/* roulang page: index */
:root {
            --bg-deep: #070e1a;
            --bg-dark: #0a1628;
            --bg-panel: #0f2540;
            --cyan: #00e5ff;
            --cyan-soft: #00b4d8;
            --violet: #7c3aed;
            --violet-soft: #a78bfa;
            --text-main: rgba(233, 238, 245, 0.95);
            --text-body: rgba(233, 238, 245, 0.85);
            --text-muted: rgba(200, 210, 225, 0.62);
            --text-dark: #06121f;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-bg-hover: rgba(255, 255, 255, 0.1);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-border-hover: rgba(0, 229, 255, 0.55);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-cyan: 0 0 18px rgba(0, 229, 255, 0.35);
            --shadow-cyan-lg: 0 0 32px rgba(0, 229, 255, 0.45);
            --shadow-dark: 0 18px 40px rgba(0, 0, 0, 0.45);
            --space-section: 88px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Roboto Mono', 'Consolas', monospace;
            --container-max: 1200px;
            --header-height: 72px;
            --transition: 0.25s ease;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--cyan);
        }

        button, input, select, textarea {
            font-family: var(--font-sans);
            font-size: 16px;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul, ol {
            list-style: none;
        }

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

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(7, 14, 26, 0.9);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            min-height: var(--header-height);
            padding: 12px 0;
        }

        .logo {
            flex-shrink: 0;
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 1px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--cyan), var(--violet));
            color: var(--text-dark);
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

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

        .main-nav a {
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            white-space: nowrap;
            position: relative;
            transition: all var(--transition);
        }

        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        .main-nav a.active {
            color: var(--cyan);
            background: rgba(0, 229, 255, 0.08);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--cyan);
            color: var(--text-dark);
            box-shadow: var(--shadow-cyan);
        }

        .btn-primary:hover {
            background: #33ebff;
            box-shadow: var(--shadow-cyan-lg);
            transform: translateY(-1px);
            color: var(--text-dark);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.25);
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #fff;
        }

        .btn-outline:hover {
            border-color: var(--cyan);
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
            color: var(--cyan);
        }

        .btn-sm {
            padding: 7px 14px;
            font-size: 0.85rem;
            border-radius: 8px;
        }

        .btn-lg {
            padding: 14px 28px;
            font-size: 1rem;
            border-radius: 12px;
        }

        /* Announcement chip bar */
        .announcement-bar {
            background: rgba(0, 229, 255, 0.05);
            border-top: 1px solid rgba(0, 229, 255, 0.15);
            padding: 6px 0;
        }

        .announcement-inner {
            display: flex;
            align-items: center;
            gap: 12px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .announcement-inner::-webkit-scrollbar {
            display: none;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.82rem;
            font-weight: 500;
            white-space: nowrap;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.35);
            color: var(--cyan);
            transition: all var(--transition);
        }

        .chip:hover {
            background: rgba(0, 229, 255, 0.18);
            color: #fff;
            border-color: var(--cyan);
        }

        .announcement-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(0.8); }
        }

        /* Mobile menu toggle */
        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            cursor: pointer;
            transition: all var(--transition);
        }

        .nav-toggle span {
            display: block;
            width: 100%;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .nav-toggle:hover {
            border-color: var(--cyan);
        }

        /* Hero */
        .hero {
            position: relative;
            min-height: calc(100vh - var(--header-height) - 40px);
            display: flex;
            align-items: center;
            padding: 80px 0 80px;
            background: var(--bg-dark);
            overflow: hidden;
            isolation: isolate;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: -1;
            background: linear-gradient(135deg, #050a14 0%, #0a1628 45%, #0f2540 100%);
        }

        .hero-bg::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/449c2464b225c0ce.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.28;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 30%, rgba(0, 229, 255, 0.18) 0%, transparent 55%),
                        radial-gradient(ellipse at 20% 80%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
                        linear-gradient(180deg, rgba(7, 14, 26, 0.15) 0%, rgba(7, 14, 26, 0.92) 100%);
        }

        .hero-grid-lines {
            position: absolute;
            inset: 0;
            z-index: -1;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                              linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 60px 60px;
            mask-image: radial-gradient(ellipse at center, black 50%, transparent 100%);
            -webkit-mask-image: radial-gradient(ellipse at center, black 50%, transparent 100%);
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            width: 100%;
        }

        .hero-content {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid rgba(0, 229, 255, 0.3);
            color: var(--cyan);
            font-size: 0.85rem;
            font-weight: 500;
            width: fit-content;
        }

        .hero-eyebrow::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--cyan);
            box-shadow: 0 0 10px var(--cyan);
        }

        .hero h1 {
            font-size: clamp(2rem, 4vw, 3.5rem);
            font-weight: 700;
            line-height: 1.2;
            color: #fff;
            letter-spacing: -0.5px;
            margin: 0;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--cyan), var(--violet-soft));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-subtitle {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-body);
            max-width: 560px;
            margin: 0;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .hero-play-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.2);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: all var(--transition);
            cursor: pointer;
            flex-shrink: 0;
            position: relative;
        }

        .hero-play-btn::before {
            content: '';
            position: absolute;
            width: 0;
            height: 0;
            border-left: 14px solid #fff;
            border-top: 8px solid transparent;
            border-bottom: 8px solid transparent;
            margin-left: 4px;
            transition: all var(--transition);
        }

        .hero-play-btn:hover {
            background: rgba(0, 229, 255, 0.15);
            border-color: var(--cyan);
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.3);
        }

        .hero-play-btn:hover::before {
            border-left-color: var(--cyan);
        }

        .play-btn-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            padding-top: 10px;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat-value {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--cyan);
            font-family: var(--font-mono);
            line-height: 1.2;
        }

        .hero-stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 400px;
        }

        .hero-visual-card {
            width: 100%;
            max-width: 520px;
            aspect-ratio: 16/10;
            border-radius: var(--radius-xl);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: var(--shadow-dark);
            overflow: hidden;
            position: relative;
            transition: all var(--transition);
        }

        .hero-visual-card:hover {
            border-color: var(--glass-border-hover);
            box-shadow: 0 0 45px rgba(0, 229, 255, 0.2), var(--shadow-dark);
        }

        .hero-visual-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
        }

        .hero-visual-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(7, 14, 26, 0.15) 0%, rgba(7, 14, 26, 0.75) 100%);
            display: flex;
            align-items: flex-end;
            padding: 20px;
        }

        .hero-visual-info {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #fff;
            font-weight: 500;
            font-size: 0.9rem;
        }

        .hero-visual-badge {
            padding: 4px 12px;
            border-radius: 6px;
            background: rgba(0, 229, 255, 0.2);
            border: 1px solid rgba(0, 229, 255, 0.4);
            color: var(--cyan);
            font-size: 0.78rem;
            font-weight: 600;
        }

        /* Sections common */
        .section {
            padding: var(--space-section) 0;
            position: relative;
        }

        .section-alt {
            background: rgba(10, 22, 40, 0.5);
        }

        .section-glow {
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 200px;
            background: radial-gradient(ellipse at center, rgba(0, 229, 255, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }

        .section-header {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-bottom: 40px;
            position: relative;
        }

        .section-header.center {
            align-items: center;
            text-align: center;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--cyan);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .section-tag::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--cyan);
            box-shadow: 0 0 8px var(--cyan);
        }

        .section-header.center .section-tag::after {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--cyan);
            box-shadow: 0 0 8px var(--cyan);
        }

        .section-title {
            font-size: clamp(1.5rem, 2.6vw, 2.2rem);
            font-weight: 650;
            line-height: 1.25;
            color: #fff;
            margin: 0;
            letter-spacing: -0.3px;
        }

        .section-desc {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text-body);
            max-width: 680px;
            margin: 0;
        }

        .section-header.center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }

        /* Countdown / focus strip */
        .countdown-strip {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }

        .countdown-info {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
            min-width: 200px;
        }

        .countdown-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .countdown-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: #fff;
        }

        .countdown-timer {
            display: flex;
            gap: 12px;
            align-items: center;
        }

        .timer-block {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            min-width: 52px;
            padding: 8px 12px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .timer-value {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--cyan);
            font-family: var(--font-mono);
            line-height: 1.2;
        }

        .timer-unit {
            font-size: 0.75rem;
            color: var(--text-muted);
        }

        /* Metrics grid */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .metric-card {
            padding: 24px 20px;
            border-radius: var(--radius-md);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .metric-card::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.12) 0%, transparent 70%);
            pointer-events: none;
            transition: all var(--transition);
        }

        .metric-card:hover {
            border-color: var(--glass-border-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
        }

        .metric-card:hover::after {
            transform: scale(1.5);
        }

        .metric-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--cyan);
            font-family: var(--font-mono);
            line-height: 1.2;
            display: flex;
            align-items: baseline;
            gap: 4px;
        }

        .metric-unit {
            font-size: 1rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .metric-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* Service matrix */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .service-card {
            padding: 24px 20px;
            border-radius: var(--radius-md);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .service-card:hover {
            border-color: var(--glass-border-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(0, 229, 255, 0.1);
            border: 1px solid rgba(0, 229, 255, 0.25);
            color: var(--cyan);
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 16px;
            transition: all var(--transition);
        }

        .service-card:hover .service-icon {
            background: rgba(0, 229, 255, 0.18);
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.25);
        }

        .service-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .service-card p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--text-muted);
        }

        /* Comparison */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 300px 1fr 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .comparison-label-col {
            display: flex;
            flex-direction: column;
            gap: 20px;
            justify-content: center;
        }

        .comparison-dimension {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-body);
            padding: 18px 16px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            min-height: 60px;
        }

        .comparison-col {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .comparison-col-header {
            text-align: center;
            padding: 16px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid var(--glass-border);
            min-height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .comparison-col-header.traditional {
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-muted);
        }

        .comparison-col-header.yidianjing {
            background: rgba(0, 229, 255, 0.1);
            border-color: rgba(0, 229, 255, 0.3);
            color: var(--cyan);
        }

        .comparison-item {
            padding: 18px 16px;
            border-radius: var(--radius-sm);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            min-height: 60px;
            display: flex;
            align-items: center;
            font-size: 0.9rem;
            line-height: 1.6;
            color: var(--text-body);
        }

        .comparison-item.traditional-item {
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.03);
        }

        .comparison-item.yidianjing-item {
            border-color: rgba(0, 229, 255, 0.25);
            background: rgba(0, 229, 255, 0.06);
            color: #fff;
        }

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 28px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--cyan), rgba(0, 229, 255, 0.1));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding: 20px 0 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -24px;
            top: 26px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--bg-dark);
            border: 2px solid var(--cyan);
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
        }

        .timeline-year {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--violet-soft);
            letter-spacing: 1px;
        }

        .timeline-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
        }

        .timeline-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Brand intro */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro-visual {
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 4/3;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            position: relative;
        }

        .brand-intro-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.85;
        }

        .brand-intro-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.08) 0%, transparent 50%, rgba(124, 58, 237, 0.08) 100%);
        }

        .brand-intro-content {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .brand-intro-content .section-title {
            font-size: 1.8rem;
        }

        .brand-intro-content p {
            font-size: 0.98rem;
            line-height: 1.8;
            color: var(--text-body);
        }

        .brand-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 8px;
        }

        .brand-tag {
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-muted);
            transition: all var(--transition);
        }

        .brand-tag:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }

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

        .topic-card {
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all var(--transition);
            cursor: pointer;
        }

        .topic-card:hover {
            border-color: var(--glass-border-hover);
            transform: translateY(-4px);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
        }

        .topic-cover {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

        .topic-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .topic-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(7, 14, 26, 0.8) 100%);
        }

        .topic-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .topic-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--cyan);
            letter-spacing: 0.5px;
        }

        .topic-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
        }

        .topic-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Teams / players */
        .teams-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .team-card {
            padding: 20px;
            border-radius: var(--radius-md);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all var(--transition);
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }

        .team-card:hover {
            border-color: var(--glass-border-hover);
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
        }

        .team-avatar {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.2), rgba(124, 58, 237, 0.2));
            border: 2px solid rgba(0, 229, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--cyan);
            margin-bottom: 8px;
            transition: all var(--transition);
        }

        .team-card:hover .team-avatar {
            box-shadow: 0 0 22px rgba(0, 229, 255, 0.3);
            border-color: var(--cyan);
        }

        .team-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
        }

        .team-card .team-role {
            font-size: 0.78rem;
            color: var(--violet-soft);
            font-weight: 500;
        }

        .team-card .team-stat {
            font-size: 0.82rem;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        /* News list */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 16px;
            padding: 18px 8px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: all var(--transition);
            align-items: center;
        }

        .news-item:hover {
            padding-left: 16px;
            border-bottom-color: rgba(0, 229, 255, 0.3);
        }

        .news-item:hover .news-title {
            color: var(--cyan);
        }

        .news-main {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .news-meta {
            display: flex;
            gap: 12px;
            align-items: center;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .news-meta .tag {
            padding: 2px 10px;
            border-radius: 4px;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.2);
            color: var(--cyan);
            font-size: 0.75rem;
            font-weight: 500;
        }

        .news-title {
            font-size: 1rem;
            font-weight: 500;
            color: #fff;
            line-height: 1.4;
            transition: color var(--transition);
        }

        .news-date {
            font-size: 0.85rem;
            color: var(--text-muted);
            white-space: nowrap;
            font-family: var(--font-mono);
        }

        /* Data insight */
        .insight-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .insight-card {
            padding: 24px;
            border-radius: var(--radius-md);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: all var(--transition);
        }

        .insight-card:hover {
            border-color: var(--glass-border-hover);
            transform: translateY(-2px);
        }

        .insight-card .insight-value {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--cyan);
            font-family: var(--font-mono);
            line-height: 1.2;
        }

        .insight-card .insight-label {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .insight-card .insight-trend {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #4ade80;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(74, 222, 128, 0.1);
            border: 1px solid rgba(74, 222, 128, 0.25);
            width: fit-content;
        }

        /* Guarantee */
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .guarantee-item {
            padding: 22px 18px;
            border-radius: var(--radius-md);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: all var(--transition);
            text-align: center;
        }

        .guarantee-item:hover {
            border-color: var(--glass-border-hover);
            transform: translateY(-3px);
        }

        .guarantee-icon {
            font-size: 1.8rem;
            color: var(--cyan);
            margin-bottom: 4px;
        }

        .guarantee-item h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
        }

        .guarantee-item p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Quick answers */
        .quick-answers {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .quick-answer-item {
            padding: 20px;
            border-radius: var(--radius-md);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            display: flex;
            flex-direction: column;
            gap: 8px;
            transition: all var(--transition);
        }

        .quick-answer-item:hover {
            border-color: var(--glass-border-hover);
        }

        .quick-answer-item .qa-badge {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--violet-soft);
            letter-spacing: 0.5px;
        }

        .quick-answer-item h3 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
        }

        .quick-answer-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-container {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            border-radius: var(--radius-md);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.2);
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 500;
            color: #fff;
            transition: all var(--transition);
        }

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

        .faq-item summary::after {
            content: '+';
            font-size: 1.4rem;
            font-weight: 400;
            color: var(--cyan);
            transition: transform 0.25s ease;
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            transform: rotate(45deg);
        }

        .faq-item summary:hover {
            color: var(--cyan);
        }

        .faq-answer {
            padding: 0 22px 20px;
            font-size: 0.92rem;
            line-height: 1.7;
            color: var(--text-muted);
        }

        /* Form */
        .form-card {
            max-width: 640px;
            margin: 0 auto;
            padding: 36px 40px;
            border-radius: var(--radius-lg);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: var(--shadow-dark);
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
            margin-bottom: 16px;
        }

        .form-group label {
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-body);
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            padding: 12px 16px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: #fff;
            transition: all var(--transition);
            font-size: 0.95rem;
            width: 100%;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: rgba(200, 210, 225, 0.4);
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
            outline: none;
        }

        .form-group select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='none' stroke='%2300e5ff' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
        }

        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }

        .form-submit {
            width: 100%;
            justify-content: center;
            padding: 14px;
            font-size: 1rem;
            font-weight: 600;
        }

        .form-note {
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 12px;
        }

        /* Footer */
        .site-footer {
            background: rgba(7, 14, 26, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 56px 0 24px;
        }

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

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-section h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: all var(--transition);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links a:hover {
            color: var(--cyan);
            transform: translateX(4px);
        }

        .footer-links a::before {
            content: '›';
            color: var(--cyan);
            font-weight: 700;
        }

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

        .copyright {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        .footer-legal {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .footer-legal a {
            color: var(--text-muted);
            font-size: 0.78rem;
        }

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

        /* Back to top */
        .back-to-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 50;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0, 229, 255, 0.15);
            border: 1px solid rgba(0, 229, 255, 0.3);
            color: var(--cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: all var(--transition);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            opacity: 0;
            pointer-events: none;
        }

        .back-to-top.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .back-to-top:hover {
            background: rgba(0, 229, 255, 0.25);
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .services-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .comparison-wrapper {
                grid-template-columns: 200px 1fr 1fr;
                gap: 12px;
            }

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

            .teams-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .guarantee-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .quick-answers {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .hero-inner {
                gap: 32px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta .btn-outline {
                display: none;
            }

            .hero {
                padding: 60px 0 60px;
                min-height: auto;
            }

            .hero-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero-visual {
                min-height: 240px;
            }

            .hero-visual-card {
                max-width: 100%;
                aspect-ratio: 16/9;
            }

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

            .comparison-label-col {
                display: none;
            }

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

            .insight-grid {
                grid-template-columns: 1fr;
            }

            .quick-answers {
                grid-template-columns: 1fr;
            }

            .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            :root {
                --space-section: 56px;
            }

            .countdown-strip {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
            }
        }

        @media (max-width: 520px) {
            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .metric-card {
                padding: 16px 14px;
            }

            .metric-value {
                font-size: 1.5rem;
            }

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

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

            .teams-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .team-card {
                padding: 14px;
            }

            .team-avatar {
                width: 56px;
                height: 56px;
                font-size: 1.2rem;
            }

            .guarantee-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .form-card {
                padding: 24px 18px;
            }

            .hero-stats {
                gap: 20px;
            }

            .hero-stat-value {
                font-size: 1.3rem;
            }

            .section-title {
                font-size: 1.4rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-deep: #070e1a;
            --bg-dark: #0a1628;
            --bg-panel: #0f2540;
            --cyan: #00e5ff;
            --cyan-soft: #00b4d8;
            --violet: #7c3aed;
            --violet-soft: #a78bfa;
            --text-main: rgba(233, 238, 245, 0.95);
            --text-body: rgba(233, 238, 245, 0.85);
            --text-muted: rgba(200, 210, 225, 0.62);
            --text-dark: #06121f;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-bg-hover: rgba(255, 255, 255, 0.1);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-border-hover: rgba(0, 229, 255, 0.55);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-cyan: 0 0 18px rgba(0, 229, 255, 0.35);
            --shadow-cyan-lg: 0 0 32px rgba(0, 229, 255, 0.45);
            --shadow-dark: 0 18px 40px rgba(0, 0, 0, 0.45);
            --space-section: 72px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Roboto Mono', 'Consolas', monospace;
            --container-max: 1200px;
            --header-height: 72px;
            --transition: 0.25s ease;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            margin: 0;
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--cyan);
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 16px;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(7, 14, 26, 0.9);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            min-height: var(--header-height);
            padding: 12px 0;
        }
        .logo {
            flex-shrink: 0;
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 1px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--cyan), var(--violet));
            color: var(--text-dark);
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .main-nav a {
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            white-space: nowrap;
            position: relative;
            transition: all var(--transition);
        }
        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        .main-nav a.active {
            color: var(--cyan);
            background: rgba(0, 229, 255, 0.08);
        }
        .nav-cta {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--cyan);
            color: var(--text-dark);
            box-shadow: var(--shadow-cyan);
        }
        .btn-primary:hover {
            background: #33ebff;
            box-shadow: var(--shadow-cyan-lg);
            transform: translateY(-1px);
            color: var(--text-dark);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.25);
        }
        .btn-outline {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #fff;
        }
        .btn-outline:hover {
            border-color: var(--cyan);
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.25);
            color: var(--cyan);
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
            border-radius: 8px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: #fff;
            border-radius: 1px;
            transition: all 0.3s;
        }
        .announcement-bar {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            background: rgba(10, 22, 40, 0.5);
            padding: 6px 0;
        }
        .announcement-inner {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.35);
            color: var(--cyan);
            font-size: 0.82rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .chip:hover {
            background: rgba(0, 229, 255, 0.16);
            border-color: var(--cyan);
            color: #fff;
        }
        .announcement-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan);
            box-shadow: 0 0 8px var(--cyan);
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.35;
            }
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a:hover {
            color: var(--cyan);
        }
        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.25);
        }
        .breadcrumb .current {
            color: var(--text-body);
        }
        .page-header {
            padding: 40px 0 28px;
            background: linear-gradient(180deg, rgba(0, 229, 255, 0.04) 0%, transparent 60%);
        }
        .page-header h1 {
            font-size: clamp(1.9rem, 3vw, 2.5rem);
            font-weight: 700;
            color: #fff;
            margin: 12px 0 8px;
            line-height: 1.25;
            letter-spacing: 0.5px;
        }
        .page-header .intro {
            font-size: 1.02rem;
            color: var(--text-body);
            max-width: 680px;
            margin: 0;
        }
        .category-main {
            padding: 32px 0 80px;
        }
        .filter-bar {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            margin-bottom: 36px;
        }
        .filter-bar .filter-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .filter-group {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-pill {
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-body);
            font-size: 0.85rem;
            transition: all var(--transition);
            cursor: pointer;
        }
        .filter-pill:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }
        .filter-pill.active {
            background: rgba(0, 229, 255, 0.1);
            border-color: var(--cyan);
            color: var(--cyan);
        }
        .filter-search {
            margin-left: auto;
            display: flex;
            gap: 8px;
            align-items: center;
        }
        .filter-search input {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 8px;
            padding: 8px 14px;
            color: #fff;
            font-size: 0.88rem;
            width: 180px;
            transition: border-color var(--transition);
        }
        .filter-search input:focus {
            border-color: var(--cyan);
        }
        .filter-search input::placeholder {
            color: var(--text-muted);
        }
        .event-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 24px;
        }
        .event-item {
            display: grid;
            grid-template-columns: 85px 1fr 180px 110px;
            gap: 20px;
            align-items: center;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .event-item::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(180deg, var(--cyan), transparent);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .event-item:hover {
            border-color: var(--glass-border-hover);
            background: var(--glass-bg-hover);
            transform: translateX(4px);
        }
        .event-item:hover::before {
            opacity: 1;
        }
        .event-date {
            text-align: center;
        }
        .event-date .day {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--cyan);
            line-height: 1;
        }
        .event-date .month {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .event-info h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 0 0 6px;
            color: #fff;
        }
        .event-info .event-meta {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .event-info .event-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .event-tag {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 6px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(0, 229, 255, 0.1);
            color: var(--cyan);
            border: 1px solid rgba(0, 229, 255, 0.3);
        }
        .event-tag.violet {
            background: rgba(124, 58, 237, 0.15);
            color: var(--violet-soft);
            border-color: rgba(124, 58, 237, 0.35);
        }
        .event-time {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-body);
            text-align: right;
        }
        .event-view {
            text-align: right;
        }
        .event-view .btn {
            font-size: 0.8rem;
            padding: 7px 14px;
        }
        .load-more {
            text-align: center;
            margin: 8px 0 40px;
        }
        .load-more a {
            display: inline-block;
            padding: 12px 32px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: var(--text-body);
            font-weight: 500;
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .load-more a:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.18);
        }
        .section-title {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: clamp(1.3rem, 2vw, 1.7rem);
            font-weight: 650;
            color: #fff;
            margin: 0 0 24px;
            letter-spacing: 0.3px;
        }
        .section-title::before {
            content: '';
            width: 4px;
            height: 28px;
            background: linear-gradient(180deg, var(--cyan), var(--violet));
            border-radius: 2px;
            flex-shrink: 0;
        }
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-bottom: 40px;
        }
        .topic-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .topic-card:hover {
            border-color: var(--glass-border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-dark);
        }
        .topic-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .topic-card-body {
            padding: 18px 20px;
        }
        .topic-card-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 0 0 8px;
            color: #fff;
        }
        .topic-card-body p {
            font-size: 0.88rem;
            color: var(--text-body);
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .topic-card-body .topic-tag {
            font-size: 0.78rem;
            color: var(--violet-soft);
            font-weight: 500;
        }
        .trend-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-bottom: 40px;
        }
        .trend-mini {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-sm);
            padding: 16px 18px;
            text-align: center;
            transition: all var(--transition);
        }
        .trend-mini:hover {
            border-color: var(--glass-border-hover);
        }
        .trend-mini .value {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--cyan);
            line-height: 1.2;
            font-family: var(--font-mono);
        }
        .trend-mini .label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .trend-mini .change {
            font-size: 0.78rem;
            font-weight: 600;
            margin-top: 6px;
            display: inline-block;
            padding: 2px 8px;
            border-radius: 4px;
        }
        .change.up {
            color: #4ade80;
            background: rgba(74, 222, 128, 0.1);
        }
        .change.down {
            color: #f87171;
            background: rgba(248, 113, 113, 0.1);
        }
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.06) 0%, rgba(124, 58, 237, 0.08) 100%);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .cta-section h2 {
            font-size: 1.5rem;
            font-weight: 650;
            color: #fff;
            margin: 0 0 8px;
        }
        .cta-section p {
            font-size: 0.95rem;
            color: var(--text-body);
            margin: 0;
            max-width: 520px;
        }
        .cta-section .btn {
            flex-shrink: 0;
        }
        .faq-section {
            margin-bottom: 40px;
        }
        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-sm);
            margin-bottom: 8px;
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(0, 229, 255, 0.3);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 14px 18px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: #fff;
            user-select: none;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--cyan);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan);
            font-size: 1.05rem;
            line-height: 1;
            transition: all var(--transition);
        }
        .faq-item.open .faq-icon {
            background: var(--cyan);
            color: var(--text-dark);
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease;
            font-size: 0.88rem;
            color: var(--text-body);
            padding: 0 18px;
        }
        .faq-item.open .faq-answer {
            max-height: 220px;
            padding-bottom: 16px;
        }
        .quick-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            padding: 20px 0 10px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .quick-links .label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-muted);
        }
        .quick-links a {
            padding: 6px 14px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
            color: var(--text-body);
            transition: all var(--transition);
        }
        .quick-links a:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }
        .site-footer {
            background: #050b14;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 56px 0 24px;
            margin-top: 20px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--cyan), var(--violet));
            color: var(--text-dark);
            font-weight: 800;
            font-size: 0.95rem;
        }
        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin: 0;
            max-width: 340px;
            line-height: 1.7;
        }
        .footer-section h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin: 0 0 14px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--cyan);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .copyright {
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-legal {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-legal a {
            color: var(--text-muted);
        }
        .footer-legal a:hover {
            color: var(--cyan);
        }
        @media (max-width: 1024px) {
            .main-nav a {
                padding: 6px 10px;
                font-size: 0.88rem;
            }
            .nav-cta .btn {
                padding: 7px 12px;
                font-size: 0.8rem;
            }
            .event-item {
                grid-template-columns: 70px 1fr 130px;
                gap: 12px;
                padding: 16px 18px;
            }
            .event-view {
                display: none;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .trend-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(7, 14, 26, 0.97);
                flex-direction: column;
                padding: 16px 24px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.1);
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                font-size: 1rem;
                width: 100%;
                border-radius: 8px;
            }
            .nav-cta .btn {
                display: none;
            }
            .header-inner {
                gap: 12px;
            }
            .page-header {
                padding: 28px 0 20px;
            }
            .filter-search input {
                width: 100%;
            }
            .filter-search {
                margin-left: 0;
                width: 100%;
            }
            .event-item {
                grid-template-columns: 60px 1fr;
                gap: 10px;
                padding: 14px 16px;
            }
            .event-date .day {
                font-size: 1.4rem;
            }
            .event-time {
                grid-column: 1 / -1;
                text-align: left;
                font-size: 0.85rem;
            }
            .event-view {
                display: block;
                grid-column: 1 / -1;
                text-align: left;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .trend-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .cta-section {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }
            .cta-section p {
                max-width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-legal {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .trend-strip {
                grid-template-columns: 1fr 1fr;
            }
            .trend-mini {
                padding: 12px 10px;
            }
            .trend-mini .value {
                font-size: 1.2rem;
            }
            .page-header h1 {
                font-size: 1.6rem;
            }
            .event-info h3 {
                font-size: 0.95rem;
            }
            .event-info .event-meta {
                font-size: 0.78rem;
                gap: 8px;
            }
            .quick-links {
                gap: 8px;
            }
            .quick-links a {
                font-size: 0.78rem;
                padding: 5px 10px;
            }
        }

/* roulang page: category2 */
:root {
      --bg-deep: #070e1a;
      --bg-dark: #0a1628;
      --bg-panel: #0f2540;
      --cyan: #00e5ff;
      --cyan-soft: #00b4d8;
      --violet: #7c3aed;
      --violet-soft: #a78bfa;
      --text-main: rgba(233, 238, 245, 0.95);
      --text-body: rgba(233, 238, 245, 0.85);
      --text-muted: rgba(200, 210, 225, 0.62);
      --text-dark: #06121f;
      --glass-bg: rgba(255, 255, 255, 0.06);
      --glass-bg-hover: rgba(255, 255, 255, 0.1);
      --glass-border: rgba(255, 255, 255, 0.12);
      --glass-border-hover: rgba(0, 229, 255, 0.55);
      --radius-sm: 10px;
      --radius-md: 16px;
      --radius-lg: 20px;
      --radius-xl: 28px;
      --shadow-cyan: 0 0 18px rgba(0, 229, 255, 0.35);
      --shadow-cyan-lg: 0 0 32px rgba(0, 229, 255, 0.45);
      --shadow-dark: 0 18px 40px rgba(0, 0, 0, 0.45);
      --space-section: 56px;
      --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
      --font-mono: 'SF Mono', 'Cascadia Code', 'Roboto Mono', 'Consolas', monospace;
      --container-max: 1200px;
      --header-height: 72px;
      --transition: 0.25s ease;
    }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      font-family: var(--font-sans);
      background: var(--bg-deep);
      color: var(--text-main);
      line-height: 1.6;
      font-size: 16px;
      min-height: 100vh;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      background-image:
        radial-gradient(ellipse at 20% 10%, rgba(0, 229, 255, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 40%, rgba(124, 58, 237, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, #070e1a 0%, #0a1628 45%, #0f2540 100%);
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition);
    }

    a:hover {
      color: var(--cyan);
    }

    button,
    input,
    select,
    textarea {
      font-family: var(--font-sans);
      font-size: 16px;
      border: none;
      outline: none;
    }

    button {
      cursor: pointer;
      background: none;
    }

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

    /* Header */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(7, 14, 26, 0.92);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      min-height: var(--header-height);
      padding: 12px 0;
    }

    .logo {
      flex-shrink: 0;
      font-size: 1.5rem;
      font-weight: 700;
      letter-spacing: 1px;
      color: #fff;
      display: flex;
      align-items: center;
      gap: 8px;
      white-space: nowrap;
    }

    .logo-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--cyan), var(--violet));
      color: var(--text-dark);
      font-weight: 800;
      font-size: 1.1rem;
      flex-shrink: 0;
    }

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

    .main-nav a {
      padding: 8px 14px;
      border-radius: 8px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-body);
      white-space: nowrap;
      position: relative;
      transition: all var(--transition);
    }

    .main-nav a:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.05);
    }

    .main-nav a.active {
      color: var(--cyan);
      background: rgba(0, 229, 255, 0.08);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 10px 20px;
      border-radius: 10px;
      font-size: 0.95rem;
      font-weight: 600;
      transition: all var(--transition);
      white-space: nowrap;
      line-height: 1.2;
    }

    .btn-primary {
      background: var(--cyan);
      color: var(--text-dark);
      box-shadow: var(--shadow-cyan);
    }

    .btn-primary:hover {
      background: #33ebff;
      box-shadow: var(--shadow-cyan-lg);
      transform: translateY(-1px);
      color: var(--text-dark);
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 0 10px rgba(0, 229, 255, 0.25);
    }

    .btn-outline {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.18);
      color: #fff;
    }

    .btn-outline:hover {
      border-color: var(--cyan);
      box-shadow: 0 0 12px rgba(0, 229, 255, 0.25);
      background: rgba(0, 229, 255, 0.06);
      color: var(--cyan);
    }

    .btn-sm {
      padding: 7px 14px;
      font-size: 0.85rem;
      border-radius: 8px;
    }

    .btn-lg {
      padding: 14px 32px;
      font-size: 1.05rem;
      border-radius: 12px;
    }

    .btn:focus-visible,
    .main-nav a:focus-visible,
    .chip:focus-visible,
    a:focus-visible {
      outline: 2px solid var(--cyan);
      outline-offset: 2px;
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 4px;
      padding: 8px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
    }

    .nav-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      background: #fff;
      border-radius: 2px;
      transition: all var(--transition);
    }

    .announcement-bar {
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      background: rgba(10, 22, 40, 0.7);
      padding: 8px 0;
    }

    .announcement-inner {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    .chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 20px;
      background: rgba(0, 229, 255, 0.08);
      border: 1px solid rgba(0, 229, 255, 0.3);
      color: var(--cyan);
      font-size: 0.82rem;
      font-weight: 500;
      transition: all var(--transition);
      white-space: nowrap;
    }

    .chip:hover {
      background: rgba(0, 229, 255, 0.16);
      border-color: rgba(0, 229, 255, 0.55);
      color: #fff;
    }

    .announcement-dot {
      display: inline-block;
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 8px rgba(0, 229, 255, 0.6);
      animation: pulse-dot 2s ease-in-out infinite;
    }

    @keyframes pulse-dot {
      0%, 100% { opacity: 1; transform: scale(1); }
      50% { opacity: 0.5; transform: scale(1.4); }
    }

    /* Main content */
    main {
      min-height: 60vh;
    }

    section {
      padding: var(--space-section) 0;
    }

    .section-alt {
      background: rgba(255, 255, 255, 0.02);
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .section-title {
      font-size: clamp(1.5rem, 2.4vw, 2rem);
      font-weight: 650;
      line-height: 1.3;
      color: #fff;
      margin-bottom: 12px;
      position: relative;
      padding-left: 16px;
    }

    .section-title::before {
      content: '';
      position: absolute;
      left: 0;
      top: 50%;
      transform: translateY(-50%);
      width: 4px;
      height: 28px;
      border-radius: 4px;
      background: linear-gradient(180deg, var(--cyan), var(--violet));
      box-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
    }

    .section-subtitle {
      font-size: 1rem;
      color: var(--text-muted);
      max-width: 780px;
      margin-bottom: 36px;
      line-height: 1.7;
    }

    /* Breadcrumb */
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 6px;
      font-size: 0.85rem;
      color: var(--text-muted);
      flex-wrap: wrap;
      margin-bottom: 16px;
    }

    .breadcrumb a {
      color: var(--text-muted);
      transition: color var(--transition);
    }

    .breadcrumb a:hover {
      color: var(--cyan);
    }

    .breadcrumb-sep {
      color: rgba(255, 255, 255, 0.3);
      user-select: none;
    }

    .breadcrumb .current {
      color: var(--cyan);
      font-weight: 500;
    }

    /* Page header */
    .page-header {
      padding: 40px 0 24px;
    }

    .page-header-inner {
      display: flex;
      flex-direction: row;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      flex-wrap: wrap;
    }

    .page-header-content {
      flex: 1;
      min-width: 260px;
    }

    .page-header h1 {
      font-size: clamp(1.8rem, 3.2vw, 2.6rem);
      font-weight: 700;
      line-height: 1.25;
      color: #fff;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .page-header-desc {
      font-size: 1rem;
      color: var(--text-body);
      max-width: 700px;
      line-height: 1.7;
    }

    .page-header-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 20px;
      background: rgba(0, 229, 255, 0.08);
      border: 1px solid rgba(0, 229, 255, 0.25);
      color: var(--cyan);
      font-size: 0.82rem;
      font-weight: 600;
      white-space: nowrap;
      margin-bottom: 16px;
    }

    .page-header-tag::before {
      content: '';
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 10px rgba(0, 229, 255, 0.6);
    }

    /* Filter bar */
    .filter-section {
      padding: 20px 0;
    }

    .filter-bar {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      padding: 16px 20px;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .filter-label {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 500;
      white-space: nowrap;
    }

    .filter-chips {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      flex: 1;
    }

    .filter-chip {
      padding: 6px 16px;
      border-radius: 18px;
      font-size: 0.85rem;
      font-weight: 500;
      color: var(--text-body);
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.12);
      transition: all var(--transition);
      white-space: nowrap;
    }

    .filter-chip:hover {
      border-color: rgba(0, 229, 255, 0.4);
      color: var(--cyan);
      background: rgba(0, 229, 255, 0.06);
    }

    .filter-chip.active {
      background: rgba(0, 229, 255, 0.1);
      border-color: rgba(0, 229, 255, 0.5);
      color: var(--cyan);
    }

    .filter-select-wrap {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .filter-select {
      padding: 8px 14px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.14);
      color: var(--text-body);
      font-size: 0.85rem;
      cursor: pointer;
      transition: border-color var(--transition);
    }

    .filter-select:focus {
      border-color: var(--cyan);
    }

    .filter-select option {
      background: var(--bg-dark);
      color: var(--text-body);
    }

    /* Team list */
    .team-list-section {
      padding-top: 16px;
    }

    .team-list {
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .team-card {
      display: grid;
      grid-template-columns: 260px 1fr;
      gap: 0;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: all var(--transition);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .team-card:hover {
      border-color: var(--glass-border-hover);
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4), 0 0 16px rgba(0, 229, 255, 0.12);
      transform: translateY(-2px);
    }

    .team-card-img {
      position: relative;
      min-height: 180px;
      background: linear-gradient(135deg, #0f2540, #070e1a);
      overflow: hidden;
    }

    .team-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      position: absolute;
      top: 0;
      left: 0;
    }

    .team-card-img::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(7, 14, 26, 0.5) 0%, rgba(7, 14, 26, 0) 60%);
      pointer-events: none;
    }

    .team-card-body {
      padding: 22px 26px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .team-card-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    .team-tag {
      display: inline-flex;
      align-items: center;
      padding: 4px 12px;
      border-radius: 6px;
      font-size: 0.75rem;
      font-weight: 600;
      letter-spacing: 0.5px;
      background: rgba(0, 229, 255, 0.08);
      border: 1px solid rgba(0, 229, 255, 0.25);
      color: var(--cyan);
    }

    .team-tag.violet {
      background: rgba(124, 58, 237, 0.12);
      border-color: rgba(124, 58, 237, 0.4);
      color: var(--violet-soft);
    }

    .team-tag.green {
      background: rgba(16, 185, 129, 0.1);
      border-color: rgba(16, 185, 129, 0.35);
      color: #6ee7b7;
    }

    .team-date {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    .team-card-title {
      font-size: 1.2rem;
      font-weight: 650;
      line-height: 1.4;
      color: #fff;
      transition: color var(--transition);
    }

    .team-card:hover .team-card-title {
      color: var(--cyan);
    }

    .team-card-desc {
      font-size: 0.92rem;
      color: var(--text-muted);
      line-height: 1.65;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .team-stats {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
      margin-top: auto;
      padding-top: 8px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }

    .stat-item {
      display: flex;
      align-items: baseline;
      gap: 4px;
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .stat-value {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--cyan);
      font-family: var(--font-mono);
    }

    .stat-label {
      font-size: 0.78rem;
    }

    /* More link */
    .more-wrap {
      display: flex;
      justify-content: center;
      padding: 32px 0 8px;
    }

    .btn-more {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 10px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--cyan);
      background: rgba(0, 229, 255, 0.06);
      border: 1px solid rgba(0, 229, 255, 0.25);
      transition: all var(--transition);
    }

    .btn-more:hover {
      background: rgba(0, 229, 255, 0.14);
      border-color: rgba(0, 229, 255, 0.5);
      box-shadow: 0 0 16px rgba(0, 229, 255, 0.2);
      color: #fff;
    }

    .btn-more .arrow {
      display: inline-block;
      transition: transform var(--transition);
    }

    .btn-more:hover .arrow {
      transform: translateX(4px);
    }

    /* Trend sidebar */
    .trend-section {
      padding-top: 20px;
    }

    .trend-grid {
      display: grid;
      grid-template-columns: 1fr 280px;
      gap: 24px;
      align-items: start;
    }

    .trend-main {
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .trend-card {
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 16px 20px;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      transition: all var(--transition);
    }

    .trend-card:hover {
      border-color: var(--glass-border-hover);
      background: var(--glass-bg-hover);
    }

    .trend-rank {
      font-size: 1.6rem;
      font-weight: 800;
      font-family: var(--font-mono);
      color: var(--cyan);
      opacity: 0.7;
      min-width: 48px;
      text-align: center;
    }

    .trend-info {
      flex: 1;
      min-width: 0;
    }

    .trend-name {
      font-size: 0.95rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 4px;
    }

    .trend-detail {
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .trend-change {
      font-size: 0.82rem;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 6px;
      white-space: nowrap;
    }

    .trend-change.up {
      color: #6ee7b7;
      background: rgba(16, 185, 129, 0.1);
    }

    .trend-change.down {
      color: #f87171;
      background: rgba(239, 68, 68, 0.1);
    }

    .trend-change.stable {
      color: var(--text-muted);
      background: rgba(255, 255, 255, 0.04);
    }

    .sidebar-card {
      padding: 20px;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-lg);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .sidebar-card h3 {
      font-size: 1.05rem;
      font-weight: 650;
      color: #fff;
      margin-bottom: 12px;
      padding-bottom: 10px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .sidebar-list {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .sidebar-item {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      color: var(--text-body);
      padding: 8px 10px;
      border-radius: 8px;
      transition: all var(--transition);
    }

    .sidebar-item:hover {
      background: rgba(255, 255, 255, 0.04);
      color: var(--cyan);
    }

    .sidebar-item .value {
      font-family: var(--font-mono);
      font-weight: 700;
      color: var(--cyan);
      font-size: 0.95rem;
    }

    /* Related topics */
    .related-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }

    .topic-card {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: all var(--transition);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .topic-card:hover {
      border-color: var(--glass-border-hover);
      transform: translateY(-3px);
      box-shadow: 0 14px 32px rgba(0, 0, 0, 0.35);
    }

    .topic-card-img {
      height: 160px;
      background: linear-gradient(135deg, #0f2540, #070e1a);
      position: relative;
      overflow: hidden;
    }

    .topic-card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

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

    .topic-card-title {
      font-size: 1rem;
      font-weight: 600;
      color: #fff;
      margin-bottom: 6px;
      line-height: 1.4;
    }

    .topic-card-desc {
      font-size: 0.85rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* CTA */
    .cta-section {
      padding: 40px 0;
    }

    .cta-box {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      padding: 36px 40px;
      background: linear-gradient(135deg, rgba(0, 229, 255, 0.08) 0%, rgba(124, 58, 237, 0.08) 100%);
      border: 1px solid rgba(0, 229, 255, 0.2);
      border-radius: var(--radius-xl);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      flex-wrap: wrap;
    }

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

    .cta-box-title {
      font-size: 1.4rem;
      font-weight: 650;
      color: #fff;
      margin-bottom: 8px;
    }

    .cta-box-desc {
      font-size: 0.95rem;
      color: var(--text-body);
      line-height: 1.6;
    }

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

    /* FAQ */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
      max-width: 800px;
    }

    .faq-item {
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all var(--transition);
    }

    .faq-item:hover {
      border-color: rgba(255, 255, 255, 0.2);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      width: 100%;
      padding: 18px 22px;
      font-size: 0.98rem;
      font-weight: 600;
      color: #fff;
      text-align: left;
      transition: all var(--transition);
    }

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

    .faq-icon {
      flex-shrink: 0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: rgba(0, 229, 255, 0.1);
      border: 1px solid rgba(0, 229, 255, 0.25);
      color: var(--cyan);
      font-size: 1rem;
      font-weight: 600;
      transition: all var(--transition);
      line-height: 1;
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      background: rgba(0, 229, 255, 0.18);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.25s ease, padding 0.25s ease;
      padding: 0 22px;
      color: var(--text-body);
      font-size: 0.9rem;
      line-height: 1.7;
    }

    .faq-item.open .faq-answer {
      max-height: 200px;
      padding-bottom: 20px;
    }

    /* Quick links */
    .quick-links-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    .quick-link-card {
      display: flex;
      flex-direction: column;
      gap: 8px;
      padding: 20px;
      background: var(--glass-bg);
      border: 1px solid var(--glass-border);
      border-radius: var(--radius-md);
      transition: all var(--transition);
    }

    .quick-link-card:hover {
      border-color: var(--glass-border-hover);
      background: var(--glass-bg-hover);
      transform: translateY(-2px);
    }

    .quick-link-name {
      font-size: 0.95rem;
      font-weight: 600;
      color: #fff;
    }

    .quick-link-desc {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    /* Footer */
    .site-footer {
      background: #050a12;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 56px 0 24px;
      margin-top: 32px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 32px;
      margin-bottom: 40px;
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 1.3rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
    }

    .footer-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.7;
      max-width: 300px;
    }

    .footer-section h4 {
      font-size: 0.95rem;
      font-weight: 650;
      color: #fff;
      margin-bottom: 14px;
      letter-spacing: 0.5px;
    }

    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .footer-links a {
      font-size: 0.88rem;
      color: var(--text-muted);
      transition: color var(--transition);
    }

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

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }

    .copyright {
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    .footer-legal {
      display: flex;
      align-items: center;
      gap: 14px;
      flex-wrap: wrap;
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .footer-legal a {
      color: var(--text-muted);
      transition: color var(--transition);
    }

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

    /* Mobile nav drawer */
    .mobile-nav-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.5);
      z-index: 98;
    }

    .mobile-nav-drawer {
      display: none;
      position: fixed;
      top: 0;
      right: 0;
      width: 280px;
      max-width: 85vw;
      height: 100vh;
      background: var(--bg-dark);
      z-index: 99;
      padding: 24px;
      overflow-y: auto;
      transform: translateX(100%);
      transition: transform 0.3s ease;
      border-left: 1px solid rgba(255, 255, 255, 0.1);
    }

    .mobile-nav-drawer.open {
      transform: translateX(0);
    }

    .mobile-nav-overlay.show {
      display: block;
    }

    .mobile-nav-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 20px;
    }

    .mobile-nav-close {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.12);
      color: #fff;
      font-size: 1.2rem;
    }

    .mobile-nav-links {
      display: flex;
      flex-direction: column;
      gap: 4px;
    }

    .mobile-nav-links a {
      padding: 12px 16px;
      border-radius: 8px;
      font-size: 1rem;
      color: var(--text-body);
      transition: all var(--transition);
    }

    .mobile-nav-links a:hover {
      background: rgba(255, 255, 255, 0.05);
      color: #fff;
    }

    .mobile-nav-links a.active {
      color: var(--cyan);
      background: rgba(0, 229, 255, 0.08);
    }

    /* Responsive */
    @media (min-width: 1024px) {
      .nav-toggle {
        display: none;
      }
      .mobile-nav-drawer,
      .mobile-nav-overlay {
        display: none !important;
      }
    }

    @media (max-width: 1023px) and (min-width: 768px) {
      .main-nav {
        gap: 0;
      }
      .main-nav a {
        padding: 8px 10px;
        font-size: 0.86rem;
      }
      .nav-cta .btn-outline {
        display: none;
      }
      .team-card {
        grid-template-columns: 200px 1fr;
      }
      .trend-grid {
        grid-template-columns: 1fr;
      }
      .related-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .quick-links-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1.5fr 1fr 1fr;
      }
      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 767px) {
      :root {
        --space-section: 44px;
      }
      .container {
        padding: 0 16px;
      }
      .header-inner {
        gap: 12px;
        padding: 8px 0;
      }
      .main-nav {
        display: none;
      }
      .nav-cta .btn-outline {
        display: none;
      }
      .nav-toggle {
        display: flex;
      }
      .mobile-nav-drawer {
        display: block;
      }
      .mobile-nav-overlay {
        display: block;
      }
      .announcement-inner {
        gap: 6px;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 4px;
      }
      .chip {
        font-size: 0.75rem;
        padding: 5px 12px;
      }
      .page-header {
        padding: 28px 0 16px;
      }
      .page-header-inner {
        flex-direction: column;
        align-items: flex-start;
      }
      .filter-bar {
        padding: 14px 16px;
        flex-direction: column;
        align-items: flex-start;
      }
      .filter-chips {
        gap: 6px;
      }
      .team-card {
        grid-template-columns: 1fr;
      }
      .team-card-img {
        min-height: 160px;
        max-height: 200px;
      }
      .team-card-body {
        padding: 16px 18px;
      }
      .team-stats {
        gap: 12px;
      }
      .trend-grid {
        grid-template-columns: 1fr;
      }
      .trend-card {
        padding: 12px 14px;
      }
      .trend-rank {
        font-size: 1.2rem;
        min-width: 36px;
      }
      .related-grid {
        grid-template-columns: 1fr;
      }
      .cta-box {
        padding: 28px 22px;
        flex-direction: column;
        align-items: flex-start;
      }
      .quick-links-grid {
        grid-template-columns: 1fr;
      }
      .faq-question {
        padding: 16px 18px;
        font-size: 0.9rem;
      }
      .faq-answer {
        padding: 0 18px;
      }
      .faq-item.open .faq-answer {
        padding-bottom: 16px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }
      .footer-legal {
        gap: 8px;
      }
      .section-title {
        font-size: 1.3rem;
      }
      .btn-lg {
        padding: 12px 24px;
        font-size: 0.95rem;
      }
      .btn-more {
        padding: 10px 20px;
        font-size: 0.88rem;
      }
    }

/* roulang page: category3 */
:root {
            --bg-deep: #070e1a;
            --bg-dark: #0a1628;
            --bg-panel: #0f2540;
            --cyan: #00e5ff;
            --cyan-soft: #00b4d8;
            --violet: #7c3aed;
            --violet-soft: #a78bfa;
            --text-main: rgba(233, 238, 245, 0.95);
            --text-body: rgba(233, 238, 245, 0.85);
            --text-muted: rgba(200, 210, 225, 0.62);
            --text-dark: #06121f;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-bg-hover: rgba(255, 255, 255, 0.1);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-border-hover: rgba(0, 229, 255, 0.55);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-cyan: 0 0 18px rgba(0, 229, 255, 0.35);
            --shadow-cyan-lg: 0 0 32px rgba(0, 229, 255, 0.45);
            --shadow-dark: 0 18px 40px rgba(0, 0, 0, 0.45);
            --space-section: 88px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Roboto Mono', 'Consolas', monospace;
            --container-max: 1200px;
            --header-height: 72px;
            --transition: 0.25s ease;
        }
        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            display: block;
            height: auto;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--cyan);
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 16px;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(7, 14, 26, 0.9);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            min-height: var(--header-height);
            padding: 12px 0;
        }
        .logo {
            flex-shrink: 0;
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 1px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--cyan), var(--violet));
            color: var(--text-dark);
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .main-nav a {
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            white-space: nowrap;
            position: relative;
            transition: all var(--transition);
        }
        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }
        .main-nav a.active {
            color: var(--cyan);
            background: rgba(0, 229, 255, 0.08);
        }
        .nav-cta {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--cyan);
            color: var(--text-dark);
            box-shadow: var(--shadow-cyan);
        }
        .btn-primary:hover {
            background: #33ebff;
            box-shadow: var(--shadow-cyan-lg);
            transform: translateY(-1px);
            color: var(--text-dark);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.25);
        }
        .btn-outline {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #fff;
        }
        .btn-outline:hover {
            border-color: var(--cyan);
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.25);
            color: #fff;
        }
        .btn-sm {
            padding: 8px 16px;
            font-size: 0.9rem;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
        }
        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition);
        }
        /* Announcement bar */
        .announcement-bar {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            background: rgba(7, 14, 26, 0.6);
            padding: 6px 0;
        }
        .announcement-inner {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 999px;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid var(--cyan);
            color: var(--cyan);
            font-size: 0.82rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .chip:hover {
            background: rgba(0, 229, 255, 0.16);
            color: #fff;
        }
        .announcement-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan);
            animation: pulse-dot 1.8s ease infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 229, 255, 0.4);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(0, 229, 255, 0);
            }
        }
        /* Main */
        main {
            min-height: 60vh;
        }
        /* Breadcrumb */
        .breadcrumb-section {
            padding: 24px 0 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--cyan);
        }
        .breadcrumb .separator {
            color: rgba(200, 210, 225, 0.4);
        }
        .breadcrumb .current {
            color: var(--cyan);
        }
        /* Category header */
        .category-header {
            padding: 32px 0 12px;
        }
        .category-header h1 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 12px;
        }
        .category-intro {
            font-size: 1.05rem;
            color: var(--text-body);
            max-width: 720px;
            line-height: 1.7;
        }
        /* Section base */
        .section {
            padding: var(--space-section) 0;
            position: relative;
        }
        .section-alt {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .section-header {
            margin-bottom: 32px;
        }
        .section-header h2 {
            font-size: clamp(1.5rem, 2.6vw, 2.2rem);
            font-weight: 650;
            line-height: 1.3;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .section-header h2::before {
            content: '';
            width: 4px;
            height: 28px;
            border-radius: 2px;
            background: linear-gradient(180deg, var(--cyan), var(--violet));
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.4);
        }
        .section-header p {
            color: var(--text-muted);
            margin-top: 8px;
            max-width: 680px;
        }
        /* Filter bar */
        .filter-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 16px 20px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }
        .filter-tags {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-tag {
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: var(--text-body);
            font-size: 0.88rem;
            font-weight: 500;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-tag:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }
        .filter-tag.active {
            background: rgba(0, 229, 255, 0.12);
            border-color: var(--cyan);
            color: var(--cyan);
        }
        .filter-search {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 10px;
            transition: border-color var(--transition);
        }
        .filter-search:focus-within {
            border-color: var(--cyan);
        }
        .filter-search input {
            background: none;
            color: #fff;
            width: 160px;
            font-size: 0.9rem;
        }
        .filter-search input::placeholder {
            color: var(--text-muted);
        }
        .filter-search .search-icon {
            color: var(--text-muted);
            font-size: 1rem;
            flex-shrink: 0;
        }
        /* Rankings list - horizontal cards */
        .rankings-list {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }
        .ranking-card {
            display: flex;
            gap: 20px;
            padding: 20px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all var(--transition);
            overflow: hidden;
            position: relative;
        }
        .ranking-card:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
        }
        .ranking-card-img {
            width: 200px;
            flex-shrink: 0;
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            aspect-ratio: 16/9;
        }
        .ranking-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .ranking-card:hover .ranking-card-img img {
            transform: scale(1.04);
        }
        .ranking-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(124, 58, 237, 0.2));
            pointer-events: none;
        }
        .ranking-card-body {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 10px;
        }
        .ranking-card-top {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .ranking-rank {
            font-family: var(--font-mono);
            font-size: 2rem;
            font-weight: 700;
            color: var(--cyan);
            line-height: 1;
            text-shadow: 0 0 16px rgba(0, 229, 255, 0.4);
            flex-shrink: 0;
        }
        .ranking-title {
            font-size: 1.15rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.3;
        }
        .ranking-tags {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }
        .ranking-tag {
            padding: 2px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: var(--text-muted);
        }
        .ranking-metrics {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        .ranking-metric {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .ranking-metric-label {
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .ranking-metric-value {
            font-family: var(--font-mono);
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
        }
        .ranking-metric-value.up {
            color: #2ee6a8;
        }
        .ranking-metric-value.down {
            color: #ff6b6b;
        }
        .ranking-bar-wrap {
            width: 100%;
            height: 6px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 3px;
            overflow: hidden;
            position: relative;
        }
        .ranking-bar-fill {
            height: 100%;
            border-radius: 3px;
            background: linear-gradient(90deg, var(--cyan), var(--violet));
            transition: width 0.6s ease;
        }
        /* More link */
        .more-wrap {
            display: flex;
            justify-content: center;
            padding-top: 28px;
        }
        .more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.14);
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
        }
        .more-link:hover {
            border-color: var(--cyan);
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.2);
            color: var(--cyan);
        }
        /* Trend grid */
        .trend-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .trend-card {
            padding: 20px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all var(--transition);
        }
        .trend-card:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            transform: translateY(-2px);
        }
        .trend-card-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .trend-card-value {
            font-family: var(--font-mono);
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            line-height: 1.2;
        }
        .trend-card-value.up {
            color: #2ee6a8;
        }
        .trend-card-value.down {
            color: #ff6b6b;
        }
        .trend-card-change {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        /* Topic cards */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .topic-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all var(--transition);
        }
        .topic-card:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            transform: translateY(-3px);
            box-shadow: 0 14px 34px rgba(0, 0, 0, 0.4);
        }
        .topic-card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }
        .topic-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .topic-card:hover .topic-card-img img {
            transform: scale(1.05);
        }
        .topic-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(7, 14, 26, 0.6));
            pointer-events: none;
        }
        .topic-card-body {
            padding: 18px 20px 20px;
        }
        .topic-card-body h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .topic-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.6;
        }
        /* CTA section */
        .cta-section {
            padding: var(--space-section) 0;
        }
        .cta-card {
            padding: 40px 36px;
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.08), rgba(124, 58, 237, 0.1)), var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-xl);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(0, 229, 255, 0.08);
            top: -120px;
            right: -60px;
            pointer-events: none;
        }
        .cta-card-content h2 {
            font-size: clamp(1.4rem, 2.2vw, 1.8rem);
            font-weight: 650;
            color: #fff;
            margin-bottom: 8px;
        }
        .cta-card-content p {
            color: var(--text-body);
            max-width: 520px;
        }
        .cta-card-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        /* FAQ */
        .faq-list {
            max-width: 820px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(0, 229, 255, 0.3);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            transition: all var(--transition);
            width: 100%;
            text-align: left;
            color: #fff;
            font-size: 1rem;
            font-weight: 600;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan);
            font-size: 1.1rem;
            transition: all var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 229, 255, 0.16);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 22px;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 22px 18px;
        }
        .faq-answer p {
            color: var(--text-body);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        /* Quick links */
        .quick-links-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }
        .quick-link-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 18px;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            transition: all var(--transition);
            font-weight: 500;
            color: var(--text-body);
        }
        .quick-link-card:hover {
            background: var(--glass-bg-hover);
            border-color: var(--glass-border-hover);
            color: #fff;
        }
        .quick-link-card .dot-indicator {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--cyan);
            box-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
            flex-shrink: 0;
        }
        /* Footer */
        .site-footer {
            margin-top: var(--space-section);
            background: rgba(7, 14, 26, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-desc {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-section h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--cyan);
        }
        .footer-bottom {
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .copyright {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .footer-legal {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-legal a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-legal a:hover {
            color: var(--cyan);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 2px;
            }
            .main-nav a {
                padding: 8px 10px;
                font-size: 0.88rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .trend-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .quick-links-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 10px;
                padding: 10px 0;
            }
            .main-nav {
                display: none;
                order: 3;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 2px;
                padding: 8px 0;
                background: rgba(7, 14, 26, 0.95);
                border-radius: var(--radius-sm);
                border: 1px solid rgba(255, 255, 255, 0.08);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 10px 16px;
                text-align: center;
            }
            .nav-cta {
                gap: 6px;
            }
            .nav-toggle {
                display: flex;
            }
            .announcement-inner {
                gap: 6px;
            }
            .chip {
                font-size: 0.75rem;
                padding: 3px 10px;
            }
            .ranking-card {
                flex-direction: column;
                gap: 14px;
                padding: 16px;
            }
            .ranking-card-img {
                width: 100%;
                aspect-ratio: 16/8;
            }
            .ranking-metrics {
                gap: 14px;
            }
            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-search input {
                width: 100%;
            }
            .trend-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .quick-links-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .cta-card {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .trend-grid {
                grid-template-columns: 1fr;
            }
            .quick-links-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .ranking-rank {
                font-size: 1.6rem;
            }
            .ranking-title {
                font-size: 1rem;
            }
            .cta-card {
                padding: 22px 18px;
            }
            .cta-card-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-card-actions .btn {
                width: 100%;
            }
            .faq-question {
                padding: 14px 18px;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 18px;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 14px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-deep: #070e1a;
            --bg-dark: #0a1628;
            --bg-panel: #0f2540;
            --cyan: #00e5ff;
            --cyan-soft: #00b4d8;
            --violet: #7c3aed;
            --violet-soft: #a78bfa;
            --text-main: rgba(233, 238, 245, 0.95);
            --text-body: rgba(233, 238, 245, 0.85);
            --text-muted: rgba(200, 210, 225, 0.62);
            --text-dark: #06121f;
            --glass-bg: rgba(255, 255, 255, 0.06);
            --glass-bg-hover: rgba(255, 255, 255, 0.1);
            --glass-border: rgba(255, 255, 255, 0.12);
            --glass-border-hover: rgba(0, 229, 255, 0.55);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-cyan: 0 0 18px rgba(0, 229, 255, 0.35);
            --shadow-cyan-lg: 0 0 32px rgba(0, 229, 255, 0.45);
            --shadow-dark: 0 18px 40px rgba(0, 0, 0, 0.45);
            --space-section: 56px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Roboto Mono', 'Consolas', monospace;
            --container-max: 1200px;
            --header-height: 72px;
            --transition: 0.25s ease;
            --space-card: 24px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.6;
            font-size: 16px;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--cyan);
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 16px;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

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

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(7, 14, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            min-height: var(--header-height);
            padding: 10px 0;
        }

        .logo {
            flex-shrink: 0;
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 1px;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--cyan), var(--violet));
            color: var(--text-dark);
            font-weight: 800;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

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

        .main-nav a {
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            white-space: nowrap;
            position: relative;
            transition: all var(--transition);
        }

        .main-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.05);
        }

        .main-nav a.active {
            color: var(--cyan);
            background: rgba(0, 229, 255, 0.08);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--cyan);
            color: var(--text-dark);
            box-shadow: var(--shadow-cyan);
        }

        .btn-primary:hover {
            background: #33ebff;
            box-shadow: var(--shadow-cyan-lg);
            transform: translateY(-1px);
            color: var(--text-dark);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.25);
        }

        .btn-outline {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: #fff;
        }

        .btn-outline:hover {
            border-color: var(--cyan);
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
            color: #fff;
        }

        .btn-sm {
            padding: 7px 14px;
            font-size: 0.85rem;
            border-radius: 8px;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.04);
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 1px;
            transition: all var(--transition);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .announcement-bar {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            background: rgba(7, 14, 26, 0.6);
            padding: 6px 0;
        }

        .announcement-inner {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.35);
            color: var(--cyan);
            font-size: 0.82rem;
            font-weight: 500;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .chip:hover {
            background: rgba(0, 229, 255, 0.16);
            color: #fff;
            border-color: var(--cyan);
        }

        .announcement-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan);
            box-shadow: 0 0 8px var(--cyan);
            flex-shrink: 0;
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            padding: 18px 0 4px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        .breadcrumb-bar a {
            color: var(--text-muted);
        }

        .breadcrumb-bar a:hover {
            color: var(--cyan);
        }

        .breadcrumb-sep {
            margin: 0 8px;
            color: rgba(255, 255, 255, 0.3);
        }

        .breadcrumb-current {
            color: var(--cyan);
        }

        /* Section common */
        .section {
            padding: var(--space-section) 0;
        }

        .section-alt {
            background: rgba(10, 22, 40, 0.5);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .section-header {
            margin-bottom: 32px;
        }

        .section-header h2 {
            font-size: clamp(1.5rem, 2.6vw, 2.2rem);
            font-weight: 650;
            color: #fff;
            line-height: 1.3;
            display: flex;
            align-items: center;
            gap: 12px;
            letter-spacing: 0.5px;
        }

        .section-header h2::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 28px;
            background: var(--cyan);
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.5);
            flex-shrink: 0;
        }

        .section-header .section-sub {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-top: 10px;
            max-width: 680px;
        }

        /* Wiki hero intro (not full-screen hero) */
        .wiki-intro {
            padding: 40px 0 20px;
        }

        .wiki-intro-grid {
            display: grid;
            grid-template-columns: 1fr 360px;
            gap: 40px;
            align-items: start;
        }

        .wiki-intro-main h1 {
            font-size: clamp(1.8rem, 3.2vw, 2.8rem);
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .wiki-intro-main h1 .cyan-accent {
            color: var(--cyan);
        }

        .wiki-intro-desc {
            color: var(--text-body);
            font-size: 1.02rem;
            max-width: 640px;
            line-height: 1.8;
        }

        .wiki-intro-side {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            position: relative;
            overflow: hidden;
        }

        .wiki-intro-side::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -30%;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.25), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .wiki-intro-side h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .wiki-intro-side h3::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--cyan);
            box-shadow: 0 0 8px var(--cyan);
        }

        .wiki-stat-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .wiki-stat-list li {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.9rem;
            color: var(--text-body);
            padding-bottom: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .wiki-stat-list li:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .wiki-stat-list .stat-num {
            font-family: var(--font-mono);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--cyan);
        }

        /* Tag cloud */
        .tag-cloud-section {
            padding: 28px 0 8px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-cloud .tag {
            display: inline-block;
            padding: 7px 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: var(--text-body);
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .tag-cloud .tag:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            background: rgba(0, 229, 255, 0.08);
            transform: translateY(-1px);
        }

        .tag-cloud .tag.highlight {
            background: rgba(0, 229, 255, 0.1);
            border-color: rgba(0, 229, 255, 0.4);
            color: var(--cyan);
        }

        /* Main entries: alternating large image + text */
        .entries-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .entry-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: center;
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: all var(--transition);
        }

        .entry-row:hover {
            border-color: var(--glass-border-hover);
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.12);
            transform: translateY(-2px);
        }

        .entry-row.reverse {
            direction: rtl;
        }

        .entry-row.reverse > * {
            direction: ltr;
        }

        .entry-image {
            position: relative;
            min-height: 240px;
            height: 100%;
            overflow: hidden;
            background: var(--bg-panel);
        }

        .entry-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 240px;
            transition: transform 0.5s ease;
        }

        .entry-row:hover .entry-image img {
            transform: scale(1.04);
        }

        .entry-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(7, 14, 26, 0.7) 100%);
            pointer-events: none;
        }

        .entry-image .entry-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 1;
            padding: 5px 12px;
            border-radius: 6px;
            background: rgba(7, 14, 26, 0.8);
            border: 1px solid rgba(0, 229, 255, 0.4);
            color: var(--cyan);
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .entry-content {
            padding: 28px 24px;
        }

        .entry-content .entry-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .entry-content .entry-meta span {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .entry-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.4;
            transition: color var(--transition);
        }

        .entry-row:hover .entry-content h3 {
            color: var(--cyan);
        }

        .entry-content p {
            font-size: 0.92rem;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .entry-data-bar {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }

        .entry-data-bar .data-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .entry-data-bar .data-item .data-value {
            font-family: var(--font-mono);
            font-weight: 700;
            color: var(--cyan);
            font-size: 0.9rem;
        }

        .entry-data-bar .data-bar {
            flex: 1;
            min-width: 80px;
            height: 4px;
            border-radius: 2px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
        }

        .entry-data-bar .data-bar .data-bar-fill {
            height: 100%;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--cyan), var(--violet-soft));
            transition: width 0.6s ease;
        }

        /* View more */
        .view-more-wrapper {
            display: flex;
            justify-content: center;
            padding: 28px 0 0;
        }

        .view-more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 10px;
            border: 1px solid rgba(0, 229, 255, 0.4);
            background: rgba(0, 229, 255, 0.06);
            color: var(--cyan);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
        }

        .view-more-link:hover {
            background: rgba(0, 229, 255, 0.14);
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.25);
            color: #fff;
            border-color: var(--cyan);
        }

        .view-more-link .arrow {
            display: inline-block;
            transition: transform var(--transition);
        }

        .view-more-link:hover .arrow {
            transform: translateX(4px);
        }

        /* Sidebar cards + mini data */
        .wiki-lower-grid {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }

        .mini-data-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .mini-data-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            padding: 18px;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            transition: all var(--transition);
        }

        .mini-data-card:hover {
            border-color: var(--glass-border-hover);
            transform: translateY(-2px);
        }

        .mini-data-card .md-label {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }

        .mini-data-card .md-value {
            font-family: var(--font-mono);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--cyan);
            line-height: 1.2;
        }

        .mini-data-card .md-note {
            font-size: 0.75rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .sidebar-widget {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-lg);
            padding: 24px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            position: relative;
            overflow: hidden;
        }

        .sidebar-widget::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -20%;
            width: 160px;
            height: 160px;
            background: radial-gradient(circle, rgba(124, 58, 237, 0.2), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .sidebar-widget h3 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            position: relative;
            z-index: 1;
        }

        .sidebar-widget h3::before {
            content: '';
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--violet-soft);
            box-shadow: 0 0 8px rgba(167, 139, 250, 0.6);
        }

        .sidebar-widget ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
            position: relative;
            z-index: 1;
        }

        .sidebar-widget ul li a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 9px 12px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.03);
            font-size: 0.88rem;
            color: var(--text-body);
            transition: all var(--transition);
        }

        .sidebar-widget ul li a:hover {
            background: rgba(0, 229, 255, 0.08);
            color: var(--cyan);
            transform: translateX(3px);
        }

        .sidebar-widget ul li a .link-arrow {
            font-size: 0.75rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }

        .sidebar-widget ul li a:hover .link-arrow {
            color: var(--cyan);
        }

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

        .recommend-card {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            transition: all var(--transition);
        }

        .recommend-card:hover {
            border-color: var(--glass-border-hover);
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
        }

        .recommend-card .rc-image {
            height: 140px;
            overflow: hidden;
            background: var(--bg-panel);
            position: relative;
        }

        .recommend-card .rc-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .recommend-card:hover .rc-image img {
            transform: scale(1.06);
        }

        .recommend-card .rc-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(7, 14, 26, 0.6) 100%);
            pointer-events: none;
        }

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

        .recommend-card .rc-body h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            line-height: 1.4;
            margin-bottom: 6px;
            transition: color var(--transition);
        }

        .recommend-card:hover .rc-body h4 {
            color: var(--cyan);
        }

        .recommend-card .rc-body p {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

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

        .cta-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            background: linear-gradient(135deg, rgba(0, 229, 255, 0.08), rgba(124, 58, 237, 0.12));
            border: 1px solid rgba(0, 229, 255, 0.28);
            border-radius: var(--radius-xl);
            padding: 32px 36px;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            flex-wrap: wrap;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -10%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.25), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-box .cta-text h3 {
            font-size: 1.3rem;
            font-weight: 650;
            color: #fff;
            margin-bottom: 6px;
        }

        .cta-box .cta-text p {
            font-size: 0.9rem;
            color: var(--text-body);
        }

        .cta-box .cta-actions {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 840px;
        }

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

        .faq-item:hover {
            border-color: rgba(0, 229, 255, 0.35);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            transition: color var(--transition);
            user-select: none;
            width: 100%;
            text-align: left;
            background: none;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: all var(--transition);
            position: relative;
        }

        .faq-question .faq-icon::before,
        .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            background: currentColor;
            border-radius: 1px;
            transition: transform var(--transition);
        }

        .faq-question .faq-icon::before {
            width: 10px;
            height: 2px;
        }

        .faq-question .faq-icon::after {
            width: 2px;
            height: 10px;
        }

        .faq-item.open .faq-question .faq-icon {
            border-color: var(--cyan);
            color: var(--cyan);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
        }

        .faq-item.open .faq-question .faq-icon::after {
            transform: scaleY(0);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease, padding 0.25s ease;
            padding: 0 20px;
            font-size: 0.88rem;
            color: var(--text-body);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 20px 18px;
        }

        /* Quick links */
        .quick-links-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
        }

        .quick-link-card {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 16px 18px;
            border-radius: var(--radius-md);
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            color: var(--text-body);
            font-size: 0.88rem;
            font-weight: 500;
            transition: all var(--transition);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .quick-link-card:hover {
            border-color: var(--cyan);
            color: #fff;
            background: rgba(0, 229, 255, 0.07);
            transform: translateY(-2px);
        }

        .quick-link-card .ql-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(0, 229, 255, 0.12);
            color: var(--cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            font-weight: 700;
        }

        /* Footer */
        .site-footer {
            background: rgba(7, 14, 26, 0.95);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 48px 0 24px;
            margin-top: 40px;
        }

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

        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-section h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .copyright {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-legal {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .footer-legal span {
            white-space: nowrap;
        }

        .footer-legal a {
            color: var(--text-muted);
            font-size: 0.8rem;
            white-space: nowrap;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .main-nav {
                gap: 0;
            }
            .main-nav a {
                padding: 8px 10px;
                font-size: 0.85rem;
            }
            .wiki-intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .wiki-lower-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .recommend-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .quick-links-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 36px;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                flex-wrap: wrap;
                gap: 10px;
                padding: 8px 0;
            }
            .main-nav {
                order: 3;
                flex-basis: 100%;
                overflow-x: auto;
                justify-content: flex-start;
                gap: 2px;
                padding: 4px 0 2px;
                -webkit-overflow-scrolling: touch;
            }
            .main-nav a {
                padding: 7px 10px;
                font-size: 0.8rem;
                white-space: nowrap;
            }
            .nav-cta .btn {
                padding: 7px 12px;
                font-size: 0.8rem;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-cta .btn-outline {
                display: none;
            }
            .entry-row,
            .entry-row.reverse {
                grid-template-columns: 1fr;
                direction: ltr;
            }
            .entry-row.reverse > * {
                direction: ltr;
            }
            .entry-image {
                min-height: 180px;
            }
            .entry-image img {
                min-height: 180px;
            }
            .entry-content {
                padding: 20px 18px;
            }
            .mini-data-cards {
                grid-template-columns: 1fr 1fr;
            }
            .recommend-grid {
                grid-template-columns: 1fr;
            }
            .quick-links-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .cta-box {
                padding: 24px 20px;
            }
            .breadcrumb-bar {
                padding: 12px 0 2px;
            }
        }

        @media (max-width: 520px) {
            .main-nav {
                gap: 0;
            }
            .main-nav a {
                padding: 6px 8px;
                font-size: 0.75rem;
            }
            .mini-data-cards {
                grid-template-columns: 1fr;
            }
            .quick-links-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .section-header h2 {
                font-size: 1.35rem;
            }
            .entry-content h3 {
                font-size: 1.1rem;
            }
            .announcement-inner {
                gap: 6px;
            }
            .chip {
                padding: 4px 10px;
                font-size: 0.75rem;
            }
        }

/* roulang page: category5 */
:root {
        --bg-deep: #070e1a;
        --bg-dark: #0a1628;
        --bg-panel: #0f2540;
        --cyan: #00e5ff;
        --cyan-soft: #00b4d8;
        --violet: #7c3aed;
        --violet-soft: #a78bfa;
        --text-main: rgba(233, 238, 245, 0.95);
        --text-body: rgba(233, 238, 245, 0.85);
        --text-muted: rgba(200, 210, 225, 0.62);
        --text-dark: #06121f;
        --glass-bg: rgba(255, 255, 255, 0.06);
        --glass-bg-hover: rgba(255, 255, 255, 0.1);
        --glass-border: rgba(255, 255, 255, 0.12);
        --glass-border-hover: rgba(0, 229, 255, 0.55);
        --radius-sm: 10px;
        --radius-md: 16px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --shadow-cyan: 0 0 18px rgba(0, 229, 255, 0.35);
        --shadow-cyan-lg: 0 0 32px rgba(0, 229, 255, 0.45);
        --shadow-dark: 0 18px 40px rgba(0, 0, 0, 0.45);
        --space-section: 72px;
        --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
        --font-mono: 'SF Mono', 'Cascadia Code', 'Roboto Mono', 'Consolas', monospace;
        --container-max: 1200px;
        --header-height: 72px;
        --transition: 0.25s ease;
    }

    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }

    body {
        font-family: var(--font-sans);
        background: var(--bg-deep);
        color: var(--text-main);
        line-height: 1.6;
        font-size: 16px;
        min-height: 100vh;
        overflow-x: hidden;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        background-image: radial-gradient(ellipse at 20% 10%, rgba(0, 229, 255, 0.06) 0%, transparent 55%), radial-gradient(ellipse at 80% 40%, rgba(124, 58, 237, 0.05) 0%, transparent 55%);
    }

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

    a {
        color: inherit;
        text-decoration: none;
        transition: color var(--transition);
    }

    a:hover {
        color: var(--cyan);
    }

    button, input, select, textarea {
        font-family: var(--font-sans);
        font-size: 16px;
        border: none;
        outline: none;
    }

    button {
        cursor: pointer;
        background: none;
    }

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

    /* Header */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(7, 14, 26, 0.92);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
        min-height: var(--header-height);
        padding: 10px 0;
    }

    .logo {
        flex-shrink: 0;
        font-size: 1.5rem;
        font-weight: 700;
        letter-spacing: 1px;
        color: #fff;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .logo-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: linear-gradient(135deg, var(--cyan), var(--violet));
        color: var(--text-dark);
        font-weight: 800;
        font-size: 1.1rem;
        flex-shrink: 0;
    }

    .main-nav {
        display: flex;
        align-items: center;
        gap: 2px;
        flex: 1;
        justify-content: center;
    }

    .main-nav a {
        padding: 8px 13px;
        border-radius: 8px;
        font-size: 0.93rem;
        font-weight: 500;
        color: var(--text-body);
        white-space: nowrap;
        position: relative;
        transition: all var(--transition);
    }

    .main-nav a:hover {
        color: #fff;
        background: rgba(255, 255, 255, 0.05);
    }

    .main-nav a.active {
        color: var(--cyan);
        background: rgba(0, 229, 255, 0.08);
    }

    .nav-cta {
        flex-shrink: 0;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 10px 20px;
        border-radius: 10px;
        font-size: 0.95rem;
        font-weight: 600;
        transition: all var(--transition);
        white-space: nowrap;
        line-height: 1.2;
    }

    .btn-sm {
        padding: 7px 14px;
        font-size: 0.88rem;
        border-radius: 8px;
    }

    .btn-primary {
        background: var(--cyan);
        color: var(--text-dark);
        box-shadow: var(--shadow-cyan);
    }

    .btn-primary:hover {
        background: #33ebff;
        box-shadow: var(--shadow-cyan-lg);
        transform: translateY(-1px);
        color: var(--text-dark);
    }

    .btn-primary:active {
        transform: translateY(0);
        box-shadow: 0 0 10px rgba(0, 229, 255, 0.25);
    }

    .btn-outline {
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.18);
        color: #fff;
    }

    .btn-outline:hover {
        border-color: var(--cyan);
        box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
        color: var(--cyan);
    }

    .nav-toggle {
        display: none;
        flex-direction: column;
        gap: 5px;
        width: 38px;
        height: 38px;
        align-items: center;
        justify-content: center;
        border-radius: 8px;
        border: 1px solid rgba(255, 255, 255, 0.15);
        background: rgba(255, 255, 255, 0.04);
        transition: all var(--transition);
    }

    .nav-toggle span {
        display: block;
        width: 18px;
        height: 2px;
        background: var(--text-main);
        border-radius: 2px;
        transition: all var(--transition);
    }

    .nav-toggle:hover {
        border-color: var(--cyan);
    }

    .announcement-bar {
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        padding: 8px 0;
        background: rgba(10, 22, 40, 0.7);
    }

    .announcement-inner {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        align-items: center;
    }

    .chip {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 5px 14px;
        border-radius: 20px;
        background: rgba(0, 229, 255, 0.08);
        border: 1px solid rgba(0, 229, 255, 0.35);
        color: var(--cyan);
        font-size: 0.85rem;
        font-weight: 500;
        transition: all var(--transition);
    }

    .chip:hover {
        background: rgba(0, 229, 255, 0.16);
        border-color: rgba(0, 229, 255, 0.65);
        color: #fff;
    }

    .announcement-dot {
        width: 7px;
        height: 7px;
        border-radius: 50%;
        background: var(--cyan);
        box-shadow: 0 0 8px var(--cyan);
        flex-shrink: 0;
    }

    .breadcrumb {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 6px;
        font-size: 0.9rem;
        color: var(--text-muted);
        margin-bottom: 10px;
    }

    .breadcrumb a {
        color: var(--text-muted);
        transition: color var(--transition);
    }

    .breadcrumb a:hover {
        color: var(--cyan);
    }

    .breadcrumb .sep {
        color: rgba(200, 210, 225, 0.35);
        user-select: none;
    }

    .breadcrumb .current {
        color: var(--cyan);
        font-weight: 500;
    }

    .page-heading {
        padding: 48px 0 28px;
        position: relative;
    }

    .page-heading-inner {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 36px;
        align-items: center;
    }

    .page-heading-title {
        font-size: clamp(1.8rem, 3.4vw, 2.6rem);
        font-weight: 700;
        line-height: 1.25;
        color: #fff;
        margin-bottom: 12px;
    }

    .page-heading-title .accent {
        color: var(--cyan);
        text-shadow: 0 0 18px rgba(0, 229, 255, 0.35);
    }

    .page-heading-desc {
        font-size: 1.02rem;
        color: var(--text-body);
        line-height: 1.75;
        max-width: 600px;
    }

    .page-heading-visual {
        position: relative;
        min-height: 180px;
        border-radius: var(--radius-lg);
        overflow: hidden;
        background: linear-gradient(135deg, #0a1628 0%, #0f2540 50%, rgba(0, 229, 255, 0.12) 100%);
        border: 1px solid rgba(255, 255, 255, 0.1);
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .page-heading-visual::before {
        content: '';
        position: absolute;
        top: -40%;
        right: -20%;
        width: 300px;
        height: 300px;
        background: radial-gradient(circle, rgba(0, 229, 255, 0.25) 0%, transparent 65%);
        pointer-events: none;
    }

    .page-heading-visual-inner {
        position: relative;
        text-align: center;
        padding: 24px;
    }

    .page-heading-visual-label {
        font-size: 0.8rem;
        text-transform: uppercase;
        letter-spacing: 2px;
        color: var(--cyan);
        margin-bottom: 16px;
        font-weight: 600;
    }

    .page-heading-visual-number {
        font-size: 3rem;
        font-weight: 700;
        font-family: var(--font-mono);
        color: #fff;
        line-height: 1;
        margin-bottom: 8px;
        text-shadow: 0 0 24px rgba(0, 229, 255, 0.4);
    }

    .page-heading-visual-caption {
        font-size: 0.92rem;
        color: var(--text-muted);
    }

    .section {
        padding: var(--space-section) 0;
    }

    .section-alt {
        background: rgba(10, 22, 40, 0.5);
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .section-header {
        display: flex;
        align-items: flex-end;
        justify-content: space-between;
        gap: 20px;
        margin-bottom: 28px;
    }

    .section-title {
        font-size: clamp(1.5rem, 2.4vw, 2rem);
        font-weight: 650;
        line-height: 1.3;
        color: #fff;
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .section-title::before {
        content: '';
        width: 4px;
        height: 28px;
        background: var(--cyan);
        border-radius: 2px;
        box-shadow: 0 0 12px rgba(0, 229, 255, 0.45);
    }

    .section-sub {
        font-size: 0.95rem;
        color: var(--text-muted);
        max-width: 420px;
        text-align: right;
    }

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

    .data-strip-card {
        background: var(--glass-bg);
        border: 1px solid var(--glass-border);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-radius: var(--radius-md);
        padding: 20px 22px;
        transition: all var(--transition);
        position: relative;
        overflow: hidden;
    }

    .data-strip-card::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--cyan), var(--violet));
        border-radius: 0 0 var(--radius-md) var(--radius-md);
        opacity: 0;
        transition: opacity var(--transition);
    }

    .data-strip-card:hover {
        background: var(--glass-bg-hover);
        border-color: var(--glass-border-hover);
        transform: translateY(-2px);
    }

    .data-strip-card:hover::after {
        opacity: 1;
    }

    .data-strip-value {
        font-size: 1.75rem;
        font-weight: 700;
        font-family: var(--font-mono);
        color: var(--cyan);
        line-height: 1.2;
        margin-bottom: 6px;
        letter-spacing: -0.5px;
    }

    .data-strip-unit {
        font-size: 0.85rem;
        color: var(--text-muted);
        margin-left: 4px;
        font-weight: 400;
        letter-spacing: 0;
    }

    .data-strip-label {
        font-size: 0.9rem;
        color: var(--text-body);
        line-height: 1.4;
    }

    .filter-toolbar {
        background: var(--glass-bg);
        border: 1px solid var(--glass-border);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-radius: var(--radius-md);
        padding: 14px 18px;
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        align-items: center;
        justify-content: space-between;
    }

    .filter-group {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        align-items: center;
    }

    .filter-tag {
        padding: 6px 14px;
        border-radius: 16px;
        font-size: 0.85rem;
        color: var(--text-muted);
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
        transition: all var(--transition);
        white-space: nowrap;
        cursor: pointer;
    }

    .filter-tag:hover, .filter-tag.active {
        color: var(--cyan);
        border-color: rgba(0, 229, 255, 0.5);
        background: rgba(0, 229, 255, 0.1);
    }

    .filter-search {
        flex: 1;
        min-width: 160px;
        max-width: 280px;
    }

    .filter-search input {
        width: 100%;
        padding: 8px 14px;
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.14);
        color: var(--text-main);
        font-size: 0.9rem;
        transition: all var(--transition);
    }

    .filter-search input::placeholder {
        color: var(--text-muted);
    }

    .filter-search input:focus {
        border-color: var(--cyan);
        box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.12);
    }

    .featured-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        margin-bottom: 32px;
    }

    .featured-card {
        background: var(--glass-bg);
        border: 1px solid var(--glass-border);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: all var(--transition);
        display: flex;
        flex-direction: column;
    }

    .featured-card:hover {
        border-color: var(--glass-border-hover);
        transform: translateY(-3px);
        box-shadow: var(--shadow-dark);
    }

    .featured-card-image {
        height: 180px;
        overflow: hidden;
        position: relative;
    }

    .featured-card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform var(--transition);
    }

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

    .featured-card-image::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(to bottom, rgba(7, 14, 26, 0.1) 0%, rgba(7, 14, 26, 0.65) 100%);
        pointer-events: none;
    }

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

    .featured-card-tag {
        display: inline-block;
        font-size: 0.75rem;
        font-weight: 600;
        color: var(--cyan);
        background: rgba(0, 229, 255, 0.1);
        border: 1px solid rgba(0, 229, 255, 0.3);
        padding: 3px 10px;
        border-radius: 12px;
        margin-bottom: 10px;
        align-self: flex-start;
    }

    .featured-card-title {
        font-size: 1.2rem;
        font-weight: 600;
        color: #fff;
        line-height: 1.4;
        margin-bottom: 8px;
    }

    .featured-card-excerpt {
        font-size: 0.92rem;
        color: var(--text-body);
        line-height: 1.65;
        flex: 1;
    }

    .featured-card-meta {
        display: flex;
        gap: 14px;
        margin-top: 14px;
        font-size: 0.82rem;
        color: var(--text-muted);
        padding-top: 12px;
        border-top: 1px solid rgba(255, 255, 255, 0.07);
    }

    .layout-split {
        display: grid;
        grid-template-columns: 1.5fr 0.7fr;
        gap: 28px;
        align-items: start;
    }

    .timeline-list {
        list-style: none;
        padding: 0;
        margin: 0;
        position: relative;
    }

    .timeline-list::before {
        content: '';
        position: absolute;
        left: 7px;
        top: 4px;
        bottom: 4px;
        width: 2px;
        background: linear-gradient(to bottom, rgba(0, 229, 255, 0.5), rgba(0, 229, 255, 0.1) 70%, rgba(255, 255, 255, 0.05));
        border-radius: 2px;
    }

    .timeline-item {
        position: relative;
        padding-left: 34px;
        padding-bottom: 22px;
    }

    .timeline-item:last-child {
        padding-bottom: 0;
    }

    .timeline-item::before {
        content: '';
        position: absolute;
        left: 0;
        top: 6px;
        width: 16px;
        height: 16px;
        border-radius: 50%;
        background: #0f2540;
        border: 2px solid var(--cyan);
        box-shadow: 0 0 12px rgba(0, 229, 255, 0.4);
        z-index: 1;
    }

    .timeline-item-title {
        font-size: 1.02rem;
        font-weight: 600;
        color: #fff;
        line-height: 1.45;
        margin-bottom: 4px;
        transition: color var(--transition);
    }

    .timeline-item-title a:hover {
        color: var(--cyan);
    }

    .timeline-item-excerpt {
        font-size: 0.9rem;
        color: var(--text-muted);
        line-height: 1.55;
        margin-bottom: 6px;
    }

    .timeline-item-meta {
        display: flex;
        gap: 12px;
        font-size: 0.8rem;
        color: rgba(200, 210, 225, 0.45);
    }

    .timeline-item-date {
        font-weight: 500;
    }

    .timeline-item-category {
        color: var(--cyan);
        font-weight: 500;
    }

    .sidebar-widget {
        background: var(--glass-bg);
        border: 1px solid var(--glass-border);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-radius: var(--radius-md);
        padding: 20px;
        margin-bottom: 20px;
    }

    .sidebar-widget:last-child {
        margin-bottom: 0;
    }

    .sidebar-widget-title {
        font-size: 1rem;
        font-weight: 600;
        color: #fff;
        margin-bottom: 14px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .sidebar-widget-title::before {
        content: '';
        width: 3px;
        height: 16px;
        background: var(--cyan);
        border-radius: 2px;
        box-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
    }

    .trend-card {
        padding: 14px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    }

    .trend-card:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }

    .trend-card-value {
        font-size: 1.15rem;
        font-weight: 700;
        font-family: var(--font-mono);
        color: var(--cyan);
        margin-bottom: 4px;
    }

    .trend-card-label {
        font-size: 0.88rem;
        color: var(--text-body);
        line-height: 1.45;
    }

    .trend-card-change {
        font-size: 0.8rem;
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 4px;
        margin-top: 4px;
    }

    .trend-card-change.up {
        color: #00d68f;
    }

    .trend-card-change.down {
        color: #ff6b6b;
    }

    .view-more-wrapper {
        margin-top: 24px;
    }

    .view-more-link {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 24px;
        border-radius: 10px;
        border: 1px solid rgba(255, 255, 255, 0.15);
        background: rgba(255, 255, 255, 0.05);
        color: var(--text-main);
        font-weight: 500;
        font-size: 0.92rem;
        transition: all var(--transition);
    }

    .view-more-link:hover {
        border-color: var(--cyan);
        color: var(--cyan);
        background: rgba(0, 229, 255, 0.06);
        box-shadow: 0 0 14px rgba(0, 229, 255, 0.18);
    }

    .quick-links {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 12px;
    }

    .quick-link-card {
        background: var(--glass-bg);
        border: 1px solid var(--glass-border);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-radius: var(--radius-sm);
        padding: 16px 18px;
        transition: all var(--transition);
        text-align: center;
    }

    .quick-link-card:hover {
        border-color: var(--glass-border-hover);
        background: var(--glass-bg-hover);
        transform: translateY(-2px);
    }

    .quick-link-card span {
        display: block;
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--text-body);
    }

    .quick-link-card:hover span {
        color: var(--cyan);
    }

    .cta-block {
        background: linear-gradient(135deg, rgba(10, 22, 40, 0.9) 0%, rgba(15, 37, 64, 0.95) 100%);
        border: 1px solid rgba(0, 229, 255, 0.2);
        border-radius: var(--radius-xl);
        padding: 36px 32px;
        display: grid;
        grid-template-columns: 0.9fr 1.1fr;
        gap: 28px;
        align-items: center;
        position: relative;
        overflow: hidden;
    }

    .cta-block::before {
        content: '';
        position: absolute;
        top: -50%;
        left: -20%;
        width: 400px;
        height: 400px;
        background: radial-gradient(circle, rgba(0, 229, 255, 0.12) 0%, transparent 60%);
        pointer-events: none;
    }

    .cta-block-title {
        font-size: 1.3rem;
        font-weight: 650;
        color: #fff;
        line-height: 1.4;
        margin-bottom: 8px;
    }

    .cta-block-desc {
        font-size: 0.95rem;
        color: var(--text-body);
        line-height: 1.65;
    }

    .cta-form {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .cta-form input, .cta-form select {
        flex: 1;
        min-width: 140px;
        padding: 12px 16px;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.14);
        color: var(--text-main);
        font-size: 0.92rem;
        transition: all var(--transition);
    }

    .cta-form input:focus, .cta-form select:focus {
        border-color: var(--cyan);
        box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
    }

    .cta-form select {
        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='rgba(200,210,225,0.6)' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 14px center;
        padding-right: 36px;
    }

    .cta-form select option {
        background: #0a1628;
        color: var(--text-main);
    }

    .cta-form .btn-primary {
        flex-shrink: 0;
        padding: 12px 28px;
    }

    .footer {
        background: #060b14;
        border-top: 1px solid rgba(255, 255, 255, 0.07);
        padding: 48px 0 28px;
        margin-top: 40px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.2fr 0.7fr 0.7fr 0.7fr;
        gap: 28px;
        margin-bottom: 32px;
    }

    .footer-logo {
        font-size: 1.25rem;
        font-weight: 700;
        color: #fff;
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 12px;
    }

    .footer-logo .logo-icon {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
        border-radius: 8px;
    }

    .footer-desc {
        font-size: 0.9rem;
        color: var(--text-muted);
        line-height: 1.7;
        max-width: 300px;
    }

    .footer-section h4 {
        font-size: 0.95rem;
        font-weight: 600;
        color: #fff;
        margin-bottom: 14px;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 8px;
    }

    .footer-links a {
        font-size: 0.88rem;
        color: var(--text-muted);
        transition: color var(--transition);
    }

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

    .footer-bottom {
        display: flex;
        flex-wrap: wrap;
        gap: 10px 20px;
        align-items: center;
        justify-content: space-between;
        padding-top: 20px;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        font-size: 0.82rem;
        color: var(--text-muted);
    }

    .footer-legal {
        display: flex;
        flex-wrap: wrap;
        gap: 10px 18px;
        align-items: center;
    }

    .footer-legal a {
        color: var(--text-muted);
        transition: color var(--transition);
    }

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

    .btn:focus-visible, .main-nav a:focus-visible, .filter-tag:focus-visible, .view-more-link:focus-visible, .quick-link-card:focus-visible {
        outline: 2px solid var(--cyan);
        outline-offset: 2px;
    }

    /* Featured card image placeholder if no img */
    .featured-card-image.placeholder-img {
        background: linear-gradient(135deg, #0f2540 0%, #1a3a5c 40%, rgba(0, 229, 255, 0.18) 100%);
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .featured-card-image.placeholder-img::after {
        content: '亿电竞行业观察';
        position: relative;
        background: none;
        color: rgba(255, 255, 255, 0.6);
        font-weight: 600;
        letter-spacing: 2px;
        font-size: 1.1rem;
    }

    /* Responsive */
    @media (max-width: 1024px) {
        .header-inner {
            gap: 12px;
        }
        .main-nav a {
            padding: 7px 9px;
            font-size: 0.85rem;
        }
        .nav-cta .btn {
            padding: 7px 12px;
            font-size: 0.82rem;
        }
        .data-strip {
            grid-template-columns: repeat(2, 1fr);
        }
        .layout-split {
            grid-template-columns: 1.2fr 0.8fr;
            gap: 20px;
        }
        .quick-links {
            grid-template-columns: repeat(2, 1fr);
        }
        .cta-block {
            grid-template-columns: 1fr;
            gap: 18px;
        }
    }

    @media (max-width: 768px) {
        :root {
            --space-section: 48px;
        }
        .nav-cta .btn {
            display: none;
        }
        .nav-toggle {
            display: flex;
        }
        .main-nav {
            display: none;
            position: absolute;
            top: calc(100% + 0px);
            left: 0;
            right: 0;
            background: rgba(7, 14, 26, 0.98);
            flex-direction: column;
            align-items: stretch;
            padding: 12px 24px 16px;
            gap: 4px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
        }
        .main-nav.open {
            display: flex;
        }
        .main-nav a {
            padding: 12px 14px;
            font-size: 1rem;
            border-radius: 8px;
            width: 100%;
            text-align: left;
        }
        .page-heading-inner {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .page-heading-visual {
            min-height: 140px;
        }
        .data-strip {
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .data-strip-card {
            padding: 14px 16px;
        }
        .data-strip-value {
            font-size: 1.3rem;
        }
        .filter-toolbar {
            flex-direction: column;
            align-items: stretch;
        }
        .filter-search {
            max-width: none;
            width: 100%;
        }
        .filter-group {
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            padding-bottom: 4px;
        }
        .featured-grid {
            grid-template-columns: 1fr;
            gap: 16px;
        }
        .layout-split {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .quick-links {
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        .quick-link-card {
            padding: 14px 12px;
        }
        .cta-block {
            padding: 24px 18px;
            border-radius: var(--radius-lg);
        }
        .cta-form {
            flex-direction: column;
        }
        .cta-form input, .cta-form select {
            width: 100%;
            min-width: 0;
        }
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
        }
        .section-header {
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
        }
        .section-sub {
            text-align: left;
            max-width: 100%;
        }
    }

    @media (max-width: 520px) {
        .container {
            padding: 0 16px;
        }
        .data-strip {
            grid-template-columns: 1fr 1fr;
            gap: 8px;
        }
        .data-strip-card {
            padding: 12px 14px;
        }
        .data-strip-value {
            font-size: 1.15rem;
        }
        .data-strip-label {
            font-size: 0.8rem;
        }
        .quick-links {
            grid-template-columns: 1fr;
        }
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 18px;
        }
        .page-heading {
            padding: 32px 0 20px;
        }
        .page-heading-title {
            font-size: 1.5rem;
        }
        .breadcrumb {
            font-size: 0.8rem;
        }
        .featured-card-image {
            height: 140px;
        }
        .timeline-item {
            padding-left: 28px;
        }
    }

/* roulang page: category6 */
:root {
  --bg-deep: #070e1a;
  --bg-dark: #0a1628;
  --bg-panel: #0f2540;
  --cyan: #00e5ff;
  --cyan-soft: #00b4d8;
  --violet: #7c3aed;
  --violet-soft: #a78bfa;
  --text-main: rgba(233, 238, 245, 0.95);
  --text-body: rgba(233, 238, 245, 0.85);
  --text-muted: rgba(200, 210, 225, 0.62);
  --text-dark: #06121f;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-bg-hover: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-border-hover: rgba(0, 229, 255, 0.55);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-cyan: 0 0 18px rgba(0, 229, 255, 0.35);
  --shadow-cyan-lg: 0 0 32px rgba(0, 229, 255, 0.45);
  --shadow-dark: 0 18px 40px rgba(0, 0, 0, 0.45);
  --space-section: 72px;
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Roboto Mono', 'Consolas', monospace;
  --container-max: 1200px;
  --header-height: 72px;
  --transition: 0.25s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition), transform var(--transition);
}

a:hover {
  color: var(--cyan);
}

button, input, select, textarea {
  font-family: var(--font-sans);
  font-size: 16px;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
  background: none;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 14, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: var(--header-height);
  padding: 12px 0;
}

.logo {
  flex-shrink: 0;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  color: var(--text-dark);
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
}

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

.main-nav a {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-body);
  white-space: nowrap;
  position: relative;
  transition: all var(--transition);
}

.main-nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.main-nav a.active {
  color: var(--cyan);
  background: rgba(0, 229, 255, 0.08);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.2;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--cyan);
  color: var(--text-dark);
  box-shadow: var(--shadow-cyan);
}

.btn-primary:hover {
  background: #33ebff;
  box-shadow: var(--shadow-cyan-lg);
  transform: translateY(-1px);
  color: var(--text-dark);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.25);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
}

.btn-outline:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.25);
  color: var(--cyan);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
  border-radius: 8px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.05rem;
  border-radius: 12px;
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text-body);
}

.btn-ghost:hover {
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.06);
  color: var(--cyan);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  transition: all var(--transition);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle:hover {
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.06);
}

.announcement-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(10, 22, 40, 0.65);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.announcement-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  min-width: max-content;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.45);
  color: var(--cyan);
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--transition);
}

.chip:hover {
  background: rgba(0, 229, 255, 0.16);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.18);
  color: #fff;
}

.announcement-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

/* Breadcrumb */
.breadcrumb-wrap {
  padding: 20px 0 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: var(--cyan);
}

.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.3);
}

.breadcrumb .current {
  color: var(--cyan);
  font-weight: 500;
}

/* Category Hero */
.category-hero {
  padding: 28px 0 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.category-hero-content {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

.category-hero h1 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
  letter-spacing: 0.5px;
  position: relative;
  padding-left: 18px;
}

.category-hero h1::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 60%;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.35);
}

.category-desc {
  max-width: 560px;
  color: var(--text-body);
  font-size: 0.98rem;
  line-height: 1.7;
}

/* Filter bar */
.filter-bar {
  padding: 24px 0 8px;
}

.filter-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.filter-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
  flex-shrink: 0;
}

.filter-tag {
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-body);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.filter-tag:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 229, 255, 0.06);
}

.filter-tag.active {
  border-color: var(--cyan);
  color: var(--text-dark);
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.25);
}

/* Main content area */
.news-main {
  padding: 32px 0 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 32px;
  align-items: start;
}

.news-list-wrap {
  min-width: 0;
}

.news-list-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.news-list-title::before {
  content: '';
  width: 3px;
  height: 18px;
  border-radius: 3px;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
}

.news-card {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 20px;
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  margin-bottom: 16px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.news-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: rgba(0, 229, 255, 0.25);
  border-radius: 3px 0 0 3px;
  transition: background var(--transition);
}

.news-card:hover {
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.35);
}

.news-card:hover::before {
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.45);
}

.news-card-img {
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #0f2540, #1a3a5c);
  position: relative;
}

.news-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

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

.news-card-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.news-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 10px;
}

.news-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  background: rgba(0, 229, 255, 0.1);
  color: var(--cyan);
  border: 1px solid rgba(0, 229, 255, 0.35);
}

.news-tag.violet {
  background: rgba(124, 58, 237, 0.15);
  color: var(--violet-soft);
  border-color: rgba(124, 58, 237, 0.4);
}

.news-tag.warm {
  background: rgba(255, 180, 50, 0.12);
  color: #ffc96b;
  border-color: rgba(255, 180, 50, 0.35);
}

.news-date {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.news-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.45;
  color: #fff;
  margin-bottom: 8px;
  transition: color var(--transition);
  cursor: pointer;
}

.news-card h3:hover {
  color: var(--cyan);
}

.news-card-excerpt {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.news-card-link {
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* Load more */
.load-more-wrap {
  text-align: center;
  padding: 12px 0 8px;
}

.load-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--cyan);
  background: rgba(0, 229, 255, 0.06);
  border: 1px solid rgba(0, 229, 255, 0.35);
  transition: all var(--transition);
}

.load-more-btn:hover {
  background: rgba(0, 229, 255, 0.14);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.2);
  color: #fff;
}

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

.hidden-news {
  display: none;
}

.hidden-news.show {
  display: grid;
}

/* Sidebar */
.news-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: calc(var(--header-height) + 40px);
}

.sidebar-card {
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.sidebar-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-card h4::before {
  content: '';
  width: 3px;
  height: 14px;
  border-radius: 3px;
  background: var(--violet);
  box-shadow: 0 0 8px rgba(124, 58, 237, 0.4);
}

.mini-stat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.mini-stat:last-child {
  border-bottom: none;
}

.mini-stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.mini-stat-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--cyan);
  font-family: var(--font-mono);
}

.mini-stat-value.violet {
  color: var(--violet-soft);
}

.sidebar-link-item {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.88rem;
  color: var(--text-body);
  line-height: 1.5;
  transition: all var(--transition);
}

.sidebar-link-item:last-child {
  border-bottom: none;
}

.sidebar-link-item:hover {
  color: var(--cyan);
  padding-left: 6px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-cloud .tag {
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  color: var(--text-body);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.14);
  cursor: pointer;
  transition: all var(--transition);
}

.tag-cloud .tag:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 229, 255, 0.06);
}

/* Featured topics */
.featured-topics {
  padding: 16px 0 48px;
}

.section-heading {
  margin-bottom: 24px;
}

.section-heading h2 {
  font-size: clamp(1.35rem, 2.2vw, 1.8rem);
  font-weight: 650;
  color: #fff;
  letter-spacing: 0.5px;
  position: relative;
  padding-left: 18px;
}

.section-heading h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 55%;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.3);
}

.section-heading p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 8px;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.featured-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: all var(--transition);
  position: relative;
}

.featured-card:hover {
  border-color: var(--glass-border-hover);
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.35);
}

.featured-card-img {
  aspect-ratio: 16/10;
  overflow: hidden;
  background: linear-gradient(135deg, #0f2540, #1a3a5c);
}

.featured-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

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

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

.featured-card-body h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 6px;
  line-height: 1.45;
}

.featured-card-body p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Data insight section */
.data-insight {
  padding: 16px 0 48px;
}

.insight-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.insight-card {
  padding: 22px 24px;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.insight-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.insight-card:hover {
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
  transform: translateY(-2px);
}

.insight-card:hover::after {
  opacity: 1;
}

.insight-card .insight-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.25);
  margin-bottom: 14px;
  color: var(--cyan);
  font-size: 1.2rem;
}

.insight-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
}

.insight-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Subscribe CTA */
.subscribe-cta {
  padding: 40px 0 56px;
}

.cta-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 36px 40px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.06), rgba(124, 58, 237, 0.08)), var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.12), transparent 70%);
  pointer-events: none;
}

.cta-card-content {
  flex: 1;
  min-width: 280px;
}

.cta-card-content h2 {
  font-size: 1.4rem;
  font-weight: 650;
  color: #fff;
  margin-bottom: 10px;
}

.cta-card-content p {
  color: var(--text-body);
  font-size: 0.92rem;
  line-height: 1.7;
  max-width: 500px;
}

.cta-form {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.cta-form input {
  padding: 12px 18px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--text-main);
  font-size: 0.92rem;
  min-width: 260px;
  transition: all var(--transition);
}

.cta-form input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
}

.cta-form input::placeholder {
  color: var(--text-muted);
}

/* FAQ */
.faq-section {
  padding: 16px 0 48px;
}

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

.faq-item {
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: all var(--transition);
  overflow: hidden;
}

.faq-item:hover {
  border-color: rgba(0, 229, 255, 0.3);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  text-align: left;
  color: var(--text-main);
  font-size: 0.98rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  background: transparent;
}

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

.faq-icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--cyan);
  font-size: 1.1rem;
  font-weight: 400;
  transition: all var(--transition);
}

.faq-item.open .faq-icon {
  background: var(--cyan);
  color: var(--text-dark);
  transform: rotate(45deg);
}

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

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 22px 18px;
}

.faq-answer p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* Quick links */
.quick-links-section {
  padding: 16px 0 56px;
}

.quick-links-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.quick-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-body);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  transition: all var(--transition);
}

.quick-link:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.15);
}

/* Footer */
.site-footer {
  background: rgba(7, 14, 26, 0.9);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 56px 0 24px;
  margin-top: 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}

.footer-brand {
  min-width: 0;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
}

.footer-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 320px;
}

.footer-section h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 14px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: all var(--transition);
}

.footer-links a:hover {
  color: var(--cyan);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.copyright {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.footer-legal a {
  color: var(--text-muted);
  transition: color var(--transition);
}

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

/* Responsive */
@media (max-width: 1024px) {
  :root {
    --space-section: 56px;
  }
  .main-nav {
    gap: 0;
  }
  .main-nav a {
    padding: 8px 10px;
    font-size: 0.88rem;
  }
  .news-main {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 24px;
  }
  .news-card {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 16px;
  }
  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .insight-cards {
    grid-template-columns: repeat(3, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 44px;
    --header-height: 64px;
  }
  .container {
    padding: 0 16px;
  }
  .header-inner {
    flex-wrap: wrap;
    gap: 12px;
    padding: 10px 0;
  }
  .main-nav {
    display: none;
    order: 10;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    background: rgba(7, 14, 26, 0.98);
    border-radius: var(--radius-sm);
    padding: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
  .main-nav.mobile-open {
    display: flex;
  }
  .main-nav a {
    padding: 12px 16px;
    font-size: 0.95rem;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-cta {
    flex: 1;
    justify-content: flex-end;
  }
  .nav-cta .btn {
    padding: 8px 12px;
    font-size: 0.78rem;
  }
  .announcement-inner {
    gap: 8px;
  }
  .chip {
    padding: 4px 10px;
    font-size: 0.72rem;
  }
  .category-hero-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .category-desc {
    font-size: 0.9rem;
  }
  .news-main {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 24px 0 40px;
  }
  .news-sidebar {
    position: static;
    flex-direction: column;
  }
  .news-card {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 14px;
  }
  .news-card-img {
    aspect-ratio: 16/9;
  }
  .news-card h3 {
    font-size: 1rem;
  }
  .news-card-excerpt {
    font-size: 0.85rem;
  }
  .filter-inner {
    padding: 12px 14px;
    gap: 8px;
  }
  .filter-tag {
    padding: 5px 12px;
    font-size: 0.75rem;
  }
  .featured-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .insight-cards {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }
  .insight-card {
    padding: 18px;
  }
  .cta-card {
    padding: 28px 24px;
    flex-direction: column;
    text-align: left;
  }
  .cta-form {
    width: 100%;
  }
  .cta-form input {
    min-width: 100%;
  }
  .cta-form .btn {
    width: 100%;
  }
  .quick-link {
    padding: 8px 16px;
    font-size: 0.8rem;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .footer-legal {
    gap: 10px;
    flex-wrap: wrap;
  }
}

@media (max-width: 520px) {
  .insight-cards {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .category-hero h1 {
    font-size: 1.5rem;
  }
  .nav-cta .btn-outline {
    display: none;
  }
  .btn-sm {
    padding: 8px 12px;
    font-size: 0.78rem;
  }
  .cta-card-content h2 {
    font-size: 1.2rem;
  }
  .faq-question {
    padding: 14px 16px;
    font-size: 0.9rem;
  }
  .faq-answer {
    padding: 0 16px;
  }
  .faq-item.open .faq-answer {
    padding: 0 16px 14px;
  }
}