/* 基础变量与重置 */
        :root {
            --mldow-primary: #00a896;
            --mldow-secondary: #028090;
            --mldow-dark: #05668d;
            --mldow-deep: #02c39a;
            --mldow-bg-light: #f0f4f8;
            --mldow-text: #2d3436;
            --mldow-white: #ffffff;
            --mldow-accent: #f39c12;
            --mldow-radius: 12px;
            --mldow-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --mldow-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
            line-height: 1.8;
            color: var(--mldow-text);
            background-color: var(--mldow-bg-light);
            word-break: break-word;
            overflow-x: hidden;
        }

        /* 排版系统 */
        h1, h2, h3 {
            line-height: 1.3;
            font-weight: 700;
            word-break: keep-all;
            white-space: normal;
        }

        h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
        h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); margin-bottom: 24px; }
        p { font-size: clamp(1rem, 1vw + 0.5rem, 1.125rem); margin-bottom: 16px; }

        /* 布局容器 */
        .mldow-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* 导航栏 */
        .mldow-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0,0,0,0.05);
        }

        .mldow-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
        }

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

        .mldow-logo img {
            height: 48px;
            width: auto;
            display: block;
        }

        .mldow-nav-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 8px;
        }

        .mldow-nav-item {
            min-width: 0;
        }

        .mldow-nav-link {
            text-decoration: none;
            color: var(--mldow-dark);
            padding: 8px 12px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--mldow-transition);
            border-radius: 6px;
        }

        .mldow-nav-link:hover {
            background: rgba(0, 168, 150, 0.1);
            color: var(--mldow-primary);
        }

        .mldow-nav-link.active {
            color: var(--mldow-white);
            background: var(--mldow-primary);
        }

        /* Hero 区域 - 独特视觉 */
        .mldow-hero-sftp {
            padding: 160px 0 80px;
            background: linear-gradient(135deg, #05668d 0%, #028090 100%);
            color: var(--mldow-white);
            position: relative;
            clip-path: polygon(0 0, 100% 0, 100% 85%, 0% 100%);
        }

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

        .mldow-hero-text {
            flex: 1 1 500px;
            min-width: 0;
        }

        .mldow-hero-visual {
            flex: 1 1 400px;
            min-width: 0;
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: var(--mldow-radius);
            padding: 32px;
            box-shadow: 20px 20px 60px rgba(0,0,0,0.2);
        }

        .mldow-hero-title {
            margin-bottom: 24px;
            color: #fff;
        }

        .mldow-hero-subtitle {
            font-size: 1.25rem;
            opacity: 0.9;
            margin-bottom: 32px;
        }

        /* 卡片网格 */
        .mldow-section {
            padding: 80px 0;
        }

        .mldow-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .mldow-feature-card {
            background: var(--mldow-white);
            padding: 40px;
            border-radius: var(--mldow-radius);
            box-shadow: var(--mldow-shadow);
            transition: var(--mldow-transition);
            border-bottom: 4px solid transparent;
        }

        .mldow-feature-card:hover {
            transform: translateY(-10px);
            border-bottom-color: var(--mldow-primary);
        }

        .mldow-card-icon {
            font-size: 2.5rem;
            margin-bottom: 24px;
            display: inline-block;
            background: var(--mldow-bg-light);
            width: 64px;
            height: 64px;
            line-height: 64px;
            text-align: center;
            border-radius: 50%;
        }

        /* 核心协议展示区 */
        .mldow-nexus-box {
            background: #fff;
            border-radius: 20px;
            overflow: hidden;
            display: flex;
            flex-wrap: wrap;
            box-shadow: var(--mldow-shadow);
        }

        .mldow-nexus-item {
            flex: 1 1 300px;
            min-width: 0;
            padding: 48px;
            border: 1px solid #f0f0f0;
        }

        .mldow-nexus-title {
            color: var(--mldow-secondary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
        }

        .mldow-tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin: 16px 0;
        }

        .mldow-tag {
            background: #e0f2f1;
            color: var(--mldow-secondary);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
        }

        /* 按钮样式 */
        .mldow-btn {
            display: inline-block;
            padding: 14px 32px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: var(--mldow-transition);
            cursor: pointer;
            border: none;
            text-align: center;
        }

        .mldow-btn-primary {
            background: var(--mldow-deep);
            color: var(--mldow-white);
            box-shadow: 0 4px 15px rgba(2, 195, 154, 0.3);
        }

        .mldow-btn-primary:hover {
            background: var(--mldow-primary);
            transform: scale(1.05);
        }

        /* 页脚 */
        .mldow-footer {
            background: #1a1a1a;
            color: #d1d1d1;
            padding: 80px 0 40px;
        }

        .mldow-footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            margin-bottom: 48px;
        }

        .mldow-footer-brand {
            flex: 2 1 300px;
            min-width: 0;
        }

        .mldow-footer-brand h3 {
            color: #fff;
            margin-bottom: 16px;
        }

        .mldow-footer-links {
            flex: 1 1 200px;
            min-width: 0;
        }

        .mldow-footer-links h4 {
            color: #fff;
            margin-bottom: 24px;
        }

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

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

        .mldow-footer-links a {
            color: #aaa;
            text-decoration: none;
            transition: var(--mldow-transition);
        }

        .mldow-footer-links a:hover {
            color: var(--mldow-deep);
            padding-left: 8px;
        }

        .mldow-footer-bottom {
            padding-top: 40px;
            border-top: 1px solid #333;
            text-align: center;
            font-size: 0.9rem;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .mldow-nav-menu {
                display: none; /* 简化演示：移动端可隐藏或改为汉堡菜单 */
            }
            .mldow-hero-sftp {
                clip-path: none;
                padding: 120px 0 60px;
            }
            .mldow-nexus-item {
                padding: 24px;
            }
        }

        /* 独特装饰：代码行背景 */
        .mldow-code-visual {
            background: #1e1e1e;
            color: #d4d4d4;
            padding: 20px;
            border-radius: 8px;
            font-family: 'Consolas', monospace;
            font-size: 0.85rem;
            line-height: 1.4;
        }

        .mldow-code-accent { color: #569cd6; }
        .mldow-code-string { color: #ce9178; }