/* 基础样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", Arial, sans-serif;
        }
        
        body {
            color: #333;
            background-color: #f9f9f9;
            line-height: 1.6;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        a {
            text-decoration: none;
            color: #0066cc;
            transition: all 0.3s ease;
        }
        
        a:hover {
            color: #ff6600;
        }
        
        ul {
            list-style: none;
        }
        
        .btn {
            display: inline-block;
            padding: 10px 20px;
            background-color: #0066cc;
            color: #fff;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 16px;
            transition: background-color 0.3s;
        }
        
        .btn:hover {
            background-color: #0052a3;
            color: #fff;
        }
        
        .btn-orange {
            background-color: #ff6600;
        }
        
        .btn-orange:hover {
            background-color: #e55a00;
        }
        
        /* 卡片样式 - 统一板块边框风格 */
        .card {
            background-color: #fff;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            border: 1px solid #f0f0f0;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        /* 头部样式 */
        header {
            background-color: #fff;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }
        
        .top-bar {
            background-color: #f5f5f5;
            padding: 8px 0;
            font-size: 14px;
        }
        
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .top-bar .contact {
            color: #666;
        }
        
        .top-bar .contact span {
            margin-right: 20px;
        }
        
        .top-bar .links a {
            margin-left: 20px;
            color: #666;
        }
        
        .logo-bar {
            padding: 15px 0;
        }
        
        .logo-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo img {
            height: 50px;
            margin-right: 10px;
        }
        
        .logo-text {
            font-size: 24px;
            font-weight: bold;
            color: #0066cc;
        }
        
        .logo-desc {
            font-size: 14px;
            color: #666;
        }
        
        .hotline {
            text-align: right;
        }
        
        .hotline .phone {
            font-size: 24px;
            font-weight: bold;
            color: #ff6600;
        }
        
        .hotline .time {
            font-size: 14px;
            color: #666;
        }
        
        /* 导航样式 */
        nav {
            background-color: #0066cc;
            transition: box-shadow 0.3s ease;
        }
        
        .nav-list {
            display: flex;
        }
        
        .nav-item {
            position: relative;
        }
        
        .nav-link {
            display: block;
            padding: 15px 20px;
            color: #fff;
            font-weight: 500;
        }
        
        .nav-link:hover {
            background-color: #0052a3;
            color: #fff;
        }
        
        .nav-item.active .nav-link {
            background-color: #ff6600;
        }
        
        /* 横幅样式 */
        .banner {
            position: relative;
            height: 400px;
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100%25' height='100%25'%3E%3Cdefs%3E%3ClinearGradient id='grad' x1='0%25' y1='0%25' x2='100%25' y2='100%25'%3E%3Cstop offset='0%25' style='stop-color:%230066cc;stop-opacity:1'/%3E%3Cstop offset='100%25' style='stop-color:%23004080;stop-opacity:1'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='100%25' height='100%25' fill='url(%23grad)'/%3E%3C/svg%3E") no-repeat center;
            background-size: cover;
            color: #fff;
            display: flex;
            align-items: center;
        }
        
        .banner-content {
            max-width: 600px;
        }
        
        .banner h1 {
            font-size: 42px;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .banner p {
            font-size: 18px;
            margin-bottom: 30px;
        }
        
        .banner .btn {
            margin-right: 15px;
        }
        
        /* 服务优势 */
        .section {
            padding: 60px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        
        .section-title h2 {
            font-size: 30px;
            color: #333;
            margin-bottom: 10px;
            position: relative;
            display: inline-block;
            padding-bottom: 10px;
        }
        
        .section-title h2:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background-color: #0066cc;
        }
        
        .section-title p {
            color: #666;
            max-width: 700px;
            margin: 0 auto;
        }
        
        .advantages {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        
        .advantage-item {
            width: 30%;
            min-width: 280px;
            padding: 30px;
            margin-bottom: 30px;
        }
        
        .advantage-icon {
            width: 60px;
            height: 60px;
            background-color: #f0f7ff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        
        .advantage-icon span {
            font-size: 24px;
            color: #0066cc;
        }
        
        .advantage-item h3 {
            font-size: 18px;
            margin-bottom: 15px;
            color: #333;
        }
        
        .advantage-item p {
            color: #666;
            font-size: 14px;
        }
        
        /* 服务内容 */
        .products {
            background-color: #f9f9f9;
        }
        
        .product-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        
        .product-item {
            width: 48%;
            min-width: 300px;
            margin-bottom: 30px;
            display: flex;
            padding: 25px;
        }
        
        .product-img {
            width: 100px;
            height: 100px;
            background-color: #f0f7ff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 20px;
            flex-shrink: 0;
        }
        
        .product-img span {
            font-size: 30px;
            color: #0066cc;
        }
        
        .product-info h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: #333;
        }
        
        .product-info p {
            color: #666;
            margin-bottom: 15px;
        }
        
        .product-info ul {
            color: #666;
        }
        
        .product-info li {
            margin-bottom: 5px;
            padding-left: 20px;
            position: relative;
        }
        
        .product-info li:before {
            content: "•";
            color: #0066cc;
            font-weight: bold;
            position: absolute;
            left: 5px;
        }
        
        /* 企业信息 */
        .company-info {
            background-color: #f9f9f9;
        }
        
        .info-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        
        .info-item {
            width: 48%;
            min-width: 300px;
            margin-bottom: 30px;
            padding: 30px;
        }
        
        .info-item h3 {
            font-size: 20px;
            margin-bottom: 20px;
            color: #333;
            padding-bottom: 10px;
            border-bottom: 2px solid #0066cc;
        }
        
        .info-item p {
            margin-bottom: 15px;
            color: #666;
        }
        
        .info-contact {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .info-contact i {
            width: 30px;
            color: #0066cc;
        }
        
        /* 友情链接 - 优化样式 */
        .friend-links {
            background-color: #fff;
            padding: 40px 0;
            border-top: 1px solid #f0f0f0;
            border-bottom: 1px solid #f0f0f0;
        }
        
        .friend-links h3 {
            font-size: 18px;
            margin-bottom: 25px;
            color: #333;
            padding-bottom: 10px;
            border-bottom: 1px solid #f0f0f0;
            display: inline-block;
        }
        
        .links-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
        }
        
        .links-row a {
            color: #666;
            white-space: nowrap;
            padding: 5px 10px;
            border-radius: 4px;
            border: 1px solid #eee;
            display: inline-block;
        }
        
        .links-row a:hover {
            color: #0066cc;
            background-color: #f0f7ff;
            border-color: #cce0ff;
            transform: translateY(-2px);
        }
        
        /* 页脚 */
        footer {
            background-color: #333;
            color: #ccc;
            padding: 40px 0 20px;
        }
        
        .footer-content {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            margin-bottom: 30px;
        }
        
        .footer-col {
            width: 23%;
            min-width: 200px;
            margin-bottom: 30px;
        }
        
        .footer-col h3 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #444;
        }
        
        .footer-col ul li {
            margin-bottom: 10px;
        }
        
        .footer-col a {
            color: #ccc;
        }
        
        .footer-col a:hover {
            color: #fff;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            font-size: 14px;
        }
        
        .copyright p {
            margin-bottom: 10px;
        }
        
        .copyright a {
            color: #ccc;
        }
        
        /* 响应式调整 */
        @media (max-width: 992px) {
            .advantage-item, .product-item, .info-item, .footer-col {
                width: 48%;
            }
            
            .banner h1 {
                font-size: 36px;
            }
        }
        
        @media (max-width: 768px) {
            .advantage-item, .product-item, .info-item, .footer-col {
                width: 100%;
            }
            
            .nav-list {
                flex-wrap: wrap;
            }
            
            .nav-item {
                width: 50%;
                text-align: center;
            }
            
            .banner h1 {
                font-size: 28px;
            }
            
            .banner {
                height: auto;
                padding: 60px 0;
            }
            
            .logo-bar .container {
                flex-direction: column;
                text-align: center;
            }
            
            .hotline {
                margin-top: 15px;
                text-align: center;
            }
            
            .top-bar .container {
                flex-direction: column;
            }
            
            .top-bar .links {
                margin-top: 10px;
            }
            
            .top-bar .links a {
                margin: 0 10px;
            }
        }