* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
        }

        body {
            background: linear-gradient(135deg, #f5f7fa, #e4e8f0);
            color: #333;
            line-height: 1.5;
        }

        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }

        /* 导航栏 */
        header {
            background-color: rgba(255, 255, 255, 0.9);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        header .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px;
        }
        
        .logo {
            width: 95px; /* Logo容器宽度 */
            height: 48px; /* Logo容器高度 */
            overflow: hidden; /* 隐藏超出部分 */
            position: relative;
        }

        .logo h1 {
            font-size: 24px;
            color: #333;
        }
        
        .logo-image {
            /*width: 95px;*/
            height: 54px;
            transition: transform 0.3s ease; /* 添加过渡效果，使放大更平滑 */
            /*transform: scale(1.5); */
            position: relative;
            /*left: -10px;*/
            /*top: -5px; */
        }

        nav ul {
            display: flex;
            list-style: none;
        }

        nav ul li {
            margin-left: 20px;
        }

        nav ul li a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            padding: 11px 29px;
            border-radius: 4px;
            transition: all 0.3s ease;
        }

        nav ul li a.active, nav ul li a:hover {
            background-color: #1890ff;
            color: white;
        }

        .user-actions {
            display: flex;
        }

        .user-actions a {
            text-decoration: none;
            margin-left: 15px;
            padding: 8px 15px;
            border-radius: 4px;
            font-weight: 500;
        }

        .login-btn {
            color: #1890ff;
            border: 1px solid #1890ff;
        }

        .register-btn {
            background-color: #1890ff;
            color: white;
        }

        /* 首页 */
        .hero {
            background: linear-gradient(135deg, #64b5f6, #1976d2);
            color: white;
            text-align: center;
            padding: 80px 0;
        }

        .hero h2 {
            font-size: 36px;
            margin-bottom: 10px;
        }

        .hero p {
            font-size: 18px;
            margin-bottom: 30px;
        }

        .search-bar {
            /*display: flex;*/
            max-width: 500px;
            margin: 0 auto;
        }

        .search-bar input {
            flex: 1;
            padding: 12px 15px;
            border: none;
            border-radius: 4px 0 0 4px;
            font-size: 16px;
        }

        .search-bar button {
            background-color: #1890ff;
            color: white;
            border: none;
            padding: 0 20px;
            border-radius: 0 4px 4px 0;
            cursor: pointer;
        }

        .featured {
            margin: 40px 0;
        }

        .featured h3 {
            font-size: 24px;
            margin-bottom: 20px;
            text-align: center;
        }

        .product-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        
        .product-grid a {
            text-decoration: none;
            color: black;
        }

        .product-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
            cursor: pointer;
        }

        .product-card:hover {
            transform: translateY(-5px);
        }

        .product-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .product-card h4, .product-card p {
            padding: 15px;
        }
        
        .product-card h4{
            text-align: center;
        }

        .service-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
            gap: 20px;
        }

        .service-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            display: flex;
            cursor: pointer;
        }

        .service-card img {
            width: 150px;
            height: 150px;
            object-fit: cover;
        }

        .service-info {
            flex: 1;
            padding: 15px;
        }

        .service-info h4 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .service-info p {
            font-size: 14px;
            color: #666;
            margin-bottom: 15px;
        }

        .service-info button {
            background-color: #1890ff;
            color: white;
            border: none;
            padding: 8px 15px;
            border-radius: 4px;
            cursor: pointer;
        }

        /* 产品展示页 */
        .filter-bar {
            display: flex;
            justify-content: space-between;
            margin-bottom: 30px;
        }

        .filter-group {
            display: flex;
            align-items: center;
        }

        .filter-group label {
            margin-right: 10px;
            font-weight: 500;
        }

        .filter-group select {
            padding: 8px 15px;
            border: 1px solid #ddd;
            border-radius: 4px;
        }

        .pagination {
            display: flex;
            justify-content: center;
            margin-top: 40px;
        }

        .pagination button {
            width: 40px;
            height: 40px;
            margin: 0 5px;
            border: 1px solid #ddd;
            background-color: white;
            border-radius: 4px;
            cursor: pointer;
        }

        .pagination button.active {
            background-color: #1890ff;
            color: white;
            border-color: #1890ff;
        }

        /* 解决方案页 */
        .solution-tabs {
            display: flex;
            justify-content: center;
            margin-bottom: 30px;
        }

        .tab {
            padding: 10px 20px;
            background-color: white;
            border: 1px solid #ddd;
            border-radius: 4px;
            margin: 0 5px;
            cursor: pointer;
        }

        .tab.active {
            background-color: #1890ff;
            color: white;
            border-color: #1890ff;
        }

        .case-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
            justify-items: center;
        }

        .case-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            width: 85%;
            text-align: center;
        }

        .case-header {
            display: flex;
            align-items: center;
            padding: 15px;
        }

        .case-header img {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            margin-right: 15px;
        }

        .case-info h4 {
            font-size: 16px;
            margin-bottom: 5px;
        }

        .case-info p {
            font-size: 12px;
            color: #999;
        }

        .case-content {
            padding: 0 15px 15px;
        }

        .case-content h3 {
            font-size: 18px;
            margin-bottom: 10px;
        }

        .case-content p {
            margin-bottom: 15px;
        }

        .case-content img {
            width: 100%;
            border-radius: 8px;
        }

        .case-footer {
            display: flex;
            padding: 15px;
            border-top: 1px solid #eee;
        }

        .case-footer button {
            background: none;
            border: none;
            margin-right: 20px;
            color: #666;
            cursor: pointer;
        }

        .case-footer button:hover {
            color: #1890ff;
        }

        .create-case-btn {
            display: block;
            width: 200px;
            margin: 40px auto;
            padding: 12px 20px;
            background-color: #1890ff;
            color: white;
            border: none;
            border-radius: 4px;
            font-size: 16px;
            cursor: pointer;
        }

        /* 关于我们页 */
        .about-content {
            background-color: white;
            padding: 40px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            margin-top: 40px;
            text-align: center;
        }

        .about-content p {
            margin-bottom: 20px;
            line-height: 1.8;
        }

        /* 登录和注册页 */
        .auth-container {
            max-width: 400px;
            margin: 80px auto;
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .auth-header {
            text-align: center;
            padding: 30px 0 20px;
        }

        .auth-header h2 {
            font-size: 24px;
            margin-bottom: 10px;
        }

        .auth-header p {
            color: #666;
        }

        .auth-form {
            padding: 0 30px 30px;
        }

        .input-group {
            margin-bottom: 20px;
        }

        .input-group input {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 14px;
        }

        .auth-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 30px;
        }

        .auth-footer a {
            color: #1890ff;
            text-decoration: none;
        }

        .login-btn, .register-btn {
            background-color: #1890ff;
            color: white;
            border: none;
            padding: 10px 20px;
            border-radius: 4px;
            cursor: pointer;
        }

        /* 页脚 */
        footer {
            background-color: #333;
            color: white;
            padding: 50px 0 20px;
            margin-top: 80px;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }

        .footer-logo h2 {
            font-size: 24px;
            margin-bottom: 10px;
        }

        .footer-links ul {
            list-style: none;
            margin-top: 15px;
        }

        .footer-links ul li {
            margin-bottom: 10px;
        }

        .footer-links ul li a {
            color: #ccc;
            text-decoration: none;
        }

        .footer-contact p {
            margin-bottom: 10px;
            color: #ccc;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
        }

        /* 响应式设计 小屏幕 */
        @media (max-width: 600px) {
            header .container {
                flex-direction: column;
            }
            
            nav ul {
                margin: 20px 0;
            }
            
            .service-list {
                grid-template-columns: 1fr;
            }
            
            .case-footer {
                flex-wrap: wrap;
            }
            
            nav ul li a {
               padding: 8px 10px;
            }
            nav ul li {
              margin-left: 12px;
           }
        }
        
        /* 响应式设计 中等屏幕 */
        @media (min - width: 601px) and (max - width: 900px) {
              nav ul li a {
                padding: 8px 10px;
              }
              nav ul li {
                margin-left: 12px;
              }
        }
        
        /* 响应式设计 大屏幕 */
        @media (min - width: 901px) {
              nav ul li a {
                padding: 8px 10px;
              }
              nav ul li {
                margin-left: 12px;
              }
        }

        /* 模块样式 */
        .section {
            padding: 60px 0;
            scroll-margin-top: 80px;
        }

        #home {
            background: linear-gradient(135deg, #f5f7fa, #e4e8f0);
        }

        #products {
            background-color: white;
        }

        #solutions {
            background-color: #f9f9f9;
        }

        #about {
            background-color: white;
        }
        
        .loading-text {
            font-size: 32px;
        }
        
        .loading-text span {
            display: inline-block;
            animation: up-down 1.5s ease-in-out infinite;
            animation-delay: calc(0.1s * var(--i));
        }
        
        @keyframes up-down {
            0% {
                transform: translateY(0px);
            }
            20% {
                transform: translateY(-24px);
            }
            40%,
            100% {
                transform: translateY(0px);
            }
        }
        
        /* 标签页内容 */
        .tab-content {
            display: none;
        }
        
        .tab-content.active {
            display: block;
        }
        
        
        
        
        
      
      
/* 产品卡片样式 */
        .product-card {
            position: relative;
            transition: transform 0.3s ease;
            margin-bottom: 20px;
            overflow: visible; /* 允许内容超出卡片边界 */
            border-radius: 10px;
            background-color: white;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            cursor: pointer; /* 添加鼠标指针样式 */
            z-index: 1;
        }

        .product-card:hover {
            transform: translateY(-5px);
        }

        /* 图片容器样式 */
        .product-images {
            position: absolute;
            top: -220px; /* 将图片容器放置在卡片上方 */
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            justify-content: center;
            align-items: center;
            display: none; /* 默认隐藏 */
            z-index: 99999;
            background-color: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(10px);
            border-radius: 10px;
            padding: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
            width: max-content; /* 宽度根据内容自动调整 */
            white-space: nowrap; /* 防止换行 */
        }

        /* 卡片内容样式 */
        .product-card-content {
            position: relative;
            z-index: 1;
            padding: 20px;
        }

        .product-card-content img {
            width: 100%;
            height: auto;
            margin-bottom: 15px;
        }

        .product-card-content h4 {
            margin: 0 0 10px 0;
        }

        .product-card-content p {
            margin: 0;
            color: #666;
        }

        /* 卡片图片容器内的图片样式 */
        .product-images img {
            height: 200px;
            width: auto;
            object-fit: contain;
            border-radius: 8px;
            opacity: 0.8;
            transition: all 0.3s ease; /* 添加过渡效果 */
            margin: 0 10px;
            transform: scale(1); /* 初始缩放比例 */
        }

        .product-images img:hover {
            opacity: 1;
            transform: scale(2.0); /* 鼠标滑过时放大到1.1倍 */
            z-index: 9999;
        }