:root {
            --qdmij8-primary: #3d7eff;
            --qdmij8-secondary: #a855f7;
            --qdmij8-bg-dark: #050505;
            --qdmij8-bg-card: #111111;
            --qdmij8-text-main: #e5e7eb;
            --qdmij8-text-muted: #9ca3af;
            --qdmij8-accent: #2dd4bf;
            --qdmij8-border: rgba(255, 255, 255, 0.1);
            --qdmij8-font-mono: 'Fira Code', 'JetBrains Mono', monospace;
        }

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

        body {
            background-color: var(--qdmij8-bg-dark);
            color: var(--qdmij8-text-main);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            line-height: 1.7;
            word-break: break-word;
            overflow-x: hidden;
        }

        /* 布局容器 */
        .qdmij8-container {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

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

        .qdmij8-nav-container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .qdmij8-logo {
            flex-shrink: 0;
            min-width: 0;
        }

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

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

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

        .qdmij8-menu a {
            color: var(--qdmij8-text-muted);
            text-decoration: none;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

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

        /* Hero 区 - 非对称流体布局 */
        .qdmij8-hero {
            padding: 160px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .qdmij8-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .qdmij8-hero-content {
            flex: 1;
            min-width: 320px;
        }

        .qdmij8-hero-visual {
            flex: 1.2;
            min-width: 320px;
            position: relative;
        }

        .qdmij8-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%, #a5a5a5 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            word-break: keep-all;
        }

        .qdmij8-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--qdmij8-text-muted);
            margin-bottom: 40px;
            max-width: 600px;
        }

        /* 代码块视觉效果 */
        .qdmij8-code-window {
            background: #0d0d0d;
            border: 1px solid var(--qdmij8-border);
            border-radius: 12px;
            box-shadow: 0 30px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
            padding: 24px;
            font-family: var(--qdmij8-font-mono);
            font-size: 14px;
            transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
            transition: transform 0.5s ease;
        }

        .qdmij8-code-window:hover {
            transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
        }

        .qdmij8-code-line {
            display: block;
            margin-bottom: 4px;
        }

        .qdmij8-syntax-key { color: var(--qdmij8-secondary); }
        .qdmij8-syntax-val { color: var(--qdmij8-accent); }
        .qdmij8-syntax-comment { color: #6b7280; font-style: italic; }

        /* 核心支柱区块 */
        .qdmij8-pillars {
            padding: 96px 0;
            background: radial-gradient(circle at 50% 0%, rgba(61, 126, 255, 0.05) 0%, transparent 70%);
        }

        .qdmij8-section-label {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(61, 126, 255, 0.1);
            color: var(--qdmij8-primary);
            border-radius: 100px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .qdmij8-pillar-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            margin-top: 48px;
        }

        .qdmij8-pillar-card {
            background: var(--qdmij8-bg-card);
            border: 1px solid var(--qdmij8-border);
            border-radius: 20px;
            padding: 40px;
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            overflow: hidden;
        }

        .qdmij8-pillar-card:hover {
            transform: translateY(-8px);
            border-color: var(--qdmij8-primary);
            box-shadow: 0 20px 40px rgba(0,0,0,0.3);
        }

        .qdmij8-pillar-title {
            font-size: 1.5rem;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .qdmij8-pillar-desc {
            color: var(--qdmij8-text-muted);
            font-size: 1rem;
            margin-bottom: 24px;
        }

        .qdmij8-tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

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

        /* 动态内容区 - 指南 */
        .qdmij8-guide-section {
            padding: 96px 0;
        }

        .qdmij8-asymmetric-row {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            margin-bottom: 96px;
            align-items: center;
        }

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

        .qdmij8-text-block {
            flex: 1;
            min-width: 300px;
        }

        .qdmij8-visual-block {
            flex: 1.2;
            min-width: 300px;
            background: linear-gradient(45deg, #111, #1a1a1a);
            border-radius: 24px;
            padding: 48px;
            position: relative;
        }

        .qdmij8-stat {
            font-size: 3rem;
            font-weight: 800;
            color: var(--qdmij8-primary);
            margin-bottom: 8px;
        }

        /* 页脚 */
        .qdmij8-footer {
            padding: 80px 0 40px;
            border-top: 1px solid var(--qdmij8-border);
            background: #000;
        }

        .qdmij8-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .qdmij8-footer-brand {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.5px;
        }

        .qdmij8-footer-links h4 {
            margin-bottom: 24px;
            font-size: 0.9rem;
            color: #fff;
            text-transform: uppercase;
        }

        .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;
            font-size: 0.9rem;
            transition: color 0.3s;
        }

        .qdmij8-footer-links a:hover {
            color: #fff;
        }

        .qdmij8-copyright {
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.05);
            text-align: center;
            color: #4b5563;
            font-size: 0.85rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .qdmij8-nav-container {
                height: auto;
                padding: 16px;
            }
            .qdmij8-menu {
                margin-top: 16px;
                gap: 12px;
                justify-content: center;
            }
            .qdmij8-hero {
                padding-top: 120px;
            }
            .qdmij8-asymmetric-row {
                gap: 32px;
            }
            .qdmij8-code-window {
                transform: none !important;
            }
        }

        /* 动画增强 */
        @keyframes qdmij8-fadeInUp {
            from { transform: translateY(20px); opacity: 0; }
            to { transform: translateY(0); opacity: 1; }
        }

        .qdmij8-animate {
            animation: qdmij8-fadeInUp 0.8s ease forwards;
        }