:root {
            --mldow-primary: #004c8c;
            --mldow-secondary: #00d2ff;
            --mldow-accent: #ff9d00;
            --mldow-dark: #1a1c23;
            --mldow-light: #f8f9fa;
            --mldow-text: #333333;
            --mldow-text-light: #666666;
            --mldow-white: #ffffff;
            --mldow-gradient: linear-gradient(135deg, #004c8c 0%, #00d2ff 100%);
            --mldow-glass: rgba(255, 255, 255, 0.9);
            --mldow-radius: 16px;
            --mldow-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            --mldow-container-width: 1400px;
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            color: var(--mldow-text);
            background-color: #f0f2f5;
            word-break: keep-all;
            overflow-x: hidden;
        }

        /* 导航栏 */
        .mldow-navbar {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--mldow-glass);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            padding: 15px 0;
            box-shadow: var(--mldow-shadow);
        }

        .mldow-nav-container {
            max-width: var(--mldow-container-width);
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .mldow-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .mldow-nav-menu {
            display: flex;
            list-style: none;
            gap: 15px;
            flex-wrap: wrap;
        }

        .mldow-nav-link {
            text-decoration: none;
            color: var(--mldow-text);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 12px;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .mldow-nav-link:hover {
            color: var(--mldow-primary);
            background: rgba(0, 76, 140, 0.05);
        }

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

        /* Hero 区 - 非对称布局 */
        .mldow-hero {
            padding: 160px 0 100px;
            background: var(--mldow-white);
            position: relative;
            overflow: hidden;
        }

        .mldow-hero::before {
            content: "";
            position: absolute;
            top: -10%;
            right: -10%;
            width: 50%;
            height: 80%;
            background: var(--mldow-gradient);
            opacity: 0.03;
            border-radius: 50%;
            filter: blur(80px);
        }

        .mldow-hero-wrapper {
            max-width: var(--mldow-container-width);
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

        .mldow-hero-text {
            flex: 1;
            min-width: 0;
            word-break: break-word;
        }

        .mldow-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--mldow-dark);
            margin-bottom: 32px;
            background: linear-gradient(to right, #1a2a6c, #b21f1f, #fdbb2d);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .mldow-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--mldow-text-light);
            margin-bottom: 40px;
            max-width: 700px;
            line-height: 1.8;
        }

        .mldow-hero-visual {
            flex: 1.2;
            min-width: 0;
            position: relative;
        }

        .mldow-hero-image-box {
            background: var(--mldow-dark);
            padding: 12px;
            border-radius: 20px;
            box-shadow: 0 50px 100px rgba(0,0,0,0.2);
            transform: perspective(1000px) rotateY(-5deg);
        }

        .mldow-hero-image-box img {
            width: 100%;
            height: auto;
            border-radius: 12px;
            display: block;
        }

        /* 核心协议区 - Grid布局 */
        .mldow-nexus-section {
            padding: 100px 0;
            background: #f0f2f5;
        }

        .mldow-section-header {
            max-width: 900px;
            margin: 0 auto 64px;
            text-align: center;
            padding: 0 24px;
        }

        .mldow-section-tag {
            display: inline-block;
            background: var(--mldow-gradient);
            color: var(--mldow-white);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .mldow-section-title {
            font-size: clamp(1.8rem, 3vw, 2.8rem);
            color: var(--mldow-dark);
            margin-bottom: 24px;
        }

        .mldow-grid-nexus {
            max-width: var(--mldow-container-width);
            margin: 0 auto;
            padding: 0 40px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
            gap: 32px;
        }

        .mldow-nexus-card {
            background: var(--mldow-white);
            padding: 48px;
            border-radius: var(--mldow-radius);
            box-shadow: var(--mldow-shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            border: 1px solid rgba(0,0,0,0.03);
        }

        .mldow-nexus-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
        }

        .mldow-nexus-group {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--mldow-primary);
        }

        .mldow-nexus-engines {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 24px;
        }

        .mldow-engine-tag {
            background: #eef2f7;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.85rem;
            color: var(--mldow-text-light);
            font-weight: 600;
        }

        .mldow-nexus-highlight {
            font-size: 1rem;
            color: var(--mldow-text);
            line-height: 1.7;
            padding-top: 20px;
            border-top: 1px solid #eee;
        }

        /* 工作流展示区 */
        .mldow-workflow-section {
            padding: 120px 0;
            background: var(--mldow-white);
        }

        .mldow-workflow-row {
            max-width: var(--mldow-container-width);
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 80px;
        }

        .mldow-workflow-image {
            flex: 1;
            min-width: 0;
        }

        .mldow-workflow-image img {
            width: 100%;
            height: auto;
            border-radius: 24px;
            box-shadow: 20px 20px 60px rgba(0,0,0,0.05);
        }

        .mldow-workflow-content {
            flex: 1;
            min-width: 0;
            word-break: break-word;
        }

        .mldow-feature-item {
            margin-bottom: 40px;
        }

        .mldow-feature-item h3 {
            font-size: 1.8rem;
            margin-bottom: 16px;
            color: var(--mldow-dark);
        }

        .mldow-feature-item p {
            font-size: 1.1rem;
            color: var(--mldow-text-light);
        }

        /* 安全与团队 */
        .mldow-security-team {
            padding: 100px 0;
            background: var(--mldow-dark);
            color: var(--mldow-white);
        }

        .mldow-split-layout {
            max-width: var(--mldow-container-width);
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

        .mldow-split-card {
            flex: 1;
            min-width: 300px;
            background: rgba(255,255,255,0.05);
            padding: 48px;
            border-radius: 24px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .mldow-split-card img {
            width: 100%;
            height: 240px;
            object-fit: cover;
            border-radius: 16px;
            filter: grayscale(0.2) contrast(1.1);
        }

        /* 动态内容区 */
        .mldow-news-section {
            padding: 80px 0;
            background: #fff;
        }

        .mldow-news-grid {
            max-width: var(--mldow-container-width);
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        /* 页脚 */
        .mldow-footer {
            background: #111;
            color: #888;
            padding: 80px 0 40px;
        }

        .mldow-footer-container {
            max-width: var(--mldow-container-width);
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .mldow-footer-brand {
            flex: 2;
            min-width: 250px;
        }

        .mldow-footer-brand h2 {
            color: #fff;
            font-size: 2rem;
            margin-bottom: 20px;
        }

        .mldow-footer-links {
            flex: 1;
            min-width: 150px;
        }

        .mldow-footer-links h4 {
            color: #fff;
            margin-bottom: 24px;
            font-size: 1.1rem;
        }

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

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

        .mldow-footer-links a {
            color: #888;
            text-decoration: none;
            transition: color 0.3s;
        }

        .mldow-footer-links a:hover {
            color: var(--mldow-secondary);
        }

        .mldow-footer-bottom {
            max-width: var(--mldow-container-width);
            margin: 60px auto 0;
            padding: 40px 40px 0;
            border-top: 1px solid #222;
            text-align: center;
            font-size: 0.9rem;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .mldow-hero-wrapper {
                flex-direction: column;
                text-align: center;
            }
            .mldow-hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .mldow-hero-visual {
                width: 100%;
                max-width: 700px;
            }
        }

        @media (max-width: 768px) {
            .mldow-nav-container {
                flex-direction: column;
                gap: 15px;
            }
            .mldow-nav-menu {
                justify-content: center;
            }
            .mldow-grid-nexus {
                grid-template-columns: 1fr;
            }
            .mldow-workflow-row {
                flex-direction: column;
            }
            .mldow-split-layout {
                flex-direction: column;
            }
            .mldow-hero {
                padding-top: 200px;
            }
        }