/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #121430;
            --primary-light: #1a1f4e;
            --secondary: #c9a23c;
            --secondary-hover: #dbb54a;
            --accent: #e8c84a;
            --bg-body: #ffffff;
            --bg-section: #f5f6fc;
            --bg-dark: #0b0d1a;
            --text-primary: #121430;
            --text-secondary: #4a4a6a;
            --text-muted: #7a7a9a;
            --text-light: #e8e8f0;
            --text-white: #ffffff;
            --border-color: #e2e4f0;
            --border-radius: 12px;
            --border-radius-sm: 8px;
            --border-radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(18, 20, 48, 0.06);
            --shadow-md: 0 8px 30px rgba(18, 20, 48, 0.08);
            --shadow-lg: 0 20px 60px rgba(18, 20, 48, 0.10);
            --shadow-gold: 0 4px 20px rgba(201, 162, 60, 0.25);
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 2rem;
            --spacing-lg: 4rem;
            --spacing-xl: 6rem;
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            color: var(--text-primary);
            background: var(--bg-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        .section-padding {
            padding: var(--spacing-xl) 0;
        }
        .section-padding-sm {
            padding: var(--spacing-lg) 0;
        }

        /* ===== Typography ===== */
        .heading-xl {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .heading-lg {
            font-size: 2.4rem;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }
        .heading-md {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.35;
        }
        .heading-sm {
            font-size: 1.25rem;
            font-weight: 600;
            line-height: 1.4;
        }
        .text-body {
            font-size: 1.0625rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .text-muted {
            color: var(--text-muted);
        }
        .text-gold {
            color: var(--secondary);
        }
        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: var(--secondary);
            margin-bottom: 0.75rem;
            position: relative;
            padding-left: 2rem;
        }
        .section-label::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            width: 1.25rem;
            height: 2px;
            background: var(--secondary);
            transform: translateY(-50%);
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
        }

        /* ===== Buttons ===== */
        .btn {
            border-radius: var(--border-radius-sm);
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-primary {
            background: var(--secondary);
            color: var(--text-primary);
            box-shadow: var(--shadow-gold);
        }
        .btn-primary:hover {
            background: var(--secondary-hover);
            color: var(--text-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(201, 162, 60, 0.35);
        }
        .btn-outline-light {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--text-white);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-outline-primary {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline-primary:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 0.9rem 2.4rem;
            font-size: 1.1rem;
            border-radius: var(--border-radius);
        }
        .btn-sm {
            padding: 0.45rem 1.2rem;
            font-size: 0.9rem;
        }

        /* ===== Navbar ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 12px rgba(18, 20, 48, 0.04);
        }
        .navbar-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.6rem 0;
        }
        .navbar-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .navbar-brand:hover {
            color: var(--primary);
        }
        .navbar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 1.1rem;
        }
        .navbar-top-actions {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .search-toggle {
            background: none;
            border: none;
            color: var(--text-secondary);
            font-size: 1.2rem;
            padding: 0.4rem 0.6rem;
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
        }
        .search-toggle:hover {
            color: var(--primary);
            background: var(--bg-section);
        }
        .navbar-channel {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.3rem 0 0;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .navbar-channel::-webkit-scrollbar {
            display: none;
        }
        .channel-tab {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1.2rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 100px;
            white-space: nowrap;
            transition: var(--transition);
            border: none;
            background: none;
            cursor: pointer;
            text-decoration: none;
        }
        .channel-tab:hover {
            color: var(--primary);
            background: rgba(18, 20, 48, 0.05);
        }
        .channel-tab.active {
            color: var(--text-white);
            background: var(--primary);
            font-weight: 600;
            box-shadow: var(--shadow-sm);
        }
        .channel-tab.active:hover {
            color: var(--text-white);
            background: var(--primary-light);
        }
        .channel-tab i {
            margin-right: 0.4rem;
            font-size: 0.85rem;
        }
        .navbar-toggler {
            border: none;
            background: none;
            font-size: 1.4rem;
            color: var(--text-primary);
            padding: 0.25rem 0.5rem;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.45;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 13, 26, 0.92) 0%, rgba(11, 13, 26, 0.70) 50%, rgba(11, 13, 26, 0.88) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: var(--spacing-lg) 0;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(201, 162, 60, 0.15);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(201, 162, 60, 0.25);
            padding: 0.4rem 1.2rem;
            border-radius: 100px;
            color: var(--accent);
            font-size: 0.9rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
        }
        .hero-title {
            font-size: 3.6rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 1.2rem;
        }
        .hero-title .highlight {
            color: var(--accent);
        }
        .hero-subtitle {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 580px;
            line-height: 1.8;
            margin-bottom: 2rem;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }
        .hero-stat {
            display: flex;
            align-items: center;
            gap: 2.5rem;
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 0.2rem;
        }

        /* ===== Cards ===== */
        .card-custom {
            border: none;
            border-radius: var(--border-radius);
            background: var(--text-white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-custom .card-img-top {
            border-radius: 0;
            object-fit: cover;
            height: 200px;
        }
        .card-custom .card-body {
            padding: 1.5rem;
        }
        .card-custom .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
            color: var(--text-primary);
        }
        .card-custom .card-text {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .card-custom .card-meta {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.8rem;
        }
        .category-card {
            position: relative;
            border-radius: var(--border-radius);
            overflow: hidden;
            height: 100%;
            min-height: 280px;
            display: flex;
            align-items: flex-end;
            background: var(--bg-dark);
            box-shadow: var(--shadow-md);
            transition: var(--transition);
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .category-card .card-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.5;
            transition: var(--transition);
        }
        .category-card:hover .card-bg {
            opacity: 0.65;
            transform: scale(1.05);
        }
        .category-card .card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(11, 13, 26, 0.85) 0%, rgba(11, 13, 26, 0.2) 70%, transparent 100%);
            z-index: 1;
        }
        .category-card .card-body {
            position: relative;
            z-index: 2;
            padding: 2rem 1.8rem;
            color: var(--text-white);
            width: 100%;
        }
        .category-card .card-body .cat-icon {
            width: 48px;
            height: 48px;
            background: rgba(201, 162, 60, 0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }
        .category-card .card-body h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
        }
        .category-card .card-body p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 1rem;
        }
        .category-card .card-body .cat-link {
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .category-card .card-body .cat-link:hover {
            color: var(--secondary-hover);
        }

        /* ===== Stats Section ===== */
        .stats-section {
            background: var(--bg-dark);
            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-grid {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 2rem;
            padding: var(--spacing-lg) 0;
        }
        .stat-item {
            text-align: center;
            padding: 1.5rem;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--border-radius);
            border: 1px solid rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(10px);
        }
        .stat-item .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 0.3rem;
        }
        .stat-item .stat-icon {
            font-size: 1.6rem;
            color: rgba(201, 162, 60, 0.3);
            margin-bottom: 0.6rem;
        }

        /* ===== Features / Process ===== */
        .feature-card {
            text-align: center;
            padding: 2rem 1.5rem;
            border-radius: var(--border-radius);
            background: var(--text-white);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            border: 1px solid var(--border-color);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--secondary);
        }
        .feature-card .feat-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 1.2rem;
            background: var(--bg-section);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--secondary);
            transition: var(--transition);
        }
        .feature-card:hover .feat-icon {
            background: var(--secondary);
            color: var(--text-white);
        }
        .feature-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-section);
        }
        .accordion-item {
            border: none;
            background: transparent;
            margin-bottom: 0.75rem;
            border-radius: var(--border-radius) !important;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }
        .accordion-item:first-of-type,
        .accordion-item:last-of-type {
            border-radius: var(--border-radius) !important;
        }
        .accordion-header {
            background: var(--text-white);
        }
        .accordion-button {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            background: var(--text-white);
            padding: 1.2rem 1.5rem;
            border: none;
            box-shadow: none;
            border-radius: var(--border-radius) !important;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--text-white);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .accordion-button::after {
            background-size: 1rem;
            opacity: 0.5;
        }
        .accordion-body {
            padding: 0 1.5rem 1.2rem;
            background: var(--text-white);
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            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: 0.1;
            z-index: 0;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: var(--spacing-xl) 0;
        }
        .cta-content h2 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 1rem;
        }
        .cta-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.65);
            max-width: 560px;
            margin: 0 auto 2rem;
        }
        .cta-form {
            display: flex;
            max-width: 480px;
            margin: 0 auto;
            gap: 0.75rem;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form .form-control {
            flex: 1;
            min-width: 200px;
            padding: 0.85rem 1.2rem;
            border-radius: var(--border-radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-white);
            font-size: 1rem;
            backdrop-filter: blur(10px);
        }
        .cta-form .form-control::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .cta-form .form-control:focus {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(201, 162, 60, 0.15);
            color: var(--text-white);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: var(--spacing-lg) 0 var(--spacing-md);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer h5 {
            color: var(--text-white);
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 1.2rem;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .site-footer a:hover {
            color: var(--accent);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links li a {
            font-size: 0.95rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--bg-dark);
            font-size: 0.9rem;
        }
        .footer-desc {
            color: rgba(255, 255, 255, 0.45);
            font-size: 0.9rem;
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }
        .footer-social {
            display: flex;
            gap: 0.8rem;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.5);
            font-size: 1rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: var(--bg-dark);
        }

        /* ===== News List (CMS) ===== */
        .news-item {
            display: flex;
            gap: 1.2rem;
            padding: 1.2rem 0;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            padding-left: 0.5rem;
        }
        .news-item .news-thumb {
            width: 100px;
            min-width: 100px;
            height: 72px;
            border-radius: var(--border-radius-sm);
            overflow: hidden;
            background: var(--bg-section);
            flex-shrink: 0;
        }
        .news-item .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-item .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-info .news-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }
        .news-item:hover .news-info .news-title {
            color: var(--secondary);
        }
        .news-item .news-info .news-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
        }
        .news-item .news-info .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .news-empty {
            text-align: center;
            padding: 2rem;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-section);
            border-radius: var(--border-radius);
        }

        /* ===== Section Background Variants ===== */
        .bg-section-alt {
            background: var(--bg-section);
        }
        .bg-dark-section {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .bg-dark-section .section-title {
            color: var(--text-white);
        }
        .bg-dark-section .section-subtitle {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ===== Responsive ===== */
        @media (max-width: 992px) {
            .heading-xl {
                font-size: 2.6rem;
            }
            .heading-lg {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .hero-title {
                font-size: 2.8rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1.2rem;
            }
            .stat-item .stat-number {
                font-size: 2.2rem;
            }
            .hero-stat {
                gap: 1.5rem;
                flex-wrap: wrap;
            }
            .hero-stat-item {
                flex: 1;
                min-width: 80px;
            }
            .hero-stat-number {
                font-size: 1.6rem;
            }
            .navbar-channel {
                padding: 0.3rem 0 0.5rem;
            }
            .cta-content h2 {
                font-size: 2rem;
            }
            .footer-brand {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: var(--spacing-lg) 0;
            }
            .section-padding-sm {
                padding: var(--spacing-md) 0;
            }
            .heading-xl {
                font-size: 2rem;
            }
            .heading-lg {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-section {
                min-height: 70vh;
            }
            .hero-stat {
                gap: 1rem;
                margin-top: 2rem;
                padding-top: 1.5rem;
            }
            .hero-stat-number {
                font-size: 1.4rem;
            }
            .category-card {
                min-height: 220px;
            }
            .category-card .card-body h3 {
                font-size: 1.3rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .stat-item .stat-number {
                font-size: 1.8rem;
            }
            .navbar-top {
                padding: 0.4rem 0;
            }
            .navbar-brand {
                font-size: 1.2rem;
            }
            .navbar-brand .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
            .channel-tab {
                font-size: 0.85rem;
                padding: 0.4rem 1rem;
            }
            .news-item {
                flex-direction: column;
            }
            .news-item .news-thumb {
                width: 100%;
                height: 140px;
            }
            .cta-content {
                padding: var(--spacing-lg) 0;
            }
            .cta-content h2 {
                font-size: 1.6rem;
            }
            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }
            .cta-form .form-control {
                min-width: auto;
            }
            .site-footer {
                padding: var(--spacing-md) 0 var(--spacing-sm);
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 0.3rem 1rem;
            }
            .heading-xl {
                font-size: 1.6rem;
            }
            .heading-lg {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .stat-item {
                padding: 1rem;
            }
            .stat-item .stat-number {
                font-size: 1.5rem;
            }
            .feature-card {
                padding: 1.5rem 1rem;
            }
            .category-card {
                min-height: 180px;
            }
            .category-card .card-body {
                padding: 1.5rem;
            }
            .category-card .card-body h3 {
                font-size: 1.1rem;
            }
            .hero-stat-item {
                min-width: 60px;
            }
            .hero-stat-number {
                font-size: 1.2rem;
            }
            .hero-stat-label {
                font-size: 0.7rem;
            }
            .navbar-brand {
                font-size: 1rem;
            }
            .navbar-brand .brand-icon {
                width: 28px;
                height: 28px;
                font-size: 0.8rem;
            }
            .channel-tab {
                font-size: 0.8rem;
                padding: 0.3rem 0.8rem;
            }
            .btn-lg {
                padding: 0.7rem 1.6rem;
                font-size: 0.95rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --accent: #e94560;
            --accent-light: #ff6b81;
            --star-gold: #f5c518;
            --star-dust: #c4c4c4;
            --deep-space: #0f0f1a;
            --cosmic-blue: #0f3460;
            --text-primary: #e8e8e8;
            --text-secondary: #a0a0b0;
            --text-muted: #6c6c80;
            --bg-card: rgba(26, 26, 46, 0.85);
            --bg-card-hover: rgba(22, 33, 62, 0.95);
            --border-color: rgba(233, 69, 96, 0.2);
            --border-glow: rgba(233, 69, 96, 0.4);
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --spacing-section: 5rem;
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--deep-space);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: var(--accent-light);
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 4px;
            border-radius: 4px;
        }

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

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

        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 导航 ===== */
        .site-header {
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .navbar-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.85rem 0;
            gap: 1rem;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            transition: opacity 0.3s;
        }
        .navbar-brand:hover {
            color: var(--text-primary);
            opacity: 0.85;
        }
        .navbar-brand .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--accent), var(--star-gold));
            border-radius: 50%;
            color: #fff;
            font-size: 1.15rem;
            box-shadow: 0 0 20px rgba(233, 69, 96, 0.3);
        }

        .navbar-top-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .search-toggle {
            background: none;
            border: none;
            color: var(--text-secondary);
            font-size: 1.2rem;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            transition: all 0.3s;
            cursor: pointer;
        }
        .search-toggle:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.08);
        }
        .search-toggle:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .navbar-toggler {
            background: none;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-size: 1.3rem;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s;
        }
        .navbar-toggler:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
        }
        .navbar-toggler:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .navbar-channel {
            display: flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0 0.75rem 0;
            overflow-x: auto;
            flex-wrap: nowrap;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .navbar-channel::-webkit-scrollbar {
            display: none;
        }

        .channel-tab {
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.55rem 1.3rem;
            border-radius: 100px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid transparent;
            transition: all 0.3s ease;
            white-space: nowrap;
        }
        .channel-tab i {
            font-size: 0.9rem;
        }
        .channel-tab:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border-color);
        }
        .channel-tab.active {
            color: #fff;
            background: linear-gradient(135deg, var(--accent), var(--cosmic-blue));
            border-color: var(--accent);
            box-shadow: 0 4px 20px rgba(233, 69, 96, 0.25);
        }
        .channel-tab:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 文章页 ===== */
        .article-hero {
            position: relative;
            padding: 4rem 0 3rem;
            background: linear-gradient(135deg, var(--deep-space) 0%, var(--primary) 50%, var(--deep-space) 100%);
            border-bottom: 1px solid var(--border-color);
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }
        .article-hero .container {
            position: relative;
            z-index: 1;
        }

        .article-breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.4rem 0.8rem;
            margin-bottom: 1.5rem;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .article-breadcrumb a {
            color: var(--text-secondary);
            transition: color 0.3s;
        }
        .article-breadcrumb a:hover {
            color: var(--accent);
        }
        .article-breadcrumb .sep {
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .article-breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
        }

        .article-category-badge {
            display: inline-block;
            padding: 0.3rem 1rem;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 600;
            background: linear-gradient(135deg, var(--accent), var(--cosmic-blue));
            color: #fff;
            margin-bottom: 1rem;
            box-shadow: 0 2px 12px rgba(233, 69, 96, 0.2);
        }

        .article-title {
            font-size: 2.5rem;
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: -0.5px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1rem 2rem;
            font-size: 0.9rem;
            color: var(--text-secondary);
        }
        .article-meta i {
            margin-right: 0.4rem;
            color: var(--accent);
        }

        .article-body {
            padding: 4rem 0 5rem;
        }

        .article-content {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 2.5rem 3rem;
            box-shadow: var(--shadow-md);
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-primary);
        }
        .article-content h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-top: 2.5rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }
        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
            color: var(--text-primary);
        }
        .article-content p {
            margin-bottom: 1.2rem;
        }
        .article-content ul,
        .article-content ol {
            margin-bottom: 1.2rem;
            padding-left: 1.5rem;
        }
        .article-content li {
            margin-bottom: 0.5rem;
        }
        .article-content a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-content a:hover {
            color: var(--accent-light);
        }
        .article-content blockquote {
            border-left: 4px solid var(--accent);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            background: rgba(233, 69, 96, 0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-content img {
            border-radius: var(--radius-sm);
            margin: 1.5rem auto;
            box-shadow: var(--shadow-sm);
        }
        .article-content .wp-caption {
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 1.5rem;
        }

        .article-footer-tags {
            margin-top: 2.5rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.6rem;
        }
        .article-footer-tags .tag-label {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .article-footer-tags .tag-item {
            display: inline-block;
            padding: 0.25rem 1rem;
            border-radius: 100px;
            font-size: 0.8rem;
            background: rgba(233, 69, 96, 0.12);
            color: var(--accent-light);
            border: 1px solid rgba(233, 69, 96, 0.2);
            transition: all 0.3s;
        }
        .article-footer-tags .tag-item:hover {
            background: rgba(233, 69, 96, 0.25);
            color: #fff;
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-top: 1.5rem;
        }
        .article-share span {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: all 0.3s;
            font-size: 1rem;
        }
        .article-share a:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(233, 69, 96, 0.3);
        }

        /* ===== 侧边栏 ===== */
        .article-sidebar .sidebar-widget {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            margin-bottom: 1.5rem;
            box-shadow: var(--shadow-sm);
        }
        .sidebar-widget h5 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .sidebar-widget h5 i {
            color: var(--accent);
        }
        .sidebar-widget ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-widget ul li {
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }
        .sidebar-widget ul li:last-child {
            border-bottom: none;
        }
        .sidebar-widget ul li a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.3s;
        }
        .sidebar-widget ul li a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }
        .sidebar-widget ul li a i {
            font-size: 0.7rem;
            color: var(--accent);
        }

        .sidebar-cta-widget {
            background: linear-gradient(135deg, var(--primary), var(--deep-space));
            border: 1px solid var(--border-glow);
        }
        .sidebar-cta-widget h5 {
            color: var(--star-gold);
        }
        .sidebar-cta-widget p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 1rem;
        }

        /* ===== 相关文章 ===== */
        .related-section {
            padding: 4rem 0 5rem;
            background: linear-gradient(0deg, var(--deep-space) 0%, var(--primary-light) 100%);
            border-top: 1px solid var(--border-color);
        }
        .related-section .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 2.5rem;
            text-align: center;
        }
        .related-section .section-title i {
            color: var(--accent);
            margin-right: 0.5rem;
        }

        .related-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all 0.4s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-glow);
            background: var(--bg-card-hover);
        }
        .related-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--primary);
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .related-card:hover .card-img img {
            transform: scale(1.05);
        }
        .related-card .card-body {
            padding: 1.25rem 1.5rem 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .card-category {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 0.4rem;
        }
        .related-card .card-title {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
            transition: color 0.3s;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card:hover .card-title {
            color: var(--accent-light);
        }
        .related-card .card-text {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.75rem;
            flex: 1;
        }
        .related-card .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-top: auto;
        }
        .related-card .card-meta i {
            margin-right: 0.3rem;
            font-size: 0.7rem;
        }

        /* ===== 404 状态 ===== */
        .not-found-block {
            text-align: center;
            padding: 4rem 2rem;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }
        .not-found-block .nf-icon {
            font-size: 4rem;
            color: var(--accent);
            margin-bottom: 1rem;
            opacity: 0.6;
        }
        .not-found-block h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .not-found-block p {
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            font-size: 1.05rem;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.5rem;
            border-radius: 100px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            transition: all 0.3s ease;
            cursor: pointer;
            text-decoration: none;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 4px;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--cosmic-blue));
            color: #fff;
            box-shadow: 0 4px 20px rgba(233, 69, 96, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(233, 69, 96, 0.4);
            color: #fff;
            background: linear-gradient(135deg, var(--accent-light), var(--cosmic-blue));
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-color);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(233, 69, 96, 0.06);
        }
        .btn-sm {
            padding: 0.4rem 1.1rem;
            font-size: 0.8rem;
        }
        .btn-lg {
            padding: 0.8rem 2rem;
            font-size: 1rem;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary);
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 0;
            color: var(--text-secondary);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
        }
        .footer-brand .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--star-gold));
            border-radius: 50%;
            color: #fff;
            font-size: 1rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 1.25rem;
            color: var(--text-muted);
        }
        .footer-social {
            display: flex;
            gap: 0.75rem;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: all 0.3s;
            font-size: 1rem;
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #fff;
            border-color: var(--accent);
            transform: translateY(-3px);
            box-shadow: 0 4px 16px rgba(233, 69, 96, 0.25);
        }

        .site-footer h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.55rem;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .footer-links a:hover {
            color: var(--accent-light);
            transform: translateX(4px);
        }
        .footer-links a i {
            font-size: 0.7rem;
            color: var(--accent);
        }

        .footer-bottom {
            margin-top: 3rem;
            padding: 1.5rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .navbar-channel {
                padding-bottom: 0.5rem;
                gap: 0.2rem;
            }
            .channel-tab {
                padding: 0.45rem 1rem;
                font-size: 0.82rem;
            }
            .article-title {
                font-size: 2rem;
            }
            .article-content {
                padding: 1.5rem 1.5rem;
            }
            .article-sidebar {
                margin-top: 2rem;
            }
            .related-section .section-title {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 3rem;
            }
            .navbar-top {
                padding: 0.65rem 0;
            }
            .navbar-brand {
                font-size: 1.25rem;
            }
            .navbar-brand .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }
            .article-hero {
                padding: 2.5rem 0 2rem;
            }
            .article-title {
                font-size: 1.6rem;
            }
            .article-meta {
                gap: 0.6rem 1.2rem;
                font-size: 0.82rem;
            }
            .article-content {
                padding: 1.25rem 1.25rem;
                font-size: 0.95rem;
                border-radius: var(--radius-sm);
            }
            .article-content h2 {
                font-size: 1.3rem;
            }
            .article-content h3 {
                font-size: 1.1rem;
            }
            .article-body {
                padding: 2.5rem 0 3rem;
            }
            .related-section {
                padding: 2.5rem 0 3rem;
            }
            .related-section .section-title {
                font-size: 1.3rem;
                margin-bottom: 1.5rem;
            }
            .site-footer {
                padding: 3rem 0 0;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .not-found-block {
                padding: 2.5rem 1.5rem;
            }
            .not-found-block .nf-icon {
                font-size: 3rem;
            }
            .not-found-block h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .navbar-brand {
                font-size: 1.05rem;
            }
            .navbar-brand .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.8rem;
            }
            .channel-tab {
                padding: 0.35rem 0.8rem;
                font-size: 0.75rem;
                gap: 0.3rem;
            }
            .channel-tab i {
                font-size: 0.7rem;
            }
            .article-title {
                font-size: 1.3rem;
            }
            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.4rem;
            }
            .article-content {
                padding: 1rem;
                font-size: 0.9rem;
            }
            .article-content h2 {
                font-size: 1.15rem;
            }
            .article-content h3 {
                font-size: 1rem;
            }
            .article-footer-tags {
                flex-direction: column;
                align-items: flex-start;
            }
            .article-share {
                flex-wrap: wrap;
            }
            .related-card .card-body {
                padding: 1rem 1.15rem 1.25rem;
            }
            .related-card .card-title {
                font-size: 0.95rem;
            }
            .footer-brand {
                font-size: 1.1rem;
            }
            .site-footer h5 {
                font-size: 0.85rem;
            }
            .footer-links a {
                font-size: 0.82rem;
            }
        }

        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }
        .animate-fade-in-up-delay {
            animation: fadeInUp 0.6s ease 0.15s forwards;
            opacity: 0;
        }
        .animate-fade-in-up-delay-2 {
            animation: fadeInUp 0.6s ease 0.3s forwards;
            opacity: 0;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #2d2d5e;
            --primary-dark: #0f0f1a;
            --accent: #f0c040;
            --accent-light: #f5d870;
            --accent-dark: #d4a830;
            --bg-body: #0a0a14;
            --bg-card: #14142a;
            --bg-section: #101020;
            --bg-section-alt: #1a1a35;
            --text-primary: #f0ece4;
            --text-secondary: #b8b0a8;
            --text-muted: #7a7a8a;
            --border-color: #2a2a4a;
            --border-light: #3a3a5a;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1280px;
            --header-top-height: 64px;
            --nav-channel-height: 48px;
            --header-total: calc(var(--header-top-height) + var(--nav-channel-height));
        }

        /* ===== Reset / Base ===== */
        *,
        *::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-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            padding-top: var(--header-total);
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }
        h1 {
            font-size: 2.8rem;
        }
        h2 {
            font-size: 2.2rem;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.2rem;
        }
        h5 {
            font-size: 1rem;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            body {
                padding-top: calc(var(--header-top-height) + 44px);
            }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(10, 10, 20, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .site-header .container {
            padding-top: 0;
            padding-bottom: 0;
        }
        .navbar-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-top-height);
            gap: 16px;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            transition: var(--transition);
        }
        .navbar-brand:hover {
            color: var(--accent);
            transform: scale(1.02);
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .navbar-brand:hover .brand-icon {
            transform: rotate(20deg) scale(1.05);
        }
        .navbar-top-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-toggle {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
        }
        .search-toggle:hover {
            background: var(--border-color);
            color: var(--accent);
            border-color: var(--accent);
        }
        .btn-primary {
            background: var(--accent);
            border: none;
            color: var(--primary-dark);
            font-weight: 600;
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
        }
        .btn-primary:hover {
            background: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(240, 192, 64, 0.3);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }
        .btn-outline-accent {
            background: transparent;
            border: 1px solid var(--accent);
            color: var(--accent);
            font-weight: 600;
            padding: 8px 20px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
        }
        .btn-outline-accent:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(240, 192, 64, 0.2);
        }
        .btn-sm {
            padding: 6px 16px;
            font-size: 0.85rem;
        }
        .navbar-toggler {
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1.2rem;
        }
        .navbar-toggler:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        /* 第二层频道导航 */
        .navbar-channel {
            display: flex;
            align-items: center;
            gap: 4px;
            padding: 4px 0 8px 0;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .navbar-channel::-webkit-scrollbar {
            display: none;
        }
        .channel-tab {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 100px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
        }
        .channel-tab i {
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .channel-tab:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--border-light);
        }
        .channel-tab.active {
            color: var(--accent);
            background: rgba(240, 192, 64, 0.12);
            border-color: rgba(240, 192, 64, 0.25);
            font-weight: 600;
        }
        .channel-tab.active i {
            opacity: 1;
        }
        .channel-tab:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        @media (max-width: 991px) {
            .navbar-channel {
                flex-wrap: nowrap;
                padding: 8px 0 12px 0;
                gap: 6px;
            }
            .channel-tab {
                padding: 8px 16px;
                font-size: 0.82rem;
            }
            #mainNavbar.collapse:not(.show) {
                display: none;
            }
            #mainNavbar.collapse.show {
                display: block;
                border-top: 1px solid var(--border-color);
                margin-top: 0;
            }
        }
        @media (min-width: 992px) {
            #mainNavbar.collapse {
                display: block !important;
            }
            .navbar-toggler.d-lg-none {
                display: none !important;
            }
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            position: relative;
            padding: 80px 0 60px;
            background: var(--bg-section);
            overflow: hidden;
            border-bottom: 1px solid var(--border-color);
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 10, 20, 0.88) 0%, rgba(10, 10, 20, 0.6) 60%, transparent 100%);
            z-index: 1;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .page-banner .breadcrumb-nav a {
            color: var(--text-secondary);
        }
        .page-banner .breadcrumb-nav a:hover {
            color: var(--accent);
        }
        .page-banner .breadcrumb-nav span {
            color: var(--text-muted);
        }
        .page-banner .breadcrumb-nav .sep {
            color: var(--border-light);
        }
        .page-banner h1 {
            font-size: 3rem;
            font-weight: 800;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--text-primary) 40%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .page-banner .lead {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
        }
        .page-banner .banner-stats {
            display: flex;
            gap: 32px;
            margin-top: 32px;
            flex-wrap: wrap;
        }
        .page-banner .banner-stats .stat-item {
            display: flex;
            flex-direction: column;
        }
        .page-banner .banner-stats .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .page-banner .banner-stats .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .page-banner {
                padding: 48px 0 40px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner .lead {
                font-size: 1rem;
            }
            .page-banner .banner-stats {
                gap: 20px;
            }
            .page-banner .banner-stats .stat-number {
                font-size: 1.4rem;
            }
        }

        /* ===== 板块通用 ===== */
        .section-padding {
            padding: 80px 0;
        }
        .section-padding-sm {
            padding: 60px 0;
        }
        .section-title-wrap {
            margin-bottom: 48px;
        }
        .section-title-wrap .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: var(--accent);
            background: rgba(240, 192, 64, 0.1);
            padding: 4px 14px;
            border-radius: 100px;
            margin-bottom: 12px;
            border: 1px solid rgba(240, 192, 64, 0.15);
        }
        .section-title-wrap h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .section-title-wrap p {
            color: var(--text-secondary);
            max-width: 600px;
            font-size: 1.05rem;
        }
        .section-title-wrap.text-center p {
            margin-left: auto;
            margin-right: auto;
        }

        @media (max-width: 768px) {
            .section-padding {
                padding: 48px 0;
            }
            .section-padding-sm {
                padding: 36px 0;
            }
            .section-title-wrap {
                margin-bottom: 32px;
            }
            .section-title-wrap h2 {
                font-size: 1.6rem;
            }
        }

        .bg-section-alt {
            background: var(--bg-section-alt);
        }
        .bg-section-dark {
            background: var(--primary-dark);
        }

        /* ===== 卡片系统 ===== */
        .card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .card .card-img-top {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-bottom: 1px solid var(--border-color);
        }
        .card .card-body {
            padding: 24px;
        }
        .card .card-body .card-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(240, 192, 64, 0.1);
            padding: 2px 12px;
            border-radius: 100px;
            margin-bottom: 10px;
            border: 1px solid rgba(240, 192, 64, 0.15);
        }
        .card .card-body .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
        }
        .card .card-body .card-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .card .card-body .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .card .card-body .card-meta i {
            margin-right: 4px;
        }
        .card .card-footer {
            background: transparent;
            border-top: 1px solid var(--border-color);
            padding: 16px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        /* ===== 图文混合卡片 ===== */
        .feature-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            height: 100%;
        }
        .feature-card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .feature-card .feature-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-bottom: 1px solid var(--border-color);
        }
        .feature-card .feature-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .feature-card .feature-body .feature-icon {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(240, 192, 64, 0.1);
            border-radius: var(--radius-sm);
            color: var(--accent);
            font-size: 1.2rem;
            margin-bottom: 16px;
            border: 1px solid rgba(240, 192, 64, 0.15);
        }
        .feature-card .feature-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-card .feature-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }
        .feature-card .feature-body .feature-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 12px;
        }
        .feature-card .feature-body .feature-link:hover {
            gap: 12px;
        }

        /* ===== 观察步骤 / 流程 ===== */
        .step-item {
            display: flex;
            gap: 24px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .step-item:last-child {
            border-bottom: none;
        }
        .step-item .step-number {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: var(--primary-dark);
            font-size: 1.4rem;
            font-weight: 800;
            border-radius: var(--radius-sm);
            line-height: 1;
        }
        .step-item .step-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .step-item .step-content p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 640px;
        }

        @media (max-width: 600px) {
            .step-item {
                flex-direction: column;
                gap: 12px;
            }
            .step-item .step-number {
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
        }

        /* ===== 标签云 ===== */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 18px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: 100px;
            font-size: 0.85rem;
            color: var(--text-secondary);
            transition: var(--transition);
            cursor: default;
        }
        .tag-item:hover {
            background: rgba(240, 192, 64, 0.1);
            border-color: rgba(240, 192, 64, 0.25);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .tag-item i {
            font-size: 0.75rem;
            opacity: 0.7;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item .faq-question {
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: pointer;
            margin-bottom: 0;
        }
        .faq-item .faq-question i {
            color: var(--accent);
            font-size: 1rem;
            width: 20px;
            flex-shrink: 0;
        }
        .faq-item .faq-answer {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-top: 12px;
            padding-left: 32px;
            border-left: 2px solid var(--border-color);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            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: 0.1;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section .cta-box {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
        }
        .cta-section .cta-box h2 {
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .cta-section .cta-box p {
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
        }
        .cta-section .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-section .cta-form .form-control {
            flex: 1;
            min-width: 200px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            padding: 12px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .cta-section .cta-form .form-control:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(240, 192, 64, 0.15);
            background: rgba(255, 255, 255, 0.08);
        }
        .cta-section .cta-form .form-control::placeholder {
            color: var(--text-muted);
        }
        .cta-section .cta-form .btn-primary {
            padding: 12px 32px;
            font-size: 1rem;
        }

        @media (max-width: 768px) {
            .cta-section .cta-box {
                padding: 32px 20px;
            }
            .cta-section .cta-box h2 {
                font-size: 1.5rem;
            }
            .cta-section .cta-form .form-control {
                min-width: 100%;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0 0;
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            margin-bottom: 16px;
        }
        .site-footer .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: var(--radius-sm);
            font-size: 1rem;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 320px;
            margin-bottom: 20px;
        }
        .site-footer .footer-social {
            display: flex;
            gap: 12px;
        }
        .site-footer .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 1.1rem;
            transition: var(--transition);
        }
        .site-footer .footer-social a:hover {
            background: rgba(240, 192, 64, 0.1);
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-3px);
        }
        .site-footer h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }
        .site-footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .site-footer .footer-links a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
            transform: translateX(4px);
        }
        .site-footer .footer-links a i {
            font-size: 0.75rem;
            opacity: 0.6;
        }
        .site-footer .footer-bottom {
            margin-top: 40px;
            padding: 20px 0;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .site-footer .footer-bottom a {
            color: var(--text-muted);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }

        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 0 0;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 额外组件 ===== */
        .divider {
            height: 1px;
            background: var(--border-color);
            margin: 0;
            border: none;
        }
        .divider-accent {
            height: 3px;
            width: 60px;
            background: var(--accent);
            border-radius: 4px;
            margin: 16px 0 24px 0;
        }
        .text-accent {
            color: var(--accent) !important;
        }
        .bg-glass {
            background: rgba(20, 20, 42, 0.7);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid var(--border-color);
        }
        .rounded-xl {
            border-radius: var(--radius-xl);
        }
        .rounded-lg {
            border-radius: var(--radius-lg);
        }
        .shadow-hover:hover {
            box-shadow: var(--shadow-lg);
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 16px;
        }
        .gap-4 {
            gap: 24px;
        }
        .mt-2 {
            margin-top: 8px;
        }
        .mt-3 {
            margin-top: 16px;
        }
        .mt-4 {
            margin-top: 24px;
        }
        .mb-2 {
            margin-bottom: 8px;
        }
        .mb-3 {
            margin-bottom: 16px;
        }
        .mb-4 {
            margin-bottom: 24px;
        }

        /* ===== 响应式增强 ===== */
        @media (max-width: 576px) {
            .navbar-brand {
                font-size: 1.1rem;
            }
            .navbar-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .navbar-top-actions .btn-primary.d-none.d-md-inline-flex {
                display: none !important;
            }
            .channel-tab {
                font-size: 0.78rem;
                padding: 6px 12px;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .page-banner .lead {
                font-size: 0.92rem;
            }
            .card .card-body {
                padding: 16px;
            }
            .feature-card .feature-body {
                padding: 16px;
            }
            .faq-item {
                padding: 16px 18px;
            }
            .faq-item .faq-answer {
                padding-left: 16px;
            }
        }

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-body);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--border-light);
        }

        /* ===== 选中样式 ===== */
        ::selection {
            background: rgba(240, 192, 64, 0.3);
            color: var(--text-primary);
        }

        /* ===== 分类页专属 ===== */
        .guide-hero-tagline {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 20px;
        }
        .guide-hero-tagline .badge-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            border-radius: 100px;
            font-size: 0.82rem;
            color: var(--text-secondary);
        }
        .guide-hero-tagline .badge-pill i {
            color: var(--accent);
        }

        .resource-grid .card {
            transition: var(--transition);
        }
        .resource-grid .card:hover .card-img-top {
            transform: scale(1.02);
        }
        .resource-grid .card .card-img-top {
            transition: var(--transition);
        }

        .topic-row {
            display: flex;
            align-items: flex-start;
            gap: 32px;
            padding: 32px 0;
            border-bottom: 1px solid var(--border-color);
        }
        .topic-row:last-child {
            border-bottom: none;
        }
        .topic-row .topic-img {
            flex-shrink: 0;
            width: 200px;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
        }
        .topic-row .topic-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .topic-row .topic-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .topic-row .topic-body .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 12px;
        }
        .topic-row .topic-body .topic-tags span {
            font-size: 0.75rem;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            padding: 2px 12px;
            border-radius: 100px;
            border: 1px solid var(--border-color);
        }

        @media (max-width: 768px) {
            .topic-row {
                flex-direction: column;
                gap: 16px;
            }
            .topic-row .topic-img {
                width: 100%;
                aspect-ratio: 16 / 9;
            }
        }

        .tool-list .tool-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: var(--transition);
            margin-bottom: 10px;
        }
        .tool-list .tool-item:hover {
            border-color: var(--border-light);
            transform: translateX(4px);
        }
        .tool-list .tool-item .tool-icon {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(240, 192, 64, 0.1);
            border-radius: var(--radius-sm);
            color: var(--accent);
            font-size: 1.1rem;
            flex-shrink: 0;
        }
        .tool-list .tool-item .tool-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .tool-list .tool-item .tool-info p {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin: 0;
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a237e;
            --primary-light: #3f51b5;
            --primary-dark: #0d1452;
            --secondary: #ff6f00;
            --secondary-light: #ffab40;
            --accent: #00bcd4;
            --bg-dark: #0a0e27;
            --bg-card: #ffffff;
            --bg-light: #f5f7ff;
            --bg-section-alt: #eef1fa;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #7a7a9a;
            --text-white: #ffffff;
            --border-color: #e0e3f0;
            --border-light: #f0f2f8;
            --shadow-sm: 0 2px 8px rgba(26, 35, 126, 0.08);
            --shadow-md: 0 6px 24px rgba(26, 35, 126, 0.12);
            --shadow-lg: 0 16px 48px rgba(26, 35, 126, 0.16);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1280px;
            --header-top-height: 60px;
            --nav-channel-height: 52px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        a:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }
        ul,
        ol {
            padding-left: 1.25rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
            margin-bottom: 0.5rem;
            color: var(--text-primary);
        }
        h1 {
            font-size: 2.75rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: 1.5rem;
        }
        h4 {
            font-size: 1.25rem;
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
            color: var(--text-secondary);
        }
        .container {
            max-width: var(--container-max);
            padding-left: 1.5rem;
            padding-right: 1.5rem;
            margin-left: auto;
            margin-right: auto;
        }
        .section-padding {
            padding: 5rem 0;
        }
        .section-padding-sm {
            padding: 3rem 0;
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            position: relative;
            display: inline-block;
            margin-bottom: 0.75rem;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin: 0.75rem auto 0;
        }
        .section-title p {
            max-width: 640px;
            margin: 0.75rem auto 0;
            color: var(--text-secondary);
            font-size: 1.1rem;
        }
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-alt {
            background: var(--bg-section-alt);
        }
        .bg-dark-section {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .bg-dark-section h2,
        .bg-dark-section h3,
        .bg-dark-section h4,
        .bg-dark-section p {
            color: var(--text-white);
        }
        .bg-dark-section .section-title p {
            color: rgba(255, 255, 255, 0.75);
        }
        .bg-dark-section .section-title h2::after {
            background: linear-gradient(90deg, var(--secondary-light), var(--accent));
        }

        /* ===== 按钮 ===== */
        .btn {
            padding: 0.625rem 1.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            border: 2px solid transparent;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            cursor: pointer;
            line-height: 1.4;
        }
        .btn:focus-visible {
            outline: 3px solid var(--secondary);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--primary-light);
            border-color: var(--primary-light);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: var(--shadow-sm);
        }
        .btn-secondary {
            background: var(--secondary);
            color: var(--text-white);
            border-color: var(--secondary);
        }
        .btn-secondary:hover {
            background: var(--secondary-light);
            border-color: var(--secondary-light);
            color: var(--text-white);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-outline:active {
            transform: translateY(0);
        }
        .btn-light {
            background: rgba(255, 255, 255, 0.15);
            color: var(--text-white);
            border-color: rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(4px);
        }
        .btn-light:hover {
            background: rgba(255, 255, 255, 0.25);
            color: var(--text-white);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 0.375rem 1rem;
            font-size: 0.85rem;
        }
        .btn-lg {
            padding: 0.875rem 2.25rem;
            font-size: 1.1rem;
        }

        /* ===== 导航 ===== */
        .site-header {
            background: var(--bg-dark);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            position: sticky;
            top: 0;
            z-index: 1050;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .navbar-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.6rem 0;
            min-height: var(--header-top-height);
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-white);
            text-decoration: none;
            letter-spacing: -0.02em;
        }
        .navbar-brand:hover {
            color: var(--secondary-light);
        }
        .navbar-brand .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            color: #fff;
            font-size: 1.2rem;
            box-shadow: 0 4px 12px rgba(255, 111, 0, 0.3);
        }
        .navbar-top-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .search-toggle {
            background: rgba(255, 255, 255, 0.1);
            border: none;
            color: var(--text-white);
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            cursor: pointer;
        }
        .search-toggle:hover {
            background: rgba(255, 255, 255, 0.2);
            color: var(--secondary-light);
        }
        .navbar-toggler {
            background: rgba(255, 255, 255, 0.1);
            border: none;
            color: var(--text-white);
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .navbar-toggler:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .navbar-channel {
            display: flex;
            gap: 0.25rem;
            padding: 0.5rem 0 0.75rem;
            flex-wrap: nowrap;
            overflow-x: auto;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: none;
        }
        .navbar-channel::-webkit-scrollbar {
            display: none;
        }
        .channel-tab {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1.25rem;
            border-radius: 100px;
            font-size: 0.9rem;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            white-space: nowrap;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        .channel-tab:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.1);
        }
        .channel-tab.active {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.2);
            font-weight: 600;
        }
        .channel-tab i {
            font-size: 0.85rem;
            opacity: 0.8;
        }
        .channel-tab.active i {
            opacity: 1;
        }
        @media (max-width: 991.98px) {
            .navbar-channel {
                flex-direction: column;
                padding: 0.5rem 0 1rem;
                overflow-x: visible;
                gap: 0.125rem;
            }
            .channel-tab {
                border-radius: var(--radius-sm);
                padding: 0.625rem 1rem;
                white-space: normal;
            }
            .navbar-top-actions .btn-primary {
                display: none !important;
            }
        }
        @media (max-width: 575.98px) {
            .navbar-brand {
                font-size: 1.2rem;
            }
            .navbar-brand .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
        }

        /* ===== 横幅 ===== */
        .category-banner {
            position: relative;
            padding: 4rem 0 5rem;
            background: var(--bg-dark);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.3;
            z-index: 0;
        }
        .category-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 14, 39, 0.92) 40%, rgba(26, 35, 126, 0.7) 80%);
            z-index: 1;
        }
        .category-banner .container {
            position: relative;
            z-index: 2;
        }
        .category-banner .breadcrumb {
            background: none;
            padding: 0;
            margin-bottom: 1.25rem;
            display: flex;
            gap: 0.5rem;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
        }
        .category-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.7);
        }
        .category-banner .breadcrumb a:hover {
            color: var(--secondary-light);
        }
        .category-banner .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.4);
        }
        .category-banner h1 {
            color: var(--text-white);
            font-size: 2.75rem;
            margin-bottom: 0.75rem;
            font-weight: 800;
        }
        .category-banner p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.2rem;
            max-width: 660px;
            margin-bottom: 1.5rem;
        }
        .category-banner .banner-stats {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            margin-top: 1.5rem;
        }
        .category-banner .banner-stats .stat-item {
            color: rgba(255, 255, 255, 0.85);
        }
        .category-banner .banner-stats .stat-item .num {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--secondary-light);
            display: block;
            line-height: 1.2;
        }
        .category-banner .banner-stats .stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
        }
        @media (max-width: 767.98px) {
            .category-banner {
                padding: 2.5rem 0 3rem;
                min-height: 240px;
            }
            .category-banner h1 {
                font-size: 1.75rem;
            }
            .category-banner p {
                font-size: 1rem;
            }
            .category-banner .banner-stats {
                gap: 1.25rem;
            }
            .category-banner .banner-stats .stat-item .num {
                font-size: 1.35rem;
            }
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border: none;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .card-img-top {
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            object-fit: cover;
            height: 200px;
            width: 100%;
        }
        .card-body {
            padding: 1.5rem;
        }
        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .card-text {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin-bottom: 0.75rem;
        }
        .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-top: 0.75rem;
        }
        .badge-tag {
            display: inline-block;
            padding: 0.2rem 0.75rem;
            border-radius: 100px;
            font-size: 0.75rem;
            font-weight: 500;
            background: var(--bg-light);
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .badge-tag:hover {
            background: var(--primary);
            color: var(--text-white);
            border-color: var(--primary);
        }
        .badge-category {
            display: inline-block;
            padding: 0.25rem 0.85rem;
            border-radius: 100px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(26, 35, 126, 0.1);
            color: var(--primary);
            border: none;
        }
        .badge-hot {
            background: rgba(255, 111, 0, 0.15);
            color: var(--secondary);
        }

        /* ===== 资源类型网格 ===== */
        .resource-type-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            border: 1px solid var(--border-light);
        }
        .resource-type-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        .resource-type-card .icon-wrap {
            width: 70px;
            height: 70px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.25rem;
            font-size: 1.75rem;
            color: var(--text-white);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            box-shadow: 0 6px 20px rgba(26, 35, 126, 0.2);
        }
        .resource-type-card .icon-wrap.orange {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
            box-shadow: 0 6px 20px rgba(255, 111, 0, 0.25);
        }
        .resource-type-card .icon-wrap.teal {
            background: linear-gradient(135deg, var(--accent), #26c6da);
            box-shadow: 0 6px 20px rgba(0, 188, 212, 0.25);
        }
        .resource-type-card .icon-wrap.purple {
            background: linear-gradient(135deg, #7c4dff, #b388ff);
            box-shadow: 0 6px 20px rgba(124, 77, 255, 0.25);
        }
        .resource-type-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .resource-type-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== 精选作品网格 ===== */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
        }
        .gallery-grid .gallery-item {
            position: relative;
            border-radius: var(--radius-sm);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            cursor: pointer;
        }
        .gallery-grid .gallery-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .gallery-grid .gallery-item:hover img {
            transform: scale(1.08);
        }
        .gallery-grid .gallery-item .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(10, 14, 39, 0.7) 0%, transparent 60%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 1rem;
            opacity: 0;
            transition: var(--transition);
        }
        .gallery-grid .gallery-item:hover .overlay {
            opacity: 1;
        }
        .gallery-grid .gallery-item .overlay span {
            color: var(--text-white);
            font-weight: 600;
            font-size: 0.9rem;
        }
        .gallery-grid .gallery-item .overlay small {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.75rem;
        }
        .gallery-grid .gallery-item:first-child {
            grid-column: span 2;
            grid-row: span 2;
            aspect-ratio: auto;
        }
        @media (max-width: 991.98px) {
            .gallery-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .gallery-grid .gallery-item:first-child {
                grid-column: span 2;
                grid-row: span 1;
            }
        }
        @media (max-width: 767.98px) {
            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .gallery-grid .gallery-item:first-child {
                grid-column: span 2;
            }
        }
        @media (max-width: 575.98px) {
            .gallery-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.5rem;
            }
        }

        /* ===== 流程步骤 ===== */
        .step-card {
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            padding: 1.5rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .step-card .step-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            color: var(--text-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .step-card .step-num.orange {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
        }
        .step-card .step-num.teal {
            background: linear-gradient(135deg, var(--accent), #26c6da);
        }
        .step-card .step-content h5 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.25rem;
        }
        .step-card .step-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 1.25rem 1.5rem;
            box-shadow: var(--shadow-sm);
            margin-bottom: 0.75rem;
            border-left: 4px solid var(--primary-light);
            transition: var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-md);
        }
        .faq-item .faq-q {
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 0.4rem;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .faq-item .faq-q i {
            color: var(--secondary);
            font-size: 0.9rem;
        }
        .faq-item .faq-a {
            color: var(--text-secondary);
            font-size: 0.95rem;
            padding-left: 1.75rem;
            margin-bottom: 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark);
            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: 0.15;
            z-index: 0;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 14, 39, 0.92), rgba(26, 35, 126, 0.75));
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            color: var(--text-white);
            font-size: 2rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.1rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-form {
            display: flex;
            gap: 0.75rem;
            max-width: 500px;
            margin: 1.5rem auto 0;
            flex-wrap: wrap;
            justify-content: center;
        }
        .cta-form input[type="email"] {
            flex: 1;
            min-width: 200px;
            padding: 0.75rem 1.25rem;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.1);
            color: var(--text-white);
            font-size: 0.95rem;
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .cta-form input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.5);
        }
        .cta-form input[type="email"]:focus {
            border-color: var(--secondary-light);
            background: rgba(255, 255, 255, 0.15);
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 111, 0, 0.2);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 3.5rem 0 0;
            color: rgba(255, 255, 255, 0.7);
        }
        .site-footer h5 {
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            transition: var(--transition);
        }
        .site-footer a:hover {
            color: var(--secondary-light);
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.625rem;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 0.75rem;
        }
        .footer-brand .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary-light), var(--secondary));
            color: #fff;
            font-size: 1rem;
        }
        .footer-desc {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
            margin-bottom: 1.25rem;
        }
        .footer-social {
            display: flex;
            gap: 0.75rem;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.6);
            font-size: 1.15rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: var(--text-white);
            transform: translateY(-2px);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }
        .footer-links a i {
            font-size: 0.75rem;
            opacity: 0.6;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 1.5rem 0;
            margin-top: 2.5rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.75rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--secondary-light);
        }
        @media (max-width: 767.98px) {
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 响应式通用 ===== */
        @media (max-width: 991.98px) {
            .section-padding {
                padding: 3.5rem 0;
            }
            .section-padding-sm {
                padding: 2rem 0;
            }
            .section-title {
                margin-bottom: 2rem;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 767.98px) {
            .section-padding {
                padding: 2.5rem 0;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.35rem;
            }
            .section-title p {
                font-size: 0.95rem;
            }
            .resource-type-card {
                padding: 1.5rem 1rem;
            }
            .resource-type-card .icon-wrap {
                width: 56px;
                height: 56px;
                font-size: 1.35rem;
            }
            .step-card {
                flex-direction: column;
                align-items: center;
                text-align: center;
                padding: 1.25rem;
            }
            .step-card .step-num {
                margin-bottom: 0.5rem;
            }
            .faq-item {
                padding: 1rem 1.25rem;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-form input[type="email"] {
                min-width: 160px;
            }
        }
        @media (max-width: 575.98px) {
            .category-banner h1 {
                font-size: 1.4rem;
            }
            .category-banner .banner-stats .stat-item .num {
                font-size: 1.1rem;
            }
            .gallery-grid .gallery-item .overlay {
                opacity: 1;
                padding: 0.5rem;
            }
            .gallery-grid .gallery-item .overlay span {
                font-size: 0.75rem;
            }
            .gallery-grid .gallery-item .overlay small {
                font-size: 0.65rem;
            }
        }

        /* ===== 辅助 ===== */
        .mt-1 {
            margin-top: 0.5rem;
        }
        .mt-2 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 0.5rem;
        }
        .mb-2 {
            margin-bottom: 1rem;
        }
        .gap-1 {
            gap: 0.5rem;
        }
        .gap-2 {
            gap: 1rem;
        }
        .text-center {
            text-align: center;
        }
        .fw-700 {
            font-weight: 700;
        }
        .d-flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .align-items-center {
            align-items: center;
        }
        .justify-content-center {
            justify-content: center;
        }
        .rounded-img {
            border-radius: var(--radius-sm);
        }
        .shadow-img {
            box-shadow: var(--shadow-md);
        }