:root {
            --mldow-primary: #3b82f6;
            --mldow-secondary: #1e293b;
            --mldow-accent: #10b981;
            --mldow-bg: #f8fafc;
            --mldow-text: #334155;
            --mldow-light-text: #94a3b8;
            --mldow-card-bg: #ffffff;
            --mldow-spacing-base: 8px;
            --mldow-radius: 16px;
            --mldow-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
            background-color: var(--mldow-bg);
            color: var(--mldow-text);
            line-height: 1.7;
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* 导航栏设计 */
        .mldow-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            padding: calc(var(--mldow-spacing-base) * 2) 0;
        }

        .mldow-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 5%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

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

        .mldow-logo img {
            height: 42px;
            width: auto;
            display: block;
        }

        .mldow-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
            min-width: 0;
        }

        .mldow-nav-link {
            text-decoration: none;
            color: var(--mldow-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            white-space: nowrap;
        }

        .mldow-nav-link:hover {
            color: var(--mldow-primary);
        }

        .mldow-nav-link.active {
            color: var(--mldow-primary);
            position: relative;
        }

        .mldow-nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--mldow-primary);
            border-radius: 2px;
        }

        /* Hero 区域：非对称布局 */
        .mldow-hero {
            padding: 160px 0 80px;
            background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.05) 0%, transparent 40%);
            overflow: hidden;
        }

        .mldow-hero-grid {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 5%;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

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

        .mldow-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.2;
            color: var(--mldow-secondary);
            margin-bottom: 24px;
            font-weight: 800;
        }

        .mldow-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--mldow-light-text);
            margin-bottom: 32px;
            max-width: 600px;
        }

        .mldow-hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(59, 130, 246, 0.1);
            color: var(--mldow-primary);
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        /* 核心配置面板风格 */
        .mldow-config-section {
            padding: 80px 0;
        }

        .mldow-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 5%;
        }

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

        .mldow-card {
            background: var(--mldow-card-bg);
            border-radius: var(--mldow-radius);
            padding: 40px;
            box-shadow: var(--mldow-shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid rgba(0, 0, 0, 0.03);
            min-width: 0;
            word-break: break-word;
        }

        .mldow-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.08);
        }

        .mldow-card-num {
            font-size: 3rem;
            font-weight: 900;
            color: rgba(59, 130, 246, 0.1);
            line-height: 1;
            margin-bottom: 16px;
        }

        .mldow-card-title {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--mldow-secondary);
        }

        /* 协议技术亮点区块 */
        .mldow-nexus-section {
            background: var(--mldow-secondary);
            color: #fff;
            padding: 96px 0;
            margin: 48px 0;
            border-radius: 0;
        }

        .mldow-nexus-item {
            flex: 1;
            min-width: 300px;
            padding: 24px;
            border-left: 2px solid var(--mldow-primary);
            margin-bottom: 32px;
        }

        .mldow-nexus-tag {
            color: var(--mldow-primary);
            font-weight: bold;
            text-transform: uppercase;
            letter-spacing: 1px;
            font-size: 0.8rem;
            margin-bottom: 8px;
            display: block;
        }

        .mldow-nexus-desc {
            font-size: 1rem;
            color: #cbd5e1;
            margin-top: 12px;
        }

        /* 教程内容区块 */
        .mldow-tutorial-block {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            align-items: flex-start;
            margin-top: 64px;
        }

        .mldow-tutorial-text {
            flex: 1.2;
            min-width: 320px;
        }

        .mldow-tutorial-image-placeholder {
            flex: 1;
            min-width: 320px;
            background: #e2e8f0;
            border-radius: var(--mldow-radius);
            min-height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
            box-shadow: inset 0 2px 4px 0 rgba(0,0,0,0.06);
        }

        .mldow-tutorial-image-placeholder::before {
            content: "Setting UI Preview";
            color: var(--mldow-light-text);
            font-weight: 600;
        }

        /* 效率工具列表 */
        .mldow-list {
            list-style: none;
            margin-top: 24px;
        }

        .mldow-list-item {
            padding: 12px 0;
            border-bottom: 1px solid rgba(0,0,0,0.05);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .mldow-list-item::before {
            content: "✓";
            color: var(--mldow-accent);
            font-weight: bold;
        }

        /* 页脚 */
        .mldow-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 80px 0 40px;
            margin-top: 80px;
        }

        .mldow-footer-grid {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 5%;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
        }

        .mldow-footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .mldow-footer-links h4 {
            color: #fff;
            margin-bottom: 20px;
        }

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

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

        .mldow-footer-links a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s;
        }

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

        .mldow-bottom-bar {
            text-align: center;
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.05);
            font-size: 0.85rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .mldow-nav-menu {
                display: none; /* 移动端简化 */
            }
            .mldow-hero-grid {
                flex-direction: column;
                text-align: center;
            }
            .mldow-hero-subtitle {
                margin: 0 auto 32px;
            }
            .mldow-tutorial-block {
                flex-direction: column;
            }
        }

        /* 动画增强 */
        .mldow-hover-up:hover {
            transform: translateY(-5px);
        }