/* roulang page: index */
/* ========== 设计变量 ========== */
        :root {
            --primary: #1a3a5c;
            --primary-dark: #0f2440;
            --primary-light: #2a5a8c;
            --secondary: #e8972e;
            --secondary-light: #f0b85c;
            --accent: #e85d3a;
            --bg-light: #f5f7fa;
            --bg-white: #ffffff;
            --text-dark: #1a1a2e;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --border-color: #e5e7eb;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --sidebar-width: 240px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ========== Reset & Base ========== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-family);
            background: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.7;
            font-size: 1rem;
        }
        a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--primary); }
        a:focus-visible { outline: 2px solid var(--secondary); outline-offset: 2px; border-radius: 2px; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text-dark); }
        p { margin-bottom: 0.5rem; color: var(--text-muted); }

        /* ========== Layout: App Shell ========== */
        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        /* ========== Sidebar ========== */
        .sidebar {
            width: var(--sidebar-width);
            background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary) 100%);
            color: #fff;
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 1050;
            transition: transform var(--transition), box-shadow var(--transition);
            box-shadow: 2px 0 20px rgba(0,0,0,0.15);
            overflow-y: auto;
        }
        .sidebar-brand {
            padding: 1.5rem 1.25rem 1rem;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .sidebar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--secondary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: #fff;
            flex-shrink: 0;
        }
        .sidebar-brand .brand-text {
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: #fff;
            line-height: 1.2;
        }
        .sidebar-nav {
            padding: 1.25rem 0;
            flex: 1;
        }
        .sidebar-nav .nav-item {
            display: block;
            width: 100%;
        }
        .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.7rem 1.5rem;
            color: rgba(255,255,255,0.75);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition);
            border-left: 3px solid transparent;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            cursor: pointer;
        }
        .sidebar-nav .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 1rem;
            color: rgba(255,255,255,0.5);
            transition: color var(--transition);
        }
        .sidebar-nav .nav-link:hover {
            background: rgba(255,255,255,0.08);
            color: #fff;
            border-left-color: var(--secondary);
        }
        .sidebar-nav .nav-link:hover i {
            color: var(--secondary-light);
        }
        .sidebar-nav .nav-link.active {
            background: rgba(255,255,255,0.12);
            color: #fff;
            border-left-color: var(--secondary);
            font-weight: 600;
        }
        .sidebar-nav .nav-link.active i {
            color: var(--secondary-light);
        }
        .sidebar-footer {
            padding: 1rem 1.5rem;
            border-top: 1px solid rgba(255,255,255,0.08);
            font-size: 0.75rem;
            color: rgba(255,255,255,0.4);
            text-align: center;
        }

        /* ========== Main Content ========== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ========== Mobile Top Bar ========== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: var(--primary-dark);
            padding: 0.6rem 1rem;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 2px 12px rgba(0,0,0,0.15);
        }
        .mobile-topbar .brand-text-sm {
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
        }
        .mobile-topbar .hamburger {
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 0.25rem 0.5rem;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .mobile-topbar .hamburger:hover { background: rgba(255,255,255,0.1); }
        .mobile-topbar .hamburger:focus-visible { outline: 2px solid var(--secondary); }

        /* ========== Overlay ========== */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.45);
            z-index: 1045;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .sidebar-overlay.show {
            opacity: 1;
        }

        /* ========== Container ========== */
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ========== Section Spacing ========== */
        .section-pad {
            padding: 4.5rem 0;
        }
        .section-pad-sm {
            padding: 2.5rem 0;
        }

        /* ========== Hero ========== */
        .hero {
            position: relative;
            padding: 5rem 0 5.5rem;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #2a5a8c 100%);
            overflow: hidden;
            min-height: 480px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 80px;
            background: linear-gradient(to top, var(--bg-light), transparent);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
            color: #fff;
        }
        .hero h1 {
            font-size: 2.75rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
            letter-spacing: -0.5px;
        }
        .hero h1 .highlight {
            color: var(--secondary);
        }
        .hero .hero-sub {
            font-size: 1.2rem;
            color: rgba(255,255,255,0.85);
            margin-bottom: 2rem;
            font-weight: 400;
            max-width: 600px;
        }
        .hero .hero-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }
        .hero .hero-actions .btn-hero {
            padding: 0.8rem 2.2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .hero .hero-actions .btn-primary-custom {
            background: var(--secondary);
            color: var(--primary-dark);
        }
        .hero .hero-actions .btn-primary-custom:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(232,151,46,0.35);
        }
        .hero .hero-actions .btn-outline-custom {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255,255,255,0.4);
        }
        .hero .hero-actions .btn-outline-custom:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            transform: translateY(-2px);
            background: rgba(232,151,46,0.08);
        }
        .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 2.5rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.15);
        }
        .hero-stats .stat-item {
            text-align: left;
        }
        .hero-stats .stat-number {
            font-size: 1.75rem;
            font-weight: 800;
            color: #fff;
            display: block;
            line-height: 1.1;
        }
        .hero-stats .stat-label {
            font-size: 0.85rem;
            color: rgba(255,255,255,0.6);
            margin-top: 0.15rem;
        }

        /* ========== Section Titles ========== */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 2.5rem;
        }
        .section-title-center {
            text-align: center;
        }
        .section-subtitle-center {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        /* ========== Cards ========== */
        .card-custom {
            background: var(--bg-white);
            border: none;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-custom .card-body {
            padding: 1.75rem 1.5rem;
        }
        .card-custom .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: rgba(26,58,92,0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 1rem;
            transition: all var(--transition);
        }
        .card-custom:hover .card-icon {
            background: var(--primary);
            color: #fff;
        }
        .card-custom .card-title {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .card-custom .card-text {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.6;
        }

        /* ========== Feature Cards ========== */
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 2rem 1.5rem;
            text-align: center;
            transition: all var(--transition);
            height: 100%;
            border: 1px solid var(--border-color);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .feature-card .feat-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin: 0 auto 1rem;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
        }
        .feature-card h5 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ========== Step / Process ========== */
        .step-wrapper {
            display: flex;
            gap: 2rem;
            counter-reset: step;
        }
        .step-item {
            flex: 1;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-sm);
            text-align: center;
            position: relative;
            transition: all var(--transition);
            border: 1px solid var(--border-color);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-item .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.15rem;
            margin: 0 auto 1rem;
        }
        .step-item h5 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.4rem;
        }
        .step-item p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .step-connector {
            display: flex;
            align-items: center;
            color: var(--text-light);
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        /* ========== Badge ========== */
        .badge-custom {
            display: inline-block;
            padding: 0.25rem 0.9rem;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 500;
            background: rgba(26,58,92,0.08);
            color: var(--primary);
            margin-bottom: 0.75rem;
        }
        .badge-secondary {
            background: rgba(232,151,46,0.12);
            color: var(--secondary);
        }

        /* ========== Stats Block ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-block {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .stat-block:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-block .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.1;
        }
        .stat-block .stat-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 0.3rem;
        }

        /* ========== FAQ ========== */
        .faq-accordion .accordion-item {
            border: none;
            margin-bottom: 0.75rem;
            border-radius: var(--radius-md) !important;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .faq-accordion .accordion-header {
            border: none;
        }
        .faq-accordion .accordion-button {
            background: var(--bg-white);
            color: var(--text-dark);
            font-weight: 600;
            font-size: 1rem;
            padding: 1.1rem 1.5rem;
            border: none;
            box-shadow: none;
            border-radius: var(--radius-md);
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-white);
            color: var(--primary);
            box-shadow: none;
        }
        .faq-accordion .accordion-button::after {
            background-size: 1rem;
            transition: transform var(--transition);
        }
        .faq-accordion .accordion-button:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: -2px;
        }
        .faq-accordion .accordion-body {
            padding: 0 1.5rem 1.2rem;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #2a5a8c 100%);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 3.5rem 0;
            color: #fff;
        }
        .cta-content h2 {
            color: #fff;
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .cta-content p {
            color: rgba(255,255,255,0.8);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 1.75rem;
        }
        .cta-content .btn-cta {
            padding: 0.85rem 2.8rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            background: var(--secondary);
            color: var(--primary-dark);
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .cta-content .btn-cta:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232,151,46,0.35);
        }

        /* ========== Testimonial / Review ========== */
        .testimonial-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            height: 100%;
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .testimonial-card .quote-icon {
            color: var(--secondary);
            font-size: 1.5rem;
            margin-bottom: 0.75rem;
            opacity: 0.6;
        }
        .testimonial-card .quote-text {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 1.25rem;
            font-style: italic;
        }
        .testimonial-card .quote-author {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .testimonial-card .quote-author .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 0.9rem;
        }
        .testimonial-card .quote-author .name {
            font-weight: 600;
            font-size: 0.9rem;
        }
        .testimonial-card .quote-author .role {
            font-size: 0.8rem;
            color: var(--text-light);
        }

        /* ========== Blog / CMS List ========== */
        .blog-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            border: 1px solid var(--border-color);
        }
        .blog-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .blog-card .blog-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            background: var(--border-color);
        }
        .blog-card .blog-body {
            padding: 1.25rem 1.5rem 1.5rem;
        }
        .blog-card .blog-meta {
            display: flex;
            gap: 0.75rem;
            font-size: 0.78rem;
            color: var(--text-light);
            margin-bottom: 0.5rem;
            align-items: center;
        }
        .blog-card .blog-meta .cat-badge {
            background: rgba(26,58,92,0.08);
            color: var(--primary);
            padding: 0.1rem 0.6rem;
            border-radius: 50px;
            font-weight: 500;
        }
        .blog-card .blog-title {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.4rem;
            line-height: 1.4;
        }
        .blog-card .blog-title a {
            color: var(--text-dark);
            transition: color var(--transition);
        }
        .blog-card .blog-title a:hover {
            color: var(--primary);
        }
        .blog-card .blog-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255,255,255,0.7);
            padding: 3rem 0 1.5rem;
            margin-top: auto;
        }
        .site-footer .footer-brand {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .site-footer .footer-brand .brand-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--secondary);
        }
        .site-footer .footer-desc {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.5);
            max-width: 320px;
            line-height: 1.6;
        }
        .site-footer .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-bottom: 1rem;
        }
        .site-footer .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 0.88rem;
            transition: color var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--secondary);
        }
        .site-footer .footer-divider {
            border-color: rgba(255,255,255,0.08);
            margin: 1.5rem 0;
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.75rem;
        }
        .site-footer .footer-copy {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.35);
        }
        .site-footer .footer-social {
            display: flex;
            gap: 0.75rem;
        }
        .site-footer .footer-social a {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255,255,255,0.5);
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: var(--secondary);
            color: #fff;
        }

        /* ========== Buttons (generic) ========== */
        .btn-custom {
            padding: 0.6rem 1.8rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn-custom-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-custom-primary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26,58,92,0.25);
            color: #fff;
        }
        .btn-custom-secondary {
            background: var(--secondary);
            color: var(--primary-dark);
        }
        .btn-custom-secondary:hover {
            background: var(--secondary-light);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }
        .btn-custom-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-custom-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ========== Image showcase ========== */
        .img-showcase {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            transition: all var(--transition);
        }
        .img-showcase:hover {
            box-shadow: var(--shadow-lg);
            transform: scale(1.01);
        }

        /* ========== Responsive ========== */
        @media (max-width: 991.98px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: 4px 0 40px rgba(0,0,0,0.3);
            }
            .main-content {
                margin-left: 0;
                padding-top: 60px;
            }
            .mobile-topbar {
                display: flex;
            }
            .sidebar-overlay.show {
                display: block;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero .hero-sub {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 1.5rem;
                flex-wrap: wrap;
            }
            .hero-stats .stat-number {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .step-wrapper {
                flex-direction: column;
                gap: 1rem;
            }
            .step-connector {
                transform: rotate(90deg);
                padding: 0.25rem 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
        }

        @media (max-width: 767.98px) {
            .hero {
                padding: 3rem 0 3.5rem;
                min-height: 360px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero .hero-sub {
                font-size: 0.9rem;
                margin-bottom: 1.25rem;
            }
            .hero .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero .hero-actions .btn-hero {
                justify-content: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 0.75rem;
                padding-top: 1.25rem;
                margin-top: 1.5rem;
            }
            .section-pad {
                padding: 2.5rem 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.92rem;
                margin-bottom: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0.75rem;
            }
            .stat-block .stat-num {
                font-size: 1.6rem;
            }
            .cta-content h2 {
                font-size: 1.5rem;
            }
            .cta-content p {
                font-size: 0.92rem;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .container-custom {
                padding: 0 1rem;
            }
            .feature-card {
                padding: 1.5rem 1rem;
            }
            .blog-card .blog-img {
                height: 160px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 1.3rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stat-block {
                padding: 1.25rem 0.75rem;
            }
            .stat-block .stat-num {
                font-size: 1.3rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .testimonial-card {
                padding: 1.25rem 1rem;
            }
            .site-footer .footer-links {
                gap: 1rem;
            }
        }

        /* ========== Accessibility & Utilities ========== */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            border: 0;
        }
        .text-secondary-custom { color: var(--secondary); }
        .bg-primary-custom { background: var(--primary); }
        .bg-light-custom { background: var(--bg-light); }

        /* ========== Loading state for CMS ========== */
        .cms-empty {
            padding: 2rem;
            text-align: center;
            color: var(--text-muted);
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }
        .cms-empty i {
            font-size: 2rem;
            margin-bottom: 0.5rem;
            color: var(--text-light);
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a4a;
            --primary-light: #2c4068;
            --primary-dark: #0f1a30;
            --accent: #d4a853;
            --accent-light: #e8c87a;
            --accent-dark: #b8913a;
            --bg-body: #f7f5f0;
            --bg-card: #ffffff;
            --bg-sidebar: #0f1a30;
            --bg-soft: #efece5;
            --text-primary: #1a1a1a;
            --text-secondary: #4a4a4a;
            --text-light: #7a7a7a;
            --text-white: #f0ede8;
            --border-color: #e0dcd5;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 28px rgba(0,0,0,0.07);
            --shadow-lg: 0 20px 50px rgba(0,0,0,0.10);
            --transition: 0.25s ease;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --sidebar-width: 240px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 1rem;
            display: flex;
            min-height: 100vh;
        }
        a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; }

        /* ===== 左侧导航 ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-sidebar);
            color: var(--text-white);
            display: flex;
            flex-direction: column;
            z-index: 1050;
            transition: transform var(--transition);
            box-shadow: 2px 0 20px rgba(0,0,0,0.15);
        }
        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 28px 20px 20px;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .brand-icon {
            width: 42px;
            height: 42px;
            background: var(--accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--primary-dark);
            flex-shrink: 0;
        }
        .brand-text {
            font-size: 1.05rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            line-height: 1.3;
            color: var(--text-white);
        }
        .sidebar-nav {
            flex: 1;
            padding: 20px 14px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: rgba(240,237,232,0.7);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition);
            border: none;
            background: transparent;
        }
        .nav-link i { width: 20px; text-align: center; font-size: 1.05rem; }
        .nav-link:hover { background: rgba(212,168,83,0.12); color: var(--accent-light); }
        .nav-link.active { background: rgba(212,168,83,0.18); color: var(--accent); font-weight: 600; }
        .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid rgba(255,255,255,0.06);
            font-size: 0.78rem;
            color: rgba(240,237,232,0.45);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-footer i { font-size: 0.7rem; }

        /* ===== 主内容区 ===== */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content { flex: 1; }

        /* ===== Container ===== */
        .container-custom {
            max-width: 880px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-wide {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Hero 文章头图 ===== */
        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            min-height: 340px;
            display: flex;
            align-items: center;
            background: var(--primary-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            border-bottom: 4px solid var(--accent);
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15,26,48,0.82) 0%, rgba(26,42,74,0.70) 100%);
        }
        .article-hero .container-custom { position: relative; z-index: 2; width: 100%; }
        .article-hero .hero-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.03em;
            margin-bottom: 16px;
        }
        .article-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            max-width: 800px;
        }
        .article-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: rgba(240,237,232,0.7);
            font-size: 0.9rem;
        }
        .article-hero .hero-meta i { margin-right: 6px; color: var(--accent); }

        /* ===== 文章正文 ===== */
        .article-body {
            padding: 48px 0 40px;
            background: #fff;
        }
        .article-body .content-area {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-body .content-area h2,
        .article-body .content-area h3,
        .article-body .content-area h4 {
            margin-top: 2em;
            margin-bottom: 0.8em;
            font-weight: 700;
            color: var(--primary);
        }
        .article-body .content-area h2 { font-size: 1.65rem; }
        .article-body .content-area h3 { font-size: 1.3rem; }
        .article-body .content-area p { margin-bottom: 1.2em; }
        .article-body .content-area ul, 
        .article-body .content-area ol { margin-bottom: 1.2em; padding-left: 1.8em; }
        .article-body .content-area li { margin-bottom: 0.4em; }
        .article-body .content-area a { color: var(--accent-dark); text-decoration: underline; }
        .article-body .content-area a:hover { color: var(--primary); }
        .article-body .content-area blockquote {
            border-left: 4px solid var(--accent);
            padding: 12px 20px;
            margin: 1.5em 0;
            background: var(--bg-soft);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body .content-area img { border-radius: var(--radius-md); margin: 1.5em 0; box-shadow: var(--shadow-sm); }
        .article-body .content-area code {
            background: var(--bg-soft);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
        }
        .article-body .content-area hr {
            margin: 2em 0;
            border: 0;
            height: 1px;
            background: var(--border-color);
        }
        .article-body .content-not-found {
            text-align: center;
            padding: 60px 20px;
        }
        .article-body .content-not-found i {
            font-size: 3rem;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .article-body .content-not-found h3 {
            font-size: 1.5rem;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }
        .article-body .content-not-found p { color: var(--text-light); }
        .article-body .content-not-found a { color: var(--accent-dark); font-weight: 600; }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 56px 0;
            background: var(--bg-soft);
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .related-section .section-sub {
            color: var(--text-light);
            font-size: 0.95rem;
            margin-bottom: 32px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            border: 1px solid var(--border-color);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
        .related-card .card-img {
            height: 180px;
            background: var(--primary-light);
            overflow: hidden;
        }
        .related-card .card-img img { width: 100%; height: 100%; object-fit: cover; border-radius: 0; }
        .related-card .card-body { padding: 20px 22px 24px; }
        .related-card .card-body h5 { font-size: 1.1rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
        .related-card .card-body p { font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 0; line-height: 1.6; }
        .related-card .card-tag {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 12px;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 60px 0;
            background: var(--primary);
            color: #fff;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(240,237,232,0.8);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            padding: 14px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition);
            border: none;
        }
        .cta-section .btn-cta:hover { background: var(--accent-light); transform: scale(1.02); box-shadow: 0 8px 28px rgba(212,168,83,0.35); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-sidebar);
            color: rgba(240,237,232,0.7);
            padding: 48px 0 30px;
            font-size: 0.9rem;
        }
        .site-footer .container-custom { max-width: 1120px; }
        .footer-brand {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }
        .brand-dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .footer-desc { color: rgba(240,237,232,0.6); max-width: 320px; font-size: 0.9rem; line-height: 1.7; }
        .footer-links { display: flex; flex-direction: column; gap: 10px; }
        .footer-links a { color: rgba(240,237,232,0.65); font-size: 0.9rem; transition: color var(--transition); }
        .footer-links a:hover { color: var(--accent); }
        .footer-social { display: flex; gap: 16px; }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(240,237,232,0.6);
            transition: all var(--transition);
            font-size: 1.1rem;
        }
        .footer-social a:hover { background: var(--accent); color: var(--primary-dark); }
        .footer-divider { border-color: rgba(255,255,255,0.06); margin: 24px 0 20px; }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: rgba(240,237,232,0.4);
        }
        .footer-copy i { margin-right: 4px; }

        /* ===== 移动端导航切换 ===== */
        .sidebar-toggle {
            display: none;
            position: fixed;
            top: 14px;
            left: 14px;
            z-index: 1060;
            background: var(--primary);
            color: #fff;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 1.2rem;
            cursor: pointer;
            box-shadow: var(--shadow-md);
            transition: background var(--transition);
        }
        .sidebar-toggle:hover { background: var(--primary-light); }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 1045;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .sidebar-toggle { display: flex; align-items: center; justify-content: center; }
            .sidebar { transform: translateX(-100%); }
            .sidebar.open { transform: translateX(0); }
            .sidebar-overlay.show { display: block; }
            .main-wrapper { margin-left: 0; }
            .article-hero h1 { font-size: 1.9rem; }
            .article-hero { padding: 60px 0 48px; min-height: 280px; }
        }
        @media (max-width: 768px) {
            .article-hero h1 { font-size: 1.5rem; }
            .article-hero { padding: 44px 0 36px; min-height: 220px; }
            .article-body .content-area { font-size: 0.98rem; }
            .related-section .section-title { font-size: 1.3rem; }
            .cta-section h2 { font-size: 1.4rem; }
            .cta-section p { font-size: 0.95rem; }
            .container-custom { padding: 0 18px; }
            .container-wide { padding: 0 18px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.25rem; }
            .article-hero .hero-meta { font-size: 0.8rem; gap: 12px; flex-direction: column; }
            .sidebar { width: 100%; max-width: 300px; }
            .related-card .card-img { height: 140px; }
            .cta-section { padding: 40px 0; }
            .cta-section .btn-cta { padding: 12px 28px; font-size: 0.95rem; }
        }

        /* ===== 按钮通用 ===== */
        .btn-outline-accent {
            display: inline-block;
            border: 2px solid var(--accent);
            color: var(--accent);
            padding: 10px 28px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            background: transparent;
            transition: all var(--transition);
        }
        .btn-outline-accent:hover { background: var(--accent); color: var(--primary-dark); }

        /* ===== 标签 ===== */
        .tag-sm {
            display: inline-block;
            background: var(--bg-soft);
            color: var(--text-secondary);
            font-size: 0.75rem;
            padding: 2px 12px;
            border-radius: 12px;
            font-weight: 500;
        }

        /* ===== 辅助 ===== */
        .text-accent { color: var(--accent); }
        .bg-soft { background: var(--bg-soft); }

/* roulang page: category1 */
/* ===== CSS 设计变量 ===== */
        :root {
            --primary: #0f1a2e;
            --primary-light: #1a2d4a;
            --primary-dark: #0a1220;
            --accent: #c9a94e;
            --accent-light: #dfc06a;
            --accent-dark: #a88a3a;
            --bg-body: #f7f8fa;
            --bg-card: #ffffff;
            --bg-soft: #eef0f4;
            --bg-dark: #0f1a2e;
            --text-primary: #1a2332;
            --text-secondary: #4a5568;
            --text-muted: #8a94a6;
            --text-light: #f0f2f5;
            --text-accent: #c9a94e;
            --border-color: #e2e6ee;
            --border-light: #f0f2f6;
            --shadow-sm: 0 2px 8px rgba(15, 26, 46, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 26, 46, 0.08);
            --shadow-lg: 0 16px 40px rgba(15, 26, 46, 0.12);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --sidebar-width: 240px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover,
        a:focus-visible {
            color: var(--accent-dark);
            text-decoration: underline;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        /* ===== 容器 ===== */
        .container-custom {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 左侧导航 ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary);
            color: var(--text-light);
            display: flex;
            flex-direction: column;
            z-index: 1050;
            border-right: 1px solid rgba(255, 255, 255, 0.05);
            overflow-y: auto;
            transition: var(--transition);
        }

        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 28px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .sidebar-brand .brand-icon {
            width: 44px;
            height: 44px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            flex-shrink: 0;
        }
        .sidebar-brand .brand-text {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.02em;
            color: #fff;
        }

        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav .nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.7);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            text-decoration: none;
            border: none;
            background: transparent;
        }
        .sidebar-nav .nav-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            flex-shrink: 0;
        }
        .sidebar-nav .nav-link:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            text-decoration: none;
        }
        .sidebar-nav .nav-link:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            color: #fff;
        }
        .sidebar-nav .nav-link.active {
            background: rgba(201, 169, 78, 0.15);
            color: var(--accent);
            font-weight: 600;
        }
        .sidebar-nav .nav-link.active i {
            color: var(--accent);
        }

        .sidebar-footer {
            padding: 16px 20px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.4);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .sidebar-footer i {
            font-size: 12px;
        }

        /* ===== 主内容区 ===== */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-content {
            flex: 1;
        }

        /* ===== 移动端顶部导航触发 ===== */
        .mobile-nav-trigger {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: var(--primary);
            padding: 12px 20px;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .mobile-nav-trigger .trigger-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 15px;
        }
        .mobile-nav-trigger .trigger-brand i {
            font-size: 18px;
            color: var(--accent);
        }
        .mobile-nav-trigger .btn-trigger {
            background: rgba(255, 255, 255, 0.1);
            border: none;
            color: #fff;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            cursor: pointer;
            transition: var(--transition);
        }
        .mobile-nav-trigger .btn-trigger:hover {
            background: rgba(255, 255, 255, 0.18);
        }
        .mobile-nav-trigger .btn-trigger:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Hero 区域 ===== */
        .hero-section {
            position: relative;
            padding: 100px 0 90px;
            background: var(--primary);
            overflow: hidden;
            min-height: 420px;
            display: flex;
            align-items: center;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 26, 46, 0.88) 40%, rgba(15, 26, 46, 0.6) 100%);
            z-index: 1;
        }
        .hero-section .container-custom {
            position: relative;
            z-index: 2;
        }
        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(201, 169, 78, 0.15);
            color: var(--accent);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 20px;
            border: 1px solid rgba(201, 169, 78, 0.2);
        }
        .hero-section .hero-badge i {
            font-size: 14px;
        }
        .hero-section h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .hero-section .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            line-height: 1.6;
            margin-bottom: 32px;
        }
        .hero-section .btn-hero {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            border-radius: 50px;
            border: none;
            transition: var(--transition);
            text-decoration: none;
            box-shadow: 0 4px 16px rgba(201, 169, 78, 0.3);
        }
        .hero-section .btn-hero:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(201, 169, 78, 0.4);
            text-decoration: none;
            color: var(--primary);
        }
        .hero-section .btn-hero:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 3px;
        }
        .hero-section .btn-hero i {
            font-size: 18px;
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 80px 0;
        }
        .section-block .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1.2px;
            text-transform: uppercase;
            color: var(--accent);
            margin-bottom: 8px;
        }
        .section-block .section-title {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .section-block .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.7;
        }
        .section-block .section-desc.text-center {
            margin-left: auto;
            margin-right: auto;
        }
        .section-block .text-center .section-desc {
            margin-left: auto;
            margin-right: auto;
        }
        .section-block.bg-soft {
            background: var(--bg-soft);
        }
        .section-block.bg-dark {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .section-block.bg-dark .section-title {
            color: #fff;
        }
        .section-block.bg-dark .section-desc {
            color: rgba(255, 255, 255, 0.75);
        }

        /* ===== 卡片通用 ===== */
        .card-custom {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-custom .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            display: block;
        }
        .card-custom .card-body {
            padding: 24px 20px 26px;
        }
        .card-custom .card-icon {
            width: 48px;
            height: 48px;
            background: rgba(201, 169, 78, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent);
            margin-bottom: 16px;
        }
        .card-custom .card-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .card-custom .card-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }
        .card-custom .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 50px;
            background: rgba(201, 169, 78, 0.1);
            color: var(--accent-dark);
            margin-bottom: 10px;
        }

        /* ===== 步骤流程 ===== */
        .step-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .step-item:last-child {
            border-bottom: none;
        }
        .step-item .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 800;
            font-size: 20px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .step-item .step-content {
            flex: 1;
        }
        .step-item .step-content h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .step-item .step-content p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-card);
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-item .faq-question:hover {
            background: rgba(201, 169, 78, 0.04);
        }
        .faq-item .faq-question:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }
        .faq-item .faq-question i {
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .faq-item .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--primary);
            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: 0.12;
            z-index: 0;
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 1;
        }
        .cta-section .cta-title {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .cta-section .cta-desc {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 40px;
            background: var(--accent);
            color: var(--primary);
            font-weight: 700;
            font-size: 16px;
            border-radius: 50px;
            border: none;
            transition: var(--transition);
            text-decoration: none;
            box-shadow: 0 4px 16px rgba(201, 169, 78, 0.25);
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(201, 169, 78, 0.35);
            text-decoration: none;
            color: var(--primary);
        }
        .cta-section .btn-cta:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 3px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }
        .site-footer .footer-brand {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand .brand-dot {
            width: 10px;
            height: 10px;
            background: var(--accent);
            border-radius: 50%;
            display: inline-block;
        }
        .site-footer .footer-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
            line-height: 1.7;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 15px;
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .site-footer .footer-social {
            display: flex;
            gap: 16px;
            margin-top: 8px;
        }
        .site-footer .footer-social a {
            width: 44px;
            height: 44px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 18px;
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-social a:hover {
            background: var(--accent);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .site-footer .footer-divider {
            border-color: rgba(255, 255, 255, 0.06);
            margin: 32px 0 20px;
        }
        .site-footer .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .site-footer .footer-copy {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-copy i {
            margin-right: 4px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-section h1 {
                font-size: 34px;
            }
            .section-block .section-title {
                font-size: 28px;
            }
            .cta-section .cta-title {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --sidebar-width: 0px;
            }

            .sidebar {
                transform: translateX(-100%);
                width: 280px;
                z-index: 1060;
            }
            .sidebar.open {
                transform: translateX(0);
            }

            .main-wrapper {
                margin-left: 0;
                padding-top: 64px;
            }

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

            .hero-section {
                padding: 64px 0 60px;
                min-height: auto;
            }
            .hero-section h1 {
                font-size: 28px;
            }
            .hero-section .hero-sub {
                font-size: 16px;
            }

            .section-block {
                padding: 56px 0;
            }
            .section-block .section-title {
                font-size: 24px;
            }
            .section-block .section-desc {
                font-size: 15px;
            }

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

            .step-item {
                flex-direction: column;
                gap: 12px;
                padding: 16px 0;
            }
            .step-item .step-number {
                width: 40px;
                height: 40px;
                font-size: 17px;
            }

            .faq-item .faq-question {
                padding: 14px 18px;
                font-size: 15px;
            }
            .faq-item .faq-answer {
                padding: 0 18px 16px;
                font-size: 14px;
            }

            .cta-section {
                padding: 56px 0;
            }
            .cta-section .cta-title {
                font-size: 24px;
            }

            .site-footer {
                padding: 40px 0 24px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer .footer-social {
                justify-content: center;
            }
            .site-footer .footer-links {
                flex-direction: row;
                flex-wrap: wrap;
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding: 0 16px;
            }

            .hero-section h1 {
                font-size: 24px;
            }
            .hero-section .hero-sub {
                font-size: 14px;
            }
            .hero-section .btn-hero {
                padding: 12px 28px;
                font-size: 14px;
            }

            .section-block .section-title {
                font-size: 21px;
            }

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

            .cta-section .btn-cta {
                padding: 12px 30px;
                font-size: 14px;
            }
        }

        /* ===== 辅助 ===== */
        .text-accent {
            color: var(--accent);
        }
        .bg-accent-soft {
            background: rgba(201, 169, 78, 0.08);
        }
        .gap-y-32 {
            row-gap: 32px;
        }
        .gap-y-24 {
            row-gap: 24px;
        }

        /* ===== 侧边栏遮罩 ===== */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1055;
        }
        .sidebar-overlay.show {
            display: block;
        }

        @media (max-width: 768px) {
            .sidebar-overlay.show {
                display: block;
            }
        }