/* roulang page: index */
:root {
            --bg: #0E1116;
            --surface: #171D26;
            --surface-2: #1F2834;
            --border: #2C3848;
            --border-strong: #3A4A5E;
            --primary: #E5484D;
            --primary-hover: #FF6B70;
            --secondary: #FFB224;
            --accent: #2DD4BF;
            --text: #F4F7FB;
            --muted: #9BA8BA;
            --danger: #F87171;
            --success: #34D399;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 18px 45px rgba(0, 0, 0, 0.45);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
            --font-mono: "JetBrains Mono", "SFMono-Regular", "Consolas", monospace;
            --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 1rem;
            overflow-x: hidden;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition);
        }

        a:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .mono-num {
            font-family: var(--font-mono);
            font-weight: 600;
        }

        /* Header/Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .nav-container {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
            flex-wrap: nowrap;
            min-height: 64px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.01em;
        }

        .nav-logo:hover {
            color: var(--primary-hover);
            text-decoration: none;
        }

        .nav-logo-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), #b9333a);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-channels::-webkit-scrollbar {
            display: none;
        }

        .nav-channel {
            display: inline-flex;
            align-items: center;
            padding: 0.4rem 0.75rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            white-space: nowrap;
            transition: color var(--transition), background-color var(--transition);
            flex-shrink: 0;
        }

        .nav-channel:hover {
            color: var(--text);
            background-color: var(--surface-2);
            text-decoration: none;
        }

        .nav-channel.active {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
            border-radius: 0;
            padding-bottom: 0.25rem;
            margin-bottom: -0.25rem;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            padding: 0.35rem 0.8rem;
            gap: 0.5rem;
            width: 210px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
        }

        .nav-search input {
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 0.875rem;
            width: 100%;
            outline: none;
        }

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

        .nav-search-icon {
            color: var(--muted);
            flex-shrink: 0;
            font-size: 0.8rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.55rem 1.25rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            white-space: nowrap;
            line-height: 1.4;
            text-decoration: none;
        }

        .btn:hover {
            text-decoration: none;
        }

        .btn:focus-visible {
            outline: none;
            box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.35);
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-1px);
        }

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

        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-1px);
        }

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

        .btn-highlight {
            background: linear-gradient(135deg, var(--primary), #FF6B70);
            color: #fff;
            box-shadow: 0 4px 14px rgba(229, 72, 77, 0.3);
        }

        .btn-highlight:hover {
            background: linear-gradient(135deg, var(--primary-hover), #FF8589);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(229, 72, 77, 0.4);
        }

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

        .btn-sm {
            padding: 0.4rem 0.85rem;
            font-size: 0.8rem;
            border-radius: 8px;
        }

        .btn .arrow {
            font-size: 0.7rem;
            transition: transform var(--transition);
        }

        .btn:hover .arrow {
            transform: translateX(3px);
        }

        .hamburger {
            display: none;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 8px;
            padding: 0.4rem 0.6rem;
            cursor: pointer;
            color: var(--text);
            font-size: 1.2rem;
            line-height: 1;
            flex-shrink: 0;
            transition: border-color var(--transition);
        }

        .hamburger:hover {
            border-color: var(--accent);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 1rem;
            padding: 0.5rem 1rem 1rem;
            background-color: var(--surface);
            border-top: 1px solid var(--border);
        }

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

        .mobile-menu .nav-channel {
            display: block;
            padding: 0.6rem 0.75rem;
            border-radius: 8px;
            font-size: 0.95rem;
        }

        .mobile-menu .nav-actions-mobile {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            margin-top: 0.5rem;
        }

        .mobile-menu .nav-search {
            width: 100%;
        }

        /* Sections */
        main>section {
            padding-top: 4rem;
            padding-bottom: 4rem;
            border-bottom: 1px solid var(--border);
        }

        @media (min-width: 768px) {
            main>section {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 0.75rem;
        }

        .section-label .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            display: inline-block;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }

        .section-desc {
            color: var(--muted);
            font-size: 1rem;
            max-width: 720px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-4px);
            border-color: var(--border-strong);
            box-shadow: var(--shadow-hover);
        }

        .card-accent-top {
            border-top: 3px solid var(--accent);
        }

        .card-accent-primary {
            border-top: 3px solid var(--primary);
        }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 600px;
            display: flex;
            align-items: center;
            background-color: var(--bg);
            overflow: hidden;
            border-bottom: 1px solid var(--border);
            padding: 0;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
            background-image: url('/assets/images/191f0b861ef90723.webp');
            background-size: cover;
            background-position: center;
            filter: brightness(0.45) saturate(0.8);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: linear-gradient(180deg, rgba(14,17,22,0.55) 0%, rgba(14,17,22,0.7) 50%, rgba(14,17,22,0.9) 100%);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            padding: 4rem 0;
            width: 100%;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            align-items: center;
        }

        @media (min-width: 768px) {
            .hero-inner {
                grid-template-columns: 1.2fr 0.8fr;
                gap: 3rem;
            }
        }

        .hero-text .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(229, 72, 77, 0.15);
            border: 1px solid rgba(229, 72, 77, 0.3);
            border-radius: 999px;
            padding: 0.35rem 0.9rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-hover);
            margin-bottom: 1.25rem;
        }

        .hero-text h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

        .hero-text .hero-subtitle {
            font-size: 1.05rem;
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 1.75rem;
            max-width: 560px;
        }

        .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.9rem;
            margin-bottom: 1.75rem;
        }

        .hero-data-row {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            font-size: 0.85rem;
            color: var(--muted);
        }

        .hero-data-row .data-item {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .hero-data-row .data-item .num {
            font-family: var(--font-mono);
            color: var(--secondary);
            font-weight: 600;
        }

        .hero-mini-score-card {
            background: rgba(23, 29, 38, 0.85);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius);
            padding: 1.25rem;
            box-shadow: var(--shadow);
        }

        .hero-mini-score-card .live-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            background: rgba(229, 72, 77, 0.15);
            border: 1px solid rgba(229, 72, 77, 0.3);
            border-radius: 999px;
            padding: 0.2rem 0.65rem;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary-hover);
            margin-bottom: 0.9rem;
        }

        .hero-mini-score-card .live-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--danger);
            animation: pulse-dot 1.2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.35;
            }
        }

        .mini-score-team {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(44, 56, 72, 0.6);
            font-size: 0.9rem;
        }

        .mini-score-team:last-of-type {
            border-bottom: none;
        }

        .mini-score-team .team-name {
            color: var(--text);
            font-weight: 600;
        }

        .mini-score-team .team-score {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--secondary);
        }

        .mini-score-meta {
            display: flex;
            justify-content: space-between;
            margin-top: 0.75rem;
            font-size: 0.8rem;
            color: var(--muted);
        }

        /* Metric Cards */
        .metric-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 640px) {
            .metric-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .metric-grid {
                grid-template-columns: repeat(5, 1fr);
                gap: 0.9rem;
            }
        }

        .metric-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.1rem 1.2rem;
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            transition: border-color var(--transition), transform var(--transition);
        }

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

        .metric-card .metric-value {
            font-family: var(--font-mono);
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
        }

        .metric-card .metric-value.accent-color {
            color: var(--accent);
        }

        .metric-card .metric-label {
            font-size: 0.85rem;
            color: var(--muted);
            font-weight: 500;
        }

        .metric-card .metric-time {
            font-size: 0.72rem;
            color: rgba(155, 168, 186, 0.6);
            margin-top: auto;
        }

        /* Query Matrix */
        .query-matrix {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 768px) {
            .query-matrix {
                grid-template-columns: 1.2fr 0.8fr;
                gap: 1rem;
            }
        }

        @media (min-width: 1024px) {
            .query-matrix {
                grid-template-columns: 1.1fr 0.5fr 0.5fr;
            }
        }

        .query-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem;
            transition: transform var(--transition), border-color var(--transition);
            position: relative;
            overflow: hidden;
            min-height: 200px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .query-card:hover {
            transform: translateY(-4px);
            border-color: var(--accent);
        }

        .query-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: var(--accent);
            opacity: 0;
            transition: opacity var(--transition);
        }

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

        .query-card .query-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.5rem;
        }

        .query-card .query-desc {
            font-size: 0.9rem;
            color: var(--muted);
            margin-bottom: 1rem;
            flex-grow: 1;
        }

        .query-card .query-link {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
        }

        .query-card .query-link:hover {
            color: var(--primary-hover);
            text-decoration: none;
        }

        .query-main-card {
            background: var(--surface-2);
            border: 1px solid var(--border-strong);
            min-height: 280px;
        }

        /* Hero bar list */
        .hero-bar-list {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            margin-top: 0.75rem;
        }

        .hero-bar-item {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.85rem;
            color: var(--muted);
        }

        .hero-bar-item .bar-track {
            flex: 1;
            height: 6px;
            background: var(--bg);
            border-radius: 999px;
            overflow: hidden;
        }

        .hero-bar-item .bar-fill {
            height: 100%;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
        }

        .hero-bar-item .bar-value {
            font-family: var(--font-mono);
            font-weight: 600;
            color: var(--text);
            min-width: 48px;
            text-align: right;
        }

        /* VS Comparison */
        .versus-container {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
            align-items: stretch;
        }

        @media (min-width: 768px) {
            .versus-container {
                grid-template-columns: 1fr auto 1fr;
                gap: 1.5rem;
            }
        }

        .versus-team {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem;
            text-align: center;
            transition: border-color var(--transition);
        }

        .versus-team:hover {
            border-color: var(--border-strong);
        }

        .versus-team .vs-team-name {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.5rem;
        }

        .versus-team .vs-score {
            font-family: var(--font-mono);
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
        }

        .versus-team .vs-detail {
            font-size: 0.85rem;
            color: var(--muted);
            margin-top: 0.5rem;
        }

        .versus-center {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.1em;
        }

        @media (max-width: 767px) {
            .versus-center {
                font-size: 1.2rem;
                padding: 0.25rem;
            }
        }

        /* Timeline */
        .timeline-horizontal {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            position: relative;
            padding: 1.5rem 0;
        }

        @media (min-width: 768px) {
            .timeline-horizontal {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.5rem;
                padding: 2rem 0;
            }

            .timeline-horizontal::before {
                content: '';
                position: absolute;
                top: 50%;
                left: 0;
                right: 0;
                height: 2px;
                background: linear-gradient(90deg, var(--border), var(--border-strong), var(--border));
                transform: translateY(-50%);
            }
        }

        .timeline-node {
            position: relative;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            padding-left: 1.5rem;
        }

        @media (min-width: 768px) {
            .timeline-node {
                padding-left: 0;
                padding-top: 0;
                text-align: center;
                align-items: center;
            }
        }

        .timeline-node .tl-dot {
            position: absolute;
            left: 0;
            top: 0.4rem;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid var(--bg);
            box-shadow: 0 0 0 2px var(--primary);
            flex-shrink: 0;
        }

        @media (min-width: 768px) {
            .timeline-node .tl-dot {
                position: relative;
                left: auto;
                top: auto;
                margin-bottom: 0.75rem;
            }
        }

        .timeline-node .tl-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
        }

        .timeline-node .tl-desc {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.6;
        }

        /* News */
        .news-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 768px) {
            .news-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.25rem;
            }
        }

        @media (min-width: 1024px) {
            .news-list {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.25rem;
            }
        }

        .news-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            transition: transform var(--transition), border-color var(--transition);
        }

        .news-card:hover {
            transform: translateY(-3px);
            border-color: var(--border-strong);
        }

        .news-card .news-date {
            display: inline-block;
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: var(--secondary);
            font-weight: 600;
            letter-spacing: 0.03em;
            background: rgba(255, 178, 36, 0.08);
            border: 1px solid rgba(255, 178, 36, 0.2);
            border-radius: 6px;
            padding: 0.15rem 0.6rem;
            width: fit-content;
        }

        .news-card .news-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
        }

        .news-card .news-summary {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
            flex-grow: 1;
        }

        .news-card .news-read-more {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.4rem 0.9rem;
            border: 1px solid var(--border-strong);
            border-radius: 8px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text);
            width: fit-content;
            transition: all var(--transition);
        }

        .news-card .news-read-more:hover {
            border-color: var(--primary);
            color: var(--primary-hover);
            text-decoration: none;
        }

        /* Brand Intro */
        .brand-intro {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            align-items: center;
        }

        @media (min-width: 768px) {
            .brand-intro {
                grid-template-columns: 1fr 0.5fr;
                gap: 2.5rem;
            }
        }

        .brand-intro .brand-text p {
            color: var(--muted);
            line-height: 1.85;
            margin-bottom: 1.25rem;
            font-size: 0.98rem;
        }

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

        .brand-intro .brand-image {
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
        }

        .brand-intro .brand-image img {
            width: 100%;
            height: 250px;
            object-fit: cover;
        }

        /* Team Cards */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1rem;
        }

        @media (min-width: 768px) {
            .team-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.25rem;
            }
        }

        @media (min-width: 1024px) {
            .team-grid {
                grid-template-columns: repeat(6, 1fr);
                gap: 1rem;
            }
        }

        .team-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1rem;
            text-align: center;
            transition: transform var(--transition), border-color var(--transition);
        }

        .team-card:hover {
            transform: translateY(-3px);
            border-color: var(--border-strong);
        }

        .team-card .team-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text);
            margin-bottom: 0.4rem;
        }

        .team-card .team-record {
            font-size: 0.8rem;
            color: var(--muted);
            margin-bottom: 0.4rem;
        }

        .team-card .team-points {
            font-family: var(--font-mono);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 0.4rem;
        }

        .team-card .team-trend {
            display: inline-block;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.15rem 0.55rem;
            border-radius: 999px;
        }

        .trend-up {
            background: rgba(52, 211, 153, 0.12);
            color: var(--success);
            border: 1px solid rgba(52, 211, 153, 0.25);
        }

        .trend-down {
            background: rgba(248, 113, 113, 0.12);
            color: var(--danger);
            border: 1px solid rgba(248, 113, 113, 0.25);
        }

        .trend-stable {
            background: rgba(155, 168, 186, 0.12);
            color: var(--muted);
            border: 1px solid rgba(155, 168, 186, 0.25);
        }

        /* Scene Cards */
        .scene-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 640px) {
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
        }

        @media (min-width: 1024px) {
            .scene-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 1.25rem;
            }
        }

        .scene-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
            transition: transform var(--transition), border-color var(--transition);
        }

        .scene-card:hover {
            transform: translateY(-3px);
            border-color: var(--accent);
        }

        .scene-card .scene-icon {
            font-size: 1.5rem;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(45, 212, 191, 0.1);
            border-radius: 10px;
            margin-bottom: 0.25rem;
        }

        .scene-card .scene-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
        }

        .scene-card .scene-desc {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.65;
            flex-grow: 1;
        }

        .scene-card .scene-link {
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent);
        }

        .scene-card .scene-link:hover {
            color: var(--primary-hover);
        }

        /* Reliability */
        .reliability-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 640px) {
            .reliability-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.25rem;
            }
        }

        @media (min-width: 1024px) {
            .reliability-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.25rem;
            }
        }

        .reliability-item {
            text-align: center;
            padding: 1.25rem 1rem;
        }

        .reliability-item .rel-icon {
            font-size: 2rem;
            margin-bottom: 0.75rem;
            display: inline-block;
        }

        .reliability-item .rel-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text);
            margin-bottom: 0.4rem;
        }

        .reliability-item .rel-desc {
            font-size: 0.83rem;
            color: var(--muted);
            line-height: 1.6;
        }

        /* Quick Answers */
        .quick-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0.8rem;
        }

        @media (min-width: 640px) {
            .quick-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
        }

        @media (min-width: 1024px) {
            .quick-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 1rem;
            }
        }

        .quick-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1rem 1.1rem;
            cursor: pointer;
            transition: border-color var(--transition), background-color var(--transition);
        }

        .quick-item:hover {
            border-color: var(--border-strong);
            background: var(--surface-2);
        }

        .quick-item .qa-q {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text);
            margin-bottom: 0.35rem;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .quick-item .qa-q .qa-badge {
            font-family: var(--font-mono);
            font-size: 0.7rem;
            background: var(--primary);
            color: #fff;
            border-radius: 4px;
            padding: 0.1rem 0.3rem;
            font-weight: 700;
        }

        .quick-item .qa-a {
            font-size: 0.83rem;
            color: var(--muted);
            line-height: 1.65;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-strong);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.25rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            min-height: 44px;
            user-select: none;
            transition: color var(--transition);
        }

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

        .faq-item .faq-icon {
            flex-shrink: 0;
            font-size: 0.8rem;
            color: var(--muted);
            transition: transform var(--transition);
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }

        .faq-item .faq-answer {
            display: none;
            padding: 0 1.25rem 1.1rem;
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.75;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        /* CTA Form */
        .cta-subscribe {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            align-items: center;
        }

        @media (min-width: 768px) {
            .cta-subscribe {
                grid-template-columns: 1fr 1fr;
                gap: 3rem;
            }
        }

        .cta-left .cta-benefits {
            list-style: none;
            margin-top: 1.25rem;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .cta-left .cta-benefits li {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-size: 0.95rem;
            color: var(--muted);
        }

        .cta-left .cta-benefits li .check-icon {
            color: var(--accent);
            flex-shrink: 0;
            font-weight: 700;
        }

        .cta-form-card {
            background: var(--surface-2);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }

        .cta-form-card .form-group {
            margin-bottom: 1.1rem;
        }

        .cta-form-card label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.35rem;
        }

        .cta-form-card input,
        .cta-form-card select {
            width: 100%;
            background: var(--bg);
            border: 1px solid var(--border-strong);
            border-radius: 10px;
            padding: 0.6rem 0.9rem;
            font-size: 0.9rem;
            color: var(--text);
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .cta-form-card input:focus,
        .cta-form-card select:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
            outline: none;
        }

        .cta-form-card .privacy-note {
            font-size: 0.75rem;
            color: var(--muted);
            margin-top: 0.75rem;
            text-align: center;
        }

        /* Footer */
        .site-footer {
            background: var(--bg);
            border-top: 1px solid var(--border);
            padding-top: 3rem;
            padding-bottom: 1.5rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid var(--border);
        }

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.3fr 0.7fr 0.7fr 0.6fr;
                gap: 2.5rem;
            }
        }

        .footer-brand .footer-logo {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.45rem;
        }

        .footer-brand .footer-desc {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.75;
        }

        .footer-col .footer-col-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.9rem;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--muted);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
            padding-top: 1.25rem;
            font-size: 0.8rem;
            color: var(--muted);
        }

        .footer-bottom a {
            font-size: 0.8rem;
            color: var(--muted);
        }

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

        .footer-bottom .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        /* Responsive Nav */
        @media (max-width: 1023px) {
            .nav-channels {
                display: none;
            }

            .nav-actions {
                display: none;
            }

            .hamburger {
                display: block;
                margin-left: auto;
            }

            .nav-container {
                gap: 0.5rem;
            }

            .nav-logo {
                font-size: 1rem;
            }
        }

        @media (max-width: 767px) {
            .hero-section {
                min-height: 520px;
            }

            .hero-mini-score-card {
                padding: 1rem;
            }

            main>section {
                padding-top: 3rem;
                padding-bottom: 3rem;
            }

            .metric-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.8rem;
            }

            .team-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.75rem;
            }

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

        @media (max-width: 519px) {
            .metric-grid {
                grid-template-columns: 1fr;
                gap: 0.7rem;
            }

            .hero-cta-group .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-text h1 {
                font-size: 1.7rem;
            }

            .ticker-list .ticker-item {
                font-size: 14px;
            }
        }

        /* Ticker */
        .ticker-bar {
            overflow: hidden;
            white-space: nowrap;
            background: var(--surface-2);
            border-bottom: 1px solid var(--border);
            padding: 0.5rem 0;
        }

        .ticker-list {
            display: inline-block;
            animation: ticker-scroll 40s linear infinite;
            font-size: 0.85rem;
            color: var(--muted);
        }

        .ticker-list .ticker-item {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            margin-right: 2.5rem;
        }

        .ticker-list .ticker-item .tick-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

        @keyframes ticker-scroll {
            0% {
                transform: translateX(0);
            }
            100% {
                transform: translateX(-50%);
            }
        }

        /* JSON-LD visually untouched */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

/* roulang page: category3 */
:root {
            --bg: #0E1116;
            --surface: #171D26;
            --surface-2: #1F2834;
            --border: #2C3848;
            --border-strong: #3A4A5E;
            --primary: #E5484D;
            --primary-hover: #FF6B70;
            --secondary: #FFB224;
            --accent: #2DD4BF;
            --text: #F4F7FB;
            --muted: #9BA8BA;
            --danger: #F87171;
            --success: #34D399;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 18px 45px rgba(0, 0, 0, 0.45);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
            --font-mono: "JetBrains Mono", "SFMono-Regular", "Consolas", monospace;
            --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 1rem;
            overflow-x: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(14, 17, 22, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .nav-container {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
            flex-wrap: nowrap;
            min-height: 64px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.01em;
        }
        .nav-logo:hover {
            color: var(--primary-hover);
            text-decoration: none;
        }
        .nav-logo-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), #b9333a);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-channels::-webkit-scrollbar {
            display: none;
        }
        .nav-channel {
            display: inline-flex;
            align-items: center;
            padding: 0.4rem 0.75rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            white-space: nowrap;
            transition: color var(--transition), background-color var(--transition);
            flex-shrink: 0;
        }
        .nav-channel:hover {
            color: var(--text);
            background-color: var(--surface-2);
            text-decoration: none;
        }
        .nav-channel.active {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
            border-radius: 0;
            padding-bottom: 0.25rem;
            margin-bottom: -0.25rem;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            padding: 0.35rem 0.8rem;
            gap: 0.5rem;
            width: 210px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
        }
        .nav-search input {
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 0.875rem;
            width: 100%;
            outline: none;
        }
        .nav-search input::placeholder {
            color: var(--muted);
        }
        .nav-search-icon {
            color: var(--muted);
            flex-shrink: 0;
            font-size: 0.8rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.55rem 1.25rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #FF6B70);
            color: #fff;
            box-shadow: 0 4px 14px rgba(229, 72, 77, 0.3);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-hover), #FF8A8E);
            box-shadow: 0 6px 20px rgba(229, 72, 77, 0.45);
            transform: translateY(-1px);
            color: #fff;
            text-decoration: none;
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-primary:focus {
            box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.4);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(45, 212, 191, 0.06);
            text-decoration: none;
        }
        .btn-outline:active {
            transform: scale(0.98);
        }
        .btn-outline:focus {
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.25);
        }
        .btn-sm {
            padding: 0.4rem 0.9rem;
            font-size: 0.8rem;
            border-radius: 8px;
        }
        .page-hero {
            padding: 2.5rem 0 2rem;
            border-bottom: 1px solid var(--border);
            background: radial-gradient(ellipse at top right, rgba(229, 72, 77, 0.08), transparent 60%), var(--bg);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--muted);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb-sep {
            color: var(--border-strong);
        }
        .page-hero h1 {
            font-size: clamp(2rem, 5vw, 3rem);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            color: var(--text);
            margin-bottom: 0.75rem;
        }
        .page-hero-desc {
            font-size: 1.1rem;
            color: var(--muted);
            max-width: 720px;
            line-height: 1.8;
        }
        .section-block {
            padding: 3rem 0;
            border-bottom: 1px solid var(--border);
        }
        .section-block:last-of-type {
            border-bottom: none;
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            color: var(--muted);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 2rem;
            max-width: 780px;
        }
        .data-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem;
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .data-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .stat-value {
            font-family: var(--font-mono);
            font-size: 2rem;
            font-weight: 600;
            color: var(--secondary);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--muted);
            margin-top: 0.35rem;
        }
        .stat-update {
            font-size: 0.75rem;
            color: var(--muted);
            margin-top: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .bar-row {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.85rem 1rem;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            margin-bottom: 0.6rem;
        }
        .bar-row:hover {
            border-color: var(--border-strong);
            background: var(--surface-2);
            transform: translateX(4px);
        }
        .bar-name {
            font-weight: 600;
            font-size: 0.95rem;
            min-width: 90px;
            color: var(--text);
            flex-shrink: 0;
        }
        .bar-track {
            flex: 1;
            height: 8px;
            background: var(--surface-2);
            border-radius: 999px;
            overflow: hidden;
            min-width: 60px;
        }
        .bar-fill {
            height: 100%;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--primary), var(--primary-hover));
            transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .bar-fill.accent-fill {
            background: linear-gradient(90deg, var(--accent), #6EE7D7);
        }
        .bar-fill.secondary-fill {
            background: linear-gradient(90deg, var(--secondary), #FFD166);
        }
        .bar-meta {
            font-family: var(--font-mono);
            font-size: 0.8rem;
            color: var(--muted);
            min-width: 90px;
            text-align: right;
            flex-shrink: 0;
        }
        .tier-badge {
            display: inline-flex;
            align-items: center;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            flex-shrink: 0;
        }
        .tier-t0 {
            background: rgba(229, 72, 77, 0.18);
            color: var(--primary-hover);
            border: 1px solid rgba(229, 72, 77, 0.4);
        }
        .tier-t1 {
            background: rgba(255, 178, 36, 0.16);
            color: var(--secondary);
            border: 1px solid rgba(255, 178, 36, 0.4);
        }
        .tier-t2 {
            background: rgba(45, 212, 191, 0.14);
            color: var(--accent);
            border: 1px solid rgba(45, 212, 191, 0.35);
        }
        .tier-t3 {
            background: rgba(155, 168, 186, 0.14);
            color: var(--muted);
            border: 1px solid rgba(155, 168, 186, 0.3);
        }
        .info-tip {
            background: var(--surface);
            border-left: 3px solid var(--accent);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            padding: 1rem 1.25rem;
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.8;
            margin-bottom: 1.5rem;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 0.75rem;
            background: var(--surface);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-strong);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.25rem;
            background: transparent;
            border: none;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            text-align: left;
            min-height: 44px;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary-hover);
        }
        .faq-icon {
            color: var(--muted);
            font-size: 1.2rem;
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s;
            padding: 0 1.25rem;
            color: var(--muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1.25rem;
            padding-top: 0.25rem;
        }
        .subscribe-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }
        @media (max-width: 768px) {
            .subscribe-card {
                grid-template-columns: 1fr;
            }
        }
        .subscribe-info {
            padding: 2rem;
            background: linear-gradient(135deg, rgba(229, 72, 77, 0.08), transparent), var(--surface-2);
        }
        .subscribe-info h3 {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.75rem;
        }
        .subscribe-info ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.65rem;
        }
        .subscribe-info li {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--muted);
            font-size: 0.95rem;
        }
        .subscribe-info li::before {
            content: "▹";
            color: var(--accent);
            font-weight: 700;
        }
        .subscribe-form-wrap {
            padding: 2rem;
        }
        .form-group {
            margin-bottom: 1.25rem;
        }
        .form-group label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.45rem;
        }
        .form-input {
            width: 100%;
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.65rem 1rem;
            font-size: 0.95rem;
            color: var(--text);
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .form-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
        }
        .form-input::placeholder {
            color: var(--muted);
        }
        select.form-input {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239BA8BA' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 1rem center;
        }
        .privacy-hint {
            font-size: 0.75rem;
            color: var(--muted);
            margin-top: 1rem;
            line-height: 1.6;
        }
        .site-footer {
            background: var(--surface-2);
            border-top: 1px solid var(--border);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2.5rem;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 1rem;
        }
        .footer-desc {
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.8;
            margin-bottom: 1rem;
        }
        .footer-col-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.45rem;
        }
        .footer-col a {
            color: var(--muted);
            font-size: 0.9rem;
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border);
            flex-wrap: wrap;
            color: var(--muted);
            font-size: 0.85rem;
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .footer-links a {
            color: var(--muted);
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .nav-mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 8px;
            padding: 0.4rem 0.6rem;
            cursor: pointer;
            color: var(--text);
            font-size: 1.2rem;
            transition: border-color var(--transition);
        }
        .nav-mobile-toggle:hover {
            border-color: var(--accent);
        }
        @media (max-width: 1024px) {
            .nav-channels {
                gap: 0.15rem;
            }
            .nav-channel {
                padding: 0.35rem 0.55rem;
                font-size: 0.82rem;
            }
            .nav-search {
                width: 150px;
            }
        }
        @media (max-width: 768px) {
            .nav-container {
                flex-wrap: wrap;
                gap: 0.75rem;
            }
            .nav-channels {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                overflow-x: auto;
                padding-bottom: 0.25rem;
            }
            .nav-actions {
                gap: 0.5rem;
            }
            .nav-search {
                width: 140px;
            }
            .nav-mobile-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-channels-mobile-hidden {
                display: none;
            }
            .nav-channels-mobile-hidden.open {
                display: flex;
            }
            .section-block {
                padding: 2rem 0;
            }
            .subscribe-card {
                grid-template-columns: 1fr;
            }
            .bar-row {
                flex-wrap: wrap;
                gap: 0.5rem;
            }
            .bar-name {
                min-width: 70px;
                font-size: 0.85rem;
            }
            .bar-meta {
                min-width: 70px;
                font-size: 0.75rem;
            }
        }
        @media (max-width: 520px) {
            .nav-container {
                gap: 0.5rem;
            }
            .nav-logo {
                font-size: 1rem;
            }
            .nav-search {
                width: 100%;
                order: 4;
                flex: 1;
            }
            .nav-actions {
                flex-shrink: 0;
            }
            .page-hero h1 {
                font-size: 1.7rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .stat-value {
                font-size: 1.5rem;
            }
        }
        .image-cover {
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--border);
            background: var(--surface-2);
        }
        .image-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .grid-overview {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 1.25rem;
        }
        @media (min-width: 1024px) {
            .grid-overview {
                grid-template-columns: repeat(4, 1fr);
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0E1116;
            --surface: #171D26;
            --surface-2: #1F2834;
            --border: #2C3848;
            --border-strong: #3A4A5E;
            --primary: #E5484D;
            --primary-hover: #FF6B70;
            --secondary: #FFB224;
            --accent: #2DD4BF;
            --text: #F4F7FB;
            --muted: #9BA8BA;
            --danger: #F87171;
            --success: #34D399;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 18px 45px rgba(0, 0, 0, 0.45);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
            --font-mono: "JetBrains Mono", "SFMono-Regular", "Consolas", monospace;
            --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 1rem;
            overflow-x: hidden;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition), background-color var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* Header/Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .nav-container {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
            flex-wrap: nowrap;
            min-height: 64px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.01em;
        }
        .nav-logo:hover {
            color: var(--primary-hover);
            text-decoration: none;
        }
        .nav-logo-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), #b9333a);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-channels::-webkit-scrollbar {
            display: none;
        }
        .nav-channel {
            display: inline-flex;
            align-items: center;
            padding: 0.4rem 0.75rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            white-space: nowrap;
            transition: color var(--transition), background-color var(--transition);
            flex-shrink: 0;
        }
        .nav-channel:hover {
            color: var(--text);
            background-color: var(--surface-2);
            text-decoration: none;
        }
        .nav-channel.active {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
            border-radius: 0;
            padding-bottom: 0.25rem;
            margin-bottom: -0.25rem;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            padding: 0.35rem 0.8rem;
            gap: 0.5rem;
            width: 210px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
        }
        .nav-search input {
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 0.875rem;
            width: 100%;
            outline: none;
        }
        .nav-search input::placeholder {
            color: var(--muted);
        }
        .nav-search-icon {
            color: var(--muted);
            flex-shrink: 0;
            font-size: 0.8rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.55rem 1.25rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #FF6B70);
            color: #fff;
            box-shadow: 0 4px 14px rgba(229, 72, 77, 0.3);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-hover), #FF8A8E);
            box-shadow: 0 6px 20px rgba(229, 72, 77, 0.4);
            transform: translateY(-1px);
            text-decoration: none;
        }
        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: 0 2px 8px rgba(229, 72, 77, 0.25);
        }
        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.4), 0 4px 14px rgba(229, 72, 77, 0.3);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            text-decoration: none;
        }
        .btn-outline:active {
            transform: scale(0.98);
        }
        .btn-outline:focus-visible {
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.2);
        }
        .btn-sm {
            padding: 0.4rem 0.9rem;
            font-size: 0.8rem;
            border-radius: 8px;
        }
        .btn-lg {
            padding: 0.75rem 1.75rem;
            font-size: 1rem;
            border-radius: 12px;
        }

        /* Hamburger */
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 8px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            color: var(--text);
            cursor: pointer;
            flex-shrink: 0;
            transition: all var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--accent);
            color: var(--accent);
        }
        .nav-toggle:focus-visible {
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.2);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: var(--muted);
        }
        .breadcrumb a {
            color: var(--muted);
        }
        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .breadcrumb-sep {
            color: var(--border-strong);
        }
        .breadcrumb-current {
            color: var(--text);
            font-weight: 500;
        }

        /* Section */
        .section {
            padding: 3.5rem 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 5rem 0;
            }
        }
        .section-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
        }
        .section-subtitle {
            color: var(--muted);
            font-size: 1.05rem;
            margin-bottom: 2rem;
            max-width: 720px;
        }

        /* Cards */
        .card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem;
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-flat {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.25rem;
            transition: border-color var(--transition);
        }
        .card-flat:hover {
            border-color: var(--border-strong);
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            white-space: nowrap;
        }
        .badge-live {
            background: rgba(229, 72, 77, 0.15);
            color: var(--primary-hover);
            border: 1px solid rgba(229, 72, 77, 0.35);
        }
        .badge-done {
            background: rgba(52, 211, 153, 0.12);
            color: var(--success);
            border: 1px solid rgba(52, 211, 153, 0.3);
        }
        .badge-upcoming {
            background: rgba(255, 178, 36, 0.12);
            color: var(--secondary);
            border: 1px solid rgba(255, 178, 36, 0.3);
        }
        .badge-pending {
            background: rgba(155, 168, 186, 0.12);
            color: var(--muted);
            border: 1px solid rgba(155, 168, 186, 0.3);
        }

        /* Score card */
        .score-card {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.25rem;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: all var(--transition);
            cursor: default;
        }
        .score-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow);
        }
        .team-block {
            flex: 1;
            min-width: 0;
        }
        .team-name {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .team-tag {
            font-size: 0.75rem;
            color: var(--muted);
            margin-top: 0.15rem;
        }
        .score-middle {
            flex-shrink: 0;
            text-align: center;
            min-width: 7rem;
        }
        .score-num {
            font-family: var(--font-mono);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
        }
        .score-status {
            margin-top: 0.3rem;
        }
        .score-info {
            flex-shrink: 0;
            text-align: right;
            min-width: 6rem;
        }
        .score-event {
            font-size: 0.8rem;
            color: var(--muted);
        }
        .score-time {
            font-size: 0.75rem;
            color: var(--muted);
            margin-top: 0.15rem;
            font-family: var(--font-mono);
        }

        /* Filter chips */
        .filter-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.4rem 1rem;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--surface);
            border: 1px solid var(--border);
            color: var(--muted);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .chip:hover {
            border-color: var(--border-strong);
            color: var(--text);
        }
        .chip.active {
            background: rgba(229, 72, 77, 0.15);
            border-color: var(--primary);
            color: var(--primary-hover);
            font-weight: 600;
        }
        .chip:focus-visible {
            box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.2);
        }

        /* FAQ accordion */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 0.75rem;
            background: var(--surface);
            overflow: hidden;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.25rem;
            cursor: pointer;
            font-weight: 600;
            color: var(--text);
            font-size: 0.95rem;
            min-height: 44px;
            transition: background-color var(--transition);
            user-select: none;
        }
        .faq-question:hover {
            background: var(--surface-2);
        }
        .faq-icon {
            flex-shrink: 0;
            font-size: 0.8rem;
            color: var(--muted);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 250ms ease;
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-answer-inner {
            padding: 0 1.25rem 1.25rem;
            border-top: 1px solid var(--border);
            padding-top: 1rem;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* Form */
        .form-group {
            margin-bottom: 1rem;
        }
        .form-label {
            display: block;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text);
            margin-bottom: 0.4rem;
        }
        .form-input,
        .form-select {
            width: 100%;
            padding: 0.65rem 1rem;
            background: var(--surface-2);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 0.9rem;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .form-input:focus,
        .form-select:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
        }
        .form-input::placeholder {
            color: var(--muted);
        }
        .form-select option {
            background: var(--surface);
            color: var(--text);
        }
        .form-privacy {
            font-size: 0.75rem;
            color: var(--muted);
            margin-top: 0.75rem;
            line-height: 1.6;
        }

        /* Focus ring */
        .fm {
            display: inline-flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.85rem 1.1rem;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: all var(--transition);
        }
        .fm:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow);
        }
        .fm-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        /* Footer */
        .site-footer {
            background: #0A0D12;
            border-top: 1px solid var(--border);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
                gap: 2.5rem;
            }
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 0.75rem;
        }
        .footer-logo .nav-logo-icon {
            border-radius: 8px;
        }
        .footer-desc {
            color: var(--muted);
            font-size: 0.875rem;
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-col-title {
            font-weight: 600;
            color: var(--text);
            font-size: 0.9rem;
            margin-bottom: 0.75rem;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: var(--muted);
            font-size: 0.85rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 1.25rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--muted);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .footer-links a {
            color: var(--muted);
        }
        .footer-links a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        /* Responsive nav */
        @media (max-width: 1023px) {
            .nav-search {
                width: 160px;
            }
        }
        @media (max-width: 767px) {
            .nav-container {
                flex-wrap: wrap;
                gap: 0.5rem;
            }
            .nav-logo {
                flex: 1;
            }
            .nav-toggle {
                display: flex;
            }
            .nav-channels {
                display: none;
                flex-basis: 100%;
                order: 10;
                flex-direction: column;
                align-items: stretch;
                gap: 0.25rem;
                padding: 0.75rem 0;
            }
            .nav-channels.mobile-open {
                display: flex;
            }
            .nav-channel {
                padding: 0.6rem 0.75rem;
                width: 100%;
                border-radius: 8px;
            }
            .nav-channel.active {
                border-bottom: none;
                background: rgba(229, 72, 77, 0.12);
                padding-bottom: 0.6rem;
                margin-bottom: 0;
            }
            .nav-actions {
                flex-wrap: wrap;
                width: 100%;
                order: 11;
                padding-bottom: 0.5rem;
            }
            .nav-search {
                width: 100%;
                order: 12;
            }
            .nav-actions .btn {
                flex: 1;
            }
        }

        /* Score list animations */
        .score-list-enter {
            transition: opacity 200ms ease, transform 200ms ease;
        }
        .score-list-enter:hover {
            transform: translateX(4px);
        }

        /* Data source mark */
        .source-mark {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.75rem;
            color: var(--muted);
        }
        .source-mark .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--success);
            animation: pulse-dot 1.5s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }

/* roulang page: category2 */
:root {
            --bg: #0E1116;
            --surface: #171D26;
            --surface-2: #1F2834;
            --border: #2C3848;
            --border-strong: #3A4A5E;
            --primary: #E5484D;
            --primary-hover: #FF6B70;
            --secondary: #FFB224;
            --accent: #2DD4BF;
            --text: #F4F7FB;
            --muted: #9BA8BA;
            --danger: #F87171;
            --success: #34D399;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 18px 45px rgba(0, 0, 0, 0.45);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
            --font-mono: "JetBrains Mono", "SFMono-Regular", "Consolas", monospace;
            --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 1rem;
            overflow-x: hidden;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition);
        }
        a:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (min-width: 640px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* Header/Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }
        .nav-container {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
            flex-wrap: nowrap;
            min-height: 64px;
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.01em;
        }
        .nav-logo:hover {
            color: var(--primary-hover);
            text-decoration: none;
        }
        .nav-logo-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), #b9333a);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }
        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .nav-channels::-webkit-scrollbar {
            display: none;
        }
        .nav-channel {
            display: inline-flex;
            align-items: center;
            padding: 0.4rem 0.75rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            white-space: nowrap;
            transition: color var(--transition), background-color var(--transition);
            flex-shrink: 0;
        }
        .nav-channel:hover {
            color: var(--text);
            background-color: var(--surface-2);
            text-decoration: none;
        }
        .nav-channel.active {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
            border-radius: 0;
            padding-bottom: 0.25rem;
            margin-bottom: -0.25rem;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }
        .nav-search {
            display: flex;
            align-items: center;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            padding: 0.35rem 0.8rem;
            gap: 0.5rem;
            width: 210px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
        }
        .nav-search input {
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 0.875rem;
            width: 100%;
            outline: none;
        }
        .nav-search input::placeholder {
            color: var(--muted);
        }
        .nav-search-icon {
            color: var(--muted);
            flex-shrink: 0;
            font-size: 0.8rem;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.55rem 1.25rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            white-space: nowrap;
        }
        .btn:hover {
            text-decoration: none;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #FF6B70);
            color: #fff;
            box-shadow: 0 4px 14px rgba(229, 72, 77, 0.35);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-hover), #FF7B80);
            box-shadow: 0 8px 20px rgba(229, 72, 77, 0.5);
            transform: translateY(-2px);
        }
        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: 0 3px 10px rgba(229, 72, 77, 0.3);
        }
        .btn-primary:focus {
            box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.4);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background-color: rgba(45, 212, 191, 0.08);
        }
        .btn-outline:active {
            transform: scale(0.98);
        }
        .btn-outline:focus {
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.25);
        }
        .btn-small {
            padding: 0.4rem 0.9rem;
            font-size: 0.8rem;
        }
        .btn-muted-outline {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--muted);
            font-size: 0.8rem;
            padding: 0.4rem 0.9rem;
            border-radius: var(--radius-sm);
            font-weight: 500;
            transition: all var(--transition);
        }
        .btn-muted-outline:hover {
            border-color: var(--primary);
            color: var(--primary-hover);
            background-color: rgba(229, 72, 77, 0.08);
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 8px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--text);
            flex-shrink: 0;
            transition: border-color var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--accent);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            padding: 1rem 0;
            background-color: rgba(14, 17, 22, 0.98);
            border-top: 1px solid var(--border);
            animation: fadeIn 0.2s ease;
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu .nav-channels-mobile {
            display: flex;
            flex-direction: column;
            width: 100%;
            gap: 0;
        }
        .mobile-menu .nav-channel {
            padding: 0.7rem 1rem;
            font-size: 0.95rem;
            border-bottom: 1px solid var(--border);
            border-radius: 0;
            color: var(--muted);
        }
        .mobile-menu .nav-channel.active {
            color: var(--primary);
            border-bottom: 1px solid var(--border);
            background-color: rgba(229, 72, 77, 0.06);
        }
        .mobile-menu .nav-channel:hover {
            background-color: var(--surface-2);
            color: var(--text);
        }
        .mobile-menu .mobile-actions {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            padding: 1rem;
        }
        .mobile-menu .nav-search {
            width: 100%;
        }
        .mobile-menu .btn-row {
            display: flex;
            gap: 0.75rem;
        }
        .mobile-menu .btn-row .btn {
            flex: 1;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-8px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Section */
        .section {
            padding: 3rem 0;
        }
        @media (min-width: 768px) {
            .section {
                padding: 4rem 0;
            }
        }
        .section-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2.25rem);
            font-weight: 700;
            line-height: 1.35;
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
            color: var(--text);
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--muted);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 2rem;
        }
        .section-divider {
            border: none;
            border-top: 1px solid var(--border);
            margin: 2.5rem 0;
        }

        /* Card */
        .card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
        }
        .card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-body {
            padding: 1.5rem;
        }
        .card-cover {
            width: 100%;
            height: 160px;
            object-fit: cover;
            background-color: var(--surface-2);
        }
        .accent-top {
            border-top: 3px solid var(--accent);
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            transition: all var(--transition);
        }
        .badge-live {
            background-color: rgba(229, 72, 77, 0.15);
            color: var(--primary);
            border: 1px solid rgba(229, 72, 77, 0.3);
        }
        .badge-success {
            background-color: rgba(52, 211, 153, 0.12);
            color: var(--success);
            border: 1px solid rgba(52, 211, 153, 0.3);
        }
        .badge-warning {
            background-color: rgba(255, 178, 36, 0.12);
            color: var(--secondary);
            border: 1px solid rgba(255, 178, 36, 0.3);
        }
        .badge-muted {
            background-color: var(--surface-2);
            color: var(--muted);
            border: 1px solid var(--border);
        }
        .badge-accent {
            background-color: rgba(45, 212, 191, 0.12);
            color: var(--accent);
            border: 1px solid rgba(45, 212, 191, 0.3);
        }

        /* Stat number */
        .stat-number {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 2.25rem;
            line-height: 1.1;
            color: var(--secondary);
            letter-spacing: -0.02em;
        }
        .stat-number.accent {
            color: var(--accent);
        }
        .stat-number.primary {
            color: var(--primary);
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--muted);
            font-weight: 500;
        }
        .stat-timestamp {
            font-size: 0.75rem;
            color: var(--muted);
            opacity: 0.7;
        }

        /* Bar chart */
        .bar-row {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--border);
        }
        .bar-row:last-child {
            border-bottom: none;
        }
        .bar-label {
            flex-shrink: 0;
            width: 100px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
        }
        .bar-track {
            flex: 1;
            height: 10px;
            background-color: var(--surface-2);
            border-radius: 999px;
            overflow: hidden;
        }
        .bar-fill {
            height: 100%;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--primary), var(--primary-hover));
            transition: width var(--transition);
        }
        .bar-fill.accent {
            background: linear-gradient(90deg, var(--accent), #5ee0c9);
        }
        .bar-fill.secondary {
            background: linear-gradient(90deg, var(--secondary), #ffc95c);
        }
        .bar-value {
            flex-shrink: 0;
            font-family: var(--font-mono);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
            min-width: 50px;
            text-align: right;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--muted);
            transition: color var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb-sep {
            opacity: 0.5;
        }
        .breadcrumb-current {
            color: var(--text);
            font-weight: 500;
        }

        /* FAQ */
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 1rem 0.5rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            transition: color var(--transition);
            min-height: 44px;
            gap: 1rem;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-question-icon {
            flex-shrink: 0;
            color: var(--muted);
            font-size: 0.8rem;
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 0.5rem;
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1rem;
        }
        @media (min-width: 768px) {
            .faq-question {
                padding: 1rem 1rem;
                font-size: 1rem;
            }
            .faq-answer {
                padding: 0 1rem;
                font-size: 0.95rem;
            }
            .faq-item.open .faq-answer {
                padding-bottom: 1.25rem;
            }
        }

        /* Form */
        .form-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem;
            box-shadow: var(--shadow);
        }
        @media (min-width: 768px) {
            .form-card {
                padding: 2rem;
            }
        }
        .form-label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.5rem;
        }
        .form-input,
        .form-select {
            width: 100%;
            background-color: var(--surface-2);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1rem;
            font-size: 0.9rem;
            color: var(--text);
            transition: border-color var(--transition), box-shadow var(--transition);
            appearance: none;
        }
        .form-input:focus,
        .form-select:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
        }
        .form-select {
            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='%239BA8BA' d='M1.5 1.5l4.5 4.5 4.5-4.5'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 1rem center;
            padding-right: 2.5rem;
        }
        .form-privacy {
            font-size: 0.75rem;
            color: var(--muted);
            opacity: 0.8;
            margin-top: 0.75rem;
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background-color: #0B0E12;
            border-top: 1px solid var(--border);
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr 1fr;
                gap: 2.5rem;
            }
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 0.75rem;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.8;
            max-width: 340px;
        }
        .footer-col-title {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: 0.5rem;
        }
        .footer-col a {
            font-size: 0.85rem;
            color: var(--muted);
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 1.25rem;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--muted);
        }
        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .footer-links a {
            color: var(--muted);
            font-size: 0.8rem;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-links span {
            color: var(--border-strong);
        }

        /* Breadcrumb + H1 block */
        .page-header {
            padding: 2.5rem 0 1.5rem;
            border-bottom: 1px solid var(--border);
            background: linear-gradient(180deg, rgba(31, 40, 52, 0.5) 0%, rgba(14, 17, 22, 0) 100%);
        }
        .page-h1 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
            color: var(--text);
            margin-bottom: 0.5rem;
        }
        .page-summary {
            font-size: 1rem;
            color: var(--muted);
            line-height: 1.8;
            max-width: 680px;
        }

        /* News card */
        .news-card {
            display: flex;
            flex-direction: column;
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .news-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .news-cover {
            width: 100%;
            height: 140px;
            object-fit: cover;
            background-color: var(--surface-2);
        }
        .news-body {
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-date {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: var(--muted);
            font-weight: 500;
            margin-bottom: 0.5rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .news-date::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: var(--primary);
            flex-shrink: 0;
        }
        .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            margin-bottom: 0.5rem;
        }
        .news-excerpt {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 0.75rem;
        }
        .news-link-btn {
            align-self: flex-start;
        }

        /* Data list card */
        .data-list-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 1rem;
            transition: all var(--transition);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        .data-list-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-hover);
        }
        .data-list-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem;
            padding: 1rem 1.25rem;
            background-color: var(--surface-2);
            border-bottom: 1px solid var(--border);
        }
        .data-list-body {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
            padding: 1.25rem;
        }
        @media (min-width: 768px) {
            .data-list-body {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        .data-point {
            text-align: center;
        }
        .data-point-value {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text);
            line-height: 1.2;
        }
        .data-point-value.accent {
            color: var(--accent);
        }
        .data-point-value.secondary {
            color: var(--secondary);
        }
        .data-point-value.primary {
            color: var(--primary);
        }
        .data-point-label {
            font-size: 0.75rem;
            color: var(--muted);
            margin-top: 0.25rem;
        }

        /* Responsive nav */
        @media (max-width: 1023px) {
            .nav-channels {
                display: none;
            }
            .nav-actions {
                display: none;
            }
            .nav-toggle {
                display: flex;
                margin-left: auto;
            }
            .nav-container {
                gap: 0.75rem;
            }
        }
        @media (min-width: 1024px) {
            .nav-toggle {
                display: none;
            }
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, rgba(229, 72, 77, 0.08) 0%, rgba(14, 17, 22, 0) 60%);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 2rem 1.5rem;
        }
        @media (min-width: 768px) {
            .cta-section {
                padding: 2.5rem 3rem;
            }
        }

/* roulang page: category5 */
:root {
            --bg: #0E1116;
            --surface: #171D26;
            --surface-2: #1F2834;
            --border: #2C3848;
            --border-strong: #3A4A5E;
            --primary: #E5484D;
            --primary-hover: #FF6B70;
            --secondary: #FFB224;
            --accent: #2DD4BF;
            --text: #F4F7FB;
            --muted: #9BA8BA;
            --danger: #F87171;
            --success: #34D399;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 18px 45px rgba(0, 0, 0, 0.45);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
            --font-mono: "JetBrains Mono", "SFMono-Regular", "Consolas", monospace;
            --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 1rem;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition);
        }

        a:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* Header/Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .nav-container {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
            flex-wrap: nowrap;
            min-height: 64px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.01em;
        }

        .nav-logo:hover {
            color: var(--primary-hover);
            text-decoration: none;
        }

        .nav-logo-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), #b9333a);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-channels::-webkit-scrollbar {
            display: none;
        }

        .nav-channel {
            display: inline-flex;
            align-items: center;
            padding: 0.4rem 0.75rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            white-space: nowrap;
            transition: color var(--transition), background-color var(--transition);
            flex-shrink: 0;
        }

        .nav-channel:hover {
            color: var(--text);
            background-color: var(--surface-2);
            text-decoration: none;
        }

        .nav-channel.active {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
            border-radius: 0;
            padding-bottom: 0.25rem;
            margin-bottom: -0.25rem;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            padding: 0.35rem 0.8rem;
            gap: 0.5rem;
            width: 210px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
        }

        .nav-search input {
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 0.875rem;
            width: 100%;
            outline: none;
        }

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

        .nav-search-icon {
            color: var(--muted);
            flex-shrink: 0;
            font-size: 0.8rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.55rem 1.25rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            white-space: nowrap;
            text-decoration: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #FF6B70);
            color: #fff;
            box-shadow: 0 4px 14px rgba(229, 72, 77, 0.35);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-hover), #FF8589);
            box-shadow: 0 6px 20px rgba(229, 72, 77, 0.45);
            transform: translateY(-1px);
            text-decoration: none;
            color: #fff;
        }

        .btn-primary:active {
            transform: scale(0.98);
            box-shadow: 0 2px 8px rgba(229, 72, 77, 0.3);
        }

        .btn-primary:focus {
            box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.4);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            text-decoration: none;
            transform: translateY(-1px);
        }

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

        .btn-outline:focus {
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.2);
        }

        .btn-sm {
            padding: 0.4rem 0.9rem;
            font-size: 0.82rem;
            border-radius: 8px;
        }

        /* Mobile nav toggle */
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border-strong);
            border-radius: 8px;
            color: var(--text);
            padding: 0.4rem 0.6rem;
            cursor: pointer;
            font-size: 1.1rem;
            transition: all var(--transition);
        }

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

        /* Mobile nav wrapper */
        .nav-mobile-collapse {
            display: none;
            flex-direction: column;
            gap: 0.75rem;
            padding: 1rem 0 1.25rem;
            border-top: 1px solid var(--border);
            background-color: rgba(14, 17, 22, 0.98);
        }

        .nav-mobile-collapse.open {
            display: flex;
        }

        .nav-mobile-collapse .nav-channels-mobile {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .nav-mobile-collapse .nav-channel-mobile {
            padding: 0.6rem 0.75rem;
            border-radius: 8px;
            color: var(--muted);
            font-weight: 500;
            transition: all var(--transition);
        }

        .nav-mobile-collapse .nav-channel-mobile:hover {
            color: var(--text);
            background-color: var(--surface-2);
            text-decoration: none;
        }

        .nav-mobile-collapse .nav-channel-mobile.active {
            color: var(--primary);
            background-color: rgba(229, 72, 77, 0.1);
        }

        .nav-mobile-collapse .nav-search-mobile {
            display: flex;
            align-items: center;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            padding: 0.5rem 1rem;
            gap: 0.5rem;
            width: 100%;
        }

        .nav-mobile-collapse .nav-search-mobile input {
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 0.875rem;
            width: 100%;
            outline: none;
        }

        .nav-mobile-collapse .nav-actions-mobile {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
        }

        @media (max-width: 1023px) {
            .nav-channels,
            .nav-actions {
                display: none;
            }
            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .nav-container {
                justify-content: space-between;
            }
        }

        @media (min-width: 1024px) {
            .nav-toggle,
            .nav-mobile-collapse {
                display: none;
            }
        }

        /* Section styles */
        .section {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }

        @media (min-width: 768px) {
            .section {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }

        .section-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-heading {
            font-size: clamp(1.5rem, 2.5vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 0.75rem;
            letter-spacing: -0.01em;
        }

        .section-subheading {
            font-size: 1.05rem;
            color: var(--muted);
            max-width: 720px;
            line-height: 1.8;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--muted);
            padding: 1rem 0 0;
        }

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

        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .breadcrumb .separator {
            color: var(--border-strong);
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* Card */
        .card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            overflow: hidden;
        }

        .card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .card-body {
            padding: 1.5rem;
        }

        .card-title {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }

        .card-text {
            color: var(--muted);
            font-size: 0.92rem;
            line-height: 1.8;
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            white-space: nowrap;
        }

        .badge-primary {
            background-color: rgba(229, 72, 77, 0.15);
            color: var(--primary);
            border: 1px solid rgba(229, 72, 77, 0.3);
        }

        .badge-secondary {
            background-color: rgba(255, 178, 36, 0.15);
            color: var(--secondary);
            border: 1px solid rgba(255, 178, 36, 0.3);
        }

        .badge-accent {
            background-color: rgba(45, 212, 191, 0.15);
            color: var(--accent);
            border: 1px solid rgba(45, 212, 191, 0.3);
        }

        .badge-muted {
            background-color: var(--surface-2);
            color: var(--muted);
            border: 1px solid var(--border);
        }

        .badge-danger {
            background-color: rgba(248, 113, 113, 0.15);
            color: var(--danger);
            border: 1px solid rgba(248, 113, 113, 0.3);
        }

        .badge-success {
            background-color: rgba(52, 211, 153, 0.15);
            color: var(--success);
            border: 1px solid rgba(52, 211, 153, 0.3);
        }

        /* Timeline */
        .timeline {
            position: relative;
            padding-left: 2rem;
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 0.5rem;
            top: 0.5rem;
            bottom: 0.5rem;
            width: 2px;
            background: linear-gradient(to bottom, var(--border-strong), var(--border), var(--border-strong));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding-left: 2rem;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -1.85rem;
            top: 0.5rem;
            width: 0.8rem;
            height: 0.8rem;
            border-radius: 50%;
            background-color: var(--primary);
            border: 2px solid var(--bg);
            box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.3);
            z-index: 1;
        }

        .timeline-item.accent-dot::before {
            background-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.3);
        }

        .timeline-item.secondary-dot::before {
            background-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(255, 178, 36, 0.3);
        }

        .timeline-date {
            font-family: var(--font-mono);
            font-size: 0.8rem;
            color: var(--secondary);
            font-weight: 600;
            letter-spacing: 0.02em;
        }

        .timeline-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text);
            margin: 0.3rem 0;
            line-height: 1.4;
        }

        .timeline-text {
            color: var(--muted);
            font-size: 0.92rem;
            line-height: 1.8;
        }

        /* Trend bar */
        .trend-bar-wrap {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .trend-bar-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            min-width: 80px;
            white-space: nowrap;
        }

        .trend-bar-track {
            flex: 1;
            height: 10px;
            background-color: var(--surface-2);
            border-radius: 999px;
            overflow: hidden;
        }

        .trend-bar-fill {
            height: 100%;
            border-radius: 999px;
            transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
            background: linear-gradient(90deg, var(--primary), var(--primary-hover));
        }

        .trend-bar-fill.accent-fill {
            background: linear-gradient(90deg, var(--accent), #5eead4);
        }

        .trend-bar-fill.secondary-fill {
            background: linear-gradient(90deg, var(--secondary), #ffc94d);
        }

        .trend-bar-value {
            font-family: var(--font-mono);
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            min-width: 48px;
            text-align: right;
        }

        /* Stat number */
        .stat-number {
            font-family: var(--font-mono);
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1;
        }

        .stat-label {
            font-size: 0.8rem;
            color: var(--muted);
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .stat-update {
            font-size: 0.72rem;
            color: var(--muted);
            font-family: var(--font-mono);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            background-color: var(--surface);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: border-color var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-strong);
        }

        .faq-item.open {
            border-color: var(--accent);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.25rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            user-select: none;
            transition: color var(--transition);
            min-height: 44px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

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

        .faq-icon {
            flex-shrink: 0;
            color: var(--muted);
            transition: transform var(--transition), color var(--transition);
            font-size: 0.8rem;
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            padding: 0 1.25rem 1.25rem;
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.8;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* Form */
        .subscribe-form .form-group {
            margin-bottom: 1rem;
        }

        .subscribe-form label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.4rem;
        }

        .subscribe-form input,
        .subscribe-form select {
            width: 100%;
            background-color: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1rem;
            color: var(--text);
            font-size: 0.9rem;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .subscribe-form input:focus,
        .subscribe-form select:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.2);
        }

        .subscribe-form select option {
            background-color: var(--surface-2);
            color: var(--text);
        }

        /* Footer */
        .site-footer {
            background-color: #0b0e12;
            border-top: 1px solid var(--border);
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }

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

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
                gap: 2rem;
            }
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 0.75rem;
        }

        .footer-desc {
            color: var(--muted);
            font-size: 0.88rem;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

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

        .footer-col li {
            margin-bottom: 0.5rem;
        }

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

        .footer-col a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 1.25rem;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            align-items: flex-start;
            font-size: 0.82rem;
            color: var(--muted);
        }

        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
                align-items: center;
            }
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: var(--muted);
            font-size: 0.82rem;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        /* Image cover */
        .image-cover {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }

        .image-cover-wrap {
            position: relative;
            border-radius: var(--radius-sm);
            overflow: hidden;
            background-color: var(--surface-2);
            border: 1px solid var(--border);
        }

        /* Responsive helpers */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }

        @media (min-width: 640px) {
            .grid-2 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .grid-3 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }

        @media (min-width: 640px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .grid-4 {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 640px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        /* Version comparison table */
        .version-compare {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }

        @media (min-width: 768px) {
            .version-compare {
                grid-template-columns: 1fr auto 1fr;
                align-items: stretch;
            }
        }

        .version-compare-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 1.5rem;
            transition: all var(--transition);
        }

        .version-compare-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow);
        }

        .version-compare-vs {
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--secondary);
            font-family: var(--font-mono);
            letter-spacing: 0.05em;
        }

        .metric-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.5rem 0;
            border-bottom: 1px solid var(--border);
        }

        .metric-row:last-child {
            border-bottom: none;
        }

        .metric-name {
            color: var(--muted);
            font-size: 0.85rem;
        }

        .metric-value {
            font-family: var(--font-mono);
            font-weight: 600;
            font-size: 0.95rem;
        }

        .metric-value.up {
            color: var(--success);
        }

        .metric-value.down {
            color: var(--danger);
        }

        .metric-value.neutral {
            color: var(--secondary);
        }

        /* Data source note */
        .data-note-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .data-note-list li {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--border);
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .data-note-list li:last-child {
            border-bottom: none;
        }

        .data-note-list .note-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            margin-top: 0.1rem;
        }

        .note-icon.primary-icon {
            background-color: rgba(229, 72, 77, 0.2);
            color: var(--primary);
        }

        .note-icon.secondary-icon {
            background-color: rgba(255, 178, 36, 0.2);
            color: var(--secondary);
        }

        .note-icon.accent-icon {
            background-color: rgba(45, 212, 191, 0.2);
            color: var(--accent);
        }

        .note-icon.danger-icon {
            background-color: rgba(248, 113, 113, 0.2);
            color: var(--danger);
        }

        /* H1 for category page */
        .page-h1 {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        /* Misc */
        .text-accent {
            color: var(--accent);
        }

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

        .text-secondary {
            color: var(--secondary);
        }

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

        .font-mono {
            font-family: var(--font-mono);
        }

/* roulang page: category6 */
:root {
            --bg: #0E1116;
            --surface: #171D26;
            --surface-2: #1F2834;
            --border: #2C3848;
            --border-strong: #3A4A5E;
            --primary: #E5484D;
            --primary-hover: #FF6B70;
            --secondary: #FFB224;
            --accent: #2DD4BF;
            --text: #F4F7FB;
            --muted: #9BA8BA;
            --danger: #F87171;
            --success: #34D399;
            --radius: 14px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 18px 45px rgba(0, 0, 0, 0.45);
            --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
            --font-mono: "JetBrains Mono", "SFMono-Regular", "Consolas", monospace;
            --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 1rem;
            overflow-x: hidden;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition), border-color var(--transition);
        }

        a:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            outline: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }

        @media (min-width: 640px) {
            .container {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* Header/Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(14, 17, 22, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .nav-container {
            display: flex;
            align-items: center;
            gap: 1.25rem;
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
            flex-wrap: nowrap;
            min-height: 64px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: -0.01em;
        }

        .nav-logo:hover {
            color: var(--primary-hover);
            text-decoration: none;
        }

        .nav-logo-icon {
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--primary), #b9333a);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }

        .nav-channels {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .nav-channels::-webkit-scrollbar {
            display: none;
        }

        .nav-channel {
            display: inline-flex;
            align-items: center;
            padding: 0.4rem 0.75rem;
            border-radius: 8px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            white-space: nowrap;
            transition: color var(--transition), background-color var(--transition);
            flex-shrink: 0;
        }

        .nav-channel:hover {
            color: var(--text);
            background-color: var(--surface-2);
            text-decoration: none;
        }

        .nav-channel.active {
            color: var(--primary);
            border-bottom: 2px solid var(--primary);
            border-radius: 0;
            padding-bottom: 0.25rem;
            margin-bottom: -0.25rem;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .nav-search {
            display: flex;
            align-items: center;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 999px;
            padding: 0.35rem 0.8rem;
            gap: 0.5rem;
            width: 210px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .nav-search:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
        }

        .nav-search input {
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 0.875rem;
            width: 100%;
            outline: none;
        }

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

        .nav-search-icon {
            color: var(--muted);
            flex-shrink: 0;
            font-size: 0.8rem;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.55rem 1.25rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            white-space: nowrap;
            text-decoration: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #FF6B70);
            color: #fff;
            box-shadow: 0 4px 14px rgba(229, 72, 77, 0.35);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-hover), #FF858A);
            box-shadow: 0 6px 20px rgba(229, 72, 77, 0.5);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }

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

        .btn-primary:focus-visible {
            box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.4);
        }

        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text);
        }

        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            text-decoration: none;
            transform: translateY(-1px);
        }

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

        .btn-outline:focus-visible {
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.3);
        }

        .btn-sm {
            padding: 0.4rem 0.9rem;
            font-size: 0.8rem;
            border-radius: 8px;
        }

        /* Mobile Menu Toggle */
        .mobile-menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: 8px;
            padding: 0.5rem 0.65rem;
            color: var(--text);
            cursor: pointer;
            flex-shrink: 0;
            transition: border-color var(--transition), color var(--transition);
            font-size: 1rem;
        }

        .mobile-menu-toggle:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .mobile-menu-panel {
            display: none;
            padding: 0 0 1rem 0;
            border-top: 1px solid var(--border);
            flex-direction: column;
            gap: 0.75rem;
            background-color: rgba(14, 17, 22, 0.98);
        }

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

        .mobile-nav-channels {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }

        .mobile-nav-channel {
            display: block;
            padding: 0.6rem 0.75rem;
            color: var(--muted);
            font-size: 0.95rem;
            border-radius: 8px;
            transition: color var(--transition), background-color var(--transition);
        }

        .mobile-nav-channel:hover {
            color: var(--text);
            background-color: var(--surface-2);
            text-decoration: none;
        }

        .mobile-nav-channel.active {
            color: var(--primary);
            background-color: rgba(229, 72, 77, 0.1);
            border-left: 3px solid var(--primary);
            border-radius: 0;
        }

        .mobile-actions {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--muted);
            flex-wrap: wrap;
        }

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

        .breadcrumb a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .breadcrumb-separator {
            color: var(--border-strong);
            font-size: 0.7rem;
        }

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

        /* Section styles */
        .section {
            padding: 3.5rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 5rem 0;
            }
        }

        .section-alt {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
            color: var(--text);
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--muted);
            line-height: 1.8;
            max-width: 800px;
            margin-bottom: 2rem;
        }

        .section-head {
            margin-bottom: 2.5rem;
        }

        /* Card base */
        .card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: all var(--transition);
            overflow: hidden;
        }

        .card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        /* Guide Card */
        .guide-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

        .guide-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .guide-card-img {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 300ms ease;
        }

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

        .guide-card-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(14, 17, 22, 0.85));
        }

        .guide-card-body {
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            flex: 1;
        }

        .guide-card-title {
            font-size: 1.15rem;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text);
        }

        .guide-card-summary {
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.75;
            flex: 1;
        }

        .guide-card-meta {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.8rem;
            color: var(--muted);
            margin-top: auto;
        }

        .guide-card-meta i {
            font-size: 0.7rem;
            color: var(--primary);
        }

        /* Badge */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 600;
            white-space: nowrap;
        }

        .badge-primary {
            background-color: rgba(229, 72, 77, 0.15);
            color: var(--primary);
            border: 1px solid rgba(229, 72, 77, 0.3);
        }

        .badge-accent {
            background-color: rgba(45, 212, 191, 0.1);
            color: var(--accent);
            border: 1px solid rgba(45, 212, 191, 0.25);
        }

        .badge-secondary {
            background-color: rgba(255, 178, 36, 0.1);
            color: var(--secondary);
            border: 1px solid rgba(255, 178, 36, 0.25);
        }

        .badge-muted {
            background-color: rgba(155, 168, 186, 0.1);
            color: var(--muted);
            border: 1px solid var(--border);
        }

        /* Term list */
        .term-item {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            padding: 1.25rem 1.5rem;
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .term-item:hover {
            border-color: var(--border-strong);
            background-color: var(--surface-2);
            transform: translateY(-2px);
        }

        .term-name {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .term-name i {
            color: var(--accent);
            font-size: 0.85rem;
        }

        .term-def {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
        }

        /* Tool item */
        .tool-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .tool-item:hover {
            border-color: var(--accent);
            background-color: var(--surface-2);
            transform: translateX(4px);
        }

        .tool-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .tool-icon.primary {
            background-color: rgba(229, 72, 77, 0.15);
            color: var(--primary);
        }

        .tool-icon.accent {
            background-color: rgba(45, 212, 191, 0.12);
            color: var(--accent);
        }

        .tool-icon.secondary {
            background-color: rgba(255, 178, 36, 0.12);
            color: var(--secondary);
        }

        .tool-content {
            flex: 1;
        }

        .tool-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            margin-bottom: 0.25rem;
        }

        .tool-desc {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.65;
        }

        /* Reading tip */
        .reading-tip {
            display: flex;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            background-color: rgba(45, 212, 191, 0.06);
            border: 1px solid rgba(45, 212, 191, 0.2);
            border-radius: var(--radius-sm);
            align-items: flex-start;
        }

        .reading-tip-icon {
            color: var(--accent);
            font-size: 1rem;
            flex-shrink: 0;
            margin-top: 0.2rem;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .faq-item {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: border-color var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border-strong);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1rem 1.25rem;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text);
            min-height: 44px;
            user-select: none;
            transition: color var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

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

        .faq-question-icon {
            font-size: 0.8rem;
            color: var(--muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            display: none;
            padding: 0 1.25rem 1.25rem;
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        /* CTA Form */
        .cta-section {
            background: linear-gradient(135deg, var(--surface-2), var(--surface));
            border: 1px solid var(--border-strong);
            border-radius: var(--radius);
            padding: 2.5rem 2rem;
            box-shadow: var(--shadow);
        }

        @media (min-width: 768px) {
            .cta-section {
                padding: 3rem 3.5rem;
            }
        }

        .form-input {
            background-color: var(--bg);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-sm);
            padding: 0.7rem 1rem;
            color: var(--text);
            font-size: 0.95rem;
            width: 100%;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

        .form-input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
        }

        .form-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            display: block;
            margin-bottom: 0.4rem;
        }

        .privacy-note {
            font-size: 0.78rem;
            color: var(--muted);
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            padding: 3rem 0 1.5rem;
            margin-top: 0;
        }

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

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
                gap: 2.5rem;
            }
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1fr;
                gap: 3rem;
            }
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 0.75rem;
        }

        .footer-desc {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
            max-width: 400px;
        }

        .footer-col-title {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

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

        .footer-col ul a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-bottom {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border);
            align-items: center;
            text-align: center;
            font-size: 0.82rem;
            color: var(--muted);
        }

        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
                justify-content: space-between;
                text-align: left;
            }
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .footer-links a {
            color: var(--muted);
            font-size: 0.82rem;
        }

        .footer-links a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        .footer-links span {
            color: var(--border-strong);
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .nav-channels {
                gap: 0.25rem;
            }
            .nav-channel {
                padding: 0.35rem 0.55rem;
                font-size: 0.82rem;
            }
            .nav-search {
                width: 160px;
            }
        }

        @media (max-width: 767px) {
            .nav-container {
                flex-wrap: nowrap;
            }
            .nav-channels {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .mobile-menu-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .btn-outline.desktop-only {
                display: none;
            }
            .section {
                padding: 2.5rem 0;
            }
            .guide-card-img {
                height: 180px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 2rem 0;
            }
            .container {
                padding-left: 0.75rem;
                padding-right: 0.75rem;
            }
            .guide-card-img {
                height: 160px;
            }
            .btn {
                padding: 0.5rem 1rem;
                font-size: 0.85rem;
            }
        }

/* roulang page: category4 */
:root {
      --bg: #0E1116;
      --surface: #171D26;
      --surface-2: #1F2834;
      --border: #2C3848;
      --border-strong: #3A4A5E;
      --primary: #E5484D;
      --primary-hover: #FF6B70;
      --secondary: #FFB224;
      --accent: #2DD4BF;
      --text: #F4F7FB;
      --muted: #9BA8BA;
      --danger: #F87171;
      --success: #34D399;
      --radius: 14px;
      --radius-sm: 10px;
      --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
      --shadow-hover: 0 18px 45px rgba(0, 0, 0, 0.45);
      --font-sans: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
      --font-mono: "JetBrains Mono", "SFMono-Regular", "Consolas", monospace;
      --transition: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    }
    html {
      scroll-behavior: smooth;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
    }
    body {
      font-family: var(--font-sans);
      background-color: var(--bg);
      color: var(--text);
      line-height: 1.75;
      font-size: 1rem;
      overflow-x: hidden;
    }
    a {
      color: var(--accent);
      text-decoration: none;
      transition: color var(--transition), border-color var(--transition);
    }
    a:hover {
      color: var(--primary-hover);
      text-decoration: underline;
    }
    img {
      max-width: 100%;
      height: auto;
      display: block;
    }
    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
      color: inherit;
      outline: none;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
    @media (min-width: 1024px) {
      .container {
        padding-left: 2rem;
        padding-right: 2rem;
      }
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background-color: rgba(14, 17, 22, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
    }
    .nav-container {
      display: flex;
      align-items: center;
      gap: 1.25rem;
      padding-top: 0.75rem;
      padding-bottom: 0.75rem;
      flex-wrap: nowrap;
      min-height: 64px;
    }
    .nav-logo {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-weight: 800;
      font-size: 1.15rem;
      color: var(--text);
      white-space: nowrap;
      flex-shrink: 0;
      letter-spacing: -0.01em;
    }
    .nav-logo:hover {
      color: var(--primary-hover);
      text-decoration: none;
    }
    .nav-logo-icon {
      width: 28px;
      height: 28px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--primary), #b9333a);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 800;
      color: #fff;
      flex-shrink: 0;
    }
    .nav-channels {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      flex: 1;
      justify-content: center;
      flex-wrap: nowrap;
      overflow-x: auto;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }
    .nav-channels::-webkit-scrollbar {
      display: none;
    }
    .nav-channel {
      display: inline-flex;
      align-items: center;
      padding: 0.4rem 0.75rem;
      border-radius: 8px;
      font-size: 0.9rem;
      font-weight: 500;
      color: var(--muted);
      white-space: nowrap;
      transition: color var(--transition), background-color var(--transition);
      flex-shrink: 0;
    }
    .nav-channel:hover {
      color: var(--text);
      background-color: var(--surface-2);
      text-decoration: none;
    }
    .nav-channel.active {
      color: var(--primary);
      border-bottom: 2px solid var(--primary);
      border-radius: 0;
      padding-bottom: 0.25rem;
      margin-bottom: -0.25rem;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      flex-shrink: 0;
    }
    .nav-search {
      display: flex;
      align-items: center;
      background: transparent;
      border: 1px solid var(--border-strong);
      border-radius: 999px;
      padding: 0.35rem 0.8rem;
      gap: 0.5rem;
      width: 210px;
      transition: border-color var(--transition), box-shadow var(--transition);
    }
    .nav-search:focus-within {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
    }
    .nav-search input {
      background: transparent;
      border: none;
      color: var(--text);
      font-size: 0.875rem;
      width: 100%;
      outline: none;
    }
    .nav-search input::placeholder {
      color: var(--muted);
    }
    .nav-search-icon {
      color: var(--muted);
      flex-shrink: 0;
      font-size: 0.8rem;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.55rem 1.25rem;
      border-radius: var(--radius-sm);
      font-weight: 600;
      font-size: 0.9rem;
      cursor: pointer;
      transition: all var(--transition);
      border: none;
      white-space: nowrap;
    }
    .btn-primary {
      background: var(--primary);
      color: #fff;
    }
    .btn-primary:hover {
      background: var(--primary-hover);
      box-shadow: 0 8px 20px rgba(229, 72, 77, 0.3);
      transform: translateY(-1px);
      text-decoration: none;
      color: #fff;
    }
    .btn-primary:active {
      transform: scale(0.98);
    }
    .btn-outline {
      background: transparent;
      border: 1px solid var(--border-strong);
      color: var(--text);
    }
    .btn-outline:hover {
      border-color: var(--accent);
      color: var(--text);
      background: rgba(45, 212, 191, 0.06);
      text-decoration: none;
    }
    .btn-highlight {
      background: linear-gradient(135deg, var(--primary), #FF6B70);
      color: #fff;
      box-shadow: 0 6px 18px rgba(229, 72, 77, 0.25);
    }
    .btn-highlight:hover {
      box-shadow: 0 10px 25px rgba(229, 72, 77, 0.4);
      transform: translateY(-1px);
      text-decoration: none;
      color: #fff;
    }
    .btn-highlight:active {
      transform: scale(0.98);
    }
    .card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    }
    .card:hover {
      border-color: var(--border-strong);
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .stat-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 1.25rem;
      box-shadow: var(--shadow);
    }
    .stat-value {
      font-family: var(--font-mono);
      font-weight: 700;
      font-size: 1.75rem;
      color: var(--secondary);
      line-height: 1.2;
    }
    .stat-label {
      font-size: 0.875rem;
      color: var(--muted);
    }
    .tag {
      display: inline-block;
      padding: 0.2rem 0.6rem;
      border-radius: 999px;
      font-size: 0.75rem;
      font-weight: 600;
      background: var(--surface-2);
      color: var(--accent);
      border: 1px solid var(--border);
    }
    .rank-row {
      display: grid;
      grid-template-columns: 48px 1fr 100px 140px;
      align-items: center;
      gap: 0.75rem;
      padding: 0.85rem 0.75rem;
      border-bottom: 1px solid var(--border);
      transition: background var(--transition);
    }
    .rank-row:hover {
      background: var(--surface-2);
    }
    .rank-number {
      font-family: var(--font-mono);
      font-weight: 700;
      color: var(--muted);
    }
    .rank-number.top {
      color: var(--secondary);
    }
    .trend-bar {
      height: 6px;
      border-radius: 999px;
      background: var(--border);
      overflow: hidden;
    }
    .trend-fill {
      height: 100%;
      border-radius: 999px;
      background: var(--accent);
    }
    .trend-fill.primary {
      background: var(--primary);
    }
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-size: 0.875rem;
      color: var(--muted);
    }
    .breadcrumb a {
      color: var(--muted);
    }
    .breadcrumb a:hover {
      color: var(--accent);
      text-decoration: none;
    }
    .faq-item {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--surface);
      overflow: hidden;
    }
    .faq-question {
      padding: 1rem 1.25rem;
      background: var(--surface);
      cursor: pointer;
      font-weight: 600;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 1rem;
      transition: background var(--transition);
    }
    .faq-question:hover {
      background: var(--surface-2);
    }
    .faq-answer {
      padding: 0 1.25rem 1.25rem;
      color: var(--muted);
      line-height: 1.8;
      display: none;
    }
    .faq-item.open .faq-answer {
      display: block;
    }
    .faq-item.open .faq-question {
      color: var(--primary);
    }
    .site-footer {
      background: #0B0E12;
      border-top: 1px solid var(--border);
      padding: 2.5rem 0 1.5rem;
      margin-top: 3rem;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 2rem;
      align-items: start;
    }
    .footer-brand .footer-logo {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      font-weight: 700;
      font-size: 1.1rem;
      color: var(--text);
    }
    .footer-desc {
      margin-top: 0.75rem;
      color: var(--muted);
      font-size: 0.9rem;
      line-height: 1.7;
    }
    .footer-col-title {
      font-weight: 700;
      color: var(--text);
      margin-bottom: 0.75rem;
    }
    .footer-col ul {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-col li {
      margin-bottom: 0.5rem;
    }
    .footer-col a {
      color: var(--muted);
      font-size: 0.9rem;
    }
    .footer-col a:hover {
      color: var(--accent);
      text-decoration: none;
    }
    .footer-bottom {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 1rem;
      margin-top: 2rem;
      padding-top: 1.5rem;
      border-top: 1px solid var(--border);
      color: var(--muted);
      font-size: 0.85rem;
    }
    .footer-links {
      display: flex;
      align-items: center;
      gap: 0.5rem;
    }
    .form-group {
      display: flex;
      flex-direction: column;
      gap: 0.5rem;
    }
    .form-group label {
      font-size: 0.875rem;
      color: var(--muted);
    }
    .form-input, .form-select {
      background: transparent;
      border: 1px solid var(--border-strong);
      border-radius: var(--radius-sm);
      padding: 0.6rem 1rem;
      color: var(--text);
      transition: border-color var(--transition), box-shadow var(--transition);
    }
    .form-input:focus, .form-select:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15);
    }
    .privacy-tip {
      font-size: 0.75rem;
      color: var(--muted);
    }
    @media (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .nav-search {
        width: 150px;
      }
    }
    @media (max-width: 768px) {
      .nav-container {
        flex-wrap: wrap;
        gap: 0.75rem;
      }
      .nav-channels {
        order: 3;
        width: 100%;
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 0.5rem;
      }
      .nav-actions {
        margin-left: auto;
      }
      .nav-search {
        width: 140px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
      }
      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
      .rank-row {
        grid-template-columns: 36px 1fr 70px 90px;
        gap: 0.4rem;
        font-size: 0.85rem;
      }
    }
    @media (max-width: 520px) {
      .nav-search {
        width: 100%;
      }
      .nav-actions {
        width: 100%;
        justify-content: space-between;
      }
      .rank-row {
        grid-template-columns: 32px 1fr 60px;
      }
      .rank-row .trend-cell {
        display: none;
      }
    }