/* roulang page: index */
:root {
            --brand: #2563EB;
            --brand-hover: #1D4ED8;
            --brand-light: #EFF6FF;
            --brand-soft: #DBEAFE;
            --cyan2: #0EA5E9;
            --cyan3: #22D3EE;
            --amber2: #F59E0B;
            --bg: #F6F8FC;
            --card: #FFFFFF;
            --title: #0F172A;
            --body: #475569;
            --sub: #64748B;
            --weak: #94A3B8;
            --line: #E2E8F0;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --radius-img: 12px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(15, 23, 42, 0.10);
            --shadow-btn: 0 4px 12px rgba(37, 99, 235, 0.18);
            --shadow-btn-hover: 0 8px 18px rgba(37, 99, 235, 0.26);
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            --max-w: 1200px;
            --section-pad-y: 88px;
            --section-pad-y-mobile: 52px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        :focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            width: 100%;
            max-width: var(--max-w);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-alt {
            background: #FFFFFF;
        }

        .section-tight {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--brand);
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-label::before {
            content: '';
            width: 22px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.35;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 17px;
            color: var(--sub);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 40px;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--line);
        }

        .activity-bar {
            background: linear-gradient(90deg, #EFF6FF 0%, #F0F9FF 50%, #ECFEFF 100%);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
        }

        .activity-bar-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 8px 0;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--sub);
        }

        .activity-bar .dot-live {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #10B981;
            animation: pulse-dot 1.6s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.55;
                transform: scale(1.25);
            }
        }

        .activity-bar .badge-countdown {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            letter-spacing: 0.02em;
        }

        .nav-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            padding: 14px 0;
        }

        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.03em;
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--title);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--sub);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--brand);
            background: var(--brand-light);
        }

        .nav-link.active {
            color: var(--brand);
            background: var(--brand-light);
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: var(--brand);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 10px 18px;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-cta:hover {
            background: var(--brand-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            background: var(--brand-light);
            align-items: center;
            cursor: pointer;
            transition: var(--transition-base);
        }

        .hamburger:hover {
            background: var(--brand-soft);
        }

        .hamburger span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
            transition: var(--transition-smooth);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 16px 24px 24px;
            background: #fff;
            border-top: 1px solid var(--line);
        }

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

        .mobile-menu .nav-link {
            padding: 12px 14px;
            font-size: 16px;
            border-radius: 10px;
        }

        .mobile-menu .nav-cta {
            margin-top: 10px;
            justify-content: center;
            text-align: center;
        }

        /* Hero */
        .hero-section {
            padding: 0;
            position: relative;
            background: linear-gradient(180deg, #F0F5FF 0%, #F6F8FC 100%);
            overflow: hidden;
        }

        .hero-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/8e1816f88141b364.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            pointer-events: none;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 48px;
            align-items: center;
            padding: 72px 0 80px;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            max-width: 620px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            background: #fff;
            border: 1px solid var(--brand-soft);
            border-radius: 999px;
            padding: 7px 15px;
            font-size: 13px;
            font-weight: 600;
            color: var(--brand);
            margin-bottom: 20px;
            box-shadow: 0 4px 12px rgba(37, 99, 235, 0.06);
        }

        .hero-badge .dot-live {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #10B981;
            animation: pulse-dot 1.6s ease-in-out infinite;
        }

        .hero-title {
            font-size: 40px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.3;
            letter-spacing: -0.02em;
            margin-bottom: 22px;
        }

        .hero-title span {
            color: var(--brand);
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.9;
            color: var(--sub);
            margin-bottom: 32px;
            max-width: 540px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand);
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            padding: 13px 24px;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-btn);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--brand-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--brand);
            font-size: 16px;
            font-weight: 600;
            padding: 13px 22px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--brand);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-outline:hover {
            background: var(--brand-light);
            border-color: var(--brand-hover);
            transform: translateY(-2px);
        }

        .btn-text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand);
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition-base);
        }

        .btn-text-link:hover {
            gap: 10px;
            color: var(--brand-hover);
        }

        .hero-visual {
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-panel {
            background: #fff;
            border-radius: 18px;
            box-shadow: 0 24px 48px rgba(15, 23, 42, 0.08);
            border: 1px solid rgba(226, 232, 240, 0.8);
            padding: 28px;
            width: 100%;
            max-width: 460px;
            position: relative;
        }

        .hero-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 18px 18px 0 0;
        }

        .panel-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 18px;
        }

        .panel-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--title);
        }

        .panel-status {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(16, 185, 129, 0.12);
            color: #059669;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 999px;
        }

        .panel-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .panel-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 14px;
            background: #F8FAFC;
            border-radius: 10px;
            border: 1px solid var(--line);
            transition: var(--transition-base);
        }

        .panel-item:hover {
            border-color: var(--brand-soft);
            background: var(--brand-light);
        }

        .panel-item-left {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .panel-item-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand);
        }

        .panel-item-dot.green {
            background: #10B981;
        }

        .panel-item-dot.amber {
            background: var(--amber2);
        }

        .panel-item-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--title);
        }

        .panel-item-meta {
            font-size: 12px;
            color: var(--weak);
        }

        .panel-item-time {
            font-size: 13px;
            font-weight: 600;
            color: var(--brand);
            white-space: nowrap;
        }

        .panel-footer {
            margin-top: 18px;
            padding-top: 16px;
            border-top: 1px dashed var(--line);
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--sub);
        }

        .panel-footer-strong {
            font-weight: 700;
            color: var(--brand);
            font-size: 18px;
        }

        /* Cards */
        .card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 232, 240, 0.8);
            padding: 28px;
            transition: var(--transition-smooth);
        }

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

        .card-top-line {
            position: relative;
            overflow: hidden;
        }

        .card-top-line::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .card-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 10px;
            line-height: 1.45;
        }

        .card-desc {
            font-size: 15px;
            line-height: 1.8;
            color: var(--body);
        }

        .card-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: var(--brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            font-size: 20px;
            margin-bottom: 16px;
            flex-shrink: 0;
        }

        .card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-img);
            margin-bottom: 18px;
        }

        .card-link {
            text-decoration: none;
            color: inherit;
            display: block;
            height: 100%;
        }

        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid rgba(226, 232, 240, 0.7);
            padding: 28px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
        }

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

        .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--brand);
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 15px;
            color: var(--sub);
            font-weight: 500;
        }

        /* Tag / Badge */
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            transition: var(--transition-base);
        }

        .tag-blue {
            background: rgba(37, 99, 235, 0.1);
            color: var(--brand);
        }

        .tag-green {
            background: rgba(16, 185, 129, 0.1);
            color: #059669;
        }

        .tag-amber {
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
        }

        .tag-cyan {
            background: rgba(14, 165, 233, 0.1);
            color: #0369A1;
        }

        /* Lists */
        .list-article {
            display: flex;
            gap: 18px;
            padding: 20px 0;
            border-bottom: 1px solid var(--line);
            transition: var(--transition-base);
        }

        .list-article:last-child {
            border-bottom: none;
        }

        .list-article:hover {
            padding-left: 6px;
        }

        .list-article-img {
            width: 140px;
            height: 90px;
            object-fit: cover;
            border-radius: 10px;
            flex-shrink: 0;
        }

        .list-article-body {
            flex: 1;
            min-width: 0;
        }

        .list-article-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.5;
            margin-bottom: 6px;
        }

        .list-article-summary {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .list-article-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 8px;
            font-size: 13px;
            color: var(--weak);
        }

        /* Grid */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .grid-5 {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

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

        .faq-item:hover {
            border-color: var(--brand-soft);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            background: #fff;
            text-align: left;
            transition: var(--transition-base);
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: var(--brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            font-size: 14px;
            font-weight: 700;
            transition: var(--transition-smooth);
        }

        .faq-icon.open {
            transform: rotate(45deg);
            background: var(--brand);
            color: #fff;
        }

        .faq-answer {
            display: none;
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--body);
            line-height: 1.9;
        }

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

        /* Testimonial */
        .testimonial-card {
            background: #fff;
            border-radius: var(--radius-card);
            border: 1px solid rgba(226, 232, 240, 0.7);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
        }

        .testimonial-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .testimonial-quote {
            font-size: 15px;
            line-height: 1.9;
            color: var(--body);
            margin-bottom: 16px;
            position: relative;
            padding-left: 16px;
            border-left: 3px solid var(--brand-soft);
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .testimonial-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
        }

        .testimonial-name {
            font-size: 15px;
            font-weight: 700;
            color: var(--title);
        }

        .testimonial-role {
            font-size: 13px;
            color: var(--weak);
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--brand) 0%, var(--brand-hover) 100%);
            border-radius: 22px;
            padding: 56px 48px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -50px;
            right: 120px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .cta-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .cta-desc {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 480px;
        }

        .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--brand);
            font-size: 16px;
            font-weight: 700;
            padding: 13px 26px;
            border-radius: var(--radius-btn);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand {
            max-width: 300px;
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }

        .footer-logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: #94A3B8;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

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

        .footer-link {
            color: #94A3B8;
            font-size: 14px;
            transition: var(--transition-base);
        }

        .footer-link:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            font-size: 13px;
            color: #64748B;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: #94A3B8;
            transition: var(--transition-base);
        }

        .footer-bottom-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            :root {
                --section-pad-y: 64px;
                --section-pad-y-mobile: 44px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 36px;
                padding: 48px 0 60px;
            }
            .hero-title {
                font-size: 32px;
            }
            .hero-content {
                max-width: 100%;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-5 {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-cta-desktop {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 24px;
            }
            .section-subtitle {
                font-size: 15px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-desc {
                font-size: 15px;
            }
            .grid-2,
            .grid-3,
            .grid-4,
            .grid-5 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-number {
                font-size: 28px;
            }
            .cta-section {
                padding: 40px 28px;
            }
            .cta-title {
                font-size: 22px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .list-article {
                flex-direction: column;
            }
            .list-article-img {
                width: 100%;
                height: 160px;
            }
            .panel-item {
                flex-direction: column;
                gap: 8px;
                align-items: flex-start;
            }
            .panel-item-time {
                align-self: flex-end;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            :root {
                --section-pad-y: 48px;
                --section-pad-y-mobile: 36px;
            }
            .hero-inner {
                padding: 36px 0 48px;
                gap: 24px;
            }
            .hero-title {
                font-size: 24px;
            }
            .hero-badge {
                font-size: 12px;
                padding: 5px 12px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary,
            .btn-outline {
                justify-content: center;
                text-align: center;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .card {
                padding: 20px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer {
                padding: 0 16px 16px;
                font-size: 14px;
            }
            .activity-bar-inner {
                font-size: 12px;
                gap: 6px;
            }
            .panel-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }
            .btn-white {
                justify-content: center;
                text-align: center;
                width: 100%;
            }
        }

/* roulang page: category2 */
:root {
            --brand: #2563EB;
            --brand-hover: #1D4ED8;
            --brand-light: #EFF6FF;
            --brand-soft: #DBEAFE;
            --cyan2: #0EA5E9;
            --cyan3: #22D3EE;
            --amber2: #F59E0B;
            --bg: #F6F8FC;
            --card: #FFFFFF;
            --title: #0F172A;
            --body: #475569;
            --sub: #64748B;
            --weak: #94A3B8;
            --line: #E2E8F0;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --radius-img: 12px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(15, 23, 42, 0.10);
            --shadow-btn: 0 4px 12px rgba(37, 99, 235, 0.18);
            --shadow-btn-hover: 0 8px 18px rgba(37, 99, 235, 0.26);
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            --max-w: 1200px;
            --section-pad-y: 64px;
            --section-pad-y-mobile: 44px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }
        .container {
            width: 100%;
            max-width: var(--max-w);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding-top: var(--section-pad-y);
            padding-bottom: var(--section-pad-y);
            position: relative;
        }
        .section-alt {
            background: #FFFFFF;
        }
        .section-tight {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--brand);
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-label::before {
            content: '';
            width: 22px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.35;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--sub);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 40px;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--line);
        }
        .activity-bar {
            background: var(--brand-light);
            border-bottom: 1px solid var(--brand-soft);
            font-size: 13px;
            color: var(--sub);
        }
        .activity-bar-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            flex-wrap: wrap;
            padding: 8px 0;
        }
        .dot-live {
            width: 8px;
            height: 8px;
            background: #10B981;
            border-radius: 50%;
            display: inline-block;
            animation: pulse-dot 1.6s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.4; }
        }
        .badge-countdown {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            letter-spacing: 0.02em;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .tag-green {
            background: rgba(16, 185, 129, 0.1);
            color: #047857;
        }
        .nav-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            padding: 14px 0;
        }
        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.03em;
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--title);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--brand);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--sub);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }
        .nav-link:hover {
            color: var(--brand);
            background: var(--brand-light);
        }
        .nav-link.active {
            color: var(--brand);
            background: var(--brand-light);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 18px;
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
            transition: var(--transition-base);
        }
        .nav-cta:hover {
            background: var(--brand-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
        }
        .hamburger span {
            width: 22px;
            height: 2px;
            background: var(--title);
            border-radius: 2px;
            transition: var(--transition-base);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: #fff;
            border-top: 1px solid var(--line);
            padding: 16px 24px;
            gap: 4px;
        }
        .mobile-menu .nav-link {
            display: block;
            padding: 12px 8px;
            font-size: 16px;
        }
        .mobile-menu .nav-cta {
            margin-top: 12px;
            width: 100%;
        }

        /* Cards & Buttons */
        .card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 232, 240, 0.8);
            transition: var(--transition-smooth);
            overflow: hidden;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 24px;
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-btn);
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--brand-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 11px 22px;
            background: #fff;
            color: var(--brand);
            font-weight: 600;
            font-size: 15px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--brand);
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: var(--brand-light);
            transform: translateY(-1px);
        }
        .tag-blue {
            background: rgba(37, 99, 235, 0.1);
            color: var(--brand);
        }
        .tag-amber {
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
        }
        .tag-cyan {
            background: rgba(14, 165, 233, 0.1);
            color: #0369A1;
        }

        /* Team Cards */
        .team-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .team-card {
            position: relative;
            padding: 24px;
        }
        .team-card .rank {
            position: absolute;
            top: 20px;
            right: 24px;
            font-size: 36px;
            font-weight: 800;
            color: var(--brand-light);
            line-height: 1;
        }
        .team-card .team-img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-radius: var(--radius-img);
            margin-bottom: 16px;
        }
        .team-card .team-name {
            font-size: 22px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 6px;
        }
        .team-card .team-region {
            font-size: 14px;
            color: var(--sub);
            margin-bottom: 12px;
        }
        .team-card .stats-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .stat-item {
            text-align: center;
        }
        .stat-item .stat-num {
            font-size: 20px;
            font-weight: 700;
            color: var(--brand);
        }
        .stat-item .stat-label {
            font-size: 12px;
            color: var(--weak);
        }

        /* Compare Bar */
        .compare-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 18px;
        }
        .compare-bar .bar-label {
            width: 100px;
            font-size: 14px;
            font-weight: 600;
            color: var(--title);
            flex-shrink: 0;
        }
        .compare-bar .bar-track {
            flex: 1;
            height: 10px;
            background: #E2E8F0;
            border-radius: 999px;
            overflow: hidden;
        }
        .compare-bar .bar-fill {
            height: 100%;
            border-radius: 999px;
            background: linear-gradient(90deg, var(--brand), var(--cyan2));
        }
        .compare-bar .bar-value {
            width: 40px;
            font-size: 14px;
            font-weight: 700;
            color: var(--brand);
            text-align: right;
        }

        /* Table */
        .data-table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .data-table th,
        .data-table td {
            padding: 16px 20px;
            text-align: left;
            font-size: 15px;
            border-bottom: 1px solid var(--line);
        }
        .data-table th {
            background: #F8FAFC;
            font-weight: 600;
            color: var(--title);
            font-size: 14px;
            letter-spacing: 0.02em;
        }
        .data-table tr:last-child td {
            border-bottom: none;
        }
        .data-table tr:hover td {
            background: #FAFBFF;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            background: #fff;
            text-align: left;
            transition: var(--transition-base);
        }
        .faq-question:hover {
            background: var(--brand-light);
        }
        .faq-question .icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--brand-light);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            transition: var(--transition-base);
        }
        .faq-item.active .faq-question .icon {
            transform: rotate(45deg);
            background: var(--brand);
            color: #fff;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 200px;
            padding-bottom: 20px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--body);
            line-height: 1.8;
        }

        /* CTA Form */
        .cta-box {
            background: linear-gradient(135deg, #FFFFFF 0%, #F5F8FF 100%);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            text-align: center;
            box-shadow: var(--shadow-card);
        }
        .cta-box .form-row {
            display: flex;
            gap: 12px;
            max-width: 500px;
            margin: 24px auto 0;
        }
        .cta-box input[type="email"] {
            flex: 1;
            padding: 12px 16px;
            border: 1px solid var(--line);
            border-radius: var(--radius-btn);
            font-size: 15px;
            color: var(--title);
            outline: none;
            transition: var(--transition-base);
        }
        .cta-box input[type="email"]:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 56px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }
        .footer-logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #94A3B8;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-link {
            font-size: 14px;
            color: #94A3B8;
            transition: var(--transition-base);
        }
        .footer-link:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(148, 163, 184, 0.2);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: #94A3B8;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: #94A3B8;
        }
        .footer-bottom-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .nav-links {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.show {
                display: flex;
            }
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 24px;
            }
            .team-grid {
                grid-template-columns: 1fr;
            }
            .cta-box {
                padding: 32px 20px;
            }
            .cta-box .form-row {
                flex-direction: column;
            }
            .data-table th,
            .data-table td {
                padding: 12px 10px;
                font-size: 13px;
            }
            .compare-bar .bar-label {
                width: 70px;
                font-size: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .activity-bar-inner {
                font-size: 12px;
                gap: 6px;
            }
            .badge-countdown {
                font-size: 11px;
                padding: 2px 8px;
            }
            .nav-row {
                padding: 10px 0;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 16px;
            }
        }

/* roulang page: category1 */
:root {
            --brand: #2563EB;
            --brand-hover: #1D4ED8;
            --brand-light: #EFF6FF;
            --brand-soft: #DBEAFE;
            --cyan2: #0EA5E9;
            --cyan3: #22D3EE;
            --amber2: #F59E0B;
            --green: #10B981;
            --bg: #F6F8FC;
            --card: #FFFFFF;
            --title: #0F172A;
            --body: #475569;
            --sub: #64748B;
            --weak: #94A3B8;
            --line: #E2E8F0;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --radius-img: 12px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(15, 23, 42, 0.10);
            --shadow-btn: 0 4px 12px rgba(37, 99, 235, 0.18);
            --shadow-btn-hover: 0 8px 18px rgba(37, 99, 235, 0.26);
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            --max-w: 1200px;
            --section-pad-y: 72px;
            --section-pad-y-mobile: 48px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        .container {
            width: 100%;
            max-width: var(--max-w);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-alt {
            background: #FFFFFF;
        }

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

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--brand);
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-label::before {
            content: '';
            width: 22px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.4;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--sub);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 36px;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--line);
        }

        .activity-bar {
            background: linear-gradient(90deg, #EFF6FF 0%, #F0FDFA 50%, #FFFBEB 100%);
            border-bottom: 1px solid var(--line);
            font-size: 13px;
            color: var(--sub);
            padding: 6px 0;
        }

        .activity-bar-inner {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: flex-start;
        }

        .dot-live {
            width: 8px;
            height: 8px;
            background: var(--green);
            border-radius: 50%;
            display: inline-block;
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4);
            }
            50% {
                opacity: 0.7;
                box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
            }
        }

        .activity-bar .badge-countdown {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            letter-spacing: 0.02em;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 2px 10px;
            border-radius: var(--radius-tag);
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .tag-green {
            background: rgba(16, 185, 129, 0.10);
            color: #047857;
        }

        .tag-blue {
            background: rgba(37, 99, 235, 0.10);
            color: var(--brand);
        }

        .tag-amber {
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
        }

        .nav-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 14px 0;
        }

        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.03em;
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--title);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-wrap: wrap;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--sub);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--brand);
            background: var(--brand-light);
        }

        .nav-link.active {
            color: var(--brand);
            background: var(--brand-light);
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            background: var(--brand);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            white-space: nowrap;
            box-shadow: var(--shadow-btn);
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--brand-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
            color: #fff;
        }

        .nav-cta:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.4);
            outline-offset: 2px;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition-base);
        }

        .hamburger:hover {
            background: var(--brand-light);
        }

        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--title);
            border-radius: 2px;
            transition: var(--transition-base);
            display: block;
        }

        .hamburger[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .hamburger[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-menu {
            display: none;
            background: #fff;
            border-top: 1px solid var(--line);
            padding: 12px 24px 20px;
            flex-direction: column;
            gap: 6px;
        }

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

        .mobile-menu .nav-link {
            display: block;
            padding: 10px 14px;
            font-size: 16px;
        }

        .mobile-menu .nav-cta {
            margin-top: 8px;
            justify-content: center;
            text-align: center;
        }

        /* Page Hero - 分类页头部 */
        .page-hero {
            padding: 48px 0 32px;
            background: linear-gradient(180deg, #fff 0%, var(--bg) 100%);
            border-bottom: 1px solid var(--line);
        }

        .page-hero-inner {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--weak);
        }

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

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

        .breadcrumb .sep {
            color: var(--weak);
        }

        .page-hero h1 {
            font-size: 34px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.35;
            letter-spacing: -0.01em;
        }

        .page-hero-desc {
            font-size: 16px;
            color: var(--sub);
            line-height: 1.8;
            max-width: 680px;
        }

        /* Filter Bar */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            padding: 16px 0;
            border-bottom: 1px solid var(--line);
            margin-bottom: 28px;
        }

        .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--sub);
            flex-shrink: 0;
        }

        .filter-btn {
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--sub);
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-tag);
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .filter-btn:hover {
            border-color: var(--brand);
            color: var(--brand);
            background: var(--brand-light);
        }

        .filter-btn.active {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
            font-weight: 600;
            box-shadow: var(--shadow-btn);
        }

        .filter-btn:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.4);
            outline-offset: 2px;
        }

        /* Schedule List */
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .schedule-card {
            display: grid;
            grid-template-columns: 140px 1fr 180px;
            gap: 20px;
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 20px 24px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
            align-items: center;
        }

        .schedule-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: var(--brand-soft);
        }

        .schedule-date {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 4px;
        }

        .schedule-date-main {
            font-size: 18px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.3;
        }

        .schedule-date-sub {
            font-size: 13px;
            color: var(--weak);
        }

        .schedule-info {
            display: flex;
            flex-direction: column;
            gap: 6px;
            min-width: 0;
        }

        .schedule-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.4;
            margin-bottom: 2px;
        }

        .schedule-matchup {
            font-size: 14px;
            color: var(--sub);
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .schedule-matchup .vs {
            color: var(--weak);
            font-weight: 600;
            font-size: 13px;
        }

        .schedule-tags {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .schedule-cover {
            width: 100%;
            height: 88px;
            object-fit: cover;
            border-radius: var(--radius-img);
            border: 1px solid var(--line);
            transition: var(--transition-base);
        }

        .schedule-card:hover .schedule-cover {
            border-color: var(--brand-soft);
        }

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

        .data-board-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
        }

        .data-board-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .data-board-value {
            font-size: 32px;
            font-weight: 700;
            color: var(--brand);
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 6px;
        }

        .data-board-label {
            font-size: 14px;
            color: var(--sub);
            font-weight: 500;
        }

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

        .topic-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
        }

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

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

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

        .topic-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 6px;
            line-height: 1.4;
        }

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

        /* Guide Steps */
        .guide-steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .guide-step {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            position: relative;
        }

        .guide-step:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .guide-step-num {
            position: absolute;
            top: 14px;
            right: 18px;
            font-size: 40px;
            font-weight: 700;
            color: var(--brand-soft);
            line-height: 1;
            user-select: none;
        }

        .guide-step-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .guide-step-desc {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 840px;
        }

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

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

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            text-align: left;
            background: transparent;
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            font-family: inherit;
        }

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

        .faq-question:focus-visible {
            outline: 3px solid rgba(37, 99, 235, 0.4);
            outline-offset: -2px;
        }

        .faq-question .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--brand-light);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 600;
            transition: var(--transition-base);
            line-height: 1;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--brand);
            color: #fff;
        }

        .faq-answer {
            padding: 0 20px 18px;
            font-size: 15px;
            color: var(--body);
            line-height: 1.8;
            display: none;
        }

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

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, #1E3A5F 0%, #1D4ED8 40%, #0EA5E9 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: 10%;
            width: 300px;
            height: 300px;
            background: rgba(34, 211, 238, 0.08);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .cta-content {
            flex: 1;
            min-width: 280px;
        }

        .cta-title {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .cta-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            max-width: 520px;
        }

        .cta-buttons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            flex-shrink: 0;
        }

        .cta-btn-primary {
            padding: 12px 24px;
            background: #fff;
            color: var(--brand);
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        .cta-btn-primary:hover {
            background: #F0F4FF;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
        }

        .cta-btn-secondary {
            padding: 12px 24px;
            background: transparent;
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .cta-btn-secondary:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }

        .cta-btn-primary:focus-visible,
        .cta-btn-secondary:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.6);
            outline-offset: 2px;
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 48px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(226, 232, 240, 0.12);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            font-weight: 700;
        }

        .footer-logo-text {
            font-size: 19px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-link {
            font-size: 14px;
            color: #94A3B8;
            transition: var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .footer-link:hover {
            color: #fff;
            transform: translateX(2px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding: 18px 0 22px;
            font-size: 13px;
            color: #64748B;
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: #94A3B8;
            transition: var(--transition-base);
        }

        .footer-bottom-links a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .data-board {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

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

            .schedule-card {
                grid-template-columns: 110px 1fr 140px;
                gap: 14px;
                padding: 16px 18px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-cta-desktop {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .mobile-menu {
                display: none;
            }

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

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

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

            .schedule-card {
                grid-template-columns: 1fr;
                gap: 12px;
                padding: 16px;
            }

            .schedule-cover {
                height: 120px;
            }

            .guide-steps {
                grid-template-columns: 1fr;
            }

            .topic-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .data-board {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

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

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

            .cta-inner {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-title {
                font-size: 22px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

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

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

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

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

            .data-board-value {
                font-size: 24px;
            }

            .filter-btn {
                padding: 6px 12px;
                font-size: 12px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

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

            .activity-bar {
                font-size: 12px;
            }

            .activity-bar-inner {
                gap: 6px;
            }

            .badge-countdown {
                font-size: 11px !important;
                padding: 2px 8px !important;
            }
        }

/* roulang page: category3 */
:root {
            --brand: #2563EB;
            --brand-hover: #1D4ED8;
            --brand-light: #EFF6FF;
            --brand-soft: #DBEAFE;
            --cyan2: #0EA5E9;
            --cyan3: #22D3EE;
            --amber2: #F59E0B;
            --bg: #F6F8FC;
            --card: #FFFFFF;
            --title: #0F172A;
            --body: #475569;
            --sub: #64748B;
            --weak: #94A3B8;
            --line: #E2E8F0;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --radius-img: 12px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(15, 23, 42, 0.10);
            --shadow-btn: 0 4px 12px rgba(37, 99, 235, 0.18);
            --shadow-btn-hover: 0 8px 18px rgba(37, 99, 235, 0.26);
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            --max-w: 1200px;
            --section-pad-y: 48px;
            --section-pad-y-mobile: 36px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }
        .container {
            width: 100%;
            max-width: var(--max-w);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding-top: var(--section-pad-y);
            padding-bottom: var(--section-pad-y);
            position: relative;
        }
        .section-alt {
            background: #FFFFFF;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--brand);
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-label::before {
            content: '';
            width: 22px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.35;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--sub);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 36px;
        }
        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--line);
        }
        .activity-bar {
            background: #FFFFFF;
            border-bottom: 1px solid var(--line);
            padding: 6px 0;
        }
        .activity-bar-inner {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--sub);
        }
        .dot-live {
            width: 8px;
            height: 8px;
            background: #10B981;
            border-radius: 50%;
            display: inline-block;
            animation: pulse 1.8s infinite;
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.18);
        }
        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.18);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(16, 185, 129, 0.07);
            }
        }
        .activity-bar .badge-countdown {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            letter-spacing: 0.02em;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            letter-spacing: 0.02em;
        }
        .tag-green {
            background: rgba(16, 185, 129, 0.10);
            color: #047857;
        }
        .tag-blue {
            background: rgba(37, 99, 235, 0.10);
            color: #1D4ED8;
        }
        .tag-amber {
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
        }
        .nav-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            padding: 14px 0;
        }
        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.03em;
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--title);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--brand);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--sub);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }
        .nav-link:hover {
            color: var(--brand);
            background: var(--brand-light);
        }
        .nav-link.active {
            color: var(--brand);
            background: var(--brand-light);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
            flex-shrink: 0;
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
        }
        .nav-cta:hover {
            background: var(--brand-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
            color: #fff;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            background: transparent;
            border: none;
            cursor: pointer;
        }
        .hamburger span {
            width: 22px;
            height: 2px;
            background: var(--title);
            border-radius: 2px;
            transition: var(--transition-base);
        }
        .hamburger[aria-expanded="true"] span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .hamburger[aria-expanded="true"] span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }
        .mobile-menu {
            display: none;
            padding: 0 24px 16px;
            border-top: 1px solid var(--line);
            background: #fff;
        }
        .mobile-menu.open {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu .nav-link {
            display: block;
            padding: 12px 14px;
            font-size: 16px;
        }
        .mobile-menu .nav-cta {
            margin-top: 10px;
            justify-content: center;
            width: 100%;
        }
        /* Page Header */
        .page-header {
            background: linear-gradient(180deg, #FFFFFF 0%, var(--brand-light) 100%);
            border-bottom: 1px solid var(--line);
            padding: 56px 0 44px;
        }
        .page-header-inner {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .page-header-text {
            flex: 1;
            min-width: 280px;
            max-width: 720px;
        }
        .page-header-title {
            font-size: 36px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.3;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }
        .page-header-desc {
            font-size: 16px;
            color: var(--sub);
            line-height: 1.85;
        }
        .page-header-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-top: 16px;
        }
        .page-header-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--sub);
            background: #fff;
            padding: 6px 14px;
            border-radius: var(--radius-tag);
            border: 1px solid var(--line);
        }
        /* News Layout */
        .news-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }
        .news-main-column {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .news-sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
            position: sticky;
            top: 110px;
        }
        .news-headline-card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 232, 240, 0.8);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .news-headline-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .news-headline-img {
            width: 100%;
            aspect-ratio: 16/8;
            object-fit: cover;
            display: block;
        }
        .news-headline-body {
            padding: 24px 28px 28px;
        }
        .news-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(37, 99, 235, 0.10);
            color: #1D4ED8;
            font-weight: 600;
            font-size: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-tag);
            margin-bottom: 12px;
        }
        .news-headline-title {
            font-size: 22px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.45;
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }
        .news-headline-excerpt {
            font-size: 15px;
            color: var(--body);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .news-meta-line {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--weak);
        }
        .news-meta-line .news-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 232, 240, 0.8);
            overflow: hidden;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .news-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }
        .news-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card-title {
            font-size: 17px;
            font-weight: 600;
            color: var(--title);
            line-height: 1.5;
            margin-bottom: 8px;
            letter-spacing: -0.005em;
        }
        .news-card-excerpt {
            font-size: 14px;
            color: var(--body);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .news-meta-line {
            border-top: 1px solid var(--line);
            padding-top: 12px;
        }
        /* Sidebar widgets */
        .sidebar-widget {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 232, 240, 0.8);
            padding: 22px 24px;
        }
        .sidebar-widget-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-widget-title::before {
            content: '';
            width: 4px;
            height: 18px;
            background: var(--brand);
            border-radius: 2px;
        }
        .widget-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .widget-list li a {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: var(--body);
            line-height: 1.6;
            transition: var(--transition-base);
        }
        .widget-list li a:hover {
            color: var(--brand);
        }
        .widget-list li a .widget-bullet {
            width: 6px;
            height: 6px;
            background: var(--brand);
            border-radius: 50%;
            margin-top: 8px;
            flex-shrink: 0;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud .tag-capsule {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            font-size: 13px;
            font-weight: 500;
            color: var(--body);
            background: var(--bg);
            border: 1px solid var(--line);
            border-radius: var(--radius-tag);
            transition: var(--transition-base);
        }
        .tag-cloud .tag-capsule:hover {
            color: var(--brand);
            border-color: var(--brand);
            background: var(--brand-light);
        }
        /* Subscribe */
        .subscribe-box {
            background: linear-gradient(135deg, #FFFFFF 0%, var(--brand-light) 100%);
            border: 1px solid rgba(37, 99, 235, 0.15);
            border-radius: var(--radius-card);
            padding: 24px;
            text-align: left;
        }
        .subscribe-box .subscribe-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 8px;
        }
        .subscribe-box .subscribe-desc {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .subscribe-form {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 160px;
            padding: 10px 16px;
            border: 1px solid var(--line);
            border-radius: var(--radius-btn);
            font-size: 14px;
            color: var(--title);
            background: #fff;
            transition: var(--transition-base);
            outline: none;
        }
        .subscribe-form input:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }
        .subscribe-form button {
            padding: 10px 20px;
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            border-radius: var(--radius-btn);
            border: none;
            cursor: pointer;
            transition: var(--transition-base);
            box-shadow: var(--shadow-btn);
        }
        .subscribe-form button:hover {
            background: var(--brand-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-1px);
        }
        /* Category Entry */
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }
        .category-entry {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(226, 232, 240, 0.8);
            padding: 20px 18px;
            text-align: center;
            transition: var(--transition-base);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .category-entry:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(37, 99, 235, 0.3);
        }
        .category-entry .entry-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: var(--brand);
            margin-bottom: 4px;
        }
        .category-entry .entry-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--title);
        }
        .category-entry .entry-desc {
            font-size: 12px;
            color: var(--weak);
            line-height: 1.5;
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 820px;
        }
        .faq-item {
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid var(--line);
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.3);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            cursor: pointer;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition-base);
        }
        .faq-question:hover {
            color: var(--brand);
        }
        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--brand-light);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 600;
            flex-shrink: 0;
            transition: var(--transition-base);
        }
        .faq-item.open .faq-icon {
            background: var(--brand);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            background: #F9FAFB;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--body);
            line-height: 1.8;
            border-top: 1px solid var(--line);
            padding-top: 16px;
        }
        /* CTA */
        .cta-band {
            background: linear-gradient(135deg, var(--brand) 0%, #1E40AF 100%);
            border-radius: var(--radius-card);
            padding: 48px 40px;
            text-align: center;
            color: #fff;
            overflow: hidden;
            position: relative;
        }
        .cta-band::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 350px;
            height: 350px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }
        .cta-band::after {
            content: '';
            position: absolute;
            bottom: -40%;
            left: -10%;
            width: 250px;
            height: 250px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            pointer-events: none;
        }
        .cta-band .cta-inner {
            position: relative;
            z-index: 1;
            max-width: 600px;
            margin: 0 auto;
        }
        .cta-band .cta-title {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .cta-band .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.82);
            line-height: 1.75;
            margin-bottom: 28px;
        }
        .cta-band .cta-btn-group {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .cta-band .btn-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            color: var(--brand);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            transition: var(--transition-base);
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
        }
        .cta-band .btn-white:hover {
            background: #F0F4FF;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
        }
        .cta-band .btn-outline-white {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            border: 2px solid rgba(255, 255, 255, 0.7);
            transition: var(--transition-base);
            cursor: pointer;
        }
        .cta-band .btn-outline-white:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }
        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            margin-top: auto;
            padding: 56px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            font-weight: 700;
        }
        .footer-logo-text {
            font-size: 19px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }
        .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.75;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-link {
            font-size: 14px;
            color: #94A3B8;
            transition: var(--transition-base);
        }
        .footer-link:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            font-size: 13px;
            color: #64748B;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: #94A3B8;
            transition: var(--transition-base);
        }
        .footer-bottom-links a:hover {
            color: #fff;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .news-layout {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .category-entry-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta-desktop {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .page-header-title {
                font-size: 28px;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-sidebar {
                grid-template-columns: 1fr;
            }
            .category-entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-headline-body {
                padding: 18px 20px 22px;
            }
            .news-headline-title {
                font-size: 18px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section {
                padding-top: var(--section-pad-y-mobile);
                padding-bottom: var(--section-pad-y-mobile);
            }
            .page-header {
                padding: 36px 0 28px;
            }
            .page-header-title {
                font-size: 24px;
            }
            .section-title {
                font-size: 22px;
            }
            .cta-band {
                padding: 32px 20px;
            }
            .cta-band .cta-title {
                font-size: 21px;
            }
            .category-entry-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .activity-bar-inner {
                font-size: 12px;
                gap: 6px;
            }
            .activity-bar .badge-countdown {
                font-size: 11px;
                padding: 2px 8px;
            }
        }

/* roulang page: category4 */
:root {
            --brand: #2563EB;
            --brand-hover: #1D4ED8;
            --brand-light: #EFF6FF;
            --brand-soft: #DBEAFE;
            --cyan2: #0EA5E9;
            --cyan3: #22D3EE;
            --amber2: #F59E0B;
            --bg: #F6F8FC;
            --card: #FFFFFF;
            --title: #0F172A;
            --body: #475569;
            --sub: #64748B;
            --weak: #94A3B8;
            --line: #E2E8F0;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --radius-img: 12px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(15, 23, 42, 0.10);
            --shadow-btn: 0 4px 12px rgba(37, 99, 235, 0.18);
            --shadow-btn-hover: 0 8px 18px rgba(37, 99, 235, 0.26);
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            --max-w: 1200px;
            --section-pad-y: 88px;
            --section-pad-y-mobile: 52px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }

        .container {
            width: 100%;
            max-width: var(--max-w);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        .section-alt {
            background: #FFFFFF;
        }

        .section-tight {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--brand);
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-label::before {
            content: '';
            width: 22px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.35;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 17px;
            color: var(--sub);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 40px;
        }

        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--line);
        }

        .activity-bar {
            background: linear-gradient(90deg, var(--brand-light) 0%, #F0F9FF 100%);
            padding: 8px 0;
            border-bottom: 1px solid rgba(226, 232, 240, 0.6);
        }

        .activity-bar-inner {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--sub);
            font-weight: 500;
        }

        .dot-live {
            width: 8px;
            height: 8px;
            background: #10B981;
            border-radius: 50%;
            display: inline-block;
            animation: pulse-dot 2s infinite;
            flex-shrink: 0;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(0.8); }
        }

        .activity-bar .badge-countdown {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            letter-spacing: 0.02em;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
        }

        .tag-green {
            background: rgba(16, 185, 129, 0.1);
            color: #059669;
        }

        .nav-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            padding: 14px 0;
        }

        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.03em;
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--title);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

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

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--sub);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--brand);
            background: var(--brand-light);
        }

        .nav-link.active {
            color: var(--brand);
            background: var(--brand-light);
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            font-size: 14px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-cta:hover {
            background: var(--brand-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
            color: #fff;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            transition: var(--transition-base);
        }

        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--title);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .hamburger:hover {
            background: var(--brand-light);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            padding: 12px 24px 20px;
            gap: 4px;
            background: #fff;
            border-top: 1px solid var(--line);
        }

        .mobile-menu .nav-link {
            display: block;
            padding: 12px 14px;
            border-radius: 8px;
        }

        .mobile-menu .nav-cta {
            margin-top: 12px;
            width: 100%;
            text-align: center;
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--sub);
            flex-wrap: wrap;
            margin-bottom: 12px;
        }

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

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

        .breadcrumb-sep {
            color: var(--weak);
            user-select: none;
        }

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

        /* Page header */
        .page-header {
            padding-top: 56px;
            padding-bottom: 40px;
            background: linear-gradient(180deg, #FFFFFF 0%, var(--bg) 100%);
            border-bottom: 1px solid rgba(226, 232, 240, 0.5);
        }

        .page-header-inner {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .page-header-content {
            flex: 1;
            min-width: 280px;
        }

        .page-header h1 {
            font-size: 36px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

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

        .page-header-meta {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
            margin-top: 16px;
        }

        /* Featured article */
        .featured-card {
            display: grid;
            grid-template-columns: 1.1fr 1fr;
            gap: 32px;
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-smooth);
        }

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

        .featured-image {
            min-height: 320px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .featured-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(180deg, transparent 0%, rgba(15, 23, 42, 0.5) 100%);
            pointer-events: none;
        }

        .featured-badge {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--amber2);
            color: #fff;
            font-weight: 600;
            font-size: 12px;
            padding: 5px 14px;
            border-radius: var(--radius-tag);
            z-index: 1;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.35);
        }

        .featured-body {
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .featured-excerpt {
            font-size: 15px;
            color: var(--body);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .featured-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            font-size: 13px;
            color: var(--weak);
        }

        .featured-meta .tag {
            background: var(--brand-light);
            color: var(--brand);
        }

        /* Article list */
        .article-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 32px;
        }

        .article-card {
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

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

        .article-image {
            aspect-ratio: 16 / 9;
            object-fit: cover;
            width: 100%;
        }

        .article-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            background: var(--brand-light);
            color: var(--brand);
            font-size: 12px;
            font-weight: 500;
            border-radius: var(--radius-tag);
            margin-bottom: 12px;
            align-self: flex-start;
        }

        .article-tag.amber {
            background: rgba(245, 158, 11, 0.1);
            color: #B45309;
        }

        .article-tag.cyan {
            background: rgba(14, 165, 233, 0.1);
            color: #0369A1;
        }

        .article-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--title);
            line-height: 1.5;
            margin-bottom: 8px;
        }

        .article-excerpt {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .article-meta {
            font-size: 13px;
            color: var(--weak);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .text-link {
            color: var(--brand);
            font-weight: 500;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: var(--transition-base);
        }

        .text-link:hover {
            color: var(--brand-hover);
            gap: 8px;
        }

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

        .topic-card {
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid rgba(226, 232, 240, 0.8);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: var(--transition-smooth);
        }

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

        .topic-image {
            aspect-ratio: 16 / 10;
            object-fit: cover;
            width: 100%;
        }

        .topic-body {
            padding: 18px 20px 20px;
        }

        .topic-name {
            font-size: 17px;
            font-weight: 600;
            color: var(--title);
            margin-bottom: 6px;
        }

        .topic-desc {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.6;
        }

        /* Tag cloud */
        .tags-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-tag);
            font-size: 14px;
            font-weight: 500;
            color: var(--sub);
            transition: var(--transition-base);
            cursor: pointer;
        }

        .tag-pill:hover {
            background: var(--brand-light);
            border-color: var(--brand-soft);
            color: var(--brand);
        }

        /* Subscribe */
        .subscribe-box {
            background: linear-gradient(135deg, #EFF6FF 0%, #F8FAFC 100%);
            border: 1px solid rgba(226, 232, 240, 0.9);
            border-radius: var(--radius-card);
            padding: 40px 36px;
            display: grid;
            grid-template-columns: 1.3fr 1fr;
            gap: 32px;
            align-items: center;
        }

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

        .subscribe-input {
            flex: 1;
            min-width: 200px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-btn);
            padding: 12px 16px;
            font-size: 14px;
            color: var(--title);
            outline: none;
            transition: var(--transition-base);
        }

        .subscribe-input:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            box-shadow: var(--shadow-btn);
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .btn-primary:hover {
            background: var(--brand-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            color: var(--brand);
            font-weight: 600;
            font-size: 15px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            border: 1.5px solid var(--brand);
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .btn-secondary:hover {
            background: var(--brand-light);
            color: var(--brand-hover);
            transform: translateY(-2px);
        }

        /* Category entries */
        .cat-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 18px;
        }

        .cat-entry {
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: var(--shadow-card);
            padding: 24px 18px;
            text-align: center;
            transition: var(--transition-smooth);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
        }

        .cat-entry:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--brand-soft);
        }

        .cat-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--brand);
        }

        .cat-name {
            font-size: 15px;
            font-weight: 600;
            color: var(--title);
        }

        .cat-desc {
            font-size: 12px;
            color: var(--weak);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 850px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card);
            border-radius: var(--radius-card);
            border: 1px solid rgba(226, 232, 240, 0.8);
            box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
            overflow: hidden;
            transition: var(--transition-base);
        }

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

        .faq-item summary {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--weak);
            transition: var(--transition-base);
            flex-shrink: 0;
        }

        .faq-item[open] summary::after {
            content: '−';
            color: var(--brand);
        }

        .faq-item[open] summary {
            color: var(--brand);
        }

        .faq-answer {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--body);
            line-height: 1.8;
        }

        /* CTA section */
        .cta-section {
            background: linear-gradient(135deg, #EFF6FF 0%, #F0F9FF 100%);
            border-radius: 20px;
            padding: 48px 40px;
            text-align: center;
            border: 1px solid rgba(226, 232, 240, 0.9);
            box-shadow: var(--shadow-card);
        }

        .cta-section .section-title {
            margin-bottom: 10px;
        }

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

        .cta-buttons {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #94A3B8;
            padding-top: 56px;
            padding-bottom: 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(148, 163, 184, 0.15);
        }

        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 9px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 17px;
            font-weight: 700;
        }

        .footer-logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            max-width: 360px;
            color: #94A3B8;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #E2E8F0;
            margin-bottom: 16px;
        }

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

        .footer-link {
            font-size: 14px;
            color: #94A3B8;
            transition: var(--transition-base);
        }

        .footer-link:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            font-size: 13px;
            color: #64748B;
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: #94A3B8;
            transition: var(--transition-base);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-cta-desktop {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu.open {
                display: flex;
            }
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-image {
                min-height: 240px;
            }
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cat-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .subscribe-box {
                grid-template-columns: 1fr;
                padding: 32px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .page-header h1 {
                font-size: 28px;
            }
            .section-title {
                font-size: 24px;
            }
            .article-grid {
                grid-template-columns: 1fr;
                margin-top: 24px;
            }
            .topics-grid {
                grid-template-columns: 1fr;
            }
            .cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .cta-section {
                padding: 36px 24px;
            }
        }

        @media (max-width: 520px) {
            .cat-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .featured-body {
                padding: 22px 20px 24px;
            }
            .featured-title {
                font-size: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .activity-bar-inner {
                justify-content: center;
                text-align: center;
            }
        }

/* roulang page: category5 */
:root {
            --brand: #2563EB;
            --brand-hover: #1D4ED8;
            --brand-light: #EFF6FF;
            --brand-soft: #DBEAFE;
            --cyan2: #0EA5E9;
            --cyan3: #22D3EE;
            --amber2: #F59E0B;
            --bg: #F6F8FC;
            --card: #FFFFFF;
            --title: #0F172A;
            --body: #475569;
            --sub: #64748B;
            --weak: #94A3B8;
            --line: #E2E8F0;
            --radius-card: 14px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --radius-img: 12px;
            --shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
            --shadow-card-hover: 0 16px 32px rgba(15, 23, 42, 0.10);
            --shadow-btn: 0 4px 12px rgba(37, 99, 235, 0.18);
            --shadow-btn-hover: 0 8px 18px rgba(37, 99, 235, 0.26);
            --transition-base: all 0.22s ease;
            --transition-smooth: all 0.32s cubic-bezier(0.4, 0, 0.2, 1);
            --max-w: 1200px;
            --section-pad-y: 64px;
            --section-pad-y-mobile: 44px;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Inter', 'Roboto', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--body);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }
        button, input, textarea, select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            transition: var(--transition-base);
        }
        .container {
            width: 100%;
            max-width: var(--max-w);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding-top: var(--section-pad-y);
            padding-bottom: var(--section-pad-y);
            position: relative;
        }
        .section-alt {
            background: #FFFFFF;
        }
        .section-tight {
            padding-top: 40px;
            padding-bottom: 40px;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--brand);
            text-transform: uppercase;
            margin-bottom: 14px;
        }
        .section-label::before {
            content: '';
            width: 22px;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.35;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--sub);
            line-height: 1.8;
            max-width: 720px;
            margin-bottom: 40px;
        }
        /* Header / Nav */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--line);
        }
        .activity-bar {
            background: linear-gradient(90deg, #EFF6FF 0%, #F8FAFC 50%, #ECFEFF 100%);
            border-bottom: 1px solid #E0F2FE;
            font-size: 13px;
            padding: 6px 0;
            color: var(--sub);
        }
        .activity-bar-inner {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .dot-live {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: #22C55E;
            border-radius: 50%;
            box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
            animation: pulse-dot 1.8s infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.6; transform: scale(1.4); }
        }
        .activity-bar .badge-countdown {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 12px;
            letter-spacing: 0.02em;
        }
        .nav-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
            padding: 14px 0;
        }
        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: -0.03em;
            box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: var(--title);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .logo-text span {
            color: var(--brand);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-link {
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--sub);
            border-radius: 8px;
            white-space: nowrap;
            transition: var(--transition-base);
        }
        .nav-link:hover {
            color: var(--brand);
            background: var(--brand-light);
        }
        .nav-link.active {
            color: var(--brand);
            background: var(--brand-light);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand);
            color: #fff;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            box-shadow: var(--shadow-btn);
            transition: var(--transition-base);
        }
        .nav-cta:hover {
            background: var(--brand-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 4px;
            padding: 8px;
            border-radius: 8px;
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--title);
            border-radius: 2px;
            transition: var(--transition-base);
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            padding: 0 24px 16px;
            background: #fff;
            border-top: 1px solid var(--line);
        }
        .mobile-menu .nav-link {
            padding: 10px 12px;
        }
        .mobile-menu .nav-cta {
            margin-top: 8px;
            text-align: center;
        }
        /* Wiki specific */
        .wiki-hero {
            background: linear-gradient(135deg, #FFFFFF 0%, #EFF6FF 100%);
            border-bottom: 1px solid var(--line);
            padding-top: 56px;
            padding-bottom: 56px;
        }
        .wiki-hero-title {
            font-size: 36px;
            font-weight: 700;
            color: var(--title);
            letter-spacing: -0.01em;
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .wiki-hero-desc {
            font-size: 17px;
            color: var(--sub);
            line-height: 1.8;
            max-width: 820px;
        }
        .wiki-hero-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }
        .wiki-hero-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .wiki-hero-visual img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }
        .wiki-hero-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px;
            background: linear-gradient(0deg, rgba(15,23,42,0.75) 0%, rgba(15,23,42,0) 100%);
            color: #fff;
            font-size: 14px;
            font-weight: 500;
        }
        .term-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .term-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: var(--brand-soft);
        }
        .term-icon {
            width: 40px;
            height: 40px;
            background: var(--brand-light);
            color: var(--brand);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
        }
        .term-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--title);
        }
        .term-desc {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            padding: 5px 12px;
            border-radius: var(--radius-tag);
            white-space: nowrap;
        }
        .tag-green {
            background: rgba(16, 185, 129, 0.1);
            color: #047857;
        }
        .tag-blue {
            background: rgba(37, 99, 235, 0.1);
            color: var(--brand);
        }
        .tag-amber {
            background: rgba(245, 158, 11, 0.12);
            color: #B45309;
        }
        .tag-cyan {
            background: rgba(14, 165, 233, 0.1);
            color: #0369A1;
        }
        .rule-item {
            display: flex;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid var(--line);
            align-items: flex-start;
        }
        .rule-item:last-child {
            border-bottom: none;
        }
        .rule-num {
            width: 32px;
            height: 32px;
            background: var(--brand);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 15px;
            flex-shrink: 0;
        }
        .rule-content h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 6px;
        }
        .rule-content p {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
        }
        .guide-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            height: 100%;
        }
        .guide-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .guide-step {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: var(--brand-light);
            color: var(--brand);
            border-radius: 50%;
            font-weight: 700;
            font-size: 14px;
            margin-bottom: 12px;
        }
        .guide-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 8px;
        }
        .guide-desc {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
        }
        .myth-item {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            padding: 20px;
            box-shadow: var(--shadow-card);
            transition: var(--transition-base);
            height: 100%;
        }
        .myth-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .myth-item .myth-tag {
            font-size: 13px;
            font-weight: 600;
            color: #B45309;
            background: rgba(245, 158, 11, 0.1);
            padding: 3px 10px;
            border-radius: 999px;
            display: inline-block;
            margin-bottom: 10px;
        }
        .myth-item .truth-tag {
            font-size: 13px;
            font-weight: 600;
            color: #047857;
            background: rgba(16, 185, 129, 0.1);
            padding: 3px 10px;
            border-radius: 999px;
            display: inline-block;
            margin-bottom: 10px;
        }
        .myth-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 8px;
        }
        .myth-desc {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
        }
        .faq-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 0 20px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-card:hover {
            border-color: var(--brand-soft);
        }
        .faq-card button {
            width: 100%;
            text-align: left;
            padding: 18px 0;
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .faq-card button .faq-arrow {
            transition: var(--transition-base);
            flex-shrink: 0;
            color: var(--brand);
            font-size: 18px;
        }
        .faq-card.open .faq-arrow {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
        }
        .faq-card.open .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }
        .cta-band {
            background: linear-gradient(135deg, #EFF6FF 0%, #ECFEFF 100%);
            border: 1px solid #BFDBFE;
            border-radius: var(--radius-card);
            padding: 36px;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 24px;
            align-items: center;
        }
        .cta-band h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 10px;
        }
        .cta-band p {
            font-size: 15px;
            color: var(--sub);
        }
        .cta-btn-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand);
            color: #fff;
            padding: 12px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            box-shadow: var(--shadow-btn);
            transition: var(--transition-base);
        }
        .btn-primary:hover {
            background: var(--brand-hover);
            box-shadow: var(--shadow-btn-hover);
            transform: translateY(-2px);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #fff;
            color: var(--brand);
            padding: 12px 22px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            border: 1px solid var(--brand);
            transition: var(--transition-base);
        }
        .btn-outline:hover {
            background: var(--brand-light);
            transform: translateY(-2px);
        }
        /* Footer */
        .site-footer {
            background: #0F172A;
            color: #CBD5E1;
            padding-top: 56px;
            padding-bottom: 28px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid #1E293B;
        }
        .footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }
        .footer-logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand) 0%, var(--cyan2) 100%);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }
        .footer-logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #F1F5F9;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #94A3B8;
            max-width: 320px;
        }
        .footer-col-title {
            font-size: 15px;
            font-weight: 600;
            color: #E2E8F0;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-link {
            font-size: 14px;
            color: #94A3B8;
            transition: var(--transition-base);
        }
        .footer-link:hover {
            color: #fff;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            padding-top: 24px;
            font-size: 13px;
            color: #64748B;
        }
        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: #64748B;
            transition: var(--transition-base);
        }
        .footer-bottom-links a:hover {
            color: #fff;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .wiki-hero-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .wiki-hero-visual img {
                height: 220px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .cta-band {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta-desktop {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-menu {
                display: none;
            }
            .mobile-menu.open {
                display: flex;
            }
            .wiki-hero-title {
                font-size: 28px;
            }
            .section-title {
                font-size: 24px;
            }
            .section {
                padding-top: var(--section-pad-y-mobile);
                padding-bottom: var(--section-pad-y-mobile);
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .activity-bar-inner {
                gap: 8px;
            }
            .wiki-hero-title {
                font-size: 24px;
            }
            .cta-band {
                padding: 24px;
            }
        }