/* roulang page: index */
:root {
            --c-yellow: #F7C600;
            --c-yellow-light: #FFD447;
            --c-rose: #F43F5E;
            --c-purple: #A855F7;
            --c-orange: #FB923C;
            --bg-primary: #0B0A0F;
            --bg-secondary: #12101A;
            --bg-card: #17151F;
            --text-primary: #F5F3E8;
            --text-secondary: #A8A29E;
            --border-glow: rgba(247, 198, 0, 0.18);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.35);
            --gradient-brand: linear-gradient(135deg, #F7C600 0%, #F43F5E 55%, #A855F7 100%);
            --gradient-subtle: linear-gradient(135deg, rgba(247, 198, 0, 0.08) 0%, rgba(244, 63, 94, 0.06) 50%, rgba(168, 85, 247, 0.08) 100%);
            --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
        }

        *,
        *::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-display);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, opacity 0.25s ease;
        }

        a:hover {
            opacity: 0.85;
        }

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

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

        button {
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.3s ease, filter 0.3s ease, opacity 0.2s ease;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--c-purple);
            outline-offset: 2px;
            border-radius: 8px;
        }

        button:active {
            transform: translateY(1px);
            filter: brightness(0.92);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== Header / Dock Navigation ========== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 100;
            padding: 12px 16px;
            pointer-events: none;
        }

        .dock-nav {
            pointer-events: auto;
            max-width: 960px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 8px 12px 8px 20px;
            background: rgba(18, 16, 26, 0.86);
            border: 1px solid var(--border-glow);
            border-radius: 999px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5), 0 0 24px rgba(247, 198, 0, 0.06);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
        }

        .dock-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
            white-space: nowrap;
            color: var(--text-primary);
        }

        .dock-logo .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--gradient-brand);
            flex-shrink: 0;
        }

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

        .dock-menu a {
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .dock-menu a:hover {
            color: var(--text-primary);
            background: rgba(247, 198, 0, 0.08);
        }

        .dock-menu a.active {
            color: var(--c-yellow);
            background: rgba(247, 198, 0, 0.12);
            font-weight: 600;
        }

        .dock-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(11, 10, 15, 0.7);
            border: 1px solid rgba(247, 198, 0, 0.15);
            border-radius: 999px;
            padding: 6px 12px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .dock-search:focus-within {
            border-color: rgba(247, 198, 0, 0.45);
            box-shadow: 0 0 16px rgba(247, 198, 0, 0.15);
        }

        .dock-search input {
            width: 110px;
            font-size: 13px;
            color: var(--text-primary);
            background: transparent;
            transition: width 0.3s ease;
        }

        .dock-search input::placeholder {
            color: var(--text-secondary);
            opacity: 0.8;
        }

        .dock-search input:focus {
            width: 150px;
        }

        .dock-search button {
            color: var(--c-yellow);
            font-size: 14px;
            padding: 4px 6px;
            border-radius: 50%;
            transition: all 0.3s ease;
        }

        .dock-search button:hover {
            background: rgba(247, 198, 0, 0.12);
        }

        .dock-cta {
            padding: 10px 20px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border-radius: 999px;
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(247, 198, 0, 0.25);
            transition: all 0.3s ease;
        }

        .dock-cta:hover {
            box-shadow: 0 6px 28px rgba(247, 198, 0, 0.4);
            filter: brightness(1.05);
        }

        /* Mobile bottom dock */
        .mobile-dock {
            display: none;
        }

        /* ========== Sections ========== */
        section {
            padding: 56px 0;
            position: relative;
        }

        section:nth-of-type(odd):not(.hero-section) {
            background-color: var(--bg-secondary);
        }

        section:nth-of-type(even):not(.hero-section) {
            background-color: var(--bg-primary);
        }

        .section-label {
            display: inline-block;
            padding: 6px 14px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--c-yellow);
            background: rgba(247, 198, 0, 0.1);
            border: 1px solid rgba(247, 198, 0, 0.2);
            border-radius: 999px;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 28px;
        }

        /* ========== Cards ========== */
        .card {
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.12);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: transform 0.35s ease, border-color 0.3s ease, box-shadow 0.35s ease;
            overflow: hidden;
        }

        .card:hover {
            transform: translateY(-4px);
            border-color: rgba(247, 198, 0, 0.35);
            box-shadow: 0 0 28px rgba(247, 198, 0, 0.15), 0 24px 48px rgba(0, 0, 0, 0.4);
        }

        .card-padding {
            padding: 26px 28px;
        }

        .card-sm {
            border-radius: var(--radius-md);
            padding: 18px 20px;
        }

        /* ========== Badges ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            background: rgba(247, 198, 0, 0.1);
            color: var(--c-yellow);
            border: 1px solid rgba(247, 198, 0, 0.2);
            white-space: nowrap;
        }

        .badge-top {
            background: var(--gradient-brand);
            color: #fff;
            border: none;
            font-weight: 700;
            letter-spacing: 0.5px;
        }

        .badge-rose {
            background: rgba(244, 63, 94, 0.12);
            color: var(--c-rose);
            border: 1px solid rgba(244, 63, 94, 0.25);
        }

        .badge-purple {
            background: rgba(168, 85, 247, 0.12);
            color: #c084fc;
            border: 1px solid rgba(168, 85, 247, 0.25);
        }

        .badge-orange {
            background: rgba(251, 146, 60, 0.12);
            color: var(--c-orange);
            border: 1px solid rgba(251, 146, 60, 0.25);
        }

        /* ========== Buttons ========== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border-radius: 999px;
            box-shadow: 0 6px 20px rgba(247, 198, 0, 0.25);
            transition: all 0.35s ease;
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            box-shadow: 0 8px 32px rgba(247, 198, 0, 0.4);
            filter: brightness(1.05);
            transform: translateY(-2px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            background: var(--bg-card);
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 500;
            border-radius: 999px;
            border: 1px solid rgba(247, 198, 0, 0.3);
            transition: all 0.3s ease;
        }

        .btn-secondary:hover {
            border-color: rgba(247, 198, 0, 0.55);
            box-shadow: 0 0 18px rgba(247, 198, 0, 0.15);
            background: rgba(247, 198, 0, 0.06);
        }

        /* ========== Hero ========== */
        .hero-section {
            padding: 40px 0 60px;
            background:
                radial-gradient(ellipse 600px 400px at 85% 20%, rgba(168, 85, 247, 0.15), transparent 70%),
                radial-gradient(ellipse 500px 350px at 10% 80%, rgba(247, 198, 0, 0.1), transparent 70%),
                var(--bg-primary);
            min-height: 80vh;
            display: flex;
            align-items: center;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-title {
            font-size: 40px;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 32px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

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

        .hero-stat .stat-num {
            font-size: 28px;
            font-weight: 700;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .hero-quick-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .hero-quick-card {
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.15);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            transition: all 0.3s ease;
            text-align: left;
        }

        .hero-quick-card:hover {
            border-color: rgba(247, 198, 0, 0.4);
            box-shadow: 0 0 18px rgba(247, 198, 0, 0.12);
            transform: translateY(-2px);
        }

        .hero-quick-card .quick-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(247, 198, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-yellow);
            font-size: 16px;
            margin-bottom: 4px;
        }

        .hero-quick-card .quick-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .hero-quick-card .quick-sub {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ========== Metric Cards ========== */
        .metric-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }

        .metric-card {
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.1);
            border-radius: var(--radius-md);
            padding: 20px 18px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .metric-card:hover {
            border-color: rgba(247, 198, 0, 0.35);
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(247, 198, 0, 0.1);
        }

        .metric-num {
            font-size: 34px;
            font-weight: 700;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .metric-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        .metric-trend {
            font-size: 12px;
            font-weight: 600;
            margin-top: 6px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .trend-up {
            color: #4ade80;
        }

        .trend-down {
            color: var(--c-rose);
        }

        /* ========== Service Matrix ========== */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-top: 8px;
        }

        .service-card {
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.12);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.35s ease;
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            transform: translateY(-4px);
            border-color: rgba(247, 198, 0, 0.35);
            box-shadow: 0 0 28px rgba(247, 198, 0, 0.12), var(--shadow-card);
        }

        .service-card .card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

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

        .service-card .card-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

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

        .service-card.featured {
            grid-column: span 2;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
        }

        .service-card.featured .card-img {
            height: 100%;
            min-height: 200px;
        }

        /* ========== Progress Section ========== */
        .progress-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .progress-item {
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.1);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            transition: all 0.3s ease;
        }

        .progress-item:hover {
            border-color: rgba(247, 198, 0, 0.3);
        }

        .progress-status {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            flex-shrink: 0;
        }

        .status-live {
            background: #4ade80;
            box-shadow: 0 0 12px rgba(74, 222, 128, 0.5);
        }

        .status-building {
            background: var(--c-orange);
            box-shadow: 0 0 12px rgba(251, 146, 60, 0.5);
        }

        .status-soon {
            background: var(--c-yellow);
            box-shadow: 0 0 12px rgba(247, 198, 0, 0.5);
        }

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

        .progress-info h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .progress-info p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .progress-bar {
            width: 120px;
            height: 6px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .progress-bar-fill {
            height: 100%;
            border-radius: 999px;
            background: var(--gradient-brand);
            transition: width 1s ease;
        }

        /* ========== Timeline ========== */
        .timeline {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
            padding-left: 28px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 4px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: linear-gradient(180deg, var(--c-yellow), var(--c-rose), var(--c-purple));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            padding: 16px 0 16px 16px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 22px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--gradient-brand);
            box-shadow: 0 0 12px rgba(247, 198, 0, 0.4);
        }

        .timeline-item .time-tag {
            display: inline-block;
            padding: 2px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            background: rgba(247, 198, 0, 0.1);
            color: var(--c-yellow);
            margin-bottom: 6px;
        }

        .timeline-item h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .timeline-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Compare ========== */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .compare-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            border: 1px solid rgba(247, 198, 0, 0.12);
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .compare-card:hover {
            border-color: rgba(247, 198, 0, 0.3);
        }

        .compare-card.highlight {
            border-color: rgba(247, 198, 0, 0.45);
            background: linear-gradient(160deg, rgba(247, 198, 0, 0.06) 0%, var(--bg-card) 60%);
        }

        .compare-card .vs-badge {
            position: absolute;
            top: 16px;
            right: 16px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 700;
            border-radius: 999px;
            background: var(--gradient-brand);
            color: #fff;
        }

        .compare-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .compare-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .compare-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .compare-list li i {
            width: 18px;
            text-align: center;
            flex-shrink: 0;
        }

        .compare-list li .icon-yes {
            color: #4ade80;
        }

        .compare-list li .icon-no {
            color: var(--c-rose);
        }

        .compare-list li .icon-warn {
            color: var(--c-orange);
        }

        /* ========== Rank List ========== */
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 18px;
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.08);
            border-radius: var(--radius-md);
            transition: all 0.3s ease;
        }

        .rank-item:hover {
            border-color: rgba(247, 198, 0, 0.25);
            background: rgba(23, 21, 31, 0.9);
        }

        .rank-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            flex-shrink: 0;
        }

        .rank-num.top1,
        .rank-num.top2,
        .rank-num.top3 {
            background: var(--gradient-brand);
            color: #fff;
            box-shadow: 0 4px 14px rgba(247, 198, 0, 0.25);
        }

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

        .rank-info h4 {
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rank-info .rank-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 4px;
        }

        .rank-heat {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-yellow);
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ========== News List ========== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
        }

        .news-card {
            display: grid;
            grid-template-columns: 120px 1fr;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.1);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
            padding: 12px;
        }

        .news-card:hover {
            border-color: rgba(247, 198, 0, 0.3);
            transform: translateY(-2px);
        }

        .news-card .news-img {
            width: 120px;
            height: 84px;
            object-fit: cover;
            border-radius: var(--radius-sm);
        }

        .news-card .news-body {
            display: flex;
            flex-direction: column;
            gap: 4px;
            min-width: 0;
        }

        .news-card .news-title {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* ========== Scene Matrix ========== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }

        .scene-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid rgba(247, 198, 0, 0.12);
            transition: all 0.3s ease;
        }

        .scene-card:hover {
            transform: translateY(-4px);
            border-color: rgba(247, 198, 0, 0.35);
            box-shadow: 0 0 24px rgba(247, 198, 0, 0.1);
        }

        .scene-card .scene-img {
            width: 100%;
            height: 120px;
            object-fit: cover;
        }

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

        .scene-card h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .scene-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== Tools ========== */
        .tools-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 18px;
        }

        .tool-main {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(247, 198, 0, 0.15);
            padding: 28px 30px;
            transition: all 0.3s ease;
        }

        .tool-main:hover {
            border-color: rgba(247, 198, 0, 0.35);
        }

        .tool-main h4 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .tool-main p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .tool-side {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .tool-mini {
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.1);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            transition: all 0.3s ease;
        }

        .tool-mini:hover {
            border-color: rgba(247, 198, 0, 0.3);
        }

        .tool-mini .tool-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(247, 198, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-yellow);
            font-size: 15px;
            flex-shrink: 0;
        }

        .tool-mini h5 {
            font-size: 14px;
            font-weight: 600;
        }

        .tool-mini p {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* ========== Quick Answers ========== */
        .qa-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }

        .qa-item {
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.1);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: all 0.3s ease;
        }

        .qa-item:hover {
            border-color: rgba(247, 198, 0, 0.3);
        }

        .qa-item h5 {
            font-size: 14px;
            font-weight: 600;
            color: var(--c-yellow);
            margin-bottom: 6px;
        }

        .qa-item p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

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

        .guarantee-item {
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.1);
            border-radius: var(--radius-md);
            padding: 22px 18px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .guarantee-item:hover {
            border-color: rgba(247, 198, 0, 0.3);
            transform: translateY(-3px);
        }

        .guarantee-item .g-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(247, 198, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--c-yellow);
            font-size: 20px;
            margin: 0 auto 12px;
        }

        .guarantee-item h5 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .guarantee-item p {
            font-size: 12px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.1);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(247, 198, 0, 0.25);
        }

        .faq-question {
            width: 100%;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 14px;
            font-weight: 600;
            text-align: left;
            color: var(--text-primary);
            transition: all 0.3s ease;
            background: transparent;
            border: none;
            cursor: pointer;
        }

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

        .faq-question .faq-arrow {
            transition: transform 0.35s ease;
            color: var(--c-yellow);
            font-size: 13px;
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s ease, padding 0.35s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-answer p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(247, 198, 0, 0.1);
            color: var(--c-yellow);
            font-size: 13px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        /* ========== Form ========== */
        .form-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(247, 198, 0, 0.25);
            padding: 36px 40px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(160deg, rgba(247, 198, 0, 0.05) 0%, var(--bg-card) 50%, rgba(168, 85, 247, 0.04) 100%);
            box-shadow: 0 0 40px rgba(247, 198, 0, 0.08);
        }

        .form-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--gradient-brand);
            border-radius: 3px 3px 0 0;
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 20px;
        }

        .form-input {
            background: rgba(11, 10, 15, 0.8);
            border: 1px solid rgba(247, 198, 0, 0.18);
            border-radius: var(--radius-sm);
            padding: 14px 16px;
            font-size: 14px;
            color: var(--text-primary);
            transition: all 0.3s ease;
            width: 100%;
        }

        .form-input::placeholder {
            color: var(--text-secondary);
            opacity: 0.7;
        }

        .form-input:focus {
            border-color: rgba(247, 198, 0, 0.5);
            box-shadow: 0 0 18px rgba(247, 198, 0, 0.15);
            outline: none;
        }

        .form-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 20px;
            flex-wrap: wrap;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #060508;
            padding: 48px 0 28px;
            border-top: 1px solid rgba(247, 198, 0, 0.08);
        }

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

        .footer-brand .footer-logo {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 14px;
            color: var(--text-primary);
        }

        .footer-col a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            transition: all 0.3s ease;
        }

        .footer-col a:hover {
            color: var(--c-yellow);
            opacity: 1;
        }

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

        .footer-bottom p {
            font-size: 12px;
            color: var(--text-secondary);
        }

        /* ========== Word Cloud ========== */
        .word-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .word-tag {
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 500;
            border-radius: 999px;
            background: var(--bg-card);
            border: 1px solid rgba(247, 198, 0, 0.15);
            color: var(--text-secondary);
            transition: all 0.3s ease;
            cursor: default;
        }

        .word-tag:hover {
            border-color: rgba(247, 198, 0, 0.45);
            color: var(--c-yellow);
            background: rgba(247, 198, 0, 0.06);
            transform: translateY(-2px);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .metric-grid {
                grid-template-columns: repeat(3, 1fr);
            }

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

            .service-card.featured {
                grid-column: span 2;
            }

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

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

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

        @media (max-width: 768px) {
            .site-header {
                top: 8px;
                padding: 8px 10px;
            }

            .dock-nav {
                border-radius: 20px;
                padding: 10px 14px;
                flex-wrap: wrap;
                gap: 8px;
            }

            .dock-menu {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                gap: 2px;
                padding-bottom: 2px;
            }

            .dock-menu a {
                padding: 6px 12px;
                font-size: 13px;
            }

            .dock-search {
                display: none;
            }

            .dock-cta {
                padding: 8px 14px;
                font-size: 13px;
            }

            .hero-section {
                padding: 20px 0 40px;
                min-height: auto;
            }

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

            .hero-title {
                font-size: 28px;
            }

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

            .metric-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }

            .metric-num {
                font-size: 26px;
            }

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

            .service-card.featured {
                grid-column: span 1;
                display: flex;
                flex-direction: column;
            }

            .service-card.featured .card-img {
                min-height: 140px;
                height: auto;
            }

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

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

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

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

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

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

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

            .form-card {
                padding: 24px 20px;
            }

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

            .section-title {
                font-size: 24px;
            }

            section {
                padding: 40px 0;
            }

            .progress-item {
                flex-wrap: wrap;
                gap: 10px;
            }

            .progress-bar {
                width: 100%;
            }

            .rank-item {
                flex-wrap: wrap;
                gap: 10px;
            }

            .rank-num {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .hero-quick-grid {
                grid-template-columns: 1fr;
            }

            .metric-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

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

            .dock-logo {
                font-size: 14px;
            }

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

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

            .section-title {
                font-size: 20px;
            }

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

            .compare-card {
                padding: 20px 18px;
            }

            .news-card {
                grid-template-columns: 80px 1fr;
                gap: 10px;
                padding: 10px;
            }

            .news-card .news-img {
                width: 80px;
                height: 60px;
            }
        }

/* roulang page: category1 */
:root {
            --c-yellow: #F7C600;
            --c-yellow-light: #FFD447;
            --c-rose: #F43F5E;
            --c-purple: #A855F7;
            --c-orange: #FB923C;
            --bg-primary: #0B0A0F;
            --bg-secondary: #12101A;
            --bg-card: #17151F;
            --text-primary: #F5F3E8;
            --text-secondary: #A8A29E;
            --border-glow: rgba(247, 198, 0, 0.18);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.35);
            --gradient-brand: linear-gradient(135deg, #F7C600 0%, #F43F5E 55%, #A855F7 100%);
            --gradient-subtle: linear-gradient(135deg, rgba(247, 198, 0, 0.08) 0%, rgba(244, 63, 94, 0.06) 50%, rgba(168, 85, 247, 0.08) 100%);
            --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
        }

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

        body {
            font-family: var(--font-display);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
            margin: 0;
        }

        * {
            box-sizing: border-box;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, opacity 0.25s ease;
        }

        a:hover {
            opacity: 0.85;
        }

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

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

        button {
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.3s ease, filter 0.3s ease, opacity 0.2s ease;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--c-purple);
            outline-offset: 2px;
            border-radius: 8px;
        }

        button:active {
            transform: translateY(1px);
            filter: brightness(0.92);
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== Header / Dock Navigation ========== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 100;
            padding: 12px 16px;
            pointer-events: none;
        }

        .dock-nav {
            pointer-events: auto;
            max-width: 960px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 8px 12px 8px 20px;
            background: rgba(18, 16, 26, 0.86);
            border: 1px solid var(--border-glow);
            border-radius: 999px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5), 0 0 24px rgba(247, 198, 0, 0.06);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
        }

        .dock-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
            white-space: nowrap;
            color: var(--text-primary);
        }

        .dock-logo .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--gradient-brand);
            flex-shrink: 0;
        }

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

        .dock-menu a {
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .dock-menu a:hover {
            color: var(--text-primary);
            background: rgba(247, 198, 0, 0.08);
        }

        .dock-menu a.active {
            color: var(--c-yellow);
            background: rgba(247, 198, 0, 0.12);
            font-weight: 600;
        }

        .dock-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(11, 10, 15, 0.7);
            border: 1px solid rgba(247, 198, 0, 0.15);
            border-radius: 999px;
            padding: 6px 12px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .dock-search:focus-within {
            border-color: rgba(247, 198, 0, 0.45);
            box-shadow: 0 0 16px rgba(247, 198, 0, 0.15);
        }

        .dock-search input {
            width: 110px;
            font-size: 13px;
            color: var(--text-primary);
            background: transparent;
            transition: width 0.3s ease;
        }

        .dock-search input::placeholder {
            color: var(--text-secondary);
            opacity: 0.8;
        }

        .dock-search input:focus {
            width: 150px;
        }

        .dock-search button {
            color: var(--c-yellow);
            font-size: 14px;
            padding: 4px 6px;
            border-radius: 50%;
            transition: all 0.3s ease;
        }

        .dock-search button:hover {
            background: rgba(247, 198, 0, 0.12);
        }

        .dock-cta {
            padding: 10px 20px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border-radius: 999px;
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(247, 198, 0, 0.25);
            transition: all 0.3s ease;
        }

        .dock-cta:hover {
            box-shadow: 0 6px 28px rgba(247, 198, 0, 0.4);
            filter: brightness(1.05);
        }

        /* ========== Main ========== */
        main {
            padding: 40px 0 80px;
        }

        /* ========== Sections ========== */
        .section {
            padding: 48px 0;
        }

        .section-alt {
            background: var(--bg-secondary);
        }

        .section-label {
            display: inline-block;
            margin-bottom: 12px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--c-yellow-light);
        }

        h1 {
            font-size: clamp(28px, 5vw, 42px);
            font-weight: 700;
            line-height: 1.2;
            margin: 0 0 16px;
            color: var(--text-primary);
        }

        h2 {
            font-size: clamp(22px, 4vw, 32px);
            font-weight: 700;
            line-height: 1.25;
            margin: 0 0 16px;
            color: var(--text-primary);
        }

        h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 8px;
            color: var(--text-primary);
            line-height: 1.3;
        }

        p {
            margin: 0 0 16px;
            color: var(--text-secondary);
        }

        .text-accent {
            color: var(--c-yellow-light);
        }

        .category-hero {
            padding: 60px 0 40px;
        }

        .category-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 20px;
        }

        .stat-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 18px;
            background: rgba(247, 198, 0, 0.08);
            border: 1px solid rgba(247, 198, 0, 0.15);
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .stat-chip i {
            color: var(--c-yellow);
            font-size: 14px;
        }

        /* ========== Filter Toolbar ========== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            padding: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
        }

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

        .filter-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            margin-right: 4px;
        }

        .filter-option {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 14px;
            cursor: pointer;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid rgba(247, 198, 0, 0.15);
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .filter-option:hover {
            border-color: rgba(247, 198, 0, 0.4);
            color: var(--text-primary);
        }

        .filter-option.active {
            background: var(--gradient-brand);
            border-color: transparent;
            color: #fff;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(247, 198, 0, 0.3);
        }

        /* ========== Resource Cards ========== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }

        .resource-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .resource-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5), 0 0 24px rgba(247, 198, 0, 0.18);
            border-color: rgba(247, 198, 0, 0.35);
        }

        .card-cover {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #1e1b26;
        }

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

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

        .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(11, 10, 15, 0.8);
            color: var(--c-yellow-light);
            border: 1px solid rgba(247, 198, 0, 0.3);
        }

        .card-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-title {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.35;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-summary {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: 12px;
        }

        .card-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .tag {
            padding: 4px 10px;
            background: rgba(247, 198, 0, 0.1);
            border-radius: 999px;
            font-size: 12px;
            color: var(--c-yellow-light);
            border: 1px solid rgba(247, 198, 0, 0.15);
        }

        .heat-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            color: var(--c-orange);
            font-weight: 600;
            white-space: nowrap;
        }

        .heat-badge i {
            font-size: 13px;
        }

        /* ========== Trend Bar ========== */
        .trend-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 16px;
        }

        .trend-item {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: border-color 0.3s ease;
        }

        .trend-item:hover {
            border-color: rgba(247, 198, 0, 0.4);
        }

        .trend-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--gradient-subtle);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--c-yellow);
            flex-shrink: 0;
        }

        .trend-info {
            flex: 1;
        }

        .trend-value {
            font-size: 26px;
            font-weight: 700;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .trend-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 2px;
        }

        /* ========== Tag Cloud ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .cloud-tag {
            padding: 10px 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all 0.3s ease;
            cursor: default;
        }

        .cloud-tag:hover {
            border-color: rgba(247, 198, 0, 0.45);
            color: var(--text-primary);
            background: rgba(247, 198, 0, 0.08);
            transform: translateY(-2px);
        }

        /* ========== Related Topics ========== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }

        .topic-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 160px;
            display: flex;
            align-items: flex-end;
            background-size: cover;
            background-position: center;
            border: 1px solid var(--border-glow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            cursor: pointer;
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5), 0 0 24px rgba(247, 198, 0, 0.18);
        }

        .topic-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 0%, rgba(11, 10, 15, 0.85) 100%);
        }

        .topic-content {
            position: relative;
            padding: 20px;
            width: 100%;
        }

        .topic-title {
            font-size: 18px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 4px;
        }

        .topic-desc {
            font-size: 13px;
            color: rgba(245, 243, 232, 0.75);
            margin: 0;
        }

        /* ========== Update Rules ========== */
        .rules-card {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-card);
        }

        .rule-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .rule-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 15px;
            color: var(--text-secondary);
        }

        .rule-list li i {
            color: var(--c-yellow);
            font-size: 16px;
            width: 20px;
        }

        /* ========== Subscribe CTA ========== */
        .subscribe-card {
            padding: 36px 28px;
            background: var(--bg-card);
            border: 1px solid transparent;
            border-image: linear-gradient(135deg, #F7C600 0%, #F43F5E 55%, #A855F7 100%) 1;
            border-radius: var(--radius-lg);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            flex: 1;
            min-width: 260px;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            background: rgba(11, 10, 15, 0.7);
            border: 1px solid rgba(247, 198, 0, 0.2);
            border-radius: 12px;
            color: var(--text-primary);
            font-size: 15px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .subscribe-form input:focus {
            border-color: rgba(247, 198, 0, 0.55);
            box-shadow: 0 0 16px rgba(247, 198, 0, 0.18);
        }

        .subscribe-form button {
            padding: 12px 28px;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            border-radius: 12px;
            box-shadow: 0 4px 16px rgba(247, 198, 0, 0.25);
            transition: all 0.3s ease;
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            box-shadow: 0 6px 28px rgba(247, 198, 0, 0.4);
            filter: brightness(1.05);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #08070d;
            border-top: 1px solid rgba(247, 198, 0, 0.1);
            padding: 60px 0 30px;
        }

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

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 16px;
            max-width: 300px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 18px;
            color: var(--text-primary);
        }

        .footer-logo .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--gradient-brand);
            display: inline-block;
        }

        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 12px;
            transition: color 0.3s ease;
        }

        .footer-col a:hover {
            color: var(--c-yellow);
            opacity: 1;
        }

        .footer-bottom {
            border-top: 1px solid rgba(247, 198, 0, 0.08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .footer-bottom p {
            margin: 0;
            color: var(--text-secondary);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                padding: 8px 10px;
                top: 8px;
            }

            .dock-nav {
                flex-wrap: wrap;
                justify-content: center;
                padding: 10px 14px;
                border-radius: 24px;
            }

            .dock-logo {
                font-size: 15px;
            }

            .dock-menu {
                order: 2;
                width: 100%;
                justify-content: center;
                gap: 2px;
            }

            .dock-menu a {
                padding: 6px 12px;
                font-size: 13px;
            }

            .dock-search {
                order: 3;
                flex: 1;
                min-width: 120px;
            }

            .dock-search input {
                width: 80px;
            }

            .dock-search input:focus {
                width: 120px;
            }

            .dock-cta {
                padding: 8px 16px;
                font-size: 13px;
                order: 4;
            }

            .section {
                padding: 32px 0;
            }

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

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

            .subscribe-card {
                flex-direction: column;
                align-items: stretch;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form button {
                width: 100%;
            }

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

        @media (max-width: 520px) {
            .dock-nav {
                flex-direction: column;
                align-items: stretch;
            }

            .dock-menu {
                flex-wrap: wrap;
            }

            .dock-search {
                order: 2;
            }

            .dock-cta {
                order: 3;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
            --c-yellow: #F7C600;
            --c-yellow-light: #FFD447;
            --c-rose: #F43F5E;
            --c-purple: #A855F7;
            --c-orange: #FB923C;
            --bg-primary: #0B0A0F;
            --bg-secondary: #12101A;
            --bg-card: #17151F;
            --text-primary: #F5F3E8;
            --text-secondary: #A8A29E;
            --border-glow: rgba(247, 198, 0, 0.18);
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.35);
            --gradient-brand: linear-gradient(135deg, #F7C600 0%, #F43F5E 55%, #A855F7 100%);
            --gradient-subtle: linear-gradient(135deg, rgba(247, 198, 0, 0.08) 0%, rgba(244, 63, 94, 0.06) 50%, rgba(168, 85, 247, 0.08) 100%);
            --font-display: 'Inter', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-display);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, opacity 0.25s ease;
        }
        a:hover {
            opacity: 0.85;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            color: inherit;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
            transition: transform 0.2s ease, box-shadow 0.3s ease, filter 0.3s ease, opacity 0.2s ease;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        select:focus-visible {
            outline: 2px solid var(--c-purple);
            outline-offset: 2px;
            border-radius: 8px;
        }
        button:active {
            transform: translateY(1px);
            filter: brightness(0.92);
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        /* ========== Header / Dock Navigation ========== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 100;
            padding: 12px 16px;
            pointer-events: none;
        }
        .dock-nav {
            pointer-events: auto;
            max-width: 960px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 8px 12px 8px 20px;
            background: rgba(18, 16, 26, 0.86);
            border: 1px solid var(--border-glow);
            border-radius: 999px;
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5), 0 0 24px rgba(247, 198, 0, 0.06);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
        }
        .dock-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 16px;
            letter-spacing: 0.5px;
            white-space: nowrap;
            color: var(--text-primary);
        }
        .dock-logo .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--gradient-brand);
            flex-shrink: 0;
        }
        .dock-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }
        .dock-menu a {
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 999px;
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .dock-menu a:hover {
            color: var(--text-primary);
            background: rgba(247, 198, 0, 0.08);
        }
        .dock-menu a.active {
            color: var(--c-yellow);
            background: rgba(247, 198, 0, 0.12);
            font-weight: 600;
        }
        .dock-search {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(11, 10, 15, 0.7);
            border: 1px solid rgba(247, 198, 0, 0.15);
            border-radius: 999px;
            padding: 6px 12px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .dock-search:focus-within {
            border-color: rgba(247, 198, 0, 0.45);
            box-shadow: 0 0 16px rgba(247, 198, 0, 0.15);
        }
        .dock-search input {
            width: 110px;
            font-size: 13px;
            color: var(--text-primary);
            background: transparent;
            transition: width 0.3s ease;
        }
        .dock-search input::placeholder {
            color: var(--text-secondary);
            opacity: 0.8;
        }
        .dock-search input:focus {
            width: 150px;
        }
        .dock-search button {
            color: var(--c-yellow);
            font-size: 14px;
            padding: 4px 6px;
            border-radius: 50%;
            transition: all 0.3s ease;
        }
        .dock-search button:hover {
            background: rgba(247, 198, 0, 0.12);
        }
        .dock-cta {
            padding: 10px 20px;
            background: var(--gradient-brand);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border-radius: 999px;
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(247, 198, 0, 0.25);
            transition: all 0.3s ease;
        }
        .dock-cta:hover {
            box-shadow: 0 6px 28px rgba(247, 198, 0, 0.4);
            filter: brightness(1.05);
        }
        /* ========== Section ========== */
        .section {
            padding: 48px 0;
        }
        .section-alt {
            background-color: var(--bg-secondary);
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }
        /* ========== Cards & Badges ========== */
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }
        .card:hover {
            transform: translateY(-4px);
            border-color: rgba(247, 198, 0, 0.5);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45), 0 0 24px rgba(247, 198, 0, 0.18);
        }
        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(247, 198, 0, 0.12);
            color: var(--c-yellow);
            border: 1px solid rgba(247, 198, 0, 0.25);
            white-space: nowrap;
        }
        .badge-grad {
            background: var(--gradient-brand);
            color: #fff;
            border: none;
            padding: 4px 14px;
        }
        .data-num {
            font-size: 32px;
            font-weight: 700;
            line-height: 1;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .data-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 4px;
        }
        /* ========== Buttons ========== */
        .btn-primary {
            display: inline-block;
            padding: 12px 28px;
            background: var(--gradient-brand);
            color: #fff;
            font-weight: 600;
            border-radius: 999px;
            border: none;
            box-shadow: 0 4px 16px rgba(247, 198, 0, 0.25);
            transition: all 0.3s ease;
            text-align: center;
            cursor: pointer;
        }
        .btn-primary:hover {
            box-shadow: 0 6px 28px rgba(247, 198, 0, 0.4);
            filter: brightness(1.05);
            transform: translateY(-1px);
        }
        .btn-secondary {
            display: inline-block;
            padding: 12px 28px;
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            border-radius: 999px;
            border: 1px solid var(--border-glow);
            transition: all 0.3s ease;
            text-align: center;
            cursor: pointer;
        }
        .btn-secondary:hover {
            background: rgba(247, 198, 0, 0.08);
            border-color: rgba(247, 198, 0, 0.4);
            box-shadow: 0 0 16px rgba(247, 198, 0, 0.15);
        }
        /* ========== Filter Toolbar ========== */
        .filter-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }
        .filter-chip {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(18, 16, 26, 0.8);
            border: 1px solid rgba(247, 198, 0, 0.15);
            color: var(--text-secondary);
            transition: all 0.25s ease;
            cursor: pointer;
        }
        .filter-chip:hover {
            border-color: rgba(247, 198, 0, 0.4);
            color: var(--text-primary);
        }
        .filter-chip.active {
            background: var(--gradient-brand);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 0 16px rgba(247, 198, 0, 0.3);
        }
        /* ========== Resource Card List ========== */
        .resource-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-card);
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }
        .resource-card:hover {
            transform: translateY(-4px);
            border-color: rgba(247, 198, 0, 0.5);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45), 0 0 24px rgba(247, 198, 0, 0.18);
        }
        .resource-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }
        .resource-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .resource-card:hover .resource-card-img img {
            transform: scale(1.05);
        }
        .resource-card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .resource-card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .resource-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }
        .resource-card-footer {
            margin-top: auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }
        .heat-value {
            display: inline-flex;
            align-items: center;
            font-size: 13px;
            font-weight: 600;
            color: var(--c-orange);
        }
        .heat-value i {
            margin-right: 4px;
        }
        /* ========== Tag Cloud ========== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-cloud span {
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(18, 16, 26, 0.8);
            border: 1px solid rgba(247, 198, 0, 0.15);
            color: var(--text-secondary);
            transition: all 0.25s ease;
            cursor: default;
        }
        .tag-cloud span:hover {
            border-color: rgba(247, 198, 0, 0.5);
            color: var(--text-primary);
            background: rgba(247, 198, 0, 0.08);
        }
        /* ========== Subscribe Bar ========== */
        .subscribe-card {
            background: var(--bg-card);
            border: 1px solid transparent;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-card);
            background-image: linear-gradient(var(--bg-card), var(--bg-card)), var(--gradient-brand);
            background-clip: padding-box, border-box;
            background-origin: padding-box, border-box;
        }
        /* ========== Footer ========== */
        .site-footer {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border-glow);
            padding-top: 40px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 30px;
            padding-bottom: 30px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 12px;
            max-width: 280px;
        }
        .footer-logo {
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-primary);
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            transition: color 0.25s ease;
        }
        .footer-col a:hover {
            color: var(--c-yellow);
        }
        .footer-bottom {
            border-top: 1px solid rgba(247, 198, 0, 0.1);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .dock-menu {
                gap: 2px;
            }
            .dock-menu a {
                padding: 8px 12px;
                font-size: 13px;
            }
            .dock-search input {
                width: 90px;
            }
        }
        @media (max-width: 768px) {
            .site-header {
                position: fixed;
                top: auto;
                bottom: 0;
                left: 0;
                right: 0;
                padding: 8px;
                z-index: 100;
                pointer-events: auto;
            }
            .dock-nav {
                max-width: 100%;
                border-radius: 24px;
                padding: 6px 10px;
                flex-wrap: nowrap;
                justify-content: space-around;
            }
            .dock-logo {
                font-size: 13px;
                gap: 4px;
            }
            .dock-menu {
                justify-content: space-around;
                flex: 2;
            }
            .dock-menu a {
                padding: 6px 8px;
                font-size: 11px;
                white-space: nowrap;
            }
            .dock-search {
                display: none;
            }
            .dock-cta {
                padding: 8px 14px;
                font-size: 12px;
            }
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 32px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .resource-card-body {
                padding: 16px;
            }
            .subscribe-card {
                padding: 24px;
            }
        }
        @media (max-width: 480px) {
            .dock-menu a {
                font-size: 10px;
                padding: 4px 6px;
            }
            .dock-logo {
                font-size: 11px;
            }
            .dock-cta {
                font-size: 11px;
                padding: 6px 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .filter-group {
                gap: 6px;
            }
            .filter-chip {
                padding: 4px 12px;
                font-size: 12px;
            }
        }