/* === Banner Styles === */
        .product-banner {
            position: relative;
            min-height: 500px;
            display: flex;
            align-items: center;
            padding-top: 80px;
            overflow: hidden;
        }
        
        .banner-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 1;
        }
        
        .banner-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6));
            z-index: 2;
        }
        
        .banner-content {
            position: relative;
            z-index: 3;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 5%;
            text-align: center;
            color: white;
            animation: fadeInUp 1s ease-out;
        }
        
        .banner-title {
            font-size: 4.5rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 20px;
            text-shadow: 0 2px 10px rgba(0,0,0,0.5);
        }
        
        .banner-subtitle {
            font-size: 1.5rem;
            max-width: 700px;
            margin: 0 auto 40px;
            line-height: 1.6;
        }
        
        /*.cta-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        
        .btn {
            padding: 15px 35px;
            border-radius: 50px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            font-size: 1rem;
        }
        
        .btn-primary {
            background: var(--primary-yellow);
            color: var(--primary-black);
            box-shadow: 0 4px 15px rgba(255, 193, 7, 0.3);
        }
        
        .btn-outline {
            background: transparent;
            color: white;
            border: 2px solid white;
        }
        
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
        }
        
        .btn-primary:hover {
            background: #ffb300;
        }
        
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
        }*/
        
        /* === Animation Keyframes === */
        /*@keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }*/
        
        /* === Responsive Adjustments === */
        @media (max-width: 992px) {
            .banner-title {
                font-size: 3.5rem;
            }
            
            .banner-subtitle {
                font-size: 1.3rem;
            }
        }
        
        @media (max-width: 768px) {
            .product-banner {
                height: 70vh;
                min-height: 400px;
            }
            
            .banner-title {
                font-size: 2.8rem;
            }
            
            .banner-subtitle {
                font-size: 1.1rem;
                margin-bottom: 30px;
            }
            
            /*.cta-buttons {
                flex-direction: column;
                align-items: center;
                gap: 15px;
            }
            
            .btn {
                width: 100%;
                max-width: 300px;
                justify-content: center;
            }*/
        }
        
        @media (max-width: 480px) {
            .product-banner {
                height: 60vh;
                min-height: 350px;
            }
            
            .banner-title {
                font-size: 2.2rem;
                margin-bottom: 15px;
            }
            
            .banner-subtitle {
                font-size: 1rem;
                margin-bottom: 25px;
            }
        }
/* === 面包屑导航样式 === */
        .breadcrumb-container {
            background-color: #f9f9f9;
            border-bottom: 1px solid #eee;
            padding: 12px 0;
            position: relative;
        }
        
        .breadcrumb {
            display: flex;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
            font-size: 15px;
            color: #555;
        }
        
        .breadcrumb a {
            
            text-decoration: none;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
        }
        
        .breadcrumb a:hover {
            color: #ff6b00;
            transform: translateY(-1px);
        }
        
        .breadcrumb .separator {
            margin: 0 10px;
            color: #aaa;
            font-size: 12px;
        }
        
        .breadcrumb .current-page {
            color: #333;
            font-weight: 600;
        }
        
        .breadcrumb a i {
            margin-right: 5px;
            font-size: 13px;
        }
        
        /* === 移动端优化 === */
        @media (max-width: 768px) {
            .breadcrumb-container {
                padding: 8px 0;
            }
            
            .breadcrumb {
                padding: 0 15px;
                font-size: 13px;
                flex-wrap: wrap;
            }
            
            .breadcrumb .separator {
                margin: 0 8px;
            }
            
            .breadcrumb a i {
                font-size: 11px;
            }
        }
        
        @media (max-width: 480px) {
            .breadcrumb {
                padding: 0 10px;
                font-size: 12px;
            }
            
            .breadcrumb .separator {
                margin: 0 6px;
                font-size: 10px;
            }
            
            .breadcrumb a i {
                display: none;
            }
        }
/* === Product Listing Section === */
        .product-listing {
            display: flex;
            gap: 30px;
            padding: 40px 0;
            position: relative;
        }
        
        /* === Sidebar Navigation === */
        .product-listing__sidebar {
            flex: 0 0 280px;
            background: white;
            border-radius: 10px;
            padding: 25px;
            box-shadow: var(--shadow);
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        
        .product-listing__sidebar h2 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--primary-color);
            color: var(--dark-color);
        }
        
        .sidebar-category {
            margin-bottom: 25px;
        }
        
        .sidebar-category h3 {
            font-size: 1.1rem;
            margin-bottom: 15px;
            color: var(--dark-color);
            display: flex;
            align-items: center;
			cursor: pointer;
			justify-content: space-between;
			padding: 10px 0;
        }
		.category-title {
		    display: flex;
		    align-items: center;
		    gap: 10px; /* 图标和文本间距 */
		}
        .sidebar-category .toggle-icon {
            transition: transform 0.3s ease;
			font-size: 0.8em;
        }
        
        .sidebar-category.expanded .toggle-icon {
            transform: rotate(90deg);
        }
        
        .sidebar-category h3 i {
            margin-right: 10px;
            color: var(--primary-color);
			
            overflow: hidden;
            transition: max-height 0.4s ease-out;
        }
        .sidebar-category.expanded .sidebar-links {
            max-height: 1000px; /* 足够大的值确保所有项可见 */
        }
        .sidebar-category h3 span {
            flex-grow: 1; /* 占据剩余空间 */
        }
        /* === 确保默认收起状态 === */
        .sidebar-category:not(.expanded) .sidebar-links {
            display: none;
        }
        .sidebar-links {
            list-style: none;
            padding-left: 10px;
        }
        
        .sidebar-links li {
            margin-bottom: 12px;
        }
        
        .sidebar-links a {
            text-decoration: none;
            color: var(--text-color);
            display: flex;
            align-items: center;
            padding: 8px 10px;
            border-radius: 5px;
            transition: var(--transition);
        }
        
        .sidebar-links a:hover {
            background: #fff5ee;
            color: var(--primary-color);
            padding-left: 15px;
        }
        
        .sidebar-links a.active {
            background: #fff5ee;
            color: var(--primary-color);
            font-weight: 600;
            border-left: 3px solid var(--primary-color);
        }
        
        .sidebar-links a i {
            margin-right: 10px;
            font-size: 0.9rem;
        }
        
        /* === Product Grid === */
        .product-listing__main {
            flex: 1;
        }
        
        .product-grid-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            flex-wrap: wrap;
            gap: 15px;
        }
        
        .product-grid-header h2 {
            font-size: 1.8rem;
            color: var(--dark-color);
        }
        
        .filter-controls {
            display: flex;
            gap: 15px;
        }
        
        .filter-select {
            padding: 10px 15px;
            border: 1px solid var(--border-color);
            border-radius: 5px;
            background: white;
            font-size: 0.95rem;
        }
        
        .inquire-button {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 10px 25px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .inquire-button:hover {
            background: #e55d00;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(255, 107, 0, 0.3);
        }
        
        /* === Product Grid === */
        .product-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
        }
        
        .product-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .product-image {
            height: 220px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #f8f9fa;
            position: relative;
        }
        
        .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .product-card:hover .product-image img {
            transform: scale(1.05);
        }
        
        .brand-tag {
            position: absolute;
            top: 15px;
            left: 15px;
            background: var(--primary-color);
            color: white;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            z-index: 2;
        }
        
        .product-info {
            padding: 20px;
        }
        
        .product-info h3 {
            font-size: 1.2rem;
            margin-bottom: 15px;
            color: var(--dark-color);
            height: 60px;
            overflow: hidden;
        }
        
        .product-info h3 a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        
        .product-info h3 a:hover {
            color: var(--primary-color);
        }
        
        .product-price {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border-color);
        }
        
        .price-tag {
            font-weight: 700;
            font-size: 1.3rem;
            color: #e53935;
        }
        
        .stock-tag {
            background: #e8f5e9;
            color: #2e7d32;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.85rem;
            font-weight: 600;
        }
        
        .product-icons {
            display: flex;
            justify-content: space-between;
            padding-top: 15px;
        }
        
        .product-icon {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 5px;
        }
        
        .product-icon i {
            width: 35px;
            height: 35px;
            background: #f5f7fa;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--primary-color);
        }
        
        .product-icon span {
            font-size: 0.8rem;
            text-align: center;
            color: #666;
        }
        
        /* === Pagination === */
        .pagination {
            display: flex;
            justify-content: center;
            margin-top: 50px;
        }
        
        .pagination-list {
            display: flex;
            list-style: none;
            gap: 10px;
        }
        
        .pagination-item {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 5px;
            background: white;
            box-shadow: var(--shadow);
            cursor: pointer;
            transition: var(--transition);
        }
        
        .pagination-item a {
            text-decoration: none;
            color: var(--text-color);
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .pagination-item:hover, 
        .pagination-item.active {
            background: var(--primary-color);
        }
        
        .pagination-item:hover a, 
        .pagination-item.active a {
            color: white;
        }
        
        /* === Mobile Responsiveness === */
        @media (max-width: 1200px) {
            .product-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        @media (max-width: 992px) {
            .product-listing {
                flex-direction: column;
            }
            
            .product-listing__sidebar {
                position: static;
                margin-bottom: 30px;
            }
            
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .filter-controls {
                flex-wrap: wrap;
            }
            
            .product-grid-header {
                flex-direction: column;
                align-items: flex-start;
            }
            
            .product-grid {
                grid-template-columns: 1fr;
            }
            
            .product-info h3 {
                height: auto;
            }
        }
        
        @media (max-width: 480px) {
            .pagination-list {
                gap: 5px;
            }
            
            .pagination-item {
                width: 35px;
                height: 35px;
                font-size: 0.9rem;
            }
        }