/* roulang page: index */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0E1A2B;
            --bg-card: rgba(20, 40, 70, 0.35);
            --bg-card-hover: rgba(30, 55, 90, 0.5);
            --primary: #1B6EF3;
            --primary-light: #5EACFF;
            --accent: #2DD4FE;
            --accent-purple: #7C3AED;
            --text-primary: #E6F0FF;
            --text-secondary: #9FB3CC;
            --text-muted: #6B819E;
            --border-light: rgba(255, 255, 255, 0.08);
            --border-medium: rgba(255, 255, 255, 0.16);
            --border-glow: rgba(43, 212, 254, 0.4);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-glow: 0 0 18px rgba(43, 212, 254, 0.35);
            --sidebar-width: 250px;
            --spacing-section: 72px;
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Source Han Sans', 'Microsoft YaHei', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.3s ease, background 0.3s ease, border-color 0.3s ease;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--text-primary);
        }

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

        /* ---------- Layout ---------- */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .main-wrapper {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
        }

        /* ---------- Sidebar ---------- */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: #0C1424;
            border-right: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            flex-direction: column;
            z-index: 100;
            overflow-y: auto;
            transition: transform 0.3s ease;
        }

        .sidebar-brand {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .sidebar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-brand .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
        }

        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 0 10px 8px;
        }

        .sidebar-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            font-size: 14px;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: all 0.25s ease;
        }

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

        .sidebar-nav a.active {
            background: rgba(27, 110, 243, 0.15);
            color: var(--text-primary);
            font-weight: 600;
        }

        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(43, 212, 254, 0.6);
        }

        .sidebar-nav a .nav-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
        }

        .sidebar-footer {
            padding: 16px 20px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .sidebar-footer a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 6px 0;
        }

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

        /* ---------- Mobile Nav ---------- */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: #0C1424;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 99;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }

        .mobileNav-brand {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobileNav-brand .brand-icon {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            font-weight: 700;
        }

        .hamburger {
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 24px;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
        }

        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 98;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .drawer-overlay.open {
            opacity: 1;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            width: 280px;
            height: 100vh;
            background: #0C1424;
            z-index: 100;
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            padding: 20px 16px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

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

        .mobile-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-drawer .drawer-brand {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
        }

        .drawer-close {
            background: none;
            border: none;
            color: var(--text-secondary);
            font-size: 22px;
            cursor: pointer;
            padding: 4px;
        }

        .mobile-drawer ul {
            list-style: none;
            padding: 0;
            margin: 0;
            flex: 1;
        }

        .mobile-drawer li {
            margin-bottom: 4px;
        }

        .mobile-drawer a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            font-size: 15px;
            color: var(--text-secondary);
            border-radius: 8px;
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            background: rgba(27, 110, 243, 0.15);
            color: var(--text-primary);
        }

        /* ---------- Main Content ---------- */
        main {
            padding-bottom: 0;
        }

        .section {
            padding: var(--spacing-section) 40px;
            position: relative;
        }

        .section-alt {
            background: rgba(255, 255, 255, 0.02);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

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

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.3px;
            margin-bottom: 10px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 40px;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
        }

        .section-header p {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.7;
            margin-top: 12px;
        }

        /* ---------- Hero ---------- */
        .hero {
            min-height: 76vh;
            display: flex;
            align-items: center;
            padding: 60px 40px;
            position: relative;
            overflow: hidden;
            background: url('/assets/images/a9612e65a6d614cd.webp') center/cover no-repeat;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.75) 0%, rgba(14, 26, 43, 0.9) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--accent);
            background: rgba(43, 212, 254, 0.1);
            border: 1px solid rgba(43, 212, 254, 0.25);
            border-radius: 999px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .hero h1 {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }

        .hero h1 .highlight {
            background: linear-gradient(90deg, var(--accent), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 24px;
        }

        .hero-countdown {
            display: flex;
            gap: 12px;
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .countdown-item {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            padding: 10px 16px;
            text-align: center;
            min-width: 64px;
            backdrop-filter: blur(8px);
        }

        .countdown-item .count-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--accent);
            display: block;
            line-height: 1.3;
        }

        .countdown-item .count-label {
            font-size: 12px;
            color: var(--text-muted);
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            letter-spacing: 0.3px;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 28px rgba(43, 212, 254, 0.5);
            color: #fff;
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-medium);
            color: var(--text-primary);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.16);
            transform: translateY(-2px);
            color: var(--text-primary);
        }

        /* ---------- Entry Matrix ---------- */
        .entry-matrix .grid-x {
            gap: 0;
        }

        .entry-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: block;
            height: 100%;
            text-decoration: none;
        }

        .entry-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(43, 212, 254, 0.3);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
            text-decoration: none;
        }

        .entry-card .entry-icon {
            width: 46px;
            height: 46px;
            background: rgba(27, 110, 243, 0.15);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 14px;
        }

        .entry-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .entry-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
            flex: 1;
        }

        .entry-card .entry-link {
            font-size: 13px;
            color: var(--accent);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

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

        /* ---------- Service Matrix ---------- */
        .service-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .service-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(43, 212, 254, 0.25);
            transform: translateY(-2px);
        }

        .service-card .service-tag {
            font-size: 11px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 10px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

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

        /* ---------- Stats ---------- */
        .stats-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: space-between;
        }

        .stat-item {
            flex: 1;
            min-width: 160px;
            background: rgba(20, 40, 70, 0.3);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 20px 18px;
            text-align: left;
        }

        .stat-item .stat-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

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

        /* ---------- Process ---------- */
        .process-steps {
            display: flex;
            gap: 18px;
            flex-wrap: wrap;
        }

        .process-step {
            flex: 1;
            min-width: 200px;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 18px 16px;
            box-shadow: var(--shadow-card);
        }

        .process-step .step-num {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            color: #fff;
            flex-shrink: 0;
        }

        .process-step h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

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

        /* ---------- Case Cards ---------- */
        .case-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .case-card:hover {
            border-color: rgba(43, 212, 254, 0.3);
            transform: translateY(-3px);
        }

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

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

        .case-card .case-tag {
            font-size: 11px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.8px;
            margin-bottom: 6px;
        }

        .case-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .case-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }

        /* ---------- News List ---------- */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .news-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 16px 18px;
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
            cursor: pointer;
        }

        .news-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(43, 212, 254, 0.25);
        }

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

        .news-item .news-meta {
            flex: 1;
        }

        .news-item .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-bottom: 4px;
        }

        .news-item h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }

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

        /* ---------- Version Section ---------- */
        .version-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px 18px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            height: 100%;
        }

        .version-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(124, 58, 237, 0.3);
        }

        .version-card .version-badge {
            display: inline-block;
            padding: 4px 10px;
            font-size: 11px;
            font-weight: 600;
            color: #fff;
            background: var(--accent-purple);
            border-radius: 4px;
            margin-bottom: 10px;
        }

        .version-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

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

        /* ---------- Brand Intro ---------- */
        .brand-intro {
            background: linear-gradient(180deg, rgba(27, 110, 243, 0.08) 0%, rgba(14, 26, 43, 0.6) 100%);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .brand-intro .brand-text {
            font-size: 16px;
            color: var(--text-primary);
            line-height: 1.9;
            max-width: 720px;
        }

        .brand-intro .brand-text strong {
            color: var(--accent);
            font-weight: 700;
        }

        /* ---------- Partner ---------- */
        .partner-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .partner-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-light);
            border-radius: 999px;
            transition: all 0.25s ease;
        }

        .partner-tag:hover {
            color: var(--text-primary);
            border-color: var(--border-medium);
            background: rgba(255, 255, 255, 0.08);
        }

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

        .faq-item {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 18px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            transition: background 0.25s ease;
            user-select: none;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.05);
        }

        .faq-question .q-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }

        .faq-answer {
            display: none;
            padding: 0 18px 18px 58px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

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

        .faq-item.open .faq-question {
            background: rgba(43, 212, 254, 0.06);
        }

        /* ---------- Guarantee Bar ---------- */
        .guarantee-bar {
            background: rgba(20, 40, 70, 0.4);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .guarantee-bar .guarantee-text {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .guarantee-bar .guarantee-text strong {
            color: var(--accent);
            font-weight: 600;
        }

        /* ---------- CTA ---------- */
        .cta-section {
            background: linear-gradient(180deg, rgba(27, 110, 243, 0.1) 0%, rgba(14, 26, 43, 0.8) 100%);
        }

        .cta-box {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            border: 1px solid rgba(43, 212, 254, 0.2);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .cta-box h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .cta-box p {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* ---------- App Section ---------- */
        .app-section .app-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 480px;
            margin-bottom: 18px;
        }

        .app-badge-group {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .app-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            transition: all 0.25s ease;
            cursor: pointer;
        }

        .app-badge:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--border-medium);
        }

        /* ---------- Footer ---------- */
        .footer {
            background: #0A101C;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 40px 40px 28px;
        }

        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-bottom: 28px;
        }

        .footer-col {
            flex: 1;
            min-width: 160px;
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

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

        .footer-col li {
            margin-bottom: 8px;
        }

        .footer-col a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color 0.25s ease;
        }

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

        .footer-col .footer-desc {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
        }

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

        .footer-copy {
            font-size: 13px;
            color: var(--text-muted);
        }

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

        .footer-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
        }

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

        /* ---------- Responsive ---------- */
        @media screen and (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .main-wrapper {
                margin-left: 0;
            }
            .mobile-nav {
                display: flex;
            }
            .drawer-overlay {
                display: block;
                pointer-events: none;
            }
            .drawer-overlay.open {
                pointer-events: auto;
            }
            .hero {
                min-height: 60vh;
                padding: 80px 24px 40px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .section {
                padding: 48px 24px;
            }
            .stats-bar {
                gap: 12px;
            }
            .stat-item {
                min-width: 120px;
                padding: 16px 14px;
            }
            .stat-item .stat-num {
                font-size: 24px;
            }
        }

        @media screen and (max-width: 768px) {
            .hero {
                min-height: auto;
                padding: 80px 16px 40px;
            }
            .hero h1 {
                font-size: 26px;
                letter-spacing: 0.3px;
            }
            .hero-desc {
                font-size: 14px;
            }
            .section {
                padding: 40px 16px;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .entry-card,
            .service-card,
            .case-card,
            .version-card {
                padding: 18px 16px;
            }
            .process-steps {
                flex-direction: column;
                gap: 12px;
            }
            .process-step {
                min-width: 0;
            }
            .cta-box {
                padding: 24px 18px;
                flex-direction: column;
                text-align: left;
                align-items: flex-start;
            }
            .footer {
                padding: 32px 16px 20px;
            }
            .footer-grid {
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: left;
                align-items: flex-start;
            }
        }

        @media screen and (max-width: 520px) {
            .hero h1 {
                font-size: 22px;
                line-height: 1.4;
            }
            .hero-desc {
                font-size: 13px;
            }
            .hero-countdown {
                gap: 8px;
            }
            .countdown-item {
                padding: 8px 10px;
                min-width: 50px;
            }
            .countdown-item .count-num {
                font-size: 18px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .stats-bar {
                flex-direction: column;
            }
            .stat-item {
                min-width: 0;
            }
            .news-item img {
                width: 60px;
                height: 48px;
            }
            .faq-answer {
                padding-left: 18px;
                padding-right: 18px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 14px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0E1A2B;
            --bg-card: rgba(20, 40, 70, 0.35);
            --bg-card-hover: rgba(30, 55, 90, 0.5);
            --primary: #1B6EF3;
            --primary-light: #5EACFF;
            --accent: #2DD4FE;
            --accent-purple: #7C3AED;
            --text-primary: #E6F0FF;
            --text-secondary: #9FB3CC;
            --text-muted: #6B819E;
            --border-light: rgba(255, 255, 255, 0.08);
            --border-medium: rgba(255, 255, 255, 0.16);
            --border-glow: rgba(43, 212, 254, 0.4);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-glow: 0 0 18px rgba(43, 212, 254, 0.35);
            --sidebar-width: 250px;
            --spacing-section: 72px;
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Source Han Sans', 'Microsoft YaHei', sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.3s ease, background 0.3s ease, border-color 0.3s ease;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--text-primary);
        }

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

        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .main-wrapper {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
        }

        /* ---------- Sidebar ---------- */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: #0C1424;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            flex-direction: column;
            z-index: 100;
            overflow-y: auto;
        }

        .sidebar-brand {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .sidebar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-brand .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
        }

        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 0 10px 8px;
        }

        .sidebar-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            font-size: 14px;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: all 0.25s ease;
        }

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

        .sidebar-nav a.active {
            background: rgba(27, 110, 243, 0.15);
            color: var(--text-primary);
            font-weight: 600;
        }

        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(43, 212, 254, 0.6);
        }

        .sidebar-nav a .nav-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
        }

        .sidebar-footer {
            padding: 16px 20px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .sidebar-footer a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 6px 0;
        }

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

        /* ---------- Mobile Nav ---------- */
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: #0C1424;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 99;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }

        .mobileNav-brand {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobileNav-brand .brand-icon {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            font-weight: 700;
        }

        .mobileNav-toggle {
            width: 36px;
            height: 36px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 6px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            cursor: pointer;
        }

        .mobileNav-toggle span {
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 1px;
            transition: all 0.3s ease;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(0, 0, 0, 0.6);
            z-index: 98;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .mobile-drawer.open {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-drawer-panel {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            height: 100vh;
            background: #0C1424;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 98;
            transition: left 0.3s ease;
            padding: 24px 20px;
            overflow-y: auto;
        }

        .mobile-drawer-panel.open {
            left: 0;
        }

        .mobile-drawer-panel .sidebar-brand {
            padding: 0 0 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 16px;
        }

        .mobile-drawer-panel .sidebar-nav {
            padding: 8px 0;
        }

        .mobile-drawer-panel .sidebar-nav a {
            padding: 10px 12px;
            font-size: 15px;
        }

        .mobile-drawer-panel .sidebar-nav a.active::after {
            display: none;
        }

        /* ---------- Common Section ---------- */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 32px;
        }

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

        .section-head {
            margin-bottom: 36px;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            margin: 0 0 12px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            margin: 0;
            max-width: 680px;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(27, 110, 243, 0.15);
            color: var(--accent);
            font-size: 12px;
            border-radius: 20px;
            border: 1px solid rgba(43, 212, 254, 0.25);
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            transition: all 0.3s ease;
            cursor: pointer;
            border: none;
            text-decoration: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(43, 212, 254, 0.5);
            color: #fff;
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-medium);
            color: var(--text-primary);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.28);
            color: var(--text-primary);
            transform: translateY(-2px);
        }

        .glass-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            transition: all 0.3s ease;
        }

        .glass-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(255, 255, 255, 0.14);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
            transform: translateY(-3px);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            border-radius: var(--radius-sm);
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }

        .badge-blue {
            background: rgba(27, 110, 243, 0.18);
            color: var(--primary-light);
            border: 1px solid rgba(27, 110, 243, 0.35);
        }

        .badge-cyan {
            background: rgba(43, 212, 254, 0.15);
            color: var(--accent);
            border: 1px solid rgba(43, 212, 254, 0.3);
        }

        .badge-purple {
            background: rgba(124, 58, 237, 0.18);
            color: #B89BFF;
            border: 1px solid rgba(124, 58, 237, 0.4);
        }

        /* ---------- Events Hero ---------- */
        .events-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background-image: url('/assets/images/7831c0e597945132.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .events-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.75) 0%, rgba(11, 18, 32, 0.9) 100%);
        }

        .events-hero .container {
            position: relative;
            z-index: 1;
            padding-top: 60px;
            padding-bottom: 60px;
        }

        .events-hero h1 {
            font-size: 42px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: 0.5px;
            text-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }

        .events-hero p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 720px;
            margin: 0 0 24px;
            line-height: 1.9;
        }

        .events-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 8px;
        }

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

        /* ---------- Article Cards ---------- */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .article-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(14px);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: 0 14px 44px rgba(0, 0, 0, 0.4);
            border-color: rgba(255, 255, 255, 0.14);
        }

        .article-card .card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

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

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

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

        .article-card .card-badges {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 12px;
        }

        .article-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.5;
        }

        .article-card .card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 12px;
        }

        /* ---------- Topic Entry ---------- */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .topic-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px;
            text-align: left;
            transition: all 0.3s ease;
            cursor: pointer;
            text-decoration: none;
            display: block;
        }

        .topic-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(43, 212, 254, 0.25);
            box-shadow: var(--shadow-card);
        }

        .topic-item .topic-icon {
            font-size: 22px;
            margin-bottom: 12px;
            display: block;
        }

        .topic-item h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 8px;
        }

        .topic-item p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        /* ---------- Data Strip ---------- */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-block {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            text-align: center;
            transition: all 0.3s ease;
        }

        .data-block:hover {
            background: var(--bg-card-hover);
            border-color: rgba(43, 212, 254, 0.25);
        }

        .data-block .data-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            display: block;
            margin-bottom: 6px;
            letter-spacing: 1px;
        }

        .data-block .data-label {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* ---------- Deep Read ---------- */
        .deep-read-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .deep-read-item {
            display: flex;
            align-items: center;
            gap: 18px;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            transition: all 0.3s ease;
        }

        .deep-read-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(255, 255, 255, 0.14);
            transform: translateX(4px);
        }

        .deep-read-item .dr-index {
            width: 36px;
            height: 36px;
            background: rgba(27, 110, 243, 0.18);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--accent);
            flex-shrink: 0;
        }

        .deep-read-item .dr-content {
            flex: 1;
            min-width: 0;
        }

        .deep-read-item .dr-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin: 0 0 4px;
        }

        .deep-read-item .dr-content p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .deep-read-item .dr-badge {
            flex-shrink: 0;
        }

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

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            border-color: rgba(43, 212, 254, 0.2);
        }

        .faq-question {
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: all 0.3s ease;
            border-bottom: 1px solid transparent;
        }

        .faq-question .faq-q {
            width: 28px;
            height: 28px;
            background: rgba(27, 110, 243, 0.2);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            flex-shrink: 0;
            transition: all 0.3s ease;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            border-left: 3px solid transparent;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 14px 20px 18px;
            border-left-color: var(--accent);
            background: rgba(43, 212, 254, 0.05);
        }

        .faq-item.open .faq-question {
            border-bottom-color: rgba(255, 255, 255, 0.08);
        }

        .faq-item.open .faq-q {
            background: rgba(43, 212, 254, 0.25);
            box-shadow: 0 0 12px rgba(43, 212, 254, 0.3);
        }

        /* ---------- CTA Section ---------- */
        .cta-section {
            background: linear-gradient(135deg, rgba(27, 110, 243, 0.12) 0%, rgba(124, 58, 237, 0.1) 100%);
            border: 1px solid rgba(43, 212, 254, 0.15);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            text-align: left;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at top right, rgba(43, 212, 254, 0.12), transparent 60%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            position: relative;
        }

        .cta-section p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0 0 24px;
            max-width: 560px;
            position: relative;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            position: relative;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 260px;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            font-size: 15px;
            transition: all 0.3s ease;
        }

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

        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 12px rgba(43, 212, 254, 0.25);
            outline: none;
        }

        .subscribe-form button {
            white-space: nowrap;
        }

        /* ---------- Footer ---------- */
        .footer {
            background: #0C1424;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 48px 32px 24px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto;
            margin-bottom: 32px;
        }

        .footer-col h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }

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

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

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.3s ease;
        }

        .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom .footer-copy {
            font-weight: 500;
            color: var(--text-secondary);
        }

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

        .footer-links {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }

        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
        }

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

        /* ---------- Responsive ---------- */
        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }

            .mobile-nav {
                display: flex;
            }

            .mobile-drawer {
                display: block;
                pointer-events: none;
            }

            .mobile-drawer.open {
                pointer-events: auto;
            }

            .player-drawer-panel.open {
                left: 0;
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: 56px;
            }

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

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

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

            .events-hero h1 {
                font-size: 34px;
            }

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

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }

            section {
                padding: 48px 0;
            }

            .section-head h2 {
                font-size: 22px;
            }

            .events-hero h1 {
                font-size: 28px;
            }

            .events-hero p {
                font-size: 15px;
            }

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

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

            .data-strip {
                grid-template-columns: 1fr;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .footer-links {
                margin-left: 0;
            }

            .cta-section {
                padding: 32px 24px;
            }

            .subscribe-form input {
                min-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .events-hero h1 {
                font-size: 24px;
            }

            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }

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

/* roulang page: category2 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0E1A2B;
            --bg-card: rgba(20, 40, 70, 0.35);
            --bg-card-hover: rgba(30, 55, 90, 0.5);
            --primary: #1B6EF3;
            --primary-light: #5EACFF;
            --accent: #2DD4FE;
            --accent-purple: #7C3AED;
            --text-primary: #E6F0FF;
            --text-secondary: #9FB3CC;
            --text-muted: #6B819E;
            --border-light: rgba(255, 255, 255, 0.08);
            --border-medium: rgba(255, 255, 255, 0.16);
            --border-glow: rgba(43, 212, 254, 0.4);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-glow: 0 0 18px rgba(43, 212, 254, 0.35);
            --sidebar-width: 250px;
            --spacing-section: 72px;
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Source Han Sans', 'Microsoft YaHei', sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.3s ease, background 0.3s ease, border-color 0.3s ease;
        }
        a:hover {
            color: var(--primary-light);
        }
        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--text-primary);
        }
        button:focus,
        a:focus,
        input:focus,
        select:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .main-wrapper {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        .sidebar-layout {
            display: flex;
            flex: 1;
            min-height: 100vh;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: #0C1424;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            flex-direction: column;
            z-index: 30;
            transition: transform 0.3s ease;
        }
        .sidebar-brand {
            padding: 22px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .sidebar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }
        .sidebar-brand .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            overflow-y: auto;
        }
        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 0 10px 8px;
            display: block;
        }
        .sidebar-nav li {
            margin-bottom: 2px;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            font-size: 14px;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: all 0.25s ease;
        }
        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-primary);
        }
        .sidebar-nav a.active {
            background: rgba(27, 110, 243, 0.15);
            color: var(--text-primary);
            font-weight: 600;
        }
        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(43, 212, 254, 0.6);
        }
        .sidebar-nav a .nav-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
        }
        .sidebar-footer {
            padding: 14px 20px 18px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .sidebar-footer a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 5px 0;
        }
        .sidebar-footer a:hover {
            color: var(--text-primary);
        }
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
            display: flex;
            flex-direction: column;
        }
        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: #0C1424;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 99;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }
        .mobileNav-brand {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobileNav-brand .brand-icon {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            font-weight: 700;
        }
        .mobileNav-toggle {
            width: 40px;
            height: 40px;
            border: 1px solid var(--border-medium);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 4px;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .mobileNav-toggle:hover {
            background: var(--bg-card-hover);
        }
        .mobileNav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 260px;
            background: #0C1424;
            z-index: 100;
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            display: flex;
            flex-direction: column;
            box-shadow: 4px 0 40px rgba(0, 0, 0, 0.5);
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .mobile-drawer .drawer-header {
            padding: 18px 16px 14px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-drawer .drawer-brand {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-drawer .drawer-close {
            width: 36px;
            height: 36px;
            border: 1px solid var(--border-medium);
            background: var(--bg-card);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.3s ease;
        }
        .mobile-drawer .drawer-close:hover {
            background: var(--bg-card-hover);
        }
        .mobile-drawer .sidebar-nav {
            padding: 16px 12px;
        }
        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 98;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        .drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .page-header {
            padding: 44px 48px 0;
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
        }
        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
        }
        .page-section {
            padding: var(--spacing-section) 48px;
            max-width: 1200px;
            width: 100%;
            margin: 0 auto;
        }
        .page-section.narrow {
            max-width: 960px;
        }
        .section-tag {
            display: inline-block;
            font-size: 13px;
            letter-spacing: 1px;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.35;
            letter-spacing: 0.3px;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 680px;
        }
        .hero-guides {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: stretch;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-card);
            margin-bottom: 0;
        }
        .hero-guides .hero-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .hero-guides .hero-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: brightness(0.5) saturate(1.2);
        }
        .hero-guides .hero-overlay {
            position: absolute;
            inset: 0;
            z-index: 1;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.92) 0%, rgba(11, 18, 32, 0.55) 50%, rgba(14, 26, 43, 0.75) 100%);
        }
        .hero-guides .hero-content {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 48px 52px;
            flex: 1;
        }
        .hero-guides .hero-content h1 {
            font-size: 38px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }
        .hero-guides .hero-content .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 560px;
            margin-bottom: 28px;
        }
        .hero-guides .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .hero-guides .hero-panel {
            position: relative;
            z-index: 2;
            width: 340px;
            min-width: 280px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 32px;
            border-left: 1px solid rgba(255, 255, 255, 0.08);
            background: rgba(12, 20, 36, 0.55);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }
        .hero-guides .hero-panel .panel-inner {
            width: 100%;
        }
        .hero-guides .hero-panel .panel-label {
            font-size: 12px;
            letter-spacing: 1.5px;
            text-transform: uppercase;
            color: var(--text-muted);
            margin-bottom: 14px;
            font-weight: 600;
        }
        .hero-guides .hero-panel .panel-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 10px;
        }
        .hero-guides .hero-panel .panel-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 18px;
        }
        .hero-guides .hero-panel .panel-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-guides .hero-panel .panel-link:hover {
            color: var(--primary-light);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-md);
            border: none;
            cursor: pointer;
            transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
            white-space: nowrap;
            text-decoration: none;
            letter-spacing: 0.3px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: var(--shadow-glow);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(43, 212, 254, 0.5);
            color: #fff;
        }
        .btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--text-primary);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.16);
            transform: translateY(-2px);
            color: var(--text-primary);
        }
        .guides-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .guide-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
            border-color: var(--border-glow);
            background: var(--bg-card-hover);
        }
        .guide-card .card-image {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #0A1120;
        }
        .guide-card .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .guide-card:hover .card-image img {
            transform: scale(1.05);
        }
        .guide-card .card-image .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(11, 18, 32, 0.8);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid var(--border-medium);
            border-radius: 20px;
            padding: 4px 12px;
            font-size: 12px;
            color: var(--accent);
            font-weight: 600;
        }
        .guide-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 8px;
            letter-spacing: 0.2px;
        }
        .guide-card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 16px;
            flex: 1;
        }
        .guide-card .card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 14px;
        }
        .guide-card .card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .guide-card .card-meta .meta-dot {
            width: 4px;
            height: 4px;
            background: var(--accent);
            border-radius: 50%;
            flex-shrink: 0;
        }
        .topic-strip {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .topic-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 18px 20px;
            transition: all 0.3s ease;
            cursor: pointer;
            text-decoration: none;
            display: block;
        }
        .topic-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card);
        }
        .topic-item .topic-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .topic-item .topic-count {
            font-size: 12px;
            color: var(--text-muted);
        }
        .topic-item .topic-icon {
            font-size: 18px;
            color: var(--accent);
            margin-bottom: 6px;
            display: block;
        }
        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .data-strip .data-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            text-align: left;
            transition: all 0.3s ease;
        }
        .data-strip .data-item:hover {
            border-color: var(--border-glow);
            background: var(--bg-card-hover);
        }
        .data-strip .data-number {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.3;
            margin-bottom: 4px;
            letter-spacing: 0.5px;
        }
        .data-strip .data-label {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .recommend-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }
        .recommend-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.3s ease;
            text-decoration: none;
            display: block;
        }
        .recommend-card:hover {
            transform: translateY(-2px);
            border-color: var(--border-glow);
            box-shadow: var(--shadow-card);
            background: var(--bg-card-hover);
        }
        .recommend-card .rec-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #0A1120;
        }
        .recommend-card .rec-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .recommend-card:hover .rec-image img {
            transform: scale(1.04);
        }
        .recommend-card .rec-body {
            padding: 14px 16px;
        }
        .recommend-card .rec-body h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 4px;
        }
        .recommend-card .rec-body .rec-date {
            font-size: 11px;
            color: var(--text-muted);
        }
        .faq-section {
            max-width: 800px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: var(--border-glow);
        }
        .faq-item .faq-question {
            padding: 18px 22px;
            cursor: pointer;
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            user-select: none;
            transition: background 0.3s ease;
        }
        .faq-item .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-item .faq-q-mark {
            width: 26px;
            height: 26px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 0 12px rgba(43, 212, 254, 0.3);
        }
        .faq-item .faq-answer {
            padding: 0 22px 18px 60px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item .faq-question .faq-arrow {
            margin-left: auto;
            font-size: 18px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-arrow {
            transform: rotate(180deg);
        }
        .cta-banner {
            background: linear-gradient(135deg, rgba(27, 110, 243, 0.18), rgba(45, 212, 254, 0.1));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card);
        }
        .cta-banner .cta-text h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .cta-banner .cta-text p {
            font-size: 14px;
            color: var(--text-secondary);
            max-width: 520px;
            line-height: 1.65;
        }
        .cta-banner .cta-actions {
            display: flex;
            gap: 12px;
            flex-shrink: 0;
        }
        .footer {
            background: #0C1424;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 44px 48px 28px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            max-width: 1200px;
            margin: 0 auto 28px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.3px;
        }
        .footer-col p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-col ul li {
            margin-bottom: 6px;
        }
        .footer-col ul a {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .footer-col ul a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            max-width: 1200px;
            margin: 0 auto;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom .footer-copy {
            color: var(--text-secondary);
        }
        .footer-bottom .footer-icp {
            color: var(--text-muted);
        }
        .footer-bottom .footer-links {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }
        .footer-bottom .footer-links a {
            color: var(--text-muted);
            font-size: 12px;
        }
        .footer-bottom .footer-links a:hover {
            color: var(--accent);
        }
        @media (max-width: 1024px) {
            .sidebar {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }
            .mobile-nav {
                display: flex;
            }
            .hero-guides {
                flex-direction: column;
                min-height: auto;
            }
            .hero-guides .hero-content {
                padding: 36px 28px;
            }
            .hero-guides .hero-content h1 {
                font-size: 30px;
            }
            .hero-guides .hero-panel {
                width: 100%;
                min-width: auto;
                border-left: none;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                padding: 24px 28px;
            }
            .topic-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .recommend-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .page-header,
            .page-section {
                padding-left: 24px;
                padding-right: 24px;
            }
            .footer {
                padding-left: 24px;
                padding-right: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 768px) {
            :root {
                --spacing-section: 48px;
            }
            .hero-guides .hero-content h1 {
                font-size: 26px;
            }
            .hero-guides .hero-content {
                padding: 28px 20px;
            }
            .hero-guides .hero-panel {
                padding: 20px;
            }
            .guides-grid {
                grid-template-columns: 1fr;
            }
            .topic-strip {
                grid-template-columns: 1fr;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .data-strip .data-item {
                padding: 14px 16px;
            }
            .data-strip .data-number {
                font-size: 22px;
            }
            .recommend-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 22px;
            }
            .cta-banner {
                padding: 28px 22px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-banner .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-banner .cta-actions .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-bottom .footer-links {
                margin-left: 0;
            }
        }
        @media (max-width: 520px) {
            .page-header,
            .page-section {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero-guides .hero-content h1 {
                font-size: 22px;
            }
            .hero-guides .hero-content .hero-subtitle {
                font-size: 14px;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
            .data-strip {
                grid-template-columns: 1fr 1fr;
            }
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px 50px;
                font-size: 13px;
            }
            .footer {
                padding-left: 16px;
                padding-right: 16px;
                padding-top: 32px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0E1A2B;
            --bg-card: rgba(20, 40, 70, 0.35);
            --bg-card-hover: rgba(30, 55, 90, 0.5);
            --primary: #1B6EF3;
            --primary-light: #5EACFF;
            --accent: #2DD4FE;
            --accent-purple: #7C3AED;
            --text-primary: #E6F0FF;
            --text-secondary: #9FB3CC;
            --text-muted: #6B819E;
            --border-light: rgba(255, 255, 255, 0.08);
            --border-medium: rgba(255, 255, 255, 0.16);
            --border-glow: rgba(43, 212, 254, 0.4);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-glow: 0 0 18px rgba(43, 212, 254, 0.35);
            --sidebar-width: 250px;
            --spacing-section: 72px;
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Source Han Sans', 'Microsoft YaHei', sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            margin: 0;
            display: flex;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.3s ease, background 0.3s ease, border-color 0.3s ease;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--text-primary);
        }

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

        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            bottom: 0;
            width: var(--sidebar-width);
            background: #0C1424;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 50;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
        }

        .sidebar-brand {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .sidebar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
        }

        .sidebar-brand .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
        }

        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 0 10px 8px;
            margin: 0;
        }

        .sidebar-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            font-size: 14px;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: all 0.25s ease;
        }

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

        .sidebar-nav a.active {
            background: rgba(27, 110, 243, 0.15);
            color: var(--text-primary);
            font-weight: 600;
        }

        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(43, 212, 254, 0.6);
        }

        .sidebar-nav a .nav-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
        }

        .sidebar-footer {
            padding: 16px 20px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .sidebar-footer a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 6px 0;
        }

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

        .main-wrapper {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: #0C1424;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 99;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }

        .mobile-nav-brand {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-nav-brand .brand-icon {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            font-weight: 700;
        }

        .menu-toggle {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            color: var(--text-primary);
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 18px;
            transition: background 0.3s ease;
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 98;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .drawer-overlay.open {
            opacity: 1;
        }

        .drawer {
            position: fixed;
            top: 0;
            left: -280px;
            bottom: 0;
            width: 260px;
            background: #0C1424;
            z-index: 100;
            transition: left 0.35s ease;
            display: flex;
            flex-direction: column;
            border-right: 1px solid rgba(255, 255, 255, 0.08);
        }

        .drawer.open {
            left: 0;
        }

        .drawer-close {
            position: absolute;
            top: 12px;
            right: 12px;
            background: transparent;
            border: none;
            color: var(--text-secondary);
            font-size: 20px;
            cursor: pointer;
        }

        .drawer-nav {
            padding: 70px 20px 20px;
            flex: 1;
            overflow-y: auto;
            list-style: none;
            margin: 0;
        }

        .drawer-nav li {
            margin-bottom: 4px;
        }

        .drawer-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            font-size: 15px;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all 0.25s ease;
        }

        .drawer-nav a:hover,
        .drawer-nav a.active {
            background: rgba(27, 110, 243, 0.15);
            color: var(--text-primary);
        }

        .drawer-nav a.active {
            font-weight: 600;
        }

        .drawer-nav a .nav-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
        }

        .drawer-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--text-secondary);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            padding: 20px 0 0;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

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

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

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

        .category-hero {
            position: relative;
            margin-top: 12px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: rgba(20, 40, 70, 0.35);
            border: 1px solid var(--border-light);
            min-height: 320px;
            display: flex;
            align-items: center;
            padding: 48px 40px;
            background-image: linear-gradient(rgba(11, 18, 32, 0.55), rgba(11, 18, 32, 0.8)), url('/assets/images/7831c0e597945132.webp');
            background-size: cover;
            background-position: center;
            box-shadow: var(--shadow-card);
        }

        .category-hero .hero-text {
            max-width: 640px;
            position: relative;
            z-index: 1;
        }

        .category-hero h1 {
            font-size: 38px;
            font-weight: 700;
            letter-spacing: 1px;
            margin: 0 0 14px;
            color: #fff;
            line-height: 1.3;
        }

        .category-hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-hero .subtitle {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 560px;
            margin: 0;
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(27, 110, 243, 0.25);
            border: 1px solid rgba(43, 212, 254, 0.3);
            border-radius: 20px;
            padding: 6px 14px;
            font-size: 13px;
            color: var(--accent);
            margin-bottom: 16px;
            font-weight: 500;
        }

        .section {
            padding: 56px 0 0;
        }

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

        .section-header h2 {
            font-size: 26px;
            font-weight: 700;
            margin: 0;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }

        .section-header .section-link {
            font-size: 14px;
            color: var(--accent);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .section-header .section-link:hover {
            color: var(--primary-light);
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 4px 0 0;
            line-height: 1.7;
        }

        .team-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .team-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .team-card:hover {
            transform: translateY(-4px);
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35), var(--shadow-glow);
        }

        .team-card .card-img {
            width: 100%;
            height: 160px;
            overflow: hidden;
            position: relative;
        }

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

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

        .team-card .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(11, 18, 32, 0.7) 100%);
            pointer-events: none;
        }

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

        .team-card .card-tag {
            display: inline-block;
            background: rgba(27, 110, 243, 0.2);
            border: 1px solid rgba(43, 212, 254, 0.25);
            border-radius: 20px;
            padding: 3px 12px;
            font-size: 12px;
            color: var(--accent);
            font-weight: 500;
            margin-bottom: 10px;
            align-self: flex-start;
        }

        .team-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 8px;
            color: #fff;
            line-height: 1.4;
        }

        .team-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0 0 12px;
            flex: 1;
        }

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

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
            align-items: center;
        }

        .news-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            transform: translateX(4px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
        }

        .news-item .news-thumb {
            width: 120px;
            height: 80px;
            flex-shrink: 0;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: rgba(255, 255, 255, 0.05);
        }

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

        .news-item .news-content {
            flex: 1;
            min-width: 0;
        }

        .news-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text-primary);
            line-height: 1.5;
        }

        .news-item p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0 0 8px;
            line-height: 1.6;
        }

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

        .news-item .news-tag {
            background: rgba(27, 110, 243, 0.18);
            border-radius: 4px;
            padding: 2px 8px;
            font-size: 12px;
            color: var(--accent);
            font-weight: 500;
        }

        .stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
        }

        .stat-item {
            text-align: left;
            padding: 0 8px;
        }

        .stat-item .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.3;
            letter-spacing: 0.5px;
            text-shadow: 0 0 20px rgba(43, 212, 254, 0.3);
        }

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

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

        .topic-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

        .topic-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-glow);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.3);
        }

        .topic-card .topic-icon {
            font-size: 28px;
            margin-bottom: 14px;
            color: var(--accent);
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 8px;
            color: #fff;
        }

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

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

        .recommend-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

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

        .recommend-card .rec-img {
            width: 100%;
            height: 150px;
            overflow: hidden;
        }

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

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

        .recommend-card .rec-body {
            padding: 16px 20px 18px;
        }

        .recommend-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--text-primary);
            line-height: 1.5;
        }

        .recommend-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        .faq-section {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 18px 0;
        }

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

        .faq-question {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: baseline;
            gap: 10px;
            cursor: pointer;
            margin: 0;
            transition: color 0.3s ease;
        }

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

        .faq-question .q-mark {
            color: var(--accent);
            font-weight: 700;
            flex-shrink: 0;
            font-size: 18px;
            text-shadow: 0 0 10px rgba(43, 212, 254, 0.4);
        }

        .faq-answer {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin: 10px 0 0 28px;
            display: none;
        }

        .faq-answer.open {
            display: block;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-6px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .cta-section {
            background: linear-gradient(135deg, rgba(27, 110, 243, 0.15), rgba(43, 212, 254, 0.08));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card), var(--shadow-glow);
        }

        .cta-section .cta-text h3 {
            font-size: 22px;
            font-weight: 700;
            margin: 0 0 6px;
            color: #fff;
        }

        .cta-section .cta-text p {
            font-size: 15px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            text-align: center;
            text-decoration: none;
            justify-content: center;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(43, 212, 254, 0.5);
            color: #fff;
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-medium);
            color: var(--text-primary);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.16);
            transform: translateY(-2px);
            color: #fff;
        }

        .footer {
            margin-top: 72px;
            background: #0C1424;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 48px 24px 28px;
            color: var(--text-secondary);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            max-width: 1200px;
            margin: 0 auto;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-col h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: 0.5px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            max-width: 360px;
        }

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

        .footer-col li {
            margin-bottom: 8px;
        }

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

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

        .footer-bottom {
            max-width: 1200px;
            margin: 20px auto 0;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom .footer-copy {
            margin-right: 8px;
        }

        .footer-bottom .footer-icp {
            margin-right: 8px;
        }

        .footer-links {
            display: flex;
            gap: 16px;
            margin-left: auto;
        }

        .footer-links a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color 0.3s ease;
        }

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

        .back-to-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            width: 42px;
            height: 42px;
            background: rgba(27, 110, 243, 0.3);
            border: 1px solid var(--border-glow);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 18px;
            cursor: pointer;
            z-index: 40;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-glow);
            text-decoration: none;
        }

        .back-to-top:hover {
            background: rgba(27, 110, 243, 0.5);
            transform: translateY(-3px);
            color: #fff;
        }

        @media (max-width: 1024px) {
            :root {
                --sidebar-width: 0px;
            }
            .sidebar {
                display: none;
            }
            .main-wrapper {
                margin-left: 0;
            }
            .mobile-nav {
                display: flex;
            }
            .drawer-overlay {
                display: block;
                pointer-events: none;
            }
            .drawer-overlay.open {
                pointer-events: auto;
            }
            .drawer {
                display: flex;
            }
            .team-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .recommend-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-bar {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-hero {
                padding: 36px 28px;
                min-height: 260px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 40px 0 0;
            }
            .section-header h2 {
                font-size: 22px;
            }
            .team-grid {
                grid-template-columns: 1fr;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .recommend-grid {
                grid-template-columns: 1fr;
            }
            .stats-bar {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
                padding: 20px 16px;
            }
            .stat-item .stat-number {
                font-size: 24px;
            }
            .category-hero {
                padding: 28px 20px;
                min-height: 220px;
            }
            .category-hero h1 {
                font-size: 26px;
            }
            .category-hero .subtitle {
                font-size: 15px;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 18px;
            }
            .news-item .news-thumb {
                width: 100%;
                height: 140px;
            }
            .cta-section {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-links {
                margin-left: 0;
            }
        }

        @media (max-width: 520px) {
            .stats-bar {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .stat-item {
                text-align: center;
            }
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .breadcrumb {
                font-size: 12px;
                padding: 14px 0 0;
            }
            .category-hero {
                min-height: 200px;
                padding: 22px 16px;
            }
            .category-hero h1 {
                font-size: 22px;
            }
            .category-hero .subtitle {
                font-size: 14px;
                line-height: 1.6;
            }
            .btn {
                padding: 10px 18px;
                font-size: 14px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0E1A2B;
            --bg-card: rgba(20, 40, 70, 0.35);
            --bg-card-hover: rgba(30, 55, 90, 0.5);
            --primary: #1B6EF3;
            --primary-light: #5EACFF;
            --accent: #2DD4FE;
            --accent-purple: #7C3AED;
            --text-primary: #E6F0FF;
            --text-secondary: #9FB3CC;
            --text-muted: #6B819E;
            --border-light: rgba(255, 255, 255, 0.08);
            --border-medium: rgba(255, 255, 255, 0.16);
            --border-glow: rgba(43, 212, 254, 0.4);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.25);
            --shadow-glow: 0 0 18px rgba(43, 212, 254, 0.35);
            --sidebar-width: 250px;
            --spacing-section: 72px;
            --font-sans: 'PingFang SC', 'Noto Sans SC', 'Source Han Sans', 'Microsoft YaHei', sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.3s ease, background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.25s ease;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
            font-size: 15px;
            color: var(--text-primary);
        }

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

        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: #0C1424;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            flex-direction: column;
            z-index: 100;
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.4);
            overflow-y: auto;
        }

        .sidebar-brand {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .sidebar-brand .brand-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 0 14px rgba(43, 212, 254, 0.3);
        }

        .sidebar-brand .brand-name {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            overflow-y: auto;
        }

        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 0 10px 8px;
            font-weight: 600;
        }

        .sidebar-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            font-size: 14px;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: all 0.25s ease;
            font-weight: 500;
        }

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

        .sidebar-nav a.active {
            background: rgba(27, 110, 243, 0.15);
            color: var(--text-primary);
            font-weight: 600;
        }

        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(43, 212, 254, 0.6);
        }

        .sidebar-nav a .nav-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
            flex-shrink: 0;
        }

        .sidebar-footer {
            padding: 16px 20px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            flex-shrink: 0;
        }

        .sidebar-footer a {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            padding: 6px 0;
            transition: color 0.3s ease;
        }

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

        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-width: 0;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        .main-content {
            flex: 1;
            padding: 0;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: #0C1424;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 99;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }

        .mobileNav-brand {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobileNav-brand .brand-icon {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            font-weight: 700;
        }

        .mobile-menu-btn {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 8px;
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--text-primary);
            font-size: 20px;
            transition: background 0.3s ease;
        }

        .mobile-menu-btn:hover {
            background: rgba(255, 255, 255, 0.16);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 56px;
            left: 0;
            right: 0;
            bottom: 0;
            background: #0C1424;
            z-index: 98;
            padding: 16px 20px;
            overflow-y: auto;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            transform: translateX(-100%);
            transition: transform 0.3s ease;
        }

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

        .mobile-drawer ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-drawer li {
            margin-bottom: 4px;
        }

        .mobile-drawer a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            font-size: 15px;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: all 0.25s ease;
            font-weight: 500;
        }

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

        .mobile-drawer a.active {
            background: rgba(27, 110, 243, 0.15);
            color: var(--text-primary);
            font-weight: 600;
        }

        .mobile-drawer a .nav-icon {
            font-size: 16px;
            width: 20px;
            text-align: center;
        }

        .hero-section {
            position: relative;
            min-height: 480px;
            display: flex;
            align-items: center;
            overflow: hidden;
            padding: 60px 40px;
            background: url('/assets/images/a9612e65a6d614cd.webp') no-repeat center center;
            background-size: cover;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 18, 32, 0.92) 0%, rgba(14, 26, 43, 0.82) 50%, rgba(11, 18, 32, 0.75) 100%);
            z-index: 1;
        }

        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .hero-section .hero-eyebrow {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(27, 110, 243, 0.2);
            border: 1px solid rgba(43, 212, 254, 0.3);
            border-radius: 20px;
            font-size: 13px;
            color: var(--accent);
            letter-spacing: 0.5px;
            margin-bottom: 18px;
            font-weight: 500;
        }

        .hero-section h1 {
            font-size: 40px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: 0.5px;
        }

        .hero-section .hero-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 24px;
            max-width: 600px;
        }

        .hero-section .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-bottom: 28px;
        }

        .hero-section .hero-stat {
            text-align: left;
        }

        .hero-section .hero-stat .stat-num {
            font-size: 26px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-section .hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        .hero-section .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            text-decoration: none;
            letter-spacing: 0.3px;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: var(--shadow-glow);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(43, 212, 254, 0.5);
            color: #fff;
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            color: var(--text-primary);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
            color: var(--text-primary);
        }

        .section {
            padding: var(--spacing-section) 40px;
            position: relative;
        }

        .section-header {
            margin-bottom: 36px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
            line-height: 1.4;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 600px;
            margin: 0;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 12px;
            color: var(--accent);
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
            background: rgba(43, 212, 254, 0.1);
            padding: 3px 10px;
            border-radius: 4px;
        }

        .review-cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.35s ease;
            display: flex;
            flex-direction: column;
        }

        .review-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
            border-color: rgba(43, 212, 254, 0.2);
        }

        .review-card .card-img {
            height: 180px;
            overflow: hidden;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
            position: relative;
        }

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

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

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

        .review-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }

        .review-card .card-tag {
            font-size: 11px;
            padding: 2px 10px;
            border-radius: 4px;
            background: rgba(27, 110, 243, 0.15);
            color: var(--accent);
            font-weight: 500;
            letter-spacing: 0.3px;
            border: 1px solid rgba(43, 212, 254, 0.2);
        }

        .review-card .card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.5;
            letter-spacing: 0.2px;
        }

        .review-card .card-excerpt {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .review-card .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--text-muted);
            padding-top: 10px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .review-card .card-link {
            font-size: 13px;
            color: var(--accent);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color 0.3s ease;
        }

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

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

        .topic-card {
            background: rgba(20, 40, 70, 0.3);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: all 0.35s ease;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .topic-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(43, 212, 254, 0.25);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }

        .topic-card .topic-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, rgba(27, 110, 243, 0.3), rgba(43, 212, 254, 0.2));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 14px;
            color: var(--accent);
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            letter-spacing: 0.2px;
        }

        .topic-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        .topic-card .topic-arrow {
            position: absolute;
            top: 24px;
            right: 24px;
            font-size: 18px;
            color: var(--text-muted);
            transition: all 0.3s ease;
        }

        .topic-card:hover .topic-arrow {
            color: var(--accent);
            transform: translateX(4px);
        }

        .data-snapshot-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .data-snapshot-card {
            background: var(--bg-card);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            text-align: left;
            box-shadow: var(--shadow-card);
            transition: all 0.35s ease;
        }

        .data-snapshot-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(43, 212, 254, 0.2);
            transform: translateY(-3px);
        }

        .data-snapshot-card .snapshot-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
            margin-bottom: 4px;
            letter-spacing: 0.5px;
        }

        .data-snapshot-card .snapshot-label {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .data-snapshot-card .snapshot-trend {
            font-size: 12px;
            margin-top: 8px;
            display: inline-block;
            padding: 2px 8px;
            border-radius: 4px;
            background: rgba(43, 212, 254, 0.1);
            color: var(--accent);
            font-weight: 500;
        }

        .featured-reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .featured-review-card {
            display: flex;
            flex-direction: column;
            background: rgba(20, 40, 70, 0.25);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.35s ease;
        }

        .featured-review-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(43, 212, 254, 0.2);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }

        .featured-review-card .featured-img {
            height: 150px;
            overflow: hidden;
        }

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

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

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

        .featured-review-card .featured-label {
            font-size: 11px;
            color: var(--accent);
            font-weight: 500;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }

        .featured-review-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.5;
            letter-spacing: 0.2px;
        }

        .featured-review-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin: 0;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .standards-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .standard-card {
            background: rgba(20, 40, 70, 0.3);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 22px 18px;
            transition: all 0.35s ease;
            position: relative;
        }

        .standard-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: linear-gradient(180deg, var(--primary), var(--accent));
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .standard-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(43, 212, 254, 0.2);
        }

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

        .standard-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.2px;
        }

        .standard-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        .cta-section {
            background: linear-gradient(135deg, rgba(27, 110, 243, 0.12) 0%, rgba(43, 212, 254, 0.08) 50%, rgba(124, 58, 237, 0.06) 100%);
            border-top: 1px solid rgba(43, 212, 254, 0.15);
            border-bottom: 1px solid rgba(43, 212, 254, 0.15);
            padding: 56px 40px;
            text-align: center;
        }

        .cta-section .cta-inner {
            max-width: 600px;
            margin: 0 auto;
        }

        .cta-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .cta-section p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .cta-form input[type="text"],
        .cta-form input[type="email"] {
            flex: 1;
            min-width: 200px;
            padding: 13px 16px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-md);
            color: var(--text-primary);
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .cta-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 12px rgba(43, 212, 254, 0.2);
            outline: none;
            background: rgba(255, 255, 255, 0.12);
        }

        .cta-form .btn {
            flex-shrink: 0;
        }

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

        .footer {
            background: #0A1120;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 48px 40px 24px;
            flex-shrink: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            max-width: 1200px;
            margin: 0 auto;
            margin-bottom: 28px;
        }

        .footer-col h5 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .footer-col .footer-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0;
            max-width: 320px;
        }

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

        .footer-col ul li {
            margin-bottom: 6px;
        }

        .footer-col ul a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color 0.3s ease;
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 12px;
            color: var(--text-muted);
            max-width: 1200px;
            margin: 0 auto;
        }

        .footer-bottom .footer-copy {
            font-weight: 500;
            color: var(--text-secondary);
        }

        .footer-bottom .footer-icp {
            display: inline-block;
        }

        .footer-bottom .footer-links {
            display: flex;
            gap: 14px;
        }

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

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

        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform 0.3s ease;
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .main-wrapper {
                margin-left: 0;
            }

            .mobile-nav {
                display: flex;
            }

            .mobile-drawer {
                display: block;
            }

            .hero-section {
                padding: 50px 24px;
                min-height: 400px;
            }

            .hero-section h1 {
                font-size: 32px;
            }

            .section {
                padding: 48px 24px;
            }

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

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

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

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

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

            .cta-section {
                padding: 40px 24px;
            }
        }

        @media (max-width: 768px) {
            .hero-section {
                padding: 40px 18px;
                min-height: 360px;
            }

            .hero-section h1 {
                font-size: 26px;
            }

            .hero-section .hero-desc {
                font-size: 14px;
            }

            .hero-section .hero-stats {
                gap: 16px;
            }

            .section {
                padding: 36px 18px;
            }

            .section-header h2 {
                font-size: 22px;
            }

            .review-cards-grid {
                grid-template-columns: 1fr;
            }

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

            .data-snapshot-grid {
                grid-template-columns: 1fr 1fr;
            }

            .featured-reviews-grid {
                grid-template-columns: 1fr;
            }

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

            .cta-section {
                padding: 32px 18px;
            }

            .cta-section h2 {
                font-size: 22px;
            }

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

            .cta-form input[type="text"],
            .cta-form input[type="email"] {
                min-width: 100%;
            }

            .footer {
                padding: 32px 18px 20px;
            }

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

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                padding: 32px 14px;
                min-height: 320px;
            }

            .hero-section h1 {
                font-size: 22px;
            }

            .hero-section .hero-desc {
                font-size: 13px;
                line-height: 1.7;
            }

            .hero-section .hero-stats {
                gap: 12px;
            }

            .hero-section .hero-stat .stat-num {
                font-size: 22px;
            }

            .hero-section .hero-stat .stat-label {
                font-size: 11px;
            }

            .hero-section .hero-actions {
                flex-direction: column;
                gap: 8px;
            }

            .btn {
                padding: 10px 18px;
                font-size: 14px;
                justify-content: center;
            }

            .section {
                padding: 28px 14px;
            }

            .section-header h2 {
                font-size: 20px;
            }

            .section-header p {
                font-size: 13px;
            }

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

            .data-snapshot-card .snapshot-num {
                font-size: 24px;
            }

            .data-snapshot-card .snapshot-label {
                font-size: 11px;
            }

            .review-card .card-img {
                height: 150px;
            }

            .featured-review-card .featured-img {
                height: 130px;
            }

            .cta-section h2 {
                font-size: 19px;
            }

            .cta-section p {
                font-size: 13px;
            }
        }