:root {
            --qdmij8-primary: #00e5ff;
            --qdmij8-secondary: #7000ff;
            --qdmij8-bg-dark: #050505;
            --qdmij8-bg-card: #0f0f0f;
            --qdmij8-text-main: #ffffff;
            --qdmij8-text-dim: #a0a0a0;
            --qdmij8-border: rgba(255, 255, 255, 0.1);
            --qdmij8-font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        }

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

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

        /* 导航栏样式 */
        .qdmij8-nav-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(5, 5, 5, 0.8);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--qdmij8-border);
        }

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

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

        .qdmij8-logo img {
            height: 32px;
            width: auto;
            display: block;
        }

        .qdmij8-menu {
            display: flex;
            gap: 20px;
            list-style: none;
            flex-wrap: wrap;
            min-width: 0;
        }

        .qdmij8-menu li a {
            text-decoration: none;
            color: var(--qdmij8-text-dim);
            font-size: 14px;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

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

        /* 主容器 */
        .qdmij8-main-wrapper {
            max-width: 1400px;
            margin: 0 auto;
            padding: 120px 24px 64px;
        }

        /* Hero下载区 */
        .qdmij8-hero {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 64px 0;
            position: relative;
        }

        .qdmij8-hero-badge {
            background: linear-gradient(90deg, var(--qdmij8-primary), var(--qdmij8-secondary));
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: bold;
            margin-bottom: 24px;
            letter-spacing: 1px;
        }

        .qdmij8-hero h1 {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            margin-bottom: 24px;
            font-weight: 800;
            background: linear-gradient(to bottom, #fff 40%, #888);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: keep-all;
        }

        .qdmij8-hero p {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--qdmij8-text-dim);
            max-width: 800px;
            margin-bottom: 48px;
        }

        /* 下载卡片组 */
        .qdmij8-download-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
            width: 100%;
            margin-bottom: 96px;
        }

        .qdmij8-download-card {
            background: var(--qdmij8-bg-card);
            border: 1px solid var(--qdmij8-border);
            border-radius: 24px;
            padding: 40px;
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            min-width: 0;
        }

        .qdmij8-download-card:hover {
            transform: translateY(-10px);
            border-color: var(--qdmij8-primary);
            box-shadow: 0 20px 40px rgba(0, 229, 255, 0.1);
        }

        .qdmij8-os-icon {
            width: 64px;
            height: 64px;
            margin-bottom: 24px;
            fill: var(--qdmij8-primary);
        }

        .qdmij8-download-card h3 {
            font-size: 24px;
            margin-bottom: 12px;
        }

        .qdmij8-version-tag {
            font-size: 14px;
            color: var(--qdmij8-text-dim);
            margin-bottom: 32px;
        }

        .qdmij8-btn-download {
            background: #fff;
            color: #000;
            padding: 16px 32px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: bold;
            width: 100%;
            transition: transform 0.2s;
        }

        .qdmij8-btn-download:hover {
            transform: scale(1.02);
            background: var(--qdmij8-primary);
        }

        /* 创新核心区 - 非对称布局 */
        .qdmij8-innovation-section {
            padding: 96px 0;
        }

        .qdmij8-innovation-grid {
            display: flex;
            flex-direction: column;
            gap: 120px;
        }

        .qdmij8-innovation-item {
            display: flex;
            align-items: center;
            gap: 64px;
            flex-wrap: wrap;
        }

        .qdmij8-innovation-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .qdmij8-innovation-content {
            flex: 1;
            min-width: 300px;
        }

        .qdmij8-innovation-visual {
            flex: 1.2;
            min-width: 300px;
            background: linear-gradient(135deg, #111, #1a1a1a);
            border: 1px solid var(--qdmij8-border);
            border-radius: 24px;
            padding: 32px;
            position: relative;
            overflow: hidden;
        }

        .qdmij8-pillar-id {
            color: var(--qdmij8-primary);
            font-weight: bold;
            font-family: monospace;
            margin-bottom: 16px;
            display: block;
        }

        .qdmij8-innovation-content h2 {
            font-size: clamp(1.5rem, 3vw, 2.5rem);
            margin-bottom: 24px;
            line-height: 1.2;
        }

        .qdmij8-tech-depth {
            color: var(--qdmij8-text-dim);
            margin-bottom: 24px;
            font-size: 1.1rem;
        }

        .qdmij8-tags {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .qdmij8-tag {
            background: rgba(255,255,255,0.05);
            padding: 6px 14px;
            border-radius: 6px;
            font-size: 13px;
            border: 1px solid var(--qdmij8-border);
        }

        .qdmij8-metric {
            border-left: 3px solid var(--qdmij8-secondary);
            padding-left: 20px;
            font-style: italic;
            color: var(--qdmij8-primary);
        }

        /* 伪代码视觉块 */
        .qdmij8-code-visual {
            font-family: 'Fira Code', monospace;
            font-size: 14px;
            color: #888;
        }

        .qdmij8-code-highlight {
            color: var(--qdmij8-primary);
        }

        /* 页脚 */
        .qdmij8-footer {
            border-top: 1px solid var(--qdmij8-border);
            padding: 64px 24px;
            text-align: center;
            margin-top: 96px;
        }

        .qdmij8-footer-brand {
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 16px;
            color: #fff;
        }

        .qdmij8-footer-links {
            display: flex;
            justify-content: center;
            gap: 32px;
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

        .qdmij8-footer-links a {
            color: var(--qdmij8-text-dim);
            text-decoration: none;
            font-size: 14px;
        }

        .qdmij8-copyright {
            color: #444;
            font-size: 12px;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .qdmij8-nav-inner {
                height: auto;
                padding: 16px;
            }
            .qdmij8-menu {
                margin-top: 16px;
                gap: 12px;
                justify-content: center;
            }
            .qdmij8-hero h1 {
                font-size: 2.5rem;
            }
            .qdmij8-innovation-item {
                gap: 32px;
            }
        }

        /* JSON-LD 结构化数据辅助类 */
        .qdmij8-hidden { display: none; }