:root {
            --ztdk-chrome-blue: #4285F4;
            --ztdk-chrome-red: #EA4335;
            --ztdk-chrome-yellow: #FBBC05;
            --ztdk-chrome-green: #34A853;
            --ztdk-text-primary: #202124;
            --ztdk-text-secondary: #5f6368;
            --ztdk-bg-light: #ffffff;
            --ztdk-bg-gray: #f8f9fa;
            --ztdk-transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
            color: var(--ztdk-text-primary);
            background-color: var(--ztdk-bg-light);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
            overflow-wrap: break-word;
        }

        /* 导航栏设计 */
        .ztdk-navbar {
            position: fixed;
            top: 24px;
            left: 50%;
            transform: translateX(-50%);
            width: 94vw;
            max-width: 1400px;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-radius: 100px;
            z-index: 1000;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 12px 32px;
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .ztdk-logo {
            display: flex;
            align-items: center;
            flex-shrink: 0;
        }

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

        .ztdk-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 8px;
            min-width: 0;
        }

        .ztdk-nav-item a {
            text-decoration: none;
            color: var(--ztdk-text-secondary);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 50px;
            transition: var(--ztdk-transition);
            position: relative;
            display: block;
        }

        /* 动态光迹悬停效果 */
        .ztdk-nav-item a:hover {
            color: var(--ztdk-chrome-blue);
            background: rgba(66, 133, 244, 0.05);
        }

        .ztdk-nav-item a.ztdk-active {
            color: #fff;
            background: var(--ztdk-chrome-blue);
        }

        .ztdk-nav-item a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--ztdk-chrome-blue), var(--ztdk-chrome-red), var(--ztdk-chrome-yellow), var(--ztdk-chrome-green));
            transition: var(--ztdk-transition);
            transform: translateX(-50%);
        }

        .ztdk-nav-item a:hover::after {
            width: 60%;
        }

        /* Hero 区域 - 杂志级对角线布局 */
        .ztdk-hero {
            position: relative;
            padding-top: 180px;
            padding-bottom: 120px;
            overflow: hidden;
            background: radial-gradient(circle at 90% 10%, rgba(66, 133, 244, 0.05) 0%, transparent 40%),
                        radial-gradient(circle at 10% 90%, rgba(52, 168, 83, 0.05) 0%, transparent 40%);
        }

        .ztdk-container {
            width: 90vw;
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
        }

        .ztdk-hero-wrapper {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

        .ztdk-hero-content {
            flex: 1;
            min-width: 320px;
        }

        .ztdk-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, #202124 0%, #5f6368 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .ztdk-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--ztdk-text-secondary);
            margin-bottom: 48px;
            max-width: 600px;
            line-height: 1.8;
        }

        .ztdk-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .ztdk-btn-primary {
            background: var(--ztdk-chrome-blue);
            color: #fff;
            padding: 18px 42px;
            border-radius: 100px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            box-shadow: 0 10px 20px rgba(66, 133, 244, 0.3);
            transition: var(--ztdk-transition);
        }

        .ztdk-btn-primary:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(66, 133, 244, 0.4);
        }

        /* 3D 渲染风格装饰元素 */
        .ztdk-hero-visual {
            flex: 1;
            min-width: 320px;
            position: relative;
            height: 500px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .ztdk-abstract-shape {
            position: absolute;
            width: 400px;
            height: 400px;
            background: linear-gradient(45deg, var(--ztdk-chrome-blue), var(--ztdk-chrome-green));
            border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
            filter: blur(80px);
            opacity: 0.2;
            animation: morph 15s ease-in-out infinite;
        }

        @keyframes morph {
            0% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
            50% { border-radius: 50% 50% 33% 67% / 55% 27% 73% 45%; }
            100% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
        }

        .ztdk-floating-card {
            background: rgba(255, 255, 255, 0.9);
            border: 1px solid rgba(255, 255, 255, 0.5);
            backdrop-filter: blur(10px);
            border-radius: 24px;
            padding: 32px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
            position: relative;
            z-index: 2;
            width: 100%;
            max-width: 400px;
        }

        /* 技术架构板块 */
        .ztdk-section {
            padding: 96px 0;
        }

        .ztdk-section-title {
            text-align: center;
            margin-bottom: 64px;
        }

        .ztdk-section-title h2 {
            font-size: clamp(2rem, 3vw, 3rem);
            margin-bottom: 16px;
        }

        .ztdk-tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 32px;
        }

        .ztdk-tech-card {
            background: var(--ztdk-bg-gray);
            border-radius: 24px;
            padding: 48px;
            transition: var(--ztdk-transition);
            border: 1px solid transparent;
        }

        .ztdk-tech-card:hover {
            background: #fff;
            border-color: var(--ztdk-chrome-blue);
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .ztdk-tech-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(66, 133, 244, 0.1);
            color: var(--ztdk-chrome-blue);
            border-radius: 4px;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 24px;
            text-transform: uppercase;
        }

        .ztdk-tech-card h3 {
            font-size: 24px;
            margin-bottom: 16px;
        }

        /* 同步生态矩阵 */
        .ztdk-synergy-matrix {
            background: var(--ztdk-text-primary);
            color: #fff;
            border-radius: 40px;
            padding: 80px;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .ztdk-synergy-item {
            flex: 1;
            min-width: 280px;
        }

        .ztdk-synergy-level {
            color: var(--ztdk-chrome-green);
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 12px;
            display: block;
        }

        .ztdk-synergy-item h4 {
            font-size: 28px;
            margin-bottom: 16px;
        }

        .ztdk-synergy-item p {
            color: #9aa0a6;
            font-size: 16px;
            line-height: 1.7;
        }

        /* 动态内容区块 */
        .ztdk-dynamic-content {
            background: #fff;
        }

        .ztdk-article-list {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .ztdk-article-item {
            flex: 1;
            min-width: 300px;
            border-bottom: 1px solid #eee;
            padding-bottom: 24px;
        }

        /* 页脚设计 */
        .ztdk-footer {
            background: var(--ztdk-bg-gray);
            padding: 80px 0 40px;
            margin-top: 64px;
        }

        .ztdk-footer-brand {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 32px;
            color: var(--ztdk-text-primary);
        }

        .ztdk-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .ztdk-footer-column h5 {
            margin-bottom: 24px;
            font-size: 16px;
        }

        .ztdk-footer-column ul {
            list-style: none;
        }

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

        .ztdk-footer-column ul li a {
            text-decoration: none;
            color: var(--ztdk-text-secondary);
            transition: var(--ztdk-transition);
        }

        .ztdk-footer-column ul li a:hover {
            color: var(--ztdk-chrome-blue);
        }

        .ztdk-copyright {
            padding-top: 32px;
            border-top: 1px solid #dadce0;
            text-align: center;
            color: var(--ztdk-text-secondary);
            font-size: 14px;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .ztdk-navbar {
                border-radius: 20px;
                padding: 12px 20px;
            }
            .ztdk-nav-menu {
                display: none; /* 简化演示，实际可做汉堡菜单 */
            }
        }

        @media (max-width: 768px) {
            .ztdk-hero {
                padding-top: 120px;
            }
            .ztdk-hero-visual {
                height: 300px;
            }
            .ztdk-synergy-matrix {
                padding: 40px;
            }
        }