/* 基础重置 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            color: #333;
            line-height: 1.6;
            background-color: #f8f9fa;
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }
        
        ul {
            list-style: none;
        }
        
        .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: 100;
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
        
        .logo img {
            height: 50px;
            margin-right: 10px;
        }
        
        .logo-text {
            font-size: 24px;
            font-weight: 700;
            color: #0056b3;
        }
        
        .logo-subtext {
            font-size: 14px;
            color: #666;
            margin-top: 2px;
        }
        
        /* 导航菜单 */
        nav ul {
            display: flex;
        }
        
        nav li {
            margin-left: 30px;
        }
        
        nav a {
            font-weight: 600;
            font-size: 16px;
            padding: 5px 0;
            position: relative;
        }
        
        nav a:hover, nav a.active {
            color: #0056b3;
        }
        
        nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #0056b3;
            transition: width 0.3s ease;
        }
        
        nav a:hover::after, nav a.active::after {
            width: 100%;
        }
        
        .mobile-menu-btn {
            display: none;
            font-size: 24px;
            cursor: pointer;
            color: #0056b3;
        }
        
        /* 轮播图样式 */
        .banner-container {
            position: relative;
            width: 100%;
            overflow: hidden;
            margin-bottom: 40px;
        }
        
        .banner-slider {
            display: flex;
            transition: transform 0.5s ease-in-out;
            height: 400px;
        }
        
        .banner-slide {
            min-width: 100%;
            height: 100%;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .banner-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .banner-content {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
            color: white;
            padding: 0 15%;
            background: rgba(0, 0, 0, 0.4);
        }
        
        .banner-content h1 {
            font-size: 42px;
            margin-bottom: 15px;
            font-weight: 700;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
        }
        
        .banner-content p {
            font-size: 18px;
            max-width: 800px;
            opacity: 0.9;
            margin-bottom: 20px;
        }
        
        .banner-btn {
            display: inline-block;
            background-color: #0056b3;
            color: white;
            padding: 12px 30px;
            border-radius: 5px;
            font-weight: 600;
            font-size: 16px;
            margin-top: 10px;
            transition: background-color 0.3s ease;
        }
        
        .banner-btn:hover {
            background-color: #004494;
        }
        
        .banner-controls {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
        }
        
        .banner-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.5);
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        
        .banner-dot.active {
            background-color: #0056b3;
        }
        
        .banner-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background-color: rgba(0, 0, 0, 0.5);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            cursor: pointer;
            transition: background-color 0.3s ease;
            z-index: 10;
        }
        
        .banner-arrow:hover {
            background-color: rgba(0, 0, 0, 0.7);
        }
        
        .banner-arrow.prev {
            left: 20px;
        }
        
        .banner-arrow.next {
            right: 20px;
        }
        
        /* 主要内容区域 */
        .main-content {
            padding: 30px 0 60px;
        }
        
        .page-layout {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
        }
        
        /* 左侧导航栏 */
        .sidebar {
            flex: 0 0 250px;
            background: white;
            border-radius: 8px;
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .sidebar-title {
            font-size: 22px;
            color: #0056b3;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 2px solid #eaeaea;
            position: relative;
        }
        
        .sidebar-title::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 60px;
            height: 2px;
            background-color: #0056b3;
        }
        
        .sidebar-menu li {
            margin-bottom: 8px;
        }
        
        .sidebar-menu a {
            display: block;
            padding: 14px 18px;
            border-radius: 5px;
            color: #555;
            font-size: 15px;
            transition: all 0.3s ease;
            border-left: 3px solid transparent;
        }
        
        .sidebar-menu a:hover, .sidebar-menu a.active {
            background-color: #f0f7ff;
            color: #0056b3;
            border-left-color: #0056b3;
            padding-left: 25px;
        }
        
        .sidebar-menu i {
            margin-right: 10px;
            width: 18px;
            text-align: center;
        }
        
        .sidebar-contact {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #eaeaea;
        }
        
        .sidebar-contact h4 {
            font-size: 16px;
            color: #0056b3;
            margin-bottom: 15px;
        }
        
        .sidebar-contact p {
            font-size: 14px;
            color: #666;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
        }
        
        .sidebar-contact i {
            margin-right: 8px;
            color: #0056b3;
            width: 16px;
        }
        
        /* 右侧内容区 */
        .content-area {
            flex: 1;
            min-width: 300px;
            background: white;
            border-radius: 8px;
            padding: 30px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        /* 产品标题 */
        .product-header {
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid #eaeaea;
        }
        
        .product-title {
            font-size: 28px;
            color: #333;
            margin-bottom: 10px;
        }
        
        .product-subtitle {
            color: #0056b3;
            font-size: 16px;
            margin-bottom: 15px;
        }
        
        .product-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: #666;
            font-size: 14px;
        }
        
        .product-meta span {
            display: flex;
            align-items: center;
        }
        
        .product-meta i {
            margin-right: 5px;
            color: #0056b3;
        }
        
        /* 产品图片区 */
        .product-images {
            margin-bottom: 30px;
        }
        
        .main-product-image {
            width: 100%;
            height: 400px;
            border-radius: 8px;
            overflow: hidden;
            margin-bottom: 15px;
        }
        
        .main-product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .main-product-image:hover img {
            transform: scale(1.02);
        }
        
        .product-thumbnails {
            display: flex;
            gap: 10px;
            overflow-x: auto;
            padding-bottom: 10px;
        }
        
        .product-thumbnail {
            width: 100px;
            height: 80px;
            border-radius: 5px;
            overflow: hidden;
            cursor: pointer;
            opacity: 0.7;
            transition: all 0.3s ease;
            flex-shrink: 0;
        }
        
        .product-thumbnail:hover, .product-thumbnail.active {
            opacity: 1;
            box-shadow: 0 0 0 2px #0056b3;
        }
        
        .product-thumbnail img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        /* 产品详情 */
        .product-details {
            margin-bottom: 40px;
        }
        
        .detail-section {
            margin-bottom: 30px;
        }
        
        .detail-section h3 {
            font-size: 20px;
            color: #0056b3;
            margin-bottom: 15px;
            padding-bottom: 8px;
            border-bottom: 1px solid #eaeaea;
        }
        
        .detail-section p {
            margin-bottom: 15px;
            line-height: 1.8;
        }
        
        .feature-list {
            padding-left: 20px;
        }
        
        .feature-list li {
            margin-bottom: 10px;
            position: relative;
            padding-left: 20px;
        }
        
        .feature-list li:before {
            content: '✓';
            position: absolute;
            left: 0;
            color: #0056b3;
            font-weight: bold;
        }
        
        /* 规格参数 */
        .specifications table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 15px;
        }
        
        .specifications th, .specifications td {
            padding: 12px 15px;
            text-align: left;
            border-bottom: 1px solid #eaeaea;
        }
        
        .specifications th {
            background-color: #f8f9fa;
            font-weight: 600;
            color: #333;
            width: 30%;
        }
        
        .specifications tr:hover {
            background-color: #f8f9fa;
        }
        
        /* 产品操作 */
        .product-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid #eaeaea;
        }
        
        .action-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 25px;
            border-radius: 5px;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .action-btn.primary {
            background-color: #0056b3;
            color: white;
            border: 2px solid #0056b3;
        }
        
        .action-btn.primary:hover {
            background-color: #004494;
            border-color: #004494;
        }
        
        .action-btn.secondary {
            background-color: white;
            color: #0056b3;
            border: 2px solid #0056b3;
        }
        
        .action-btn.secondary:hover {
            background-color: #f0f7ff;
        }
        
        .action-btn i {
            margin-right: 8px;
        }
        
        /* 相关产品 */
        .related-products {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 1px solid #eaeaea;
        }
        
        .related-title {
            font-size: 22px;
            color: #0056b3;
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 2px solid #eaeaea;
            position: relative;
        }
        
        .related-title::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 60px;
            height: 2px;
            background-color: #0056b3;
        }
        
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        
        .related-card {
            background: #f8f9fa;
            border-radius: 8px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .related-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .related-image {
            height: 150px;
            overflow: hidden;
        }
        
        .related-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .related-card:hover .related-image img {
            transform: scale(1.05);
        }
        
        .related-info {
            padding: 15px;
        }
        
        .related-name {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 8px;
            color: #333;
        }
        
        .related-link {
            color: #0056b3;
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
        }
        
        .related-link i {
            margin-left: 5px;
            font-size: 12px;
            transition: transform 0.3s ease;
        }
        
        .related-link:hover i {
            transform: translateX(3px);
        }
        
        /* 页脚样式 */
        footer {
            background-color: #2c3e50;
            color: #ecf0f1;
            padding: 50px 0 20px;
            margin-top: 60px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
        }
        
        .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: white;
            margin-bottom: 10px;
        }
        
        .footer-about p {
            margin-bottom: 20px;
            opacity: 0.8;
        }
        
        .footer-links h3, .footer-contact h3 {
            font-size: 18px;
            margin-bottom: 20px;
            color: white;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-links h3::after, .footer-contact h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: #0056b3;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a:hover {
            color: #0056b3;
            padding-left: 5px;
        }
        
        .footer-contact p {
            margin-bottom: 10px;
            opacity: 0.8;
            display: flex;
            align-items: center;
        }
        
        .footer-contact i {
            margin-right: 10px;
            color: #0056b3;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 14px;
            opacity: 0.7;
        }
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .banner-content {
                padding: 0 10%;
            }
            
            .banner-content h1 {
                font-size: 36px;
            }
        }
        
        @media (max-width: 992px) {
            .banner-slider {
                height: 350px;
            }
            
            .banner-content h1 {
                font-size: 32px;
            }
            
            .banner-content p {
                font-size: 16px;
            }
            
            .page-layout {
                flex-direction: column;
            }
            
            .sidebar {
                /* width: 100%; */
				display: none;
            }
            
            .banner-arrow {
                width: 40px;
                height: 40px;
                font-size: 20px;
            }
            
            .main-product-image {
                height: 350px;
            }
        }
        
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            
            nav {
                width: 100%;
                order: 3;
                margin-top: 15px;
                display: none;
            }
            
            nav.show {
                display: block;
            }
            
            nav ul {
                flex-direction: column;
            }
            
            nav li {
                margin: 0;
                border-bottom: 1px solid #eee;
            }
            
            nav a {
                display: block;
                padding: 12px 0;
            }
            .sidebar {
                /* width: 100%; */
            	display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .banner-slider {
                height: 300px;
            }
            
            .banner-content {
                padding: 0 5%;
            }
            
            .banner-content h1 {
                font-size: 28px;
            }
            
            .banner-content p {
                font-size: 15px;
            }
            
            .product-title {
                font-size: 24px;
            }
            
            .main-product-image {
                height: 300px;
            }
            
            .product-actions {
                flex-direction: column;
            }
            
            .action-btn {
                width: 100%;
                justify-content: center;
            }
        }
        
        @media (max-width: 480px) {
            .logo-text {
                font-size: 20px;
            }
            
            .banner-slider {
                height: 250px;
            }
            
            .banner-content h1 {
                font-size: 24px;
            }
            
            .banner-btn {
                padding: 10px 20px;
                font-size: 14px;
            }
            .sidebar {
                /* width: 100%; */
            	display: none;
            }
            
            .content-area {
                padding: 20px;
            }
            
            .specifications th, .specifications td {
                padding: 8px 10px;
                font-size: 14px;
            }
            
            .related-grid {
                grid-template-columns: 1fr;
            }
        }