:root {
            --ztdk-primary: #4285F4;
            --ztdk-success: #34A853;
            --ztdk-warning: #FBBC05;
            --ztdk-danger: #EA4335;
            --ztdk-bg: #0b0e14;
            --ztdk-card-bg: rgba(255, 255, 255, 0.05);
            --ztdk-text-main: #ffffff;
            --ztdk-text-muted: #a0a0a0;
            --ztdk-font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --ztdk-nav-height: 80px;
        }

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

        body {
            font-family: var(--ztdk-font-family);
            background-color: var(--ztdk-bg);
            color: var(--ztdk-text-main);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 动态光迹导航栏 */
        .ztdk-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--ztdk-nav-height);
            background: rgba(11, 14, 20, 0.85);
            backdrop-filter: blur(15px);
            z-index: 1000;
            display: flex;
            align-items: center;
            padding: 0 4%;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .ztdk-nav-container {
            display: flex;
            width: 100%;
            max-width: 1400px;
            margin: 0 auto;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .ztdk-logo {
            flex-shrink: 0;
            height: 40px;
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .ztdk-logo img {
            height: 100%;
            width: auto;
        }

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

        .ztdk-nav-item a {
            color: var(--ztdk-text-muted);
            text-decoration: none;
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            position: relative;
            transition: color 0.3s ease;
            display: block;
            word-break: keep-all;
        }

        .ztdk-nav-item a:hover, .ztdk-nav-item.active a {
            color: var(--ztdk-text-main);
        }

        /* 动态光迹悬停效果 */
        .ztdk-nav-item a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, #4285F4, #EA4335, #FBBC05, #34A853);
            transition: width 0.4s cubic-bezier(0.23, 1, 0.32, 1);
        }

        .ztdk-nav-item a:hover::after, .ztdk-nav-item.active a::after {
            width: 100%;
        }

        /* Hero Section - 独特3D渲染风格 */
        .ztdk-hero {
            padding-top: calc(var(--ztdk-nav-height) + 64px);
            padding-bottom: 96px;
            position: relative;
            overflow: hidden;
            background: radial-gradient(circle at 80% 20%, rgba(66, 133, 244, 0.15) 0%, transparent 40%),
                        radial-gradient(circle at 10% 80%, rgba(52, 168, 83, 0.1) 0%, transparent 40%);
        }

        .ztdk-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 48px;
            width: 100%;
        }

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

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

        .ztdk-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            margin-bottom: 24px;
            background: linear-gradient(135deg, #fff 0%, #a0a0a0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .ztdk-hero-subtitle {
            font-size: clamp(1rem, 1.2vw + 0.5rem, 1.25rem);
            color: var(--ztdk-text-muted);
            margin-bottom: 48px;
            max-width: 600px;
            line-height: 1.8;
        }

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

        .ztdk-btn {
            display: inline-flex;
            align-items: center;
            padding: 16px 32px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .ztdk-btn-primary {
            background: var(--ztdk-primary);
            color: white;
            box-shadow: 0 10px 20px rgba(66, 133, 244, 0.3);
        }

        .ztdk-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(66, 133, 244, 0.5);
        }

        .ztdk-hero-visual {
            flex: 1;
            min-width: 320px;
            position: relative;
        }

        /* 模拟控制台的3D装饰 */
        .ztdk-console-mock {
            background: #1a1c22;
            border-radius: 12px;
            padding: 24px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
            font-family: 'Courier New', Courier, monospace;
            transform: perspective(1000px) rotateY(-15deg) rotateX(10deg);
        }

        .ztdk-console-line {
            margin-bottom: 12px;
            display: flex;
            gap: 10px;
        }

        .ztdk-line-num { color: #4b5263; }
        .ztdk-code-blue { color: #61afef; }
        .ztdk-code-green { color: #98c379; }
        .ztdk-code-purple { color: #c678dd; }

        /* 技术架构层 - 杂志级节奏感 */
        .ztdk-section {
            padding: 96px 0;
            position: relative;
        }

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

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

        .ztdk-arch-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 32px;
        }

        .ztdk-arch-card {
            background: var(--ztdk-card-bg);
            border-radius: 24px;
            padding: 48px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: transform 0.3s ease, border-color 0.3s ease;
            min-width: 0;
            word-break: break-word;
        }

        .ztdk-arch-card:hover {
            transform: translateY(-10px);
            border-color: var(--ztdk-primary);
        }

        .ztdk-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            font-weight: 700;
            background: rgba(66, 133, 244, 0.2);
            color: var(--ztdk-primary);
            margin-bottom: 24px;
        }

        /* 矩阵协同区块 */
        .ztdk-synergy-matrix {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .ztdk-matrix-item {
            flex: 1;
            min-width: 300px;
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, transparent 100%);
            border-radius: 16px;
            padding: 32px;
            border-left: 4px solid var(--ztdk-primary);
        }

        .ztdk-matrix-item:nth-child(2) { border-left-color: var(--ztdk-success); }

        /* 动态内容标记区块 */
        .ztdk-dynamic-section {
            background: #0f1218;
            border-radius: 40px;
            margin: 48px 0;
            padding: 64px;
        }

        /* 页脚 */
        .ztdk-footer {
            padding: 96px 0 48px;
            background: #050608;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

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

        .ztdk-footer-brand h3 {
            font-size: 24px;
            margin-bottom: 16px;
            color: #fff;
        }

        .ztdk-footer-links h4 {
            font-size: 16px;
            margin-bottom: 24px;
            color: var(--ztdk-text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

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

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

        .ztdk-footer-links a {
            color: var(--ztdk-text-muted);
            text-decoration: none;
            transition: color 0.3s ease;
        }

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

        .ztdk-footer-bottom {
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            color: var(--ztdk-text-muted);
            font-size: 14px;
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .ztdk-hero-grid {
                flex-direction: column;
                text-align: center;
            }
            .ztdk-hero-content {
                display: flex;
                flex-direction: column;
                align-items: center;
            }
            .ztdk-btn-group {
                justify-content: center;
            }
            .ztdk-hero-visual {
                width: 100%;
                max-width: 500px;
            }
            .ztdk-console-mock {
                transform: none;
            }
        }

        @media (max-width: 768px) {
            .ztdk-navbar {
                height: auto;
                padding: 16px 20px;
            }
            .ztdk-nav-container {
                flex-direction: column;
                gap: 16px;
            }
            .ztdk-nav-menu {
                justify-content: center;
            }
            .ztdk-container {
                padding: 0 24px;
            }
            .ztdk-section {
                padding: 64px 0;
            }
            .ztdk-arch-grid {
                grid-template-columns: 1fr;
            }
            .ztdk-dynamic-section {
                padding: 32px;
            }
        }

        /* 辅助类 */
        .ztdk-text-gradient {
            background: linear-gradient(90deg, #4285F4, #34A853);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }