:root {
            --u25mzy-primary: #0654ba;
            --u25mzy-primary-light: #e6efff;
            --u25mzy-accent: #ff4d4f;
            --u25mzy-text-dark: #1d1d1f;
            --u25mzy-text-gray: #86868b;
            --u25mzy-bg-soft: #f5f5f7;
            --u25mzy-white: #ffffff;
            --u25mzy-shadow: 0 10px 30px rgba(0,0,0,0.08);
            --u25mzy-radius: 16px;
            --u25mzy-container-width: 1400px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-font-smoothing: antialiased;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--u25mzy-white);
            color: var(--u25mzy-text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

        ul {
            list-style: none;
        }

        /* 布局基础 */
        .u25mzy-container {
            max-width: var(--u25mzy-container-width);
            margin: 0 auto;
            padding: 0 5vw;
            width: 100%;
        }

        /* 导航栏 */
        .u25mzy-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .u25mzy-nav-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 72px;
            min-width: 0;
        }

        .u25mzy-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .u25mzy-logo img {
            height: 32px;
            width: auto;
            display: block;
        }

        .u25mzy-nav-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: center;
            min-width: 0;
        }

        .u25mzy-nav-item {
            font-size: 15px;
            font-weight: 500;
            color: var(--u25mzy-text-dark);
            position: relative;
            padding: 8px 0;
            word-break: keep-all;
        }

        .u25mzy-nav-item:hover {
            color: var(--u25mzy-primary);
        }

        .u25mzy-nav-item.u25mzy-active {
            color: var(--u25mzy-primary);
        }

        .u25mzy-nav-item.u25mzy-active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--u25mzy-primary);
            border-radius: 2px;
        }

        /* Hero 区域 - 独特非对称布局 */
        .u25mzy-hero {
            padding-top: 160px;
            padding-bottom: 96px;
            background: radial-gradient(circle at 80% 20%, var(--u25mzy-primary-light) 0%, var(--u25mzy-white) 50%);
            overflow: hidden;
        }

        .u25mzy-hero-grid {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
        }

        .u25mzy-hero-content {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .u25mzy-hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: var(--u25mzy-primary-light);
            color: var(--u25mzy-primary);
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .u25mzy-hero-title {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            line-height: 1.1;
            font-weight: 800;
            color: var(--u25mzy-text-dark);
            margin-bottom: 24px;
            white-space: normal;
        }

        .u25mzy-hero-subtitle {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.35rem);
            color: var(--u25mzy-text-gray);
            margin-bottom: 40px;
            max-width: 600px;
        }

        .u25mzy-download-card {
            flex: 1;
            min-width: 320px;
            background: var(--u25mzy-white);
            padding: 48px;
            border-radius: 32px;
            box-shadow: 0 40px 80px rgba(0,0,0,0.1);
            position: relative;
            border: 1px solid rgba(0,0,0,0.05);
        }

        .u25mzy-btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .u25mzy-btn-primary {
            background: linear-gradient(135deg, var(--u25mzy-primary) 0%, #0076ff 100%);
            color: var(--u25mzy-white);
            padding: 18px 40px;
            border-radius: 12px;
            font-size: 18px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 10px 20px rgba(6, 84, 186, 0.2);
            border: none;
            cursor: pointer;
        }

        .u25mzy-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(6, 84, 186, 0.3);
        }

        /* 协作场景解决方案 */
        .u25mzy-section {
            padding: 96px 0;
            word-break: break-word;
        }

        .u25mzy-section-header {
            text-align: center;
            margin-bottom: 64px;
        }

        .u25mzy-section-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .u25mzy-scenario-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 32px;
        }

        .u25mzy-scenario-card {
            background: var(--u25mzy-bg-soft);
            border-radius: var(--u25mzy-radius);
            padding: 40px;
            transition: transform 0.3s ease;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .u25mzy-scenario-card:hover {
            transform: translateY(-10px);
            background: var(--u25mzy-white);
            box-shadow: var(--u25mzy-shadow);
        }

        .u25mzy-scenario-icon {
            width: 56px;
            height: 56px;
            background: var(--u25mzy-white);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
        }

        .u25mzy-scenario-content h3 {
            font-size: 22px;
            margin-bottom: 12px;
            color: var(--u25mzy-primary);
        }

        .u25mzy-pain-points {
            margin: 16px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .u25mzy-pain-tag {
            font-size: 13px;
            background: rgba(255, 77, 79, 0.1);
            color: var(--u25mzy-accent);
            padding: 4px 12px;
            border-radius: 6px;
        }

        .u25mzy-solution-box {
            background: rgba(255,255,255,0.6);
            padding: 20px;
            border-radius: 12px;
            font-size: 14px;
        }

        /* 客户成功案例 - 视觉交错 */
        .u25mzy-case-section {
            background-color: var(--u25mzy-text-dark);
            color: var(--u25mzy-white);
            padding: 96px 0;
            border-radius: 40px;
            margin: 0 24px;
        }

        .u25mzy-case-item {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            margin-bottom: 80px;
        }

        .u25mzy-case-item:last-child {
            margin-bottom: 0;
            flex-direction: row-reverse;
        }

        .u25mzy-case-text {
            flex: 1;
            min-width: 320px;
        }

        .u25mzy-case-entity {
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--u25mzy-primary);
            margin-bottom: 16px;
            display: block;
        }

        .u25mzy-case-title {
            font-size: 28px;
            font-weight: 600;
            margin-bottom: 24px;
            line-height: 1.4;
        }

        .u25mzy-case-outcome {
            display: flex;
            gap: 32px;
            margin-top: 32px;
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

        .u25mzy-stat-num {
            font-size: 32px;
            font-weight: 700;
            color: var(--u25mzy-primary);
            display: block;
        }

        .u25mzy-stat-label {
            font-size: 12px;
            color: var(--u25mzy-text-gray);
        }

        /* 资讯区块标记 */
        .u25mzy-news-section {
            background: var(--u25mzy-bg-soft);
        }

        /* 页脚 */
        .u25mzy-footer {
            padding: 80px 0 40px;
            background: var(--u25mzy-white);
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .u25mzy-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .u25mzy-footer-brand h2 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .u25mzy-footer-links h4 {
            font-size: 16px;
            margin-bottom: 20px;
        }

        .u25mzy-footer-links li {
            margin-bottom: 12px;
        }

        .u25mzy-footer-links a {
            color: var(--u25mzy-text-gray);
            font-size: 14px;
        }

        .u25mzy-footer-links a:hover {
            color: var(--u25mzy-primary);
        }

        .u25mzy-copyright {
            text-align: center;
            padding-top: 40px;
            border-top: 1px solid rgba(0,0,0,0.05);
            font-size: 13px;
            color: var(--u25mzy-text-gray);
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .u25mzy-hero-grid {
                flex-direction: column;
                text-align: center;
            }
            .u25mzy-hero-content {
                display: flex;
                flex-direction: column;
                align-items: center;
            }
            .u25mzy-btn-group {
                justify-content: center;
            }
        }

        @media (max-width: 768px) {
            .u25mzy-nav-menu {
                display: none; /* 简化演示：移动端隐藏菜单，实际开发应使用汉堡菜单 */
            }
            .u25mzy-scenario-grid {
                grid-template-columns: 1fr;
            }
            .u25mzy-case-item, .u25mzy-case-item:last-child {
                flex-direction: column;
            }
            .u25mzy-container {
                padding: 0 20px;
            }
            .u25mzy-case-section {
                margin: 0;
                border-radius: 0;
            }
        }