/* roulang page: index */
:root {
            --primary: #0a1628;
            --primary-light: #132244;
            --secondary: #c9a84c;
            --secondary-light: #e0c678;
            --secondary-dark: #a88a2e;
            --accent: #f5f0e8;
            --bg-body: #f8f6f2;
            --bg-card: #ffffff;
            --bg-dark: #0d1b2a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-light: #8a8a9a;
            --text-white: #f0ebe3;
            --border-color: #e4ddd4;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 8px 30px rgba(10, 22, 40, 0.08);
            --shadow-lg: 0 20px 60px rgba(10, 22, 40, 0.12);
            --shadow-gold: 0 8px 30px rgba(201, 168, 76, 0.25);
            --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            padding-bottom: 70px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-dark);
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
            margin: 0 auto;
        }

        /* ===== 顶部导航 (桌面) ===== */
        .site-header {
            background: var(--primary);
            border-bottom: 2px solid var(--secondary);
            padding: 0 0;
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: 0 4px 20px rgba(10, 22, 40, 0.3);
        }

        .site-header .navbar {
            padding-top: 0;
            padding-bottom: 0;
        }

        .site-header .navbar-brand {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--secondary) !important;
            letter-spacing: 1px;
            padding: 14px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-header .navbar-brand i {
            font-size: 1.8rem;
            color: var(--secondary-light);
        }
        .site-header .navbar-brand:hover {
            color: var(--secondary-light) !important;
        }

        .site-header .nav-link {
            color: var(--text-white) !important;
            font-weight: 500;
            padding: 18px 20px !important;
            font-size: 0.95rem;
            letter-spacing: 0.3px;
            position: relative;
            transition: var(--transition);
        }
        .site-header .nav-link::after {
            content: '';
            position: absolute;
            bottom: 6px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .site-header .nav-link:hover::after,
        .site-header .nav-link.active::after {
            transform: translateX(-50%) scaleX(1);
        }
        .site-header .nav-link:hover,
        .site-header .nav-link.active {
            color: var(--secondary-light) !important;
        }
        .site-header .nav-link.active {
            color: var(--secondary) !important;
        }

        .navbar-toggler {
            border: none;
            padding: 10px 12px;
            background: transparent;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .navbar-toggler .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%23c9a84c' stroke-width='2' stroke-linecap='round' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        /* ===== 移动端底部 Tab ===== */
        .bottom-tab-nav {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1060;
            background: var(--primary);
            border-top: 2px solid var(--secondary);
            display: flex;
            align-items: center;
            justify-content: space-around;
            padding: 6px 0 env(safe-area-inset-bottom, 6px) 0;
            box-shadow: 0 -4px 20px rgba(10, 22, 40, 0.25);
        }
        .bottom-tab-nav .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 6px 12px;
            color: var(--text-white);
            font-size: 0.7rem;
            font-weight: 500;
            transition: var(--transition);
            border-radius: var(--radius-sm);
            min-width: 60px;
            opacity: 0.7;
            text-decoration: none;
        }
        .bottom-tab-nav .tab-item i {
            font-size: 1.3rem;
            margin-bottom: 2px;
            transition: var(--transition);
        }
        .bottom-tab-nav .tab-item span {
            font-size: 0.65rem;
            letter-spacing: 0.3px;
        }
        .bottom-tab-nav .tab-item:hover,
        .bottom-tab-nav .tab-item.active {
            opacity: 1;
            color: var(--secondary);
        }
        .bottom-tab-nav .tab-item.active i {
            color: var(--secondary);
            text-shadow: 0 0 12px rgba(201, 168, 76, 0.4);
        }

        @media (min-width: 992px) {
            body {
                padding-bottom: 0 !important;
            }
            .bottom-tab-nav {
                display: none !important;
            }
        }
        @media (max-width: 991.98px) {
            .site-header .navbar-collapse {
                background: var(--primary-light);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 10px 20px;
            }
            .site-header .nav-link {
                padding: 12px 16px !important;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .site-header .nav-link::after {
                display: none;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            background: var(--bg-dark);
            min-height: 85vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.4;
            transform: scale(1.05);
            animation: heroZoom 20s ease-in-out infinite alternate;
        }
        @keyframes heroZoom {
            0% { transform: scale(1.05); }
            100% { transform: scale(1.15); }
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 22, 40, 0.88) 0%, rgba(13, 27, 42, 0.72) 50%, rgba(10, 22, 40, 0.88) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0 60px;
            text-align: center;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(201, 168, 76, 0.15);
            border: 1px solid rgba(201, 168, 76, 0.3);
            color: var(--secondary-light);
            padding: 6px 24px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 24px;
            backdrop-filter: blur(8px);
        }
        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-title span {
            color: var(--secondary);
            text-shadow: 0 0 40px rgba(201, 168, 76, 0.2);
        }
        .hero-desc {
            font-size: 1.15rem;
            color: rgba(240, 235, 227, 0.8);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn-gold {
            background: var(--secondary);
            color: var(--primary) !important;
            border: none;
            padding: 14px 40px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: var(--shadow-gold);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-gold:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(201, 168, 76, 0.35);
        }
        .btn-outline-gold {
            background: transparent;
            color: var(--secondary) !important;
            border: 2px solid var(--secondary);
            padding: 12px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .btn-outline-gold:hover {
            background: var(--secondary);
            color: var(--primary) !important;
            transform: translateY(-3px);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin-top: 50px;
            padding-top: 40px;
            border-top: 1px solid rgba(201, 168, 76, 0.15);
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-item .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--secondary);
            display: block;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(240, 235, 227, 0.6);
            letter-spacing: 0.5px;
        }

        @media (max-width: 767.98px) {
            .hero-section {
                min-height: 70vh;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat-item .num {
                font-size: 1.6rem;
            }
        }

        /* ===== 通用板块 ===== */
        .section-padding {
            padding: 80px 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 48px;
            text-align: center;
        }
        .section-heading {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-heading .section-title {
            margin-bottom: 10px;
        }
        .section-heading .section-subtitle {
            margin-bottom: 0;
        }

        .bg-light-alt {
            background: var(--accent);
        }
        .bg-dark-alt {
            background: var(--bg-dark);
        }
        .bg-dark-alt .section-title {
            color: var(--text-white);
        }
        .bg-dark-alt .section-subtitle {
            color: rgba(240, 235, 227, 0.7);
        }

        /* ===== 卡片 ===== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
        }
        .card-custom .card-img-top {
            aspect-ratio: 16 / 10;
            object-fit: cover;
            width: 100%;
        }
        .card-custom .card-body {
            padding: 24px 20px 20px;
        }
        .card-custom .card-title {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .card-custom .card-text {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-custom .card-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .card-custom .card-meta i {
            margin-right: 4px;
        }
        .card-custom .badge-tag {
            background: var(--secondary);
            color: var(--primary);
            font-size: 0.7rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 50px;
            letter-spacing: 0.3px;
        }

        /* ===== 分类入口卡片 ===== */
        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
            cursor: default;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
        }
        .category-card .icon-wrap {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
            color: var(--secondary);
            transition: var(--transition);
        }
        .category-card:hover .icon-wrap {
            background: var(--secondary);
            color: var(--primary);
            transform: scale(1.05);
        }
        .category-card h5 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .category-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== 资讯列表 ===== */
        .news-item {
            display: flex;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .news-item:last-child {
            border-bottom: none;
        }
        .news-item:hover {
            padding-left: 8px;
        }
        .news-item .news-thumb {
            width: 120px;
            min-height: 80px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--border-color);
        }
        .news-item .news-content {
            flex: 1;
        }
        .news-item .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
            display: block;
            transition: var(--transition);
        }
        .news-item .news-title:hover {
            color: var(--secondary-dark);
        }
        .news-item .news-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 6px;
        }
        .news-item .news-meta {
            font-size: 0.78rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .news-item .news-meta i {
            margin-right: 4px;
        }

        @media (max-width: 575.98px) {
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-item .news-thumb {
                width: 100%;
                min-height: 140px;
            }
        }

        /* ===== 数据/流程 ===== */
        .step-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .step-card .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--secondary);
            color: var(--primary);
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
        }
        .step-card h5 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .data-grid .data-item {
            background: rgba(201, 168, 76, 0.08);
            border: 1px solid rgba(201, 168, 76, 0.15);
            border-radius: var(--radius-md);
            padding: 28px 16px;
            text-align: center;
            transition: var(--transition);
        }
        .data-grid .data-item:hover {
            background: rgba(201, 168, 76, 0.14);
            transform: translateY(-3px);
        }
        .data-grid .data-item .num {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--secondary);
            display: block;
            line-height: 1.2;
        }
        .data-grid .data-item .label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin-top: 4px;
        }

        @media (max-width: 767.98px) {
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 575.98px) {
            .data-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .data-grid .data-item .num {
                font-size: 1.8rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            background: var(--bg-card);
            overflow: hidden;
        }
        .faq-accordion .accordion-button {
            font-weight: 600;
            color: var(--primary);
            background: var(--bg-card);
            padding: 18px 24px;
            font-size: 1rem;
            box-shadow: none !important;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--accent);
            color: var(--primary);
        }
        .faq-accordion .accordion-button::after {
            background-size: 1rem;
            transition: var(--transition);
        }
        .faq-accordion .accordion-body {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: var(--text-white);
            font-size: 2rem;
            font-weight: 700;
        }
        .cta-section p {
            color: rgba(240, 235, 227, 0.75);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 28px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary);
            border-top: 2px solid var(--secondary);
            padding: 48px 0 24px;
            color: rgba(240, 235, 227, 0.7);
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 8px;
            display: block;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            max-width: 320px;
            line-height: 1.7;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 8px;
        }
        .site-footer .footer-links a {
            color: rgba(240, 235, 227, 0.7);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .site-footer .footer-title {
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            margin-bottom: 16px;
        }
        .site-footer .footer-divider {
            border-color: rgba(201, 168, 76, 0.15);
            margin: 32px 0 20px;
        }
        .site-footer .copyright {
            font-size: 0.85rem;
            color: rgba(240, 235, 227, 0.5);
            text-align: center;
        }
        .site-footer .copyright a {
            color: var(--secondary);
        }

        /* ===== 空状态 ===== */
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-light);
        }
        .empty-state i {
            font-size: 3rem;
            margin-bottom: 16px;
            opacity: 0.5;
        }
        .empty-state p {
            font-size: 1rem;
        }

        /* ===== 通用辅助 ===== */
        .gap-16 {
            gap: 16px;
        }
        .text-gold {
            color: var(--secondary);
        }
        .bg-gold-soft {
            background: rgba(201, 168, 76, 0.06);
        }

        @media (max-width: 767.98px) {
            .section-padding {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
            .hero-title {
                font-size: 1.9rem;
            }
            .card-custom .card-body {
                padding: 18px 16px;
            }
        }

        @media (min-width: 768px) and (max-width: 991.98px) {
            .section-padding {
                padding: 64px 0;
            }
            .hero-title {
                font-size: 2.6rem;
            }
        }

        /* ===== 滚动条美化 ===== */
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-body);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--secondary);
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--secondary-dark);
        }

        /* Bootstrap 覆盖 */
        .btn {
            border-radius: 50px;
            font-weight: 600;
            padding: 12px 32px;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--secondary);
            border-color: var(--secondary);
            color: var(--primary) !important;
        }
        .btn-primary:hover {
            background: var(--secondary-light);
            border-color: var(--secondary-light);
            transform: translateY(-2px);
            box-shadow: var(--shadow-gold);
        }
        .btn-outline-primary {
            border-color: var(--secondary);
            color: var(--secondary) !important;
        }
        .btn-outline-primary:hover {
            background: var(--secondary);
            color: var(--primary) !important;
            border-color: var(--secondary);
        }
        .card {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }
        .card:hover {
            box-shadow: var(--shadow-md);
        }
        .badge {
            border-radius: 50px;
            padding: 6px 16px;
            font-weight: 500;
        }

/* roulang page: article */
:root {
            --primary: #0d6efd;
            --primary-dark: #0a58ca;
            --primary-light: #e8f0fe;
            --accent: #fd7e14;
            --accent-dark: #e96b02;
            --success: #198754;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #1a2332;
            --bg-dark2: #0f1724;
            --text-primary: #1e293b;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --text-white: #f1f5f9;
            --border-color: #e2e8f0;
            --border-light: #f1f5f9;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow: 0 4px 16px rgba(0,0,0,0.08);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-base);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-dark); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        .container { max-width: 1140px; padding: 0 20px; margin: 0 auto; }
        .container-narrow { max-width: 860px; margin: 0 auto; padding: 0 20px; }

        /* ===== Header & Nav ===== */
        .site-header {
            background: rgba(255,255,255,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1050;
            padding: 0;
            box-shadow: 0 1px 8px rgba(0,0,0,0.04);
        }
        .site-header .navbar {
            padding: 12px 0;
        }
        .navbar-brand {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary) !important;
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.01em;
        }
        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent);
        }
        .navbar-brand:hover { color: var(--primary-dark) !important; }
        .navbar-nav .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary) !important;
            padding: 8px 18px !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--primary) !important;
            background: var(--primary-light);
        }
        .navbar-nav .nav-link.active {
            color: #fff !important;
            background: var(--primary);
            box-shadow: 0 4px 12px rgba(13,110,253,0.3);
        }
        .navbar-toggler {
            border: none;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            color: var(--primary);
        }
        .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(13,110,253,0.2); }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(13,110,253,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        /* ===== Page Banner ===== */
        .page-banner {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark2) 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .page-banner .banner-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            line-height: 1.3;
            position: relative;
            z-index: 1;
        }
        .page-banner .banner-meta {
            color: rgba(255,255,255,0.7);
            font-size: 0.95rem;
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            align-items: center;
            position: relative;
            z-index: 1;
        }
        .page-banner .banner-meta i { margin-right: 6px; color: var(--accent); }
        .page-banner .banner-meta .badge-category {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        /* ===== Article Content ===== */
        .article-section {
            padding: 50px 0 60px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            padding: 40px 45px;
            border: 1px solid var(--border-color);
        }
        .article-body h1, .article-body h2, .article-body h3, .article-body h4 {
            font-weight: 700;
            color: var(--text-primary);
            margin-top: 1.8em;
            margin-bottom: 0.8em;
            line-height: 1.4;
        }
        .article-body h1 { font-size: 1.8rem; border-left: 4px solid var(--primary); padding-left: 16px; }
        .article-body h2 { font-size: 1.5rem; }
        .article-body h3 { font-size: 1.25rem; }
        .article-body p {
            margin-bottom: 1.2em;
            color: var(--text-secondary);
            font-size: 1.05rem;
        }
        .article-body ul, .article-body ol {
            margin-bottom: 1.2em;
            padding-left: 1.5em;
            color: var(--text-secondary);
        }
        .article-body li { margin-bottom: 0.4em; }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 16px 22px;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 1.5em 0;
            color: var(--text-secondary);
            font-style: normal;
        }
        .article-body blockquote p:last-child { margin-bottom: 0; }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 1.5em auto;
            box-shadow: var(--shadow);
        }
        .article-body .img-caption {
            text-align: center;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: -0.8em;
            margin-bottom: 1.5em;
        }
        .article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 2px; }
        .article-body a:hover { color: var(--primary-dark); }
        .article-body code {
            background: #f1f5f9;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--primary-dark);
        }
        .article-body pre {
            background: var(--bg-dark);
            color: #e2e8f0;
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 1.5em 0;
            font-size: 0.92rem;
            line-height: 1.6;
        }

        /* ===== Article Footer ===== */
        .article-footer {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px solid var(--border-color);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tags .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary); color: #fff; }
        .article-share {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .article-share span { font-size: 0.9rem; color: var(--text-muted); }
        .article-share .btn-share {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            border: none;
            transition: var(--transition);
            font-size: 1rem;
        }
        .article-share .btn-share:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(13,110,253,0.3); }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 50px 0 60px;
            background: var(--bg-body);
        }
        .related-section .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 32px;
            position: relative;
            display: inline-block;
        }
        .related-section .section-title::after {
            content: '';
            display: block;
            width: 50px;
            height: 4px;
            background: var(--primary);
            border-radius: 4px;
            margin-top: 8px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .related-card .card-img {
            height: 180px;
            overflow: hidden;
            background: var(--primary-light);
        }
        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .card-img img { transform: scale(1.05); }
        .related-card .card-body {
            padding: 20px 22px 24px;
        }
        .related-card .card-body .card-category {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(253,126,20,0.1);
            padding: 2px 12px;
            border-radius: 12px;
            margin-bottom: 8px;
        }
        .related-card .card-body h5 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card .card-body h5 a { color: var(--text-primary); }
        .related-card .card-body h5 a:hover { color: var(--primary); }
        .related-card .card-body .card-text {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .related-card .card-body .card-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .related-card .card-body .card-meta i { margin-right: 4px; }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }
        .not-found-box i {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .not-found-box h2 { font-size: 1.8rem; font-weight: 700; margin-bottom: 12px; }
        .not-found-box p { color: var(--text-secondary); margin-bottom: 24px; }
        .not-found-box .btn-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 30px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            border: none;
            transition: var(--transition);
        }
        .not-found-box .btn-home:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(13,110,253,0.3); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.8);
            padding: 56px 0 32px;
            border-top: 3px solid var(--primary);
        }
        .footer-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: #fff;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand i { color: var(--accent); font-size: 1.4rem; }
        .footer-desc {
            font-size: 0.92rem;
            color: rgba(255,255,255,0.6);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li { margin-bottom: 10px; }
        .footer-links a {
            color: rgba(255,255,255,0.6);
            font-size: 0.9rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-links a:hover { color: var(--accent); transform: translateX(4px); }
        .footer-links span { color: rgba(255,255,255,0.5); font-size: 0.9rem; }
        .footer-divider {
            border-color: rgba(255,255,255,0.08);
            margin: 32px 0 20px;
        }
        .copyright {
            text-align: center;
            font-size: 0.88rem;
            color: rgba(255,255,255,0.45);
        }
        .copyright a { color: rgba(255,255,255,0.6); }
        .copyright a:hover { color: var(--accent); }

        /* ===== Mobile Bottom Nav ===== */
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: rgba(255,255,255,0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-color);
            z-index: 1060;
            padding: 6px 0;
            box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
        }
        .mobile-bottom-nav .nav-item { flex: 1; text-align: center; }
        .mobile-bottom-nav .nav-link {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 4px;
            font-size: 0.65rem;
            color: var(--text-muted);
            font-weight: 500;
            transition: var(--transition);
            border-radius: var(--radius-sm);
        }
        .mobile-bottom-nav .nav-link i { font-size: 1.2rem; }
        .mobile-bottom-nav .nav-link.active { color: var(--primary); background: var(--primary-light); }
        .mobile-bottom-nav .nav-link:hover { color: var(--primary); }

        /* ===== Responsive ===== */
        @media (max-width: 991px) {
            .page-banner { padding: 40px 0 36px; }
            .page-banner .banner-title { font-size: 1.6rem; }
            .article-body { padding: 28px 24px; }
            .article-body h1 { font-size: 1.5rem; }
            .article-body p { font-size: 1rem; }
        }
        @media (max-width: 767px) {
            .site-header .navbar { padding: 10px 0; }
            .navbar-brand { font-size: 1.25rem; }
            .page-banner { padding: 32px 0 28px; }
            .page-banner .banner-title { font-size: 1.35rem; }
            .page-banner .banner-meta { font-size: 0.85rem; gap: 12px; flex-wrap: wrap; }
            .article-section { padding: 30px 0 40px; }
            .article-body { padding: 20px 16px; border-radius: var(--radius-sm); }
            .article-body h1 { font-size: 1.3rem; padding-left: 12px; }
            .article-body h2 { font-size: 1.15rem; }
            .article-body p { font-size: 0.95rem; }
            .article-footer { flex-direction: column; align-items: flex-start; }
            .related-section { padding: 30px 0 80px; }
            .related-section .section-title { font-size: 1.3rem; }
            .related-card .card-img { height: 150px; }
            .mobile-bottom-nav { display: flex; }
            .site-footer { padding: 40px 0 80px; }
            .footer-brand { font-size: 1.15rem; }
            .footer-desc { max-width: 100%; }
            .not-found-box i { font-size: 3rem; }
            .not-found-box h2 { font-size: 1.4rem; }
        }
        @media (max-width: 520px) {
            .page-banner .banner-title { font-size: 1.2rem; }
            .article-body h1 { font-size: 1.15rem; }
            .article-body { padding: 16px 12px; }
            .article-body pre { padding: 12px 16px; font-size: 0.82rem; }
            .related-card .card-img { height: 130px; }
            .related-card .card-body { padding: 14px 16px 18px; }
            .mobile-bottom-nav .nav-link { font-size: 0.6rem; }
            .mobile-bottom-nav .nav-link i { font-size: 1rem; }
        }
        @media (min-width: 768px) {
            .mobile-bottom-nav { display: none !important; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0d6e9e;
            --primary-dark: #0a5a82;
            --primary-light: #e8f4fc;
            --accent: #f5a623;
            --accent-dark: #d48f1a;
            --bg-body: #f8fafc;
            --bg-white: #ffffff;
            --text-dark: #1a2a3a;
            --text-mid: #4a5a6a;
            --text-light: #8a9aaa;
            --border-color: #e2e8f0;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(13, 110, 158, 0.06);
            --shadow-md: 0 8px 30px rgba(13, 110, 158, 0.10);
            --shadow-lg: 0 20px 60px rgba(13, 110, 158, 0.12);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            background: var(--bg-body);
            color: var(--text-dark);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            transition: var(--transition);
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible,
        a:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }
        ul,
        ol {
            padding-left: 1.25rem;
        }

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

        /* ===== 导航 ===== */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            position: sticky;
            top: 0;
            z-index: 1050;
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            background: rgba(255, 255, 255, 0.96);
        }
        .site-header .navbar {
            padding-top: 0.6rem;
            padding-bottom: 0.6rem;
        }
        .navbar-brand {
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--primary) !important;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .navbar-brand i {
            font-size: 1.6rem;
            color: var(--accent);
        }
        .navbar-brand:hover {
            color: var(--primary-dark) !important;
        }
        .navbar-nav .nav-link {
            font-weight: 500;
            color: var(--text-mid) !important;
            padding: 0.5rem 1rem !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover,
        .navbar-nav .nav-link:focus {
            color: var(--primary) !important;
            background: var(--primary-light);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary) !important;
            background: var(--primary-light);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 1rem;
            right: 1rem;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .navbar-toggler {
            border: none;
            padding: 0.4rem 0.6rem;
            border-radius: var(--radius-sm);
            color: var(--primary);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px var(--primary-light);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(13,110,158,0.8)' stroke-width='2.5' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        /* 移动端底部 Tab 导航 */
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--bg-white);
            border-top: 1px solid var(--border-color);
            z-index: 1060;
            padding: 0.4rem 0.6rem;
            box-shadow: 0 -4px 20px rgba(13, 110, 158, 0.08);
            justify-content: space-around;
            align-items: center;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            background: rgba(255, 255, 255, 0.96);
        }
        .mobile-bottom-nav .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 0.3rem 0.6rem;
            border-radius: var(--radius-sm);
            color: var(--text-light);
            font-size: 0.7rem;
            font-weight: 500;
            transition: var(--transition);
            min-width: 60px;
            text-decoration: none;
        }
        .mobile-bottom-nav .tab-item i {
            font-size: 1.25rem;
            margin-bottom: 2px;
            color: var(--text-light);
            transition: var(--transition);
        }
        .mobile-bottom-nav .tab-item.active,
        .mobile-bottom-nav .tab-item.active i {
            color: var(--primary);
        }
        .mobile-bottom-nav .tab-item.active {
            background: var(--primary-light);
        }
        .mobile-bottom-nav .tab-item:hover {
            color: var(--primary);
        }
        .mobile-bottom-nav .tab-item:hover i {
            color: var(--primary);
        }

        /* ===== Hero / Banner ===== */
        .page-banner {
            background: linear-gradient(135deg, #0a5a82 0%, #0d6e9e 50%, #1488c4 100%);
            padding: 4.5rem 0 5rem;
            position: relative;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            margin-bottom: 0.8rem;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.88);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.8;
        }
        .page-banner .breadcrumb-custom {
            display: flex;
            justify-content: center;
            gap: 0.5rem;
            margin-top: 1.2rem;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .breadcrumb-custom a {
            color: rgba(255, 255, 255, 0.85);
            border-bottom: 1px solid rgba(255, 255, 255, 0.3);
        }
        .page-banner .breadcrumb-custom a:hover {
            color: #fff;
            border-color: #fff;
        }
        .page-banner .breadcrumb-custom .sep {
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 通用板块 ===== */
        .section-block {
            padding: 4.5rem 0;
        }
        .section-block.bg-white {
            background: var(--bg-white);
        }
        .section-block.bg-light {
            background: var(--bg-body);
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-dark);
            letter-spacing: -0.3px;
            position: relative;
            display: inline-block;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 0.75rem auto 0;
        }
        .section-title p {
            color: var(--text-mid);
            font-size: 1.1rem;
            margin-top: 0.8rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 卡片 ===== */
        .guide-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            padding: 2rem 1.5rem;
            transition: var(--transition);
            border: 1px solid var(--border-color);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .guide-card .card-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 1.2rem;
            transition: var(--transition);
        }
        .guide-card:hover .card-icon {
            background: var(--primary);
            color: #fff;
        }
        .guide-card h5 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 0.6rem;
        }
        .guide-card p {
            color: var(--text-mid);
            font-size: 0.95rem;
            line-height: 1.7;
            flex: 1;
        }
        .guide-card .card-link {
            margin-top: 1rem;
            font-weight: 500;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .guide-card .card-link i {
            font-size: 0.8rem;
            transition: var(--transition);
        }
        .guide-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 步骤流程 ===== */
        .step-item {
            display: flex;
            gap: 1.5rem;
            align-items: flex-start;
            padding: 1.5rem 1.8rem;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            margin-bottom: 1.2rem;
        }
        .step-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .step-num {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .step-content h5 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 0.3rem;
        }
        .step-content p {
            color: var(--text-mid);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ===== 功能列表 ===== */
        .feature-item {
            display: flex;
            gap: 1rem;
            padding: 1.2rem 1.5rem;
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            align-items: flex-start;
        }
        .feature-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }
        .feature-item .fi-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 1.1rem;
        }
        .feature-item .fi-text h6 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 0.2rem;
            color: var(--text-dark);
        }
        .feature-item .fi-text span {
            font-size: 0.9rem;
            color: var(--text-mid);
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-color);
            margin-bottom: 0.8rem;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-size: 1rem;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            color: var(--text-light);
            transition: var(--transition);
            font-size: 0.9rem;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            color: var(--text-mid);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0a5a82 0%, #0d6e9e 50%, #1488c4 100%);
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h3 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 1.8rem;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.85rem 2.4rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            background: var(--accent);
            color: #fff;
            border: none;
            transition: var(--transition);
            box-shadow: 0 8px 30px rgba(245, 166, 35, 0.35);
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(245, 166, 35, 0.45);
            color: #fff;
        }
        .cta-section .btn-cta:active {
            transform: translateY(0);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0f1a2e;
            color: rgba(255, 255, 255, 0.75);
            padding: 3.5rem 0 2rem;
        }
        .site-footer .footer-brand {
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            display: inline-block;
            margin-bottom: 0.8rem;
        }
        .site-footer .footer-brand i {
            color: var(--accent);
        }
        .site-footer .footer-desc {
            font-size: 0.95rem;
            line-height: 1.8;
            max-width: 360px;
            color: rgba(255, 255, 255, 0.6);
        }
        .site-footer .footer-title {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 0.5rem;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.92rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .site-footer .footer-links span {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.92rem;
        }
        .footer-divider {
            border-color: rgba(255, 255, 255, 0.08);
            margin: 2rem 0 1.2rem;
        }
        .site-footer .copyright {
            text-align: center;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .copyright a {
            color: rgba(255, 255, 255, 0.65);
        }
        .site-footer .copyright a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .page-banner {
                padding: 3rem 0 3.5rem;
                min-height: 220px;
            }
            .section-title h2 {
                font-size: 1.8rem;
            }
            .section-block {
                padding: 3rem 0;
            }
            .cta-section h3 {
                font-size: 1.6rem;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .mobile-bottom-nav {
                display: flex;
            }
            body {
                padding-bottom: 64px;
            }
            .site-footer {
                padding-bottom: 3rem;
            }
        }

        @media (max-width: 767.98px) {
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
            .page-banner {
                padding: 2.2rem 0 2.8rem;
                min-height: 180px;
            }
            .section-title h2 {
                font-size: 1.5rem;
            }
            .section-title p {
                font-size: 0.95rem;
            }
            .section-block {
                padding: 2.5rem 0;
            }
            .guide-card {
                padding: 1.5rem 1.2rem;
            }
            .step-item {
                flex-direction: column;
                gap: 0.8rem;
                padding: 1.2rem 1.2rem;
            }
            .step-num {
                width: 36px;
                height: 36px;
                font-size: 0.95rem;
            }
            .cta-section {
                padding: 2.5rem 0;
            }
            .cta-section h3 {
                font-size: 1.4rem;
            }
            .cta-section .btn-cta {
                padding: 0.7rem 1.8rem;
                font-size: 0.95rem;
            }
            .feature-item {
                padding: 1rem 1.2rem;
            }
            .mobile-bottom-nav .tab-item {
                font-size: 0.65rem;
                min-width: 48px;
                padding: 0.2rem 0.4rem;
            }
            .mobile-bottom-nav .tab-item i {
                font-size: 1.1rem;
            }
            .site-footer .footer-brand {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner p {
                font-size: 0.9rem;
            }
            .page-banner {
                padding: 1.8rem 0 2.2rem;
                min-height: 150px;
            }
            .section-title h2 {
                font-size: 1.3rem;
            }
            .section-title h2::after {
                width: 40px;
                height: 3px;
            }
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .guide-card .card-icon {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: 1rem 1.2rem;
            }
            .faq-answer {
                padding: 0 1.2rem 1rem;
                font-size: 0.88rem;
            }
            .cta-section h3 {
                font-size: 1.2rem;
            }
            .mobile-bottom-nav {
                padding: 0.3rem 0.4rem;
            }
            .mobile-bottom-nav .tab-item {
                font-size: 0.6rem;
                min-width: 40px;
                padding: 0.15rem 0.3rem;
            }
            .mobile-bottom-nav .tab-item i {
                font-size: 1rem;
            }
        }