:root {
            --f8a5-primary: #ff6600;
            --f8a5-primary-dark: #e65c00;
            --f8a5-secondary: #2b3a4a;
            --f8a5-bg: #f8f9fb;
            --f8a5-text: #333333;
            --f8a5-text-light: #666666;
            --f8a5-white: #ffffff;
            --f8a5-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --f8a5-radius: 16px;
            --f8a5-gap: 8px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--f8a5-bg);
            color: var(--f8a5-text);
            line-height: 1.8;
            overflow-x: hidden;
            word-break: keep-all;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

        ul {
            list-style: none;
        }

        .f8a5-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏 */
        .f8a5-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(15px);
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

        .f8a5-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .f8a5-logo {
            flex: 0 0 auto;
            min-width: 0;
            display: flex;
            align-items: center;
        }

        .f8a5-logo img {
            height: 40px;
            width: auto;
        }

        .f8a5-menu {
            display: flex;
            flex-wrap: wrap;
            min-width: 0;
        }

        .f8a5-menu-item {
            min-width: 0;
            margin-left: 24px;
        }

        .f8a5-menu-link {
            font-size: 1rem;
            font-weight: 500;
            color: var(--f8a5-secondary);
            padding: 8px 0;
            position: relative;
        }

        .f8a5-menu-link:hover, .f8a5-menu-link.f8a5-active {
            color: var(--f8a5-primary);
        }

        .f8a5-menu-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--f8a5-primary);
            transition: width 0.3s ease;
        }

        .f8a5-menu-link:hover::after, .f8a5-menu-link.f8a5-active::after {
            width: 100%;
        }

        /* Hero 区块 - 独特非对称布局 */
        .f8a5-hero {
            padding: 160px 0 80px;
            background: linear-gradient(135deg, #fff 0%, #f0f4f8 100%);
            position: relative;
            overflow: hidden;
        }

        .f8a5-hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255,102,0,0.1) 0%, transparent 70%);
            border-radius: 50%;
        }

        .f8a5-hero-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            min-width: 0;
        }

        .f8a5-hero-text {
            flex: 1 1 500px;
            min-width: 0;
            padding-right: 48px;
            word-break: break-word;
        }

        .f8a5-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            color: var(--f8a5-secondary);
            margin-bottom: 24px;
            font-weight: 800;
        }

        .f8a5-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--f8a5-text-light);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .f8a5-hero-visual {
            flex: 1 1 400px;
            min-width: 0;
            display: flex;
            justify-content: center;
            position: relative;
        }

        /* CSS实现的云端同步视觉元素 */
        .f8a5-sync-sphere {
            width: 280px;
            height: 280px;
            background: var(--f8a5-white);
            border-radius: 50%;
            box-shadow: var(--f8a5-shadow);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            animation: f8a5-float 6s infinite ease-in-out;
        }

        .f8a5-sync-core {
            width: 120px;
            height: 120px;
            background: var(--f8a5-primary);
            border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
            animation: f8a5-morph 8s infinite alternate;
        }

        .f8a5-data-orbit {
            position: absolute;
            width: 100%;
            height: 100%;
            border: 2px dashed rgba(255,102,0,0.2);
            border-radius: 50%;
            animation: f8a5-rotate 20s linear infinite;
        }

        /* 核心设置卡片 */
        .f8a5-section {
            padding: 80px 0;
            word-break: break-word;
        }

        .f8a5-section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 64px;
            color: var(--f8a5-secondary);
        }

        .f8a5-sync-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .f8a5-card {
            background: var(--f8a5-white);
            padding: 40px;
            border-radius: var(--f8a5-radius);
            box-shadow: var(--f8a5-shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .f8a5-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.12);
        }

        .f8a5-card-icon {
            width: 60px;
            height: 60px;
            background: rgba(255,102,0,0.1);
            border-radius: 12px;
            margin-bottom: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--f8a5-primary);
        }

        .f8a5-card-h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--f8a5-secondary);
        }

        .f8a5-card-p {
            color: var(--f8a5-text-light);
            font-size: 1rem;
            line-height: 1.7;
        }

        /* 资讯区块标记 */
        .f8a5-news-section {
            background-color: var(--f8a5-secondary);
            color: var(--f8a5-white);
            padding: 80px 0;
        }

        .f8a5-news-section .f8a5-section-title {
            color: var(--f8a5-white);
        }

        .f8a5-news-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            min-width: 0;
        }

        .f8a5-news-item {
            flex: 1 1 300px;
            min-width: 0;
            background: rgba(255,255,255,0.05);
            padding: 24px;
            border-radius: 12px;
            border-left: 4px solid var(--f8a5-primary);
        }

        /* 底部 */
        .f8a5-footer {
            background: #1a222c;
            color: #a0aec0;
            padding: 80px 0 40px;
        }

        .f8a5-footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            min-width: 0;
        }

        .f8a5-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
            margin-bottom: 40px;
        }

        .f8a5-footer-name {
            font-size: 1.5rem;
            color: var(--f8a5-white);
            margin-bottom: 16px;
            font-weight: bold;
        }

        .f8a5-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            flex: 2 1 600px;
            min-width: 0;
        }

        .f8a5-footer-group {
            min-width: 140px;
        }

        .f8a5-footer-h4 {
            color: var(--f8a5-white);
            margin-bottom: 24px;
            font-size: 1.1rem;
        }

        .f8a5-footer-li {
            margin-bottom: 12px;
        }

        .f8a5-footer-a:hover {
            color: var(--f8a5-primary);
        }

        .f8a5-copyright {
            text-align: center;
            margin-top: 60px;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 0.9rem;
        }

        /* 动画 */
        @keyframes f8a5-float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-20px); }
        }

        @keyframes f8a5-morph {
            0% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
            100% { border-radius: 50% 50% 20% 80% / 25% 80% 20% 75%; }
        }

        @keyframes f8a5-rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        /* 响应式 */
        @media (max-width: 768px) {
            .f8a5-nav-wrapper { height: auto; padding: 16px 0; }
            .f8a5-menu { width: 100%; justify-content: center; margin-top: 16px; }
            .f8a5-menu-item { margin: 8px 12px; }
            .f8a5-hero { padding-top: 180px; text-align: center; }
            .f8a5-hero-text { padding-right: 0; margin-bottom: 60px; }
            .f8a5-hero-visual { width: 100%; }
            .f8a5-sync-sphere { width: 220px; height: 220px; }
            .f8a5-footer-links { gap: 24px; }
        }

        /* 按钮样式 */
        .f8a5-btn {
            display: inline-block;
            padding: 14px 32px;
            background: var(--f8a5-primary);
            color: var(--f8a5-white);
            border-radius: 30px;
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(255,102,0,0.3);
            cursor: pointer;
        }

        .f8a5-btn:hover {
            background: var(--f8a5-primary-dark);
            transform: scale(1.05);
        }