/* Banner图 */
        .service-banner {
            height: 300px;
            background-image: url('https://picsum.photos/id/28/1920/1080');
            background-size: cover;
            background-position: center;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        
        .service-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;
            text-align: center;
            color: var(--light-text);
            max-width: 800px;
            padding: 20px;
        }
        
        .banner-content h1 {
            font-size: 42px;
            margin-bottom: 15px;
            animation: fadeInDown 1s ease;
        }
        
        .banner-content p {
            font-size: 18px;
            animation: fadeInUp 1s ease 0.3s forwards;
            opacity: 0;
        }
        
        /* 服务内容区域 */
        .service-content {
            padding: 80px 0;
        }
        
        .container {
            max-width: 1200px;
        }
        
        /* 左侧菜单区域 */
        .service-sidebar {
            background-color: var(--secondary-color);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        
        .service-categories {
            padding: 0;
            margin: 0;
            list-style: none;
        }
        
        .category-item {
            border-bottom: 1px solid #e0e0e0;
        }
        
        .category-link {
            display: block;
            padding: 18px 25px;
            color: var(--text-color);
            text-decoration: none;
            transition: var(--transition);
            font-weight: 500;
            position: relative;
        }
        
        .category-link::after {
            content: '\f054';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 20px;
            transition: var(--transition);
        }
        
        .category-item.active .category-link,
        .category-link:hover {
            background-color: var(--primary-color);
            color: var(--light-text);
            padding-left: 30px;
        }
        
        .category-item.active .category-link::after,
        .category-link:hover::after {
            transform: rotate(90deg);
        }
        
        /* 推荐新闻 */
        .sidebar-news {
            padding: 25px;
            border-bottom: 1px solid #e0e0e0;
        }
        
        .sidebar-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--primary-color);
            position: relative;
            padding-bottom: 10px;
        }
        
        .sidebar-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 40px;
            height: 2px;
            background-color: var(--primary-color);
        }
        
        .news-list {
            padding: 0;
            margin: 0;
            list-style: none;
        }
        
        .news-item {
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px dashed #e0e0e0;
        }
        
        .news-item:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        
        .news-link {
            color: var(--text-color);
            text-decoration: none;
            transition: var(--transition);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .news-link:hover {
            color: var(--primary-color);
            padding-left: 5px;
        }
        
        .news-date {
            font-size: 12px;
            color: var(--text-light);
            margin-top: 5px;
        }
        
        /* 联系我们 */
        .sidebar-contact {
            padding: 25px;
        }
        
        .contact-item {
            margin-bottom: 15px;
            display: flex;
            align-items: flex-start;
        }
        
        .contact-icon {
            width: 30px;
            height: 30px;
            background-color: rgba(26, 111, 196, 0.1);
            color: var(--primary-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            flex-shrink: 0;
        }
        
        .contact-info {
            flex-grow: 1;
        }
        
        .contact-info p {
            margin: 0;
        }
        
        /* 右侧服务内容展示 */
        .service-display {
            padding-left: 30px;
        }
        
        .service-header {
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid #e0e0e0;
        }
        
        .service-header h2 {
            font-size: 24px;
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        
        .service-path {
            color: var(--text-light);
            font-size: 14px;
        }
        
        .service-path a {
            color: var(--text-light);
            text-decoration: none;
        }
        
        .service-path a:hover {
            color: var(--primary-color);
        }
        
        /* 产品网格布局 */
        .products-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .product-card {
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            cursor: pointer;
            background-color: var(--light-text);
        }
        
        .product-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }
        
        .product-image {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        
        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        
        .product-card:hover .product-image img {
            transform: scale(1.05);
        }
        
        .product-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(26, 111, 196, 0.1);
            opacity: 0;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .product-card:hover .product-overlay {
            opacity: 1;
        }
        
        .product-view {
            color: var(--primary-color);
            background-color: var(--light-text);
            border-radius: 50%;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            transform: scale(0.8);
            transition: var(--transition);
        }
        
        .product-card:hover .product-view {
            transform: scale(1);
        }
        
        .product-info {
            padding: 20px;
            text-align: center;
        }
        
        .product-name {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-color);
            transition: var(--transition);
        }
        
        .product-card:hover .product-name {
            color: var(--primary-color);
        }
        
        /* 产品详情区域 */
        .product-detail {
            display: none;
            background-color: var(--light-text);
            border-radius: var(--border-radius);
            box-shadow: var(--shadow-md);
            padding: 30px;
            margin-bottom: 40px;
        }
        
        .product-detail.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }
        
        .detail-header {
            margin-bottom: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .detail-title {
            font-size: 22px;
            color: var(--primary-color);
            margin: 0;
        }
        
        .detail-close {
            color: var(--text-light);
            background-color: var(--primary-color);
            border: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .detail-close:hover {
            background-color: var(--primary-dark);
            transform: rotate(90deg);
        }
        
        .detail-content {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
        }
        
        .detail-gallery {
            flex: 1;
            min-width: 300px;
        }
        
        .main-image-container {
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            margin-bottom: 20px;
            position: relative;
            cursor: pointer;
        }
        
        .main-image {
            width: 100%;
            height: auto;
            display: block;
            transition: var(--transition);
        }
        
        .main-image-container:hover .main-image {
            transform: scale(1.03);
        }
        
        .thumbnail-container {
            display: flex;
            gap: 15px;
            overflow-x: auto;
            padding-bottom: 10px;
        }
        
        .thumbnail-item {
            width: 120px;
            height: 80px;
            border-radius: var(--border-radius);
            overflow: hidden;
            cursor: pointer;
            opacity: 0.7;
            transition: var(--transition);
            flex-shrink: 0;
            box-shadow: var(--shadow-sm);
        }
        
        .thumbnail-item.active,
        .thumbnail-item:hover {
            opacity: 1;
            transform: translateY(-3px);
        }
        
        .thumbnail-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .detail-description {
            flex: 1;
            min-width: 300px;
        }
        
        .detail-description h3 {
            font-size: 20px;
            margin-bottom: 20px;
            color: var(--primary-color);
        }
        
        .detail-item {
            margin-bottom: 20px;
        }
        
        .detail-item h4 {
            font-size: 16px;
            margin-bottom: 10px;
            font-weight: 600;
        }
        
        .detail-item p {
            margin-bottom: 10px;
            line-height: 1.8;
        }
        
        .feature-list {
            padding-left: 20px;
        }
        
        .feature-list li {
            margin-bottom: 8px;
            position: relative;
            padding-left: 10px;
        }
        
        .feature-list li::before {
            content: '•';
            color: var(--primary-color);
            font-weight: bold;
            position: absolute;
            left: -10px;
        }
        
        /* 服务内容切换的各个面板 */
        .service-panel {
            display: none;
        }
        
        .service-panel.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }
		/* 图片查看器 */
		.image-viewer {
		    position: fixed;
		    top: 0;
		    left: 0;
		    width: 100%;
		    height: 100%;
		    background-color: rgba(0, 0, 0, 0.9);
		    display: flex;
		    align-items: center;
		    justify-content: center;
		    z-index: 2000;
		    opacity: 0;
		    visibility: hidden;
		    transition: var(--transition);
		}
		
		.image-viewer.show {
		    opacity: 1;
		    visibility: visible;
		}
		
		.viewer-content {
		    max-width: 90%;
		    max-height: 90%;
		    position: relative;
		}
		
		.viewer-image {
		    max-width: 100%;
		    max-height: 80vh;
		    display: block;
		    margin: 0 auto;
		}
		
		.viewer-close {
		    position: absolute;
		    top: -40px;
		    right: 0;
		    color: white;
		    font-size: 30px;
		    cursor: pointer;
		    transition: var(--transition);
		}
		
		.viewer-close:hover {
		    transform: rotate(90deg);
		}
		
		.viewer-prev, .viewer-next {
		    position: absolute;
		    top: 50%;
		    transform: translateY(-50%);
		    color: white;
		    font-size: 40px;
		    cursor: pointer;
		    transition: var(--transition);
		    background-color: rgba(0, 0, 0, 0.3);
		    width: 60px;
		    height: 60px;
		    border-radius: 50%;
		    display: flex;
		    align-items: center;
		    justify-content: center;
		}
		
		.viewer-prev {
		    left: -80px;
		}
		
		.viewer-next {
		    right: -80px;
		}
		
		.viewer-prev:hover, .viewer-next:hover {
		    background-color: rgba(0, 0, 0, 0.5);
		}
		
		/* 动画效果 */
		@keyframes fadeInDown {
		    from {
		        opacity: 0;
		        transform: translateY(-20px);
		    }
		    to {
		        opacity: 1;
		        transform: translateY(0);
		    }
		}
		
		@keyframes fadeInUp {
		    from {
		        opacity: 0;
		        transform: translateY(20px);
		    }
		    to {
		        opacity: 1;
		        transform: translateY(0);
		    }
		}
		
		@keyframes fadeIn {
		    from {
		        opacity: 0;
		    }
		    to {
		        opacity: 1;
		    }
		}
		
		/* 响应式调整 */
		@media (max-width: 992px) {
		    .navbar .nav-link {
		        padding: 18px 20px;
		        margin: 0 3px;
		    }
		    
		    .service-banner {
		        height: 250px;
		    }
		    
		    .banner-content h1 {
		        font-size: 36px;
		    }
		    
		    .service-display {
		        padding-left: 0;
		        margin-top: 40px;
		    }
		    
		    .products-grid {
		        grid-template-columns: repeat(2, 1fr);
		    }
		    
		    .viewer-prev {
		        left: 20px;
		    }
		    
		    .viewer-next {
		        right: 20px;
		    }
		}
		
		@media (max-width: 768px) {
		    .service-banner {
		        height: 200px;
		    }
		    
		    .banner-content h1 {
		        font-size: 30px;
		    }
		    
		    .banner-content p {
		        font-size: 16px;
		    }
		    
		    .company-name {
		        font-size: 20px;
		    }
		    
		    .phone-number {
		        font-size: 18px;
		    }
		    
		    .section-title {
		        font-size: 24px;
		    }
		    
		    .navbar .nav-link {
		        padding: 15px 15px;
		        margin: 0;
		    }
		    
		    .thumbnail-item {
		        width: 100px;
		        height: 70px;
		    }
		    
		    .detail-content {
		        flex-direction: column;
		    }
		}
		
		@media (max-width: 576px) {
		    .service-banner {
		        height: 180px;
		    }
		    
		    .banner-content h1 {
		        font-size: 24px;
		    }
		    
		    .banner-content p {
		        font-size: 14px;
		    }
		    
		    .logo {
		        width: 60px;
		        height: 60px;
		        font-size: 18px;
		    }
		    
		    .company-name {
		        font-size: 18px;
		    }
		    
		    .company-desc {
		        font-size: 12px;
		    }
		    
		    .phone-icon {
		        font-size: 20px;
		    }
		    
		    .phone-number {
		        font-size: 16px;
		    }
		    
		    .category-link {
		        padding: 15px 20px;
		    }
		    
		    .sidebar-news, .sidebar-contact {
		        padding: 20px;
		    }
		    
		    .products-grid {
		        grid-template-columns: 1fr;
		    }
		    
		    .thumbnail-item {
		        width: 80px;
		        height: 60px;
		    }
		    
		    .footer-qrcode {
		        flex-direction: column;
		        gap: 15px;
		    }
		    
		    .qrcode-item {
		        margin: 0 auto;
		    }
		    
		    .viewer-prev, .viewer-next {
		        width: 40px;
		        height: 40px;
		        font-size: 24px;
		    }
		}