:root {
            --zfrc1y-primary: #6366F1;
            --zfrc1y-primary-dark: #4F46E5;
            --zfrc1y-accent: #F59E0B;
            --zfrc1y-text: #1E293B;
            --zfrc1y-text-light: #64748B;
            --zfrc1y-bg: #F8FAFC;
            --zfrc1y-white: #FFFFFF;
            --zfrc1y-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.1);
            --zfrc1y-radius: 16px;
            --zfrc1y-gap: 32px;
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--zfrc1y-bg);
            color: var(--zfrc1y-text);
            line-height: 1.7;
            word-break: break-word;
            overflow-x: hidden;
        }

        /* 布局容器 */
        .zfrc1y-container {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏 */
        .zfrc1y-nav-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .zfrc1y-nav-container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            min-width: 0;
        }

        .zfrc1y-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .zfrc1y-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .zfrc1y-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            list-style: none;
            min-width: 0;
        }

        .zfrc1y-menu li {
            min-width: 0;
        }

        .zfrc1y-menu a {
            text-decoration: none;
            color: var(--zfrc1y-text);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s;
            white-space: nowrap;
        }

        .zfrc1y-menu a:hover, .zfrc1y-menu a.zfrc1y-active {
            color: var(--zfrc1y-primary);
        }

        /* Hero 区域 - 教程页独特设计 */
        .zfrc1y-hero {
            padding: 160px 0 80px;
            background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 100%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .zfrc1y-hero::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: 0;
            width: 100%;
            height: 100px;
            background: var(--zfrc1y-bg);
            border-radius: 50% / 100% 100% 0 0;
        }

        .zfrc1y-hero-title {
            font-size: clamp(2rem, 5vw + 1rem, 3.5rem);
            line-height: 1.2;
            color: #1E1B4B;
            margin-bottom: 24px;
            font-weight: 800;
        }

        .zfrc1y-hero-subtitle {
            font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
            color: var(--zfrc1y-text-light);
            max-width: 800px;
            margin: 0 auto 40px;
        }

        /* 内容板块通用 */
        .zfrc1y-section {
            padding: 96px 0;
        }

        .zfrc1y-section-title {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            margin-bottom: 48px;
            text-align: center;
            position: relative;
            padding-bottom: 16px;
        }

        .zfrc1y-section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--zfrc1y-primary);
            border-radius: 2px;
        }

        /* 核心步骤卡片布局 */
        .zfrc1y-grid-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--zfrc1y-gap);
        }

        .zfrc1y-step-card {
            background: var(--zfrc1y-white);
            padding: 40px;
            border-radius: var(--zfrc1y-radius);
            box-shadow: var(--zfrc1y-shadow);
            transition: transform 0.3s ease;
            min-width: 0;
        }

        .zfrc1y-step-card:hover {
            transform: translateY(-8px);
        }

        .zfrc1y-step-num {
            font-size: 3rem;
            font-weight: 900;
            color: rgba(99, 102, 241, 0.1);
            margin-bottom: -20px;
            display: block;
        }

        .zfrc1y-step-card h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--zfrc1y-primary);
        }

        /* 解决方案区域 - 独特侧边对齐布局 */
        .zfrc1y-solutions {
            background: #111827;
            color: #F3F4F6;
        }

        .zfrc1y-solutions .zfrc1y-section-title {
            color: #F3F4F6;
        }

        .zfrc1y-solution-item {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            margin-bottom: 64px;
            align-items: center;
        }

        .zfrc1y-solution-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .zfrc1y-solution-content {
            flex: 1;
            min-width: 300px;
        }

        .zfrc1y-solution-badge {
            display: inline-block;
            padding: 6px 16px;
            background: var(--zfrc1y-primary);
            border-radius: 30px;
            font-size: 0.85rem;
            margin-bottom: 20px;
            font-weight: 600;
        }

        .zfrc1y-solution-title {
            font-size: 1.75rem;
            margin-bottom: 20px;
        }

        .zfrc1y-solution-detail {
            font-size: 1.1rem;
            color: #9CA3AF;
            margin-bottom: 24px;
        }

        .zfrc1y-tool-tag {
            color: var(--zfrc1y-accent);
            font-weight: 700;
            border: 1px solid var(--zfrc1y-accent);
            padding: 4px 12px;
            border-radius: 4px;
        }

        /* 动态内容区块 */
        .zfrc1y-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        /* 页脚 */
        .zfrc1y-footer {
            background: #F1F5F9;
            padding: 80px 0 40px;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .zfrc1y-footer-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
            margin-bottom: 48px;
        }

        .zfrc1y-footer-brand {
            flex: 1;
            min-width: 280px;
        }

        .zfrc1y-footer-brand h2 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--zfrc1y-primary);
        }

        .zfrc1y-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
        }

        .zfrc1y-footer-col h4 {
            margin-bottom: 24px;
            font-size: 1.1rem;
        }

        .zfrc1y-footer-col ul {
            list-style: none;
        }

        .zfrc1y-footer-col li {
            margin-bottom: 12px;
        }

        .zfrc1y-footer-col a {
            text-decoration: none;
            color: var(--zfrc1y-text-light);
            transition: color 0.3s;
        }

        .zfrc1y-footer-col a:hover {
            color: var(--zfrc1y-primary);
        }

        .zfrc1y-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid rgba(0,0,0,0.1);
            color: var(--zfrc1y-text-light);
            font-size: 0.9rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .zfrc1y-menu {
                display: none; /* 简化处理，实际开发可加汉堡菜单 */
            }
            .zfrc1y-hero {
                padding: 120px 0 60px;
            }
            .zfrc1y-solution-item {
                text-align: center;
            }
        }