/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a6b;
            --primary-light: #2a5a9e;
            --primary-dark: #0f2444;
            --accent: #e8a838;
            --accent-light: #f5c46a;
            --accent-dark: #c88a1e;
            --success: #2d8f5c;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0f1a2e;
            --bg-section-alt: #f0f4f9;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #8a9aaa;
            --text-light: #f0f4f8;
            --border-color: #e2e8f0;
            --border-light: #f0f2f5;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(26, 58, 107, 0.06);
            --shadow-md: 0 8px 30px rgba(26, 58, 107, 0.10);
            --shadow-lg: 0 20px 60px rgba(26, 58, 107, 0.14);
            --shadow-glow: 0 0 40px rgba(232, 168, 56, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

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

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

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

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

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

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

        /* ===== 工具类 ===== */
        .container {
            max-width: var(--container-max);
            padding-left: 1.25rem;
            padding-right: 1.25rem;
            margin-left: auto;
            margin-right: auto;
        }

        .section-padding {
            padding-top: 5rem;
            padding-bottom: 5rem;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .bg-dark-section {
            background: var(--bg-dark);
            color: var(--text-light);
        }
        .bg-dark-section .section-title {
            color: #fff;
        }
        .bg-dark-section .section-subtitle {
            color: #b0c0d0;
        }

        .accent-glow {
            box-shadow: var(--shadow-glow);
        }

        .rounded-card {
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            background: var(--bg-card);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .rounded-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        /* ===== 浮动 Dock 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--nav-height);
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0.5rem 1rem;
            pointer-events: none;
            transition: background var(--transition);
        }
        .site-header.scrolled {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(18px) saturate(180%);
            -webkit-backdrop-filter: blur(18px) saturate(180%);
            box-shadow: 0 4px 30px rgba(26, 58, 107, 0.08);
        }

        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px) saturate(160%);
            -webkit-backdrop-filter: blur(14px) saturate(160%);
            border-radius: 60px;
            padding: 0.4rem 0.6rem 0.4rem 1.6rem;
            box-shadow: 0 4px 24px rgba(26, 58, 107, 0.10);
            border: 1px solid rgba(255, 255, 255, 0.5);
            width: 100%;
            max-width: 1100px;
            transition: box-shadow var(--transition), border-color var(--transition);
        }
        .site-header.scrolled .nav-dock {
            box-shadow: 0 6px 32px rgba(26, 58, 107, 0.12);
            border-color: rgba(255, 255, 255, 0.7);
        }

        .nav-brand {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-brand i {
            color: var(--accent);
            font-size: 1.5rem;
        }
        .nav-brand:hover {
            color: var(--primary-dark);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.2rem;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-links .nav-item {
            margin: 0;
        }
        .nav-links .nav-link {
            display: block;
            padding: 0.5rem 1rem;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 40px;
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
        }
        .nav-links .nav-link:hover,
        .nav-links .nav-link:focus-visible {
            background: rgba(26, 58, 107, 0.06);
            color: var(--primary);
        }
        .nav-links .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 12px rgba(26, 58, 107, 0.20);
        }
        .nav-links .nav-link.active:hover {
            background: var(--primary-light);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .nav-search {
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: 40px;
            padding: 0.4rem 0.8rem 0.4rem 1.2rem;
            font-size: 0.85rem;
            color: var(--text-primary);
            width: 160px;
            transition: border-color var(--transition), box-shadow var(--transition);
            outline: none;
        }
        .nav-search:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 58, 107, 0.10);
        }
        .nav-search::placeholder {
            color: var(--text-muted);
        }

        .btn-dock {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: var(--accent);
            color: #1a2a3a;
            font-weight: 600;
            font-size: 0.88rem;
            padding: 0.45rem 1.2rem;
            border-radius: 40px;
            border: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            white-space: nowrap;
        }
        .btn-dock:hover {
            background: var(--accent-light);
            color: #1a2a3a;
            transform: scale(1.02);
            box-shadow: 0 4px 16px rgba(232, 168, 56, 0.30);
        }
        .btn-dock:active {
            transform: scale(0.97);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 0.2rem 0.6rem;
            border-radius: 40px;
            cursor: pointer;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(26, 58, 107, 0.06);
        }

        /* 移动端菜单面板 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: calc(var(--nav-height) + 0.5rem);
            left: 1rem;
            right: 1rem;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
            padding: 1.2rem 1.5rem;
            z-index: 1040;
            transform: translateY(-12px);
            opacity: 0;
            visibility: hidden;
            transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
        }
        .mobile-menu.open {
            transform: translateY(0);
            opacity: 1;
            visibility: visible;
        }
        .mobile-menu .nav-link {
            display: block;
            padding: 0.7rem 0;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-light);
            transition: color var(--transition);
        }
        .mobile-menu .nav-link:last-child {
            border-bottom: none;
        }
        .mobile-menu .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .mobile-menu .nav-link:hover {
            color: var(--primary);
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            min-height: calc(100vh - var(--nav-height));
            display: flex;
            align-items: center;
            background: linear-gradient(160deg, #f0f6fe 0%, #e6eef9 50%, #dce6f4 100%);
            position: relative;
            overflow: hidden;
            padding: 2rem 0;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -30%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(232, 168, 56, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(26, 58, 107, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(26, 58, 107, 0.08);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 500;
            padding: 0.3rem 1rem 0.3rem 0.8rem;
            border-radius: 40px;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(26, 58, 107, 0.06);
        }
        .hero-badge i {
            font-size: 0.75rem;
            color: var(--accent);
        }

        .hero-title {
            font-size: 3.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.15;
            letter-spacing: -0.03em;
            margin-bottom: 1.2rem;
        }
        .hero-title .highlight {
            color: var(--accent);
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 580px;
            margin-bottom: 2rem;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            border: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 20px rgba(26, 58, 107, 0.25);
        }
        .btn-primary-custom:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(26, 58, 107, 0.30);
        }
        .btn-primary-custom:active {
            transform: scale(0.97);
        }

        .btn-outline-custom {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            border: 2px solid var(--primary);
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .btn-outline-custom:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 2.8rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(26, 58, 107, 0.08);
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-item .num {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 0.2rem;
        }

        /* ===== 核心说明 ===== */
        .core-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.8rem;
            margin-top: 3rem;
        }
        .core-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem 1.8rem;
            border: 1px solid var(--border-color);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .core-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
        }
        .core-card .icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: #fff;
            margin-bottom: 1.2rem;
            background: var(--primary);
        }
        .core-card .icon.accent-bg {
            background: var(--accent);
            color: #1a2a3a;
        }
        .core-card .icon.green-bg {
            background: var(--success);
        }
        .core-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 0.6rem;
        }
        .core-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.2rem;
            margin-top: 2.5rem;
        }
        .category-card {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem 1.2rem;
            border: 1px solid var(--border-color);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
            color: var(--text-primary);
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary-light);
            color: var(--text-primary);
        }
        .category-card .icon {
            font-size: 2.4rem;
            color: var(--primary);
            margin-bottom: 0.8rem;
            transition: transform var(--transition);
        }
        .category-card:hover .icon {
            transform: scale(1.1);
        }
        .category-card .cat-name {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 0.3rem;
        }
        .category-card .cat-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .category-card .cat-tag {
            display: inline-block;
            margin-top: 0.8rem;
            font-size: 0.75rem;
            font-weight: 500;
            background: rgba(232, 168, 56, 0.15);
            color: var(--accent-dark);
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
        }

        /* ===== 最新资讯列表 (CMS) ===== */
        .news-list {
            margin-top: 2.5rem;
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 1.2rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 1.4rem 1.8rem;
            border: 1px solid var(--border-color);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .news-item:hover {
            transform: translateX(4px);
            box-shadow: var(--shadow-sm);
        }
        .news-item .news-cat {
            flex-shrink: 0;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(232, 168, 56, 0.12);
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            margin-top: 0.2rem;
        }
        .news-item .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
            transition: color var(--transition);
            display: block;
        }
        .news-item .news-title:hover {
            color: var(--primary-light);
        }
        .news-item .news-summary {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-bottom: 0.2rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            gap: 1rem;
            align-items: center;
        }
        .news-item .news-meta i {
            margin-right: 0.3rem;
        }
        .news-empty {
            text-align: center;
            padding: 3rem 1rem;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }

        /* ===== 数据 / 流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1.8rem;
            margin-top: 3rem;
            counter-reset: step-counter;
        }
        .step-card {
            text-align: center;
            padding: 2rem 1.2rem;
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: transform var(--transition), background var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            background: rgba(255, 255, 255, 0.10);
        }
        .step-card .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: #1a2a3a;
            font-weight: 700;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
        }
        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 0.5rem;
        }
        .step-card p {
            font-size: 0.9rem;
            color: #b0c0d0;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 2.5rem auto 0;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            margin-bottom: 0.8rem;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.2rem 1.6rem;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.6rem 1.2rem;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(160deg, var(--primary-dark), var(--primary));
            color: #fff;
            text-align: center;
            padding: 4rem 0;
        }
        .cta-section .section-title {
            color: #fff;
        }
        .cta-section .section-subtitle {
            color: #c0d0e0;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1rem;
            margin-top: 2rem;
        }
        .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: var(--accent);
            color: #1a2a3a;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.85rem 2.4rem;
            border-radius: 50px;
            border: none;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            box-shadow: 0 4px 20px rgba(232, 168, 56, 0.30);
        }
        .btn-cta-primary:hover {
            background: var(--accent-light);
            color: #1a2a3a;
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(232, 168, 56, 0.40);
        }
        .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            padding: 0.85rem 2.4rem;
            border-radius: 50px;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: background var(--transition), border-color var(--transition), transform var(--transition);
        }
        .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: #b0c0d0;
            padding: 3.5rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.8rem;
        }
        .footer-brand i {
            color: var(--accent);
        }
        .footer-desc {
            font-size: 0.9rem;
            color: #8a9aaa;
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-social {
            display: flex;
            gap: 0.8rem;
            margin-top: 1.2rem;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: #b0c0d0;
            font-size: 1rem;
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: #1a2a3a;
            transform: translateY(-2px);
        }

        .footer-heading {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            color: #8a9aaa;
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.8rem;
            font-size: 0.85rem;
            color: #6a7a8a;
        }
        .footer-bottom a {
            color: #8a9aaa;
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
            }
            .nav-links {
                display: none;
            }
            .nav-search {
                display: none;
            }
            .nav-toggle {
                display: block;
            }
            .mobile-menu {
                display: block;
            }

            .hero-title {
                font-size: 2.2rem;
            }
            .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 1.5rem;
                flex-wrap: wrap;
            }
            .hero-stat-item .num {
                font-size: 1.6rem;
            }

            .section-title {
                font-size: 1.8rem;
            }
            .section-padding {
                padding-top: 3.5rem;
                padding-bottom: 3.5rem;
            }

            .core-grid {
                grid-template-columns: 1fr;
            }
            .category-grid {
                grid-template-columns: 1fr 1fr;
            }
            .news-item {
                flex-direction: column;
                padding: 1.2rem;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .btn-dock .btn-label {
                display: none;
            }
            .nav-dock {
                padding: 0.3rem 0.4rem 0.3rem 1rem;
            }
            .nav-brand {
                font-size: 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary-custom,
            .btn-outline-custom {
                justify-content: center;
            }
            .category-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-cta-primary,
            .btn-cta-outline {
                justify-content: center;
            }
            .nav-dock {
                padding: 0.3rem 0.3rem 0.3rem 0.8rem;
            }
            .nav-brand span {
                display: none;
            }
        }

        @media (min-width: 769px) {
            .mobile-menu {
                display: none !important;
            }
        }

        /* ===== 焦点轮廓 ===== */
        :focus-visible {
            outline: 3px solid rgba(232, 168, 56, 0.5);
            outline-offset: 2px;
        }

        /* ===== 滚动动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1e3a5f;
            --primary-light: #2d5a8e;
            --primary-dark: #0f2440;
            --accent: #c9a84c;
            --accent-light: #e0c87a;
            --accent-dark: #a88a30;
            --bg-body: #f8f7f4;
            --bg-card: #ffffff;
            --bg-section-alt: #f0ede8;
            --bg-dark: #0f1a2b;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a5a;
            --text-muted: #8888a0;
            --text-light: #f0f0f5;
            --text-accent: #c9a84c;
            --border-light: #e5e1db;
            --border-medium: #d0cbc4;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.07);
            --shadow-lg: 0 20px 48px rgba(0,0,0,0.10);
            --shadow-dock: 0 8px 32px rgba(0,0,0,0.10);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 80px;
            --dock-height: 68px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-family);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            padding-top: calc(var(--header-height) + 16px);
            overflow-x: hidden;
        }
        a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; color: var(--text-primary); letter-spacing: -0.02em; }

        /* ===== Container ===== */
        .container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

        /* ===== 浮动 Dock 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1060;
            height: var(--header-height);
            display: flex;
            align-items: center;
            justify-content: center;
            pointer-events: none;
            padding: 0 24px;
        }
        .nav-dock {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: 1100px;
            height: var(--dock-height);
            padding: 0 28px;
            background: rgba(255,255,255,0.88);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border-radius: var(--radius-xl);
            box-shadow: var(--shadow-dock);
            border: 1px solid rgba(255,255,255,0.40);
            pointer-events: auto;
            transition: var(--transition);
        }
        .nav-dock:hover { box-shadow: 0 12px 40px rgba(0,0,0,0.12); }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.03em;
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-brand i { font-size: 1.5rem; color: var(--accent); }
        .nav-brand:hover { color: var(--primary-dark); }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            padding: 0;
            list-style: none;
            flex-wrap: wrap;
        }
        .nav-item { margin: 0; }
        .nav-link {
            display: block;
            padding: 8px 18px;
            border-radius: 40px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-link:hover { background: rgba(30,58,95,0.08); color: var(--primary); }
        .nav-link.active { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(30,58,95,0.25); }
        .nav-link.active:hover { background: var(--primary-light); color: #fff; }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .nav-search {
            background: var(--bg-body);
            border: 1px solid var(--border-light);
            border-radius: 40px;
            padding: 8px 16px 8px 36px;
            font-size: 0.85rem;
            width: 160px;
            transition: var(--transition);
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238888a0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: 14px center;
        }
        .nav-search:focus { outline: none; border-color: var(--accent); width: 200px; box-shadow: 0 0 0 3px rgba(201,168,76,0.15); }
        .btn-dock {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            white-space: nowrap;
            box-shadow: 0 4px 12px rgba(30,58,95,0.20);
        }
        .btn-dock:hover { background: linear-gradient(135deg, var(--primary-light), var(--primary)); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(30,58,95,0.30); color: #fff; }
        .btn-dock i { font-size: 0.9rem; }
        .btn-label { display: inline; }
        .nav-toggle { display: none; background: none; border: none; font-size: 1.3rem; color: var(--text-primary); cursor: pointer; padding: 8px; border-radius: 8px; transition: var(--transition); }
        .nav-toggle:hover { background: rgba(0,0,0,0.04); }

        /* ===== 文章页主区域 ===== */
        .article-wrapper {
            padding: 40px 0 60px;
        }
        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 48px 56px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .article-card:hover { box-shadow: var(--shadow-lg); }
        .article-header {
            margin-bottom: 32px;
            padding-bottom: 24px;
            border-bottom: 2px solid var(--border-light);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 24px;
            margin-bottom: 16px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .article-meta .badge-cat {
            display: inline-block;
            padding: 4px 16px;
            border-radius: 40px;
            background: rgba(201,168,76,0.12);
            color: var(--accent-dark);
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.02em;
        }
        .article-meta i { margin-right: 6px; }
        .article-title {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--primary-dark);
            margin: 0;
            letter-spacing: -0.03em;
        }
        .article-body {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text-secondary);
        }
        .article-body p { margin-bottom: 1.5rem; }
        .article-body h2, .article-body h3 { margin-top: 2rem; margin-bottom: 1rem; color: var(--primary); }
        .article-body h2 { font-size: 1.6rem; }
        .article-body h3 { font-size: 1.3rem; }
        .article-body ul, .article-body ol { margin-bottom: 1.5rem; padding-left: 1.5rem; list-style: disc; }
        .article-body ol { list-style: decimal; }
        .article-body li { margin-bottom: 0.5rem; }
        .article-body blockquote {
            margin: 1.5rem 0;
            padding: 16px 24px;
            border-left: 4px solid var(--accent);
            background: rgba(201,168,76,0.06);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body img { margin: 1.5rem 0; border-radius: var(--radius-md); box-shadow: var(--shadow-sm); }
        .article-body a { color: var(--primary-light); border-bottom: 1px solid transparent; }
        .article-body a:hover { border-bottom-color: var(--accent); color: var(--accent-dark); }
        .article-body code {
            background: #f0ede8;
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--primary-dark);
        }
        .article-body pre {
            background: #1a1a2e;
            color: #e8e8f0;
            padding: 20px 24px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            margin: 1.5rem 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }
        .article-body pre code { background: none; color: inherit; padding: 0; }
        .article-footer-bar {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 2px solid var(--border-light);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-item {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 40px;
            background: var(--bg-section-alt);
            color: var(--text-secondary);
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .tag-item:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-section-alt);
            color: var(--text-secondary);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .article-share a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: translateY(-2px); }

        /* ===== 错误状态 ===== */
        .article-notfound {
            text-align: center;
            padding: 80px 24px;
        }
        .article-notfound i { font-size: 4rem; color: var(--text-muted); margin-bottom: 24px; }
        .article-notfound h2 { font-size: 1.8rem; margin-bottom: 12px; }
        .article-notfound p { color: var(--text-secondary); margin-bottom: 24px; }
        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 600;
            background: var(--primary);
            color: #fff;
            border: none;
            text-decoration: none;
            transition: var(--transition);
        }
        .btn-back:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(30,58,95,0.25); color: #fff; }

        /* ===== 相关推荐 ===== */
        .related-section {
            margin-top: 48px;
        }
        .related-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .related-title i { color: var(--accent); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-decoration: none;
            display: block;
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--accent); }
        .related-card .rc-cat {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-dark);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 8px;
        }
        .related-card .rc-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .related-card:hover .rc-title { color: var(--primary); }
        .related-card .rc-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-wrap {
            margin-bottom: 24px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .breadcrumb-wrap a { color: var(--text-muted); }
        .breadcrumb-wrap a:hover { color: var(--primary); }
        .breadcrumb-wrap span { margin: 0 6px; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.75);
            padding: 60px 0 32px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-brand i { color: var(--accent); }
        .footer-desc { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.55); margin-bottom: 20px; max-width: 320px; }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            color: rgba(255,255,255,0.6);
            transition: var(--transition);
            border: 1px solid rgba(255,255,255,0.06);
        }
        .footer-social a:hover { background: var(--accent); color: #1a1a2e; border-color: var(--accent); transform: translateY(-2px); }
        .footer-heading {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-links { display: flex; flex-direction: column; gap: 10px; }
        .footer-links a {
            font-size: 0.88rem;
            color: rgba(255,255,255,0.55);
            transition: var(--transition);
        }
        .footer-links a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .nav-search { width: 120px; }
            .nav-search:focus { width: 150px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .article-card { padding: 36px 32px; }
            .article-title { font-size: 1.8rem; }
        }
        @media (max-width: 768px) {
            body { padding-top: calc(var(--header-height) + 8px); }
            .site-header { padding: 0 12px; }
            .nav-dock { padding: 0 16px; gap: 8px; }
            .nav-links { display: none; position: absolute; top: calc(var(--dock-height) + 8px); left: 12px; right: 12px; background: rgba(255,255,255,0.98); backdrop-filter: blur(16px); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: 16px; flex-direction: column; border: 1px solid var(--border-light); }
            .nav-links.open { display: flex; }
            .nav-link { width: 100%; text-align: center; padding: 12px 16px; }
            .nav-toggle { display: block; }
            .nav-search { width: 100px; }
            .nav-search:focus { width: 120px; }
            .btn-label { display: none; }
            .btn-dock { padding: 8px 14px; }
            .article-wrapper { padding: 24px 0 40px; }
            .article-card { padding: 24px 20px; border-radius: var(--radius-md); }
            .article-title { font-size: 1.5rem; }
            .article-meta { gap: 8px 16px; font-size: 0.82rem; }
            .article-body { font-size: 0.98rem; }
            .article-footer-bar { flex-direction: column; align-items: flex-start; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .nav-dock { gap: 4px; padding: 0 12px; }
            .nav-brand span { display: none; }
            .nav-brand i { font-size: 1.3rem; }
            .nav-search { width: 80px; font-size: 0.78rem; padding: 6px 12px 6px 32px; background-size: 12px; }
            .nav-search:focus { width: 100px; }
            .btn-dock { padding: 6px 12px; font-size: 0.8rem; }
            .article-card { padding: 16px 14px; }
            .article-title { font-size: 1.25rem; }
            .article-meta { flex-direction: column; align-items: flex-start; gap: 6px; }
            .article-body { font-size: 0.92rem; }
            .related-title { font-size: 1.1rem; }
            .breadcrumb-wrap { font-size: 0.78rem; }
        }

/* roulang page: category1 */
/* ========== :root 设计变量 ========== */
        :root {
            --primary: #1a6b5e;
            --primary-light: #239b8a;
            --primary-dark: #0f4d44;
            --primary-bg: #f0f7f5;
            --accent: #f5a623;
            --accent-light: #ffc44d;
            --accent-dark: #d48a1a;
            --bg-white: #ffffff;
            --bg-light: #f8faf9;
            --bg-dark: #0f2b26;
            --text-primary: #1a2e2a;
            --text-secondary: #4d6b64;
            --text-muted: #8aa39c;
            --text-white: #f0faf7;
            --border-light: #e2ede9;
            --border-medium: #c4d9d2;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(26, 107, 94, 0.06);
            --shadow-md: 0 6px 24px rgba(26, 107, 94, 0.10);
            --shadow-lg: 0 16px 48px rgba(26, 107, 94, 0.14);
            --shadow-xl: 0 24px 64px rgba(26, 107, 94, 0.18);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ========== Reset / Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.65;
            color: var(--text-primary);
            background: var(--bg-white);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--nav-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-primary);
        }
        p {
            margin-bottom: 0;
            color: var(--text-secondary);
        }
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }
        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ========== Nav Dock ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--nav-height);
            background: transparent;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 0 24px;
            pointer-events: none;
        }
        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px) saturate(1.4);
            -webkit-backdrop-filter: blur(18px) saturate(1.4);
            border: 1px solid var(--border-light);
            border-radius: 60px;
            padding: 10px 20px 10px 24px;
            max-width: 1140px;
            width: 100%;
            box-shadow: 0 4px 24px rgba(26, 107, 94, 0.08);
            transition: box-shadow var(--transition), background var(--transition);
        }
        .nav-dock:hover {
            box-shadow: 0 8px 36px rgba(26, 107, 94, 0.12);
            background: rgba(255, 255, 255, 0.95);
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--primary-dark);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-brand i {
            font-size: 1.6rem;
            color: var(--primary);
        }
        .nav-brand span {
            letter-spacing: -0.01em;
        }
        .nav-brand:hover {
            color: var(--primary);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .nav-link {
            display: block;
            padding: 8px 18px;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.92rem;
            color: var(--text-secondary);
            transition: background var(--transition), color var(--transition);
            text-decoration: none;
            letter-spacing: 0.01em;
        }
        .nav-link:hover {
            background: var(--primary-bg);
            color: var(--primary-dark);
        }
        .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 12px rgba(26, 107, 94, 0.25);
        }
        .nav-link.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-search {
            border: 1px solid var(--border-light);
            border-radius: 40px;
            padding: 8px 16px;
            font-size: 0.85rem;
            width: 140px;
            background: var(--bg-light);
            transition: border-color var(--transition), box-shadow var(--transition);
            outline: none;
        }
        .nav-search:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 107, 94, 0.12);
        }
        .nav-search::placeholder {
            color: var(--text-muted);
        }
        .btn-dock {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 8px 20px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            text-decoration: none;
        }
        .btn-dock i {
            font-size: 0.95rem;
        }
        .btn-dock:hover {
            background: var(--primary-dark);
            color: #fff;
            box-shadow: 0 4px 16px rgba(26, 107, 94, 0.3);
            transform: translateY(-1px);
        }
        .btn-dock:active {
            transform: scale(0.97);
        }
        .btn-label {
            display: inline;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-light);
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: calc(var(--nav-height) - 8px);
                left: 16px;
                right: 16px;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(18px);
                border-radius: var(--radius-md);
                flex-direction: column;
                padding: 12px 8px;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--border-light);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 20px;
                border-radius: var(--radius-sm);
                width: 100%;
            }
            .nav-toggle {
                display: block;
            }
            .nav-search {
                width: 100px;
            }
            .btn-label {
                display: none;
            }
            .btn-doc {
                padding: 8px 14px;
            }
        }
        @media (max-width: 480px) {
            .nav-dock {
                padding: 8px 14px;
                border-radius: 40px;
            }
            .nav-brand span {
                font-size: 1rem;
            }
            .nav-search {
                width: 80px;
                font-size: 0.8rem;
                padding: 6px 12px;
            }
            .btn-dock {
                padding: 6px 14px;
                font-size: 0.82rem;
            }
        }

        /* ========== Page Hero (分类页) ========== */
        .page-hero {
            background: linear-gradient(145deg, #eaf5f1 0%, #d4e8e2 100%);
            padding: 80px 0 64px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 240px;
            background: radial-gradient(ellipse at center, rgba(26, 107, 94, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .page-hero h1 i {
            color: var(--accent);
            margin-right: 12px;
        }
        .page-hero p {
            font-size: 1.15rem;
            color: var(--text-secondary);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.7;
        }
        .page-hero .hero-badge {
            display: inline-block;
            background: rgba(26, 107, 94, 0.12);
            color: var(--primary-dark);
            padding: 6px 20px;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 20px;
            border: 1px solid rgba(26, 107, 94, 0.08);
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 60px 0 44px;
            }
            .page-hero h1 {
                font-size: 2rem;
            }
            .page-hero p {
                font-size: 1rem;
            }
        }
        @media (max-width: 480px) {
            .page-hero h1 {
                font-size: 1.6rem;
            }
        }

        /* ========== 通用板块标题 ========== */
        .section-heading {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-heading h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-heading p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-heading .heading-line {
            width: 50px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 16px auto 0;
        }
        @media (max-width: 576px) {
            .section-heading h2 {
                font-size: 1.5rem;
            }
            .section-heading p {
                font-size: 0.95rem;
            }
        }

        /* ========== 板块间距 ========== */
        .section-padding {
            padding: 72px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 48px 0;
            }
        }

        /* ========== 卡片通用 ========== */
        .card-custom {
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--border-medium);
        }
        .card-custom .card-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: var(--primary-bg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 18px;
            transition: background var(--transition), color var(--transition);
        }
        .card-custom:hover .card-icon {
            background: var(--primary);
            color: #fff;
        }
        .card-custom h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }
        .card-custom p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ========== 步骤/流程 ========== */
        .step-card {
            display: flex;
            gap: 20px;
            padding: 24px 20px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition), transform var(--transition);
            box-shadow: var(--shadow-sm);
            height: 100%;
        }
        .step-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
        }
        .step-content h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-primary);
        }
        .step-content p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        @media (max-width: 576px) {
            .step-card {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }

        /* ========== FAQ ========== */
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-white);
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            text-align: left;
            transition: background var(--transition), color var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            background: var(--primary-bg);
        }
        .faq-question i {
            font-size: 1.1rem;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show {
            display: block;
        }
        @media (max-width: 576px) {
            .faq-question {
                padding: 14px 16px;
                font-size: 0.92rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.88rem;
            }
        }

        /* ========== CTA 区块 ========== */
        .cta-section {
            background: linear-gradient(145deg, var(--primary-dark) 0%, #0d3d36 100%);
            color: var(--text-white);
            padding: 72px 0;
            text-align: center;
            border-radius: var(--radius-xl);
            margin: 0 24px 48px;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--primary-dark);
            border: none;
            border-radius: 50px;
            padding: 14px 36px;
            font-weight: 700;
            font-size: 1.05rem;
            cursor: pointer;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            text-decoration: none;
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-light);
            box-shadow: 0 6px 28px rgba(245, 166, 35, 0.4);
            transform: translateY(-2px);
            color: var(--primary-dark);
        }
        .cta-section .btn-cta:active {
            transform: scale(0.97);
        }
        @media (max-width: 768px) {
            .cta-section {
                margin: 0 16px 32px;
                padding: 48px 24px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
            .cta-section .btn-cta {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
        }

        /* ========== 标签 / 徽章 ========== */
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 0.78rem;
            font-weight: 500;
            background: var(--primary-bg);
            color: var(--primary);
            border: 1px solid rgba(26, 107, 94, 0.12);
        }
        .tag-accent {
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent-dark);
            border-color: rgba(245, 166, 35, 0.18);
        }

        /* ========== 图文列表 ========== */
        .list-check {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .list-check li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 0.96rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .list-check li i {
            color: var(--primary);
            font-size: 1.1rem;
            margin-top: 3px;
            flex-shrink: 0;
        }

        /* ========== 统计数字 ========== */
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--bg-white);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .stat-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.92rem;
            color: var(--text-secondary);
            margin-top: 6px;
        }
        @media (max-width: 768px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
        }
        @media (max-width: 480px) {
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
        }

        /* ========== 内容网格 ========== */
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .content-grid .text-col h3 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 16px;
        }
        .content-grid .text-col p {
            font-size: 1rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .content-grid .img-col {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            background: var(--bg-light);
            min-height: 280px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: var(--primary);
            border: 1px solid var(--border-light);
        }
        @media (max-width: 768px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .content-grid .text-col h3 {
                font-size: 1.4rem;
            }
            .content-grid .img-col {
                min-height: 200px;
                order: -1;
            }
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 56px 0 32px;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.75);
            transition: color var(--transition);
        }
        .site-footer a:hover {
            color: #fff;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand i {
            color: var(--accent);
        }
        .footer-desc {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            margin-bottom: 18px;
            max-width: 320px;
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.6);
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .footer-social a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            transition: color var(--transition), padding-left var(--transition);
            display: inline-block;
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px 24px;
            }
            .footer-grid>div:first-child {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 480px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ========== 工具类 ========== */
        .bg-soft-primary {
            background-color: var(--primary-bg);
        }
        .bg-soft-accent {
            background-color: rgba(245, 166, 35, 0.06);
        }
        .text-primary-dark {
            color: var(--primary-dark);
        }
        .gap-row {
            gap: 24px 0;
        }
        .mb-section {
            margin-bottom: 48px;
        }

        /* ========== 资源卡片额外 ========== */
        .resource-card {
            display: flex;
            flex-direction: column;
            background: var(--bg-white);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: box-shadow var(--transition), transform var(--transition);
            height: 100%;
            box-shadow: var(--shadow-sm);
        }
        .resource-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--border-medium);
        }
        .resource-card .rc-tag {
            align-self: flex-start;
        }
        .resource-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin: 14px 0 8px;
            color: var(--text-primary);
        }
        .resource-card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .resource-card .rc-link {
            margin-top: 16px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
        }
        .resource-card .rc-link i {
            transition: transform var(--transition);
        }
        .resource-card .rc-link:hover i {
            transform: translateX(4px);
        }

        /* ========== 响应式微调 ========== */
        @media (max-width: 992px) {
            .nav-links .nav-link {
                padding: 8px 14px;
                font-size: 0.85rem;
            }
        }
        @media (max-width: 576px) {
            .page-hero .hero-badge {
                font-size: 0.78rem;
                padding: 4px 14px;
            }
        }

/* roulang page: category2 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a4d8c;
            --primary-light: #2a6dcf;
            --primary-dark: #0e3366;
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #10b981;
            --bg-body: #f8fafc;
            --bg-card: #ffffff;
            --bg-dark: #0f172a;
            --bg-dock: rgba(255, 255, 255, 0.92);
            --text-primary: #0f172a;
            --text-body: #334155;
            --text-muted: #64748b;
            --text-light: #f1f5f9;
            --border: #e2e8f0;
            --border-light: #f1f5f9;
            --radius-sm: 0.5rem;
            --radius-md: 0.75rem;
            --radius-lg: 1rem;
            --radius-xl: 1.25rem;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.12);
            --transition: 0.25s ease;
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.65;
            color: var(--text-body);
            background: var(--bg-body);
            padding-top: 88px;
        }

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

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

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

        /* ===== Container ===== */
        .container {
            max-width: 1200px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ===== Floating Dock Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            padding: 0.75rem 1rem;
            background: transparent;
            pointer-events: none;
        }

        .nav-dock {
            max-width: 1100px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            background: var(--bg-dock);
            backdrop-filter: blur(16px) saturate(180%);
            -webkit-backdrop-filter: blur(16px) saturate(180%);
            border: 1px solid rgba(226, 232, 240, 0.6);
            border-radius: 60px;
            padding: 0.5rem 0.75rem 0.5rem 1.5rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 4px rgba(0, 0, 0, 0.02);
            pointer-events: auto;
            transition: box-shadow var(--transition);
        }
        .nav-dock:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--primary-dark);
            text-decoration: none;
            flex-shrink: 0;
            transition: opacity var(--transition);
        }
        .nav-brand:hover {
            color: var(--primary-dark);
            opacity: 0.85;
        }
        .nav-brand i {
            font-size: 1.4rem;
            color: var(--secondary);
            filter: drop-shadow(0 2px 4px rgba(245, 158, 11, 0.3));
        }
        .nav-brand span {
            letter-spacing: -0.01em;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 0.25rem;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }
        .nav-item .nav-link {
            display: block;
            padding: 0.4rem 1rem;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-body);
            transition: all var(--transition);
            text-decoration: none;
            white-space: nowrap;
        }
        .nav-item .nav-link:hover {
            background: rgba(26, 77, 140, 0.08);
            color: var(--primary);
        }
        .nav-item .nav-link.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(26, 77, 140, 0.25);
        }
        .nav-item .nav-link.active:hover {
            background: var(--primary-light);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-shrink: 0;
        }

        .nav-search {
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 0.35rem 1rem 0.35rem 2.2rem;
            font-size: 0.85rem;
            width: 150px;
            background: var(--bg-body) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E") no-repeat 0.7rem center;
            transition: all var(--transition);
            outline: none;
        }
        .nav-search:focus {
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(26, 77, 140, 0.12);
            width: 200px;
        }
        .nav-search::placeholder {
            color: var(--text-muted);
        }

        .btn-dock {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.4rem 1.2rem;
            border-radius: 40px;
            background: var(--secondary);
            color: #1e293b;
            font-weight: 600;
            font-size: 0.88rem;
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition);
            box-shadow: 0 2px 8px rgba(245, 158, 11, 0.25);
        }
        .btn-dock:hover {
            background: var(--secondary-light);
            color: #1e293b;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(245, 158, 11, 0.35);
        }
        .btn-dock .btn-label {
            display: inline;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.3rem;
            color: var(--text-primary);
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(0, 0, 0, 0.05);
        }

        /* ===== Hero ===== */
        .hero-section {
            background: linear-gradient(135deg, #0e3366 0%, #1a4d8c 50%, #2a6dcf 100%);
            padding: 5rem 0 4rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 80%, rgba(245, 158, 11, 0.15) 0%, transparent 70%),
                radial-gradient(ellipse at 80% 20%, rgba(16, 185, 129, 0.1) 0%, transparent 60%);
            pointer-events: none;
        }
        .hero-section .container {
            position: relative;
            z-index: 1;
        }
        .hero-section h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        .hero-section h1 i {
            color: var(--secondary-light);
            margin-right: 0.3rem;
        }
        .hero-section p {
            font-size: 1.15rem;
            max-width: 640px;
            margin: 0 auto 1.8rem;
            opacity: 0.88;
            line-height: 1.7;
        }
        .hero-section .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.5rem;
        }
        .hero-section .hero-tags .badge {
            background: rgba(255, 255, 255, 0.15);
            backdrop-filter: blur(4px);
            color: #fff;
            font-weight: 500;
            padding: 0.4rem 1rem;
            border-radius: 40px;
            font-size: 0.85rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        /* ===== Section Spacing ===== */
        .section-padding {
            padding: 5rem 0;
        }
        .section-padding-sm {
            padding: 3.5rem 0;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            margin-bottom: 0.75rem;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 620px;
            margin-bottom: 2.5rem;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            margin-bottom: 1.5rem;
        }

        /* ===== Cards ===== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            overflow: hidden;
        }
        .card-custom:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--primary-light);
        }
        .card-custom .card-body {
            padding: 1.75rem;
        }
        .card-custom .card-icon {
            font-size: 2.2rem;
            color: var(--primary-light);
            margin-bottom: 1rem;
        }
        .card-custom .card-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .card-custom .card-text {
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.7;
        }
        .card-custom .card-tag {
            display: inline-block;
            background: rgba(26, 77, 140, 0.08);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: 40px;
            margin-bottom: 0.75rem;
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary-light);
        }
        .faq-question {
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(26, 77, 140, 0.03);
        }
        .faq-question i {
            color: var(--primary-light);
            transition: transform var(--transition);
            font-size: 0.9rem;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 1.5rem 1.25rem;
            color: var(--text-body);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== Steps / Timeline ===== */
        .step-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .step-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--border-light);
        }
        .step-item:last-child {
            border-bottom: none;
        }
        .step-number {
            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;
            box-shadow: 0 4px 12px rgba(26, 77, 140, 0.2);
        }
        .step-content h5 {
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
        }
        .step-content p {
            color: var(--text-body);
            font-size: 0.95rem;
            margin: 0;
        }

        /* ===== Stats ===== */
        .stat-block {
            text-align: center;
            padding: 2rem 1rem;
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 0.4rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0e3366, #1a4d8c);
            color: #fff;
            text-align: center;
            padding: 4.5rem 0;
            border-radius: 0;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .cta-section p {
            font-size: 1.1rem;
            opacity: 0.88;
            max-width: 560px;
            margin: 0 auto 2rem;
        }
        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.85rem 2.5rem;
            border-radius: 50px;
            background: var(--secondary);
            color: #1e293b;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
        }
        .cta-section .btn-cta:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(245, 158, 11, 0.4);
            color: #1e293b;
        }
        .cta-section .btn-cta-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.8rem 2.2rem;
            border-radius: 50px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.3);
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition);
            margin-left: 0.75rem;
        }
        .cta-section .btn-cta-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-light);
            padding: 4rem 0 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            margin-bottom: 2.5rem;
        }
        .footer-brand {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .footer-brand i {
            color: var(--secondary);
            margin-right: 0.3rem;
        }
        .footer-desc {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            max-width: 340px;
        }
        .footer-social {
            display: flex;
            gap: 0.75rem;
            margin-top: 1.25rem;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            transition: all var(--transition);
            text-decoration: none;
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: #1e293b;
            transform: translateY(-2px);
        }
        .footer-heading {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.5rem;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color var(--transition);
            text-decoration: none;
        }
        .footer-links a:hover {
            color: var(--secondary-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.75rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--secondary-light);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-section h1 {
                font-size: 2.3rem;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 76px;
            }
            .site-header {
                padding: 0.5rem 0.75rem;
            }
            .nav-dock {
                padding: 0.4rem 0.5rem 0.4rem 1rem;
                border-radius: 40px;
            }
            .nav-brand {
                font-size: 1rem;
            }
            .nav-brand i {
                font-size: 1.1rem;
            }
            .nav-links {
                display: none;
                position: absolute;
                top: calc(100% + 8px);
                left: 0;
                right: 0;
                background: var(--bg-dock);
                backdrop-filter: blur(16px);
                border-radius: var(--radius-lg);
                padding: 0.75rem;
                box-shadow: var(--shadow-lg);
                border: 1px solid var(--border);
                flex-direction: column;
                gap: 0.25rem;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-item .nav-link {
                padding: 0.6rem 1rem;
                border-radius: var(--radius-sm);
            }
            .nav-search {
                width: 100px;
                padding-left: 1.8rem;
                font-size: 0.8rem;
            }
            .nav-search:focus {
                width: 130px;
            }
            .btn-dock .btn-label {
                display: none;
            }
            .btn-dock {
                padding: 0.4rem 0.8rem;
                font-size: 0.9rem;
            }
            .nav-toggle {
                display: block;
            }

            .hero-section {
                padding: 3.5rem 0 2.5rem;
            }
            .hero-section h1 {
                font-size: 1.8rem;
            }
            .hero-section p {
                font-size: 1rem;
            }

            .section-padding {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.6rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section .btn-cta-outline {
                margin-left: 0;
                margin-top: 0.75rem;
            }

            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 520px) {
            .nav-dock {
                padding: 0.3rem 0.4rem 0.3rem 0.75rem;
                gap: 0.4rem;
            }
            .nav-brand span {
                font-size: 0.85rem;
            }
            .nav-search {
                width: 70px;
                padding-left: 1.6rem;
                font-size: 0.75rem;
            }
            .nav-search:focus {
                width: 90px;
            }
            .btn-dock {
                padding: 0.35rem 0.6rem;
                font-size: 0.8rem;
            }
            .hero-section h1 {
                font-size: 1.5rem;
            }
            .hero-section .hero-tags .badge {
                font-size: 0.75rem;
                padding: 0.3rem 0.7rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .card-custom .card-body {
                padding: 1.25rem;
            }
        }

        /* ===== Utility ===== */
        .bg-soft-primary {
            background: rgba(26, 77, 140, 0.04);
        }
        .border-section {
            border-top: 1px solid var(--border);
        }
        .gap-grid {
            gap: 1.5rem 0;
        }
        .text-primary-custom {
            color: var(--primary);
        }
        .text-secondary-custom {
            color: var(--secondary);
        }
        .fw-600 {
            font-weight: 600;
        }

        /* ===== Breadcrumb (inline) ===== */
        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0.5rem;
            list-style: none;
            padding: 0;
        }
        .breadcrumb-custom li+li::before {
            content: '/';
            margin: 0 0.4rem;
            color: var(--border);
        }
        .breadcrumb-custom a {
            color: var(--text-muted);
            text-decoration: none;
        }
        .breadcrumb-custom a:hover {
            color: var(--primary);
        }
        .breadcrumb-custom .active {
            color: var(--primary);
            font-weight: 500;
        }