glass-bg-strong);
            border: 1px solid var(--glass-border);
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
            transition: all var(--transition-smooth);
            z-index: 90;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .back-to-top:hover {
            border-color: rgba(0,212,255,0.5);
            color: var(--cyan-bright);
            transform: translateY(-3px);
            box-shadow: 0 0 16px rgba(0,212,255,0.25);
        }
        .list-break {
            margin-top: 8px;
        }
        .view-more-wrap {
            display: flex;
            justify-content: center;
            margin-top: 8px;
        }