* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Microsoft YaHei', sans-serif;
            transition: background-color 0.3s, color 0.3s;
        }
        
       /* 主题颜色变量 */
       :root {
           --primary-color: #1e88e5;
           --primary-hover: #1565c0;
           --footer-bg: #333;
           --nav-bg: #fff; /* 默认导航栏背景为白色 */
       }
        
       /* 蓝色主题 */
       .theme-blue {
           --primary-color: #1e88e5;
           --primary-hover: #1565c0;
           --nav-bg: #1e88e5; /* 导航栏使用主题色 */
       }
        
       /* 绿色主题 */
       .theme-green {
           --primary-color: #4caf50;
           --primary-hover: #388e3c;
           --nav-bg: #4caf50; /* 导航栏使用主题色 */
       }
        
       /* 橙色主题 */
       .theme-orange {
           --primary-color: #ff9800;
           --primary-hover: #f57c00;
           --nav-bg: #ff9800; /* 导航栏使用主题色 */
       }
        /* 顶部工具栏 */
        .top-toolbar {
            background-color: #f5f5f5;
            padding: 8px 0;
            font-size: 14px;
        }
        
        .toolbar-container {
            display: flex;
            justify-content: flex-end;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        .theme-switcher, .language-switcher {
            display: flex;
            align-items: center;
            margin-left: 20px;
        }
        
        .theme-switcher span, .language-switcher span {
            margin-right: 8px;
            color: #666;
        }
        
        .theme-option {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            margin: 0 5px;
            cursor: pointer;
            border: 2px solid transparent;
        }
        
        .theme-option:hover {
            transform: scale(1.1);
        }
        
        .theme-option.active  {
            border-color: #333;
        }
        
        .theme-blue-option {
            background-color: #1e88e5;
        }
        
        .theme-green-option {
            background-color: #4caf50;
        }
        
        .theme-orange-option {
            background-color: #ff9800;
        }
        
        .language-option {
            padding: 2px 8px;
            border-radius: 3px;
            cursor: pointer;
            color: #666;
        }
        
        .language-option.active  {
            background-color: var(--primary-color);
            color: white;
        }
        
        body {
            line-height: 1.6;
            color: #333;
        }
        
        a {
            text-decoration: none;
            color: inherit;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 头部样式 */
    /*    header {
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        */
	   
	   /* 头部样式 */
	   header {
	       background-color: var(--nav-bg);
	       box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
	       position: sticky;
	       top: 0;
	       z-index: 1000;
	       transition: background-color 0.3s;
	   }
	    
	   /* 导航链接颜色调整 */
	   .nav-desktop a {
	       padding: 10px 15px;
	       margin: 0 5px;
	       font-size: 16px;
	       transition: all 0.3s;
	       color: var(--nav-bg) == #fff ? #333 : #fff; /* 根据背景色调整文字颜色 */
	   }
	    
	   /* 移动端导航菜单背景色 */
	   .nav-mobile {
	       background-color: var(--nav-bg);
	       /* 其他样式保持不变 */
	   }
	   
	   
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo img {
            height: 40px;
        }
        
        .nav-desktop {
            display: flex;
        }
        
       .nav-desktop a {
            padding: 10px 15px;
            margin: 0 5px;
            font-size: 16px;
            transition: all 0.3s;
        }
        
       /* .nav-desktop a:hover {
            color: var(--primary-color);
        } */
        
        .contact-phone {
            display: flex;
            flex-direction: column;
            align-items: flex-end;
        }
 
        .phone-item {
            display: flex;
            align-items: center;
            margin-bottom: 5px;
            font-size: 14px;
            /* color: var(--primary-color); */
			color: #EEEEEE;
            font-weight: bold;
        }
 
        .phone-item:last-child {
            margin-bottom: 0;
        }
 
        .phone-item i {
            margin-right: 5px;
            font-size: 14px;
        }
 
        .contact-name {
            margin-left: 8px;
            /* color: #666; */
			color: #EEEEEE;
            font-weight: normal;
        }
        
        /* 移动端导航按钮 */
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: #333;
        }
        
        /* 移动端导航菜单 */
        .nav-mobile {
            display: none;
            /* background-color: #fff; */
            padding: 15px;
            box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        }
        
        .nav-mobile a {
            display: block;
            padding: 10px 0;
            border-bottom: 1px solid #eee;
        }
        
        /* Banner部分 */
        .banner {
            margin-top: 0;
            height: 500px;
            background-color: #f5f5f5;
            display: flex;
            align-items: center;
            justify-content: center;
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
            position: relative;
        }
        
        .banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
        }
        
        .banner-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
            padding: 0 20px;
        }
        
        .banner h1 {
            font-size: 42px;
            margin-bottom: 20px;
        }
        
        .banner p {
            font-size: 18px;
            margin-bottom: 30px;
        }
        
        .btn {
            display: inline-block;
            padding: 12px 30px;
            background-color: var(--primary-color);
            color: #fff;
            border-radius: 4px;
            transition: all 0.3s;
        }
        
        .btn:hover {
            background-color: var(--primary-hover);
        }
        
        /* 公司简介部分 */
        .about {
            padding: 80px 0;
        }
        
        .about-container {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
        }
        
        .about-image {
            flex: 1;
            min-width: 300px;
            padding: 15px;
        }
        
        .about-image img {
            width: 100%;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        .about-content {
            flex: 1;
            min-width: 300px;
            padding: 15px;
        }
        
        .section-title {
            font-size: 32px;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 15px;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background-color: var(--primary-color);
        }
        
        .about-content p {
            margin-bottom: 15px;
            font-size: 16px;
            color: #666;
        }
        
        /* 产品展示部分 */
        .products {
            padding: 80px 0;
            background-color: #f9f9f9;
        }
        
        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .product-card {
            background-color: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s;
        }
        
        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .product-image {
            height: 200px;
            overflow: hidden;
        }
        
        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: all 0.5s;
        }
        
        .product-card:hover .product-image img {
            transform: scale(1.1);
        }
        
        .product-info {
            padding: 20px;
        }
        
        .product-title {
            font-size: 18px;
            margin-bottom: 10px;
        }
        
        .product-desc {
            color: #666;
            font-size: 14px;
            margin-bottom: 15px;
        }
        
        /* 新闻中心部分 */
        .news {
            padding: 80px 0;
        }
        
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .news-card {
            background-color: #fff;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s;
            display: flex;
            flex-direction: column;
        }
        
        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .news-image {
            width: 100%;
            height: 200px;
            overflow: hidden;
        }
        
        .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: all 0.5s;
        }
        
        .news-card:hover .news-image img {
            transform: scale(1.05);
        }
        
        .news-content {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        
        .news-date {
            font-size: 14px;
            color: #999;
            margin-bottom: 8px;
        }
        
        .news-title {
            font-size: 18px;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .news-excerpt {
            font-size: 14px;
            color: #666;
            margin-bottom: 15px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        
        .read-more {
            color: var(--primary-color);
            font-size: 14px;
            font-weight: 500;
            align-self: flex-start;
            transition: all 0.3s;
        }
        
        .read-more:hover {
            color: var(--primary-hover);
            text-decoration: underline;
        }
        
        /* 页脚部分 */
        footer {
            background-color: var(--footer-bg);
            color: #fff;
            padding: 60px 0 20px;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            font-size: 18px;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--primary-color);
        }
        
        .footer-column p {
            margin-bottom: 15px;
            color: #ccc;
            font-size: 14px;
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 10px;
        }
        
        .footer-column ul li a {
            color: #ccc;
            font-size: 14px;
            transition: all 0.3s;
        }
        
        .footer-column ul li a:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #999;
            font-size: 14px;
        }
		
		
		/* 页脚链接 分类pc样式 */
		
		.footerpc-column h3 {
		    font-size: 18px;
		    margin-bottom: 20px;
		    position: relative;
		    padding-bottom: 10px;
		}
		
		.footerpc-column h3::after {
		    content: '';
		    position: absolute;
		    bottom: 0;
		    left: 0;
		    width: 40px;
		    height: 2px;
		    background-color: var(--primary-color);
		}
		
		.footerpc-column p {
		    margin-bottom: 15px;
		    color: #ccc;
		    font-size: 14px;
		}
		
		.footerpc-column ul {
		    list-style: none;
		}
		
		.footerpc-column ul li {
		    margin-bottom: 10px;
		}
		
		.footerpc-column ul li a {
		    color: #ccc;
		    font-size: 14px;
		    transition: all 0.3s;
		}
		
		.footerpc-column ul li a:hover {
		    color: var(--primary-color);
		    padding-left: 5px;
		}
		
		/* 页脚链接 分类 的pc样式 */
        
        /* 微信二维码样式 */
        .wechat-qrcode {
            margin-top: 20px;
            text-align: center;
        }
        
        .wechat-qrcode img {
            width: 120px;
            height: 120px;
            border: 1px solid #eee;
            padding: 5px;
            background: #fff;
            margin-bottom: 8px;
        }
        
        .wechat-qrcode p {
            font-size: 12px;
            color: #ccc;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .banner {
                height: 400px;
            }
            
            .banner h1 {
                font-size: 36px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            
            .nav-toggle {
                display: block;
            }
            
            .contact-phone {
                display: none;
            }
            
            .phone-mobile {
                display: flex;
                align-items: center;
                color: var(--primary-color);
                font-weight: bold;
                font-size: 14px;
            }
            
            .banner {
                height: 350px;
            }
            
            .banner h1 {
                font-size: 30px;
            }
            
            .banner p {
                font-size: 16px;
            }
            
            .about-container {
                flex-direction: column;
            }
            
            .about-image, .about-content {
                min-width: 100%;
            }
            
            .news-grid {
                grid-template-columns: 1fr;
            }
            
            /* 移动端导航菜单中添加电话信息 */
            .nav-mobile .mobile-phones {
                padding: 15px;
                border-top: 1px solid #eee;
                border-bottom: 1px solid #eee;
                margin: 10px 0;
            }
            
            .nav-mobile .phone-item {
                color: #333;
                margin-bottom: 10px;
            }
			
			.footerpc-column {
                display: none;
            }
        }
        
        @media (max-width: 576px) {
            .banner {
                height: 300px;
            }
            
            .banner h1 {
                font-size: 26px;
            }
            
            .section-title {
                font-size: 28px;
            }
            
            .products-grid {
                grid-template-columns: 1fr;
            }
            
            .news-card {
                flex-direction: column;
            }
            
            .news-image {
                width: 100%;
                height: 180px;
            }
            
            /* 顶部工具栏在小屏幕上调整 */
            .toolbar-container {
                justify-content: center;
            }
            
            .theme-switcher, .language-switcher {
                margin-left: 10px;
            }
        }