/* roulang page: index */
:root {
            --bg: #0A0F0E;
            --bg-secondary: #0D1412;
            --surface: #0F1714;
            --card: #111D1A;
            --card-hover: #15231F;
            --primary: #00E5A0;
            --primary-dark: #00C88A;
            --primary-glow: rgba(0, 229, 160, 0.15);
            --accent: #FFB800;
            --accent-glow: rgba(255, 184, 0, 0.12);
            --text: #E8F0ED;
            --text-secondary: #B4C4BF;
            --text-muted: #94A8A2;
            --text-faint: #657A73;
            --border: rgba(255, 255, 255, 0.08);
            --border-primary: rgba(0, 229, 160, 0.25);
            --border-accent: rgba(255, 184, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --sidebar-width: 238px;
            --font-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

        *,
        *::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-base);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        ::selection {
            background: rgba(0, 229, 160, 0.3);
            color: #fff;
        }

        /* ============ Sidebar Navigation ============ */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background-color: var(--bg-secondary);
            border-right: 1px solid var(--border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
            overflow-y: auto;
        }

        .sidebar-brand {
            padding: 20px 20px 16px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .sidebar-brand-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, #00B8F0 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: #000;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .sidebar-brand-name {
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text);
            white-space: nowrap;
        }

        .sidebar-brand-name span {
            color: var(--primary);
        }

        .sidebar-nav {
            padding: 12px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--text-faint);
            padding: 8px 12px 4px;
            font-weight: 600;
        }

        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 11px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-base);
            position: relative;
        }

        .sidebar-link:hover {
            color: var(--text);
            background-color: rgba(255, 255, 255, 0.04);
            transform: translateX(2px);
        }

        .sidebar-link.active {
            color: var(--primary);
            background-color: var(--primary-glow);
            font-weight: 600;
        }

        .sidebar-link.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            border-radius: 0 4px 4px 0;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(0, 229, 160, 0.5);
        }

        .sidebar-link i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .sidebar-footer {
            padding: 14px 16px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-faint);
            flex-shrink: 0;
        }

        /* ============ Main Layout ============ */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .main-content {
            flex: 1;
            max-width: 1180px;
            width: 100%;
            margin: 0 auto;
            padding: 0 28px 40px;
        }

        /* ============ Mobile Header ============ */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background-color: rgba(10, 15, 14, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 10px 16px;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-header-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
        }

        .mobile-header-brand span {
            color: var(--primary);
        }

        .mobile-hamburger {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: all var(--transition-base);
        }

        .mobile-hamburger:hover {
            border-color: var(--primary);
            color: var(--primary);
            background-color: var(--primary-glow);
        }

        .mobile-hamburger i {
            font-size: 18px;
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-slow);
        }

        .sidebar-overlay.show {
            opacity: 1;
        }

        /* ============ Hero ============ */
        .hero-section {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            margin-top: 28px;
            min-height: 540px;
            display: flex;
            align-items: center;
            background-color: var(--card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-lg);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }

        .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.45;
        }

        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 15, 14, 0.94) 0%, rgba(10, 15, 14, 0.78) 35%, rgba(10, 15, 14, 0.55) 65%, rgba(10, 15, 14, 0.82) 100%);
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            padding: 48px 44px;
            display: grid;
            grid-template-columns: 1.2fr 0.9fr;
            gap: 40px;
            align-items: center;
            width: 100%;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 229, 160, 0.12);
            border: 1px solid var(--border-primary);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 100px;
            letter-spacing: 0.03em;
            margin-bottom: 18px;
        }

        .hero-tag i {
            font-size: 12px;
        }

        .hero-title {
            font-size: clamp(30px, 4.5vw, 42px);
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: 0.01em;
            margin-bottom: 16px;
            color: #fff;
        }

        .hero-title .hl-primary {
            color: var(--primary);
        }

        .hero-title .hl-accent {
            color: var(--accent);
        }

        .hero-desc {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 520px;
            margin-bottom: 26px;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #000;
            font-weight: 700;
            font-size: 15px;
            padding: 12px 26px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            border: 1px solid transparent;
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 229, 160, 0.3);
            color: #000;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(0, 229, 160, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 24px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(0, 229, 160, 0.05);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(0);
        }

        .hero-stats-row {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin-top: 22px;
        }

        .hero-stat {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .hero-stat i {
            color: var(--primary);
            font-size: 12px;
        }

        .hero-score-panel {
            background: rgba(15, 23, 20, 0.85);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 22px;
            box-shadow: var(--shadow-md);
        }

        .hero-score-panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 600;
        }

        .hero-score-panel-header .live-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 10px rgba(0, 229, 160, 0.7);
            animation: pulse-dot 1.6s ease-in-out infinite;
            display: inline-block;
        }

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

        .hero-score-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            gap: 8px;
        }

        .hero-score-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .hero-score-item:first-child {
            padding-top: 0;
        }

        .hero-score-team {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
            min-width: 0;
        }

        .hero-score-team .team-tag {
            font-size: 11px;
            padding: 2px 7px;
            border-radius: 4px;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            font-weight: 500;
            flex-shrink: 0;
        }

        .hero-score-value {
            font-size: 18px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.03em;
            flex-shrink: 0;
        }

        .hero-score-item.ended .hero-score-value {
            color: var(--text-muted);
        }

        .hero-score-status {
            font-size: 11px;
            font-weight: 600;
            padding: 3px 9px;
            border-radius: 6px;
            flex-shrink: 0;
        }

        .hero-score-status.live {
            background: rgba(0, 229, 160, 0.15);
            color: var(--primary);
        }
        .hero-score-status.ended {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
        }
        .hero-score-status.upcoming {
            background: rgba(255, 184, 0, 0.15);
            color: var(--accent);
        }

        /* ============ Section Base ============ */
        .section-block {
            margin-top: 60px;
        }

        .section-block:first-of-type {
            margin-top: 28px;
        }

        .section-header {
            margin-bottom: 26px;
        }

        .section-title {
            font-size: clamp(24px, 3vw, 30px);
            font-weight: 700;
            letter-spacing: 0.01em;
            color: #fff;
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-title .hl {
            color: var(--primary);
        }

        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 640px;
        }

        /* ============ Pain Points ============ */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
            gap: 16px;
        }

        .pain-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .pain-card:hover {
            border-color: var(--border-accent);
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            background: var(--card-hover);
        }

        .pain-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent);
            opacity: 0;
            transition: opacity var(--transition-base);
        }

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

        .pain-card-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: rgba(255, 184, 0, 0.1);
            border: 1px solid var(--border-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 17px;
            margin-bottom: 14px;
        }

        .pain-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

        .pain-card-desc {
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ============ Solution ============ */
        .solution-layout {
            display: grid;
            grid-template-columns: 1fr 0.95fr;
            gap: 40px;
            align-items: center;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px;
        }

        .solution-text h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            line-height: 1.35;
        }

        .solution-text p {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

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

        .solution-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--text);
            line-height: 1.55;
        }

        .solution-features li i {
            color: var(--primary);
            margin-top: 4px;
            font-size: 13px;
            flex-shrink: 0;
        }

        .solution-img-wrap {
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            border: 1px solid var(--border);
            min-height: 260px;
        }

        .solution-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 260px;
        }

        .solution-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 15, 14, 0.1) 0%, rgba(10, 15, 14, 0.6) 100%);
            pointer-events: none;
        }

        /* ============ Steps ============ */
        .steps-vertical {
            display: flex;
            flex-direction: column;
            gap: 18px;
            max-width: 760px;
        }

        .step-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: all var(--transition-base);
        }

        .step-item:hover {
            border-color: var(--border-primary);
            background: var(--card-hover);
            transform: translateX(4px);
        }

        .step-number {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--primary-glow);
            border: 1px solid var(--border-primary);
            color: var(--primary);
            font-weight: 700;
            font-size: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .step-info h4 {
            font-size: 15.5px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 5px;
        }

        .step-info p {
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ============ Metrics ============ */
        .metrics-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 16px;
        }

        .metric-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .metric-card:hover {
            border-color: var(--border-primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .metric-value {
            font-size: clamp(28px, 3.5vw, 36px);
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.01em;
            margin-bottom: 6px;
            line-height: 1.2;
        }

        .metric-value .unit {
            font-size: 18px;
            font-weight: 600;
        }

        .metric-label {
            font-size: 13.5px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        .metric-sub {
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 4px;
        }

        /* ============ Testimonials ============ */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 16px;
        }

        .testimonial-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px;
            transition: all var(--transition-base);
        }

        .testimonial-card:hover {
            border-color: var(--border-primary);
            box-shadow: var(--shadow-sm);
        }

        .testimonial-header {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .testimonial-avatar {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary) 0%, #00B8F0 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: #000;
            flex-shrink: 0;
        }

        .testimonial-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }

        .testimonial-role {
            font-size: 12px;
            color: var(--text-muted);
        }

        .testimonial-text {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

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

        .audience-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 22px;
            text-align: left;
            transition: all var(--transition-base);
        }

        .audience-card:hover {
            border-color: var(--border-accent);
            background: var(--card-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .audience-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: rgba(0, 229, 160, 0.1);
            border: 1px solid var(--border-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 17px;
            margin-bottom: 12px;
        }

        .audience-card h4 {
            font-size: 15.5px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

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

        /* ============ News ============ */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .news-card {
            display: flex;
            gap: 18px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            transition: all var(--transition-base);
            align-items: flex-start;
        }

        .news-card:hover {
            border-color: var(--border-primary);
            background: var(--card-hover);
            box-shadow: var(--shadow-sm);
            transform: translateX(3px);
        }

        .news-card-img {
            width: 120px;
            height: 76px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            border: 1px solid var(--border);
        }

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

        .news-card-body {
            flex: 1;
            min-width: 0;
        }

        .news-card-date {
            font-size: 12px;
            color: var(--text-faint);
            font-weight: 500;
            margin-bottom: 4px;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .news-card-title {
            font-size: 15.5px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-card-summary {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-btn {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-base);
        }

        .news-card-btn:hover {
            color: var(--primary-dark);
            gap: 7px;
        }

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

        .rank-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            transition: all var(--transition-base);
        }

        .rank-item:hover {
            border-color: var(--border-accent);
            background: var(--card-hover);
        }

        .rank-number {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-faint);
            width: 36px;
            text-align: center;
            flex-shrink: 0;
        }

        .rank-item:first-child .rank-number {
            color: var(--accent);
        }
        .rank-item:nth-child(2) .rank-number {
            color: #C0C0C0;
        }
        .rank-item:nth-child(3) .rank-number {
            color: #CD7F32;
        }

        .rank-team {
            flex: 1;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            min-width: 0;
        }

        .rank-score {
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
        }

        .rank-change {
            font-size: 12px;
            font-weight: 600;
            padding: 3px 9px;
            border-radius: 6px;
            flex-shrink: 0;
        }

        .rank-change.up {
            background: rgba(0, 229, 160, 0.12);
            color: var(--primary);
        }
        .rank-change.down {
            background: rgba(255, 100, 100, 0.12);
            color: #FF6B6B;
        }
        .rank-change.same {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
        }

        /* ============ Brand Intro ============ */
        .brand-intro-section {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            position: relative;
            overflow: hidden;
        }

        .brand-intro-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(0, 229, 160, 0.08);
            pointer-events: none;
        }

        .brand-intro-section h3 {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .brand-intro-section p {
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
            max-width: 900px;
        }

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

        /* ============ Match Calendar ============ */
        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
            gap: 14px;
        }

        .calendar-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            transition: all var(--transition-base);
            text-align: center;
        }

        .calendar-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }

        .calendar-tournament {
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 6px;
        }

        .calendar-match {
            font-size: 14.5px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .calendar-time {
            font-size: 12.5px;
            color: var(--text-muted);
        }

        /* ============ Tools Entry ============ */
        .tools-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 14px;
        }

        .tool-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: center;
            transition: all var(--transition-base);
        }

        .tool-card:hover {
            border-color: var(--border-primary);
            background: var(--card-hover);
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .tool-icon {
            width: 44px;
            height: 44px;
            margin: 0 auto 12px;
            border-radius: var(--radius-sm);
            background: var(--primary-glow);
            border: 1px solid var(--border-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
        }

        .tool-card h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 5px;
        }

        .tool-card p {
            font-size: 12.5px;
            color: var(--text-muted);
            line-height: 1.55;
        }

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

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            width: 100%;
            text-align: left;
            transition: all var(--transition-base);
        }

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

        .faq-question i {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 20px;
    }

        .faq-item.open .faq-answer {
            max-height: 240px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ============ Guarantee ============ */
        .guarantee-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 14px;
        }

        .guarantee-item {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            font-size: 13.5px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: all var(--transition-base);
        }

        .guarantee-item:hover {
            border-color: var(--border-primary);
        }

        .guarantee-item i {
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
        }

        /* ============ CTA ============ */
        .cta-section {
            background: linear-gradient(135deg, rgba(0, 229, 160, 0.1) 0%, rgba(0, 229, 160, 0.03) 60%, rgba(255, 184, 0, 0.05) 100%);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            text-align: center;
        }

        .cta-section h3 {
            font-size: 24px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .cta-section p {
            font-size: 14.5px;
            color: var(--text-secondary);
            margin-bottom: 20px;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-form {
            display: flex;
            gap: 10px;
            max-width: 420px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-input {
            flex: 1;
            min-width: 200px;
            padding: 11px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.04);
            color: var(--text);
            font-size: 14px;
            transition: all var(--transition-base);
        }

        .cta-input:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.15);
        }

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

        .cta-privacy {
            font-size: 12px;
            color: var(--text-faint);
            margin-top: 12px;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border);
            padding: 28px 28px 20px;
            margin-top: 60px;
        }

        .footer-inner {
            max-width: 1180px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: flex-start;
            justify-content: space-between;
        }

        .footer-brand {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .footer-brand span {
            color: var(--primary);
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 13.5px;
            color: var(--text-muted);
            align-items: center;
        }

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

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

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

        .footer-copyright {
            font-size: 12.5px;
            color: var(--text-faint);
            margin-top: 14px;
            width: 100%;
            text-align: left;
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .hero-inner {
                padding: 36px 30px;
                gap: 28px;
            }
            .main-content {
                padding: 0 20px 32px;
            }
            .solution-layout {
                gap: 24px;
                padding: 28px;
            }
            .news-card-img {
                width: 100px;
                height: 66px;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }

            .sidebar.open {
                transform: translateX(0);
                box-shadow: var(--shadow-lg);
            }

            .sidebar-overlay {
                display: block;
                pointer-events: none;
            }

            .sidebar-overlay.show {
                pointer-events: auto;
            }

            .mobile-header {
                display: flex;
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: 58px;
            }

            .main-content {
                padding: 0 14px 24px;
            }

            .hero-section {
                min-height: auto;
                border-radius: var(--radius-lg);
                margin-top: 16px;
            }

            .hero-inner {
                grid-template-columns: 1fr;
                padding: 28px 20px;
                gap: 24px;
            }

            .hero-title {
                font-size: 26px;
            }

            .hero-desc {
                font-size: 14.5px;
            }

            .hero-score-panel {
                padding: 16px;
            }

            .solution-layout {
                grid-template-columns: 1fr;
                padding: 22px;
            }

            .solution-img-wrap {
                min-height: 180px;
                order: -1;
            }

            .solution-img-wrap img {
                min-height: 180px;
            }

            .news-card {
                flex-direction: column;
                gap: 12px;
                padding: 14px;
            }

            .news-card-img {
                width: 100%;
                height: 140px;
            }

            .news-card-summary {
                -webkit-line-clamp: 3;
            }

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

            .cta-section {
                padding: 24px 18px;
            }

            .section-block {
                margin-top: 40px;
            }

            .site-footer {
                padding: 20px 16px 16px;
                margin-top: 40px;
            }

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

            .footer-links {
                gap: 12px;
                font-size: 12.5px;
            }

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

        @media (max-width: 520px) {
            .hero-inner {
                padding: 20px 14px;
                gap: 18px;
            }
            .hero-title {
                font-size: 22px;
            }
            .hero-desc {
                font-size: 13.5px;
            }
            .hero-actions {
                gap: 10px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 10px 18px;
                font-size: 14px;
            }
            .hero-stats-row {
                gap: 10px;
            }
            .hero-stat {
                font-size: 12px;
            }
            .pain-grid,
            .audience-grid,
            .testimonial-grid,
            .tools-grid,
            .calendar-grid,
            .guarantee-row {
                grid-template-columns: 1fr;
            }
            .metrics-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .metric-card {
                padding: 16px 12px;
            }
            .rank-item {
                padding: 10px 12px;
                gap: 8px;
                flex-wrap: wrap;
            }
            .rank-number {
                width: 26px;
                font-size: 16px;
            }
            .rank-team {
                font-size: 13.5px;
            }
            .rank-score {
                font-size: 13.5px;
            }
            .section-title {
                font-size: 21px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-input {
                width: 100%;
            }
            .calendar-grid {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: category2 */
:root {
            --bg: #0A0F0E;
            --bg-secondary: #0D1412;
            --surface: #0F1714;
            --card: #111D1A;
            --card-hover: #15231F;
            --primary: #00E5A0;
            --primary-dark: #00C88A;
            --primary-glow: rgba(0, 229, 160, 0.15);
            --accent: #FFB800;
            --accent-glow: rgba(255, 184, 0, 0.12);
            --text: #E8F0ED;
            --text-secondary: #B4C4BF;
            --text-muted: #94A8A2;
            --text-faint: #657A73;
            --border: rgba(255, 255, 255, 0.08);
            --border-primary: rgba(0, 229, 160, 0.25);
            --border-accent: rgba(255, 184, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --sidebar-width: 238px;
            --font-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

        body {
            font-family: var(--font-base);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        /* Sidebar Navigation */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background-color: var(--bg-secondary);
            border-right: 1px solid var(--border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
            overflow-y: auto;
        }

        .sidebar-brand {
            padding: 20px 20px 16px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .sidebar-brand-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, #00B8F0 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: #000;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .sidebar-brand-name {
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text);
            white-space: nowrap;
        }

        .sidebar-brand-name span {
            color: var(--primary);
        }

        .sidebar-nav {
            padding: 12px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--text-faint);
            padding: 8px 12px 4px;
            font-weight: 600;
        }

        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: background var(--transition-base), color var(--transition-base);
        }

        .sidebar-link i {
            width: 18px;
            text-align: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .sidebar-link:hover {
            background: var(--primary-glow);
            color: var(--primary);
        }

        .sidebar-link.active {
            background: var(--primary-glow);
            color: var(--primary);
            font-weight: 600;
            position: relative;
        }

        .sidebar-link.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 22px;
            background: var(--primary);
            border-radius: 0 3px 3px 0;
        }

        .sidebar-footer {
            padding: 14px 16px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-faint);
            flex-shrink: 0;
        }

        /* Main Layout */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .main-content {
            flex: 1;
            max-width: 1180px;
            width: 100%;
            margin: 0 auto;
            padding: 0 28px 40px;
        }

        /* Mobile Header */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background-color: rgba(10, 15, 14, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 10px 16px;
            align-items: center;
            justify-content: space-between;
        }

        .mobile-header-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
        }

        .mobile-header-brand span {
            color: var(--primary);
        }

        .mobile-hamburger {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: background var(--transition-base);
        }
        .mobile-hamburger:hover {
            background: var(--primary-glow);
            color: var(--primary);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-faint);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: var(--text-faint);
            font-size: 11px;
        }
        .breadcrumb-current {
            color: var(--text-secondary);
        }

        /* Section Base */
        .section-block {
            padding: 28px 0;
            border-bottom: 1px solid var(--border);
        }
        .section-block:last-child {
            border-bottom: none;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.01em;
            margin-bottom: 6px;
            line-height: 1.35;
        }
        .section-desc {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 18px;
            line-height: 1.7;
            max-width: 760px;
        }

        /* Filter Tags */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 4px;
        }
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 999px;
            border: 1px solid var(--border);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--surface);
            transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
        }
        .filter-tag:hover {
            border-color: var(--border-primary);
            color: var(--primary);
            background: var(--primary-glow);
        }
        .filter-tag.active {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-glow);
            font-weight: 600;
        }

        /* Data Card */
        .data-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 18px 20px;
            transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .data-card:hover {
            border-color: var(--border-primary);
            box-shadow: var(--shadow-md);
            background: var(--card-hover);
        }
        .data-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .data-card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
        }
        .data-card-badge {
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 999px;
            font-weight: 600;
            letter-spacing: 0.03em;
            flex-shrink: 0;
        }
        .badge-up {
            background: rgba(0, 229, 160, 0.12);
            color: var(--primary);
        }
        .badge-down {
            background: rgba(255, 100, 100, 0.12);
            color: #FF6B6B;
        }
        .badge-neutral {
            background: rgba(255, 184, 0, 0.12);
            color: var(--accent);
        }
        .data-metrics {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
            gap: 10px;
        }
        .data-metric {
            background: var(--surface);
            border-radius: var(--radius-sm);
            padding: 8px 10px;
            text-align: center;
        }
        .data-metric-value {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
        }
        .data-metric-label {
            font-size: 11px;
            color: var(--text-faint);
            letter-spacing: 0.04em;
        }
        .data-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-faint);
        }

        /* Ranking List */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .ranking-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: border-color var(--transition-base), background var(--transition-base);
        }
        .ranking-item:hover {
            border-color: var(--border-primary);
            background: var(--card-hover);
        }
        .ranking-pos {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
            background: var(--surface);
            color: var(--text-muted);
        }
        .ranking-pos.top1 {
            background: var(--primary-glow);
            color: var(--primary);
        }
        .ranking-pos.top2 {
            background: rgba(255, 184, 0, 0.12);
            color: var(--accent);
        }
        .ranking-pos.top3 {
            background: rgba(255, 150, 80, 0.12);
            color: #FF9650;
        }
        .ranking-info {
            flex: 1;
            min-width: 0;
        }
        .ranking-name {
            font-weight: 600;
            font-size: 14px;
            color: var(--text);
        }
        .ranking-sub {
            font-size: 12px;
            color: var(--text-faint);
        }
        .ranking-value {
            font-weight: 700;
            font-size: 15px;
            color: var(--text);
            flex-shrink: 0;
        }
        .ranking-change {
            font-size: 11px;
            font-weight: 600;
            padding: 3px 8px;
            border-radius: 999px;
            flex-shrink: 0;
        }

        /* Info Card with Image */
        .info-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .info-card:hover {
            border-color: var(--border-primary);
            box-shadow: var(--shadow-md);
        }
        .info-card-img {
            aspect-ratio: 16/8;
            overflow: hidden;
            position: relative;
            background: var(--surface);
            flex-shrink: 0;
        }
        .info-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .info-card:hover .info-card-img img {
            transform: scale(1.03);
        }
        .info-card-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            gap: 8px;
            flex: 1;
        }
        .info-card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
        }
        .info-card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            flex: 1;
        }
        .info-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-faint);
        }

        /* CTA */
        .cta-box {
            background: linear-gradient(135deg, rgba(0, 229, 160, 0.06), rgba(0, 184, 240, 0.04));
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-xl);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .cta-box-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .cta-box-desc {
            font-size: 13px;
            color: var(--text-secondary);
            max-width: 520px;
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #000;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #000;
            box-shadow: 0 0 18px var(--primary-glow);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--border-primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-glow);
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-sm {
            padding: 7px 16px;
            font-size: 13px;
            border-radius: 6px;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border);
            padding: 18px 28px;
            margin-top: 20px;
        }
        .footer-inner {
            max-width: 1180px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-brand {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
        }
        .footer-brand span {
            color: var(--primary);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-divider {
            color: var(--text-faint);
        }
        .footer-copyright {
            font-size: 12px;
            color: var(--text-faint);
        }

        /* Mobile Overlay */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .sidebar-overlay.visible {
            display: block;
            opacity: 1;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .main-content {
                padding: 0 20px 32px;
            }
            .site-footer {
                padding: 16px 20px;
            }
            .footer-inner {
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: var(--shadow-lg);
            }
            .sidebar-overlay.visible {
                display: block;
                opacity: 1;
            }
            .main-wrapper {
                margin-left: 0;
            }
            .main-content {
                padding: 0 16px 24px;
                margin-top: 60px;
            }
            .mobile-header {
                display: flex;
            }
            .sidebar-brand {
                padding: 16px 16px 12px;
            }
            .sidebar-nav {
                padding: 10px 10px;
            }
            .sidebar-link {
                padding: 9px 12px;
                font-size: 13px;
            }
            .sidebar-link.active::before {
                display: none;
            }
            .site-footer {
                padding: 14px 16px;
            }
            .footer-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .filter-tag {
                padding: 6px 12px;
                font-size: 12px;
            }
            .section-title {
                font-size: 19px;
            }
            .cta-box {
                padding: 20px 18px;
                flex-direction: column;
                align-items: flex-start;
            }
            .ranking-item {
                gap: 10px;
                padding: 10px 12px;
                flex-wrap: wrap;
            }
            .data-metrics {
                grid-template-columns: repeat(3, 1fr);
                gap: 6px;
            }
            .data-metric-value {
                font-size: 16px;
            }
        }

        @media (max-width: 520px) {
            .main-content {
                padding: 0 12px 20px;
                margin-top: 56px;
            }
            .section-block {
                padding: 20px 0;
            }
            .data-card {
                padding: 14px 15px;
            }
            .data-metrics {
                grid-template-columns: repeat(2, 1fr);
            }
            .breadcrumb {
                font-size: 12px;
                gap: 4px;
            }
            .filter-tags {
                gap: 5px;
            }
            .filter-tag {
                padding: 5px 10px;
                font-size: 11px;
            }
            .cta-box-title {
                font-size: 16px;
            }
            .btn {
                padding: 8px 16px;
                font-size: 13px;
            }
            .footer-links {
                font-size: 12px;
                gap: 6px;
            }
        }

/* roulang page: category3 */
:root {
            --bg: #0A0F0E;
            --bg-secondary: #0D1412;
            --surface: #0F1714;
            --card: #111D1A;
            --card-hover: #15231F;
            --primary: #00E5A0;
            --primary-dark: #00C88A;
            --primary-glow: rgba(0, 229, 160, 0.15);
            --accent: #FFB800;
            --accent-glow: rgba(255, 184, 0, 0.12);
            --text: #E8F0ED;
            --text-secondary: #B4C4BF;
            --text-muted: #94A8A2;
            --text-faint: #657A73;
            --border: rgba(255, 255, 255, 0.08);
            --border-primary: rgba(0, 229, 160, 0.25);
            --border-accent: rgba(255, 184, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --sidebar-width: 238px;
            --font-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

        body {
            font-family: var(--font-base);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        /* ============ Sidebar Navigation ============ */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background-color: var(--bg-secondary);
            border-right: 1px solid var(--border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
            overflow-y: auto;
        }
        .sidebar-brand {
            padding: 20px 20px 16px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .sidebar-brand-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, #00B8F0 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: #000;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .sidebar-brand-name {
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text);
            white-space: nowrap;
        }
        .sidebar-brand-name span {
            color: var(--primary);
        }
        .sidebar-nav {
            padding: 12px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--text-faint);
            padding: 8px 12px 4px;
            font-weight: 600;
        }
        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: background-color var(--transition-fast), color var(--transition-fast);
            white-space: nowrap;
        }
        .sidebar-link i {
            width: 18px;
            text-align: center;
            font-size: 14px;
            flex-shrink: 0;
        }
        .sidebar-link:hover {
            background-color: var(--primary-glow);
            color: var(--primary);
        }
        .sidebar-link.active {
            background-color: var(--primary-glow);
            color: var(--primary);
            font-weight: 600;
            border-left: 3px solid var(--primary);
        }
        .sidebar-footer {
            padding: 14px 16px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-faint);
            flex-shrink: 0;
        }

        /* ============ Main Layout ============ */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content {
            flex: 1;
            max-width: 1180px;
            width: 100%;
            margin: 0 auto;
            padding: 0 28px 40px;
        }

        /* ============ Mobile Header ============ */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background-color: rgba(10, 15, 14, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 10px 16px;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-header-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
        }
        .mobile-header-brand span {
            color: var(--primary);
        }
        .mobile-hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            color: var(--text-secondary);
            font-size: 18px;
            transition: background-color var(--transition-fast);
            background: none;
            cursor: pointer;
        }
        .mobile-hamburger:hover {
            background-color: var(--primary-glow);
            color: var(--primary);
        }
        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.6);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .mobile-overlay.show {
            display: block;
            opacity: 1;
        }

        /* ============ Breadcrumb ============ */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 16px 0 4px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--text-faint);
            font-size: 11px;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        /* ============ Category Hero (lightweight) ============ */
        .category-hero {
            padding: 20px 0 28px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 32px;
        }
        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.25;
        }
        .category-hero .cat-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.7;
        }
        .category-hero .cat-stats {
            display: flex;
            gap: 20px;
            margin-top: 14px;
            flex-wrap: wrap;
        }
        .category-hero .cat-stat-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .category-hero .cat-stat-item i {
            color: var(--primary);
            font-size: 12px;
        }

        /* ============ Section Base ============ */
        .section-block {
            margin-bottom: 40px;
        }
        .section-heading {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .section-heading h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.01em;
        }
        .section-heading h2 .heading-icon {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            background-color: var(--primary-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 15px;
            flex-shrink: 0;
        }
        .section-heading .view-all {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-fast);
        }
        .section-heading .view-all:hover {
            color: var(--primary);
        }

        /* ============ Filter Tags ============ */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
            margin-bottom: 24px;
        }
        .filter-tag {
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
            background: none;
        }
        .filter-tag:hover {
            border-color: var(--border-primary);
            color: var(--primary);
            background-color: var(--primary-glow);
        }
        .filter-tag.active {
            background-color: var(--primary);
            color: #000;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* ============ Featured Article ============ */
        .featured-article {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            background-color: var(--card);
            border: 1px solid var(--border);
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            box-shadow: var(--shadow-md);
        }
        .featured-article .featured-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
        }
        .featured-article .featured-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 15, 14, 0.1) 0%, rgba(10, 15, 14, 0.55) 40%, rgba(10, 15, 14, 0.92) 100%);
            z-index: 1;
        }
        .featured-article .featured-content {
            position: relative;
            z-index: 2;
            padding: 32px;
            max-width: 680px;
        }
        .featured-article .featured-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background-color: rgba(0, 229, 160, 0.15);
            border: 1px solid var(--border-primary);
            border-radius: 20px;
            padding: 4px 12px;
            margin-bottom: 12px;
        }
        .featured-article .featured-date {
            font-size: 13px;
            color: var(--text-muted);
            display: block;
            margin-bottom: 8px;
        }
        .featured-article h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.35;
            letter-spacing: -0.01em;
        }
        .featured-article .featured-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            background-color: var(--primary);
            color: #000;
            transition: all var(--transition-fast);
            border: 1px solid var(--primary);
            cursor: pointer;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            border-color: var(--primary-dark);
            box-shadow: 0 4px 16px rgba(0, 229, 160, 0.35);
            transform: translateY(-1px);
            color: #000;
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .btn-outline:hover {
            border-color: var(--border-primary);
            color: var(--primary);
            background-color: var(--primary-glow);
        }
        .btn-sm {
            padding: 7px 16px;
            font-size: 13px;
            border-radius: 6px;
        }

        /* ============ News Cards ============ */
        .news-card {
            display: flex;
            gap: 18px;
            padding: 16px;
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .news-card:hover {
            background-color: var(--card-hover);
            border-color: var(--border-primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .news-card .news-thumb {
            width: 140px;
            min-width: 140px;
            height: 92px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background-color: var(--surface);
        }
        .news-card .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .news-card:hover .news-thumb img {
            transform: scale(1.05);
        }
        .news-card .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 4px;
            flex-wrap: wrap;
        }
        .news-card .news-meta .tag-badge {
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
            background-color: var(--primary-glow);
            color: var(--primary);
        }
        .news-card .news-meta .tag-badge.accent {
            background-color: var(--accent-glow);
            color: var(--accent);
        }
        .news-card h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
            letter-spacing: -0.01em;
        }
        .news-card:hover h4 {
            color: var(--primary);
        }
        .news-card .news-excerpt {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .news-card .read-more {
            font-size: 12px;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-card .read-more i {
            font-size: 10px;
            transition: transform var(--transition-fast);
        }
        .news-card:hover .read-more i {
            transform: translateX(3px);
        }

        /* ============ Hot Ranking ============ */
        .hot-rank-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .hot-rank-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: all var(--transition-fast);
        }
        .hot-rank-item:hover {
            background-color: var(--card-hover);
            border-color: var(--border-primary);
        }
        .hot-rank-item .rank-number {
            width: 32px;
            height: 32px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            color: var(--text-secondary);
            background-color: var(--surface);
            flex-shrink: 0;
        }
        .hot-rank-item .rank-number.top1 {
            background-color: var(--accent-glow);
            color: var(--accent);
        }
        .hot-rank-item .rank-number.top2 {
            background-color: rgba(192, 192, 192, 0.1);
            color: #C0C0C0;
        }
        .hot-rank-item .rank-number.top3 {
            background-color: rgba(205, 127, 50, 0.15);
            color: #CD7F32;
        }
        .hot-rank-item .rank-info {
            flex: 1;
            min-width: 0;
        }
        .hot-rank-item .rank-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .hot-rank-item .rank-tag {
            font-size: 11px;
            padding: 2px 8px;
            border-radius: 4px;
            background-color: var(--accent-glow);
            color: var(--accent);
            font-weight: 500;
            flex-shrink: 0;
        }

        /* ============ Data Snapshot ============ */
        .data-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .data-snapshot-card {
            padding: 20px 16px;
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            text-align: center;
            transition: all var(--transition-fast);
        }
        .data-snapshot-card:hover {
            border-color: var(--border-primary);
            box-shadow: var(--shadow-sm);
        }
        .data-snapshot-card .snapshot-value {
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            margin-bottom: 4px;
            line-height: 1;
        }
        .data-snapshot-card .snapshot-value.accent {
            color: var(--accent);
        }
        .data-snapshot-card .snapshot-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ============ Topic Cards ============ */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .topic-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background-color: var(--card);
            border: 1px solid var(--border);
            min-height: 180px;
            display: flex;
            align-items: flex-end;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .topic-card:hover {
            border-color: var(--border-primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .topic-card .topic-bg {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
        }
        .topic-card .topic-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 15, 14, 0.1) 0%, rgba(10, 15, 14, 0.8) 100%);
            z-index: 1;
        }
        .topic-card .topic-content {
            position: relative;
            z-index: 2;
            padding: 18px;
        }
        .topic-card .topic-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
        }
        .topic-card .topic-count {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ============ Subscribe CTA ============ */
        .subscribe-cta {
            padding: 32px 28px;
            background-color: var(--card);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            background-image: linear-gradient(135deg, rgba(0, 229, 160, 0.06) 0%, transparent 60%);
        }
        .subscribe-cta .cta-text h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            letter-spacing: -0.01em;
        }
        .subscribe-cta .cta-text p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .subscribe-cta .cta-form {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }
        .subscribe-cta .cta-form input {
            min-width: 240px;
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background-color: var(--bg-secondary);
            color: var(--text);
            font-size: 14px;
            transition: border-color var(--transition-fast);
        }
        .subscribe-cta .cta-form input::placeholder {
            color: var(--text-faint);
        }
        .subscribe-cta .cta-form input:focus {
            outline: none;
            border-color: var(--primary);
        }

        /* ============ Footer ============ */
        .site-footer {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border);
            padding: 24px 28px 20px;
            margin-top: auto;
        }
        .footer-inner {
            max-width: 1180px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-brand {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
        }
        .footer-brand span {
            color: var(--primary);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 13px;
        }
        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-divider {
            color: var(--text-faint);
            font-size: 11px;
        }
        .footer-copyright {
            font-size: 12px;
            color: var(--text-faint);
        }

        /* ============ Responsive ============ */
        @media (max-width: 1280px) {
            .data-snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: var(--shadow-lg);
            }
            .mobile-header {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 60px;
            }
            .main-content {
                padding: 0 20px 32px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .main-content {
                padding: 0 16px 28px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .news-card {
                flex-direction: column;
                gap: 12px;
            }
            .news-card .news-thumb {
                width: 100%;
                min-width: auto;
                height: 180px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .subscribe-cta {
                flex-direction: column;
                align-items: stretch;
            }
            .subscribe-cta .cta-form {
                flex-direction: column;
            }
            .subscribe-cta .cta-form input {
                min-width: auto;
            }
            .featured-article {
                min-height: 280px;
            }
            .featured-article .featured-content {
                padding: 20px;
            }
            .featured-article h3 {
                font-size: 19px;
            }
            .data-snapshot-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .footer-inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .main-content {
                padding: 0 12px 24px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .data-snapshot-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .data-snapshot-card .snapshot-value {
                font-size: 24px;
            }
            .filter-tags {
                gap: 6px;
            }
            .filter-tag {
                padding: 5px 12px;
                font-size: 12px;
            }
            .site-footer {
                padding: 20px 16px 16px;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0A0F0E;
            --bg-secondary: #0D1412;
            --surface: #0F1714;
            --card: #111D1A;
            --card-hover: #15231F;
            --primary: #00E5A0;
            --primary-dark: #00C88A;
            --primary-glow: rgba(0, 229, 160, 0.15);
            --accent: #FFB800;
            --accent-glow: rgba(255, 184, 0, 0.12);
            --text: #E8F0ED;
            --text-secondary: #B4C4BF;
            --text-muted: #94A8A2;
            --text-faint: #657A73;
            --border: rgba(255, 255, 255, 0.08);
            --border-primary: rgba(0, 229, 160, 0.25);
            --border-accent: rgba(255, 184, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --sidebar-width: 238px;
            --font-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

        body {
            font-family: var(--font-base);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background-color: var(--bg-secondary);
            border-right: 1px solid var(--border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
            overflow-y: auto;
        }

        .sidebar-brand {
            padding: 20px 20px 16px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .sidebar-brand-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, #00B8F0 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: #000;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .sidebar-brand-name {
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text);
            white-space: nowrap;
        }
        .sidebar-brand-name span {
            color: var(--primary);
        }

        .sidebar-nav {
            padding: 12px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--text-faint);
            padding: 8px 12px 4px;
            font-weight: 600;
        }
        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }
        .sidebar-link i {
            width: 18px;
            text-align: center;
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .sidebar-link:hover {
            background-color: var(--primary-glow);
            color: var(--text);
            border-color: var(--border-primary);
        }
        .sidebar-link:hover i {
            color: var(--primary);
        }
        .sidebar-link.active {
            background-color: var(--primary-glow);
            color: var(--text);
            border-color: var(--border-primary);
            font-weight: 600;
        }
        .sidebar-link.active i {
            color: var(--primary);
        }

        .sidebar-footer {
            padding: 14px 16px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-faint);
            flex-shrink: 0;
        }
        .sidebar-footer .live-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background-color: var(--primary);
            margin-right: 6px;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0, 229, 160, 0.4); }
            50% { opacity: 0.7; box-shadow: 0 0 0 4px rgba(0, 229, 160, 0); }
        }

        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content {
            flex: 1;
            max-width: 1180px;
            width: 100%;
            margin: 0 auto;
            padding: 0 28px 40px;
        }

        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background-color: rgba(10, 15, 14, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 10px 16px;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-header-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
        }
        .mobile-header-brand span {
            color: var(--primary);
        }
        .mobile-hamburger {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background-color: var(--surface);
            color: var(--text);
            font-size: 18px;
            transition: all var(--transition-base);
        }
        .mobile-hamburger:hover {
            border-color: var(--border-primary);
            color: var(--primary);
        }

        .sidebar-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0, 0, 0, 0.6);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-slow);
        }
        .sidebar-overlay.show {
            opacity: 1;
        }

        .site-footer {
            background-color: var(--bg-secondary);
            border-top: 1px solid var(--border);
            padding: 22px 28px;
            margin-top: 40px;
        }
        .footer-inner {
            max-width: 1180px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .footer-brand {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
        }
        .footer-brand span {
            color: var(--primary);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-divider {
            color: var(--text-faint);
        }
        .footer-copyright {
            font-size: 12px;
            color: var(--text-faint);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 18px 0 6px;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--text-faint);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }

        .category-hero {
            padding: 18px 0 20px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 24px;
        }
        .category-hero h1 {
            font-size: 28px;
            font-weight: 700;
            letter-spacing: 0.01em;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .category-hero p {
            font-size: 14px;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.7;
        }

        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            padding: 16px 0;
            margin-bottom: 16px;
        }
        .filter-tag {
            padding: 7px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background-color: var(--surface);
            border: 1px solid var(--border);
            transition: all var(--transition-base);
            cursor: pointer;
            white-space: nowrap;
        }
        .filter-tag:hover {
            border-color: var(--border-primary);
            color: var(--text);
            background-color: var(--primary-glow);
        }
        .filter-tag.active {
            background-color: var(--primary-glow);
            border-color: var(--border-primary);
            color: var(--primary);
            font-weight: 600;
        }

        .match-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 16px;
            margin-bottom: 28px;
        }
        .match-card {
            background-color: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .match-card:hover {
            background-color: var(--card-hover);
            border-color: var(--border-primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .match-card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background-color: var(--bg-secondary);
        }
        .match-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.75;
            transition: opacity var(--transition-base);
        }
        .match-card:hover .match-card-image img {
            opacity: 0.95;
        }
        .match-card-image .shade {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 15, 14, 0.9) 0%, rgba(10, 15, 14, 0.2) 70%, rgba(10, 15, 14, 0.4) 100%);
        }
        .match-status-badge {
            position: absolute;
            top: 10px;
            right: 10px;
            padding: 4px 10px;
            border-radius: 999px;
            font-size: 11px;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .badge-live {
            background-color: rgba(0, 229, 160, 0.15);
            color: var(--primary);
            border: 1px solid rgba(0, 229, 160, 0.35);
        }
        .badge-upcoming {
            background-color: rgba(255, 184, 0, 0.12);
            color: var(--accent);
            border: 1px solid rgba(255, 184, 0, 0.3);
        }
        .badge-ended {
            background-color: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
            border: 1px solid var(--border);
        }
        .match-card-body {
            padding: 16px 16px 14px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .match-card-event {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .match-card-event i {
            color: var(--text-faint);
            font-size: 11px;
        }
        .match-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-bottom: 10px;
        }
        .match-team {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.01em;
        }
        .match-vs {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            flex-shrink: 0;
        }
        .match-score-row {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 8px 0;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            margin-bottom: 10px;
        }
        .match-score {
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.02em;
        }
        .match-score-live {
            color: var(--primary);
        }
        .match-map-info {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .match-map-info i {
            color: var(--text-faint);
            font-size: 11px;
        }
        .match-time {
            font-size: 12px;
            color: var(--text-faint);
        }
        .match-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: 10px;
            border-top: 1px solid var(--border);
        }
        .match-detail-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all var(--transition-base);
        }
        .match-detail-link:hover {
            color: var(--primary-dark);
            gap: 7px;
        }
        .match-detail-link i {
            font-size: 11px;
        }

        .hot-section {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px;
            margin-bottom: 28px;
        }
        .hot-section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 16px;
        }
        .hot-section-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hot-section-title i {
            color: var(--accent);
            font-size: 16px;
        }
        .hot-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 14px;
            border-radius: var(--radius-md);
            background-color: var(--card);
            border: 1px solid var(--border);
            transition: all var(--transition-base);
        }
        .hot-item:hover {
            border-color: var(--border-primary);
            background-color: var(--card-hover);
        }
        .hot-rank {
            font-size: 18px;
            font-weight: 800;
            color: var(--text-faint);
            width: 28px;
            text-align: center;
            flex-shrink: 0;
        }
        .hot-rank.top1 { color: var(--accent); }
        .hot-rank.top2 { color: #C0C0C0; }
        .hot-rank.top3 { color: #CD7F32; }
        .hot-teams {
            flex: 1;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
        }
        .hot-score {
            font-size: 15px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
        }
        .hot-status {
            font-size: 11px;
            padding: 3px 8px;
            border-radius: 999px;
            flex-shrink: 0;
        }

        .data-support-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 14px;
            margin-bottom: 28px;
        }
        .data-support-card {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .data-support-card:hover {
            border-color: var(--border-primary);
            box-shadow: var(--shadow-sm);
        }
        .data-support-number {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.01em;
            margin-bottom: 4px;
        }
        .data-support-label {
            font-size: 13px;
            color: var(--text-muted);
            font-weight: 500;
        }

        .channel-entry-section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 12px;
            margin-bottom: 28px;
        }
        .channel-entry-card {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            background-color: var(--surface);
            border: 1px solid var(--border);
            transition: all var(--transition-base);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
        }
        .channel-entry-card:hover {
            border-color: var(--border-primary);
            background-color: var(--card-hover);
            color: var(--text);
            transform: translateY(-1px);
        }
        .channel-entry-card i {
            color: var(--primary);
            font-size: 16px;
            width: 20px;
            text-align: center;
        }

        .brand-section {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-left: 3px solid var(--primary);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            margin-bottom: 28px;
        }
        .brand-section h2 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .brand-section p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .cta-section {
            background: linear-gradient(135deg, var(--primary-glow), var(--accent-glow));
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-text {
            flex: 1;
            min-width: 220px;
        }
        .cta-text h2 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }
        .cta-text p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .cta-form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .cta-input {
            background-color: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 9px 14px;
            font-size: 14px;
            color: var(--text);
            min-width: 220px;
            transition: border-color var(--transition-base);
        }
        .cta-input::placeholder {
            color: var(--text-faint);
        }
        .cta-input:focus {
            border-color: var(--primary);
            outline: none;
        }
        .btn-primary {
            background-color: var(--primary);
            color: #000;
            font-weight: 700;
            font-size: 14px;
            padding: 9px 20px;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background-color: var(--primary-dark);
            box-shadow: 0 0 16px rgba(0, 229, 160, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .faq-section {
            margin-bottom: 28px;
        }
        .faq-section h2 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
        }
        .faq-item {
            background-color: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 8px;
            overflow: hidden;
            transition: border-color var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-primary);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 16px;
            cursor: pointer;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            transition: color var(--transition-base);
            gap: 10px;
            user-select: none;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 13px;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            padding: 0 16px;
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 16px 14px;
        }

        .load-more-wrap {
            text-align: center;
            padding: 8px 0 16px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 22px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-primary);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background-color: transparent;
            transition: all var(--transition-base);
        }
        .btn-outline:hover {
            background-color: var(--primary-glow);
            border-color: var(--primary);
            color: var(--text);
        }

        @media (max-width: 1024px) {
            .main-content {
                padding: 0 20px 32px;
            }
            .match-card-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: var(--shadow-lg);
            }
            .sidebar-overlay {
                display: block;
                pointer-events: none;
            }
            .sidebar-overlay.show {
                pointer-events: auto;
            }
            .mobile-header {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 56px;
            }
            .main-content {
                padding: 0 16px 28px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .category-hero p {
                font-size: 13px;
            }
            .match-card-grid {
                grid-template-columns: 1fr;
            }
            .data-support-section {
                grid-template-columns: repeat(2, 1fr);
            }
            .channel-entry-section {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-section {
                flex-direction: column;
                text-align: center;
            }
            .cta-form {
                width: 100%;
                justify-content: center;
            }
            .cta-input {
                min-width: 0;
                flex: 1;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .data-support-section {
                grid-template-columns: 1fr;
            }
            .channel-entry-section {
                grid-template-columns: 1fr;
            }
            .hot-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .hot-teams {
                flex-basis: calc(100% - 40px);
            }
            .match-teams {
                flex-wrap: wrap;
                justify-content: center;
            }
            .match-team {
                font-size: 14px;
            }
            .match-score {
                font-size: 20px;
            }
        }

/* roulang page: category5 */
:root {
            --bg: #0A0F0E;
            --bg-secondary: #0D1412;
            --surface: #0F1714;
            --card: #111D1A;
            --card-hover: #15231F;
            --primary: #00E5A0;
            --primary-dark: #00C88A;
            --primary-glow: rgba(0, 229, 160, 0.15);
            --accent: #FFB800;
            --accent-glow: rgba(255, 184, 0, 0.12);
            --text: #E8F0ED;
            --text-secondary: #B4C4BF;
            --text-muted: #94A8A2;
            --text-faint: #657A73;
            --border: rgba(255, 255, 255, 0.08);
            --border-primary: rgba(0, 229, 160, 0.25);
            --border-accent: rgba(255, 184, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --sidebar-width: 238px;
            --font-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-base);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            color: var(--primary);
        }
        button, input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }
        /* ============ Sidebar Navigation ============ */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background-color: var(--bg-secondary);
            border-right: 1px solid var(--border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
            overflow-y: auto;
        }
        .sidebar-brand {
            padding: 20px 20px 16px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .sidebar-brand-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, #00B8F0 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: #000;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .sidebar-brand-name {
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text);
            white-space: nowrap;
        }
        .sidebar-brand-name span {
            color: var(--primary);
        }
        .sidebar-nav {
            padding: 12px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--text-faint);
            padding: 8px 12px 4px;
            font-weight: 600;
        }
        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: background var(--transition-base), color var(--transition-base);
            position: relative;
        }
        .sidebar-link i {
            width: 18px;
            text-align: center;
            font-size: 14px;
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .sidebar-link:hover {
            background: rgba(255, 255, 255, 0.04);
            color: var(--text);
        }
        .sidebar-link:hover i {
            color: var(--primary);
        }
        .sidebar-link.active {
            background: var(--primary-glow);
            color: var(--primary);
            font-weight: 600;
        }
        .sidebar-link.active i {
            color: var(--primary);
        }
        .sidebar-link.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            height: 24px;
            width: 3px;
            background: var(--primary);
            border-radius: 0 2px 2px 0;
        }
        .sidebar-footer {
            padding: 14px 16px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-faint);
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-live-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            margin-right: 6px;
            animation: pulse-dot 1.8s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }
        /* ============ Main Layout ============ */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content {
            flex: 1;
            max-width: 1180px;
            width: 100%;
            margin: 0 auto;
            padding: 0 28px 40px;
        }
        /* ============ Mobile Header ============ */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background-color: rgba(10, 15, 14, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 10px 16px;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-header-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
        }
        .mobile-header-brand span {
            color: var(--primary);
        }
        .mobile-hamburger {
            width: 36px;
            height: 36px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: 16px;
            transition: background var(--transition-base);
        }
        .mobile-hamburger:hover {
            background: rgba(255,255,255,0.05);
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 260px;
            background: var(--bg-secondary);
            border-right: 1px solid var(--border);
            z-index: 1001;
            transform: translateX(-100%);
            transition: transform var(--transition-slow);
            display: flex;
            flex-direction: column;
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer-close {
            position: absolute;
            top: 12px;
            right: 12px;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(255,255,255,0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
        }
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.6);
            z-index: 1000;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-slow);
        }
        .drawer-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }
        .drawer-nav {
            padding: 80px 16px 20px;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        /* ============ Breadcrumb ============ */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            padding: 20px 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-faint);
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }
        /* ============ Category Hero ============ */
        .category-hero {
            padding: 24px 0 16px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 28px;
        }
        .category-hero h1 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: 0.01em;
            color: var(--text);
            margin: 0 0 10px;
            line-height: 1.3;
        }
        .category-hero h1 span {
            color: var(--primary);
        }
        .category-hero p {
            font-size: 16px;
            color: var(--text-secondary);
            margin: 0;
            max-width: 720px;
            line-height: 1.7;
        }
        /* ============ Filter Tags ============ */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin: 16px 0 0;
        }
        .filter-tag {
            padding: 6px 14px;
            border-radius: 20px;
            border: 1px solid var(--border);
            background: var(--surface);
            color: var(--text-muted);
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition-base);
            cursor: default;
        }
        .filter-tag.active {
            background: var(--primary-glow);
            border-color: var(--border-primary);
            color: var(--primary);
            font-weight: 600;
        }
        .filter-tag:hover {
            border-color: var(--border-primary);
            color: var(--text);
            transform: translateY(-1px);
        }
        /* ============ Section Styles ============ */
        .section {
            margin-bottom: 40px;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 20px;
            gap: 16px;
            flex-wrap: wrap;
        }
        .section-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.01em;
            margin: 0;
        }
        .section-title i {
            color: var(--primary);
            margin-right: 8px;
        }
        .section-subtitle {
            font-size: 14px;
            color: var(--text-muted);
            margin: 4px 0 0;
        }
        .section-link {
            font-size: 13px;
            color: var(--primary);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-base);
        }
        .section-link:hover {
            color: var(--accent);
        }
        /* ============ Cards & Grids ============ */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 16px;
        }
        .card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-primary);
        }
        .card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            background: var(--surface);
        }
        .card-body {
            padding: 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.4;
            margin: 0;
        }
        .card-text {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--text-faint);
            margin-top: auto;
        }
        .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .card-tag {
            display: inline-block;
            padding: 2px 8px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
            background: var(--primary-glow);
            color: var(--primary);
        }
        .card-tag.accent {
            background: var(--accent-glow);
            color: var(--accent);
        }
        /* ============ Team Ranking List ============ */
        .team-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .team-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .team-item:hover {
            background: var(--card-hover);
            border-color: var(--border-primary);
        }
        .team-rank {
            font-size: 20px;
            font-weight: 800;
            color: var(--text-muted);
            width: 36px;
            text-align: center;
            flex-shrink: 0;
        }
        .team-rank.up {
            color: var(--primary);
        }
        .team-rank.down {
            color: #FF6B6B;
        }
        .team-logo {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--surface);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: var(--primary);
            flex-shrink: 0;
            border: 1px solid var(--border);
        }
        .team-info {
            flex: 1;
            min-width: 0;
        }
        .team-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin: 0;
        }
        .team-record {
            font-size: 13px;
            color: var(--text-muted);
        }
        .team-points {
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
            white-space: nowrap;
        }
        .team-trend {
            font-size: 12px;
            color: var(--text-faint);
            white-space: nowrap;
        }
        /* ============ Player Perform ============ */
        .player-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .player-item {
            background: var(--surface);
            border-radius: var(--radius-md);
            padding: 10px 14px;
            display: flex;
            align-items: center;
            gap: 12px;
            border: 1px solid transparent;
            transition: border-color var(--transition-base), background var(--transition-base);
        }
        .player-item:hover {
            border-color: var(--border);
            background: var(--card);
        }
        .player-avatar {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--primary-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
        }
        .player-info {
            flex: 1;
            min-width: 0;
        }
        .player-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin: 0;
        }
        .player-team {
            font-size: 12px;
            color: var(--text-muted);
        }
        .player-stat {
            font-size: 14px;
            font-weight: 700;
            color: var(--text);
            text-align: center;
            white-space: nowrap;
        }
        .player-stat small {
            display: block;
            font-size: 11px;
            font-weight: 400;
            color: var(--text-faint);
        }
        /* ============ Transfer News ============ */
        .news-mini-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-mini-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 14px 16px;
            display: flex;
            gap: 14px;
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .news-mini-item:hover {
            background: var(--card);
            border-color: var(--border-primary);
        }
        .news-mini-date {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
            min-width: 70px;
            padding-top: 2px;
        }
        .news-mini-body {
            flex: 1;
        }
        .news-mini-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
        }
        .news-mini-text {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }
        /* ============ Accent Button ============ */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #000;
            font-weight: 700;
            font-size: 14px;
            transition: all var(--transition-base);
            border: 1px solid transparent;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #000;
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            background: transparent;
            color: var(--text);
            font-weight: 600;
            font-size: 14px;
            border: 1px solid var(--border);
            transition: all var(--transition-base);
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-glow);
        }
        /* ============ CTA Section ============ */
        .cta-section {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-xl);
            padding: 28px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: var(--primary-glow);
            filter: blur(80px);
            pointer-events: none;
        }
        .cta-content {
            flex: 1;
            min-width: 220px;
            position: relative;
            z-index: 1;
        }
        .cta-content h2 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
        }
        .cta-content p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }
        .cta-input-wrap {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .cta-input {
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 14px;
            min-width: 220px;
            transition: border-color var(--transition-base);
        }
        .cta-input::placeholder {
            color: var(--text-faint);
        }
        .cta-input:focus {
            border-color: var(--primary);
        }
        /* ============ Footer ============ */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border);
            padding: 20px 28px;
            margin-top: auto;
        }
        .footer-inner {
            max-width: 1180px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .footer-brand {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
        }
        .footer-brand span {
            color: var(--primary);
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-links a {
            color: var(--text-muted);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-divider {
            color: var(--text-faint);
            margin: 0 4px;
        }
        .footer-copyright {
            font-size: 12px;
            color: var(--text-faint);
        }
        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            }
        }
        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .main-wrapper {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .main-content {
                padding: 70px 16px 28px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .team-item {
                flex-wrap: wrap;
            }
            .team-points, .team-trend {
                margin-left: auto;
            }
            .player-item {
                flex-wrap: wrap;
            }
            .player-stat {
                width: 45%;
                text-align: left;
            }
            .cta-section {
                padding: 20px;
            }
            .site-footer {
                padding: 16px;
            }
            .footer-inner {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 19px;
            }
            .btn-primary, .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .filter-tag {
                padding: 5px 10px;
                font-size: 12px;
            }
            .team-rank {
                width: 28px;
                font-size: 17px;
            }
        }

/* roulang page: category4 */
:root {
            --bg: #0A0F0E;
            --bg-secondary: #0D1412;
            --surface: #0F1714;
            --card: #111D1A;
            --card-hover: #15231F;
            --primary: #00E5A0;
            --primary-dark: #00C88A;
            --primary-glow: rgba(0, 229, 160, 0.15);
            --accent: #FFB800;
            --accent-glow: rgba(255, 184, 0, 0.12);
            --text: #E8F0ED;
            --text-secondary: #B4C4BF;
            --text-muted: #94A8A2;
            --text-faint: #657A73;
            --border: rgba(255, 255, 255, 0.08);
            --border-primary: rgba(0, 229, 160, 0.25);
            --border-accent: rgba(255, 184, 0, 0.25);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
            --sidebar-width: 238px;
            --font-base: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
            --transition-fast: 0.15s ease;
            --transition-base: 0.25s ease;
            --transition-slow: 0.35s ease;
        }

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

        body {
            font-family: var(--font-base);
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.65;
            font-size: 15px;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            color: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        /* ============ Sidebar Navigation ============ */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background-color: var(--bg-secondary);
            border-right: 1px solid var(--border);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-slow), box-shadow var(--transition-slow);
            overflow-y: auto;
        }
        .sidebar-brand {
            padding: 20px 20px 16px;
            border-bottom: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .sidebar-brand-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, #00B8F0 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            color: #000;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }
        .sidebar-brand-name {
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text);
            white-space: nowrap;
        }
        .sidebar-brand-name span {
            color: var(--primary);
        }
        .sidebar-nav {
            padding: 12px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--text-faint);
            padding: 8px 12px 4px;
            font-weight: 600;
        }
        .sidebar-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            transition: all var(--transition-base);
            position: relative;
        }
        .sidebar-link i {
            width: 20px;
            text-align: center;
            font-size: 15px;
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .sidebar-link:hover {
            background: var(--primary-glow);
            color: var(--text);
        }
        .sidebar-link:hover i {
            color: var(--primary);
        }
        .sidebar-link.active {
            background: var(--primary-glow);
            color: var(--primary);
        }
        .sidebar-link.active i {
            color: var(--primary);
        }
        .sidebar-link.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 3px;
            background: var(--primary);
            border-radius: 0 3px 3px 0;
        }
        .sidebar-footer {
            padding: 14px 16px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-faint);
            flex-shrink: 0;
        }

        /* ============ Main Layout ============ */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content {
            flex: 1;
            max-width: 1180px;
            width: 100%;
            margin: 0 auto;
            padding: 0 28px 40px;
        }

        /* ============ Mobile Header ============ */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background-color: rgba(10, 15, 14, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            padding: 10px 16px;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-header-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
        }
        .mobile-header-brand span {
            color: var(--primary);
        }
        .mobile-hamburger {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text);
            font-size: 18px;
            transition: all var(--transition-base);
        }
        .mobile-hamburger:hover {
            border-color: var(--border-primary);
            color: var(--primary);
        }
        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .mobile-overlay.show {
            display: block;
            opacity: 1;
        }

        /* ============ Breadcrumb & Category Hero ============ */
        .category-hero {
            padding: 28px 0 20px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 24px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb-sep {
            color: var(--text-faint);
            font-size: 11px;
        }
        .category-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.01em;
            margin-bottom: 6px;
            line-height: 1.3;
        }
        .category-subtitle {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 680px;
        }

        /* ============ Filter Tags ============ */
        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
        }
        .filter-tag {
            padding: 7px 16px;
            border-radius: 20px;
            border: 1px solid var(--border);
            background: var(--surface);
            color: var(--text-secondary);
            font-size: 13px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            user-select: none;
        }
        .filter-tag:hover {
            border-color: var(--border-primary);
            color: var(--primary);
            background: var(--primary-glow);
        }
        .filter-tag.active {
            border-color: var(--primary);
            color: #000;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 0 16px var(--primary-glow);
        }

        /* ============ Guide List Cards ============ */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 18px;
            margin-bottom: 28px;
        }
        .guide-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            border-color: var(--border-primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            background: var(--card-hover);
        }
        .guide-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: linear-gradient(135deg, #0D1F1A 0%, #142823 50%, #0D1412 100%);
            flex-shrink: 0;
        }
        .guide-card-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .guide-card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
            font-size: 12px;
            color: var(--text-faint);
        }
        .guide-card-date {
            font-weight: 500;
        }
        .guide-card-tag {
            padding: 3px 10px;
            border-radius: 10px;
            font-size: 11px;
            font-weight: 600;
            background: var(--primary-glow);
            color: var(--primary);
            border: 1px solid var(--border-primary);
        }
        .guide-card-tag.accent {
            background: var(--accent-glow);
            color: var(--accent);
            border-color: var(--border-accent);
        }
        .guide-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.45;
            margin-bottom: 6px;
            transition: color var(--transition-base);
        }
        .guide-card:hover .guide-card-title {
            color: var(--primary);
        }
        .guide-card-excerpt {
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }
        .guide-card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition-base);
            align-self: flex-start;
        }
        .guide-card-link i {
            font-size: 12px;
            transition: transform var(--transition-base);
        }
        .guide-card-link:hover {
            color: var(--primary-dark);
        }
        .guide-card-link:hover i {
            transform: translateX(3px);
        }

        /* ============ Hot Ranking Section ============ */
        .hot-ranking {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 20px 22px;
            margin-bottom: 28px;
        }
        .hot-ranking-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
            flex-wrap: wrap;
            gap: 10px;
        }
        .hot-ranking-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hot-ranking-title i {
            color: var(--accent);
            font-size: 16px;
        }
        .hot-ranking-badge {
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 11px;
            font-weight: 600;
            background: var(--accent-glow);
            color: var(--accent);
            border: 1px solid var(--border-accent);
        }
        .hot-ranking-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .hot-ranking-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            background: var(--card);
            border: 1px solid transparent;
            transition: all var(--transition-base);
            cursor: pointer;
        }
        .hot-ranking-item:hover {
            border-color: var(--border-primary);
            background: var(--card-hover);
        }
        .hot-rank-num {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
            background: var(--surface);
            color: var(--text-muted);
            border: 1px solid var(--border);
        }
        .hot-rank-num.top1 {
            background: var(--accent);
            color: #000;
            border-color: var(--accent);
        }
        .hot-rank-num.top2 {
            background: #C0C0C0;
            color: #000;
            border-color: #C0C0C0;
        }
        .hot-rank-num.top3 {
            background: #CD7F32;
            color: #000;
            border-color: #CD7F32;
        }
        .hot-rank-info {
            flex: 1;
            min-width: 0;
        }
        .hot-rank-name {
            font-size: 13.5px;
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .hot-rank-stat {
            font-size: 12px;
            color: var(--text-faint);
        }
        .hot-rank-trend {
            font-size: 12px;
            font-weight: 600;
            flex-shrink: 0;
        }
        .hot-rank-trend.up {
            color: var(--primary);
        }
        .hot-rank-trend.down {
            color: #FF5A5A;
        }
        .hot-rank-trend.flat {
            color: var(--text-faint);
        }

        /* ============ Data Support Section ============ */
        .data-support {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 14px;
            margin-bottom: 28px;
        }
        .data-support-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
            transition: all var(--transition-base);
        }
        .data-support-card:hover {
            border-color: var(--border-primary);
            background: var(--card);
        }
        .data-support-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 4px;
            letter-spacing: -0.5px;
        }
        .data-support-num.accent {
            color: var(--accent);
        }
        .data-support-label {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ============ Topic Cards ============ */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
            margin-bottom: 28px;
        }
        .topic-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .topic-card:hover {
            border-color: var(--border-accent);
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .topic-card-img {
            width: 100%;
            height: 120px;
            object-fit: cover;
            background: linear-gradient(135deg, #1A1A0D 0%, #2A2410 50%, #0D1412 100%);
        }
        .topic-card-body {
            padding: 14px 16px 16px;
        }
        .topic-card-title {
            font-size: 14.5px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .topic-card-desc {
            font-size: 12.5px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ============ FAQ Section ============ */
        .faq-section {
            margin-bottom: 28px;
        }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 8px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-primary);
        }
        .faq-question {
            padding: 14px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            user-select: none;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 13px;
            color: var(--text-faint);
            transition: all var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-inner {
            padding: 0 18px 16px;
            font-size: 13.5px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ============ CTA Section ============ */
        .cta-section {
            background: linear-gradient(135deg, #0F1D1A 0%, #111D1A 40%, #1A1A0D 100%);
            border: 1px solid var(--border-primary);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }
        .cta-text {
            flex: 1;
            min-width: 240px;
        }
        .cta-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }
        .cta-desc {
            font-size: 13.5px;
            color: var(--text-muted);
        }
        .cta-form {
            display: flex;
            gap: 8px;
            flex-shrink: 0;
            flex-wrap: wrap;
        }
        .cta-input {
            padding: 10px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            background: var(--bg);
            color: var(--text);
            font-size: 14px;
            width: 220px;
            transition: all var(--transition-base);
        }
        .cta-input::placeholder {
            color: var(--text-faint);
        }
        .cta-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-glow);
        }
        .cta-btn {
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            background: var(--primary);
            color: #000;
            font-weight: 700;
            font-size: 14px;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .cta-btn:hover {
            background: var(--primary-dark);
            box-shadow: 0 0 20px var(--primary-glow);
            transform: translateY(-1px);
        }
        .cta-btn:active {
            transform: translateY(0);
            box-shadow: none;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border);
            padding: 20px 28px 16px;
            margin-top: auto;
        }
        .footer-inner {
            max-width: 1180px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-brand {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
        }
        .footer-brand span {
            color: var(--primary);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-divider {
            color: var(--text-faint);
            font-size: 11px;
        }
        .footer-copyright {
            font-size: 12px;
            color: var(--text-faint);
        }

        /* ============ Section Titles ============ */
        .section-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
            letter-spacing: 0.01em;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-title i {
            color: var(--primary);
            font-size: 17px;
        }
        .section-sub {
            font-size: 13.5px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-support {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            :root {
                --sidebar-width: 0px;
            }
            .sidebar {
                transform: translateX(-100%);
                width: 260px;
                box-shadow: none;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: var(--shadow-lg);
            }
            .mobile-header {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 60px;
            }
            .main-content {
                padding: 0 16px 32px;
            }
            .category-hero {
                padding: 20px 0 16px;
            }
            .category-title {
                font-size: 23px;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .data-support {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .data-support-card {
                padding: 14px 12px;
            }
            .data-support-num {
                font-size: 22px;
            }
            .cta-section {
                flex-direction: column;
                align-items: stretch;
                padding: 22px 18px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-input {
                width: 100%;
            }
            .cta-btn {
                width: 100%;
                text-align: center;
            }
            .footer-inner {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .footer-links {
                justify-content: center;
            }
            .hot-ranking-header {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .data-support {
                grid-template-columns: 1fr 1fr;
            }
            .filter-tag {
                padding: 6px 13px;
                font-size: 12px;
            }
            .guide-card-img {
                height: 150px;
            }
            .guide-card-body {
                padding: 12px 14px 14px;
            }
            .guide-card-title {
                font-size: 15.5px;
            }
            .section-title {
                font-size: 17px;
            }
        }

        /* ============ Utilities ============ */
        .text-primary {
            color: var(--primary);
        }
        .text-accent {
            color: var(--accent);
        }
        .text-muted {
            color: var(--text-muted);
        }
        .border-primary {
            border-color: var(--border-primary);
        }
        .bg-surface {
            background: var(--surface);
        }
        .bg-card {
            background: var(--card);
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 12px;
        }
        .gap-4 {
            gap: 16px;
        }
        .mb-2 {
            margin-bottom: 8px;
        }
        .mb-3 {
            margin-bottom: 12px;
        }
        .mb-4 {
            margin-bottom: 16px;
        }
        .mb-6 {
            margin-bottom: 24px;
        }
        .mt-2 {
            margin-top: 8px;
        }
        .mt-4 {
            margin-top: 16px;
        }
        .w-full {
            width: 100%;
        }
        .relative {
            position: relative;
        }
        .overflow-hidden {
            overflow: hidden;
        }
        .rounded-md {
            border-radius: var(--radius-md);
        }
        .rounded-lg {
            border-radius: var(--radius-lg);
        }
        .transition-base {
            transition: all var(--transition-base);
        }