/* 产品分类导航 */
        .category-nav {
            position: sticky;
            top: 75px;
            background-color: white;
            z-index: 100;
            padding: 20px 0;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
            margin-bottom: 60px;
        }
        
        .category-nav-container {
            display: flex;
            justify-content: center;
            gap: 15px;
            flex-wrap: wrap;
        }
        
        .category-nav-item {
            background-color: #f8f9fa;
            padding: 12px 25px;
            border-radius: 30px;
            color: var(--primary-color);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
            border: 2px solid transparent;
        }
        
        .category-nav-item:hover {
            background-color: var(--secondary-color);
            color: white;
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(201, 169, 110, 0.2);
        }
        
        .category-nav-item.active {
            background-color: var(--secondary-color);
            color: white;
            border-color: var(--secondary-color);
        }
        
        /* 产品分类区域 */
        .product-category {
            padding: 80px 0;
        }
        
        .product-category:nth-child(even) {
            background-color: #f9f9f9;
        }
        
        .category-header {
            margin-bottom: 60px;
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            border-bottom: 2px solid var(--secondary-color);
            padding-bottom: 20px;
        }
        
        .category-title {
            font-size: 36px;
            color: var(--primary-color);
            font-weight: 700;
            display: flex;
            align-items: center;
        }
        
        .category-title .number {
            display: inline-block;
            width: 50px;
            height: 50px;
            background-color: var(--secondary-color);
            color: var(--primary-color);
            border-radius: 50%;
            text-align: center;
            line-height: 50px;
            font-weight: 700;
            margin-right: 15px;
        }
        
        .category-description {
            font-size: 18px;
            color: var(--gray-color);
            max-width: 800px;
            margin-bottom: 10px;
        }
        
        /* 产品网格 */
        .product-tag {
            position: absolute;
            top: 20px;
            left: 20px;
            background-color: var(--secondary-color);
            color: var(--primary-color);
            padding: 5px 15px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }
        
        .product-content {
            padding: 30px;
        }
        
        .product-content h3 {
            font-size: 22px;
            color: var(--primary-color);
            margin-bottom: 15px;
            font-weight: 600;
        }
        
        .product-content p {
            color: var(--gray-color);
            font-size: 15px;
            margin-bottom: 20px;
            line-height: 1.6;
        }
        
        .product-features {
            list-style: none;
            margin-bottom: 25px;
        }
        
        .product-features li {
            display: flex;
            align-items: center;
            margin-bottom: 8px;
            font-size: 14px;
            color: var(--gray-color);
        }
        
        .product-features i {
            color: var(--secondary-color);
            margin-right: 10px;
            font-size: 12px;
        }
        
        .product-link {
            display: inline-flex;
            align-items: center;
            color: var(--secondary-color);
            font-weight: 600;
            text-decoration: none;
            font-size: 15px;
            transition: var(--transition);
        }
        
        .product-link i {
            margin-left: 8px;
            transition: var(--transition);
        }
        
        .product-link:hover i {
            transform: translateX(5px);
        }
        
        /* 定制解决方案区域 */
        .custom-solution {
            padding: 100px 0;
            background: linear-gradient(135deg, rgba(10, 45, 70, 0.9) 0%, rgba(26, 95, 122, 0.9) 100%);
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .custom-solution:before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('../images/banner.webp') center/cover no-repeat;
            opacity: 0.1;
            z-index: 1;
        }
        
        .custom-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        
        .custom-content h2 {
            font-size: 42px;
            font-weight: 700;
            margin-bottom: 30px;
        }
        
        .custom-content p {
            font-size: 20px;
            opacity: 0.9;
            margin-bottom: 40px;
            line-height: 1.8;
        }
        
        .custom-features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 50px;
        }
        
        .custom-feature {
            text-align: center;
        }
        
        .custom-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(201, 169, 110, 0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: var(--secondary-color);
            font-size: 32px;
        }
        
        .custom-feature h3 {
            font-size: 20px;
            margin-bottom: 10px;
            font-weight: 600;
        }
        
        .custom-feature p {
            font-size: 14px;
            opacity: 0.8;
        }
        
        .custom-btn {
            display: inline-block;
            background-color: var(--secondary-color);
            color: var(--primary-color);
            padding: 18px 40px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 4px;
            text-decoration: none;
            transition: var(--transition);
        }
        
        .custom-btn:hover {
            background-color: #d8b87a;
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(201, 169, 110, 0.3);
        }
        
        /* CTA区域 */
        .products-cta {
            padding: 120px 0;
            background-color: #f9f9f9;
            text-align: center;
        }
        
        .cta-title {
            font-size: 42px;
            color: var(--primary-color);
            font-weight: 700;
            margin-bottom: 30px;
        }
        
        .cta-text {
            font-size: 20px;
            color: var(--gray-color);
            max-width: 800px;
            margin: 0 auto 50px;
        }
        
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        
        .cta-btn {
            padding: 18px 40px;
            font-size: 16px;
            font-weight: 600;
            border-radius: 4px;
            text-decoration: none;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }
        
        .cta-btn-primary {
            background-color: var(--secondary-color);
            color: var(--primary-color);
        }
        
        .cta-btn-primary:hover {
            background-color: #d8b87a;
            transform: translateY(-3px);
            box-shadow: 0 10px 25px rgba(201, 169, 110, 0.3);
        }
        
        .cta-btn-secondary {
            background-color: transparent;
            color: var(--primary-color);
            border: 2px solid var(--secondary-color);
        }
        
        .cta-btn-secondary:hover {
            background-color: rgba(201, 169, 110, 0.1);
            transform: translateY(-3px);
        }
		@media (max-width: 768px) {
.category-title {font-size: 25px;}
.category-nav {top: 65px;}
		}