/* roulang page: index */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #111826;
            --bg-card: #131C2A;
            --bg-card-hover: #182333;
            --accent-green: #00E676;
            --accent-green-dim: rgba(0, 230, 118, 0.14);
            --accent-orange: #FF8A3C;
            --accent-red: #F43F5E;
            --text-primary: #E8EDF5;
            --text-secondary: #A8B3C0;
            --text-muted: #657282;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(0, 230, 118, 0.35);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.28);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.48);
            --radius-card: 12px;
            --radius-btn: 999px;
            --radius-chip: 999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, system-ui, sans-serif;
            --font-mono: 'Roboto Mono', 'JetBrains Mono', 'Consolas', monospace;
            --section-padding-desktop: 80px;
            --section-padding-mobile: 52px;
            --nav-height: 68px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.24s ease;
        }

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

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-green);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #5CF5A8;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
        }

        .section {
            padding-top: var(--section-padding-desktop);
            padding-bottom: var(--section-padding-desktop);
            position: relative;
        }
        .section--tight {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .section--dark {
            background-color: var(--bg-primary);
        }
        .section--secondary {
            background-color: var(--bg-secondary);
        }
        .section--card-bg {
            background-color: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-green);
            margin-bottom: 16px;
            background: var(--accent-green-dim);
            padding: 6px 16px;
            border-radius: var(--radius-chip);
            border: 1px solid var(--border-hover);
        }
        .section-label::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.6);
        }

        .section-title {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .section-title .mono-highlight {
            font-family: var(--font-mono);
            color: var(--accent-green);
            font-weight: 800;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 36px;
        }

        .card-base {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
        }
        .card-base:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .stat-number {
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: clamp(32px, 4.5vw, 46px);
            line-height: 1.2;
            color: var(--accent-green);
        }
        .stat-number--orange {
            color: var(--accent-orange);
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-top: 4px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(10, 14, 20, 0.98);
            border-bottom-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 24px;
        }

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }
        .logo-brand .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--accent-green);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 16px;
            color: var(--bg-primary);
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
            flex-shrink: 0;
        }
        .logo-brand:hover {
            color: var(--text-primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: block;
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav-links li a.active {
            color: var(--accent-green);
            background: var(--accent-green-dim);
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: rgba(255, 138, 60, 0.12);
            border: 1px solid rgba(255, 138, 60, 0.4);
            padding: 7px 16px;
            border-radius: var(--radius-chip);
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-orange);
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }
        .nav-chip .dot-pulse {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-orange);
            animation: pulse-dot 2s ease-in-out infinite;
        }
        .nav-chip:hover {
            border-color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.22);
            color: #FFB380;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.45; transform: scale(0.7); }
        }

        .hamburger-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            color: var(--text-primary);
            padding: 8px 12px;
            font-size: 22px;
            line-height: 1;
            transition: border-color var(--transition-fast);
        }
        .hamburger-btn:hover {
            border-color: var(--accent-green);
        }

        .mobile-nav {
            display: none;
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 20px;
            flex-direction: column;
            gap: 6px;
            position: absolute;
            top: var(--nav-height);
            left: 0;
            right: 0;
            z-index: 1049;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            padding: 12px 14px;
            border-radius: 8px;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            transition: background var(--transition-fast), color var(--transition-fast);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        /* ========== Hero ========== */
        .hero-section {
            min-height: calc(100vh - var(--nav-height));
            padding: 64px 0 48px;
            position: relative;
            background: url('/assets/images/7e6733c7d9b10ba5.webp') center / cover no-repeat;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 20, 0.86) 0%, rgba(10, 14, 20, 0.94) 60%, var(--bg-primary) 100%);
            z-index: 0;
        }
        .hero-section > .container {
            position: relative;
            z-index: 1;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-title {
            font-size: clamp(34px, 5.4vw, 54px);
            font-weight: 800;
            line-height: 1.18;
            margin-bottom: 18px;
            letter-spacing: -0.025em;
            color: var(--text-primary);
        }
        .hero-title .accent {
            color: var(--accent-green);
            font-family: var(--font-mono);
            font-weight: 800;
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text-secondary);
            max-width: 520px;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .btn {
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            padding: 13px 28px;
            transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: none;
        }
        .btn-primary {
            background: var(--accent-green);
            color: var(--bg-primary);
            box-shadow: 0 4px 18px rgba(0, 230, 118, 0.3);
        }
        .btn-primary:hover {
            background: #5CF5A8;
            color: var(--bg-primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 28px rgba(0, 230, 118, 0.42);
        }
        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text-primary);
        }
        .btn-outline-light:hover {
            border-color: var(--accent-green);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 13px;
        }

        /* 数据权益墙 */
        .voucher-wall {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .voucher-main {
            background: var(--bg-card);
            border: 1.5px solid var(--accent-green);
            border-radius: var(--radius-card);
            padding: 26px;
            box-shadow: 0 0 36px rgba(0, 230, 118, 0.14);
            position: relative;
            overflow: hidden;
        }
        .voucher-main::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at 30% 20%, rgba(0, 230, 118, 0.07), transparent 60%);
            pointer-events: none;
        }
        .voucher-main .voucher-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--bg-primary);
            background: var(--accent-green);
            padding: 4px 12px;
            border-radius: var(--radius-chip);
            margin-bottom: 12px;
        }
        .voucher-main h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .voucher-main p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 16px;
            line-height: 1.65;
        }
        .voucher-main .btn {
            font-size: 14px;
            padding: 11px 22px;
        }

        .voucher-mini-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .voucher-mini {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 18px 16px;
            transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
            cursor: default;
        }
        .voucher-mini:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
            transform: translateY(-2px);
        }
        .voucher-mini .v-icon {
            font-size: 20px;
            color: var(--accent-green);
            margin-bottom: 8px;
        }
        .voucher-mini h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .voucher-mini p {
            font-size: 12px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* ticker */
        .ticker-bar {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 10px 0;
            overflow: hidden;
            position: relative;
        }
        .ticker-content {
            display: flex;
            gap: 40px;
            animation: ticker-scroll 28s linear infinite;
            width: max-content;
            white-space: nowrap;
        }
        .ticker-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-secondary);
        }
        .ticker-item .live-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-red);
            animation: pulse-dot 1.4s ease-in-out infinite;
            flex-shrink: 0;
        }
        .ticker-item .score {
            color: var(--accent-green);
            font-weight: 700;
        }
        @keyframes ticker-scroll {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        /* ========== 痛点 ========== */
        .pain-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .pain-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: transform var(--transition-fast), border-color var(--transition-fast);
        }
        .pain-card:hover {
            border-color: rgba(244, 63, 94, 0.4);
            transform: translateY(-3px);
        }
        .pain-num {
            font-family: var(--font-mono);
            font-size: 36px;
            font-weight: 800;
            color: var(--accent-red);
            opacity: 0.65;
            line-height: 1;
            flex-shrink: 0;
        }
        .pain-card h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .pain-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.65;
        }

        /* ========== 解决方案 ========== */
        .solution-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .solution-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .solution-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }
        .solution-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: var(--accent-green-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-green);
            margin-bottom: 16px;
        }
        .solution-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .solution-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.65;
        }

        /* ========== 步骤 ========== */
        .steps-wrapper {
            display: flex;
            align-items: flex-start;
            gap: 0;
            position: relative;
            counter-reset: step;
        }
        .step-item {
            flex: 1;
            text-align: center;
            position: relative;
            padding: 0 12px;
        }
        .step-dot {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--bg-card);
            border: 2px solid var(--accent-green);
            color: var(--accent-green);
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            position: relative;
            z-index: 1;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast);
        }
        .step-item:hover .step-dot {
            transform: scale(1.06);
            box-shadow: 0 0 20px rgba(0, 230, 118, 0.3);
        }
        .step-line {
            position: absolute;
            top: 26px;
            left: calc(50% + 26px);
            right: calc(-50% + 26px);
            height: 2px;
            background: var(--border-color);
            z-index: 0;
        }
        .step-item:last-child .step-line {
            display: none;
        }
        .step-item h3 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .step-item p {
            font-size: 13px;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.55;
        }

        /* ========== 资讯流 + 热榜 ========== */
        .dual-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 32px;
            align-items: start;
        }
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .news-item {
            display: flex;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 16px;
            transition: transform var(--transition-fast), border-color var(--transition-fast);
            align-items: center;
        }
        .news-item:hover {
            border-color: var(--border-hover);
            transform: translateX(3px);
        }
        .news-item img {
            width: 92px;
            height: 60px;
            object-fit: cover;
            border-radius: 8px;
            flex-shrink: 0;
        }
        .news-item .news-body h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .news-item .news-body p {
            font-size: 12px;
            color: var(--text-muted);
            margin: 0;
        }

        .hot-list {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px;
        }
        .hot-list h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .hot-list h3::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-orange);
            animation: pulse-dot 2s ease-in-out infinite;
            flex-shrink: 0;
        }
        .hot-list ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .hot-list ol li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
            color: var(--text-secondary);
        }
        .hot-list ol li:last-child {
            border-bottom: none;
        }
        .hot-list .rank {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 16px;
            color: var(--accent-orange);
            width: 24px;
            flex-shrink: 0;
        }
        .hot-list .rank.r1 { color: var(--accent-green); }
        .hot-list .rank.r2 { color: #5CF5A8; }

        /* ========== 数据成果统计 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .stat-card {
            text-align: center;
            padding: 26px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            transition: transform var(--transition-fast), border-color var(--transition-fast);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
        }

        /* ========== 品牌介绍 ========== */
        .brand-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }
        .brand-text p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 2.0;
            margin-bottom: 16px;
        }
        .brand-text p:last-child {
            margin-bottom: 0;
        }
        .brand-image {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
        }
        .brand-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        /* ========== 专题条 ========== */
        .topic-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .topic-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 14px 20px;
            transition: transform var(--transition-fast), border-color var(--transition-fast);
        }
        .topic-item:hover {
            border-color: var(--border-hover);
            transform: translateX(3px);
        }
        .topic-item .t-badge {
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
            background: var(--accent-green-dim);
            padding: 4px 12px;
            border-radius: var(--radius-chip);
            flex-shrink: 0;
        }
        .topic-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0;
            flex: 1;
        }
        .topic-item .t-date {
            font-size: 13px;
            color: var(--text-muted);
            flex-shrink: 0;
            font-family: var(--font-mono);
        }

        /* ========== 证言 ========== */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .testimonial-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
        }
        .testimonial-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .testimonial-avatar {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--accent-green-dim);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent-green);
            flex-shrink: 0;
            font-weight: 700;
            font-family: var(--font-mono);
        }
        .testimonial-head h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }
        .testimonial-head span {
            font-size: 12px;
            color: var(--text-muted);
        }
        .testimonial-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* ========== 适用人群 ========== */
        .audience-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .audience-tag {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-chip);
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: transform var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
            cursor: default;
        }
        .audience-tag:hover {
            border-color: var(--accent-green);
            color: var(--text-primary);
            transform: translateY(-2px);
        }
        .audience-tag .a-icon {
            color: var(--accent-green);
            font-size: 16px;
        }

        /* ========== 指标看板 ========== */
        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .dash-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            text-align: center;
        }
        .dash-card .dash-value {
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: clamp(28px, 3vw, 38px);
            color: var(--accent-green);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .dash-card .dash-value.orange {
            color: var(--accent-orange);
        }
        .dash-card .dash-trend {
            font-size: 12px;
            color: var(--accent-green);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 4px;
        }
        .dash-card .dash-trend.down {
            color: var(--accent-red);
        }
        .dash-card .dash-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ========== 最新动态 ========== */
        .dynamic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .dynamic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .dynamic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
        }
        .dynamic-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }
        .dynamic-body {
            padding: 18px 20px;
        }
        .dynamic-body h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .dynamic-body p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 10px;
            line-height: 1.55;
        }
        .dynamic-body .d-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--accent-green);
        }

        /* ========== 媒体合作 ========== */
        .media-list {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
            justify-content: center;
        }
        .media-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 14px 24px;
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
            transition: transform var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
            cursor: default;
        }
        .media-item:hover {
            border-color: var(--border-hover);
            color: var(--text-primary);
            transform: translateY(-2px);
        }

        /* ========== 分类入口 ========== */
        .category-chips {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .category-chip-link {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-chip);
            padding: 11px 22px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: transform var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
        }
        .category-chip-link:hover {
            border-color: var(--accent-green);
            color: var(--text-primary);
            background: var(--bg-card-hover);
            transform: translateY(-2px);
        }
        .category-chip-link .c-icon {
            color: var(--accent-green);
            font-size: 16px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
            max-width: 840px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 22px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }
        .faq-question:hover {
            color: var(--accent-green);
        }
        .faq-num {
            font-family: var(--font-mono);
            font-size: 14px;
            color: var(--accent-green);
            flex-shrink: 0;
            font-weight: 700;
        }
        .faq-arrow {
            margin-left: auto;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            font-size: 16px;
            flex-shrink: 0;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--accent-green);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            max-height: 240px;
            padding: 0 22px 18px;
        }
        .faq-item.open {
            border-left: 3px solid var(--accent-green);
        }

        /* ========== 订阅 ========== */
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }
        .subscribe-form input {
            flex: 1;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 13px 22px;
            font-size: 15px;
            color: var(--text-primary);
            font-family: var(--font-sans);
            transition: border-color var(--transition-fast);
        }
        .subscribe-form input::placeholder {
            color: var(--text-muted);
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.12);
        }
        .subscribe-form .btn {
            flex-shrink: 0;
        }

        /* ========== 最终 CTA ========== */
        .cta-banner {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 42px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
            background-image: radial-gradient(circle at 20% 50%, rgba(0, 230, 118, 0.08), transparent 50%);
        }
        .cta-banner h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .cta-banner p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
        }
        .cta-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-color);
            padding: 40px 0 24px;
        }
        .footer-brand {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand .logo-mark {
            width: 30px;
            height: 30px;
            background: var(--accent-green);
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 800;
            font-size: 13px;
            color: var(--bg-primary);
        }
        .footer-desc {
            font-size: 13px;
            color: var(--text-muted);
            max-width: 420px;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-green);
        }
        .footer-bottom {
            margin-top: 28px;
            padding-top: 16px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom .domain {
            font-family: var(--font-mono);
            color: var(--text-secondary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1199px) {
            .solution-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .testimonial-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .dashboard-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 991px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .pain-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .dual-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .dynamic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .nav-links {
                display: none;
            }
            .hamburger-btn {
                display: inline-flex;
            }
            .nav-chip {
                display: none;
            }
            .mobile-nav .nav-chip-mobile {
                display: inline-flex;
                align-items: center;
                gap: 7px;
                background: rgba(255, 138, 60, 0.12);
                border: 1px solid rgba(255, 138, 60, 0.4);
                padding: 8px 16px;
                border-radius: var(--radius-chip);
                font-size: 13px;
                color: var(--accent-orange);
                margin: 4px 14px 10px;
            }
        }

        @media (max-width: 767px) {
            .section {
                padding-top: var(--section-padding-mobile);
                padding-bottom: var(--section-padding-mobile);
            }
            .hero-section {
                padding: 36px 0 28px;
            }
            .solution-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .dashboard-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .dynamic-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .voucher-mini-grid {
                grid-template-columns: 1fr;
            }
            .steps-wrapper {
                flex-direction: column;
                gap: 18px;
                align-items: stretch;
            }
            .step-item {
                text-align: left;
                display: flex;
                align-items: flex-start;
                gap: 16px;
                padding: 0;
            }
            .step-dot {
                margin: 0;
                width: 44px;
                height: 44px;
                font-size: 17px;
                flex-shrink: 0;
            }
            .step-line {
                display: none;
            }
            .step-item h3 {
                margin-bottom: 4px;
            }
            .cta-banner {
                flex-direction: column;
                text-align: center;
                padding: 28px 20px;
            }
            .cta-actions {
                justify-content: center;
                flex-wrap: wrap;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .news-item img {
                width: 72px;
                height: 48px;
            }
            .brand-image img {
                height: 200px;
            }
            .ticker-content {
                animation-duration: 18s;
            }
        }

        @media (max-width: 575px) {
            .dashboard-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .voucher-main {
                padding: 20px;
            }
            .voucher-main h3 {
                font-size: 18px;
            }
            .audience-tag {
                padding: 8px 16px;
                font-size: 13px;
            }
            .news-item {
                padding: 12px;
                gap: 10px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #111826;
            --bg-card: #131C2A;
            --bg-card-hover: #182333;
            --accent-green: #00E676;
            --accent-green-dim: rgba(0, 230, 118, 0.14);
            --accent-orange: #FF8A3C;
            --accent-red: #F43F5E;
            --text-primary: #E8EDF5;
            --text-secondary: #A8B3C0;
            --text-muted: #657282;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(0, 230, 118, 0.35);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.28);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.48);
            --radius-card: 12px;
            --radius-btn: 999px;
            --radius-chip: 999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, system-ui, sans-serif;
            --font-mono: 'Roboto Mono', 'JetBrains Mono', 'Consolas', monospace;
            --section-padding-desktop: 80px;
            --section-padding-mobile: 52px;
            --nav-height: 68px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.24s ease;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-green);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #5CF5A8;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
        }

        .section {
            padding-top: var(--section-padding-desktop);
            padding-bottom: var(--section-padding-desktop);
            position: relative;
        }

        .section--tight {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .section--dark {
            background-color: var(--bg-primary);
        }

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

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-green);
            margin-bottom: 16px;
            background: var(--accent-green-dim);
            padding: 6px 16px;
            border-radius: var(--radius-chip);
            border: 1px solid var(--border-hover);
        }

        .section-label::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.6);
        }

        .section-title {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .section-title .mono-highlight {
            font-family: var(--font-mono);
            color: var(--accent-green);
            font-weight: 800;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 36px;
        }

        .card-base {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
        }

        .card-base:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(10, 14, 20, 0.98);
            border-bottom-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 24px;
        }

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }

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

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            font-size: 16px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 18px;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: inline-block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 6px;
            position: relative;
            white-space: nowrap;
            transition: color var(--transition-fast);
        }

        .nav-links li a:hover {
            color: var(--text-primary);
        }

        .nav-links li a.active {
            color: var(--accent-green);
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            left: 6px;
            right: 6px;
            bottom: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--accent-green);
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.6);
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            border-radius: var(--radius-chip);
            padding: 6px 14px;
            white-space: nowrap;
            transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
        }

        .nav-chip:hover {
            background: rgba(0, 230, 118, 0.22);
            border-color: rgba(0, 230, 118, 0.5);
            color: #5CF5A8;
        }

        .dot-pulse {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            display: inline-block;
            animation: dotPulse 1.6s ease-in-out infinite;
            flex-shrink: 0;
        }

        @keyframes dotPulse {
            0%, 100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(0, 230, 118, 0.5);
            }
            50% {
                opacity: 0.6;
                box-shadow: 0 0 0 6px rgba(0, 230, 118, 0);
            }
        }

        .hamburger-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 22px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: border-color var(--transition-fast), background var(--transition-fast);
            flex-shrink: 0;
        }

        .hamburger-btn:hover {
            border-color: var(--border-hover);
            background: var(--bg-card);
        }

        .mobile-nav {
            display: none;
            position: absolute;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 20px 24px;
            flex-direction: column;
            gap: 4px;
            z-index: 1040;
            box-shadow: var(--shadow-lg);
        }

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

        .mobile-nav a {
            padding: 12px 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: background var(--transition-fast), color var(--transition-fast);
        }

        .mobile-nav a:hover {
            background: var(--bg-card);
            color: var(--text-primary);
        }

        .mobile-nav a.active {
            color: var(--accent-green);
            background: var(--accent-green-dim);
        }

        .nav-chip-mobile {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 12px;
            padding: 10px 16px;
            border-radius: var(--radius-chip);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            color: var(--accent-green);
            font-size: 13px;
            font-weight: 600;
            width: fit-content;
        }

        /* ========== Breadcrumb Hero ========== */
        .category-hero {
            background: var(--bg-primary);
            background-image: radial-gradient(ellipse at 85% 30%, rgba(0, 230, 118, 0.07), transparent 55%),
                              radial-gradient(ellipse at 15% 80%, rgba(255, 138, 60, 0.04), transparent 45%);
            border-bottom: 1px solid var(--border-color);
            padding: 36px 0 32px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 230, 118, 0.3), transparent);
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb-custom a:hover {
            color: var(--accent-green);
        }

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

        .breadcrumb-custom .current {
            color: var(--accent-green);
            font-weight: 500;
        }

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

        .category-hero-text {
            max-width: 720px;
        }

        .category-hero h1 {
            font-size: clamp(26px, 4vw, 40px);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .category-hero h1 .mono-highlight {
            font-family: var(--font-mono);
            color: var(--accent-green);
            font-weight: 800;
        }

        .category-hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.75;
        }

        .hero-status-chip {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            border: 1px solid var(--border-hover);
            background: var(--accent-green-dim);
            color: var(--accent-green);
            font-size: 13px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: var(--radius-chip);
            white-space: nowrap;
            flex-shrink: 0;
            margin-top: 4px;
        }

        /* ========== Stats Bar ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
        }

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

        .stat-number {
            font-family: var(--font-mono);
            font-size: clamp(28px, 3.5vw, 38px);
            font-weight: 800;
            color: var(--accent-green);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }

        .stat-number .unit {
            font-size: 0.6em;
            font-weight: 500;
            color: var(--text-secondary);
            margin-left: 2px;
        }

        .stat-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            letter-spacing: 0.01em;
        }

        .stat-trend {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            margin-left: 6px;
            padding: 1px 6px;
            border-radius: 999px;
        }

        .stat-trend.up {
            color: var(--accent-green);
            background: rgba(0, 230, 118, 0.12);
        }

        .stat-trend.flat {
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.12);
        }

        /* ========== Match List Cards ========== */
        .match-list-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .match-item-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

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

        .match-item-thumb {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: var(--bg-secondary);
        }

        .match-item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .match-item-card:hover .match-item-thumb img {
            transform: scale(1.04);
        }

        .match-item-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(10, 14, 20, 0.85);
            backdrop-filter: blur(6px);
            border: 1px solid var(--border-color);
            color: var(--accent-green);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: var(--radius-chip);
        }

        .match-item-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .match-item-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .match-item-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 14px;
            flex: 1;
        }

        .match-item-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
        }

        .match-item-date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .match-item-tag {
            background: var(--accent-green-dim);
            color: var(--accent-green);
            border-radius: 6px;
            padding: 1px 8px;
            font-weight: 500;
            font-size: 12px;
        }

        .view-more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-green);
            border: 1px solid var(--border-hover);
            background: var(--accent-green-dim);
            padding: 8px 20px;
            border-radius: var(--radius-btn);
            transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
        }

        .view-more-link:hover {
            background: rgba(0, 230, 118, 0.22);
            border-color: rgba(0, 230, 118, 0.5);
            color: #5CF5A8;
            transform: translateY(-2px);
        }

        /* ========== Topic Cards ========== */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .topic-card {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 18px;
            transition: transform var(--transition-base), border-color var(--transition-base), background var(--transition-base);
            height: 100%;
        }

        .topic-card:hover {
            transform: translateY(-3px);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .topic-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            color: var(--accent-green);
            font-size: 18px;
            flex-shrink: 0;
        }

        .topic-card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }

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

        /* ========== Notice / Announcement ========== */
        .notice-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .notice-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }

        .notice-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .notice-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            border-radius: var(--radius-chip);
            padding: 2px 10px;
            white-space: nowrap;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .notice-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.5;
            flex: 1;
        }

        .notice-date {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
            font-family: var(--font-mono);
        }

        /* ========== FAQ ========== */
        .faq-wrapper {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }

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

        .faq-item.active {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            width: 100%;
            padding: 18px 22px;
            background: transparent;
            border: none;
            cursor: pointer;
            text-align: left;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color var(--transition-fast);
            font-family: var(--font-sans);
        }

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

        .faq-question .faq-icon {
            font-size: 14px;
            color: var(--accent-green);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
        }

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

        .faq-answer-inner {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== Subscribe / CTA ========== */
        .subscribe-panel {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .subscribe-panel::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.08), transparent 65%);
            pointer-events: none;
        }

        .subscribe-text {
            max-width: 420px;
        }

        .subscribe-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .subscribe-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex: 1;
            max-width: 420px;
            min-width: 260px;
        }

        .subscribe-input {
            flex: 1;
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 10px 18px;
            color: var(--text-primary);
            font-size: 14px;
            font-family: var(--font-sans);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        .subscribe-input:focus {
            outline: none;
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.1);
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-green);
            color: var(--bg-primary);
            font-size: 14px;
            font-weight: 700;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            font-family: var(--font-sans);
        }

        .btn-primary-custom:hover {
            background: #5CF5A8;
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(0, 230, 118, 0.25);
        }

        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-primary);
            font-size: 14px;
            font-weight: 600;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.3);
            cursor: pointer;
            white-space: nowrap;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
            font-family: var(--font-sans);
        }

        .btn-secondary-custom:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            transform: translateY(-2px);
        }

        .subscribe-success {
            display: none;
            font-size: 14px;
            color: var(--accent-green);
            font-weight: 600;
            margin-top: 8px;
        }

        .subscribe-success.show {
            display: block;
        }

        /* ========== Related Articles ========== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .related-article {
            display: flex;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 16px;
            transition: transform var(--transition-base), border-color var(--transition-base), background var(--transition-base);
            align-items: center;
        }

        .related-article:hover {
            transform: translateY(-3px);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .related-article-thumb {
            width: 90px;
            height: 60px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .related-article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .related-article-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 4px;
        }

        .related-article-date {
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-primary);
            border-top: 1px solid var(--border-color);
            padding: 40px 0 28px;
            margin-top: 0;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 520px;
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            list-style: none;
            margin: 0 0 20px;
            padding: 0;
        }

        .footer-links li a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .footer-links li a:hover {
            color: var(--accent-green);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            border-top: 1px solid var(--border-color);
            padding-top: 18px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom .domain {
            font-family: var(--font-mono);
            font-size: 12px;
        }

        /* ========== Responsive ========== */
        @media (max-width: 992px) {
            .nav-links {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .section {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .match-list-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-chip {
                display: none;
            }
            .category-hero {
                padding: 24px 0 22px;
            }
            .category-hero-inner {
                flex-direction: column;
                gap: 16px;
            }
            .hero-status-chip {
                align-self: flex-start;
            }
            .match-list-grid {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .subscribe-panel {
                padding: 24px 20px;
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form {
                width: 100%;
                max-width: 100%;
                flex-direction: column;
            }
            .btn-primary-custom,
            .btn-secondary-custom {
                width: 100%;
                justify-content: center;
            }
            .notice-item {
                flex-wrap: wrap;
                gap: 8px;
            }
            .notice-date {
                width: 100%;
                padding-left: 0;
            }
            .section {
                padding-top: 48px;
                padding-bottom: 48px;
            }
        }

        @media (max-width: 576px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 14px 16px;
            }
            .stat-number {
                font-size: 24px;
            }
            .section-title {
                font-size: 24px;
            }
            .category-hero h1 {
                font-size: 24px;
            }
            .match-item-thumb {
                aspect-ratio: 16/9;
            }
            .logo-brand {
                font-size: 17px;
            }
            .logo-mark {
                width: 30px;
                height: 30px;
                font-size: 14px;
                border-radius: 6px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #111826;
            --bg-card: #131C2A;
            --bg-card-hover: #182333;
            --accent-green: #00E676;
            --accent-green-dim: rgba(0, 230, 118, 0.14);
            --accent-orange: #FF8A3C;
            --accent-red: #F43F5E;
            --text-primary: #E8EDF5;
            --text-secondary: #A8B3C0;
            --text-muted: #657282;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(0, 230, 118, 0.35);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.28);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.48);
            --radius-card: 12px;
            --radius-btn: 999px;
            --radius-chip: 999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, system-ui, sans-serif;
            --font-mono: 'Roboto Mono', 'JetBrains Mono', 'Consolas', monospace;
            --section-padding-desktop: 80px;
            --section-padding-mobile: 52px;
            --nav-height: 68px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.24s ease;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-green);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #5CF5A8;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
        }

        .section {
            padding-top: var(--section-padding-desktop);
            padding-bottom: var(--section-padding-desktop);
            position: relative;
        }
        .section--tight {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .section--dark {
            background-color: var(--bg-primary);
        }
        .section--secondary {
            background-color: var(--bg-secondary);
        }
        .section--card-bg {
            background-color: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-green);
            margin-bottom: 16px;
            background: var(--accent-green-dim);
            padding: 6px 16px;
            border-radius: var(--radius-chip);
            border: 1px solid var(--border-hover);
        }
        .section-label::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.6);
        }

        .section-title {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .section-title .mono-highlight {
            font-family: var(--font-mono);
            color: var(--accent-green);
            font-weight: 800;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 36px;
        }

        .card-base {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
        }
        .card-base:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(10, 14, 20, 0.98);
            border-bottom-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 24px;
        }
        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.02em;
            transition: color var(--transition-fast);
        }
        .logo-brand:hover {
            color: var(--text-primary);
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            border-radius: 8px;
            font-size: 18px;
            color: var(--accent-green);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li {
            margin: 0;
        }
        .nav-links a {
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            padding: 6px 12px;
            border-radius: 6px;
            transition: color var(--transition-fast), background var(--transition-fast);
        }
        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-links a.active {
            color: var(--accent-green);
            background: var(--accent-green-dim);
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.1);
            border: 1px solid rgba(255, 138, 60, 0.3);
            padding: 6px 14px;
            border-radius: var(--radius-chip);
            white-space: nowrap;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }
        .nav-chip:hover {
            border-color: rgba(255, 138, 60, 0.6);
            background: rgba(255, 138, 60, 0.16);
            color: var(--accent-orange);
        }
        .dot-pulse {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-orange);
            animation: pulse-dot 1.6s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% {
                opacity: 1;
                box-shadow: 0 0 6px rgba(255, 138, 60, 0.7);
            }
            50% {
                opacity: 0.35;
                box-shadow: 0 0 2px rgba(255, 138, 60, 0.3);
            }
        }
        .hamburger-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-size: 24px;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            cursor: pointer;
            transition: border-color var(--transition-fast), background var(--transition-fast);
            align-items: center;
            justify-content: center;
        }
        .hamburger-btn:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.04);
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(10, 14, 20, 0.98);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 20px 24px;
            flex-direction: column;
            gap: 4px;
            z-index: 1049;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            color: var(--text-secondary);
            padding: 12px 16px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 500;
            transition: color var(--transition-fast), background var(--transition-fast);
        }
        .mobile-nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .mobile-nav a.active {
            color: var(--accent-green);
            background: var(--accent-green-dim);
        }
        .nav-chip-mobile {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.1);
            border: 1px solid rgba(255, 138, 60, 0.3);
            padding: 10px 16px;
            border-radius: var(--radius-chip);
            margin-top: 8px;
        }

        /* ========== Breadcrumb / Category Header ========== */
        .category-header {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
            padding: 40px 0 36px;
            position: relative;
        }
        .category-header::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 420px;
            height: 100%;
            background: radial-gradient(ellipse at top right, rgba(0, 230, 118, 0.05), transparent 70%);
            pointer-events: none;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            margin-bottom: 18px;
            color: var(--text-secondary);
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent-green);
        }
        .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb-nav .current-page {
            color: var(--accent-green);
            font-weight: 500;
        }
        .category-header-content {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }
        .category-header-text {
            max-width: 780px;
        }
        .category-h1 {
            font-size: clamp(28px, 3.5vw, 36px);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .category-h1 .h1-accent {
            color: var(--accent-green);
            font-family: var(--font-mono);
            font-weight: 800;
        }
        .category-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin: 0;
        }
        .category-status-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-green);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            padding: 8px 16px;
            border-radius: var(--radius-chip);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .category-status-chip .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: status-breathe 1.8s ease-in-out infinite;
        }
        @keyframes status-breathe {
            0%, 100% {
                opacity: 1;
                box-shadow: 0 0 8px rgba(0, 230, 118, 0.7);
            }
            50% {
                opacity: 0.4;
                box-shadow: 0 0 2px rgba(0, 230, 118, 0.3);
            }
        }

        /* ========== Player Card Grid ========== */
        .player-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .player-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
        }
        .player-card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-card-hover);
        }
        .player-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .player-card:hover .player-card-img img {
            transform: scale(1.03);
        }
        .player-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-chip);
            background: rgba(10, 14, 20, 0.85);
            border: 1px solid var(--border-color);
            color: var(--accent-green);
            backdrop-filter: blur(8px);
        }
        .player-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .player-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .player-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .player-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .player-card-meta .meta-date {
            font-family: var(--font-mono);
        }
        .more-link-wrapper {
            text-align: right;
            margin-top: 24px;
        }
        .more-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--accent-green);
            transition: color var(--transition-fast), gap var(--transition-fast);
        }
        .more-link:hover {
            color: #5CF5A8;
            gap: 10px;
        }

        /* ========== Stats Strip ========== */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .stat-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 20px;
            text-align: center;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }
        .stat-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }
        .stat-number {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-green);
            line-height: 1.2;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }
        .stat-number .stat-unit {
            font-size: 18px;
            font-weight: 500;
            color: var(--text-secondary);
        }
        .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== Topic Cards ========== */
        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
        }
        .topic-card-icon {
            font-size: 22px;
            color: var(--accent-green);
            margin-bottom: 10px;
            display: inline-flex;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            background: var(--accent-green-dim);
            border-radius: 8px;
            border: 1px solid var(--border-hover);
        }
        .topic-card-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .topic-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ========== Announcement List ========== */
        .announcement-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .announcement-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-color);
            flex-wrap: wrap;
        }
        .announcement-item:last-child {
            border-bottom: none;
        }
        .announcement-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.1);
            border: 1px solid rgba(255, 138, 60, 0.3);
            padding: 4px 12px;
            border-radius: var(--radius-chip);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .announcement-title {
            flex: 1;
            font-size: 15px;
            color: var(--text-primary);
            font-weight: 500;
            min-width: 200px;
        }
        .announcement-date {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        /* ========== FAQ Accordion ========== */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 16px;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            border-radius: 0;
            transition: background var(--transition-fast);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-card-hover);
            color: var(--accent-green);
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--border-hover);
        }
        .faq-accordion .accordion-button::after {
            filter: invert(1) brightness(1.2);
        }
        .faq-accordion .accordion-body {
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            padding: 4px 22px 20px;
            border-top: 1px solid var(--border-color);
        }
        .faq-accordion .accordion-button:not(.collapsed)::after {
            filter: invert(0.8) sepia(1) saturate(4) hue-rotate(80deg);
        }

        /* ========== Subscribe Form ========== */
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            flex-wrap: wrap;
        }
        .subscribe-form .form-control {
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            border-radius: var(--radius-btn);
            padding: 12px 20px;
            font-size: 15px;
            flex: 1;
            min-width: 200px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .subscribe-form .form-control::placeholder {
            color: var(--text-muted);
        }
        .subscribe-form .form-control:focus {
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.12);
            outline: none;
        }
        .btn-primary-custom {
            background: var(--accent-green);
            color: #0A0E14;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border: none;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: transform var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }
        .btn-primary-custom:hover {
            background: #5CF5A8;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(0, 230, 118, 0.3);
            color: #0A0E14;
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--text-primary);
            font-weight: 500;
            font-size: 15px;
            padding: 12px 24px;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
        }
        .btn-outline-custom:hover {
            border-color: var(--accent-green);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== Related Articles ========== */
        .article-list-item {
            display: flex;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid var(--border-color);
            align-items: center;
            transition: background var(--transition-fast);
        }
        .article-list-item:last-child {
            border-bottom: none;
        }
        .article-thumb {
            width: 100px;
            height: 60px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-card-hover);
        }
        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-info {
            flex: 1;
            min-width: 0;
        }
        .article-title-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            display: block;
            margin-bottom: 4px;
            line-height: 1.5;
            transition: color var(--transition-fast);
        }
        .article-title-link:hover {
            color: var(--accent-green);
        }
        .article-date {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 28px;
            margin-top: 0;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 520px;
            line-height: 1.75;
            margin-bottom: 24px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            list-style: none;
            margin: 0 0 24px;
            padding: 0;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-green);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom .domain {
            font-family: var(--font-mono);
        }

        /* ========== Responsive ========== */
        @media (max-width: 991.98px) {
            .nav-links {
                display: none;
            }
            .hamburger-btn {
                display: inline-flex;
            }
            .nav-chip {
                display: none;
            }
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .category-header-content {
                flex-direction: column;
                align-items: flex-start;
            }
            .section {
                padding-top: var(--section-padding-mobile);
                padding-bottom: var(--section-padding-mobile);
            }
        }

        @media (max-width: 767.98px) {
            .player-card-grid {
                grid-template-columns: 1fr;
            }
            .topic-card-grid {
                grid-template-columns: 1fr 1fr;
            }
            .section-title {
                font-size: 26px;
            }
            .category-h1 {
                font-size: 24px;
            }
            .announcement-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .announcement-title {
                min-width: auto;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form .form-control {
                min-width: auto;
                width: 100%;
            }
            .article-thumb {
                width: 80px;
                height: 48px;
            }
        }

        @media (max-width: 519.98px) {
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-number {
                font-size: 26px;
            }
            .topic-card-grid {
                grid-template-columns: 1fr;
            }
            .card-base {
                padding: 18px;
            }
            .breadcrumb-nav {
                font-size: 13px;
            }
            .footer-links {
                gap: 8px 16px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #111826;
            --bg-card: #131C2A;
            --bg-card-hover: #182333;
            --accent-green: #00E676;
            --accent-green-dim: rgba(0, 230, 118, 0.14);
            --accent-orange: #FF8A3C;
            --accent-red: #F43F5E;
            --text-primary: #E8EDF5;
            --text-secondary: #A8B3C0;
            --text-muted: #657282;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(0, 230, 118, 0.35);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.28);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.48);
            --radius-card: 12px;
            --radius-btn: 999px;
            --radius-chip: 999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, system-ui, sans-serif;
            --font-mono: 'Roboto Mono', 'JetBrains Mono', 'Consolas', monospace;
            --section-padding-desktop: 80px;
            --section-padding-mobile: 52px;
            --nav-height: 68px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.24s ease;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-green);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #5CF5A8;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
        }

        .section {
            padding-top: var(--section-padding-desktop);
            padding-bottom: var(--section-padding-desktop);
            position: relative;
        }

        .section--tight {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .section--dark {
            background-color: var(--bg-primary);
        }

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

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.08em;
            color: var(--accent-green);
            margin-bottom: 16px;
            background: var(--accent-green-dim);
            padding: 6px 16px;
            border-radius: var(--radius-chip);
            border: 1px solid var(--border-hover);
        }

        .section-label::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.6);
        }

        .section-title {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .section-title .mono-highlight {
            font-family: var(--font-mono);
            color: var(--accent-green);
            font-weight: 800;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 36px;
        }

        .card-base {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
        }

        .card-base:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(10, 14, 20, 0.98);
            border-bottom-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 24px;
        }

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }

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

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            font-size: 18px;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 22px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            padding: 6px 2px;
            transition: color var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }

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

        .nav-links a.active {
            color: var(--accent-green);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -4px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent-green);
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.12);
            border: 1px solid rgba(255, 138, 60, 0.35);
            padding: 7px 16px;
            border-radius: var(--radius-chip);
            white-space: nowrap;
            transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
        }

        .nav-chip:hover {
            background: rgba(255, 138, 60, 0.2);
            border-color: var(--accent-orange);
            color: var(--accent-orange);
        }

        .dot-pulse {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-orange);
            display: inline-block;
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 6px rgba(255, 138, 60, 0.7);
            }
            50% {
                opacity: 0.4;
                box-shadow: 0 0 2px rgba(255, 138, 60, 0.3);
            }
        }

        .hamburger-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            color: var(--text-primary);
            font-size: 22px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }

        .hamburger-btn:hover {
            border-color: var(--border-hover);
            background: var(--bg-card);
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            z-index: 1049;
            background: rgba(10, 14, 20, 0.98);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 24px 24px;
            flex-direction: column;
            gap: 4px;
            box-shadow: var(--shadow-lg);
        }

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

        .mobile-nav a {
            color: var(--text-secondary);
            font-size: 16px;
            font-weight: 500;
            padding: 12px 8px;
            border-bottom: 1px solid var(--border-color);
            transition: color var(--transition-fast);
        }

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

        .mobile-nav a.active {
            color: var(--accent-green);
        }

        .nav-chip-mobile {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.12);
            border: 1px solid rgba(255, 138, 60, 0.35);
            padding: 10px 16px;
            border-radius: var(--radius-chip);
            margin-top: 12px;
            align-self: flex-start;
        }

        /* ========== Breadcrumb ========== */
        .breadcrumb-section {
            padding-top: 24px;
            padding-bottom: 24px;
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-color);
        }

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

        .breadcrumb-nav a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb-nav a:hover {
            color: var(--accent-green);
        }

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

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

        /* ========== Page Hero ========== */
        .page-hero {
            padding-top: 52px;
            padding-bottom: 52px;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.07) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-hero-content {
            position: relative;
            z-index: 1;
        }

        .page-hero h1 {
            font-size: clamp(30px, 4vw, 44px);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: -0.02em;
        }

        .page-hero h1 .mono-highlight {
            font-family: var(--font-mono);
            color: var(--accent-green);
            font-weight: 800;
        }

        .page-hero-sub {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }

        .hero-status-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            padding: 7px 16px;
            border-radius: var(--radius-chip);
            white-space: nowrap;
            flex-shrink: 0;
        }

        /* ========== Stats Summary Bar ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .stat-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 22px 24px;
            text-align: center;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .stat-item:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
        }

        .stat-number {
            font-family: var(--font-mono);
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-green);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .stat-number.orange {
            color: var(--accent-orange);
        }

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

        /* ========== Team Cards Grid ========== */
        .team-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .team-card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-secondary);
            position: relative;
        }

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

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

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

        .team-card-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.12);
            border: 1px solid rgba(255, 138, 60, 0.3);
            padding: 3px 12px;
            border-radius: var(--radius-chip);
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .team-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

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

        .team-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }

        .team-card-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* ========== Featured Topics ========== */
        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px 22px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-base);
            height: 100%;
        }

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

        .topic-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent-green);
            flex-shrink: 0;
        }

        .topic-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

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

        /* ========== Announcement List ========== */
        .announce-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .announce-item {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 16px 20px;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }

        .announce-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .announce-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.12);
            border: 1px solid rgba(255, 138, 60, 0.3);
            padding: 4px 14px;
            border-radius: var(--radius-chip);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .announce-chip.green {
            color: var(--accent-green);
            background: var(--accent-green-dim);
            border-color: var(--border-hover);
        }

        .announce-text {
            font-size: 15px;
            color: var(--text-primary);
            flex: 1;
            line-height: 1.6;
        }

        .announce-date {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
            font-family: var(--font-mono);
        }

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

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

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

        .faq-question {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            cursor: pointer;
            user-select: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: var(--bg-card-hover);
        }

        .faq-number {
            font-family: var(--font-mono);
            font-size: 14px;
            font-weight: 700;
            color: var(--accent-green);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            width: 32px;
            height: 32px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .faq-toggle-icon {
            margin-left: auto;
            font-size: 18px;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 22px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

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

        .faq-answer-inner {
            padding-top: 2px;
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
        }

        /* ========== Subscribe CTA ========== */
        .subscribe-cta {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            flex-wrap: wrap;
        }

        .subscribe-cta h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

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

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            min-width: 280px;
            flex: 1;
            max-width: 480px;
        }

        .subscribe-input {
            flex: 1;
            min-width: 200px;
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 12px 20px;
            color: var(--text-primary);
            font-size: 15px;
            transition: border-color var(--transition-fast);
        }

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

        .subscribe-input:focus {
            outline: none;
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px var(--accent-green-dim);
        }

        .btn-primary-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-green);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

        .btn-primary-glow:hover {
            background: #5CF5A8;
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(0, 230, 118, 0.35);
        }

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

        /* ========== Related Articles ========== */
        .article-row {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 14px 20px;
            transition: border-color var(--transition-fast), transform var(--transition-base), box-shadow var(--transition-base);
        }

        .article-row:hover {
            border-color: var(--border-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .article-row-img {
            width: 72px;
            height: 52px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-secondary);
        }

        .article-row-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .article-row-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
            line-height: 1.5;
            display: block;
        }

        .article-row-title:hover {
            color: var(--accent-green);
        }

        .article-row-date {
            font-size: 13px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding-top: 48px;
            padding-bottom: 28px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 480px;
            margin-bottom: 24px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom .domain {
            font-family: var(--font-mono);
            font-size: 13px;
        }

        /* ========== Responsive ========== */
        @media (max-width: 991.98px) {
            .nav-links {
                display: none;
            }
            .hamburger-btn {
                display: flex;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .subscribe-cta {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 24px;
            }
            .subscribe-form {
                max-width: 100%;
                width: 100%;
            }
        }

        @media (max-width: 767.98px) {
            :root {
                --section-padding-desktop: 52px;
            }
            .page-hero {
                padding-top: 36px;
                padding-bottom: 36px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .stat-number {
                font-size: 26px;
            }
            .announce-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
                padding: 14px 16px;
            }
            .announce-date {
                font-size: 12px;
            }
            .subscribe-cta {
                padding: 22px 18px;
                gap: 18px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-input {
                min-width: 100%;
            }
            .article-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 14px 16px;
            }
            .article-row-img {
                width: 100%;
                height: 130px;
                aspect-ratio: 16/7;
            }
        }

        @media (max-width: 575.98px) {
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-item {
                padding: 16px 14px;
            }
            .stat-number {
                font-size: 22px;
            }
            .team-card-body {
                padding: 16px 16px 18px;
            }
            .topic-card {
                padding: 16px 16px;
                gap: 12px;
            }
            .topic-icon {
                width: 38px;
                height: 38px;
                font-size: 18px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
                gap: 10px;
            }
            .faq-answer {
                padding: 0 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .logo-brand {
                font-size: 17px;
            }
            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #111826;
            --bg-card: #131C2A;
            --bg-card-hover: #182333;
            --accent-green: #00E676;
            --accent-green-dim: rgba(0, 230, 118, 0.14);
            --accent-orange: #FF8A3C;
            --accent-red: #F43F5E;
            --text-primary: #E8EDF5;
            --text-secondary: #A8B3C0;
            --text-muted: #657282;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(0, 230, 118, 0.35);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.28);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.48);
            --radius-card: 12px;
            --radius-btn: 999px;
            --radius-chip: 999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, system-ui, sans-serif;
            --font-mono: 'Roboto Mono', 'JetBrains Mono', 'Consolas', monospace;
            --section-padding-desktop: 80px;
            --section-padding-mobile: 52px;
            --nav-height: 68px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.24s ease;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            overflow-x: hidden;
        }

        a {
            color: var(--accent-green);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

        a:hover {
            color: #5CF5A8;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }

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

        .container {
            max-width: 1200px;
        }

        .section {
            padding-top: var(--section-padding-desktop);
            padding-bottom: var(--section-padding-desktop);
            position: relative;
        }

        .section--tight {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .section--dark {
            background-color: var(--bg-primary);
        }

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

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-green);
            margin-bottom: 16px;
            background: var(--accent-green-dim);
            padding: 6px 16px;
            border-radius: var(--radius-chip);
            border: 1px solid var(--border-hover);
        }

        .section-label::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.6);
        }

        .section-title {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .section-title .mono-highlight {
            font-family: var(--font-mono);
            color: var(--accent-green);
            font-weight: 800;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 36px;
        }

        .card-base {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
        }

        .card-base:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(10, 14, 20, 0.98);
            border-bottom-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 24px;
        }

        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.02em;
            text-decoration: none;
        }

        .logo-brand:hover {
            color: var(--accent-green);
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            font-size: 16px;
            color: var(--accent-green);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: nowrap;
        }

        .nav-links li a {
            display: block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            border-radius: 6px;
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }

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

        .nav-links li a.active {
            color: var(--accent-green);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.1);
            border: 1px solid rgba(255, 138, 60, 0.35);
            border-radius: var(--radius-chip);
            text-decoration: none;
            white-space: nowrap;
            transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
        }

        .nav-chip:hover {
            color: #FF9F55;
            background: rgba(255, 138, 60, 0.16);
            border-color: rgba(255, 138, 60, 0.55);
        }

        .dot-pulse {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-orange);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; box-shadow: 0 0 6px rgba(255, 138, 60, 0.5); }
            50% { opacity: 0.4; box-shadow: 0 0 2px rgba(255, 138, 60, 0.2); }
        }

        .hamburger-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 20px;
            color: var(--text-primary);
            cursor: pointer;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }

        .hamburger-btn:hover {
            border-color: var(--border-hover);
            background: rgba(255, 255, 255, 0.04);
        }

        .mobile-nav {
            display: none;
            position: absolute;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(10, 14, 20, 0.98);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 20px;
            z-index: 1049;
            flex-direction: column;
            gap: 6px;
            box-shadow: var(--shadow-lg);
        }

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

        .mobile-nav a {
            padding: 12px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            text-decoration: none;
            border-radius: 8px;
            transition: background var(--transition-fast), color var(--transition-fast);
        }

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

        .mobile-nav a.active {
            color: var(--accent-green);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
        }

        .nav-chip-mobile {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 8px;
            padding: 10px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.1);
            border: 1px solid rgba(255, 138, 60, 0.35);
            border-radius: var(--radius-chip);
        }

        /* ========== Breadcrumb Hero ========== */
        .breadcrumb-hero {
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
            padding-top: 40px;
            padding-bottom: 40px;
            position: relative;
            overflow: hidden;
        }

        .breadcrumb-hero::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.06), transparent 70%);
            pointer-events: none;
            border-radius: 50%;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 14px;
        }

        .breadcrumb-nav a {
            color: var(--text-secondary);
            text-decoration: none;
        }

        .breadcrumb-nav a:hover {
            color: var(--accent-green);
        }

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

        .breadcrumb-nav .current {
            color: var(--accent-green);
            font-weight: 500;
        }

        .breadcrumb-h1 {
            font-size: clamp(28px, 4vw, 40px);
            font-weight: 800;
            color: var(--text-primary);
            line-height: 1.25;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .breadcrumb-h1 .accent {
            color: var(--accent-green);
            font-family: var(--font-mono);
        }

        .breadcrumb-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.75;
            margin: 0;
        }

        .status-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent-green);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            border-radius: var(--radius-chip);
            white-space: nowrap;
        }

        .status-chip .dot-pulse-green {
            display: inline-block;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: pulse-dot-green 1.8s ease-in-out infinite;
        }

        @keyframes pulse-dot-green {
            0%, 100% { opacity: 1; box-shadow: 0 0 6px rgba(0, 230, 118, 0.5); }
            50% { opacity: 0.4; box-shadow: 0 0 2px rgba(0, 230, 118, 0.2); }
        }

        /* ========== Card system for list ========== */
        .list-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .list-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

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

        .list-card-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: var(--radius-chip);
            margin-bottom: 10px;
            width: fit-content;
        }

        .badge-live {
            color: var(--accent-green);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
        }

        .badge-update {
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.1);
            border: 1px solid rgba(255, 138, 60, 0.35);
        }

        .list-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .list-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            flex: 1;
        }

        .list-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
        }

        .odds-mono {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 20px;
            color: var(--accent-orange);
        }

        .odds-mono.small {
            font-size: 15px;
        }

        .odds-change-up {
            color: var(--accent-green);
            font-size: 12px;
            font-weight: 600;
        }

        .odds-change-down {
            color: var(--accent-red);
            font-size: 12px;
            font-weight: 600;
        }

        /* ========== Stats bar ========== */
        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 8px;
        }

        .stat-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px 18px;
            text-align: center;
            transition: border-color var(--transition-base), transform var(--transition-base);
        }

        .stat-item:hover {
            border-color: var(--border-hover);
            transform: translateY(-2px);
        }

        .stat-number {
            font-family: var(--font-mono);
            font-size: 28px;
            font-weight: 800;
            color: var(--accent-green);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ========== Buttons ========== */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            color: var(--bg-primary);
            background: var(--accent-green);
            border: none;
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            text-decoration: none;
        }

        .btn-primary-custom:hover {
            background: #5CF5A8;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 230, 118, 0.25);
            color: var(--bg-primary);
        }

        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-btn);
            cursor: pointer;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
            text-decoration: none;
        }

        .btn-secondary-custom:hover {
            border-color: var(--accent-green);
            color: var(--text-primary);
            transform: translateY(-2px);
        }

        .btn-link-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--accent-green);
            text-decoration: none;
            transition: color var(--transition-fast), gap var(--transition-fast);
        }

        .btn-link-more:hover {
            color: #5CF5A8;
            gap: 10px;
        }

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

        .announce-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 14px 20px;
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }

        .announce-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .announce-chip {
            flex-shrink: 0;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-chip);
            white-space: nowrap;
        }

        .chip-announce {
            color: var(--accent-orange);
            background: rgba(255, 138, 60, 0.1);
            border: 1px solid rgba(255, 138, 60, 0.35);
        }

        .chip-update {
            color: var(--accent-green);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
        }

        .announce-title {
            flex: 1;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.5;
        }

        .announce-date {
            flex-shrink: 0;
            font-size: 13px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card) !important;
            margin-bottom: 10px;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 18px 20px;
            border: none;
            box-shadow: none;
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-card-hover);
            color: var(--accent-green);
            border-left: 3px solid var(--accent-green);
        }

        .faq-accordion .accordion-button::after {
            filter: brightness(0) invert(0.7);
        }

        .faq-accordion .accordion-body {
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.75;
            padding: 16px 20px 20px;
            border-top: 1px solid var(--border-color);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: 2px solid var(--accent-green);
            outline-offset: -2px;
        }

        /* ========== CTA / Form ========== */
        .cta-panel {
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            text-align: center;
            box-shadow: var(--shadow-md);
        }

        .cta-panel .section-title {
            font-size: clamp(24px, 3vw, 32px);
            margin-bottom: 12px;
        }

        .cta-panel .section-desc {
            margin-left: auto;
            margin-right: auto;
            margin-bottom: 28px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }

        .subscribe-input {
            flex: 1;
            padding: 12px 20px;
            font-size: 15px;
            color: var(--text-primary);
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

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

        .subscribe-input:focus {
            outline: none;
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.12);
        }

        .form-hint {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 10px;
        }

        /* ========== Topic cards ========== */
        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .topic-card-img {
            width: 100%;
            height: 140px;
            object-fit: cover;
        }

        .topic-card-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .topic-card-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .topic-card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
            flex: 1;
        }

        /* ========== Article list ========== */
        .article-mini {
            display: flex;
            gap: 14px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 14px;
            transition: border-color var(--transition-fast), background var(--transition-fast);
            align-items: center;
        }

        .article-mini:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

        .article-mini-img {
            width: 80px;
            height: 60px;
            object-fit: cover;
            border-radius: 6px;
            flex-shrink: 0;
        }

        .article-mini-body {
            flex: 1;
        }

        .article-mini-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-mini-date {
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding-top: 48px;
            padding-bottom: 28px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 540px;
            line-height: 1.7;
            margin-bottom: 22px;
        }

        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 20px;
            list-style: none;
            margin: 0 0 24px;
            padding: 0;
        }

        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            border-top: 1px solid var(--border-color);
            padding-top: 18px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom .domain {
            font-family: var(--font-mono);
            font-size: 12px;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1200px) {
            .nav-links li a {
                padding: 8px 10px;
                font-size: 13px;
            }
        }

        @media (max-width: 991px) {
            .nav-links {
                display: none;
            }

            .nav-chip {
                display: none;
            }

            .hamburger-btn {
                display: inline-flex;
            }

            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .section {
                padding-top: 64px;
                padding-bottom: 64px;
            }
        }

        @media (max-width: 767px) {
            .section {
                padding-top: var(--section-padding-mobile);
                padding-bottom: var(--section-padding-mobile);
            }

            .breadcrumb-hero {
                padding-top: 28px;
                padding-bottom: 28px;
            }

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

            .stat-number {
                font-size: 22px;
            }

            .stat-label {
                font-size: 12px;
            }

            .cta-panel {
                padding: 28px 20px;
            }

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

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

            .announce-item {
                flex-wrap: wrap;
            }

            .announce-title {
                width: 100%;
                order: 2;
            }

            .announce-chip {
                order: 1;
            }

            .announce-date {
                order: 3;
            }

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

        @media (max-width: 575px) {
            .stats-bar {
                grid-template-columns: 1fr;
            }

            .list-card-img {
                height: 140px;
            }

            .btn-primary-custom,
            .btn-secondary-custom {
                width: 100%;
                justify-content: center;
            }

            .article-mini {
                flex-direction: column;
                align-items: flex-start;
            }

            .article-mini-img {
                width: 100%;
                height: 120px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #111826;
            --bg-card: #131C2A;
            --bg-card-hover: #182333;
            --accent-green: #00E676;
            --accent-green-dim: rgba(0, 230, 118, 0.14);
            --accent-orange: #FF8A3C;
            --accent-red: #F43F5E;
            --text-primary: #E8EDF5;
            --text-secondary: #A8B3C0;
            --text-muted: #657282;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(0, 230, 118, 0.35);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.28);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.48);
            --radius-card: 12px;
            --radius-btn: 999px;
            --radius-chip: 999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, system-ui, sans-serif;
            --font-mono: 'Roboto Mono', 'JetBrains Mono', 'Consolas', monospace;
            --section-padding-desktop: 80px;
            --section-padding-mobile: 52px;
            --nav-height: 68px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.24s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            overflow-x: hidden;
        }
        a {
            color: var(--accent-green);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #5CF5A8;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }
        .section {
            padding-top: var(--section-padding-desktop);
            padding-bottom: var(--section-padding-desktop);
            position: relative;
        }
        .section--tight {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .section--dark {
            background-color: var(--bg-primary);
        }
        .section--secondary {
            background-color: var(--bg-secondary);
        }
        .section--card-bg {
            background-color: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-green);
            margin-bottom: 16px;
            background: var(--accent-green-dim);
            padding: 6px 16px;
            border-radius: var(--radius-chip);
            border: 1px solid var(--border-hover);
        }
        .section-label::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.6);
        }
        .section-title {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .section-title .mono-highlight {
            font-family: var(--font-mono);
            color: var(--accent-green);
            font-weight: 800;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 36px;
        }
        .card-base {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
        }
        .card-base:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }
        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(10, 14, 20, 0.98);
            border-bottom-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 24px;
        }
        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }
        .logo-brand:hover {
            color: var(--text-primary);
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--accent-green-dim);
            color: var(--accent-green);
            font-size: 18px;
            border: 1px solid var(--border-hover);
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links li a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            white-space: nowrap;
            transition: color var(--transition-fast), background var(--transition-fast);
        }
        .nav-links li a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-links li a.active {
            color: var(--accent-green);
            background: var(--accent-green-dim);
            font-weight: 600;
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            background: transparent;
            border: 1px solid var(--border-hover);
            border-radius: var(--radius-chip);
            white-space: nowrap;
            transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
            flex-shrink: 0;
        }
        .nav-chip:hover {
            background: var(--accent-green-dim);
            border-color: var(--accent-green);
            color: var(--accent-green);
        }
        .dot-pulse {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            animation: pulse-dot 1.6s ease-in-out infinite;
            flex-shrink: 0;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; box-shadow: 0 0 4px rgba(0, 230, 118, 0.5); }
            50% { opacity: 0.35; box-shadow: 0 0 0 rgba(0, 230, 118, 0); }
        }
        .hamburger-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            color: var(--text-primary);
            font-size: 24px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: border-color var(--transition-fast), background var(--transition-fast);
            flex-shrink: 0;
        }
        .hamburger-btn:hover {
            border-color: var(--border-hover);
            background: var(--accent-green-dim);
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(10, 14, 20, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            padding: 12px 16px 20px;
            z-index: 1049;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav a {
            display: block;
            padding: 12px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 10px;
            transition: background var(--transition-fast), color var(--transition-fast);
        }
        .mobile-nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .mobile-nav a.active {
            color: var(--accent-green);
            background: var(--accent-green-dim);
            font-weight: 600;
        }
        .nav-chip-mobile {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            border: 1px solid var(--border-hover);
            border-radius: var(--radius-chip);
            margin-top: 8px;
            white-space: nowrap;
        }
        @media (max-width: 991px) {
            .nav-links { display: none; }
            .nav-chip { display: none; }
            .hamburger-btn { display: flex; }
            .mobile-nav { display: flex; }
        }
        /* Breadcrumb / H1 region */
        .page-hero {
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-color);
            padding: 40px 0 36px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 480px;
            height: 320px;
            background: radial-gradient(ellipse, rgba(0, 230, 118, 0.08) 0%, transparent 65%);
            pointer-events: none;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-custom a:hover {
            color: var(--accent-green);
        }
        .breadcrumb-custom .sep {
            color: var(--text-muted);
            font-size: 11px;
        }
        .breadcrumb-custom .current {
            color: var(--accent-green);
            font-weight: 500;
        }
        .page-hero .h1-title {
            font-size: clamp(30px, 4.5vw, 44px);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
            color: var(--text-primary);
        }
        .page-hero .h1-title .highlight {
            color: var(--accent-green);
            font-family: var(--font-mono);
            font-weight: 800;
        }
        .page-hero .hero-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }
        .hero-status-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            border-radius: var(--radius-chip);
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
            white-space: nowrap;
        }
        /* Stat bar */
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px 18px;
            height: 100%;
            text-align: center;
            transition: transform var(--transition-base), border-color var(--transition-base);
        }
        .stat-card:hover {
            transform: translateY(-3px);
            border-color: var(--border-hover);
        }
        .stat-value {
            font-family: var(--font-mono);
            font-size: clamp(26px, 3vw, 34px);
            font-weight: 800;
            color: var(--accent-green);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-value.orange { color: var(--accent-orange); }
        .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        /* Version cards */
        .version-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .version-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
        }
        .version-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-secondary);
        }
        .version-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .version-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .version-card .version-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(10, 14, 20, 0.86);
            backdrop-filter: blur(8px);
            padding: 5px 12px;
            border-radius: 8px;
            font-family: var(--font-mono);
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-green);
            border: 1px solid var(--border-hover);
        }
        .version-card .card-body-inner {
            padding: 18px 20px 20px;
        }
        .version-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .version-card .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .version-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .version-card .card-meta .date {
            font-family: var(--font-mono);
        }
        .version-card .card-meta .type-tag {
            padding: 3px 10px;
            border-radius: 20px;
            background: rgba(255, 138, 60, 0.12);
            color: var(--accent-orange);
            font-weight: 500;
            font-size: 11px;
            border: 1px solid rgba(255, 138, 60, 0.25);
        }
        /* Topic cards */
        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 20px;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
        }
        .topic-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-md);
        }
        .topic-card .topic-icon {
            width: 42px;
            height: 42px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            background: var(--accent-green-dim);
            color: var(--accent-green);
            border: 1px solid var(--border-hover);
            margin-bottom: 14px;
            flex-shrink: 0;
        }
        .topic-card .topic-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        /* Announcement list */
        .announce-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .announce-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            transition: border-color var(--transition-fast), background var(--transition-fast);
        }
        .announce-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }
        .announce-chip {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border-radius: var(--radius-chip);
            font-size: 12px;
            font-weight: 600;
            border: 1px solid var(--border-hover);
            background: var(--accent-green-dim);
            color: var(--accent-green);
            white-space: nowrap;
        }
        .announce-chip.orange {
            background: rgba(255, 138, 60, 0.12);
            border-color: rgba(255, 138, 60, 0.3);
            color: var(--accent-orange);
        }
        .announce-item .announce-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.5;
            flex: 1;
        }
        .announce-item .announce-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
        }
        /* FAQ accordion */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .faq-accordion .accordion-item:hover {
            border-color: var(--border-hover);
        }
        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 18px 20px;
            border: none;
            box-shadow: none;
            border-radius: var(--radius-card) !important;
            transition: color var(--transition-fast), background var(--transition-fast);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-card-hover);
            color: var(--accent-green);
            box-shadow: none;
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--border-hover);
        }
        .faq-accordion .accordion-button::after {
            filter: invert(0.8) sepia(0.4) saturate(300%) hue-rotate(85deg);
        }
        .faq-accordion .accordion-body {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            padding: 4px 20px 20px;
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
        }
        .faq-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: var(--accent-green-dim);
            color: var(--accent-green);
            font-family: var(--font-mono);
            font-size: 13px;
            font-weight: 700;
            margin-right: 12px;
            flex-shrink: 0;
        }
        /* CTA */
        .cta-panel {
            background: var(--bg-secondary);
            border: 1px solid var(--border-hover);
            border-radius: 16px;
            padding: 42px 36px;
            position: relative;
            overflow: hidden;
        }
        .cta-panel::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 360px;
            height: 260px;
            background: radial-gradient(ellipse, rgba(0, 230, 118, 0.1) 0%, transparent 65%);
            pointer-events: none;
        }
        .cta-title {
            font-size: clamp(22px, 3vw, 28px);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-sub {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }
        .subscribe-form .form-control {
            flex: 1;
            min-width: 220px;
            background: var(--bg-primary);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-btn);
            padding: 12px 20px;
            color: var(--text-primary);
            font-size: 14px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .subscribe-form .form-control:focus {
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.12);
            outline: none;
        }
        .subscribe-form .form-control::placeholder {
            color: var(--text-muted);
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-green);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 14px;
            font-weight: 700;
            cursor: pointer;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            white-space: nowrap;
        }
        .btn-primary-custom:hover {
            background: #5CF5A8;
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(0, 230, 118, 0.25);
            color: var(--bg-primary);
        }
        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-btn);
            padding: 12px 24px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
            white-space: nowrap;
        }
        .btn-outline-custom:hover {
            border-color: var(--accent-green);
            color: var(--accent-green);
            transform: translateY(-2px);
        }
        /* Article list */
        .article-item {
            display: flex;
            gap: 16px;
            align-items: center;
            padding: 14px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            transition: border-color var(--transition-fast), transform var(--transition-fast);
            margin-bottom: 10px;
        }
        .article-item:hover {
            border-color: var(--border-hover);
            transform: translateX(4px);
        }
        .article-item .thumb {
            width: 80px;
            height: 56px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-secondary);
        }
        .article-item .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-item .article-info {
            flex: 1;
            min-width: 0;
        }
        .article-item .article-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 2px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .article-item .article-date {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
        }
        /* Trend indicators */
        .trend-up {
            color: var(--accent-green);
            font-weight: 600;
        }
        .trend-down {
            color: var(--accent-red);
            font-weight: 600;
        }
        .trend-flat {
            color: var(--accent-orange);
            font-weight: 600;
        }
        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 28px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 520px;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 8px 24px;
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
        }
        .footer-links li a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .footer-links li a:hover {
            color: var(--accent-green);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px 16px;
            padding-top: 18px;
            border-top: 1px solid var(--border-color);
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom .domain {
            font-family: var(--font-mono);
            font-size: 12px;
            color: var(--text-muted);
        }
        /* Responsive */
        @media (max-width: 767px) {
            :root {
                --section-padding-desktop: 52px;
                --section-padding-mobile: 40px;
            }
            .page-hero {
                padding: 28px 0 24px;
            }
            .page-hero .h1-title {
                font-size: 28px;
            }
            .cta-panel {
                padding: 28px 20px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form .form-control {
                min-width: 100%;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                justify-content: center;
                width: 100%;
            }
            .announce-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .announce-item .announce-date {
                white-space: normal;
            }
            .article-item .thumb {
                width: 64px;
                height: 46px;
            }
            .stat-card {
                padding: 16px 12px;
            }
            .stat-value {
                font-size: 24px;
            }
        }
        @media (max-width: 575px) {
            .footer-links {
                gap: 6px 14px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 4px;
            }
            .breadcrumb-custom {
                font-size: 12px;
            }
            .version-card .card-title {
                font-size: 15px;
            }
        }
        @media (min-width: 768px) and (max-width: 991px) {
            .nav-links { display: none; }
            .nav-chip { display: none; }
            .hamburger-btn { display: flex; }
            .mobile-nav { display: flex; }
            :root {
                --section-padding-desktop: 64px;
            }
        }
        @media (min-width: 992px) and (max-width: 1199px) {
            .nav-links li a {
                padding: 8px 10px;
                font-size: 13px;
            }
        }

/* roulang page: category6 */
:root {
            --bg-primary: #0A0E14;
            --bg-secondary: #111826;
            --bg-card: #131C2A;
            --bg-card-hover: #182333;
            --accent-green: #00E676;
            --accent-green-dim: rgba(0, 230, 118, 0.14);
            --accent-orange: #FF8A3C;
            --accent-red: #F43F5E;
            --text-primary: #E8EDF5;
            --text-secondary: #A8B3C0;
            --text-muted: #657282;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(0, 230, 118, 0.35);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.28);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.48);
            --radius-card: 12px;
            --radius-btn: 999px;
            --radius-chip: 999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', -apple-system, system-ui, sans-serif;
            --font-mono: 'Roboto Mono', 'JetBrains Mono', 'Consolas', monospace;
            --section-padding-desktop: 80px;
            --section-padding-mobile: 52px;
            --nav-height: 68px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.24s ease;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            overflow-x: hidden;
        }
        a {
            color: var(--accent-green);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: #5CF5A8;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-green);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
        }
        .section {
            padding-top: var(--section-padding-desktop);
            padding-bottom: var(--section-padding-desktop);
            position: relative;
        }
        .section--tight {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .section--dark {
            background-color: var(--bg-primary);
        }
        .section--secondary {
            background-color: var(--bg-secondary);
        }
        .section--card-bg {
            background-color: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent-green);
            margin-bottom: 16px;
            background: var(--accent-green-dim);
            padding: 6px 16px;
            border-radius: var(--radius-chip);
            border: 1px solid var(--border-hover);
        }
        .section-label::before {
            content: '';
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.6);
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.4); }
        }
        .section-title {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .section-title .mono-highlight {
            font-family: var(--font-mono);
            color: var(--accent-green);
            font-weight: 800;
        }
        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 36px;
        }
        .card-base {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 24px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
        }
        .card-base:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }
        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(10, 14, 20, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            display: flex;
            align-items: center;
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(10, 14, 20, 0.98);
            border-bottom-color: var(--border-hover);
            box-shadow: var(--shadow-sm);
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 24px;
        }
        .logo-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }
        .logo-brand:hover {
            color: var(--text-primary);
        }
        .logo-mark {
            font-size: 22px;
            color: var(--accent-green);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .nav-links a {
            display: block;
            padding: 8px 14px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }
        .nav-links a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-links a.active {
            color: var(--accent-green);
            background: var(--accent-green-dim);
        }
        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--radius-chip);
            border: 1px solid var(--border-hover);
            background: var(--accent-green-dim);
            color: var(--accent-green);
            font-size: 13px;
            font-weight: 600;
            white-space: nowrap;
            transition: background var(--transition-fast), border-color var(--transition-fast);
        }
        .nav-chip:hover {
            background: rgba(0, 230, 118, 0.24);
            border-color: var(--accent-green);
            color: var(--accent-green);
        }
        .dot-pulse {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent-green);
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.7);
            animation: pulse-dot 1.8s ease-in-out infinite;
            display: inline-block;
        }
        .hamburger-btn {
            display: none;
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 24px;
            padding: 4px 12px;
            line-height: 1;
            transition: border-color var(--transition-fast), color var(--transition-fast);
        }
        .hamburger-btn:hover {
            border-color: var(--border-hover);
            color: var(--accent-green);
        }
        .mobile-nav {
            display: none;
            position: absolute;
            top: var(--nav-height);
            left: 0;
            right: 0;
            background: rgba(10, 14, 20, 0.98);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
            flex-direction: column;
            gap: 4px;
            z-index: 1049;
        }
        .mobile-nav a {
            display: block;
            padding: 12px 24px;
            color: var(--text-secondary);
            font-size: 15px;
            border-radius: 0;
            transition: background var(--transition-fast), color var(--transition-fast);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--accent-green);
            background: var(--accent-green-dim);
        }
        .nav-chip-mobile {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin: 8px 24px;
            padding: 10px 18px;
            border-radius: var(--radius-chip);
            border: 1px solid var(--border-hover);
            background: var(--accent-green-dim);
            color: var(--accent-green);
            font-size: 13px;
            font-weight: 600;
        }
        /* Breadcrumb */
        .breadcrumb-section {
            padding: 32px 0 24px;
            background: var(--bg-secondary);
            border-bottom: 1px solid var(--border-color);
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 8px;
        }
        .breadcrumb-nav a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent-green);
        }
        .breadcrumb-nav .separator {
            color: var(--text-muted);
            font-size: 12px;
        }
        .breadcrumb-nav .current {
            color: var(--text-primary);
            font-weight: 500;
        }
        /* Category Hero (non-fullscreen) */
        .category-hero {
            padding: 48px 0 40px;
            background-image: linear-gradient(rgba(10, 14, 20, 0.88), rgba(10, 14, 20, 0.92)), url('/assets/images/7e6733c7d9b10ba5.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border-color);
            position: relative;
        }
        .category-hero h1 {
            font-size: clamp(28px, 3.5vw, 36px);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .category-hero h1 .highlight {
            color: var(--accent-green);
        }
        .category-hero .hero-sub {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 0;
        }
        .status-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: var(--radius-chip);
            background: var(--accent-green-dim);
            border: 1px solid var(--border-hover);
            color: var(--accent-green);
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
        }
        .status-chip .dot-pulse {
            width: 6px;
            height: 6px;
        }
        /* Schedule Cards */
        .schedule-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .schedule-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }
        .schedule-card .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: var(--bg-secondary);
        }
        .schedule-card .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }
        .schedule-card .card-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: var(--radius-chip);
            font-size: 12px;
            font-weight: 600;
            background: var(--accent-green-dim);
            color: var(--accent-green);
            margin-bottom: 10px;
            align-self: flex-start;
            border: 1px solid var(--border-hover);
        }
        .schedule-card .card-badge.orange {
            background: rgba(255, 138, 60, 0.14);
            color: var(--accent-orange);
            border-color: rgba(255, 138, 60, 0.35);
        }
        .schedule-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .schedule-card .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            flex-grow: 1;
        }
        .schedule-card .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .schedule-card .card-meta i {
            font-size: 14px;
            color: var(--accent-green);
        }
        .btn-outline-green {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: var(--text-primary);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-size: 15px;
            font-weight: 500;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
        }
        .btn-outline-green:hover {
            border-color: var(--accent-green);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-green {
            background: var(--accent-green);
            color: var(--bg-primary);
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 700;
            transition: background var(--transition-fast), transform var(--transition-fast);
        }
        .btn-green:hover {
            background: #5CF5A8;
            color: var(--bg-primary);
            transform: translateY(-2px);
        }
        /* Stats */
        .stat-item {
            text-align: center;
            padding: 20px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }
        .stat-item:hover {
            border-color: var(--border-hover);
            transform: translateY(-2px);
        }
        .stat-number {
            font-family: var(--font-mono);
            font-size: clamp(28px, 3vw, 36px);
            font-weight: 800;
            color: var(--accent-green);
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-number.orange {
            color: var(--accent-orange);
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }
        /* Topic Cards */
        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-hover);
        }
        .topic-card .topic-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: var(--bg-secondary);
        }
        .topic-card .topic-body {
            padding: 16px 20px;
        }
        .topic-card .topic-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }
        /* Announcement */
        .announcement-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .announcement-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }
        .announcement-item:hover {
            border-color: var(--border-hover);
            transform: translateX(4px);
        }
        .announcement-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: var(--radius-chip);
            font-size: 12px;
            font-weight: 600;
            background: rgba(255, 138, 60, 0.14);
            color: var(--accent-orange);
            border: 1px solid rgba(255, 138, 60, 0.35);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .announcement-chip.green {
            background: var(--accent-green-dim);
            color: var(--accent-green);
            border-color: var(--border-hover);
        }
        .announcement-text {
            flex-grow: 1;
            font-size: 15px;
            color: var(--text-primary);
            line-height: 1.5;
        }
        .announcement-date {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
            flex-shrink: 0;
            font-family: var(--font-mono);
        }
        /* FAQ */
        .faq-accordion .accordion-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            background: var(--bg-card);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 18px 22px;
            border: none;
            box-shadow: none;
            border-radius: var(--radius-card);
            transition: background var(--transition-fast), color var(--transition-fast);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-card-hover);
            color: var(--accent-green);
            border-bottom: 1px solid var(--border-color);
            border-radius: var(--radius-card) var(--radius-card) 0 0 !important;
        }
        .faq-accordion .accordion-button:focus {
            outline: none;
            box-shadow: 0 0 0 2px var(--accent-green);
            border-radius: var(--radius-card);
        }
        .faq-accordion .accordion-button::after {
            filter: brightness(0) invert(1);
        }
        .faq-accordion .accordion-body {
            background: var(--bg-card);
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            padding: 18px 22px;
            border-radius: 0 0 var(--radius-card) var(--radius-card);
        }
        /* CTA */
        .cta-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            padding: 56px 0;
        }
        .cta-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px;
            text-align: center;
            max-width: 760px;
            margin: 0 auto;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-box .cta-title {
            font-size: clamp(22px, 3vw, 28px);
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .cta-box .cta-desc {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 420px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 220px;
            padding: 12px 20px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-color);
            background: var(--bg-secondary);
            color: var(--text-primary);
            font-size: 14px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-muted);
        }
        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: var(--accent-green);
            box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.1);
        }
        /* Article List */
        .article-list-item {
            display: flex;
            gap: 16px;
            align-items: center;
            padding: 14px 16px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }
        .article-list-item:hover {
            border-color: var(--border-hover);
            transform: translateX(4px);
        }
        .article-list-item .article-thumb {
            width: 72px;
            height: 48px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-secondary);
        }
        .article-list-item .article-info {
            flex-grow: 1;
            min-width: 0;
        }
        .article-list-item .article-title {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.4;
            margin-bottom: 2px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .article-list-item .article-date {
            font-size: 12px;
            color: var(--text-muted);
            font-family: var(--font-mono);
        }
        /* Footer */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 48px 0 32px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .footer-brand .logo-mark {
            color: var(--accent-green);
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 520px;
            margin-bottom: 24px;
        }
        .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            list-style: none;
            margin: 0 0 24px;
            padding: 0;
        }
        .footer-links li a {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast), background var(--transition-fast);
        }
        .footer-links li a:hover {
            color: var(--accent-green);
            background: var(--accent-green-dim);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom .domain {
            font-family: var(--font-mono);
            font-size: 12px;
        }
        /* Responsive */
        @media (max-width: 991px) {
            .nav-links {
                display: none;
            }
            .hamburger-btn {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .mobile-nav.show {
                display: flex;
            }
            .section {
                padding-top: var(--section-padding-mobile);
                padding-bottom: var(--section-padding-mobile);
            }
            .category-hero {
                padding: 36px 0 32px;
            }
        }
        @media (max-width: 767px) {
            .nav-chip {
                display: none;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .schedule-card .card-body {
                padding: 16px;
            }
            .stat-number {
                font-size: 24px;
            }
            .cta-box {
                padding: 24px 18px;
            }
            .announcement-item {
                flex-wrap: wrap;
                gap: 10px;
            }
            .announcement-date {
                width: 100%;
                text-align: right;
            }
        }
        @media (max-width: 575px) {
            .logo-brand {
                font-size: 17px;
            }
            .hamburger-btn {
                font-size: 20px;
                padding: 4px 10px;
            }
            .section-title {
                font-size: 24px;
            }
            .breadcrumb-nav {
                font-size: 12px;
                flex-wrap: wrap;
            }
            .subscribe-form input[type="email"] {
                min-width: 100%;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}