/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f2d25;
            --primary-light: #1a4a3a;
            --primary-dark: #0a1f1a;
            --accent: #d4a84b;
            --accent-light: #e8c46a;
            --accent-dark: #b8912e;
            --bg-light: #f7f5f0;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --text-dark: #111827;
            --text-body: #1f2937;
            --text-weak: #6b7280;
            --text-white: #f9fafb;
            --border: #e5e7eb;
            --border-light: #f0efeb;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --max-w: 1200px;
            --header-h: 72px;
            --space-section: 100px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        button { cursor: pointer; font-family: inherit; border: none; background: none; }
        input, textarea { font-family: inherit; font-size: 1rem; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-dark); font-weight: 700; line-height: 1.3; }
        h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
        h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
        h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
        h4 { font-size: 1.1rem; }

        /* ===== Container ===== */
        .container {
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: 880px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Section ===== */
        .section {
            padding: var(--space-section) 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-header h2 {
            margin-bottom: 12px;
            position: relative;
            display: inline-block;
        }
        .section-header h2::after {
            content: '';
            display: block;
            width: 48px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 16px auto 0;
        }
        .section-header p {
            color: var(--text-weak);
            font-size: 1.1rem;
            max-width: 620px;
            margin: 12px auto 0;
        }
        .section-bg-dark {
            background: var(--primary);
            color: var(--text-white);
        }
        .section-bg-dark h2,
        .section-bg-dark h3,
        .section-bg-dark .section-header p {
            color: var(--text-white);
        }
        .section-bg-dark .section-header h2::after {
            background: var(--accent-light);
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: background var(--transition), box-shadow var(--transition);
        }
        .header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            box-shadow: var(--shadow-sm);
        }
        .header-inner {
            max-width: var(--max-w);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.3px;
            flex-shrink: 0;
        }
        .header-logo i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .header-logo:hover {
            color: var(--primary);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
            justify-content: center;
        }
        .header-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .header-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: width var(--transition);
        }
        .header-nav a:hover { color: var(--primary); }
        .header-nav a:hover::after { width: 100%; }
        .header-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .header-nav a.active::after {
            width: 100%;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .header-search {
            position: relative;
            display: flex;
            align-items: center;
        }
        .header-search input {
            width: 180px;
            padding: 8px 12px 8px 36px;
            border: 1px solid var(--border);
            border-radius: 100px;
            background: var(--bg-light);
            font-size: 0.875rem;
            color: var(--text-dark);
            outline: none;
            transition: border var(--transition), box-shadow var(--transition);
        }
        .header-search input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(212, 168, 75, 0.15);
        }
        .header-search input::placeholder {
            color: var(--text-weak);
        }
        .header-search i {
            position: absolute;
            left: 12px;
            color: var(--text-weak);
            font-size: 0.85rem;
            pointer-events: none;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: 100px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }
        .btn-cta:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(212, 168, 75, 0.35);
        }
        .btn-cta:active {
            transform: translateY(0);
        }
        .btn-cta i {
            font-size: 0.85rem;
        }
        .btn-cta-outline {
            background: transparent;
            border: 2px solid var(--accent);
            color: var(--accent);
        }
        .btn-cta-outline:hover {
            background: var(--accent);
            color: var(--primary-dark);
        }

        /* Mobile menu toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }
        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2.5px;
            background: var(--text-dark);
            border-radius: 4px;
            transition: transform var(--transition), opacity var(--transition);
        }
        .menu-toggle.open span:nth-child(1) {
            transform: translateY(7.5px) rotate(45deg);
        }
        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-7.5px) rotate(-45deg);
        }

        /* ===== Hero ===== */
        .hero {
            padding-top: calc(var(--header-h) + 40px);
            padding-bottom: 80px;
            min-height: 85vh;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--primary-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.45;
            transform: scale(1.05);
            transition: transform 0.6s ease;
        }
        .hero:hover .hero-bg {
            transform: scale(1.02);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,45,37,0.92) 0%, rgba(15,45,37,0.72) 50%, rgba(15,45,37,0.88) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
            margin: 0 auto;
            text-align: center;
            padding: 0 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(212, 168, 75, 0.18);
            border: 1px solid rgba(212, 168, 75, 0.3);
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--accent-light);
            margin-bottom: 28px;
            letter-spacing: 0.3px;
        }
        .hero-badge i {
            font-size: 0.7rem;
        }
        .hero h1 {
            color: var(--text-white);
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 20px;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            font-size: 1.15rem;
            color: rgba(249, 250, 251, 0.8);
            max-width: 580px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }
        .hero-actions .btn-cta {
            padding: 14px 36px;
            font-size: 1rem;
        }
        .hero-actions .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            border: 2px solid rgba(255, 255, 255, 0.25);
            border-radius: 100px;
            color: var(--text-white);
            font-weight: 500;
            font-size: 0.95rem;
            transition: border var(--transition), background var(--transition);
        }
        .hero-actions .btn-ghost:hover {
            border-color: var(--accent);
            background: rgba(212, 168, 75, 0.12);
            color: var(--accent-light);
        }
        .hero-metrics {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 56px;
            flex-wrap: wrap;
        }
        .hero-metrics-item {
            text-align: center;
        }
        .hero-metrics-item .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-metrics-item .label {
            font-size: 0.85rem;
            color: rgba(249, 250, 251, 0.6);
            margin-top: 4px;
        }

        /* ===== Stats / Data Section ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 28px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-card .icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 16px;
        }
        .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: var(--text-weak);
            margin-top: 6px;
        }

        /* ===== Category / Service Cards ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
        }
        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }
        .category-card .card-body {
            padding: 24px;
        }
        .category-card .card-body h3 {
            margin-bottom: 8px;
            font-size: 1.15rem;
        }
        .category-card .card-body p {
            color: var(--text-weak);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .category-card .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            background: rgba(15, 45, 37, 0.06);
            border-radius: 100px;
            font-size: 0.78rem;
            color: var(--primary);
            font-weight: 500;
        }
        .category-card .card-tag i {
            font-size: 0.7rem;
            color: var(--accent);
        }

        /* ===== News / CMS List ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            background: var(--bg-card);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .news-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-md);
        }
        .news-item .news-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(212, 168, 75, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1rem;
            flex-shrink: 0;
        }
        .news-item .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-content h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .news-item .news-content h4 a {
            color: var(--text-dark);
        }
        .news-item .news-content h4 a:hover {
            color: var(--accent);
        }
        .news-item .news-content .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-weak);
            margin-top: 6px;
        }
        .news-item .news-content .meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .news-item .news-content .meta .tag {
            background: rgba(15, 45, 37, 0.06);
            padding: 2px 10px;
            border-radius: 100px;
            font-size: 0.75rem;
            color: var(--primary);
        }
        .news-empty {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-weak);
            font-size: 0.95rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border);
        }
        .news-empty i {
            font-size: 2rem;
            color: var(--border);
            margin-bottom: 12px;
            display: block;
        }

        /* ===== Features / Process ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 32px;
        }
        .feature-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: transform var(--transition), border var(--transition), background var(--transition);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            border-color: rgba(212, 168, 75, 0.3);
            background: rgba(255, 255, 255, 0.08);
        }
        .feature-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(212, 168, 75, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.4rem;
            color: var(--accent);
        }
        .feature-card h3 {
            color: var(--text-white);
            margin-bottom: 8px;
            font-size: 1.1rem;
        }
        .feature-card p {
            color: rgba(249, 250, 251, 0.7);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            cursor: pointer;
            background: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(15, 45, 37, 0.02);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-weak);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 18px;
            color: var(--text-weak);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .cta-inner h2 {
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-inner p {
            color: rgba(249, 250, 251, 0.75);
            font-size: 1.05rem;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .cta-inner .btn-cta {
            padding: 16px 40px;
            font-size: 1.05rem;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-dark);
            color: rgba(249, 250, 251, 0.7);
            padding: 60px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            margin-top: 12px;
            max-width: 320px;
        }
        .footer-brand .logo {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand .logo i {
            color: var(--accent);
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 0.95rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            color: rgba(249, 250, 251, 0.65);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
        }
        .footer-bottom a {
            color: rgba(249, 250, 251, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-socials {
            display: flex;
            gap: 12px;
        }
        .footer-socials a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(249, 250, 251, 0.6);
            font-size: 0.9rem;
            transition: background var(--transition), color var(--transition);
        }
        .footer-socials a:hover {
            background: var(--accent);
            color: var(--primary-dark);
        }

        /* ===== Back to Top ===== */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
            transition: opacity var(--transition), transform var(--transition), visibility var(--transition), background var(--transition);
            z-index: 999;
        }
        .back-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-top:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .header-search input {
                width: 140px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 64px;
            }
            .header-nav {
                display: none;
                position: absolute;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                border-bottom: 1px solid var(--border-light);
                flex-direction: column;
                padding: 16px 24px;
                gap: 8px;
                box-shadow: var(--shadow-md);
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                padding: 12px 0;
                font-size: 1rem;
                width: 100%;
                border-bottom: 1px solid var(--border-light);
            }
            .header-nav a:last-child {
                border-bottom: none;
            }
            .menu-toggle {
                display: flex;
            }
            .header-actions .btn-cta span {
                display: none;
            }
            .header-actions .btn-cta {
                padding: 10px 14px;
            }
            .header-search input {
                width: 120px;
            }
            .hero {
                min-height: 70vh;
                padding-top: calc(var(--header-h) + 24px);
                padding-bottom: 48px;
            }
            .hero h1 {
                font-size: clamp(1.8rem, 6vw, 2.6rem);
            }
            .hero p {
                font-size: 1rem;
            }
            .hero-metrics {
                gap: 24px;
                margin-top: 36px;
            }
            .hero-metrics-item .num {
                font-size: 1.4rem;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-item .news-icon {
                width: 32px;
                height: 32px;
                font-size: 0.85rem;
            }
        }

        @media (max-width: 520px) {
            :root {
                --space-section: 48px;
            }
            .container {
                padding: 0 16px;
            }
            .header-inner {
                padding: 0 16px;
            }
            .header-search {
                display: none;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-metrics {
                flex-direction: column;
                gap: 16px;
            }
            .section-header {
                margin-bottom: 32px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
            }
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
    :root {
        --primary: #E53935;
        --primary-dark: #C62828;
        --primary-light: #FFEBEE;
        --secondary: #1A237E;
        --secondary-light: #E8EAF6;
        --accent: #FF6F00;
        --accent-light: #FFF8E1;
        --bg-body: #F5F5F5;
        --bg-white: #FFFFFF;
        --bg-dark: #1C1C1E;
        --bg-card: #FFFFFF;
        --text-primary: #1C1C1E;
        --text-secondary: #5F6368;
        --text-light: #9E9E9E;
        --text-white: #FFFFFF;
        --border: #E0E0E0;
        --border-light: #F0F0F0;
        --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
        --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
        --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
        --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
        --max-width: 1200px;
        --header-h: 72px;
        --spacing-section: 80px;
        --spacing-block: 40px;
    }

    /* ===== Reset & Base ===== */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.7;
        color: var(--text-primary);
        background: var(--bg-body);
    }
    a { color: var(--primary); text-decoration: none; transition: var(--transition); }
    a:hover { color: var(--primary-dark); }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
    button, input, textarea, select { font-family: inherit; font-size: 1rem; outline: none; border: none; }
    ul, ol { list-style: none; }
    h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
    h1 { font-size: 2.4rem; letter-spacing: -0.02em; }
    h2 { font-size: 2rem; letter-spacing: -0.01em; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.2rem; }
    p { margin-bottom: 1rem; color: var(--text-secondary); }
    .container {
        width: 100%;
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ===== Header / Navigation ===== */
    .header {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: var(--header-h);
        background: rgba(255,255,255,0.92);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--border-light);
        z-index: 1000;
        transition: var(--transition);
    }
    .header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
    }
    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--primary);
        letter-spacing: -0.03em;
    }
    .logo i { font-size: 1.6rem; color: var(--secondary); }
    .logo span { color: var(--text-primary); }
    .header-nav {
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .header-nav a {
        padding: 8px 18px;
        border-radius: 50px;
        font-size: 0.95rem;
        font-weight: 500;
        color: var(--text-secondary);
        transition: var(--transition);
        position: relative;
    }
    .header-nav a:hover { color: var(--primary); background: var(--primary-light); }
    .header-nav a.active {
        color: var(--text-white);
        background: var(--primary);
        font-weight: 600;
        box-shadow: 0 4px 12px rgba(229,57,53,0.3);
    }
    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .search-box {
        display: flex;
        align-items: center;
        background: var(--bg-body);
        border-radius: 50px;
        padding: 0 16px;
        border: 1px solid var(--border);
        transition: var(--transition);
    }
    .search-box:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(229,57,53,0.15); }
    .search-box input {
        background: transparent;
        padding: 8px 0;
        font-size: 0.9rem;
        min-width: 140px;
        color: var(--text-primary);
    }
    .search-box input::placeholder { color: var(--text-light); }
    .search-box i { color: var(--text-light); font-size: 0.95rem; }
    .header-cta {
        padding: 10px 24px;
        border-radius: 50px;
        background: var(--secondary);
        color: var(--text-white);
        font-weight: 600;
        font-size: 0.9rem;
        transition: var(--transition);
        white-space: nowrap;
    }
    .header-cta:hover { background: #0D1457; color: var(--text-white); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(26,35,126,0.25); }
    .mobile-toggle { display: none; background: none; font-size: 1.5rem; color: var(--text-primary); cursor: pointer; padding: 6px; }

    /* ===== Breadcrumb ===== */
    .breadcrumb-bar {
        margin-top: var(--header-h);
        padding: 20px 0 10px;
        background: var(--bg-white);
        border-bottom: 1px solid var(--border-light);
    }
    .breadcrumb-bar .container {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 0.9rem;
        color: var(--text-light);
    }
    .breadcrumb-bar a { color: var(--text-secondary); }
    .breadcrumb-bar a:hover { color: var(--primary); }
    .breadcrumb-bar span { color: var(--text-primary); font-weight: 500; }

    /* ===== Article Main ===== */
    .article-section {
        padding: 50px 0 var(--spacing-section);
    }
    .article-layout {
        display: grid;
        grid-template-columns: 1fr 320px;
        gap: 48px;
        align-items: start;
    }
    .article-main {
        background: var(--bg-white);
        border-radius: var(--radius-lg);
        padding: 40px 44px;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-light);
    }
    .article-header {
        margin-bottom: 32px;
        padding-bottom: 28px;
        border-bottom: 2px solid var(--border-light);
    }
    .article-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 16px;
        margin-bottom: 16px;
    }
    .article-cat {
        display: inline-block;
        padding: 4px 14px;
        border-radius: 50px;
        background: var(--primary-light);
        color: var(--primary-dark);
        font-size: 0.8rem;
        font-weight: 600;
    }
    .article-date {
        font-size: 0.9rem;
        color: var(--text-light);
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .article-date i { font-size: 0.85rem; }
    .article-title {
        font-size: 2.2rem;
        font-weight: 800;
        line-height: 1.25;
        margin-bottom: 12px;
        letter-spacing: -0.02em;
    }
    .article-desc {
        font-size: 1.1rem;
        color: var(--text-secondary);
        line-height: 1.6;
    }
    .article-body {
        font-size: 1.05rem;
        line-height: 1.9;
        color: var(--text-primary);
    }
    .article-body p { margin-bottom: 1.2rem; }
    .article-body h2, .article-body h3, .article-body h4 { margin-top: 2rem; margin-bottom: 0.8rem; }
    .article-body ul, .article-body ol { margin-bottom: 1.2rem; padding-left: 1.5rem; }
    .article-body li { margin-bottom: 0.4rem; list-style: disc; color: var(--text-secondary); }
    .article-body img { margin: 1.5rem 0; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
    .article-body blockquote {
        border-left: 4px solid var(--primary);
        padding: 16px 20px;
        margin: 1.5rem 0;
        background: var(--primary-light);
        border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
        color: var(--text-secondary);
        font-style: italic;
    }
    .article-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 36px;
        padding-top: 24px;
        border-top: 1px solid var(--border-light);
    }
    .article-tag {
        padding: 6px 16px;
        border-radius: 50px;
        background: var(--bg-body);
        color: var(--text-secondary);
        font-size: 0.85rem;
        font-weight: 500;
        transition: var(--transition);
    }
    .article-tag:hover { background: var(--primary-light); color: var(--primary); }
    .article-nav-links {
        display: flex;
        justify-content: space-between;
        gap: 16px;
        margin-top: 40px;
        padding-top: 24px;
        border-top: 1px solid var(--border-light);
    }
    .article-nav-link {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 12px 20px;
        border-radius: var(--radius-md);
        background: var(--bg-body);
        color: var(--text-secondary);
        font-size: 0.9rem;
        font-weight: 500;
        transition: var(--transition);
        flex: 1;
        max-width: 48%;
    }
    .article-nav-link:hover { background: var(--primary-light); color: var(--primary); }
    .article-nav-link i { font-size: 1rem; }

    /* ===== Sidebar ===== */
    .article-sidebar {
        display: flex;
        flex-direction: column;
        gap: 32px;
    }
    .sidebar-card {
        background: var(--bg-white);
        border-radius: var(--radius-lg);
        padding: 28px;
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-light);
    }
    .sidebar-card h4 {
        font-size: 1.1rem;
        font-weight: 700;
        margin-bottom: 16px;
        padding-bottom: 12px;
        border-bottom: 2px solid var(--border-light);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .sidebar-card h4 i { color: var(--primary); }
    .sidebar-list-item {
        display: flex;
        gap: 14px;
        padding: 12px 0;
        border-bottom: 1px solid var(--border-light);
        transition: var(--transition);
    }
    .sidebar-list-item:last-child { border-bottom: none; }
    .sidebar-list-item:hover { opacity: 0.8; }
    .sidebar-list-item img {
        width: 72px;
        height: 52px;
        object-fit: cover;
        border-radius: var(--radius-sm);
        flex-shrink: 0;
    }
    .sidebar-list-item .info {
        flex: 1;
        min-width: 0;
    }
    .sidebar-list-item .info .title {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--text-primary);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        line-height: 1.4;
    }
    .sidebar-list-item .info .date {
        font-size: 0.8rem;
        color: var(--text-light);
        margin-top: 4px;
    }
    .sidebar-cta {
        display: block;
        padding: 14px 20px;
        border-radius: var(--radius-md);
        background: var(--secondary);
        color: var(--text-white);
        font-weight: 600;
        text-align: center;
        transition: var(--transition);
    }
    .sidebar-cta:hover { background: #0D1457; color: var(--text-white); transform: translateY(-2px); box-shadow: var(--shadow-md); }
    .sidebar-hot-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 10px 0;
        border-bottom: 1px solid var(--border-light);
    }
    .sidebar-hot-item:last-child { border-bottom: none; }
    .sidebar-hot-item .rank {
        width: 26px;
        height: 26px;
        border-radius: 6px;
        background: var(--bg-body);
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 0.8rem;
        color: var(--text-light);
        flex-shrink: 0;
    }
    .sidebar-hot-item .rank.top { background: var(--primary); color: var(--text-white); }
    .sidebar-hot-item .text {
        font-size: 0.9rem;
        font-weight: 500;
        color: var(--text-primary);
        flex: 1;
    }
    .sidebar-hot-item .count {
        font-size: 0.8rem;
        color: var(--text-light);
    }

    /* ===== Not Found ===== */
    .not-found-box {
        text-align: center;
        padding: 80px 40px;
        background: var(--bg-white);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-sm);
        border: 1px solid var(--border-light);
    }
    .not-found-box i { font-size: 4rem; color: var(--text-light); margin-bottom: 20px; }
    .not-found-box h2 { font-size: 1.8rem; margin-bottom: 12px; }
    .not-found-box p { color: var(--text-secondary); max-width: 400px; margin: 0 auto 24px; }
    .not-found-box .btn-back {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 32px;
        border-radius: 50px;
        background: var(--primary);
        color: var(--text-white);
        font-weight: 600;
        transition: var(--transition);
    }
    .not-found-box .btn-back:hover { background: var(--primary-dark); color: var(--text-white); transform: translateY(-2px); box-shadow: var(--shadow-md); }

    /* ===== Footer ===== */
    .footer {
        background: var(--bg-dark);
        color: rgba(255,255,255,0.85);
        padding: 64px 0 0;
    }
    .footer .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
    .footer-grid {
        display: grid;
        grid-template-columns: 1.8fr 1fr 1fr 1fr;
        gap: 48px;
        padding-bottom: 40px;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .footer-brand .logo { color: var(--text-white); margin-bottom: 16px; font-size: 1.4rem; }
    .footer-brand .logo i { color: var(--primary); }
    .footer-brand p { color: rgba(255,255,255,0.6); font-size: 0.9rem; line-height: 1.7; max-width: 300px; }
    .footer-col h4 { color: var(--text-white); font-size: 1rem; font-weight: 600; margin-bottom: 18px; }
    .footer-col a {
        display: block;
        color: rgba(255,255,255,0.6);
        font-size: 0.9rem;
        padding: 5px 0;
        transition: var(--transition);
    }
    .footer-col a:hover { color: var(--primary); padding-left: 4px; }
    .footer-col a i { width: 20px; margin-right: 6px; }
    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 24px 0;
        flex-wrap: wrap;
        gap: 16px;
    }
    .footer-bottom span { color: rgba(255,255,255,0.4); font-size: 0.85rem; }
    .footer-socials { display: flex; gap: 12px; }
    .footer-socials a {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: rgba(255,255,255,0.06);
        color: rgba(255,255,255,0.6);
        font-size: 1.1rem;
        transition: var(--transition);
    }
    .footer-socials a:hover { background: var(--primary); color: var(--text-white); transform: translateY(-2px); }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .article-layout { grid-template-columns: 1fr; }
        .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    }
    @media (max-width: 768px) {
        :root { --spacing-section: 48px; --header-h: 64px; }
        h1 { font-size: 1.8rem; }
        h2 { font-size: 1.5rem; }
        .header-nav { display: none; }
        .header-nav.open { display: flex; flex-direction: column; position: absolute; top: var(--header-h); left: 0; width: 100%; background: rgba(255,255,255,0.98); backdrop-filter: blur(16px); padding: 16px 24px; border-bottom: 1px solid var(--border); gap: 4px; }
        .mobile-toggle { display: block; }
        .search-box { display: none; }
        .header-cta { padding: 8px 16px; font-size: 0.85rem; }
        .article-main { padding: 24px 20px; }
        .article-title { font-size: 1.6rem; }
        .article-sidebar { grid-template-columns: 1fr; }
        .article-nav-links { flex-direction: column; }
        .article-nav-link { max-width: 100%; }
        .footer-grid { grid-template-columns: 1fr; gap: 28px; }
        .footer-bottom { flex-direction: column; text-align: center; }
        .breadcrumb-bar { padding: 14px 0 8px; font-size: 0.8rem; }
    }
    @media (max-width: 520px) {
        .container { padding: 0 16px; }
        .article-section { padding: 28px 0 var(--spacing-section); }
        .article-main { padding: 18px 16px; border-radius: var(--radius-md); }
        .article-title { font-size: 1.3rem; }
        .article-body { font-size: 0.95rem; }
        .sidebar-card { padding: 20px; }
        .header-cta { display: none; }
    }

/* roulang page: category1 */
/* ===== :root 设计变量 ===== */
        :root {
            --primary: #e63946;
            --primary-light: #ff6b6b;
            --primary-dark: #c1121f;
            --primary-bg: #fff5f5;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --accent-light: #f9d7a1;
            --bg: #ffffff;
            --bg-alt: #f8f9fa;
            --bg-dark: #1a1a2e;
            --text: #1e1e2f;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border: #e9ecef;
            --border-light: #f0f0f0;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            font-size: 16px;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: 1rem; outline: none; border: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text); }
        h1 { font-size: 2.8rem; letter-spacing: -0.02em; }
        h2 { font-size: 2.2rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.5rem; }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 0.8rem; color: var(--text-light); }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        section { padding: 80px 0; }
        .section-title {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-title h2 {
            position: relative;
            display: inline-block;
            margin-bottom: 12px;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin: 12px auto 0;
        }
        .section-title p {
            max-width: 600px;
            margin: 8px auto 0;
            font-size: 1.1rem;
        }
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            background: var(--primary-bg);
            color: var(--primary);
            border: 1px solid rgba(230,57,70,0.2);
            letter-spacing: 0.3px;
        }
        .badge-alt {
            background: rgba(29,53,87,0.08);
            color: var(--secondary);
            border-color: rgba(29,53,87,0.15);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230,57,70,0.25);
        }
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.30);
        }
        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: none;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(230,57,70,0.20);
        }
        .btn-sm { padding: 8px 20px; font-size: 0.85rem; }
        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 4px 14px rgba(0,0,0,0.08);
        }
        .btn-white:hover {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 24px rgba(230,57,70,0.25);
        }

        /* ===== Header / Nav ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }
        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--primary);
            font-size: 1.7rem;
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .header-nav a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-light);
            position: relative;
            padding: 4px 0;
            transition: var(--transition);
        }
        .header-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .header-nav a:hover { color: var(--text); }
        .header-nav a:hover::after { width: 100%; }
        .header-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .header-nav a.active::after { width: 100%; }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border-radius: 50px;
            padding: 0 16px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(230,57,70,0.10);
        }
        .search-box input {
            background: transparent;
            border: none;
            padding: 8px 12px;
            font-size: 0.9rem;
            min-width: 160px;
            color: var(--text);
        }
        .search-box input::placeholder { color: var(--text-light); }
        .search-box i { color: var(--text-light); font-size: 0.9rem; }
        .menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
        .menu-toggle span { display: block; width: 26px; height: 3px; background: var(--text); border-radius: 4px; transition: var(--transition); }

        /* ===== Hero / Banner ===== */
        .page-banner {
            margin-top: var(--header-h);
            padding: 100px 0 80px;
            background: linear-gradient(135deg, var(--secondary) 0%, #16213e 100%);
            position: relative;
            overflow: hidden;
            min-height: 360px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner .container { position: relative; z-index: 2; }
        .page-banner h1 {
            color: var(--text-white);
            font-size: 3rem;
            margin-bottom: 16px;
        }
        .page-banner p {
            color: rgba(255,255,255,0.75);
            font-size: 1.15rem;
            max-width: 640px;
        }
        .banner-breadcrumb {
            display: flex;
            gap: 8px;
            align-items: center;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            margin-bottom: 20px;
        }
        .banner-breadcrumb a { color: rgba(255,255,255,0.8); }
        .banner-breadcrumb a:hover { color: #fff; }
        .banner-breadcrumb span { color: var(--primary-light); }

        /* ===== Category Grid / Cards ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .event-card {
            background: var(--bg);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .event-card .card-img {
            height: 200px;
            background: var(--bg-alt);
            overflow: hidden;
            position: relative;
        }
        .event-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .event-card:hover .card-img img { transform: scale(1.06); }
        .event-card .card-img .badge {
            position: absolute;
            top: 14px;
            left: 14px;
        }
        .event-card .card-body {
            padding: 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .card-body h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .event-card .card-body h3 a { color: var(--text); }
        .event-card .card-body h3 a:hover { color: var(--primary); }
        .event-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-light);
            flex: 1;
            margin-bottom: 16px;
        }
        .event-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.85rem;
            color: var(--text-light);
            border-top: 1px solid var(--border-light);
            padding-top: 14px;
            margin-top: auto;
        }
        .event-card .card-meta i { margin-right: 4px; }

        /* ===== Feature / Stats ===== */
        .stats-row {
            display: flex;
            gap: 48px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 32px;
        }
        .stat-item {
            text-align: center;
            padding: 24px 32px;
            background: var(--bg);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            min-width: 160px;
            transition: var(--transition);
        }
        .stat-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-item .num {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-top: 4px;
        }

        /* ===== Filters / Tags ===== */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 36px;
            align-items: center;
            justify-content: center;
        }
        .filter-bar .filter-btn {
            padding: 8px 22px;
            border-radius: 50px;
            border: 1px solid var(--border);
            background: var(--bg);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-light);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-bar .filter-btn:hover,
        .filter-bar .filter-btn.active {
            border-color: var(--primary);
            background: var(--primary);
            color: #fff;
        }

        /* ===== Featured / Highlights ===== */
        .featured-single {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            background: var(--bg-alt);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
        }
        .featured-single .feat-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            height: 320px;
        }
        .featured-single .feat-img img { width: 100%; height: 100%; object-fit: cover; }
        .featured-single .feat-content h3 { font-size: 1.8rem; margin-bottom: 12px; }
        .featured-single .feat-content p { font-size: 1rem; margin-bottom: 20px; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 760px; margin: 0 auto; }
        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
        }
        .faq-item:first-child { padding-top: 0; }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text);
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i { transition: var(--transition); color: var(--primary); font-size: 1.1rem; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            padding-top: 0;
            color: var(--text-light);
            font-size: 0.95rem;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, #16213e 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { color: var(--text-white); font-size: 2.4rem; margin-bottom: 16px; }
        .cta-section p { color: rgba(255,255,255,0.7); font-size: 1.1rem; max-width: 600px; margin: 0 auto 32px; }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { color: #fff; margin-bottom: 16px; }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.6); line-height: 1.7; }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--primary-light); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.5);
        }
        .footer-socials a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.6);
            font-size: 1.1rem;
            transition: var(--transition);
            margin-left: 8px;
        }
        .footer-socials a:hover { background: var(--primary); color: #fff; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .category-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .featured-single { grid-template-columns: 1fr; padding: 28px; }
            .featured-single .feat-img { height: 240px; }
        }
        @media (max-width: 768px) {
            .header-nav { display: none; }
            .menu-toggle { display: flex; }
            .header-actions .search-box { display: none; }
            .page-banner { padding: 80px 0 60px; min-height: 280px; }
            .page-banner h1 { font-size: 2.2rem; }
            .category-grid { grid-template-columns: 1fr; gap: 20px; }
            .stats-row { gap: 16px; }
            .stat-item { min-width: 120px; padding: 16px 20px; }
            .stat-item .num { font-size: 2rem; }
            section { padding: 56px 0; }
            .section-title { margin-bottom: 32px; }
            h2 { font-size: 1.8rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .featured-single { padding: 20px; }
            .featured-single .feat-content h3 { font-size: 1.4rem; }
            .filter-bar .filter-btn { padding: 6px 16px; font-size: 0.85rem; }
            .cta-section h2 { font-size: 1.8rem; }
            /* 移动端导航浮层 */
            .mobile-nav-open .header-nav {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255,255,255,0.98);
                backdrop-filter: blur(16px);
                padding: 24px 32px;
                box-shadow: var(--shadow-md);
                border-bottom: 1px solid var(--border);
                gap: 20px;
                align-items: flex-start;
            }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .page-banner h1 { font-size: 1.8rem; }
            .page-banner p { font-size: 0.95rem; }
            .stat-item { min-width: 100px; padding: 12px 16px; }
            .stat-item .num { font-size: 1.6rem; }
            .event-card .card-img { height: 160px; }
            .btn { padding: 10px 22px; font-size: 0.9rem; }
        }