:root {
            --fti6a-primary: #FF4D00;
            --fti6a-primary-hover: #E64500;
            --fti6a-accent: #FF8533;
            --fti6a-bg: #FFFFFF;
            --fti6a-bg-alt: #F9FAFB;
            --fti6a-text: #1D1D1F;
            --fti6a-text-muted: #6E6E73;
            --fti6a-max-width: 1100px;
            --fti6a-radius: 16px;
            --fti6a-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            color: var(--fti6a-text);
            background-color: var(--fti6a-bg);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 导航栏 */
        .fti6a-nav-wrapper {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: var(--fti6a-transition);
        }

        .fti6a-navbar {
            max-width: var(--fti6a-max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 64px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

        .fti6a-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .fti6a-logo img {
            height: 32px;
            width: auto;
        }

        .fti6a-nav-links {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            list-style: none;
            min-width: 0;
        }

        .fti6a-nav-links a {
            text-decoration: none;
            color: var(--fti6a-text);
            font-size: 14px;
            font-weight: 500;
            transition: var(--fti6a-transition);
        }

        .fti6a-nav-links a:hover {
            color: var(--fti6a-primary);
        }

        /* Hero 区 - 对角线分割布局 */
        .fti6a-hero {
            padding: 160px 24px 96px;
            background: radial-gradient(circle at 70% 30%, rgba(255, 77, 0, 0.05) 0%, rgba(255, 255, 255, 0) 50%);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .fti6a-hero-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .fti6a-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #FF4D00 0%, #FF8533 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: break-word;
        }

        .fti6a-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            color: var(--fti6a-text-muted);
            margin-bottom: 48px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
            word-break: break-word;
        }

        .fti6a-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            min-width: 0;
        }

        .fti6a-btn-primary {
            display: inline-block;
            padding: 16px 40px;
            background: var(--fti6a-primary);
            color: white;
            text-decoration: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 18px;
            transition: var(--fti6a-transition);
            box-shadow: 0 10px 20px rgba(255, 77, 0, 0.2);
        }

        .fti6a-btn-primary:hover {
            transform: translateY(-3px);
            background: var(--fti6a-primary-hover);
            box-shadow: 0 15px 30px rgba(255, 77, 0, 0.3);
        }

        .fti6a-btn-outline {
            display: inline-block;
            padding: 16px 40px;
            border: 2px solid var(--fti6a-primary);
            color: var(--fti6a-primary);
            text-decoration: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 18px;
            transition: var(--fti6a-transition);
        }

        .fti6a-btn-outline:hover {
            background: rgba(255, 77, 0, 0.05);
            transform: translateY(-2px);
        }

        /* 核心功能区 - 网格卡片 */
        .fti6a-section {
            padding: 96px 24px;
            max-width: var(--fti6a-max-width);
            margin: 0 auto;
        }

        .fti6a-section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .fti6a-section-title {
            font-size: clamp(2rem, 3vw + 0.5rem, 2.8rem);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .fti6a-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .fti6a-card {
            background: var(--fti6a-bg);
            padding: 48px 32px;
            border-radius: var(--fti6a-radius);
            border: 1px solid rgba(0,0,0,0.05);
            transition: var(--fti6a-transition);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .fti6a-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.08);
            border-color: var(--fti6a-primary);
        }

        .fti6a-card-icon {
            width: 56px;
            height: 56px;
            background: rgba(255, 77, 0, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            color: var(--fti6a-primary);
            font-size: 24px;
            font-weight: bold;
        }

        .fti6a-card h3 {
            font-size: 22px;
            margin-bottom: 16px;
        }

        .fti6a-card p {
            color: var(--fti6a-text-muted);
            line-height: 1.8;
            word-break: break-word;
        }

        /* 动态资讯区块 */
        .fti6a-dynamic-section {
            background: var(--fti6a-bg-alt);
            padding: 96px 0;
        }

        .fti6a-article-list {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            min-width: 0;
        }

        .fti6a-article-item {
            flex: 1;
            min-width: 280px;
            background: white;
            padding: 24px;
            border-radius: 12px;
            transition: var(--fti6a-transition);
            text-decoration: none;
            color: inherit;
        }

        .fti6a-article-item:hover {
            box-shadow: 0 10px 20px rgba(0,0,0,0.05);
        }

        .fti6a-article-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(255, 77, 0, 0.1);
            color: var(--fti6a-primary);
            border-radius: 4px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .fti6a-article-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .fti6a-article-date {
            font-size: 14px;
            color: var(--fti6a-text-muted);
        }

        /* 页脚区 */
        .fti6a-footer {
            background: #111;
            color: white;
            padding: 80px 24px 40px;
        }

        .fti6a-footer-container {
            max-width: var(--fti6a-max-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
        }

        .fti6a-footer-brand h2 {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--fti6a-primary);
        }

        .fti6a-footer-brand p {
            color: #999;
            font-size: 14px;
            margin-bottom: 24px;
        }

        .fti6a-footer-links h4 {
            font-size: 16px;
            margin-bottom: 24px;
            color: white;
        }

        .fti6a-footer-links ul {
            list-style: none;
        }

        .fti6a-footer-links li {
            margin-bottom: 12px;
        }

        .fti6a-footer-links a {
            color: #999;
            text-decoration: none;
            font-size: 14px;
            transition: var(--fti6a-transition);
        }

        .fti6a-footer-links a:hover {
            color: var(--fti6a-primary);
        }

        .fti6a-copyright {
            max-width: var(--fti6a-max-width);
            margin: 64px auto 0;
            padding-top: 32px;
            border-top: 1px solid #333;
            text-align: center;
            font-size: 13px;
            color: #666;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .fti6a-navbar {
                height: auto;
                padding: 16px 24px;
            }
            .fti6a-nav-links {
                display: none; /* 简化移动端，实际项目中可加汉堡菜单 */
            }
            .fti6a-hero {
                padding: 120px 24px 64px;
            }
            .fti6a-grid {
                grid-template-columns: 1fr;
            }
            .fti6a-cta-group {
                flex-direction: column;
            }
            .fti6a-btn-primary, .fti6a-btn-outline {
                width: 100%;
                text-align: center;
            }
        }