/* 基础重置和全局样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        /* 添加此项解决所有列表项小圆点问题 */
        ul, ol {
            list-style: none;
        }
        
        body {
            /* background: linear-gradient(135deg, #e0f7fa 0%, #bbdefb 100%); */
            min-height: 100vh;
            color: #333;
            padding-top: 80px;
        }
        
        /* 导航栏容器 */
        .navbar-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background-color: #fff;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
        }
        
        /* 导航栏样式 */
        .navbar {
            width: 100%;
            margin: 0 auto;
            padding: 0 20px;
            height: 70px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo-container {
            display: flex;
			justify-items: center;
            align-items: center;
        }
        
        .company-name {
            font-size: 1.4rem;
            font-weight: 600;
            color: #2c3e50;
        }
        
        /* 导航菜单样式 - 确保没有列表小点 */
        .nav-menu {
            display: flex;
            list-style: none; /* 确保去除小圆点 */
            height: 100%;
            margin: 0;
            padding: 0;
        }
        
        .nav-item {
            position: relative;
            height: 100%;
            list-style: none; /* 双重保险确保去除小圆点 */
        }
        
        .nav-link {
            display: flex;
            align-items: center;
            height: 100%;
            padding: 0 20px;
            text-decoration: none;
            color: #2c3e50;
            font-size: 1.1rem;
            font-weight: 500;
            transition: background-color 0.3s;
            position: relative;
        }
        
        .nav-link:hover {
            background-color: rgba(52, 152, 219, 0.08);
        }
        
        .nav-link.has-children::after {
            content: "›";
            margin-left: 6px;
            font-size: 1.2rem;
            transform: rotate(90deg);
            display: inline-block;
            position: relative;
            top: 1px;
        }
        
        /* 二级菜单样式 */
        .submenu-level1 {
            position: absolute;
            top: 100%;
            left: 0;
            width: 280px;
            background: white;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
            border-radius: 0 0 6px 6px;
            padding: 10px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            z-index: 200;
            /* 确保去除所有列表项小圆点 */
            list-style: none;
        }
        
        .nav-item:hover .submenu-level1 {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        
        .submenu-item-level1 {
            padding: 8px 25px;
            position: relative;
            list-style: none; /* 确保去除小圆点 */
        }
        
        .submenu-link-level1 {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: #2c3e50;
            padding: 8px 0;
            font-size: 1.05rem;
            transition: color 0.2s;
        }
        
        .has-sub-level2 .submenu-link-level1::after {
            content: "›";
            margin-left: auto;
            font-size: 1.3rem;
        }
        
        .submenu-link-level1:hover {
            color: #3498db;
        }
        
        /* 三级菜单样式 */
        .submenu-level2 {
            position: absolute;
            left: 100%;
            top: -10px;
            width: 280px;
            background: white;
            box-shadow: 0 5px 25px rgba(0, 0, 0, 0.15);
            border-radius: 0 6px 6px 6px;
            padding: 10px 0;
            opacity: 0;
            visibility: hidden;
            transform: translateX(10px);
            transition: all 0.3s ease;
            z-index: 300;
            /* 确保去除所有列表项小圆点 */
            list-style: none;
        }
        
        .has-sub-level2:hover .submenu-level2 {
            opacity: 1;
            visibility: visible;
            transform: translateX(0);
        }
        
        .submenu-item-level2 {
            padding: 8px 25px;
            list-style: none; /* 确保去除小圆点 */
        }
        
        .submenu-link-level2 {
            display: block;
            text-decoration: none;
            color: #34495e;
            padding: 8px 0;
            font-size: 0.98rem;
            transition: color 0.2s;
        }
        
        .submenu-link-level2:hover {
            color: #3498db;
        }
        
        /* 分类标题样式 */
        .submenu-category {
            padding: 8px 25px;
            font-size: 0.95rem;
            color: #3498db;
            font-weight: 600;
            border-bottom: 1px solid #eee;
            margin: 10px 0;
            padding-top: 15px;
        }
        
        .submenu-category:first-child {
            margin-top: 0;
        }
        
        /* 内容区域 */
        .content-section {
            max-width: 1200px;
            margin: 0 auto;
            padding: 40px;
            background: rgba(255, 255, 255, 0.85);
            border-radius: 10px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
        }
        
        .section-header {
            background: linear-gradient(to right, #3498db, #2980b9);
            color: white;
            padding: 15px 20px;
            border-radius: 6px;
            margin-bottom: 30px;
        }
        
        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
        }
        
        .product-card {
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            transition: transform 0.3s ease;
        }
        
        .product-card:hover {
            transform: translateY(-5px);
        }
        
        .product-img {
            height: 180px;
            background: linear-gradient(135deg, #74ebd5, #9face6);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            font-weight: 600;
        }
        
        .product-info {
            padding: 15px 20px;
        }
        
        .product-title {
            color: #2c3e50;
            margin-bottom: 10px;
        }
        
        /* 页脚 */
        footer {
            margin-top: 50px;
            padding: 30px 0;
            background: #2c3e50;
            color: white;
            text-align: center;
        }
        
        /* 响应式设计 */
        @media (max-width: 1024px) {
            .nav-menu {
                display: none;
            }
            
            .mobile-toggle {
                display: block;
            }
        }