:root {
            --qdmij8-primary: #3d7eff;
            --qdmij8-secondary: #0ea5e9;
            --qdmij8-accent: #6366f1;
            --qdmij8-bg: #050505;
            --qdmij8-card-bg: #111111;
            --qdmij8-text: #f8fafc;
            --qdmij8-text-muted: #94a3b8;
            --qdmij8-border: rgba(255, 255, 255, 0.1);
            --qdmij8-glass: rgba(17, 17, 17, 0.8);
            --qdmij8-radius: 16px;
            --qdmij8-font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        }

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

        body {
            background-color: var(--qdmij8-bg);
            color: var(--qdmij8-text);
            font-family: var(--qdmij8-font-main);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* 导航栏设计 */
        .qdmij8-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--qdmij8-glass);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--qdmij8-border);
        }

        .qdmij8-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .qdmij8-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .qdmij8-logo img {
            height: 32px;
            width: auto;
            border-radius: 4px;
        }

        .qdmij8-nav-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            list-style: none;
            min-width: 0;
        }

        .qdmij8-nav-menu li {
            min-width: 0;
        }

        .qdmij8-nav-menu a {
            color: var(--qdmij8-text-muted);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

        .qdmij8-nav-menu a:hover, .qdmij8-nav-menu a.active {
            color: var(--qdmij8-primary);
        }

        /* 独特Hero区：对角线分割与流体排版 */
        .qdmij8-hero {
            position: relative;
            padding: 160px 24px 100px;
            min-height: 80vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: radial-gradient(circle at 20% 30%, rgba(61, 126, 255, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 80% 70%, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
            overflow: hidden;
        }

        .qdmij8-hero-inner {
            max-width: 1100px;
            width: 100%;
            text-align: center;
            z-index: 2;
        }

        .qdmij8-hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(61, 126, 255, 0.1);
            border: 1px solid var(--qdmij8-primary);
            color: var(--qdmij8-primary);
            border-radius: 100px;
            font-size: 0.85rem;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .qdmij8-hero h1 {
            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%, #94a3b8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: break-word;
        }

        .qdmij8-hero p {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--qdmij8-text-muted);
            max-width: 800px;
            margin: 0 auto 40px;
            line-height: 1.6;
        }

        /* 非对称流体布局区块 */
        .qdmij8-section {
            padding: 96px 24px;
            max-width: 1100px;
            margin: 0 auto;
        }

        .qdmij8-asymmetric-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 48px;
            align-items: center;
        }

        .qdmij8-feature-content {
            min-width: 0;
            word-break: break-word;
        }

        .qdmij8-feature-content h2 {
            font-size: clamp(2rem, 3vw + 0.5rem, 2.8rem);
            margin-bottom: 24px;
            line-height: 1.2;
        }

        .qdmij8-feature-card {
            background: var(--qdmij8-card-bg);
            border: 1px solid var(--qdmij8-border);
            border-radius: var(--qdmij8-radius);
            padding: 32px;
            transition: transform 0.3s ease, border-color 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .qdmij8-feature-card:hover {
            transform: translateY(-8px);
            border-color: var(--qdmij8-primary);
        }

        .qdmij8-card-icon {
            font-size: 2rem;
            margin-bottom: 20px;
            color: var(--qdmij8-primary);
        }

        .qdmij8-tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 16px;
        }

        .qdmij8-tag {
            font-size: 0.75rem;
            padding: 4px 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--qdmij8-border);
            border-radius: 4px;
            color: var(--qdmij8-text-muted);
        }

        /* 核心创新支柱展示 */
        .qdmij8-pillars {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            margin-top: 64px;
        }

        .qdmij8-pillar-item {
            background: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 100%);
            border-radius: var(--qdmij8-radius);
            padding: 40px;
            border: 1px solid var(--qdmij8-border);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .qdmij8-pillar-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--qdmij8-primary);
        }

        .qdmij8-pillar-metric {
            font-size: 0.9rem;
            color: var(--qdmij8-secondary);
            font-weight: 600;
            margin-top: 24px;
            padding-top: 16px;
            border-top: 1px solid var(--qdmij8-border);
        }

        /* 数据流模拟视觉效果 */
        .qdmij8-security-flow {
            margin: 64px 0;
            padding: 48px;
            background: #0a0a0a;
            border-radius: 24px;
            border-left: 4px solid var(--qdmij8-primary);
        }

        .qdmij8-code-block {
            font-family: 'Courier New', Courier, monospace;
            background: #000;
            padding: 20px;
            border-radius: 8px;
            color: #10b981;
            font-size: 0.9rem;
            overflow-x: auto;
            margin-bottom: 24px;
        }

        /* 页脚设计 */
        .qdmij8-footer {
            padding: 80px 24px 40px;
            border-top: 1px solid var(--qdmij8-border);
            background: #080808;
        }

        .qdmij8-footer-grid {
            max-width: 1100px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
        }

        .qdmij8-footer-brand h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: #fff;
        }

        .qdmij8-footer-links h4 {
            margin-bottom: 20px;
            font-size: 1rem;
            color: #fff;
        }

        .qdmij8-footer-links ul {
            list-style: none;
        }

        .qdmij8-footer-links li {
            margin-bottom: 12px;
        }

        .qdmij8-footer-links a {
            color: var(--qdmij8-text-muted);
            text-decoration: none;
            transition: color 0.3s;
        }

        .qdmij8-footer-links a:hover {
            color: var(--qdmij8-primary);
        }

        .qdmij8-copyright {
            text-align: center;
            margin-top: 64px;
            color: var(--qdmij8-text-muted);
            font-size: 0.85rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .qdmij8-nav-menu {
                display: none; /* 简化移动端，实际开发中应使用汉堡菜单 */
            }
            .qdmij8-hero h1 {
                font-size: 2.8rem;
            }
            .qdmij8-asymmetric-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 动画增强 */
        .qdmij8-feature-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
            transition: 0.5s;
        }

        .qdmij8-feature-card:hover::after {
            left: 100%;
        }