/* roulang page: index */
:root {
            --primary: #E53E3E;
            --primary-hover: #C53030;
            --accent: #F6AD55;
            --accent-hover: #ED8936;
            --bg-dark: #0B1121;
            --bg-card: #162032;
            --bg-sidebar: #0D1526;
            --text-primary: #F1F5F9;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-color: #1E2A3E;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-glow: 0 0 40px rgba(229,62,62,0.15);
            --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Inter','Segoe UI','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            overflow-x: hidden;
        }
        ::selection { background: rgba(229,62,62,0.3); color: #fff; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; }

        /* Scrollbar */
        ::-webkit-scrollbar { width: 6px; }
        ::-webkit-scrollbar-track { background: var(--bg-dark); }
        ::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 10px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

        /* Sidebar Layout */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: 260px;
            height: 100vh;
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border-color);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
            overflow-y: auto;
        }
        .main-content {
            margin-left: 260px;
            min-height: 100vh;
        }

        /* Sidebar Brand */
        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .sidebar-brand .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), #9B2C2C);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 4px 14px rgba(229,62,62,0.3);
        }
        .sidebar-brand .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }
        .sidebar-brand .logo-text span { color: var(--accent); }

        /* Sidebar Nav */
        .sidebar-nav {
            padding: 16px 12px;
            flex: 1;
        }
        .sidebar-nav .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.2px;
            color: var(--text-muted);
            padding: 12px 12px 8px;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: 10px;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            margin-bottom: 2px;
            position: relative;
        }
        .sidebar-nav a i { width: 20px; text-align: center; font-size: 16px; }
        .sidebar-nav a:hover {
            background: rgba(229,62,62,0.08);
            color: var(--text-primary);
        }
        .sidebar-nav a.active {
            background: linear-gradient(135deg, rgba(229,62,62,0.18), rgba(229,62,62,0.06));
            color: var(--primary);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--primary);
        }
        .sidebar-nav a.active::after {
            content: '';
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 6px;
            background: var(--primary);
            border-radius: 50%;
            box-shadow: 0 0 12px rgba(229,62,62,0.5);
        }
        .sidebar-nav a .badge {
            margin-left: auto;
            background: var(--primary);
            color: #fff;
            font-size: 10px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        /* Sidebar Footer */
        .sidebar-footer {
            padding: 20px 16px;
            border-top: 1px solid var(--border-color);
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
        }

        /* Mobile Header */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--bg-sidebar);
            border-bottom: 1px solid var(--border-color);
            z-index: 999;
            padding: 0 20px;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-header .logo-text {
            font-size: 17px;
            font-weight: 700;
        }
        .mobile-header .logo-text span { color: var(--accent); }
        .hamburger {
            width: 40px;
            height: 40px;
            background: none;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 20px;
            transition: var(--transition);
        }
        .hamburger:hover { background: rgba(229,62,62,0.1); border-color: var(--primary); }

        /* Overlay */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.6);
            z-index: 998;
            backdrop-filter: blur(4px);
        }

        /* Container */
        .container-custom {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 28px;
        }

        /* Section spacing */
        .section-padding { padding: 80px 0; }
        .section-padding-sm { padding: 56px 0; }

        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: linear-gradient(135deg, var(--primary), #C53030);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            border: none;
            border-radius: 50px;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(229,62,62,0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(229,62,62,0.45);
        }
        .btn-primary:active { transform: translateY(0); }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 16px;
            border: 1px solid var(--border-color);
            border-radius: 50px;
            transition: var(--transition);
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(229,62,62,0.06);
            color: var(--primary);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
            border-radius: 30px;
        }

        /* Cards */
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(229,62,62,0.2);
        }
        .card-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin: -28px -24px 20px;
            height: 200px;
            position: relative;
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .card:hover .card-image img { transform: scale(1.05); }
        .card-image .overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 20px 16px 12px;
            background: linear-gradient(transparent, rgba(0,0,0,0.7));
        }
        .card-image .tag {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 11px;
            font-weight: 700;
            padding: 3px 14px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        /* Badge / Tag */
        .badge {
            display: inline-block;
            background: rgba(229,62,62,0.12);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .badge-accent {
            background: rgba(246,173,85,0.15);
            color: var(--accent);
        }

        /* Section title */
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            line-height: 1.25;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            margin-top: 12px;
            max-width: 600px;
        }
        .title-accent { color: var(--accent); }
        .title-primary { color: var(--primary); }

        /* Hero */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0B1121 0%, #162032 50%, #0D1526 100%);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.18;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(229,62,62,0.08) 0%, transparent 60%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 120px 0 80px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(229,62,62,0.12);
            border: 1px solid rgba(229,62,62,0.2);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 13px;
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 24px;
        }
        .hero-badge i { font-size: 14px; }
        .hero-title {
            font-size: 56px;
            font-weight: 900;
            line-height: 1.1;
            letter-spacing: -1px;
            color: var(--text-primary);
            max-width: 720px;
        }
        .hero-title .highlight {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 560px;
            margin-top: 20px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 36px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 52px;
            padding-top: 32px;
            border-top: 1px solid var(--border-color);
        }
        .hero-stat-item h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
        }
        .hero-stat-item h3 span { color: var(--accent); }
        .hero-stat-item p {
            font-size: 14px;
            color: var(--text-muted);
            margin-top: 2px;
        }

        /* Grid layout */
        .grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
        .grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
        .grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }

        /* Feature icon */
        .feature-icon {
            width: 56px;
            height: 56px;
            background: linear-gradient(135deg, rgba(229,62,62,0.12), rgba(229,62,62,0.04));
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: var(--primary);
            margin-bottom: 16px;
            border: 1px solid rgba(229,62,62,0.1);
        }

        /* Category Card */
        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
            border-color: rgba(229,62,62,0.2);
        }
        .category-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .category-card .cat-body {
            padding: 20px 24px 24px;
        }
        .category-card .cat-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .category-card .cat-body p {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .category-card .cat-arrow {
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            width: 40px;
            height: 40px;
            background: rgba(229,62,62,0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            opacity: 0;
            transition: var(--transition);
        }
        .category-card:hover .cat-arrow { opacity: 1; right: 16px; }

        /* List item */
        .list-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 0;
            border-bottom: 1px solid rgba(30,42,62,0.5);
            transition: var(--transition);
        }
        .list-item:last-child { border-bottom: none; }
        .list-item:hover { padding-left: 8px; }
        .list-item .item-index {
            width: 32px;
            height: 32px;
            background: rgba(229,62,62,0.1);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .list-item .item-content { flex: 1; }
        .list-item .item-content h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .list-item .item-content p {
            font-size: 14px;
            color: var(--text-secondary);
        }
        .list-item .item-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            gap: 16px;
            margin-top: 6px;
        }

        /* Steps */
        .step-card {
            text-align: center;
            padding: 28px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .step-number {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--primary), #9B2C2C);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            margin: 0 auto 16px;
            box-shadow: 0 4px 16px rgba(229,62,62,0.25);
        }
        .step-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
        .step-card p { font-size: 14px; color: var(--text-secondary); }

        /* FAQ */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover { border-color: rgba(229,62,62,0.15); }
        .faq-item .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
        }
        .faq-item .faq-q i {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .faq-item.open .faq-q i { transform: rotate(180deg); color: var(--primary); }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding-top: 0;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding-top: 14px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, rgba(229,62,62,0.06), rgba(246,173,85,0.04));
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(229,62,62,0.06), transparent 70%);
            border-radius: 50%;
        }
        .cta-section h2 { font-size: 36px; font-weight: 800; }
        .cta-section p { color: var(--text-secondary); max-width: 520px; margin: 12px auto 28px; font-size: 16px; }

        /* Footer */
        .footer {
            border-top: 1px solid var(--border-color);
            padding: 40px 0 32px;
            margin-top: 40px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
        .footer-brand .logo-text { font-size: 20px; font-weight: 700; }
        .footer-brand .logo-text span { color: var(--accent); }
        .footer-brand p { color: var(--text-secondary); font-size: 14px; margin-top: 12px; max-width: 320px; }
        .footer-col h5 { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 16px; letter-spacing: 0.5px; }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-secondary);
            padding: 5px 0;
        }
        .footer-col a:hover { color: var(--primary); }
        .footer-bottom {
            margin-top: 32px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* Empty state */
        .empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); font-size: 15px; }

        /* Responsive */
        @media (max-width: 1024px) {
            .grid-3 { grid-template-columns: repeat(2,1fr); }
            .grid-4 { grid-template-columns: repeat(2,1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .sidebar { transform: translateX(-100%); }
            .sidebar.open { transform: translateX(0); }
            .sidebar-overlay.open { display: block; }
            .main-content { margin-left: 0; }
            .mobile-header { display: flex; }
            .main-content { padding-top: 64px; }
            .hero-section { min-height: auto; }
            .hero-title { font-size: 36px; }
            .hero-desc { font-size: 16px; }
            .hero-stats { gap: 24px; }
            .section-title { font-size: 26px; }
            .section-padding { padding: 56px 0; }
            .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
            .cta-section { padding: 40px 24px; }
            .cta-section h2 { font-size: 26px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .container-custom { padding: 0 20px; }
            .hero-stat-item h3 { font-size: 22px; }
            .list-item .item-meta { flex-wrap: wrap; gap: 8px; }
        }
        @media (max-width: 520px) {
            .hero-title { font-size: 28px; }
            .hero-actions { flex-direction: column; }
            .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
            .hero-stats { flex-direction: column; gap: 16px; }
            .section-title { font-size: 22px; }
            .card-image { height: 160px; }
            .category-card img { height: 160px; }
            .step-card { padding: 20px 16px; }
        }

/* roulang page: category1 */
:root {
            --primary: #e53e3e;
            --primary-dark: #c53030;
            --primary-light: #feb2b2;
            --accent: #1a202c;
            --bg-body: #0f1117;
            --bg-card: #1a1d2e;
            --bg-card-hover: #222640;
            --bg-sidebar: #12141e;
            --text-primary: #f7fafc;
            --text-secondary: #cbd5e0;
            --text-muted: #718096;
            --border-color: #2d3748;
            --border-light: #4a5568;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-hover: 0 16px 48px rgba(229, 62, 62, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            transition: var(--transition);
        }
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-body);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--border-light);
        }

        /* Sidebar Layout */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: 240px;
            height: 100vh;
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border-color);
            z-index: 100;
            display: flex;
            flex-direction: column;
            padding: 24px 16px;
            overflow-y: auto;
            transition: var(--transition);
        }
        .sidebar-logo {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0 8px 28px 8px;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 20px;
            color: var(--text-primary);
        }
        .sidebar-logo span {
            color: var(--primary);
        }
        .sidebar-logo i {
            color: var(--primary);
            font-size: 26px;
        }
        .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--text-muted);
            padding: 0 8px;
            margin-bottom: 12px;
            font-weight: 600;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 2px;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .sidebar-nav a:hover {
            background: rgba(229, 62, 62, 0.08);
            color: var(--text-primary);
        }
        .sidebar-nav a:hover i {
            color: var(--primary);
        }
        .sidebar-nav a.active {
            background: rgba(229, 62, 62, 0.15);
            color: var(--primary);
            font-weight: 600;
        }
        .sidebar-nav a.active i {
            color: var(--primary);
        }
        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
        }
        .sidebar-nav a .badge {
            margin-left: auto;
            font-size: 10px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 20px;
            background: var(--primary);
            color: #fff;
            letter-spacing: 0.3px;
        }
        .sidebar-nav a .badge.new {
            background: #2d8cf0;
        }

        /* Main Content */
        .main-content {
            margin-left: 240px;
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

        /* Hero */
        .hero-category {
            position: relative;
            padding: 80px 0 64px;
            background: linear-gradient(135deg, #0f1117 0%, #1a1d2e 60%, #1f1030 100%);
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(229, 62, 62, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-category::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(45, 140, 240, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-category .bg-image {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }
        .hero-category .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-category h1 {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .hero-category h1 span {
            color: var(--primary);
        }
        .hero-category p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.8;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
        }
        .hero-tags .tag {
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(229, 62, 62, 0.12);
            color: var(--primary-light);
            border: 1px solid rgba(229, 62, 62, 0.2);
        }
        .hero-tags .tag i {
            margin-right: 6px;
            font-size: 12px;
        }

        /* Section */
        .section {
            padding: 72px 0;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-header .subtitle {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.5px;
            line-height: 1.3;
        }
        .section-header p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-top: 10px;
            max-width: 560px;
        }

        /* Cards Grid */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .card:hover {
            transform: translateY(-4px);
            border-color: rgba(229, 62, 62, 0.25);
            box-shadow: var(--shadow-hover);
            background: var(--bg-card-hover);
        }
        .card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
        }
        .card .card-body {
            padding: 24px 20px 20px;
        }
        .card .card-body .card-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 20px;
            background: rgba(229, 62, 62, 0.12);
            color: var(--primary-light);
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .card .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .card .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-top: 14px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .card .card-body .card-meta i {
            margin-right: 4px;
        }

        /* Process Steps */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 28px;
            counter-reset: step;
        }
        .process-step {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 32px 24px 28px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }
        .process-step:hover {
            border-color: rgba(229, 62, 62, 0.2);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .process-step .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(229, 62, 62, 0.12);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            margin: 0 auto 16px;
            border: 1px solid rgba(229, 62, 62, 0.2);
        }
        .process-step h4 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* Stats */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            padding: 36px 28px;
        }
        .stat-item {
            text-align: center;
        }
        .stat-item .stat-number {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        /* FAQ */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            padding: 20px 22px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(229, 62, 62, 0.2);
        }
        .faq-item h4 {
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .faq-item h4 i {
            color: var(--primary);
            font-size: 14px;
        }
        .faq-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            padding-left: 22px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, rgba(229, 62, 62, 0.08), rgba(45, 140, 240, 0.05));
            border-radius: var(--radius-lg);
            border: 1px solid rgba(229, 62, 62, 0.15);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            left: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(229, 62, 62, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h3 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(229, 62, 62, 0.3);
        }
        .btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(229, 62, 62, 0.4);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-color);
            box-shadow: none;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(229, 62, 62, 0.06);
            box-shadow: none;
        }
        .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        /* Footer */
        .footer {
            background: var(--bg-sidebar);
            border-top: 1px solid var(--border-color);
            padding: 56px 0 28px;
            margin-top: auto;
        }
        .footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }
        .footer .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .footer .logo-text span {
            color: var(--primary);
        }
        .footer .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer .footer-col h5 {
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .footer .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-muted);
            padding: 3px 0;
            transition: var(--transition);
        }
        .footer .footer-col a:hover {
            color: var(--primary);
        }
        .footer .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer .footer-bottom a:hover {
            color: var(--primary);
        }

        /* Mobile toggle */
        .mobile-toggle {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 200;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition);
        }
        .mobile-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .sidebar-overlay {
            display: none;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .sidebar {
                width: 200px;
                padding: 20px 12px;
            }
            .main-content {
                margin-left: 200px;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .mobile-toggle {
                display: flex;
            }
            .sidebar {
                transform: translateX(-100%);
                width: 260px;
                box-shadow: 0 0 40px rgba(0, 0, 0, 0.6);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay {
                display: block;
                position: fixed;
                inset: 0;
                background: rgba(0, 0, 0, 0.6);
                z-index: 99;
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
            }
            .sidebar-overlay.open {
                opacity: 1;
                pointer-events: auto;
            }
            .main-content {
                margin-left: 0;
            }
            .container-custom {
                padding: 0 20px;
            }
            .hero-category {
                padding: 60px 0 48px;
            }
            .hero-category h1 {
                font-size: 28px;
            }
            .hero-category p {
                font-size: 15px;
            }
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .card-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                padding: 24px 16px;
            }
            .stat-item .stat-number {
                font-size: 28px;
            }
            .cta-section {
                padding: 36px 24px;
            }
            .cta-section h3 {
                font-size: 22px;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer .footer-brand p {
                max-width: 100%;
            }
        }

        @media (max-width: 520px) {
            .hero-category h1 {
                font-size: 22px;
            }
            .hero-tags .tag {
                font-size: 12px;
                padding: 4px 14px;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
                padding: 16px 12px;
            }
            .stat-item .stat-number {
                font-size: 24px;
            }
            .btn {
                padding: 10px 24px;
                font-size: 14px;
            }
            .cta-section {
                padding: 28px 16px;
            }
            .cta-section h3 {
                font-size: 18px;
            }
            .card .card-body {
                padding: 16px 14px;
            }
            .faq-item {
                padding: 14px 16px;
            }
            .faq-item h4 {
                font-size: 14px;
            }
        }

/* roulang page: article */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #2a4a7f;
            --accent: #f4a261;
            --bg-dark: #0d1b2a;
            --bg-sidebar: #0f1923;
            --bg-card: #1b2838;
            --bg-body: #f0f2f5;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8a8aaa;
            --text-light: #e8e8f0;
            --border-color: #2a3a4a;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 32px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --sidebar-width: 240px;
            --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button, input, textarea {
            font-family: inherit;
            transition: var(--transition);
        }
        .app-shell {
            display: flex;
            min-height: 100vh;
        }
        /* ===== 左侧导航 ===== */
        .sidebar {
            width: var(--sidebar-width);
            background: var(--bg-sidebar);
            color: var(--text-light);
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            padding: 24px 0 20px;
            border-right: 1px solid rgba(255,255,255,0.04);
            box-shadow: 2px 0 20px rgba(0,0,0,0.3);
            overflow-y: auto;
            transition: var(--transition);
        }
        .sidebar-logo {
            padding: 0 20px 28px;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }
        .sidebar-logo .logo-text {
            font-size: 18px;
            font-weight: 700;
            letter-spacing: 0.5px;
            background: linear-gradient(90deg, #fff, #b0b8c8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .sidebar-logo .logo-text span {
            color: var(--primary-light);
            -webkit-text-fill-color: var(--primary-light);
        }
        .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: rgba(255,255,255,0.25);
            padding: 12px 24px 8px;
            font-weight: 600;
        }
        .sidebar-nav {
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding: 0 12px;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: rgba(255,255,255,0.6);
            transition: var(--transition);
            position: relative;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .sidebar-nav a:hover {
            background: rgba(255,255,255,0.06);
            color: #fff;
        }
        .sidebar-nav a.active {
            background: linear-gradient(135deg, rgba(230,57,70,0.2), rgba(230,57,70,0.05));
            color: var(--primary-light);
            border-left: 3px solid var(--primary);
        }
        .sidebar-nav a .badge {
            margin-left: auto;
            background: var(--primary);
            color: #fff;
            font-size: 10px;
            padding: 2px 10px;
            border-radius: 20px;
            font-weight: 600;
            letter-spacing: 0.3px;
            flex-shrink: 0;
        }
        .sidebar-nav a .badge.hot {
            background: #e67e22;
        }
        .sidebar-nav a .badge.new {
            background: #2ecc71;
        }
        .sidebar-footer-link {
            padding: 16px 24px 0;
            border-top: 1px solid rgba(255,255,255,0.05);
            margin-top: auto;
        }
        .sidebar-footer-link a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(255,255,255,0.35);
            padding: 8px 0;
        }
        .sidebar-footer-link a:hover {
            color: rgba(255,255,255,0.7);
        }
        /* ===== 主内容区 ===== */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            padding: 40px 48px 60px;
            min-height: 100vh;
        }
        .container-custom {
            max-width: 1100px;
            margin: 0 auto;
            width: 100%;
        }
        /* ===== 面包屑 ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 32px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-muted);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            opacity: 0.4;
        }
        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
        }
        /* ===== 文章头部 ===== */
        .article-header {
            margin-bottom: 32px;
        }
        .article-header .category-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 20px;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .article-header h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: var(--text-muted);
            align-items: center;
        }
        .article-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .article-meta i {
            font-size: 14px;
            color: var(--text-muted);
        }
        .article-meta .divider {
            width: 1px;
            height: 16px;
            background: var(--border-color);
            opacity: 0.3;
        }
        /* ===== 文章特色图 ===== */
        .article-featured-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 36px;
            box-shadow: var(--shadow-md);
            position: relative;
            background: var(--bg-card);
        }
        .article-featured-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            display: block;
            transition: transform 0.6s ease;
        }
        .article-featured-image:hover img {
            transform: scale(1.02);
        }
        .article-featured-image .image-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(transparent, rgba(0,0,0,0.3));
            pointer-events: none;
        }
        /* ===== 文章正文 ===== */
        .article-body {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 40px 44px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 36px;
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-body p {
            margin-bottom: 20px;
        }
        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 40px 0 16px;
            color: var(--text-primary);
            border-left: 4px solid var(--primary);
            padding-left: 16px;
        }
        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 32px 0 12px;
            color: var(--text-primary);
        }
        .article-body ul, .article-body ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }
        .article-body a:hover {
            color: var(--primary-dark);
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(230,57,70,0.04);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-secondary);
        }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-body .content-image-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin: 24px 0;
        }
        .article-body .content-image-grid img {
            margin: 0;
        }
        /* ===== 文章标签 ===== */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 36px;
            padding-top: 8px;
        }
        .article-tags .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(230,57,70,0.06);
            color: var(--primary);
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: 20px;
            border: 1px solid rgba(230,57,70,0.12);
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: rgba(230,57,70,0.12);
            border-color: rgba(230,57,70,0.25);
        }
        /* ===== CTA ===== */
        .article-cta {
            background: linear-gradient(135deg, var(--bg-sidebar), var(--secondary));
            border-radius: var(--radius-md);
            padding: 40px 48px;
            margin-bottom: 40px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
            box-shadow: var(--shadow-md);
        }
        .article-cta .cta-text h3 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .article-cta .cta-text p {
            font-size: 15px;
            opacity: 0.8;
            color: rgba(255,255,255,0.85);
        }
        .article-cta .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 30px;
            transition: var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(230,57,70,0.35);
        }
        .article-cta .cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230,57,70,0.45);
        }
        /* ===== 相关文章 ===== */
        .related-section {
            margin-bottom: 40px;
        }
        .related-section .section-title {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 24px;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .related-section .section-title i {
            color: var(--primary);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .related-card .card-img {
            height: 160px;
            overflow: hidden;
            position: relative;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .related-card:hover .card-img img {
            transform: scale(1.06);
        }
        .related-card .card-img .card-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(230,57,70,0.9);
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 12px;
            backdrop-filter: blur(4px);
        }
        .related-card .card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .card-body h4 {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body .card-meta {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: auto;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-card .card-body .card-meta i {
            font-size: 12px;
        }
        /* ===== 文章导航 ===== */
        .article-nav {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 16px;
        }
        .article-nav a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 10px 20px;
            background: #fff;
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .article-nav a:hover {
            color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }
        .article-nav a i {
            font-size: 14px;
        }
        /* ===== 内容未找到 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
        }
        .not-found-box .nf-icon {
            font-size: 64px;
            color: var(--text-muted);
            opacity: 0.3;
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            font-size: 16px;
            margin-bottom: 24px;
        }
        .not-found-box .back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 15px;
            transition: var(--transition);
        }
        .not-found-box .back-home:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230,57,70,0.3);
        }
        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-sidebar);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 32px;
            margin-left: var(--sidebar-width);
            border-top: 1px solid rgba(255,255,255,0.04);
        }
        .footer .container-custom {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 48px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        .footer-brand .logo-text span {
            color: var(--primary-light);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255,255,255,0.5);
            max-width: 360px;
        }
        .footer-col h5 {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255,255,255,0.5);
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.05);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }
        /* ===== 响应式 ===== */
        @media (max-width: 1200px) {
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 1024px) {
            .main-content {
                padding: 32px 28px 48px;
            }
            .footer .container-custom {
                padding: 0 28px;
            }
            .article-header h1 {
                font-size: 28px;
            }
            .article-body {
                padding: 28px 28px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .app-shell {
                flex-direction: column;
            }
            .sidebar {
                position: relative;
                width: 100%;
                height: auto;
                min-height: unset;
                padding: 12px 16px;
                flex-direction: row;
                align-items: center;
                flex-wrap: wrap;
                border-right: none;
                border-bottom: 1px solid rgba(255,255,255,0.06);
                box-shadow: 0 2px 12px rgba(0,0,0,0.2);
                overflow: visible;
            }
            .sidebar-logo {
                padding: 0;
                border-bottom: none;
                margin-bottom: 0;
                flex-shrink: 0;
            }
            .sidebar-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }
            .sidebar-logo .logo-text {
                font-size: 16px;
            }
            .nav-label {
                display: none;
            }
            .sidebar-nav {
                flex-direction: row;
                overflow-x: auto;
                padding: 0 12px;
                gap: 4px;
                flex: 1;
                flex-wrap: nowrap;
                -webkit-overflow-scrolling: touch;
            }
            .sidebar-nav a {
                padding: 8px 14px;
                font-size: 13px;
                white-space: nowrap;
                flex-shrink: 0;
            }
            .sidebar-nav a .badge {
                display: none;
            }
            .sidebar-footer-link {
                display: none;
            }
            .main-content {
                margin-left: 0;
                padding: 24px 18px 40px;
            }
            .footer {
                margin-left: 0;
                padding: 36px 0 24px;
            }
            .footer .container-custom {
                padding: 0 18px;
            }
            .article-header h1 {
                font-size: 24px;
            }
            .article-featured-image img {
                height: 220px;
            }
            .article-body {
                padding: 20px 18px;
                font-size: 15px;
            }
            .article-body h2 {
                font-size: 20px;
            }
            .article-body h3 {
                font-size: 17px;
            }
            .article-body .content-image-grid {
                grid-template-columns: 1fr;
            }
            .article-cta {
                padding: 28px 24px;
                flex-direction: column;
                text-align: center;
            }
            .article-cta .cta-btn {
                width: 100%;
                justify-content: center;
            }
            .related-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .related-card .card-img {
                height: 130px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
            .article-meta .divider {
                display: none;
            }
            .breadcrumb {
                font-size: 12px;
                margin-bottom: 20px;
            }
            .article-nav a {
                font-size: 13px;
                padding: 8px 16px;
                flex: 1;
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .main-content {
                padding: 16px 12px 32px;
            }
            .sidebar-nav a {
                padding: 6px 10px;
                font-size: 12px;
            }
            .sidebar-logo .logo-text {
                font-size: 14px;
            }
            .sidebar-logo .logo-icon {
                width: 28px;
                height: 28px;
                font-size: 14px;
            }
            .article-header h1 {
                font-size: 20px;
            }
            .article-featured-image img {
                height: 180px;
            }
            .article-body {
                padding: 16px 14px;
                font-size: 14px;
                border-radius: var(--radius-sm);
            }
            .article-body h2 {
                font-size: 18px;
                padding-left: 12px;
            }
            .article-body h3 {
                font-size: 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-card .card-img {
                height: 180px;
            }
            .article-cta {
                padding: 24px 18px;
            }
            .article-cta .cta-text h3 {
                font-size: 18px;
            }
            .article-cta .cta-btn {
                padding: 12px 24px;
                font-size: 14px;
            }
            .article-tags .tag {
                font-size: 12px;
                padding: 4px 12px;
            }
            .breadcrumb {
                font-size: 11px;
                gap: 4px;
            }
            .article-nav {
                flex-direction: column;
            }
            .article-nav a {
                width: 100%;
            }
            .footer .container-custom {
                padding: 0 12px;
            }
            .not-found-box {
                padding: 40px 16px;
            }
            .not-found-box .nf-icon {
                font-size: 48px;
            }
            .not-found-box h2 {
                font-size: 22px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #e50914;
            --primary-light: #fce4e6;
            --accent: #0d1b2a;
            --surface: #f8f9fa;
            --card-bg: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-muted: #8e8ea0;
            --border-color: #e8e8f0;
            --shadow-card: 0 2px 16px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12);
            --radius: 12px;
            --radius-lg: 20px;
            --sidebar-width: 260px;
            --header-height: 0px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            background: var(--surface);
            color: var(--text-primary);
            line-height: 1.7;
            display: flex;
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }
        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }
        /* ===== Sidebar ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--accent);
            color: #fff;
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
            transition: var(--transition);
        }
        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .logo-text span {
            color: var(--primary);
        }
        .sidebar-nav {
            padding: 16px 12px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: rgba(255, 255, 255, 0.3);
            padding: 8px 12px 6px;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 10px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            margin-bottom: 2px;
            position: relative;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }
        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .sidebar-nav a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(229, 9, 20, 0.35);
        }
        .sidebar-nav a .badge {
            margin-left: auto;
            font-size: 10px;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 20px;
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            letter-spacing: 0.3px;
        }
        .sidebar-nav a.active .badge {
            background: rgba(255, 255, 255, 0.25);
        }
        /* ===== Main Content ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 70px;
            background: var(--accent);
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 42, 0.92) 0%, rgba(13, 27, 42, 0.7) 100%);
            z-index: 1;
        }
        .page-banner .container-custom {
            position: relative;
            z-index: 2;
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-banner h1 span {
            color: var(--primary);
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 620px;
            line-height: 1.7;
        }
        .page-banner .breadcrumb {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 20px;
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.6);
        }
        .page-banner .breadcrumb a:hover {
            color: #fff;
        }
        .page-banner .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.25);
        }
        /* ===== Sections ===== */
        .section {
            padding: 70px 0;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.7;
        }
        /* ===== Cards ===== */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 24px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-tag {
            display: inline-block;
            font-size: 11px;
            font-weight: 700;
            padding: 3px 12px;
            border-radius: 20px;
            background: var(--primary-light);
            color: var(--primary);
            letter-spacing: 0.3px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }
        .card-footer-link {
            padding-top: 14px;
            margin-top: auto;
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .card-footer-link i {
            font-size: 12px;
            transition: var(--transition);
        }
        .card-footer-link:hover i {
            transform: translateX(4px);
        }
        /* ===== Grid ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        /* ===== Steps ===== */
        .step-item {
            display: flex;
            gap: 20px;
            padding: 28px 24px;
            background: var(--card-bg);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-card);
        }
        .step-num {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
        }
        .step-content h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .step-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        /* ===== FAQ ===== */
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 18px 0;
        }
        .faq-item:first-child {
            padding-top: 0;
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            padding: 6px 0;
            user-select: none;
        }
        .faq-question h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            flex: 1;
            padding-right: 16px;
        }
        .faq-question i {
            color: var(--text-muted);
            font-size: 14px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question.active i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px 0 0;
        }
        .faq-answer.open {
            max-height: 300px;
            padding-top: 12px;
            padding-bottom: 6px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        /* ===== CTA ===== */
        .cta-section {
            background: var(--accent);
            padding: 70px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: -0.3px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 700;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 20px rgba(229, 9, 20, 0.35);
        }
        .btn-primary:hover {
            background: #c50812;
            box-shadow: 0 8px 32px rgba(229, 9, 20, 0.45);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.25);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }
        /* ===== Footer ===== */
        .footer {
            background: var(--accent);
            color: #fff;
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-text {
            font-size: 24px;
            margin-bottom: 14px;
            display: block;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            max-width: 360px;
        }
        .footer-col h5 {
            font-size: 13px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: rgba(255, 255, 255, 0.4);
            margin-bottom: 18px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            padding: 5px 0;
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        /* ===== Mobile Toggle ===== */
        .mobile-toggle {
            display: none;
            position: fixed;
            top: 16px;
            left: 16px;
            z-index: 1100;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--accent);
            color: #fff;
            border: none;
            font-size: 20px;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            align-items: center;
            justify-content: center;
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            backdrop-filter: blur(4px);
        }
        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-banner h1 {
                font-size: 34px;
            }
        }
        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay.open {
                display: block;
            }
            .mobile-toggle {
                display: flex;
            }
            .main-content {
                margin-left: 0;
            }
            .container-custom {
                padding: 0 20px;
            }
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .section {
                padding: 50px 0;
            }
            .page-banner {
                padding: 60px 0 50px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 15px;
            }
            .section-title {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .step-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .step-num {
                width: 40px;
                height: 40px;
                font-size: 17px;
            }
        }
        @media (max-width: 520px) {
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .container-custom {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 22px;
            }
            .card-body {
                padding: 18px 16px 16px;
            }
            .btn {
                padding: 12px 28px;
                font-size: 15px;
            }
            .logo-text {
                font-size: 19px;
            }
        }
        /* ===== Scrollbar ===== */
        .sidebar::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }
        /* ===== Animations ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-up {
            animation: fadeUp 0.6s ease forwards;
        }
        .animate-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-delay-3 {
            animation-delay: 0.3s;
        }
        .animate-delay-4 {
            animation-delay: 0.4s;
        }