/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1864e6;
            --primary-dark: #104dbb;
            --primary-light: #5c9bff;
            --primary-soft: #edf3ff;
            --accent: #f8a60a;
            --accent-dark: #c98300;
            --dark-navy: #0b1d3a;
            --dark-soft: #12264a;
            --body-bg: #f5f8fd;
            --text: #1d2c47;
            --muted: #5e6f85;
            --border: #dfe8f3;
            --white: #ffffff;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --shadow-xs: 0 1px 4px rgba(11, 29, 58, 0.05);
            --shadow-sm: 0 2px 10px rgba(11, 29, 58, 0.06);
            --shadow-md: 0 8px 28px rgba(11, 29, 58, 0.09);
            --shadow-lg: 0 18px 48px rgba(11, 29, 58, 0.15);
            --shadow-primary: 0 8px 24px rgba(24, 100, 230, 0.3);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--body-bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

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

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

        ul,
        ol {
            list-style: none;
        }

        /* ===== 通用布局 ===== */
        .container {
            max-width: 1240px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: 80px 0;
        }

        .section-sm {
            padding: 56px 0;
        }

        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 30px;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        .section-tag i {
            font-size: 12px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--dark-navy);
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--muted);
            line-height: 1.75;
        }

        /* ===== 按钮 ===== */
        .btn {
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-size: 15px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 2px solid transparent;
            transition: var(--transition);
            letter-spacing: 0.01em;
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: var(--shadow-primary);
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(24, 100, 230, 0.4);
        }

        .btn-outline-custom {
            background: transparent;
            color: var(--dark-navy);
            border-color: rgba(11, 29, 58, 0.2);
        }

        .btn-outline-custom:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-soft);
            transform: translateY(-2px);
            box-shadow: var(--shadow-sm);
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }

        .btn-white:hover {
            background: var(--primary-soft);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
        }

        .btn-accent-custom {
            background: var(--accent);
            color: #1a1305;
            border-color: var(--accent);
            box-shadow: 0 8px 24px rgba(248, 166, 10, 0.3);
        }

        .btn-accent-custom:hover {
            background: var(--accent-dark);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* ===== 顶部信息条 ===== */
        .topbar {
            background: var(--dark-navy);
            color: rgba(255, 255, 255, 0.85);
            font-size: 13px;
            font-weight: 400;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .topbar-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .topbar-left {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .topbar-left i {
            color: var(--accent);
            font-size: 14px;
        }

        .topbar-right {
            display: flex;
            align-items: center;
            gap: 18px;
        }

        .topbar-right span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .topbar-right i {
            color: var(--accent);
            font-size: 13px;
        }

        @media (max-width: 576px) {
            .topbar-right span:last-child {
                display: none;
            }
        }

        /* ===== 主导航 ===== */
        .main-nav {
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1030;
            box-shadow: 0 4px 20px rgba(11, 29, 58, 0.04);
        }

        .main-nav .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .logo-badge {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(24, 100, 230, 0.3);
        }

        .logo-text {
            font-size: 19px;
            font-weight: 800;
            color: var(--dark-navy);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: auto;
        }

        .nav-link-custom {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            padding: 10px 16px;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .nav-link-custom:hover {
            color: var(--primary);
            background: var(--primary-soft);
        }

        .nav-link-custom.active {
            color: var(--primary);
            background: var(--primary-soft);
            font-weight: 700;
        }

        .nav-link-custom.active::after {
            content: '';
            display: block;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
            margin-top: 2px;
        }

        .nav-cta {
            margin-left: 8px;
            padding: 10px 22px;
        }

        .nav-toggle {
            display: none;
            background: var(--primary-soft);
            border: 1px solid var(--border);
            color: var(--primary);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 18px;
            cursor: pointer;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: var(--primary);
            color: #fff;
        }

        /* 移动端导航折叠面板 */
        .mobile-dropdown {
            display: none;
            background: #fff;
            border-top: 1px solid var(--border);
            box-shadow: var(--shadow-md);
        }

        .mobile-dropdown.open {
            display: block;
        }

        .mobile-dropdown .mobile-nav-links {
            padding: 16px 24px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-dropdown .nav-link-custom {
            display: block;
            padding: 12px 16px;
            border-radius: 8px;
            font-weight: 600;
        }

        @media (max-width: 992px) {
            .nav-links {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
        }

        @media (max-width: 576px) {
            .logo-text {
                font-size: 16px;
            }

            .logo-badge {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            padding: 120px 0 140px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(11, 29, 58, 0.92) 0%, rgba(11, 29, 58, 0.68) 55%, rgba(24, 100, 230, 0.35) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 6px 16px;
            border-radius: 30px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 24px;
        }

        .hero-badge i {
            color: var(--accent);
        }

        .hero-title {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: #fff;
        }

        .hero-title span {
            color: var(--accent);
        }

        .hero-subtitle {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.7;
            margin-bottom: 36px;
            max-width: 600px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            padding-top: 10px;
        }

        .hero-metric {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
        }

        .hero-metric i {
            color: var(--accent);
            font-size: 18px;
        }

        @media (max-width: 768px) {
            .hero {
                padding: 70px 0 90px;
            }

            .hero-title {
                font-size: 32px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

            .hero-metrics {
                gap: 16px;
            }
        }

        /* ===== 快速入口条 ===== */
        .quickbar {
            position: relative;
            z-index: 5;
            margin-top: -60px;
            padding-bottom: 32px;
        }

        .quickbar .container {
            position: relative;
        }

        .quickbar-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .quick-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
        }

        .quick-card:hover {
            color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .quick-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .quick-card-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--dark-navy);
            line-height: 1.3;
            margin-bottom: 2px;
        }

        .quick-card-text {
            font-size: 13px;
            color: var(--muted);
        }

        @media (max-width: 768px) {
            .quickbar-grid {
                grid-template-columns: 1fr;
            }

            .quickbar {
                margin-top: -40px;
            }
        }

        /* ===== 核心优势 ===== */
        .features-section {
            background: var(--body-bg);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: #fff;
            border-radius: var(--radius-md);
            padding: 32px 28px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(24, 100, 230, 0.2);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(-8deg) scale(1.05);
        }

        .feature-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark-navy);
            margin-bottom: 8px;
        }

        .feature-text {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.65;
        }

        @media (max-width: 992px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 平台简介 ===== */
        .about-section {
            background: #fff;
        }

        .about-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .about-content .section-title {
            text-align: left;
            margin-bottom: 16px;
        }

        .about-content .section-tag {
            margin-bottom: 12px;
        }

        .about-text {
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .about-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin: 24px 0;
        }

        .about-list-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text);
        }

        .about-list-item i {
            color: var(--primary);
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .about-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .about-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 360px;
        }

        .about-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 29, 58, 0.1), transparent);
            pointer-events: none;
        }

        @media (max-width: 992px) {
            .about-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .about-content .section-title {
                text-align: center;
            }

            .about-content .section-tag {
                display: inline-flex;
            }
        }

        /* ===== 分类入口 ===== */
        .category-section {
            background: var(--body-bg);
        }

        .category-grid {
            display: grid;
            grid-template-columns: repeat(1, 1fr);
            gap: 24px;
            max-width: 780px;
            margin: 0 auto;
        }

        .category-card {
            display: flex;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
            flex-wrap: wrap;
        }

        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }

        .category-image {
            width: 300px;
            min-height: 240px;
            background-size: cover;
            background-position: center;
            position: relative;
            flex-shrink: 0;
        }

        .category-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(11, 29, 58, 0.2), transparent);
        }

        .category-content {
            padding: 36px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .category-content h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--dark-navy);
            margin-bottom: 12px;
        }

        .category-content p {
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .category-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 20px;
        }

        .category-tags .chip {
            font-size: 13px;
            background: var(--primary-soft);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 20px;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .category-image {
                width: 100%;
                min-height: 180px;
            }

            .category-content {
                padding: 24px;
            }
        }

        /* ===== 最新资讯 ===== */
        .news-section {
            background: #fff;
        }

        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--body-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 26px;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: rgba(24, 100, 230, 0.2);
        }

        .news-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            margin-bottom: 16px;
        }

        .news-cat {
            font-size: 12px;
            font-weight: 700;
            background: var(--primary-soft);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }

        .news-date {
            font-size: 13px;
            color: var(--muted);
        }

        .news-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--dark-navy);
            line-height: 1.45;
            margin-bottom: 12px;
        }

        .news-title a:hover {
            color: var(--primary);
        }

        .news-excerpt {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 0;
            flex: 1;
        }

        .empty-news {
            text-align: center;
            font-size: 16px;
            color: var(--muted);
            background: var(--body-bg);
            border: 1px dashed var(--border);
            border-radius: var(--radius-md);
            padding: 60px 30px;
        }

        @media (max-width: 992px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            position: relative;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            color: #fff;
            padding: 80px 0;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 29, 58, 0.9) 0%, rgba(24, 100, 230, 0.8) 100%);
        }

        .stats-section .container {
            position: relative;
            z-index: 2;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            text-align: center;
            margin-bottom: 32px;
        }

        .stat-icon {
            font-size: 30px;
            color: var(--accent);
            margin-bottom: 10px;
        }

        .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .stat-number span {
            font-size: 22px;
            font-weight: 600;
            margin-left: 2px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            margin-top: 6px;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px;
            }

            .stat-number {
                font-size: 32px;
            }
        }

        /* ===== 服务流程 ===== */
        .process-section {
            background: var(--body-bg);
        }

        .process-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-item {
            text-align: center;
            position: relative;
            padding: 24px 16px;
            background: #fff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
        }

        .process-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .process-step {
            position: absolute;
            top: -14px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 3px 14px;
            border-radius: 20px;
            box-shadow: var(--shadow-sm);
            letter-spacing: 0.03em;
        }

        .process-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: var(--primary-soft);
            color: var(--primary);
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 12px auto 20px;
            transition: var(--transition);
        }

        .process-item:hover .process-icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.08);
        }

        .process-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--dark-navy);
            margin-bottom: 8px;
        }

        .process-text {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
        }

        @media (max-width: 992px) {
            .process-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 576px) {
            .process-list {
                grid-template-columns: 1fr;
            }
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
        }

        .faq-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .faq-item {
            background: var(--body-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(24, 100, 230, 0.2);
            box-shadow: var(--shadow-sm);
        }

        .faq-q {
            font-size: 15px;
            font-weight: 700;
            color: var(--dark-navy);
            display: flex;
            align-items: flex-start;
            gap: 10px;
            margin-bottom: 8px;
        }

        .faq-q .icon {
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            margin-top: 1px;
        }

        .faq-a {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            padding-left: 28px;
        }

        @media (max-width: 768px) {
            .faq-list {
                grid-template-columns: 1fr;
            }
        }

        /* ===== CTA区 ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            text-align: center;
        }

        .cta-box {
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .cta-text {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 28px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }

        @media (max-width: 576px) {
            .cta-title {
                font-size: 24px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark-navy);
            color: rgba(255, 255, 255, 0.8);
            padding-top: 56px;
        }

        .footer-content {
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-content .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            margin-top: 14px;
            color: rgba(255, 255, 255, 0.65);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 4px;
        }

        .footer-logo .logo-badge {
            width: 32px;
            height: 32px;
            font-size: 15px;
        }

        .footer-logo .logo-text {
            color: #fff;
            font-size: 18px;
        }

        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        .footer-links-wrap {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links-wrap a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .footer-links-wrap a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-links-wrap a i {
            font-size: 12px;
            color: var(--accent);
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 10px;
        }

        .footer-contact-item i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }

        @media (max-width: 992px) {
            .footer-content .container {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 576px) {
            .footer-content .container {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 焦点/可访问性 ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1200px) {
            .section-title {
                font-size: 30px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }

            .section-title {
                font-size: 26px;
            }

            .hero-title {
                font-size: 32px;
            }
        }

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

            .btn {
                width: 100%;
                justify-content: center;
            }

            .hero-actions {
                flex-direction: column;
            }

            .section-title {
                font-size: 24px;
            }

            .process-list {
                grid-template-columns: 1fr;
            }
        }

/* roulang page: article */
:root {
    --primary: #2f6bff;
    --primary-dark: #1a47c9;
    --primary-soft: #e8f0ff;
    --accent: #ffb02e;
    --accent-soft: #fff7e6;
    --dark: #0b1526;
    --dark-soft: #16233a;
    --body-bg: #f6f8fc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-sub: #5b6b84;
    --text-light: #8b9bb4;
    --border: #e5ebf5;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 8px 30px rgba(17, 38, 84, 0.08);
    --shadow-lg: 0 20px 50px rgba(17, 38, 84, 0.12);
    --transition: all 0.25s ease;
    --font-main: "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--body-bg);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

a:hover {
    color: var(--primary);
}

.container {
    max-width: 1240px;
}

/* 顶部信息条 */
.topbar {
    background: var(--dark);
    color: #94a3b8;
    font-size: 13px;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.topbar-item {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.topbar-item i {
    color: var(--accent);
    font-size: 13px;
}

.topbar-right {
    color: #cbd5e1;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* 主导航 */
.main-nav {
    background: #ffffff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 20px rgba(17, 38, 84, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 74px;
    gap: 16px;
    position: relative;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-badge {
    width: 42px;
    height: 42px;
    border-radius: 13px;
    background: linear-gradient(135deg, var(--primary), #5a8bff);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 6px 18px rgba(47, 107, 255, 0.3);
}

.logo-text {
    font-size: 19px;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0 auto;
}

.nav-link-custom {
    padding: 9px 18px;
    border-radius: 9px;
    color: var(--text-sub);
    font-weight: 500;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.nav-link-custom:hover {
    color: var(--primary);
    background: var(--primary-soft);
}

.nav-link-custom.active {
    color: var(--primary);
    background: var(--primary-soft);
    font-weight: 600;
}

.nav-cta {
    flex-shrink: 0;
    white-space: nowrap;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--dark);
    cursor: pointer;
    padding: 8px 10px;
    border-radius: 9px;
    line-height: 1;
}

.nav-toggle:hover {
    background: var(--body-bg);
    color: var(--primary);
}

/* 通用按钮 */
.btn-primary-custom {
    background: linear-gradient(135deg, var(--primary), #3d7bff);
    border-color: var(--primary);
    color: #fff !important;
    padding: 10px 22px;
    border-radius: 10px;
    font-weight: 500;
    box-shadow: 0 6px 20px rgba(47, 107, 255, 0.25);
    transition: var(--transition);
    font-size: 15px;
}

.btn-primary-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(47, 107, 255, 0.35);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    border-color: var(--primary-dark);
}

.btn-primary-custom:focus {
    box-shadow: 0 0 0 4px rgba(47, 107, 255, 0.2);
    outline: none;
}

.btn-outline-custom {
    border: 1.5px solid var(--border);
    color: var(--text-sub);
    padding: 10px 22px;
    border-radius: 10px;
    font-weight: 500;
    background: #fff;
    transition: var(--transition);
    font-size: 15px;
}

.btn-outline-custom:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-soft);
}

.btn-outline-custom:focus {
    box-shadow: 0 0 0 4px rgba(47, 107, 255, 0.12);
    outline: none;
}

.btn-light-custom {
    background: #ffffff;
    color: var(--primary) !important;
    padding: 12px 28px;
    border-radius: 10px;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
    font-size: 15px;
    border: none;
}

.btn-light-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.22);
}

.btn-outline-light-custom {
    border: 1.5px solid rgba(255, 255, 255, 0.6);
    color: #ffffff !important;
    padding: 12px 28px;
    border-radius: 10px;
    font-weight: 500;
    background: transparent;
    transition: var(--transition);
    font-size: 15px;
}

.btn-outline-light-custom:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
}

/* 徽章 */
.badge-custom {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 13px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.5;
}

.badge-custom-light {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(6px);
}

.badge-soft {
    background: var(--primary-soft);
    color: var(--primary);
}

/* 文章横幅 */
.article-banner {
    background: linear-gradient(125deg, rgba(11, 21, 38, 0.93) 30%, rgba(47, 107, 255, 0.82)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    padding: 70px 0 62px;
    color: #fff;
    position: relative;
}

.article-banner .container {
    position: relative;
    z-index: 2;
}

.breadcrumb-custom {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.72);
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.breadcrumb-custom a {
    color: rgba(255, 255, 255, 0.72);
}

.breadcrumb-custom a:hover {
    color: #fff;
}

.breadcrumb-custom i {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.45);
}

.breadcrumb-custom .current {
    color: rgba(255, 255, 255, 0.95);
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.article-banner h1 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.4;
    margin: 14px 0 16px;
    color: #ffffff;
    max-width: 860px;
}

.banner-desc {
    color: rgba(255, 255, 255, 0.85);
    font-size: 17px;
    max-width: 640px;
}

.article-meta-row {
    display: flex;
    align-items: center;
    gap: 22px;
    font-size: 14px;
    flex-wrap: wrap;
}

.article-meta-row span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.article-meta-row-light {
    color: rgba(255, 255, 255, 0.8);
    margin-top: 4px;
}

.article-meta-row-light i {
    color: var(--accent);
}

/* 主体内容 */
.article-section {
    padding: 56px 0 40px;
}

.article-main-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    padding: 36px 40px;
    margin-bottom: 28px;
    overflow: hidden;
}

.article-body {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-main);
}

.article-body p {
    margin-bottom: 1.2em;
}

.article-body h2 {
    font-size: 22px;
    font-weight: 700;
    margin: 1.6em 0 0.8em;
    color: var(--dark);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-soft);
}

.article-body h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 1.4em 0 0.6em;
    color: var(--dark);
}

.article-body ul,
.article-body ol {
    margin: 0 0 1.2em 1.4em;
    padding-left: 0.5em;
}

.article-body li {
    margin-bottom: 0.5em;
}

.article-body img {
    border-radius: 12px;
    margin: 1.2em 0;
    box-shadow: var(--shadow);
}

.article-body blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-soft);
    padding: 16px 20px;
    border-radius: 0 12px 12px 0;
    margin: 1.4em 0;
    color: var(--text-sub);
}

.article-body code {
    background: #f1f5f9;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 14px;
    color: #e11d48;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.2em 0;
    font-size: 15px;
}

.article-body table th,
.article-body table td {
    border: 1px solid var(--border);
    padding: 10px 14px;
}

.article-body table th {
    background: var(--primary-soft);
    color: var(--dark);
    font-weight: 600;
}

.article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.tags-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-sub);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.tag-item {
    background: var(--body-bg);
    border: 1px solid var(--border);
    border-radius: 30px;
    padding: 5px 14px;
    font-size: 13px;
    color: var(--text-sub);
    transition: var(--transition);
}

.tag-item:hover {
    background: var(--primary-soft);
    border-color: var(--primary);
    color: var(--primary);
}

.article-footer-btns {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    flex-wrap: wrap;
}

/* 未找到 */
.not-found-box {
    text-align: center;
    padding: 50px 20px;
}

.not-found-icon {
    width: 78px;
    height: 78px;
    margin: 0 auto 22px;
    background: var(--accent-soft);
    color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 34px;
}

.not-found-box h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.not-found-box p {
    color: var(--text-sub);
    margin-bottom: 26px;
}

/* 侧边栏 */
.article-sidebar .sidebar-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    padding: 26px;
    margin-bottom: 24px;
}

.sidebar-card h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 18px;
    padding-left: 14px;
    border-left: 3px solid var(--primary);
    line-height: 1.3;
}

.sidebar-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-list li {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.sidebar-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.sidebar-list a {
    display: block;
    transition: var(--transition);
}

.sidebar-list a:hover .sidebar-post-title {
    color: var(--primary);
}

.sidebar-post-title {
    font-size: 14.5px;
    font-weight: 500;
    color: var(--text-main);
    display: block;
    line-height: 1.55;
    margin-bottom: 4px;
    transition: var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sidebar-post-meta {
    font-size: 12px;
    color: var(--text-light);
}

.sidebar-nav-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav-card li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 0;
    color: var(--text-sub);
    font-size: 14.5px;
    border-bottom: 1px dashed var(--border);
}

.sidebar-nav-card li a:hover {
    color: var(--primary);
    padding-left: 4px;
}

.sidebar-nav-card li a i {
    color: var(--primary);
    font-size: 13px;
}

.sidebar-cta-card {
    background: linear-gradient(135deg, var(--dark), var(--dark-soft)) !important;
    border-color: var(--dark) !important;
    color: #fff;
    text-align: center;
}

.cta-card-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 14px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--accent);
}

.sidebar-cta-card h5 {
    color: #fff;
    font-weight: 600;
    margin-bottom: 10px;
}

.sidebar-cta-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin-bottom: 18px;
}

/* 相关资讯 */
.related-section {
    padding: 60px 0 30px;
    background: transparent;
}

.section-head {
    text-align: center;
    margin-bottom: 40px;
}

.section-head h2 {
    font-size: 30px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.section-head h2::after {
    content: "";
    display: block;
    width: 48px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 3px;
    margin: 12px auto 0;
}

.section-head p {
    color: var(--text-sub);
    font-size: 15px;
    margin-top: 12px;
}

.card-related {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    overflow: hidden;
    height: 100%;
    transition: var(--transition);
}

.card-related:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.related-card-img {
    height: 142px;
    overflow: hidden;
}

.related-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.card-related:hover .related-card-img img {
    transform: scale(1.06);
}

.related-card-body {
    padding: 20px;
}

.related-card-body .badge-custom {
    margin-bottom: 10px;
}

.related-card-body h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.5;
}

.related-card-body h3 a {
    color: var(--dark);
}

.related-card-body h3 a:hover {
    color: var(--primary);
}

.related-card-desc {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* FAQ */
.faq-section {
    padding: 56px 0;
}

.accordion {
    --bs-accordion-border-radius: 12px;
    --bs-accordion-border-color: var(--border);
    --bs-accordion-bg: #fff;
}

.accordion-item {
    border: 1px solid var(--border) !important;
    border-radius: 12px !important;
    margin-bottom: 14px;
    box-shadow: 0 2px 10px rgba(17, 38, 84, 0.04);
    overflow: hidden;
}

.accordion-button {
    padding: 17px 20px;
    font-size: 15.5px;
    font-weight: 600;
    color: var(--dark);
    background: #fff;
}

.accordion-button:not(.collapsed) {
    color: var(--primary);
    background: var(--primary-soft);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 4px rgba(47, 107, 255, 0.12);
    border-color: var(--primary);
}

.accordion-body {
    padding: 18px 20px;
    font-size: 15px;
    color: var(--text-sub);
    line-height: 1.8;
}

/* CTA */
.cta-section {
    padding: 30px 0 70px;
}

.cta-card {
    background: linear-gradient(120deg, var(--dark) 20%, rgba(47, 107, 255, 0.95)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    border-radius: 20px;
    padding: 48px 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.cta-info h2 {
    color: #fff;
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 10px;
}

.cta-info p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    font-size: 15px;
    max-width: 480px;
}

.cta-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

/* 页脚 */
.site-footer {
    background: var(--dark);
    color: #94a3b8;
    padding-top: 60px;
}

.footer-content {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 44px;
}

.footer-content .container {
    display: grid;
    grid-template-columns: 2fr 1fr 1.2fr;
    gap: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo .logo-badge {
    width: 38px;
    height: 38px;
    font-size: 16px;
}

.footer-logo .logo-text {
    color: #fff;
    font-size: 17px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    max-width: 360px;
    margin: 0;
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
    position: relative;
    padding-left: 14px;
}

.footer-title::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    width: 4px;
    height: 16px;
    background: var(--accent);
    border-radius: 4px;
}

.footer-links-wrap {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links-wrap a {
    color: #94a3b8;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    transition: var(--transition);
}

.footer-links-wrap a:hover {
    color: #fff;
    padding-left: 4px;
}

.footer-links-wrap a i {
    color: var(--accent);
    font-size: 13px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 14px;
    color: #94a3b8;
}

.footer-contact-item i {
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--accent);
    flex-shrink: 0;
}

.footer-bottom {
    padding: 20px 0;
    font-size: 13px;
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    color: #64748b;
}

/* 响应式 */
@media (max-width: 1024px) {
    .article-banner {
        padding: 56px 0 48px;
    }
    .article-banner h1 {
        font-size: 28px;
    }
    .article-main-card {
        padding: 30px 28px;
    }
    .cta-card {
        padding: 38px 32px;
    }
}

@media (max-width: 991.98px) {
    .nav-links {
        margin: 0;
    }
    .footer-content .container {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    .article-sidebar {
        margin-top: 20px;
    }
}

@media (max-width: 767.98px) {
    .topbar {
        font-size: 12px;
        padding: 6px 0;
    }
    .main-nav .container {
        min-height: 64px;
    }
    .logo-text {
        font-size: 15px;
    }
    .logo-badge {
        width: 34px;
        height: 34px;
        font-size: 15px;
        border-radius: 10px;
    }
    .nav-toggle {
        display: inline-flex;
        margin-left: 4px;
    }
    .nav-cta {
        padding: 7px 13px;
        font-size: 13px;
        margin-left: 2px;
    }
    .nav-cta i {
        margin-right: 4px;
    }
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 14px 20px 22px;
        display: none;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 20px 40px rgba(17, 38, 84, 0.12);
        border-radius: 0 0 14px 14px;
        z-index: 999;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-link-custom {
        padding: 12px 16px;
        font-size: 15px;
        border-radius: 10px;
    }
    .article-banner {
        padding: 42px 0 38px;
    }
    .article-banner h1 {
        font-size: 22px;
        margin: 12px 0 14px;
    }
    .article-meta-row {
        gap: 14px;
        font-size: 13px;
    }
    .article-section {
        padding: 36px 0 28px;
    }
    .article-main-card {
        padding: 22px 18px;
        border-radius: 12px;
    }
    .article-body {
        font-size: 15px;
    }
    .section-head h2 {
        font-size: 24px;
    }
    .cta-card {
        padding: 30px 22px;
        flex-direction: column;
        text-align: center;
        border-radius: 16px;
        gap: 20px;
    }
    .cta-actions {
        justify-content: center;
    }
    .footer-content {
        padding-bottom: 30px;
    }
    .footer-content .container {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
        gap: 4px;
    }
    .related-section {
        padding: 40px 0 20px;
    }
    .faq-section {
        padding: 36px 0;
    }
    .cta-section {
        padding: 20px 0 50px;
    }
}

@media (max-width: 520px) {
    .topbar .container {
        font-size: 11px;
    }
    .topbar-item i {
        font-size: 12px;
    }
    .logo-text {
        font-size: 14px;
        letter-spacing: 0;
    }
    .nav-cta {
        padding: 6px 10px;
        font-size: 12px;
    }
    .nav-cta i {
        margin-right: 2px;
        font-size: 12px;
    }
    .article-banner h1 {
        font-size: 20px;
    }
    .article-meta-row {
        font-size: 12px;
        gap: 10px;
    }
    .article-footer-btns {
        flex-direction: column;
        width: 100%;
    }
    .article-footer-btns .btn {
        width: 100%;
    }
    .footer-links-wrap,
    .footer-contact {
        text-align: left;
    }
}

/* roulang page: category1 */
:root {
  --primary: #0b2545;
  --primary-light: #13315c;
  --primary-soft: #eef2f7;
  --accent: #c9a227;
  --accent-hover: #b3911f;
  --accent-soft: #fbf3dc;
  --bg: #f5f7fa;
  --surface: #ffffff;
  --text: #1b2a41;
  --text-muted: #5f6f81;
  --border: #dfe5ec;
  --shadow-sm: 0 2px 10px rgba(11, 37, 69, .05);
  --shadow: 0 10px 35px rgba(11, 37, 69, .08);
  --shadow-lg: 0 18px 50px rgba(11, 37, 69, .12);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --transition: .25s ease;
}

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

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color .2s ease;
}

img { max-width: 100%; vertical-align: middle; }
button { font-family: inherit; }

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

/* ===== 顶部信息条 ===== */
.top-bar {
  background: var(--primary);
  color: rgba(255, 255, 255, .85);
  font-size: 13px;
  padding: 7px 0;
}
.top-bar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.top-bar-left {
  display: flex;
  align-items: center;
  gap: 6px;
}
.top-bar-left i { color: var(--accent); font-size: 14px; }
.top-bar-right {
  display: flex;
  align-items: center;
  gap: 18px;
}
.top-bar-right span { display: inline-flex; align-items: center; }
.top-bar-right i {
  color: var(--accent);
  margin-right: 5px;
}

/* ===== 主导航 ===== */
.main-nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1050;
}
.main-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 74px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  color: var(--primary);
  white-space: nowrap;
}
.logo-badge {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link-custom {
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: 8px;
  position: relative;
  transition: all .2s ease;
}
.nav-link-custom:hover {
  color: var(--primary);
  background: var(--primary-soft);
}
.nav-link-custom.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link-custom.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 3px;
  border-radius: 2px;
  background: var(--accent);
}
.nav-cta {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.nav-toggle {
  display: none;
  border: none;
  background: transparent;
  font-size: 22px;
  color: var(--primary);
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background .2s ease;
}
.nav-toggle:hover { background: var(--primary-soft); }

/* ===== 按钮 ===== */
.btn {
  border-radius: 10px;
  font-weight: 600;
  padding: 10px 22px;
  transition: all var(--transition);
  font-size: 15px;
}
.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(201, 162, 39, .3);
}
.btn-primary-custom {
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
}
.btn-primary-custom:hover {
  background: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-accent-custom {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
}
.btn-accent-custom:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(201, 162, 39, .3);
}
.btn-outline-light-custom {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, .7);
}
.btn-outline-light-custom:hover {
  background: rgba(255, 255, 255, .12);
  color: #fff;
  border-color: #fff;
}
.btn-lg {
  padding: 14px 34px;
  font-size: 16px;
  border-radius: 12px;
}

/* ===== 页面横幅 ===== */
.page-banner {
  position: relative;
  padding: 92px 0 104px;
  background: linear-gradient(135deg, rgba(11, 37, 69, .93), rgba(19, 49, 92, .82)), url("/assets/images/backpic/back-1.png") center / cover no-repeat;
  color: #fff;
}
.breadcrumb-custom {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, .75);
  margin-bottom: 18px;
  padding: 0;
  background: transparent;
}
.breadcrumb-custom a {
  color: rgba(255, 255, 255, .85);
  transition: color .2s;
}
.breadcrumb-custom a:hover { color: #fff; }
.breadcrumb-custom i {
  font-size: 11px;
  color: rgba(255, 255, 255, .5);
}
.banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .25);
  padding: 7px 16px;
  border-radius: 30px;
  font-size: 13px;
  letter-spacing: .5px;
  margin-bottom: 20px;
  backdrop-filter: blur(4px);
}
.banner-badge i { color: var(--accent); }
.page-banner h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
}
.banner-sub {
  font-size: 17px;
  color: rgba(255, 255, 255, .85);
  max-width: 680px;
  margin-bottom: 30px;
  line-height: 1.8;
}
.banner-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== 通用板块 ===== */
.section-block { padding: 88px 0; }
.section-alt { background: var(--surface); }
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 54px;
}
.section-tag {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 14px;
}
.section-head h2::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin: 14px auto 0;
}
.section-head p {
  font-size: 16px;
  color: var(--text-muted);
  margin: 0;
}

/* ===== 注册流程 ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.process-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  position: relative;
  transition: all var(--transition);
}
.process-step:hover {
  box-shadow: var(--shadow);
  transform: translateY(-6px);
  border-color: rgba(201, 162, 39, .4);
}
.step-num {
  width: 62px;
  height: 62px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(11, 37, 69, .2);
}
.process-step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--primary);
}
.process-step p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}

/* ===== 准备清单 ===== */
.checklist-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.check-item {
  display: flex;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
}
.check-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.check-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.check-item h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
}
.check-item p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}

/* ===== 服务场景卡片 ===== */
.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  transition: all var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}
.service-card-img {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.service-card:hover .service-card-img img { transform: scale(1.06); }
.service-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(11, 37, 69, .45));
}
.service-card-body { padding: 24px; }
.service-tag {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.service-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}
.service-card-body p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.7;
}

/* ===== 注册注意事项 ===== */
.notice-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 420px;
  box-shadow: var(--shadow);
}
.notice-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.notice-media-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(11, 37, 69, .28) 0%, rgba(11, 37, 69, .78) 100%);
  display: flex;
  align-items: flex-end;
  padding: 32px;
  color: #fff;
}
.notice-media-overlay h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
  color: #fff;
}
.notice-media-overlay p {
  font-size: 14px;
  color: rgba(255, 255, 255, .85);
  margin: 0;
  line-height: 1.7;
}
.notice-list-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.notice-item {
  display: flex;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  transition: all var(--transition);
}
.notice-item:hover {
  box-shadow: var(--shadow);
  transform: translateX(6px);
}
.notice-item > i {
  color: var(--accent);
  font-size: 18px;
  margin-top: 3px;
  flex-shrink: 0;
}
.notice-item h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text);
}
.notice-item p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}
.accordion {
  --bs-accordion-border-color: var(--border);
  --bs-accordion-bg: var(--surface);
  --bs-accordion-border-radius: var(--radius);
  --bs-accordion-inner-border-radius: var(--radius);
  --bs-accordion-btn-focus-box-shadow: none;
  --bs-accordion-active-bg: var(--primary-soft);
  --bs-accordion-active-color: var(--primary);
}
.accordion-item {
  border: 1px solid var(--border);
  margin-bottom: 14px;
  border-radius: var(--radius) !important;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.accordion-button {
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  padding: 18px 22px;
  background: var(--surface);
  border: none;
}
.accordion-button:not(.collapsed) {
  background: var(--primary-soft);
  color: var(--primary);
  box-shadow: none;
}
.accordion-button:focus { box-shadow: none; }
.accordion-button::after { background-size: 14px; }
.accordion-body {
  color: var(--text-muted);
  font-size: 15px;
  padding: 6px 22px 22px;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section { padding: 84px 0; }
.cta-inner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 66px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-2.png") center / cover no-repeat;
  opacity: .12;
}
.cta-inner h2 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
}
.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, .85);
  max-width: 560px;
  margin: 0 auto 32px;
  position: relative;
  line-height: 1.7;
}
.cta-inner .btn { position: relative; z-index: 2; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, .82);
  padding-top: 60px;
}
.footer-content .container {
  display: grid;
  grid-template-columns: 2fr 1fr 1.4fr;
  gap: 50px;
  padding-bottom: 46px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: #fff;
  font-size: 20px;
  font-weight: 700;
}
.footer-logo .logo-badge {
  background: rgba(255, 255, 255, .12);
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, .65);
  line-height: 1.85;
  margin: 0;
}
.footer-title {
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-links-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-links-wrap a {
  color: rgba(255, 255, 255, .68);
  font-size: 14px;
  transition: all .2s ease;
}
.footer-links-wrap a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-links-wrap i {
  font-size: 12px;
  margin-right: 6px;
}
.footer-contact-item {
  font-size: 14px;
  color: rgba(255, 255, 255, .68);
  margin-bottom: 10px;
}
.footer-contact-item i {
  width: 22px;
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, .5);
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .checklist-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-content .container { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 992px) {
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 30px rgba(11, 37, 69, .1);
    display: none;
  }
  .nav-links.nav-open { display: flex; }
  .nav-toggle { display: inline-flex; }
  .nav-cta { margin-left: auto; margin-right: 8px; }
  .nav-link-custom.active::after { display: none; }
  .nav-link-custom.active { background: var(--primary-soft); }
}

@media (max-width: 768px) {
  .section-block { padding: 64px 0; }
  .page-banner { padding: 70px 0 80px; }
  .page-banner h1 { font-size: 34px; }
  .banner-sub { font-size: 16px; }
  .checklist-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; gap: 18px; }
  .top-bar-right span:nth-child(2) { display: none; }
  .notice-media { min-height: 260px; margin-bottom: 24px; }
  .footer-content .container { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom .container { flex-direction: column; align-items: center; }
  .cta-inner { padding: 48px 26px; }
  .cta-inner h2 { font-size: 28px; }
}

@media (max-width: 576px) {
  .top-bar-right { display: none; }
  .top-bar-content { justify-content: center; }
  .main-nav .container { height: 66px; }
  .nav-links { top: 66px; }
  .nav-cta { padding: 8px 14px; font-size: 13px; }
  .nav-cta i { margin-right: 0; }
  .nav-cta span { display: none; }
  .site-logo { font-size: 17px; }
  .logo-badge { width: 34px; height: 34px; font-size: 15px; }
  .section-head h2 { font-size: 26px; }
  .banner-actions .btn { width: 100%; justify-content: center; }
  .page-banner h1 { font-size: 30px; }
  .cta-inner h2 { font-size: 25px; }
}