:root {
            --r6tl-primary: #FF6C37;
            --r6tl-secondary: #00F2FE;
            --r6tl-dark: #121212;
            --r6tl-light: #F8F9FA;
            --r6tl-gray: #6B6B6B;
            --r6tl-glass: rgba(255, 255, 255, 0.05);
            --r6tl-container-width: 1300px;
            --r6tl-radius: 16px;
            --r6tl-transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--r6tl-dark);
            color: var(--r6tl-light);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 布局容器 */
        .r6tl-container {
            max-width: var(--r6tl-container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏 */
        .r6tl-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            backdrop-filter: blur(20px);
            background: rgba(18, 18, 18, 0.8);
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .r6tl-nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
            flex-wrap: wrap;
        }

        .r6tl-logo {
            flex: 0 0 auto;
            display: flex;
            align-items: center;
        }

        .r6tl-logo img {
            height: 40px;
            width: auto;
        }

        .r6tl-nav-links {
            display: flex;
            list-style: none;
            gap: 20px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .r6tl-nav-links a {
            color: var(--r6tl-light);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            opacity: 0.8;
            transition: var(--r6tl-transition);
            white-space: nowrap;
        }

        .r6tl-nav-links a:hover,
        .r6tl-nav-links a.r6tl-active {
            color: var(--r6tl-primary);
            opacity: 1;
        }

        /* Hero 区块 */
        .r6tl-hero {
            padding: 160px 0 100px;
            background: radial-gradient(circle at top right, rgba(255, 108, 55, 0.1), transparent),
                        radial-gradient(circle at bottom left, rgba(0, 242, 254, 0.05), transparent);
            text-align: center;
            position: relative;
        }

        .r6tl-hero-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .r6tl-badge {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 100px;
            background: rgba(255, 108, 55, 0.1);
            color: var(--r6tl-primary);
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid rgba(255, 108, 55, 0.2);
        }

        .r6tl-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            letter-spacing: -1px;
            white-space: normal;
            word-break: break-word;
        }

        .r6tl-text-gradient {
            background: linear-gradient(90deg, #FFFFFF, var(--r6tl-secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .r6tl-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            color: var(--r6tl-gray);
            margin-bottom: 48px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
            word-break: break-word;
        }

        /* 下载网格 */
        .r6tl-download-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            margin-top: 64px;
        }

        .r6tl-download-card {
            background: var(--r6tl-glass);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--r6tl-radius);
            padding: 48px 32px;
            text-align: left;
            transition: var(--r6tl-transition);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }

        .r6tl-download-card:hover {
            transform: translateY(-10px);
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--r6tl-primary);
        }

        .r6tl-card-icon {
            font-size: 40px;
            margin-bottom: 24px;
            height: 60px;
            width: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 12px;
        }

        .r6tl-card-title {
            font-size: 24px;
            margin-bottom: 16px;
            font-weight: 700;
        }

        .r6tl-card-desc {
            color: var(--r6tl-gray);
            font-size: 16px;
            margin-bottom: 32px;
            word-break: break-word;
        }

        .r6tl-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--r6tl-transition);
            cursor: pointer;
            border: none;
            gap: 10px;
        }

        .r6tl-btn-primary {
            background: var(--r6tl-primary);
            color: white;
        }

        .r6tl-btn-primary:hover {
            background: #ff855a;
            box-shadow: 0 10px 20px rgba(255, 108, 55, 0.3);
        }

        .r6tl-btn-outline {
            background: transparent;
            color: white;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .r6tl-btn-outline:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: white;
        }

        /* 核心特性区 - 矩阵布局 */
        .r6tl-matrix-section {
            padding: 100px 0;
            background: #0a0a0a;
        }

        .r6tl-section-header {
            margin-bottom: 64px;
            text-align: center;
        }

        .r6tl-matrix-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .r6tl-matrix-item {
            flex: 1;
            min-width: 320px;
            background: #1a1a1a;
            padding: 40px;
            border-radius: var(--r6tl-radius);
            border-bottom: 4px solid var(--r6tl-primary);
        }

        .r6tl-matrix-stage {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--r6tl-secondary);
            margin-bottom: 12px;
            display: block;
        }

        .r6tl-matrix-method {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 24px;
        }

        .r6tl-tool-list {
            list-style: none;
        }

        .r6tl-tool-item {
            margin-bottom: 20px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .r6tl-tool-item:last-child {
            border-bottom: none;
        }

        .r6tl-tool-name {
            display: block;
            font-weight: 600;
            color: var(--r6tl-light);
            margin-bottom: 4px;
        }

        .r6tl-tool-desc {
            font-size: 14px;
            color: var(--r6tl-gray);
            word-break: break-word;
        }

        /* 动态资讯区块 */
        .r6tl-news-section {
            padding: 100px 0;
        }

        .r6tl-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .r6tl-news-card {
            background: var(--r6tl-glass);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--r6tl-transition);
        }

        .r6tl-news-card:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        .r6tl-news-content {
            padding: 24px;
        }

        .r6tl-news-tag {
            font-size: 12px;
            color: var(--r6tl-primary);
            font-weight: 600;
            margin-bottom: 8px;
            display: block;
        }

        .r6tl-news-title {
            font-size: 18px;
            margin-bottom: 12px;
            word-break: break-word;
        }

        /* 页脚 */
        .r6tl-footer {
            padding: 80px 0 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            background: #050505;
        }

        .r6tl-footer-top {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-bottom: 60px;
            gap: 40px;
        }

        .r6tl-footer-brand {
            flex: 0 0 300px;
            min-width: 0;
        }

        .r6tl-footer-name {
            font-size: 24px;
            font-weight: 800;
            color: var(--r6tl-light);
            margin-bottom: 20px;
        }

        .r6tl-footer-links-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 60px;
            min-width: 0;
        }

        .r6tl-footer-col {
            min-width: 150px;
        }

        .r6tl-footer-col h4 {
            margin-bottom: 24px;
            font-size: 16px;
        }

        .r6tl-footer-col ul {
            list-style: none;
        }

        .r6tl-footer-col ul li {
            margin-bottom: 12px;
        }

        .r6tl-footer-col ul li a {
            color: var(--r6tl-gray);
            text-decoration: none;
            transition: var(--r6tl-transition);
            font-size: 14px;
        }

        .r6tl-footer-col ul li a:hover {
            color: var(--r6tl-primary);
        }

        .r6tl-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--r6tl-gray);
            font-size: 14px;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .r6tl-nav-links {
                display: none; /* 简化移动端，实际开发中应使用汉堡菜单 */
            }
            .r6tl-hero {
                padding: 120px 0 60px;
            }
            .r6tl-matrix-item {
                min-width: 100%;
            }
        }