/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a3a5c;
            --primary-dark: #0f2440;
            --primary-light: #2a5a8c;
            --accent: #e8852e;
            --accent-light: #f0a55a;
            --accent-dark: #c96a1a;
            --bg-dark: #0b1a2e;
            --bg-light: #f4f7fb;
            --bg-white: #ffffff;
            --text-dark: #1a2a3a;
            --text-body: #3a4a5a;
            --text-light: #6a7a8a;
            --text-white: #f0f4fa;
            --border-light: #e2e8f0;
            --border-mid: #c8d4e0;
            --shadow-sm: 0 2px 8px rgba(10, 30, 50, 0.06);
            --shadow-md: 0 6px 24px rgba(10, 30, 50, 0.10);
            --shadow-lg: 0 16px 48px rgba(10, 30, 50, 0.14);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container-max: 1280px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.25;
            margin-top: 0;
            letter-spacing: -0.01em;
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }
        ul,
        ol {
            padding-left: 1.25rem;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Utility ===== */
        .section-padding {
            padding: 5rem 0;
        }
        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            margin-bottom: 0.75rem;
            color: var(--text-dark);
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 2.5rem;
        }
        .text-accent {
            color: var(--accent);
        }
        .bg-primary-dark {
            background: var(--bg-dark);
        }
        .bg-light-custom {
            background: var(--bg-light);
        }
        .bg-white-custom {
            background: var(--bg-white);
        }
        .rounded-custom {
            border-radius: var(--radius-md);
        }
        .shadow-custom {
            box-shadow: var(--shadow-sm);
        }
        .shadow-custom-md {
            box-shadow: var(--shadow-md);
        }

        /* ===== Header / Navbar (Bootstrap 5 overrides) ===== */
        .custom-navbar {
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
            padding-top: 0;
            padding-bottom: 0;
            min-height: 72px;
            transition: background var(--transition), box-shadow var(--transition);
        }
        .custom-navbar .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            padding: 0.5rem 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .custom-navbar .navbar-brand i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .custom-navbar .navbar-brand:hover {
            color: var(--primary-dark);
        }
        .custom-navbar .nav-link {
            font-weight: 600;
            color: var(--text-body);
            padding: 0.75rem 1.1rem !important;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
            font-size: 0.95rem;
        }
        .custom-navbar .nav-link:hover,
        .custom-navbar .nav-link:focus {
            color: var(--primary);
            background: rgba(26, 58, 92, 0.05);
        }
        .custom-navbar .nav-link.active {
            color: var(--primary);
            background: rgba(26, 58, 92, 0.08);
        }
        .custom-navbar .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 1.1rem;
            right: 1.1rem;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .navbar-cta-btn {
            background: var(--primary);
            color: #fff !important;
            padding: 0.5rem 1.5rem !important;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: all var(--transition);
            border: none;
        }
        .navbar-cta-btn:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }
        .navbar-cta-btn i {
            margin-right: 0.4rem;
        }
        .navbar-toggler {
            border: none;
            padding: 0.5rem;
            color: var(--primary);
            font-size: 1.4rem;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .mega-dropdown {
            position: static;
        }
        .mega-menu {
            width: 100%;
            left: 0;
            right: 0;
            padding: 1.5rem 2rem;
            border: none;
            border-radius: 0 0 var(--radius-md) var(--radius-md);
            box-shadow: var(--shadow-lg);
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 3px solid var(--accent);
            margin-top: 0;
        }
        .mega-menu .mega-title {
            font-weight: 700;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--text-light);
            margin-bottom: 0.75rem;
        }
        .mega-menu .mega-link {
            display: block;
            padding: 0.4rem 0;
            color: var(--text-body);
            font-weight: 500;
            transition: color var(--transition);
            font-size: 0.95rem;
        }
        .mega-menu .mega-link:hover {
            color: var(--accent);
        }
        .mega-menu .mega-card {
            background: var(--bg-light);
            border-radius: var(--radius-sm);
            padding: 1rem;
            transition: background var(--transition);
        }
        .mega-menu .mega-card:hover {
            background: #e8edf4;
        }

        /* ===== Hero Section ===== */
        .hero-section {
            position: relative;
            min-height: 88vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-dark);
            overflow: hidden;
            padding: 6rem 0 4rem;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            z-index: 1;
            filter: saturate(1.1) brightness(0.7);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(160deg, rgba(11, 26, 46, 0.92) 30%, rgba(26, 58, 92, 0.70) 80%);
            z-index: 2;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 880px;
            padding: 0 1.5rem;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(232, 133, 46, 0.18);
            color: var(--accent-light);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 0.35rem 1.2rem;
            border-radius: 50px;
            border: 1px solid rgba(232, 133, 46, 0.3);
            margin-bottom: 1.5rem;
            letter-spacing: 0.03em;
        }
        .hero-title {
            font-size: 3.8rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.15;
            margin-bottom: 1.2rem;
            letter-spacing: -0.02em;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .hero-title span {
            color: var(--accent-light);
            position: relative;
        }
        .hero-desc {
            font-size: 1.2rem;
            color: rgba(240, 244, 250, 0.85);
            max-width: 640px;
            margin: 0 auto 2.2rem;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .hero-actions .btn-primary-custom {
            background: var(--accent);
            border: none;
            color: #fff;
            font-weight: 700;
            padding: 0.85rem 2.4rem;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(232, 133, 46, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .hero-actions .btn-primary-custom:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(232, 133, 46, 0.45);
        }
        .hero-actions .btn-outline-custom {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: var(--text-white);
            font-weight: 600;
            padding: 0.85rem 2.2rem;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .hero-actions .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2.5rem 3.5rem;
            margin-top: 3.5rem;
            padding-top: 2.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.12);
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            display: block;
        }
        .hero-stat-item .stat-label {
            font-size: 0.9rem;
            color: rgba(240, 244, 250, 0.65);
            font-weight: 500;
        }

        /* ===== Feature / Intro Section ===== */
        .intro-section {
            background: var(--bg-white);
            padding: 5rem 0;
        }
        .intro-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 2rem 1.8rem;
            height: 100%;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            position: relative;
            overflow: hidden;
        }
        .intro-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
        }
        .intro-card .icon-wrap {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            background: rgba(26, 58, 92, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 1.2rem;
            transition: all var(--transition);
        }
        .intro-card:hover .icon-wrap {
            background: var(--primary);
            color: #fff;
        }
        .intro-card h5 {
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 0.6rem;
        }
        .intro-card p {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 0;
        }

        /* ===== Category / Entry Section ===== */
        .entry-section {
            background: var(--bg-light);
            padding: 5rem 0;
        }
        .entry-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .entry-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-mid);
        }
        .entry-card .card-img-wrap {
            height: 200px;
            overflow: hidden;
            position: relative;
            background: var(--bg-dark);
        }
        .entry-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .entry-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .entry-card .card-img-wrap .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.9rem;
            border-radius: 50px;
            letter-spacing: 0.03em;
        }
        .entry-card .card-body {
            padding: 1.5rem 1.5rem 1.8rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .entry-card .card-body h5 {
            font-weight: 700;
            font-size: 1.15rem;
            margin-bottom: 0.5rem;
        }
        .entry-card .card-body p {
            font-size: 0.92rem;
            color: var(--text-light);
            flex: 1;
            margin-bottom: 1rem;
        }
        .entry-card .card-body .card-link {
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            transition: color var(--transition);
        }
        .entry-card .card-body .card-link:hover {
            color: var(--accent);
        }

        /* ===== Content / News List Section ===== */
        .news-section {
            background: var(--bg-white);
            padding: 5rem 0;
        }
        .news-list-item {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            padding: 1.8rem 0;
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition);
            border-radius: var(--radius-sm);
        }
        .news-list-item:first-of-type {
            padding-top: 0;
        }
        .news-list-item:last-of-type {
            border-bottom: none;
        }
        .news-list-item .news-thumb {
            width: 200px;
            min-height: 120px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-light);
        }
        .news-list-item .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-list-item .news-content {
            flex: 1;
            min-width: 240px;
        }
        .news-list-item .news-content .news-cat {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--accent);
            background: rgba(232, 133, 46, 0.10);
            padding: 0.15rem 0.8rem;
            border-radius: 50px;
            margin-bottom: 0.4rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }
        .news-list-item .news-content h5 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .news-list-item .news-content h5 a {
            color: var(--text-dark);
            transition: color var(--transition);
        }
        .news-list-item .news-content h5 a:hover {
            color: var(--accent);
        }
        .news-list-item .news-content .news-excerpt {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-list-item .news-content .news-meta {
            font-size: 0.82rem;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            align-items: center;
        }
        .news-list-item .news-content .news-meta i {
            margin-right: 0.3rem;
        }

        /* ===== Stats / Data Section ===== */
        .stats-section {
            background: var(--bg-dark);
            padding: 4.5rem 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .stats-section .container {
            position: relative;
            z-index: 1;
        }
        .stats-card {
            text-align: center;
            padding: 2rem 1.5rem;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(4px);
            transition: all var(--transition);
        }
        .stats-card:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }
        .stats-card .stats-icon {
            font-size: 2.4rem;
            color: var(--accent-light);
            margin-bottom: 0.8rem;
        }
        .stats-card .stats-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .stats-card .stats-label {
            font-size: 0.95rem;
            color: rgba(240, 244, 250, 0.65);
            font-weight: 500;
        }

        /* ===== Process / Steps Section ===== */
        .process-section {
            background: var(--bg-light);
            padding: 5rem 0;
        }
        .process-step {
            text-align: center;
            padding: 2rem 1.2rem;
            position: relative;
        }
        .process-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.3rem;
            margin-bottom: 1.2rem;
            transition: all var(--transition);
        }
        .process-step:hover .step-num {
            background: var(--accent);
            transform: scale(1.08);
        }
        .process-step h5 {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.5rem;
        }
        .process-step p {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 0;
        }
        .process-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--border-mid);
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--bg-white);
            padding: 5rem 0;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-mid);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            background: var(--bg-light);
            padding: 1.1rem 1.5rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background var(--transition);
            border: none;
            width: 100%;
            text-align: left;
            font-size: 1rem;
        }
        .faq-question:hover {
            background: #e8edf4;
        }
        .faq-question i {
            transition: transform var(--transition);
            color: var(--accent);
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 1.2rem 1.5rem;
            font-size: 0.95rem;
            color: var(--text-body);
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--primary);
            padding: 4.5rem 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 {
            position: relative;
            z-index: 1;
        }
        .cta-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.8rem;
        }
        .cta-desc {
            font-size: 1.1rem;
            color: rgba(240, 244, 250, 0.8);
            max-width: 600px;
            margin: 0 auto 2rem;
        }
        .cta-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            justify-content: center;
        }
        .cta-btn-primary {
            background: var(--accent);
            border: none;
            color: #fff;
            font-weight: 700;
            padding: 0.85rem 2.6rem;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            transition: all var(--transition);
            box-shadow: 0 6px 24px rgba(232, 133, 46, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .cta-btn-primary:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(232, 133, 46, 0.4);
            color: #fff;
        }
        .cta-btn-outline {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.25);
            color: var(--text-white);
            font-weight: 600;
            padding: 0.85rem 2.4rem;
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
        }
        .cta-btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-3px);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(240, 244, 250, 0.7);
            padding: 4rem 0 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
        }
        .site-footer .footer-brand i {
            color: var(--accent);
        }
        .site-footer .footer-desc {
            font-size: 0.92rem;
            max-width: 360px;
            color: rgba(240, 244, 250, 0.55);
        }
        .site-footer .footer-title {
            font-weight: 700;
            color: var(--text-white);
            font-size: 1rem;
            margin-bottom: 1rem;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 0.5rem;
        }
        .site-footer .footer-links a {
            color: rgba(240, 244, 250, 0.6);
            font-size: 0.9rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent-light);
            transform: translateX(4px);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            font-size: 0.85rem;
            color: rgba(240, 244, 250, 0.4);
            text-align: center;
        }
        .site-footer .footer-bottom a {
            color: rgba(240, 244, 250, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 3rem;
            }
            .section-title {
                font-size: 1.9rem;
            }
            .hero-stats {
                gap: 1.8rem 2.5rem;
            }
            .news-list-item .news-thumb {
                width: 160px;
                min-height: 100px;
            }
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 3.5rem 0;
            }
            .hero-section {
                min-height: 70vh;
                padding: 5rem 0 3rem;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 1.2rem 1.8rem;
                margin-top: 2.5rem;
                padding-top: 1.8rem;
            }
            .hero-stat-item .stat-number {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
            .news-list-item {
                flex-direction: column;
                gap: 0.8rem;
            }
            .news-list-item .news-thumb {
                width: 100%;
                min-height: 140px;
            }
            .process-arrow {
                transform: rotate(90deg);
                padding: 0.5rem 0;
            }
            .stats-card .stats-number {
                font-size: 2rem;
            }
            .cta-title {
                font-size: 1.6rem;
            }
            .custom-navbar .navbar-brand {
                font-size: 1.25rem;
            }
            .mega-menu {
                padding: 1rem;
            }
            .navbar-cta-btn {
                padding: 0.4rem 1.2rem !important;
                font-size: 0.9rem;
            }
            .entry-card .card-img-wrap {
                height: 160px;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 0.9rem 1.2rem;
            }
            .faq-answer {
                padding: 0.9rem 1.2rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.92rem;
            }
            .hero-actions .btn-primary-custom,
            .hero-actions .btn-outline-custom {
                padding: 0.65rem 1.6rem;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .entry-card .card-img-wrap {
                height: 140px;
            }
            .stats-card {
                padding: 1.2rem 0.8rem;
            }
            .stats-card .stats-number {
                font-size: 1.6rem;
            }
            .cta-btn-primary,
            .cta-btn-outline {
                width: 100%;
                justify-content: center;
            }
            .cta-btn-group {
                flex-direction: column;
                align-items: stretch;
            }
            .custom-navbar .nav-link {
                padding: 0.5rem 0.8rem !important;
                font-size: 0.88rem;
            }
            .site-footer .footer-brand {
                font-size: 1.2rem;
            }
            .news-list-item .news-thumb {
                min-height: 100px;
            }
            .hero-stat-item .stat-number {
                font-size: 1.4rem;
            }
            .hero-stat-item .stat-label {
                font-size: 0.78rem;
            }
        }
        @media (min-width: 992px) {
            .custom-navbar .nav-link {
                padding: 0.75rem 1.2rem !important;
            }
            .mega-menu {
                min-width: 700px;
            }
        }
        /* ===== Accessibility ===== */
        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .btn:focus-visible,
        .nav-link:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --accent: #f0b90b;
            --accent-light: #fcd34d;
            --accent-dark: #c9950a;
            --bg-body: #f4f7fc;
            --bg-card: #ffffff;
            --bg-dark: #0b1124;
            --bg-section-alt: #e8edf5;
            --text-dark: #1a2332;
            --text-body: #2d3a4a;
            --text-light: #6b7a8a;
            --text-white: #f0f4fa;
            --border-light: #dce2ec;
            --border-card: #e9edf4;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(26,42,108,0.06);
            --shadow-md: 0 6px 24px rgba(26,42,108,0.10);
            --shadow-lg: 0 12px 40px rgba(26,42,108,0.14);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        }

        /* ===== 基础重置 ===== */
        *, *::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-body);
            line-height: 1.7;
            padding-top: 78px;
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        ul, ol { padding-left: 1.25rem; }
        ::selection { background: var(--accent); color: var(--primary-dark); }

        /* ===== 容器 ===== */
        .container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }

        /* ===== 导航 ===== */
        .custom-navbar {
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 12px rgba(26,42,108,0.06);
            padding: 0;
            min-height: 72px;
            transition: var(--transition);
        }
        .custom-navbar .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--primary);
            padding: 10px 0;
            letter-spacing: -0.3px;
        }
        .custom-navbar .navbar-brand i { color: var(--accent); font-size: 1.6rem; }
        .custom-navbar .navbar-brand span { background: linear-gradient(135deg, var(--primary), var(--primary-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .custom-navbar .navbar-nav .nav-link {
            font-weight: 500;
            color: var(--text-dark);
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            font-size: 0.95rem;
        }
        .custom-navbar .navbar-nav .nav-link:hover,
        .custom-navbar .navbar-nav .nav-link:focus-visible {
            color: var(--primary);
            background: rgba(26,42,108,0.06);
        }
        .custom-navbar .navbar-nav .nav-link.active {
            color: var(--primary);
            background: rgba(26,42,108,0.08);
            font-weight: 600;
        }
        .custom-navbar .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 18px;
            right: 18px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .navbar-toggler { border: none; color: var(--primary); font-size: 1.5rem; padding: 6px 10px; }
        .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(240,185,11,0.3); outline: none; }

        /* mega dropdown */
        .mega-dropdown { position: relative; }
        .mega-menu {
            border: none;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            background: var(--bg-card);
            padding: 1.5rem;
            min-width: 480px;
            margin-top: 8px;
            border-top: 3px solid var(--accent);
        }
        .mega-title {
            font-weight: 700;
            color: var(--primary);
            font-size: 0.95rem;
            margin-bottom: 12px;
            letter-spacing: 0.3px;
            border-bottom: 1px solid var(--border-light);
            padding-bottom: 8px;
        }
        .mega-link {
            display: block;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            color: var(--text-body);
            font-weight: 500;
            transition: var(--transition);
            margin-bottom: 4px;
        }
        .mega-link:hover { background: rgba(26,42,108,0.05); color: var(--primary); transform: translateX(4px); }
        .mega-card {
            background: var(--bg-section-alt);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            margin-top: 12px;
        }
        .mega-card small { color: var(--text-light); }
        @media (max-width: 991.98px) {
            .mega-menu { min-width: unset; box-shadow: none; padding: 0.5rem 0; border-top: none; background: transparent; }
            .mega-link { padding: 6px 12px; }
            .mega-title { font-size: 0.85rem; }
            .custom-navbar .navbar-nav .nav-link.active::after { display: none; }
            body { padding-top: 64px; }
            .custom-navbar { min-height: 60px; }
        }

        /* ===== 文章详情 ===== */
        .article-hero {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            padding: 48px 0 40px;
            position: relative;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero h1 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.3;
            max-width: 880px;
            letter-spacing: -0.4px;
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            align-items: center;
            color: rgba(255,255,255,0.75);
            font-size: 0.9rem;
        }
        .article-meta .badge-cat {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
        }
        .article-meta i { margin-right: 4px; }
        .breadcrumb-custom {
            background: transparent;
            padding: 12px 0 8px;
            margin-bottom: 0;
            font-size: 0.85rem;
        }
        .breadcrumb-custom .breadcrumb-item { color: rgba(255,255,255,0.6); }
        .breadcrumb-custom .breadcrumb-item a { color: rgba(255,255,255,0.8); }
        .breadcrumb-custom .breadcrumb-item a:hover { color: var(--accent); }
        .breadcrumb-custom .breadcrumb-item.active { color: rgba(255,255,255,0.9); }
        .breadcrumb-custom .breadcrumb-item + .breadcrumb-item::before { color: rgba(255,255,255,0.4); }

        .article-main {
            padding: 48px 0 60px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 40px 44px;
            border: 1px solid var(--border-card);
        }
        .article-body .content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-body);
        }
        .article-body .content p { margin-bottom: 1.4rem; }
        .article-body .content h2, .article-body .content h3 {
            color: var(--primary);
            font-weight: 700;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }
        .article-body .content h2 { font-size: 1.5rem; }
        .article-body .content h3 { font-size: 1.25rem; }
        .article-body .content ul, .article-body .content ol { margin-bottom: 1.4rem; }
        .article-body .content li { margin-bottom: 0.4rem; }
        .article-body .content a { color: var(--primary-light); font-weight: 500; text-decoration: underline; }
        .article-body .content a:hover { color: var(--primary); }
        .article-body .content img { border-radius: var(--radius-md); margin: 1.8rem auto; box-shadow: var(--shadow-sm); }
        .article-body .content blockquote {
            border-left: 4px solid var(--accent);
            background: var(--bg-section-alt);
            padding: 16px 24px;
            margin: 1.6rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-dark);
            font-style: italic;
        }

        .article-nav {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
            margin-top: 40px;
            padding-top: 32px;
            border-top: 1px solid var(--border-light);
        }
        .article-nav a {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 22px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            color: var(--text-body);
            font-weight: 500;
            transition: var(--transition);
            background: var(--bg-card);
            max-width: 48%;
        }
        .article-nav a:hover {
            border-color: var(--primary-light);
            color: var(--primary);
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .article-nav .nav-prev i { margin-right: 4px; }
        .article-nav .nav-next i { margin-left: 4px; }

        /* ===== 相关推荐 ===== */
        .related-section {
            background: var(--bg-section-alt);
            padding: 56px 0;
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 8px;
        }
        .related-section .section-sub {
            color: var(--text-light);
            margin-bottom: 32px;
            font-size: 0.95rem;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-card);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
        }
        .related-card .card-img {
            height: 180px;
            background: var(--primary);
            overflow: hidden;
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .card-body .cat-tag {
            display: inline-block;
            background: rgba(26,42,108,0.08);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .related-card .card-body h5 {
            font-weight: 700;
            color: var(--text-dark);
            font-size: 1.05rem;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .related-card .card-body p {
            color: var(--text-light);
            font-size: 0.9rem;
            flex: 1;
            margin-bottom: 12px;
        }
        .related-card .card-body .meta-info {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            gap: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.06;
            mix-blend-mode: overlay;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 {
            color: #fff;
            font-weight: 800;
            font-size: 1.8rem;
        }
        .cta-section p {
            color: rgba(255,255,255,0.8);
            font-size: 1.05rem;
            max-width: 640px;
            margin: 12px auto 24px;
        }
        .btn-cta {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 700;
            padding: 14px 40px;
            border-radius: 50px;
            border: none;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(240,185,11,0.3);
        }
        .btn-cta:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(240,185,11,0.4);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(240,244,250,0.75);
            padding: 48px 0 28px;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand i { color: var(--accent); font-size: 1.5rem; }
        .site-footer .footer-desc { font-size: 0.9rem; max-width: 360px; line-height: 1.7; color: rgba(240,244,250,0.6); }
        .site-footer .footer-title {
            font-weight: 700;
            color: #fff;
            font-size: 1rem;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links { list-style: none; padding: 0; margin: 0; }
        .site-footer .footer-links li { margin-bottom: 10px; }
        .site-footer .footer-links a {
            color: rgba(240,244,250,0.6);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover { color: var(--accent); transform: translateX(4px); }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 22px;
            margin-top: 32px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(240,244,250,0.45);
        }
        .site-footer .footer-bottom a { color: rgba(240,244,250,0.6); }
        .site-footer .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .article-hero h1 { font-size: 1.6rem; }
            .article-body { padding: 28px 24px; }
            .article-body .content { font-size: 1rem; }
            .related-card .card-img { height: 150px; }
            .cta-section h2 { font-size: 1.4rem; }
        }
        @media (max-width: 767.98px) {
            .article-hero { padding: 32px 0 28px; }
            .article-hero h1 { font-size: 1.35rem; }
            .article-meta { font-size: 0.8rem; gap: 8px 16px; }
            .article-main { padding: 28px 0 36px; }
            .article-body { padding: 20px 16px; border-radius: var(--radius-md); }
            .article-body .content { font-size: 0.95rem; }
            .article-nav { flex-direction: column; }
            .article-nav a { max-width: 100%; font-size: 0.9rem; }
            .related-section { padding: 36px 0; }
            .related-section .section-title { font-size: 1.3rem; }
            .related-card .card-img { height: 140px; }
            .cta-section { padding: 36px 0; }
            .cta-section h2 { font-size: 1.2rem; }
            .btn-cta { padding: 12px 28px; font-size: 0.9rem; }
            .site-footer { padding: 32px 0 20px; }
            .site-footer .footer-brand { font-size: 1.1rem; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.15rem; }
            .article-body { padding: 16px 12px; }
            .article-body .content { font-size: 0.9rem; }
            .article-meta { font-size: 0.75rem; gap: 6px 12px; }
            .related-card .card-body { padding: 14px 16px; }
            .related-card .card-body h5 { font-size: 0.95rem; }
            .breadcrumb-custom { font-size: 0.75rem; }
        }

        /* ===== 辅助 ===== */
        .text-accent { color: var(--accent); }
        .bg-accent { background: var(--accent); }
        .focus-ring:focus-visible { outline: 3px solid rgba(240,185,11,0.4); outline-offset: 2px; }
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-box i { font-size: 3rem; color: var(--text-light); margin-bottom: 20px; }
        .not-found-box h2 { font-size: 1.5rem; color: var(--text-dark); margin-bottom: 12px; }
        .not-found-box p { color: var(--text-light); margin-bottom: 20px; }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 28px;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover { background: var(--primary-light); transform: translateY(-2px); }

/* roulang page: category1 */
:root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a45;
            --accent: #f7971e;
            --accent-light: #faba4a;
            --accent-dark: #d47d0e;
            --bg-dark: #0b1120;
            --bg-card: #131d35;
            --bg-section: #0f1729;
            --text-light: #f0f4fa;
            --text-muted: #8899b4;
            --text-body: #c8d0dd;
            --border-color: rgba(247, 151, 30, 0.15);
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 16px 48px rgba(247, 151, 30, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        *,
        *::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-dark);
            color: var(--text-body);
            line-height: 1.7;
            padding-top: var(--nav-height);
            font-size: 1rem;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        ul,
        ol {
            padding-left: 0;
            list-style: none;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 导航 ===== */
        .custom-navbar {
            background: rgba(11, 17, 32, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(247, 151, 30, 0.08);
            padding: 0;
            min-height: var(--nav-height);
            transition: var(--transition);
        }
        .custom-navbar .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-light);
            font-weight: 700;
            font-size: 1.25rem;
            letter-spacing: 0.5px;
            padding: 10px 0;
        }
        .custom-navbar .navbar-brand i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .custom-navbar .navbar-brand:hover {
            color: var(--accent-light);
            text-decoration: none;
        }
        .custom-navbar .navbar-nav .nav-link {
            color: rgba(240, 244, 250, 0.75);
            font-weight: 500;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            font-size: 0.95rem;
        }
        .custom-navbar .navbar-nav .nav-link:hover,
        .custom-navbar .navbar-nav .nav-link:focus-visible {
            color: var(--text-light);
            background: rgba(247, 151, 30, 0.08);
            text-decoration: none;
        }
        .custom-navbar .navbar-nav .nav-link.active {
            color: var(--accent);
            background: rgba(247, 151, 30, 0.12);
        }
        .custom-navbar .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .navbar-toggler {
            border: none;
            color: var(--text-light);
            font-size: 1.4rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: rgba(247, 151, 30, 0.06);
        }
        .navbar-toggler:hover {
            background: rgba(247, 151, 30, 0.15);
        }

        /* Mega Menu */
        .mega-dropdown .dropdown-toggle::after {
            display: inline-block;
            margin-left: 6px;
            vertical-align: middle;
            border-top: 0.3em solid;
            border-right: 0.3em solid transparent;
            border-left: 0.3em solid transparent;
            transition: var(--transition);
        }
        .mega-dropdown:hover .dropdown-toggle::after {
            transform: rotate(-180deg);
        }
        .mega-menu {
            background: rgba(19, 29, 53, 0.97);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(247, 151, 30, 0.12);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            padding: 1.2rem 1.5rem !important;
            min-width: 420px;
            margin-top: 8px;
        }
        .mega-menu .mega-title {
            color: var(--accent);
            font-weight: 600;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 10px;
            padding-bottom: 6px;
            border-bottom: 1px solid rgba(247, 151, 30, 0.1);
        }
        .mega-menu .mega-link {
            display: flex;
            align-items: center;
            padding: 7px 12px;
            border-radius: var(--radius-sm);
            color: var(--text-body);
            font-size: 0.95rem;
            transition: var(--transition);
            margin-bottom: 2px;
        }
        .mega-menu .mega-link:hover {
            background: rgba(247, 151, 30, 0.08);
            color: var(--text-light);
            text-decoration: none;
            transform: translateX(4px);
        }
        .mega-menu .mega-link i {
            width: 20px;
            text-align: center;
        }
        .mega-menu .mega-card {
            background: rgba(247, 151, 30, 0.06);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            border-left: 3px solid var(--accent);
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            line-height: 1.3;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            margin: 0 auto 40px;
            text-align: center;
        }
        .text-accent {
            color: var(--accent);
        }
        .bg-section-alt {
            background: var(--bg-section);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar {
            padding: 20px 0 10px;
            background: transparent;
        }
        .breadcrumb-bar .breadcrumb {
            background: transparent;
            padding: 0;
            margin: 0;
        }
        .breadcrumb-bar .breadcrumb-item {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .breadcrumb-bar .breadcrumb-item a {
            color: var(--text-muted);
        }
        .breadcrumb-bar .breadcrumb-item a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        .breadcrumb-bar .breadcrumb-item.active {
            color: var(--accent);
        }
        .breadcrumb-bar .breadcrumb-item+.breadcrumb-item::before {
            color: var(--text-muted);
            content: "/";
        }

        /* ===== Banner ===== */
        .category-banner {
            position: relative;
            min-height: 340px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--bg-dark) 100%);
            overflow: hidden;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            margin-bottom: 0;
        }
        .category-banner .banner-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.2;
            pointer-events: none;
        }
        .category-banner .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 17, 32, 0.88) 0%, rgba(11, 17, 32, 0.4) 100%);
            pointer-events: none;
        }
        .category-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: 60px 0 50px;
        }
        .category-banner .banner-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(247, 151, 30, 0.15);
            color: var(--accent-light);
            padding: 4px 16px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
            border: 1px solid rgba(247, 151, 30, 0.15);
        }
        .category-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }
        .category-banner .banner-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            line-height: 1.7;
        }
        .category-banner .banner-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 36px;
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid rgba(247, 151, 30, 0.08);
        }
        .category-banner .banner-meta span {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .category-banner .banner-meta i {
            color: var(--accent);
            font-size: 1rem;
        }

        /* ===== 入口方式卡片 ===== */
        .entry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .entry-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .entry-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            opacity: 0;
            transition: var(--transition);
        }
        .entry-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(247, 151, 30, 0.25);
        }
        .entry-card:hover::before {
            opacity: 1;
        }
        .entry-card .entry-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: rgba(247, 151, 30, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent);
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .entry-card:hover .entry-icon {
            background: rgba(247, 151, 30, 0.2);
            transform: scale(1.05);
        }
        .entry-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .entry-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .entry-card .entry-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(247, 151, 30, 0.08);
            color: var(--accent-light);
            padding: 2px 12px;
            border-radius: 40px;
            font-size: 0.75rem;
            font-weight: 500;
        }
        .entry-card .entry-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            margin-top: 6px;
            transition: var(--transition);
        }
        .entry-card .entry-link:hover {
            gap: 12px;
            color: var(--accent-light);
            text-decoration: none;
        }

        /* ===== 操作步骤 ===== */
        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 20px 24px;
            border: 1px solid var(--border-color);
            text-align: center;
            transition: var(--transition);
            position: relative;
        }
        .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-item .step-num {
            counter-increment: step;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(247, 151, 30, 0.12);
            color: var(--accent);
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            transition: var(--transition);
        }
        .step-item:hover .step-num {
            background: var(--accent);
            color: var(--bg-dark);
        }
        .step-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== 内容卡片 ===== */
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .content-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .content-card .card-img-wrap {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: var(--primary-dark);
        }
        .content-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .content-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .content-card .card-img-wrap .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(247, 151, 30, 0.9);
            color: var(--bg-dark);
            padding: 2px 14px;
            border-radius: 40px;
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .content-card .card-body {
            padding: 20px 20px 24px;
        }
        .content-card .card-body .card-cat {
            font-size: 0.75rem;
            color: var(--accent);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 6px;
        }
        .content-card .card-body h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .content-card .card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }
        .content-card .card-body .card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 12px;
            border-top: 1px solid rgba(247, 151, 30, 0.06);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .content-card .card-body .card-meta a {
            color: var(--accent);
            font-weight: 600;
            font-size: 0.85rem;
        }
        .content-card .card-body .card-meta a:hover {
            color: var(--accent-light);
            text-decoration: none;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 840px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(247, 151, 30, 0.2);
        }
        .faq-item .faq-question {
            padding: 18px 22px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            color: var(--text-light);
            font-size: 1rem;
            transition: var(--transition);
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            gap: 12px;
        }
        .faq-item .faq-question:hover {
            color: var(--accent-light);
            background: rgba(247, 151, 30, 0.03);
        }
        .faq-item .faq-question i {
            color: var(--accent);
            font-size: 1.1rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item .faq-answer {
            padding: 0 22px 18px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 60px 50px;
            position: relative;
            overflow: hidden;
            margin: 0 auto;
            max-width: var(--container-max);
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.06;
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(240, 244, 250, 0.7);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 36px;
            border-radius: 60px;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 28px rgba(247, 151, 30, 0.25);
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(247, 151, 30, 0.35);
            background: var(--accent-light);
            color: var(--bg-dark);
            text-decoration: none;
        }

        /* ===== 资源推荐 ===== */
        .resource-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .resource-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 24px 18px 20px;
            border: 1px solid var(--border-color);
            text-align: center;
            transition: var(--transition);
        }
        .resource-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(247, 151, 30, 0.2);
        }
        .resource-item i {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 12px;
            display: block;
        }
        .resource-item h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 4px;
        }
        .resource-item span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: rgba(11, 17, 32, 0.95);
            border-top: 1px solid rgba(247, 151, 30, 0.06);
            padding: 60px 0 30px;
            margin-top: 80px;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .site-footer .footer-brand i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .site-footer .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .site-footer .footer-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-links {
            padding: 0;
            margin: 0;
            list-style: none;
        }
        .site-footer .footer-links li {
            margin-bottom: 8px;
        }
        .site-footer .footer-links a {
            color: var(--text-muted);
            font-size: 0.88rem;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent-light);
            text-decoration: none;
            transform: translateX(4px);
        }
        .site-footer .footer-links a i {
            color: var(--accent);
            opacity: 0.6;
            font-size: 0.65rem;
        }
        .site-footer .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid rgba(247, 151, 30, 0.06);
            text-align: center;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .site-footer .footer-bottom a {
            color: var(--text-muted);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent-light);
            text-decoration: none;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .entry-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .resource-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-banner h1 {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .cta-section {
                padding: 40px 30px;
                border-radius: var(--radius);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 64px;
            }
            :root {
                --nav-height: 64px;
            }
            .section-padding {
                padding: 50px 0;
            }
            .category-banner {
                min-height: 260px;
            }
            .category-banner .banner-content {
                padding: 40px 0 30px;
            }
            .category-banner h1 {
                font-size: 1.6rem;
            }
            .category-banner .banner-desc {
                font-size: 0.95rem;
            }
            .category-banner .banner-meta {
                gap: 12px 20px;
            }
            .category-banner .banner-meta span {
                font-size: 0.8rem;
            }
            .entry-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .content-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .step-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .resource-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-subtitle {
                font-size: 0.92rem;
                margin-bottom: 28px;
            }
            .cta-section {
                padding: 30px 20px;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
            .cta-section p {
                font-size: 0.92rem;
            }
            .cta-section .btn-cta {
                padding: 12px 28px;
                font-size: 0.9rem;
            }
            .faq-item .faq-question {
                padding: 14px 16px;
                font-size: 0.92rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
            .mega-menu {
                min-width: auto;
                padding: 1rem !important;
            }
            .custom-navbar .navbar-nav .nav-link.active::after {
                display: none;
            }
            .site-footer {
                padding: 40px 0 20px;
                margin-top: 50px;
            }
        }

        @media (max-width: 520px) {
            .step-grid {
                grid-template-columns: 1fr;
            }
            .resource-grid {
                grid-template-columns: 1fr;
            }
            .category-banner h1 {
                font-size: 1.3rem;
            }
            .category-banner .banner-desc {
                font-size: 0.88rem;
            }
            .entry-card {
                padding: 24px 18px 22px;
            }
            .entry-card .entry-icon {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
            .content-card .card-img-wrap {
                height: 140px;
            }
            .content-card .card-body {
                padding: 16px 16px 20px;
            }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f172a;
            --primary-light: #1e293b;
            --primary-dark: #070d1a;
            --accent: #2563eb;
            --accent-hover: #1d4ed8;
            --accent-light: #3b82f6;
            --cyan: #06b6d4;
            --cyan-hover: #0891b2;
            --amber: #f59e0b;
            --amber-light: #fbbf24;
            --bg-body: #f0f4fa;
            --bg-card: #ffffff;
            --bg-dark: #0b1120;
            --bg-section-alt: #e8edf5;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-light: #94a3b8;
            --text-white: #f1f5f9;
            --border-color: #e2e8f0;
            --border-light: rgba(255, 255, 255, 0.12);
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10), 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.05);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 1rem;
            padding-top: 76px;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        a:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }
        img:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

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

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        /* ===== 导航 ===== */
        .custom-navbar {
            background: rgba(15, 23, 42, 0.92);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 0.6rem 0;
            box-shadow: 0 1px 12px rgba(0, 0, 0, 0.15);
            transition: background var(--transition);
        }
        .custom-navbar .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.35rem;
            color: var(--text-white);
            letter-spacing: -0.01em;
        }
        .custom-navbar .navbar-brand i {
            color: var(--cyan);
            font-size: 1.5rem;
        }
        .custom-navbar .navbar-brand:hover {
            color: var(--text-white);
        }
        .custom-navbar .navbar-brand span {
            background: linear-gradient(135deg, #f1f5f9 0%, #94a3b8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .custom-navbar .nav-link {
            color: rgba(241, 245, 249, 0.75);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            position: relative;
        }
        .custom-navbar .nav-link:hover,
        .custom-navbar .nav-link:focus-visible {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        .custom-navbar .nav-link.active {
            color: var(--cyan);
            background: rgba(6, 182, 212, 0.10);
        }
        .custom-navbar .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            height: 2px;
            background: var(--cyan);
            border-radius: 2px;
        }
        .navbar-toggler {
            border: none;
            color: var(--text-white);
            font-size: 1.3rem;
            padding: 0.25rem 0.5rem;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.4);
        }

        /* Mega Dropdown */
        .mega-dropdown .dropdown-toggle::after {
            display: none;
        }
        .mega-dropdown .dropdown-menu.mega-menu {
            background: rgba(15, 23, 42, 0.96);
            backdrop-filter: blur(20px) saturate(180%);
            -webkit-backdrop-filter: blur(20px) saturate(180%);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 1.25rem 1.5rem;
            margin-top: 0.5rem;
            min-width: 520px;
        }
        .mega-menu .mega-title {
            color: var(--cyan);
            font-weight: 600;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 0.6rem;
            padding-bottom: 0.3rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .mega-menu .mega-link {
            display: block;
            color: rgba(241, 245, 249, 0.75);
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
            font-size: 0.92rem;
            transition: all var(--transition);
        }
        .mega-menu .mega-link:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
            transform: translateX(4px);
        }
        .mega-menu .mega-link.active {
            color: var(--cyan);
            background: rgba(6, 182, 212, 0.10);
            font-weight: 600;
        }
        .mega-menu .mega-link i {
            width: 1.2rem;
            text-align: center;
        }
        .mega-menu .mega-card {
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-sm);
            padding: 0.6rem 0.8rem;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .mega-menu .dropdown-item:focus-visible {
            outline: 3px solid var(--cyan);
            outline-offset: -3px;
        }
        @media (max-width: 991.98px) {
            .mega-dropdown .dropdown-menu.mega-menu {
                min-width: unset;
                background: transparent;
                border: none;
                box-shadow: none;
                padding: 0.5rem 0 0.5rem 1rem;
                margin-top: 0;
            }
            .mega-menu .mega-title {
                color: var(--amber);
                font-size: 0.8rem;
            }
            .mega-menu .mega-link {
                color: rgba(241, 245, 249, 0.7);
                padding: 0.35rem 0.5rem;
                font-size: 0.88rem;
            }
            .mega-menu .mega-link:hover {
                background: rgba(255, 255, 255, 0.04);
            }
            .custom-navbar .navbar-nav {
                padding-top: 0.5rem;
            }
            .custom-navbar .nav-link.active::after {
                display: none;
            }
            .mega-menu .mega-card {
                background: transparent;
                border: none;
                padding: 0.3rem 0.5rem;
            }
        }

        /* ===== 内页 Banner ===== */
        .category-banner {
            position: relative;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center center;
            padding: 5rem 0 4rem;
            min-height: 320px;
            display: flex;
            align-items: center;
            isolation: isolate;
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.65) 50%, rgba(6, 182, 212, 0.20) 100%);
            z-index: 1;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
        }
        .category-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 0.75rem;
        }
        .category-banner h1 i {
            color: var(--cyan);
            margin-right: 0.5rem;
        }
        .category-banner .lead {
            font-size: 1.15rem;
            color: rgba(241, 245, 249, 0.8);
            max-width: 640px;
            line-height: 1.7;
        }
        .category-banner .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            font-size: 0.88rem;
            color: rgba(241, 245, 249, 0.6);
            margin-bottom: 1.2rem;
        }
        .category-banner .breadcrumb-custom a {
            color: rgba(241, 245, 249, 0.7);
        }
        .category-banner .breadcrumb-custom a:hover {
            color: var(--cyan);
        }
        .category-banner .breadcrumb-custom .separator {
            color: rgba(241, 245, 249, 0.3);
        }
        .category-banner .breadcrumb-custom .current {
            color: var(--cyan);
        }
        @media (max-width: 767.98px) {
            .category-banner {
                padding: 3.5rem 0 2.5rem;
                min-height: 240px;
            }
            .category-banner h1 {
                font-size: 1.8rem;
            }
            .category-banner .lead {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .category-banner h1 {
                font-size: 1.5rem;
            }
        }

        /* ===== 通用板块标题 ===== */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }
        .section-title i {
            color: var(--accent);
            margin-right: 0.4rem;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 2.5rem;
            line-height: 1.7;
        }
        .section-subtitle.text-center {
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 767.98px) {
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 1.8rem;
            }
        }

        /* ===== 卡片 ===== */
        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .service-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(37, 99, 235, 0.20);
        }
        .service-card .card-img-top {
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .service-card .card-body {
            padding: 1.25rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .service-card .card-body .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }
        .service-card .card-body .card-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.65;
            flex: 1;
        }
        .service-card .card-body .card-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(37, 99, 235, 0.08);
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            margin-bottom: 0.5rem;
            align-self: flex-start;
            letter-spacing: 0.02em;
        }
        .service-card .card-body .btn-outline-accent {
            align-self: flex-start;
            margin-top: 0.8rem;
            font-size: 0.88rem;
            border: 1px solid var(--accent);
            color: var(--accent);
            border-radius: 40px;
            padding: 0.3rem 1.2rem;
            background: transparent;
            transition: all var(--transition);
            font-weight: 500;
        }
        .service-card .card-body .btn-outline-accent:hover {
            background: var(--accent);
            color: #fff;
        }
        @media (max-width: 767.98px) {
            .service-card .card-img-top {
                height: 140px;
            }
            .service-card .card-body {
                padding: 1rem 1.2rem 1.2rem;
            }
        }

        /* ===== 详细服务列表 ===== */
        .service-detail-item {
            display: flex;
            align-items: flex-start;
            gap: 1.2rem;
            padding: 1.2rem 1.5rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            margin-bottom: 1rem;
        }
        .service-detail-item:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(37, 99, 235, 0.15);
            transform: translateX(3px);
        }
        .service-detail-item .icon-box {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(37, 99, 235, 0.08);
            border-radius: var(--radius-sm);
            color: var(--accent);
            font-size: 1.3rem;
        }
        .service-detail-item .detail-content {
            flex: 1;
        }
        .service-detail-item .detail-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
            color: var(--text-primary);
        }
        .service-detail-item .detail-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.6;
        }
        .service-detail-item .detail-badge {
            flex-shrink: 0;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            background: rgba(6, 182, 212, 0.08);
            color: var(--cyan);
            align-self: center;
            white-space: nowrap;
        }
        @media (max-width: 767.98px) {
            .service-detail-item {
                padding: 1rem 1.2rem;
                flex-wrap: wrap;
                gap: 0.8rem;
            }
            .service-detail-item .icon-box {
                width: 40px;
                height: 40px;
                font-size: 1.1rem;
            }
            .service-detail-item .detail-badge {
                align-self: flex-start;
            }
        }

        /* ===== 流程步骤 ===== */
        .step-wrapper {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
            justify-content: center;
        }
        .step-item {
            flex: 1 1 180px;
            max-width: 220px;
            text-align: center;
            position: relative;
            padding: 1.5rem 0.8rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-item .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--cyan));
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
        }
        .step-item h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
            color: var(--text-primary);
        }
        .step-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-bottom: 0;
            line-height: 1.5;
        }
        .step-item::after {
            content: '→';
            position: absolute;
            right: -1.2rem;
            top: 50%;
            transform: translateY(-50%);
            font-size: 1.4rem;
            color: var(--accent-light);
            opacity: 0.5;
        }
        .step-item:last-child::after {
            display: none;
        }
        @media (max-width: 767.98px) {
            .step-item {
                flex: 1 1 140px;
                max-width: 160px;
                padding: 1rem 0.5rem;
            }
            .step-item::after {
                display: none;
            }
        }
        @media (max-width: 520px) {
            .step-item {
                flex: 1 1 100%;
                max-width: 100%;
                display: flex;
                align-items: center;
                gap: 1rem;
                text-align: left;
                padding: 1rem 1.2rem;
            }
            .step-item .step-num {
                margin-bottom: 0;
                flex-shrink: 0;
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }
            .step-item h5 {
                margin-bottom: 0.1rem;
            }
            .step-item p {
                font-size: 0.82rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-section-alt);
        }
        .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md) !important;
            overflow: hidden;
            margin-bottom: 0.6rem;
            background: var(--bg-card);
            box-shadow: var(--shadow-sm);
        }
        .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            background: var(--bg-card);
            padding: 1rem 1.25rem;
            border: none;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(37, 99, 235, 0.04);
            color: var(--accent);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.20);
            border-color: transparent;
        }
        .accordion-button::after {
            background-size: 1rem;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23475569'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
        }
        .accordion-button:not(.collapsed)::after {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%232563eb'%3E%3Cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3E%3C/svg%3E");
        }
        .accordion-body {
            padding: 0.6rem 1.25rem 1.2rem;
            font-size: 0.93rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            position: relative;
            isolation: isolate;
            padding: 4rem 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.88) 0%, rgba(15, 23, 42, 0.70) 100%);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            color: rgba(241, 245, 249, 0.75);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 1.8rem;
        }
        .cta-section .btn-cta {
            background: var(--cyan);
            color: #fff;
            font-weight: 700;
            padding: 0.75rem 2rem;
            border-radius: 40px;
            border: none;
            font-size: 1.05rem;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(6, 182, 212, 0.30);
        }
        .cta-section .btn-cta:hover {
            background: var(--cyan-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(6, 182, 212, 0.40);
        }
        .cta-section .btn-cta:focus-visible {
            outline: 3px solid var(--cyan);
            outline-offset: 3px;
        }
        .cta-section .btn-outline-cta {
            background: transparent;
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.25);
            font-weight: 600;
            padding: 0.75rem 2rem;
            border-radius: 40px;
            font-size: 1.05rem;
            transition: all var(--transition);
        }
        .cta-section .btn-outline-cta:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .cta-section .btn-outline-cta:focus-visible {
            outline: 3px solid rgba(255, 255, 255, 0.4);
            outline-offset: 3px;
        }
        @media (max-width: 767.98px) {
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .btn-cta,
            .cta-section .btn-outline-cta {
                padding: 0.6rem 1.5rem;
                font-size: 0.95rem;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            padding: 3rem 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.3rem;
            color: var(--text-white);
            margin-bottom: 0.8rem;
        }
        .site-footer .footer-brand i {
            color: var(--cyan);
            font-size: 1.4rem;
        }
        .site-footer .footer-desc {
            color: rgba(241, 245, 249, 0.55);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 360px;
        }
        .site-footer .footer-title {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-white);
            margin-bottom: 0.8rem;
            letter-spacing: 0.02em;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 0.45rem;
        }
        .site-footer .footer-links a {
            color: rgba(241, 245, 249, 0.5);
            font-size: 0.88rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .site-footer .footer-links a:hover {
            color: var(--cyan);
            transform: translateX(3px);
        }
        .site-footer .footer-links a i {
            font-size: 0.55rem;
            color: rgba(255, 255, 255, 0.15);
        }
        .site-footer .footer-bottom {
            margin-top: 2rem;
            padding: 1.2rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
        }
        .site-footer .footer-bottom p {
            font-size: 0.82rem;
            color: rgba(241, 245, 249, 0.35);
        }
        .site-footer .footer-bottom a {
            color: rgba(241, 245, 249, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--cyan);
        }
        @media (max-width: 767.98px) {
            .site-footer {
                padding: 2rem 0 0;
            }
            .site-footer .footer-brand {
                font-size: 1.15rem;
            }
            .site-footer .footer-desc {
                max-width: 100%;
            }
            .site-footer .footer-bottom p {
                font-size: 0.75rem;
            }
        }

        /* ===== 统计数字 ===== */
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        @media (max-width: 767.98px) {
            .stat-number {
                font-size: 1.6rem;
            }
        }

        /* ===== 标签 ===== */
        .badge-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            background: rgba(37, 99, 235, 0.08);
            color: var(--accent);
            letter-spacing: 0.02em;
            transition: all var(--transition);
        }
        .badge-tag:hover {
            background: var(--accent);
            color: #fff;
        }
        .badge-tag.cyan {
            background: rgba(6, 182, 212, 0.08);
            color: var(--cyan);
        }
        .badge-tag.cyan:hover {
            background: var(--cyan);
            color: #fff;
        }
        .badge-tag.amber {
            background: rgba(245, 158, 11, 0.08);
            color: var(--amber);
        }
        .badge-tag.amber:hover {
            background: var(--amber);
            color: #fff;
        }

        /* ===== 图片装饰 ===== */
        .img-decorated {
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            transition: all var(--transition);
        }
        .img-decorated:hover {
            box-shadow: var(--shadow-lg);
            transform: scale(1.01);
        }

        /* ===== 分隔线 ===== */
        .divider-custom {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--cyan));
            border-radius: 4px;
            margin: 0.5rem 0 1.2rem;
        }
        .divider-custom.center {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 区块间距 ===== */
        .section-padding {
            padding: 4.5rem 0;
        }
        @media (max-width: 767.98px) {
            .section-padding {
                padding: 2.5rem 0;
            }
        }

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

        /* ===== 响应式微调 ===== */
        @media (max-width: 575.98px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .service-card .card-body .card-title {
                font-size: 1rem;
            }
        }

        /* ===== 按钮通用 ===== */
        .btn-primary-custom {
            background: var(--accent);
            color: #fff;
            font-weight: 600;
            padding: 0.6rem 1.6rem;
            border-radius: 40px;
            border: none;
            transition: all var(--transition);
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .btn-primary-custom:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.25);
        }
        .btn-primary-custom:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 3px;
        }