/* 基础样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
        }

        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        .a {
        	text-decoration:none;
        }

        /* 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;
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
            position: relative;
        }

        .logo {
            display: flex;
            align-items: center;
            z-index: 1001;
        }

        .logo i {
            font-size: 28px;
            color: #0066cc;
            margin-right: 10px;
        }

        .logo h1 {
            font-size: 24px;
            color: #333;
        }

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

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

        nav ul li a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            display: flex;
            align-items: center;
        }

        nav ul li a i {
            margin-left: 5px;
            font-size: 12px;
        }

        .dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            min-width: 150px;
            display: none;
            z-index: 1000;
        }

        nav ul li:hover .dropdown {
            display: block;
        }

        .dropdown li {
            margin: 0;
            width: 100%;
        }

        .dropdown li a {
            padding: 10px 15px;
            display: block;
            width: 100%;
        }

        .dropdown li a:hover {
            background-color: #f5f5f5;
        }

        /* 手机端导航栏样式 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: space-around;
            width: 30px;
            height: 25px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 0;
            z-index: 1001;
        }
        
        .menu-toggle span {
            width: 100%;
            height: 3px;
            background-color: #333;
            border-radius: 2px;
            transition: all 0.3s;
        }
        
        /* 页脚折叠样式 */
        .footer-section h3 {
            position: relative;
            cursor: pointer;
            margin-bottom: 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .footer-section h3 .toggle-icon {
            font-size: 14px;
            transition: transform 0.3s;
        }
        
        .footer-section.active h3 .toggle-icon {
            transform: rotate(180deg);
        }
        
        .footer-links {
            max-height: 500px;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        
        /* Contact Us 蓝色背景 */
        .contact-info {
            background-color: #e6f0ff;
            padding: 20px;
            border-radius: 8px;
            margin-top: 20px;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }
            
            nav {
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background-color: #fff;
                box-shadow: 0 5px 10px rgba(0,0,0,0.1);
                z-index: 1000;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
            }
            
            nav.active {
                max-height: 1000px; /* 增加最大高度以显示所有菜单项 */
            }
            
            nav ul {
                flex-direction: column;
                padding: 10px 0; /* 减少内边距 */
            }
            
            nav ul li {
                margin: 0;
                width: 100%;
            }
            
            nav ul li a {
                padding: 10px 20px; /* 减少内边距 */
                display: block;
                width: 100%;
            }
            
            /* 调整Product与About之间的距离 */
            nav ul li.has-dropdown {
                margin-bottom: 5px; /* 减少底部间距 */
            }
            
            .dropdown {
                position: static;
                box-shadow: none;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.3s ease;
                padding-left: 0;
                margin-top: 0; /* 移除顶部间距 */
            }
            
            nav ul li.active .dropdown {
                max-height: 500px;
            }
            
            /* 调整子菜单项的间距 */
            .dropdown li a {
                padding: 8px 20px 8px 30px; /* 减少子菜单项的内边距 */
            }
            
            .footer-section h3 .toggle-icon {
                display: inline-block;
            }
            
            .footer-section .footer-links {
                max-height: 0;
            }
            
            .footer-section.active .footer-links {
                max-height: 500px;
            }
            
            /* 手机端Contact Us蓝色背景 */
            .contact-info {
                background-color: #e6f0ff;
                padding: 15px;
                border-radius: 8px;
                margin-top: 20px;
            }
        }
        
        @media (min-width: 769px) {
            .footer-section h3 .toggle-icon {
                display: none !important;
            }
            
            .footer-section .footer-links {
                max-height: 500px !important;
            }
            
            /* 电脑端Contact Us蓝色背景 */
            .contact-info {
                background-color: #e6f0ff;
                padding: 25px;
                border-radius: 8px;
            }
        }

        /* 横幅滑块 */
        .banner {
            position: relative;
            height: 500px;
            overflow: hidden;
        }

        .slides {
            display: flex;
            width: 600%; /* 修改为600%以容纳6张幻灯片 */
            height: 100%;
            transition: transform 0.8s cubic-bezier(0.23, 1, 0.32, 1); /* 使用更平滑的缓动函数 */
        }

        .slide {
            width: 16.666%; /* 修改为16.666%以适应6张幻灯片 */
            height: 100%;
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
        }

        .slide-content {
            max-width: 500px;
            padding: 30px;
            background-color: rgba(255, 255, 255, 0.8);
            margin-left: 50px;
            border-radius: 5px;
        }

        .slide-content h2 {
            font-size: 32px;
            margin-bottom: 15px;
            color: #0066cc;
        }

        .slide-content p {
            margin-bottom: 20px;
        }

        .slider-nav {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
        }

        .slider-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.5);
            margin: 0 5px;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }

        .slider-dot.active {
            background-color: #fff;
        }

        /* 按钮样式 */
        .btn {
            display: inline-block;
            padding: 10px 20px;
            background-color: #0066cc;
            color: #fff;
            text-decoration: none;
            border-radius: 4px;
            font-weight: 500;
            transition: background-color 0.3s;
        }

        .btn:hover {
            background-color: #0055aa;
        }

        /* 产品部分 */
        #products {
            padding: 60px 0;
        }

        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-title h2 {
            font-size: 32px;
            margin-bottom: 15px;
            color: 333;
        }

        .section-title p {
            color: #666;
            max-width: 600px;
            margin: 0 auto;
        }

        .products {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }

        .product {
            background-color: #fff;
            border-radius: 5px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s;
        }

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

        .product-img {
            height: 200px;
            background-size: cover;
            background-position: center;
        }

        .product-content {
            padding: 20px;
        }

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

        .product-content p {
            color: #666;
            margin-bottom: 15px;
        }

        .product-price {
            font-size: 20px;
            font-weight: bold;
            color: #0066cc;
        }

        /* 关于部分 */
        #about {
            padding: 60px 0;
            background-color: #f9f9f9;
        }

        .about {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-img {
            height: 400px;
            background-size: cover;
            background-position: center;
            border-radius: 5px;
        }

        .about-content h2 {
            font-size: 32px;
            margin-bottom: 20px;
            color: #333;
        }

        .about-content p {
            margin-bottom: 25px;
            color: #666;
        }

        /* 目录部分 */
        #catalog {
            padding: 60px 0;
            text-align: center;
        }

        .catalog h2 {
            font-size: 32px;
            margin-bottom: 15px;
            color: #333;
        }

        .catalog p {
            margin-bottom: 25px;
            color: #666;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 反馈和联系部分 */
        #feedback-contact {
            padding: 60px 0;
            background-color: #f9f9f9;
        }

        .feedback-contact-container {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
        }

        .feedback h2, .contact-info h2 {
            font-size: 24px;
            margin-bottom: 20px;
            color: #333;
        }

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

        .form-group label {
            display: block;
            margin-bottom: 5px;
            font-weight: 500;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-family: inherit;
        }

        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }

        .contact-info p {
            margin-bottom: 15px;
            display: flex;
            align-items: center;
        }

        .contact-info i {
            margin-right: 10px;
            color: #0066cc;
        }

        /* 页脚 */
        footer {
            background-color: #333;
            color: #fff;
            padding: 60px 0 20px;
        }

        .footer-content {
            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;
            color: #fff;
        }

        .footer-column p {
            color: #ccc;
            margin-bottom: 20px;
        }

        .footer-column ul {
            list-style: none;
        }

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

        .footer-column ul li a {
            color: #ccc;
            text-decoration: none;
            transition: color 0.3s;
        }

        .footer-column ul li a:hover {
            color: #fff;
        }

        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #444;
            color: #ccc;
        }

        /* 响应式设计补充 */
        @media (max-width: 992px) {
            .about {
                grid-template-columns: 1fr;
            }
            
            .feedback-contact-container {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .header-content {
                flex-direction: row;
            }
            
            nav ul {
                margin-top: 0;
                flex-wrap: nowrap;
                justify-content: flex-start;
            }
            
            nav ul li {
                margin: 0;
            }
            
            .slide-content {
                margin-left: 20px;
                margin-right: 20px;
            }
            
            .banner {
                height: 400px;
            }
            
            .products {
                grid-template-columns: 1fr;
            }

            /* 手机端轮播图优化 */
            .slide {
                background-size: contain; /* 确保整张图片可见 */
                background-repeat: no-repeat; /* 防止重复 */
                background-position: center; /* 居中显示 */
                background-color: #f5f5f5; /* 添加背景色以防图片加载慢 */
            }
        }

        @media (max-width: 576px) {
            .slide-content {
                text-align: center;
                margin-left: 10px;
                margin-right: 10px;
                padding: 15px; /* 减少内边距 */
            }
            
            .slide-content h2 {
                font-size: 24px;
            }
            
            .banner {
                height: 350px;
            }

            /* 进一步优化小屏幕上的轮播图 */
            .slide {
                background-size: cover; /* 在小屏幕上恢复cover以填充空间 */
            }
        }
        /* 添加到 style.css 的 Categories 相关样式 */
	.categories-sidebar {
	    background-color: #e6f0ff; /* 蓝色背景 */
	    border-radius: 5px;
	    padding: 20px;
	    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
	    height: fit-content;
	}
	
	.categories-toggle {
	    position: relative;
	    cursor: pointer;
	    margin-bottom: 15px;
	    display: flex;
	    justify-content: space-between;
	    align-items: center;
	}
	
	.categories-toggle .toggle-icon {
	    font-size: 14px;
	    transition: transform 0.3s;
	}
	
	.categories-content {
	    max-height: 0;
	    overflow: hidden;
	    transition: max-height 0.3s ease;
	}
	
	.categories-content.active {
	    max-height: 500px;
	}
	
	/* 电脑端样式 */
	@media (min-width: 769px) {
	    .categories-toggle .toggle-icon {
	        display: none !important;
	    }
	    
	    .categories-content {
	        max-height: 500px !important;
	    }
	}