/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #7C3AED;
            --color-primary-light: #8B5CF6;
            --color-primary-dark: #6D28D9;
            --color-secondary: #F59E0B;
            --color-secondary-light: #FBBF24;
            --color-secondary-dark: #D97706;
            --color-accent: #EC4899;
            --color-bg: #FAFBFC;
            --color-bg-alt: #F1F5F9;
            --color-bg-card: #FFFFFF;
            --color-text: #1E293B;
            --color-text-secondary: #64748B;
            --color-text-light: #94A3B8;
            --color-border: #E2E8F0;
            --color-border-light: #F1F5F9;
            --color-success: #10B981;
            --color-error: #EF4444;
            --color-warning: #F59E0B;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --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), 0 2px 4px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.10), 0 4px 12px rgba(0, 0, 0, 0.06);
            --shadow-xl: 0 24px 48px rgba(0, 0, 0, 0.12);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 72px;
            --spacing-section: 100px;
            --spacing-section-mobile: 60px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

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

        a:focus-visible {
            outline: 2px solid var(--color-primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-text);
        }

        h1 {
            font-size: clamp(2.2rem, 5vw, 3.8rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.6rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        h4 {
            font-size: 1.1rem;
        }

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

        .container-narrow {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 0;
            transition: background var(--transition), box-shadow var(--transition);
            pointer-events: none;
        }

        .header.scrolled {
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            padding: 10px 0;
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            pointer-events: auto;
        }

        .nav-capsule {
            display: flex;
            align-items: center;
            gap: 32px;
            background: rgba(255, 255, 255, 0.75);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            padding: 10px 28px;
            border-radius: var(--radius-full);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.6);
            width: 100%;
            max-width: 1100px;
            margin: 0 auto;
        }

        .header.scrolled .nav-capsule {
            background: rgba(255, 255, 255, 0.92);
            box-shadow: 0 4px 32px rgba(0, 0, 0, 0.08);
        }

        .nav-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: -0.5px;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
        }

        .nav-logo .logo-text {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .nav-links a {
            padding: 8px 20px;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            transition: all var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(124, 58, 237, 0.08);
        }

        .nav-links a.active {
            color: #fff;
            background: var(--color-primary);
            box-shadow: 0 4px 12px rgba(124, 58, 237, 0.30);
        }

        .nav-links a.active:hover {
            background: var(--color-primary-dark);
            color: #fff;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-text-secondary);
            transition: all var(--transition);
            font-size: 1rem;
        }

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

        .nav-cta {
            padding: 10px 24px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            box-shadow: 0 4px 16px rgba(124, 58, 237, 0.25);
            white-space: nowrap;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(124, 58, 237, 0.35);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid var(--color-border);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--color-text);
            transition: all var(--transition);
        }

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

        /* ===== 移动端导航抽屉 ===== */
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.4);
            backdrop-filter: blur(8px);
            z-index: 1999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .mobile-menu-overlay.open {
            opacity: 1;
        }

        .mobile-menu {
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: 320px;
            max-width: 85vw;
            background: #fff;
            z-index: 2000;
            padding: 32px 28px;
            box-shadow: -8px 0 40px rgba(0, 0, 0, 0.10);
            transform: translateX(100%);
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            flex-direction: column;
        }

        .mobile-menu.open {
            transform: translateX(0);
        }

        .mobile-menu-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 40px;
        }

        .mobile-menu-close {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--color-text);
            transition: all var(--transition);
        }

        .mobile-menu-close:hover {
            background: var(--color-error);
            color: #fff;
        }

        .mobile-menu-links {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }

        .mobile-menu-links a {
            padding: 14px 20px;
            border-radius: var(--radius-md);
            font-size: 1.1rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            transition: all var(--transition);
        }

        .mobile-menu-links a:hover {
            background: var(--color-bg-alt);
            color: var(--color-primary);
        }

        .mobile-menu-links a.active {
            background: var(--color-primary);
            color: #fff;
        }

        .mobile-menu-footer {
            padding-top: 24px;
            border-top: 1px solid var(--color-border);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .mobile-menu-footer .nav-cta {
            text-align: center;
            padding: 14px;
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #1E0B3A 0%, #2D1B69 40%, #1A103C 100%);
            overflow: hidden;
            padding-top: var(--header-height);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.25;
            mix-blend-mode: overlay;
        }

        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(124, 58, 237, 0.25) 0%, transparent 70%),
                radial-gradient(ellipse at 70% 30%, rgba(245, 158, 11, 0.12) 0%, transparent 60%);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            padding-top: 40px;
            padding-bottom: 80px;
        }

        .hero-content {
            max-width: 760px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }

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

        .hero h1 {
            color: #fff;
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--color-secondary), #F97316);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: clamp(1.05rem, 2vw, 1.25rem);
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            line-height: 1.8;
            margin-bottom: 36px;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            transition: all var(--transition);
            box-shadow: 0 8px 28px rgba(245, 158, 11, 0.30);
            border: none;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(245, 158, 11, 0.40);
            color: #fff;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.10);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.20);
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            transition: all var(--transition);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.18);
            border-color: rgba(255, 255, 255, 0.30);
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-stats {
            display: flex;
            gap: 48px;
            margin-top: 64px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.10);
        }

        .hero-stat h3 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
        }

        .hero-stat h3 span {
            color: var(--color-secondary);
        }

        .hero-stat p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 0;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: var(--spacing-section) 0;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-header h2 {
            margin-bottom: 16px;
        }

        .section-header p {
            max-width: 640px;
            margin: 0 auto;
            color: var(--color-text-secondary);
            font-size: 1.1rem;
        }

        .section-tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: var(--radius-full);
            background: rgba(124, 58, 237, 0.08);
            color: var(--color-primary);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        /* ===== 介绍板块 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

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

        .intro-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .intro-image::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.15), transparent 60%);
            pointer-events: none;
        }

        .intro-text h2 {
            margin-bottom: 20px;
        }

        .intro-text p {
            color: var(--color-text-secondary);
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 28px;
        }

        .intro-feature {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            background: var(--color-bg-alt);
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
        }

        .intro-feature i {
            color: var(--color-primary);
            font-size: 1.1rem;
        }

        /* ===== 优势卡片 ===== */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .advantage-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 40px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            text-align: center;
        }

        .advantage-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(124, 58, 237, 0.15);
        }

        .advantage-icon {
            width: 72px;
            height: 72px;
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, rgba(124, 58, 237, 0.08), rgba(236, 72, 153, 0.08));
            color: var(--color-primary);
            transition: all var(--transition);
        }

        .advantage-card:hover .advantage-icon {
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #fff;
            transform: scale(1.05);
        }

        .advantage-card h3 {
            margin-bottom: 12px;
        }

        .advantage-card p {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== 分类入口 ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .category-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 32px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            text-align: center;
            cursor: pointer;
            position: relative;
            overflow: hidden;
        }

        .category-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
            opacity: 0;
            transition: opacity var(--transition);
        }

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

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

        .category-card .cat-icon {
            width: 60px;
            height: 60px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin: 0 auto 16px;
            color: #fff;
        }

        .cat-icon.purple {
            background: linear-gradient(135deg, #7C3AED, #8B5CF6);
        }
        .cat-icon.amber {
            background: linear-gradient(135deg, #F59E0B, #FBBF24);
        }
        .cat-icon.pink {
            background: linear-gradient(135deg, #EC4899, #F472B6);
        }
        .cat-icon.teal {
            background: linear-gradient(135deg, #14B8A6, #2DD4BF);
        }

        .category-card h3 {
            margin-bottom: 8px;
            font-size: 1.1rem;
        }

        .category-card p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .category-card .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9rem;
            transition: gap var(--transition);
        }

        .category-card:hover .cat-link {
            gap: 12px;
        }

        /* ===== 最新资讯列表 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .news-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .news-card-image {
            width: 100%;
            height: 220px;
            object-fit: cover;
            border-radius: 0;
        }

        .news-card-body {
            padding: 24px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 12px;
            font-size: 0.85rem;
            color: var(--color-text-light);
        }

        .news-card-meta .badge {
            padding: 4px 14px;
            border-radius: var(--radius-full);
            background: rgba(124, 58, 237, 0.08);
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.8rem;
        }

        .news-card h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .news-card h3 a {
            color: var(--color-text);
            transition: color var(--transition);
        }

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

        .news-card p {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .news-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--color-primary);
            font-weight: 600;
            font-size: 0.9rem;
            transition: gap var(--transition);
        }

        .news-card .read-more:hover {
            gap: 12px;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--color-text-secondary);
            font-size: 1.05rem;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--color-border);
        }

        .news-empty i {
            font-size: 2.4rem;
            color: var(--color-text-light);
            margin-bottom: 16px;
            display: block;
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .stat-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 36px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
        }

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

        .stat-card .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .stat-card .stat-label {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            margin-top: 8px;
            font-weight: 500;
        }

        .stat-card .stat-icon {
            font-size: 1.6rem;
            color: var(--color-primary-light);
            margin-bottom: 12px;
        }

        /* ===== 使用流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent));
            opacity: 0.3;
            z-index: 0;
        }

        .step-card {
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 12px;
        }

        .step-number {
            width: 80px;
            height: 80px;
            border-radius: var(--radius-full);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            box-shadow: 0 8px 24px rgba(124, 58, 237, 0.25);
            transition: all var(--transition);
        }

        .step-card:hover .step-number {
            transform: scale(1.08);
            box-shadow: 0 12px 36px rgba(124, 58, 237, 0.35);
        }

        .step-card h3 {
            font-size: 1.1rem;
            margin-bottom: 10px;
        }

        .step-card p {
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(124, 58, 237, 0.15);
        }

        .faq-question {
            width: 100%;
            padding: 20px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--color-text);
            background: none;
            text-align: left;
            transition: all var(--transition);
            gap: 16px;
        }

        .faq-question:hover {
            color: var(--color-primary);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: var(--radius-full);
            background: var(--color-bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            color: var(--color-text-secondary);
            transition: all var(--transition);
        }

        .faq-item.active .faq-question .faq-icon {
            background: var(--color-primary);
            color: #fff;
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 28px;
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 28px 24px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1E0B3A 0%, #2D1B69 50%, #1A103C 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-section h2 {
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 36px;
        }

        .cta-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 18px 44px;
            border-radius: var(--radius-full);
            background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all var(--transition);
            box-shadow: 0 8px 32px rgba(245, 158, 11, 0.30);
        }

        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 44px rgba(245, 158, 11, 0.45);
            color: #fff;
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 18px 44px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.20);
            color: #fff;
            font-weight: 600;
            font-size: 1.05rem;
            transition: all var(--transition);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.30);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0F0A1A;
            padding: 64px 0 0;
            color: rgba(255, 255, 255, 0.7);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand .nav-logo {
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 0.95rem;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: color var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-col ul li a:hover {
            color: var(--color-secondary);
        }

        .footer-col ul li a i {
            font-size: 0.7rem;
            color: var(--color-primary-light);
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 1rem;
            transition: all var(--transition);
        }

        .footer-social a:hover {
            background: var(--color-primary);
            color: #fff;
            transform: translateY(-2px);
        }

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a:hover {
            color: var(--color-secondary);
        }

        .footer-bottom-links {
            display: flex;
            gap: 24px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .intro-grid {
                gap: 40px;
            }

            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-grid::before {
                display: none;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 36px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: var(--spacing-section-mobile);
            }

            .nav-capsule {
                padding: 8px 16px;
                gap: 12px;
            }

            .nav-links {
                display: none;
            }

            .nav-actions .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-search {
                width: 36px;
                height: 36px;
                font-size: 0.9rem;
            }

            .nav-logo {
                font-size: 1.2rem;
            }

            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }

            .hero {
                min-height: 90vh;
            }

            .hero-content {
                text-align: center;
            }

            .hero p {
                margin-left: auto;
                margin-right: auto;
            }

            .hero-actions {
                justify-content: center;
            }

            .hero-stats {
                justify-content: center;
                gap: 32px;
                flex-wrap: wrap;
            }

            .hero-stat h3 {
                font-size: 1.6rem;
            }

            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .intro-image img {
                height: 280px;
            }

            .intro-features {
                grid-template-columns: 1fr;
            }

            .advantages-grid {
                grid-template-columns: 1fr;
            }

            .categories-grid {
                grid-template-columns: 1fr;
            }

            .news-grid {
                grid-template-columns: 1fr;
            }

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

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .step-number {
                width: 64px;
                height: 64px;
                font-size: 1.4rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

            .section-header {
                margin-bottom: 36px;
            }

            .section-header p {
                font-size: 1rem;
            }

            .mobile-menu-overlay {
                display: block;
                visibility: hidden;
            }

            .mobile-menu-overlay.open {
                visibility: visible;
            }

            .mobile-menu {
                display: flex;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .nav-capsule {
                padding: 6px 12px;
                border-radius: 40px;
            }

            .hero {
                min-height: 85vh;
            }

            .hero-stats {
                gap: 20px;
            }

            .hero-stat h3 {
                font-size: 1.3rem;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-card {
                padding: 24px 16px;
            }

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

            .btn-primary,
            .btn-secondary {
                padding: 14px 28px;
                font-size: 0.95rem;
            }

            .btn-cta,
            .btn-ghost {
                padding: 14px 28px;
                font-size: 0.95rem;
            }

            .news-card-body {
                padding: 18px 20px 22px;
            }

            .faq-question {
                padding: 16px 20px;
                font-size: 0.95rem;
            }

            .faq-answer {
                padding: 0 20px;
                font-size: 0.9rem;
            }

            .faq-item.active .faq-answer {
                padding: 0 20px 18px;
            }

            .advantage-card {
                padding: 28px 20px;
            }
        }

        /* ===== 辅助类 ===== */
        .text-center {
            text-align: center;
        }

        .mt-8 {
            margin-top: 8px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mt-40 {
            margin-top: 40px;
        }

        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .mb-32 {
            margin-bottom: 32px;
        }

        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .gap-16 {
            gap: 16px;
        }

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

        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }

        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }
        .delay-4 {
            animation-delay: 0.4s;
        }
        .delay-5 {
            animation-delay: 0.5s;
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #6C5CE7;
            --primary-dark: #5A4BD1;
            --primary-light: #A29BFE;
            --primary-bg: rgba(108, 92, 231, 0.08);
            --accent: #FD79A8;
            --accent-light: #FDCB6E;
            --bg: #F8F9FE;
            --bg-card: #FFFFFF;
            --bg-dark: #1A1A2E;
            --bg-dark-alt: #16213E;
            --text: #2D3436;
            --text-light: #636E72;
            --text-muted: #B2BEC3;
            --border: #E8E8F0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 8px 32px rgba(108, 92, 231, 0.10);
            --shadow-hover: 0 16px 48px rgba(108, 92, 231, 0.18);
            --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.06);
            --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container: 1200px;
            --nav-height: 72px;
        }

        /* ===== 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            padding-top: var(--nav-height);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        ul {
            list-style: none;
        }

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

        .section {
            padding: 80px 0;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .section-sub {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 600px;
            line-height: 1.6;
        }

        .text-center {
            text-align: center;
        }

        /* ===== Header & Navigation (Capsule) ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(108, 92, 231, 0.10);
            height: var(--nav-height);
            transition: var(--transition);
        }

        .header.scrolled {
            background: rgba(255, 255, 255, 0.96);
            box-shadow: 0 4px 30px rgba(108, 92, 231, 0.08);
        }

        .nav-capsule {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--nav-height);
            gap: 16px;
        }

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

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            letter-spacing: -0.04em;
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.30);
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.02em;
        }

        .logo-text span {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            background: var(--bg);
            padding: 4px;
            border-radius: 50px;
            border: 1px solid var(--border);
        }

        .nav-links a {
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(108, 92, 231, 0.06);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(108, 92, 231, 0.30);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .nav-search {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-light);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            font-size: 1rem;
        }

        .nav-search:hover {
            background: var(--primary-bg);
            color: var(--primary);
            border-color: var(--primary-light);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(108, 92, 231, 0.25);
            white-space: nowrap;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(108, 92, 231, 0.35);
            color: #fff;
        }

        .nav-cta i {
            font-size: 0.85rem;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: var(--transition);
        }

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

        /* ===== Article Hero ===== */
        .article-hero {
            padding: 60px 0 40px;
            background: linear-gradient(135deg, var(--bg) 0%, rgba(108, 92, 231, 0.05) 100%);
            position: relative;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .article-hero .container {
            position: relative;
            z-index: 1;
        }

        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--text-light);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .article-breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }

        .article-breadcrumb a:hover {
            text-decoration: underline;
        }

        .article-breadcrumb .sep {
            color: var(--text-muted);
            font-size: 0.75rem;
        }

        .article-hero h1 {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.02em;
            color: var(--text);
            max-width: 900px;
            margin-bottom: 20px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            color: var(--text-light);
            font-size: 0.92rem;
        }

        .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .meta-item i {
            color: var(--primary-light);
            font-size: 0.85rem;
        }

        .article-meta .category-badge {
            background: var(--primary-bg);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.82rem;
        }

        /* ===== Article Body ===== */
        .article-body-section {
            padding: 40px 0 60px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 48px;
            align-items: start;
        }

        .article-main {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-soft);
            padding: 40px;
            border: 1px solid var(--border);
        }

        .article-main .featured-image {
            width: 100%;
            border-radius: var(--radius-sm);
            margin-bottom: 32px;
            object-fit: cover;
            aspect-ratio: 16/9;
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: var(--text);
        }

        .article-content p {
            margin-bottom: 20px;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-top: 40px;
            margin-bottom: 16px;
            color: var(--text);
            letter-spacing: -0.01em;
        }

        .article-content h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: var(--text);
        }

        .article-content ul,
        .article-content ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content ul li {
            list-style: disc;
        }

        .article-content ol li {
            list-style: decimal;
        }

        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-bg);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }

        .article-content a {
            color: var(--primary);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

        .article-content a:hover {
            color: var(--primary-dark);
        }

        .article-content img {
            border-radius: var(--radius-sm);
            margin: 24px 0;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
        }

        .article-tags .tag {
            padding: 6px 16px;
            border-radius: 50px;
            background: var(--bg);
            border: 1px solid var(--border);
            font-size: 0.82rem;
            color: var(--text-light);
            transition: var(--transition);
        }

        .article-tags .tag:hover {
            background: var(--primary-bg);
            border-color: var(--primary-light);
            color: var(--primary);
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-soft);
            padding: 28px;
            border: 1px solid var(--border);
        }

        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--primary-bg);
        }

        .sidebar-related-item {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
        }

        .sidebar-related-item:last-child {
            border-bottom: none;
        }

        .sidebar-related-item:hover {
            padding-left: 6px;
        }

        .sidebar-related-item .related-img {
            width: 70px;
            height: 70px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .sidebar-related-item .related-info h4 {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.4;
            margin-bottom: 4px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .sidebar-related-item .related-info .related-date {
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
        }

        .sidebar-cta h3 {
            color: #fff;
            border-bottom-color: rgba(255, 255, 255, 0.2);
        }

        .sidebar-cta p {
            font-size: 0.92rem;
            opacity: 0.9;
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .sidebar-cta .btn-sidebar {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        .sidebar-cta .btn-sidebar:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.20);
            color: var(--primary-dark);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 60px 0 80px;
            background: var(--bg);
        }

        .cta-box {
            background: linear-gradient(135deg, var(--bg-dark), var(--bg-dark-alt));
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: -30%;
            left: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(108, 92, 231, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-box::after {
            content: '';
            position: absolute;
            bottom: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(253, 121, 168, 0.10) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-box .container {
            position: relative;
            z-index: 1;
        }

        .cta-box h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-box p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .cta-box .btn-group {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 50px;
            background: #fff;
            color: var(--primary);
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.20);
            color: var(--primary-dark);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 34px;
            border-radius: 50px;
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border: 2px solid rgba(255, 255, 255, 0.30);
            transition: var(--transition);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.10);
            border-color: rgba(255, 255, 255, 0.50);
            color: #fff;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.80);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .nav-logo {
            margin-bottom: 16px;
        }

        .footer-brand .nav-logo .logo-text {
            color: #fff;
        }

        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.60);
            max-width: 360px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.60);
            font-size: 1.2rem;
            transition: var(--transition);
            border: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }

        .footer-col ul li a i {
            font-size: 0.6rem;
            color: var(--primary-light);
        }

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.40);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.50);
        }

        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        .footer-bottom-links {
            display: flex;
            gap: 20px;
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 24px;
        }

        .not-found-box .nf-icon {
            font-size: 4rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .not-found-box h2 {
            font-size: 1.6rem;
            color: var(--text);
            margin-bottom: 12px;
        }

        .not-found-box p {
            color: var(--text-light);
            margin-bottom: 24px;
        }

        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 50px;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            transition: var(--transition);
        }

        .not-found-box .btn-back:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
            }

            .section {
                padding: 48px 0;
            }

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

            .nav-links {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 12px;
                right: 12px;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                border-radius: var(--radius);
                box-shadow: var(--shadow);
                padding: 12px;
                flex-direction: column;
                border: 1px solid var(--border);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 12px 20px;
                width: 100%;
                border-radius: var(--radius-sm);
            }

            .nav-cta {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .article-hero {
                padding: 40px 0 28px;
            }

            .article-hero h1 {
                font-size: 1.6rem;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.82rem;
            }

            .article-main {
                padding: 24px;
            }

            .article-content {
                font-size: 0.98rem;
            }

            .article-content h2 {
                font-size: 1.25rem;
            }

            .article-content h3 {
                font-size: 1.08rem;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }

            .cta-box {
                padding: 40px 24px;
                border-radius: var(--radius);
            }

            .cta-box h2 {
                font-size: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

            .footer-bottom-links {
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .article-hero h1 {
                font-size: 1.35rem;
            }

            .article-main {
                padding: 16px;
            }

            .article-meta .meta-item.hide-mobile {
                display: none;
            }

            .btn-primary,
            .btn-outline-light {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }

            .cta-box .btn-group {
                flex-direction: column;
                width: 100%;
            }

            .cta-box .btn-group a {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Utility ===== */
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mt-4 {
            margin-top: 32px;
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .mb-4 {
            margin-bottom: 32px;
        }
        .gap-1 {
            gap: 8px;
        }
        .gap-2 {
            gap: 16px;
        }
        .flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .items-center {
            align-items: center;
        }
        .justify-between {
            justify-content: space-between;
        }
        .text-muted {
            color: var(--text-muted);
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #6366F1;
            --primary-dark: #4F46E5;
            --primary-light: #A5B4FC;
            --primary-bg: #EEF2FF;
            --secondary: #F59E0B;
            --secondary-light: #FDE68A;
            --accent: #EC4899;
            --accent-light: #FCE7F3;
            --success: #10B981;
            --success-bg: #D1FAE5;
            --bg: #F8FAFC;
            --bg-white: #FFFFFF;
            --bg-gray: #F1F5F9;
            --bg-warm: #FFFDF5;
            --text: #1E293B;
            --text-medium: #475569;
            --text-light: #64748B;
            --text-lighter: #94A3B8;
            --border: #E2E8F0;
            --border-light: #F1F5F9;
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --radius-full: 9999px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.10);
            --shadow-hover: 0 12px 36px rgba(99,102,241,0.18);
            --shadow-card: 0 4px 16px rgba(0,0,0,0.05);
            --shadow-card-hover: 0 12px 36px rgba(99,102,241,0.13);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --container: 1200px;
            --nav-height: 72px;
            --section-gap: 100px;
            --section-gap-mobile: 60px;
        }

        /* ===== 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);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            transition: var(--transition);
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text);
        }

        h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        h4 {
            font-size: clamp(1rem, 1.8vw, 1.2rem);
        }

        p {
            color: var(--text-medium);
            line-height: 1.7;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 胶囊导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 12px 0;
            transition: var(--transition);
            background: transparent;
        }

        .header.scrolled {
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
            padding: 6px 0;
        }

        .nav-capsule {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.78);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.5);
            border-radius: var(--radius-full);
            padding: 8px 16px 8px 20px;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.05);
            transition: var(--transition);
        }

        .header.scrolled .nav-capsule {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 4px 28px rgba(0, 0, 0, 0.07);
        }

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

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
        }

        .logo-text {
            font-weight: 700;
            font-size: 20px;
            color: var(--text);
            letter-spacing: -0.02em;
        }

        .logo-text span {
            color: var(--primary);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 15px;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text);
            background: var(--bg-gray);
        }

        .nav-links a.active {
            color: var(--primary-dark);
            background: var(--primary-bg);
            font-weight: 600;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-search {
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-full);
            color: var(--text-light);
            font-size: 16px;
            transition: var(--transition);
        }

        .nav-search:hover {
            background: var(--bg-gray);
            color: var(--text);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 14px;
            box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(99, 102, 241, 0.4);
            color: #fff;
        }

        .nav-cta i {
            font-size: 14px;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-full);
            color: var(--text);
            font-size: 20px;
            background: var(--bg-gray);
        }

        @media (max-width: 900px) {
            .nav-links {
                position: fixed;
                top: 80px;
                left: 16px;
                right: 16px;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border: 1px solid var(--border);
                border-radius: var(--radius-lg);
                padding: 16px;
                flex-direction: column;
                gap: 6px;
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
                opacity: 0;
                visibility: hidden;
                transform: translateY(-12px) scale(0.96);
                transition: var(--transition);
                pointer-events: none;
            }

            .nav-links.open {
                opacity: 1;
                visibility: visible;
                transform: translateY(0) scale(1);
                pointer-events: auto;
            }

            .nav-links a {
                width: 100%;
                justify-content: center;
                padding: 12px 20px;
                font-size: 16px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .nav-cta {
                padding: 10px 16px;
                font-size: 13px;
            }

            .nav-cta span {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .nav-capsule {
                padding: 6px 12px 6px 16px;
            }

            .logo-text {
                font-size: 17px;
            }

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

            .nav-cta {
                padding: 8px 14px;
                font-size: 12px;
            }

            .nav-cta i {
                margin-right: 0;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 140px 0 80px;
            background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 40%, #C7D2FE 100%);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .hero-bg-decoration {
            position: absolute;
            inset: 0;
            z-index: 1;
            pointer-events: none;
            overflow: hidden;
        }

        .hero-bg-decoration .circle {
            position: absolute;
            border-radius: 50%;
            background: rgba(99, 102, 241, 0.08);
        }

        .hero-bg-decoration .circle:nth-child(1) {
            width: 600px;
            height: 600px;
            top: -200px;
            right: -150px;
            background: rgba(99, 102, 241, 0.06);
        }

        .hero-bg-decoration .circle:nth-child(2) {
            width: 400px;
            height: 400px;
            bottom: -100px;
            left: -100px;
            background: rgba(245, 158, 11, 0.06);
        }

        .hero-bg-decoration .circle:nth-child(3) {
            width: 200px;
            height: 200px;
            top: 40%;
            left: 10%;
            background: rgba(236, 72, 153, 0.04);
        }

        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: var(--radius-full);
            font-size: 14px;
            font-weight: 500;
            color: var(--primary-dark);
            margin-bottom: 24px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }

        .hero-badge i {
            font-size: 14px;
            color: var(--primary);
        }

        .hero h1 {
            font-weight: 800;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--text) 30%, var(--primary-dark) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: clamp(1.05rem, 2vw, 1.25rem);
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-actions .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 16px;
            box-shadow: 0 8px 28px rgba(99, 102, 241, 0.3);
            transition: var(--transition);
        }

        .hero-actions .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(99, 102, 241, 0.4);
        }

        .hero-actions .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 32px;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border);
            color: var(--text);
            border-radius: var(--radius-full);
            font-weight: 500;
            font-size: 16px;
            transition: var(--transition);
        }

        .hero-actions .btn-secondary:hover {
            background: #fff;
            border-color: var(--primary-light);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        @media (max-width: 768px) {
            .hero {
                min-height: 420px;
                padding: 120px 0 60px;
            }

            .hero h1 {
                font-size: clamp(1.8rem, 6vw, 2.4rem);
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                padding: 14px 28px;
                font-size: 15px;
            }
        }

        @media (max-width: 520px) {
            .hero {
                min-height: 360px;
                padding: 100px 0 50px;
            }

            .hero-badge {
                font-size: 12px;
                padding: 4px 14px;
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: var(--section-gap) 0;
        }

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

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

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-header h2 {
            margin-bottom: 14px;
        }

        .section-header p {
            max-width: 560px;
            margin: 0 auto;
            color: var(--text-light);
            font-size: 1.05rem;
        }

        .section-header .badge-group {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 4px 16px;
            background: var(--primary-bg);
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 16px;
        }

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

            .section-header {
                margin-bottom: 40px;
            }
        }

        /* ===== 指南分类卡片 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .guide-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 32px 28px 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }

        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-light);
        }

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

        .guide-card .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 16px;
            font-size: 24px;
            margin-bottom: 20px;
            color: #fff;
        }

        .guide-card .card-icon.purple {
            background: linear-gradient(135deg, #818CF8, #6366F1);
        }
        .guide-card .card-icon.amber {
            background: linear-gradient(135deg, #FBBF24, #F59E0B);
        }
        .guide-card .card-icon.pink {
            background: linear-gradient(135deg, #F472B6, #EC4899);
        }
        .guide-card .card-icon.green {
            background: linear-gradient(135deg, #34D399, #10B981);
        }
        .guide-card .card-icon.blue {
            background: linear-gradient(135deg, #60A5FA, #3B82F6);
        }
        .guide-card .card-icon.indigo {
            background: linear-gradient(135deg, #A78BFA, #8B5CF6);
        }

        .guide-card h3 {
            font-size: 1.2rem;
            margin-bottom: 10px;
            font-weight: 700;
        }

        .guide-card p {
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 18px;
            line-height: 1.6;
        }

        .guide-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: var(--transition);
        }

        .guide-card .card-link i {
            font-size: 12px;
            transition: var(--transition);
        }

        .guide-card .card-link:hover {
            color: var(--primary-dark);
            gap: 10px;
        }

        .guide-card .card-img {
            width: 100%;
            height: 160px;
            object-fit: cover;
            border-radius: var(--radius-sm);
            margin-bottom: 20px;
        }

        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .guide-card {
                padding: 24px 20px 20px;
            }
        }

        /* ===== 使用流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-white);
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }

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

        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: var(--radius-full);
            background: var(--primary-bg);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 20px;
            margin-bottom: 18px;
            transition: var(--transition);
        }

        .step-item:hover .step-number {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
        }

        .step-item h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            font-weight: 700;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.6;
        }

        .step-connector {
            display: none;
        }

        @media (min-width: 1025px) {
            .steps-grid {
                position: relative;
            }

            .steps-grid::after {
                content: '';
                position: absolute;
                top: 64px;
                left: calc(12.5% + 30px);
                right: calc(12.5% + 30px);
                height: 2px;
                background: linear-gradient(90deg, var(--primary-light), var(--secondary-light), var(--primary-light));
                z-index: 0;
                opacity: 0.4;
            }

            .step-item {
                z-index: 1;
                background: var(--bg-white);
            }
        }

        @media (max-width: 900px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .step-item {
                padding: 24px 16px;
                display: flex;
                align-items: center;
                gap: 20px;
                text-align: left;
            }

            .step-number {
                margin-bottom: 0;
                flex-shrink: 0;
                width: 44px;
                height: 44px;
                font-size: 17px;
            }

            .step-item h4 {
                margin-bottom: 4px;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 36px 24px;
            text-align: center;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

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

        .stat-number {
            font-size: clamp(2rem, 4vw, 2.8rem);
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 15px;
            color: var(--text-light);
            font-weight: 500;
        }

        .stat-card .stat-icon {
            font-size: 28px;
            color: var(--primary-light);
            margin-bottom: 12px;
        }

        @media (max-width: 900px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-card {
                padding: 24px 16px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
        }

        .faq-item.active {
            border-color: var(--primary-light);
            box-shadow: 0 4px 20px rgba(99, 102, 241, 0.08);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--text);
            transition: var(--transition);
            gap: 16px;
            user-select: none;
        }

        .faq-question:hover {
            color: var(--primary-dark);
        }

        .faq-question i {
            font-size: 14px;
            color: var(--text-lighter);
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
        }

        @media (max-width: 640px) {
            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 50%, #C7D2FE 100%);
            position: relative;
            overflow: hidden;
            padding: 80px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-section h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
            margin-bottom: 14px;
        }

        .cta-section p {
            max-width: 520px;
            margin: 0 auto 32px;
            color: var(--text-light);
            font-size: 1.05rem;
        }

        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 18px 44px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 17px;
            box-shadow: 0 8px 32px rgba(99, 102, 241, 0.35);
            transition: var(--transition);
        }

        .cta-section .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 16px 48px rgba(99, 102, 241, 0.45);
        }

        .cta-section .btn-cta i {
            font-size: 16px;
        }

        @media (max-width: 640px) {
            .cta-section {
                padding: 60px 0;
            }

            .cta-section .btn-cta {
                width: 100%;
                justify-content: center;
                padding: 16px 28px;
                font-size: 16px;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0F172A;
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .nav-logo {
            margin-bottom: 16px;
        }

        .footer-brand .nav-logo .logo-icon {
            background: linear-gradient(135deg, #818CF8, #6366F1);
        }

        .footer-brand .nav-logo .logo-text {
            color: #fff;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 340px;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-full);
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.6);
            font-size: 18px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .footer-col ul li a i {
            font-size: 10px;
            color: rgba(255, 255, 255, 0.2);
            transition: var(--transition);
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-col ul li a:hover i {
            color: var(--primary-light);
            transform: translateX(3px);
        }

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.45);
        }

        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

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

        /* ===== 移动端菜单遮罩 ===== */
        .nav-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.25);
            z-index: 998;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .nav-overlay.show {
            opacity: 1;
            visibility: visible;
        }

        /* ===== 通用工具 ===== */
        .text-center {
            text-align: center;
        }
        .mt-12 {
            margin-top: 12px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mt-40 {
            margin-top: 40px;
        }

        /* ===== 精选文章列表 ===== */
        .article-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .article-card {
            display: flex;
            gap: 20px;
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            align-items: flex-start;
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--primary-light);
        }

        .article-card .art-img {
            width: 120px;
            height: 90px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .article-card .art-body {
            flex: 1;
            min-width: 0;
        }

        .article-card .art-body h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card .art-body p {
            font-size: 13px;
            color: var(--text-light);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }

        .article-card .art-meta {
            font-size: 12px;
            color: var(--text-lighter);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .article-card .art-meta i {
            font-size: 12px;
        }

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

            .article-card {
                padding: 16px;
            }

            .article-card .art-img {
                width: 100px;
                height: 76px;
            }
        }

        @media (max-width: 520px) {
            .article-card {
                flex-direction: column;
            }

            .article-card .art-img {
                width: 100%;
                height: 160px;
            }
        }

        /* ===== 标签 ===== */
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-top: 24px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
        }

        .tag:hover {
            border-color: var(--primary-light);
            color: var(--primary-dark);
            background: var(--primary-bg);
            transform: translateY(-2px);
        }

        .tag i {
            font-size: 12px;
            color: var(--primary-light);
        }

        /* ===== 分隔线 ===== */
        .divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 4px;
            margin: 0 auto 16px;
        }

        .divider.left {
            margin: 0 0 16px;
        }

        /* ===== 动画 ===== */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-up {
            animation: fadeUp 0.6s ease forwards;
        }

        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }
        .delay-4 {
            animation-delay: 0.4s;
        }

        /* ===== 响应式微调 ===== */
        @media (max-width: 1200px) {
            .container {
                max-width: 100%;
            }
        }

        @media (max-width: 480px) {
            .section-header h2 {
                font-size: 1.4rem;
            }
            .section-header p {
                font-size: 14px;
            }
        }