/* 页面头部 */
        .page-header {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
            color: var(--white);
            padding: 180px 0 60px;
            text-align: center;
            margin-top: var(--header-height);
        }
        
        .breadcrumb {
            display: flex;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 0.9rem;
        }
        
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: var(--transition);
		    margin: 0 10px;
            color: rgba(255, 255, 255, 0.6);
        }
        
        .breadcrumb a:hover {
            color: var(--white);
        }
        
        .breadcrumb span {
            margin: 0 10px;
            color: rgba(255, 255, 255, 0.6);
        }
        
        .page-header h2 {
            font-size: 2.8rem;
            margin-bottom: 20px;
        }
        
        .page-header p {
            max-width: 700px;
            margin: 0 auto;
            opacity: 0.9;
            font-size: 1.1rem;
        }
        
        /* 产品详情 */
        .working-principle {
            display: flex;
            align-items: center;
            gap: 30px;
            margin: 40px 0;
            background: var(--white);
            padding: 30px;
            border-radius: var(--border-radius);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .principle-icon {
            flex-shrink: 0;
            width: 120px;
            height: 120px;
            background: rgba(0, 102, 204, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-blue);
            font-size: 3rem;
        }
        
        .principle-content {
            flex: 1;
        }
        
        .principle-content h3 {
            margin-top: 0;
        }
        .product-detail-section {
            padding: 25px 0;
        }

		   .product-detail-container {
            background: var(--white);
            border-radius: var(--border-radius);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            padding: 40px;
            margin-bottom: 40px;
        }
        
        .tab-content {
            display: block;
        }
        
        .tab-content h3 {
            color: var(--primary-dark);
            margin: 30px 0 20px;
            font-size: 1.2rem;
            position: relative;
            padding-bottom: 10px;
        }
        
        .tab-content h3:first-child {
            margin-top: 0;
        }
        
        .tab-content h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 3px;
            background: var(--accent);
        }
        
        .tab-content p {
            color: var(--mid-text);
            margin-bottom: 20px;
            font-size: 1.05rem;
        }
        
        .product-detail-container {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            margin-top: 30px;
        }
        
        .product-gallery {
            position: relative;
        }
        
        .main-image {
            background: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            height: 400px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            position: relative;
        }
        
        .main-image img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            transition: transform 0.3s ease;
        }
        
        .main-image:hover img {
            transform: scale(1.05);
        }
        
        .thumbnail-gallery {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
        }
        
        .thumbnail {
            height: 80px;
            border-radius: 8px;
            overflow: hidden;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition);
            position: relative;
        }
        
        .thumbnail.active {
            border-color: var(--accent);
        }
        
        .thumbnail::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.1);
            opacity: 0;
            transition: var(--transition);
        }
        
        .thumbnail:hover::after {
            opacity: 1;
        }
        
        .thumbnail img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .product-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--accent);
            color: var(--white);
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 500;
            z-index: 10;
        }
        
        .product-info-sidebar {
            position: sticky;
            top: calc(var(--header-height) + 20px);
            align-self: start;
        }
        
        .product-title {
		    text-align: center;
            font-size: 2rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
            line-height: 1.3;
        }
        
        .product-subtitle {
            color: var(--mid-text);
            font-size: 1.1rem;
            margin-bottom: 25px;
            line-height: 1.6;
        }
        
        .product-specs-highlight {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 25px;
            margin-bottom: 30px;
            box-shadow: var(--card-shadow);
        }
        
        .spec-highlight {
            display: flex;
            justify-content: space-between;
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border-color);
        }
        
        .spec-highlight:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }
        
        .spec-label {
            color: var(--mid-text);
        }
        
        .spec-value {
            color: var(--primary-dark);
            font-weight: 600;
        }
        
        .product-actions {
            display: flex;
            flex-direction: column;
            gap: 15px;
            margin-bottom: 30px;
        }
        
        .btn-large {
            padding: 16px 24px;
            font-size: 16px;
        }
        
        .btn-contact {
            background: var(--primary-blue);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        
        .btn-contact:hover {
            background: var(--primary-dark);
        }
        
        .product-features {
            margin-top: 40px;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-top: 25px;
        }
        
        .feature-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
            background: var(--white);
            padding: 20px;
            border-radius: var(--border-radius);
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }
        
        .feature-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--hover-shadow);
        }
        
        .feature-icon {
            width: 50px;
            height: 50px;
            background: rgba(0, 102, 204, 0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-blue);
            font-size: 1.2rem;
            flex-shrink: 0;
        }
        
        .feature-content h4 {
            margin-bottom: 8px;
            color: var(--primary-dark);
        }
        
        .feature-content p {
            color: var(--mid-text);
            font-size: 0.95rem;
            line-height: 1.6;
        }
        
        .product-tabs {
            margin-top: 60px;
        }
        
        .tabs-header {
            display: flex;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 30px;
        }
        
        .tab-btn {
		    font-size: 20px;
            padding: 15px 30px;
            font-weight: 500;
            color: var(--mid-text);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }
        
        .tab-btn.active {
            color: var(--primary-blue);
        }
        
        .tab-btn.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary-blue);
            border-radius: 3px 3px 0 0;
        }
        
        .tab-content {
            display: none;
        }
        
        .tab-content.active {
		    padding: 35px;
		    background-color: #fff;
            display: block;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        .specs-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }
        
        .specs-table th,
        .specs-table td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        
        .specs-table th {
            background: var(--light-bg);
            font-weight: 600;
            color: var(--primary-dark);
            width: 30%;
        }
        
        .applications-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .application-card {
            background: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }
        
        .application-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--hover-shadow);
        }
        
        .application-img {
            height: 180px;
            overflow: hidden;
        }
        
        .application-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .application-card:hover .application-img img {
            transform: scale(1.05);
        }
        
        .application-content {
            padding: 20px;
        }
        
        .application-content h3 {
            color: var(--primary-dark);
            margin-bottom: 10px;
        }
        
        .application-content p {
            color: var(--mid-text);
            line-height: 1.6;
        }
        
        .downloads-list {
            list-style: none;
        }
        
        .download-item {
            padding: 15px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        
        .download-item:last-child {
            border-bottom: none;
        }
        
        .download-info {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .download-icon {
            width: 40px;
            height: 40px;
            background: var(--light-bg);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-blue);
        }
        
        .download-details h4 {
            margin-bottom: 5px;
            color: var(--primary-dark);
        }
        
        .download-details span {
            font-size: 0.85rem;
            color: var(--light-text);
        }
        
        .download-btn {
            padding: 8px 16px;
            background: var(--light-bg);
            color: var(--primary-blue);
            border-radius: 4px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
        }
        
        .download-btn:hover {
            background: var(--primary-blue);
            color: var(--white);
        }
        
        .related-products {
            margin-top: 80px;
        }
        
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
            margin-top: 40px;
        }
        
        .product-card {
            background: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        
        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--hover-shadow);
        }
        
        .product-img {
            height: 200px;
            background-color: #eef2f7;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        
        .product-img img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
        }
        
        .product-info {
            padding: 20px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }
        
        .product-info h3 {
		    text-align: center;
            color: var(--primary-dark);
            margin-bottom: 10px;
            font-size: 1.2rem;
        }
        
        .product-info p {
            color: var(--mid-text);
            margin-bottom: 15px;
            line-height: 1.6;
            flex-grow: 1;
            font-size: 0.95rem;
        }
        
        .product-actions {
            display: flex;
            justify-content: space-between;
            margin-top: 15px;
        }
        
        .btn-small {
            padding: 10px 20px;
            font-size: 14px;
        }
        
        /* CTA部分 */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-dark) 100%);
            color: var(--white);
            text-align: center;
            padding: 100px 0;
        }
        
        .cta-content {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }
        
        .cta-content h2 {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }
        
        .cta-content p {
            font-size: 1.2rem;
            margin-bottom: 40px;
            opacity: 0.9;
            line-height: 1.6;
        }
        
        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            max-width: 600px;
            margin: 0 auto;
        }
        
        .form-group {
            flex: 1 1 calc(50% - 20px);
            min-width: 250px;
        }
        
        .form-group input, 
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 16px 20px;
            border: none;
            border-radius: 6px;
            font-size: 16px;
            background: rgba(255, 255, 255, 0.9);
            transition: var(--transition);
        }
        
        .form-group input:focus, 
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.3);
            background: var(--white);
        }
        
        .form-group textarea {
            resize: vertical;
            min-height: 120px;
        }
        
        .submit-btn {
            flex: 1 1 100%;
            background: var(--accent);
            color: var(--white);
            padding: 16px 20px;
            border: none;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
            margin-top: 10px;
        }
        
        .submit-btn:hover {
            background: var(--accent-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 107, 53, 0.3);
        }
       
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .product-detail-container {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            
            .product-info-sidebar {
                position: static;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 768px) {
		    .tech-grid {
                grid-template-columns: 1fr;
            }
            .product-title {
                font-size: 1.7rem;
            }
            
            .tabs-header {
                flex-wrap: wrap;
            }
            
            .tab-btn {
			    width: 25%;
                padding: 12px 10px;
                font-size: 0.95rem;
            }
            
            .applications-grid {
                grid-template-columns: 1fr;
            }
            
            .thumbnail-gallery {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .page-header {
                padding: 110px 0 40px;
            }
            
            .page-header h2 {
                font-size: 2.2rem;
            }
			    .safety-grid {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 576px) {
            .product-detail-section {
                padding: 30px 0;
            }
            
            .main-image {
                height: 300px;
            }
            
            .thumbnail-gallery {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .specs-table th,
            .specs-table td {
                padding: 10px;
                font-size: 0.9rem;
            }
            
            .download-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
            
            .section {
                padding: 60px 0;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
            
            .section-title h2::after {
                bottom: -10px;
                width: 60px;
                height: 3px;
            }
        }
        
        /* 移动端菜单遮罩 */
        .menu-overlay {
            position: fixed;
            top: var(--header-height);
            left: 0;
            width: 100%;
            height: calc(100vh - var(--header-height));
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }
        
        .menu-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        
        /* 隐藏移动端元素 */
        @media (max-width: 599px) {
            .hide-on-mobile {
                display: none;
            }
        }
		   .models-table-section {
            margin: 40px 0;
        }
        
        .table-container {
            overflow-x: auto;
            margin-top: 25px;
            border-radius: var(--border-radius);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .models-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--white);
            min-width: 800px;
        }
        
        .models-table th {
            background: var(--primary-dark);
            color: var(--white);
            font-weight: 600;
            padding: 15px 12px;
            text-align: left;
            position: sticky;
            top: 0;
        }
        
        .models-table td {
            padding: 12px;
            border-bottom: 1px solid var(--border-color);
            color: var(--mid-text);
        }
        
        .models-table tr:nth-child(even) {
            background-color: rgba(0, 102, 204, 0.03);
        }
        
        .models-table tr:hover {
            background-color: rgba(0, 102, 204, 0.08);
        }
        
        .model-highlight {
            background-color: rgba(255, 107, 53, 0.1) !important;
            border-left: 3px solid var(--accent);
        }
        
        .model-code {
            font-weight: 600;
            color: var(--primary-dark);
        }
        
        .flow-range {
            font-weight: 500;
            color: var(--primary-blue);
        }
        
        .material-tag {
            display: inline-block;
            padding: 4px 8px;
            background: var(--light-bg);
            border-radius: 4px;
            font-size: 0.85rem;
            margin-right: 5px;
            margin-bottom: 5px;
        }
        
        .table-note {
            margin-top: 15px;
            padding: 15px;
            background: var(--light-bg);
            border-radius: 8px;
            font-size: 0.9rem;
            color: var(--mid-text);
            border-left: 3px solid var(--primary-blue);
        }
        
        .table-legend {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 20px;
            padding: 15px;
            background: var(--light-bg);
            border-radius: 8px;
        }
        
        .legend-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
        }
        
        .legend-color {
            width: 15px;
            height: 15px;
            border-radius: 3px;
        }
        
        .legend-highlight {
            background-color: rgba(255, 107, 53, 0.2);
            border-left: 3px solid var(--accent);
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .product-detail-container {
                padding: 20px;
            }
            
            .models-table th,
            .models-table td {
                padding: 10px 8px;
                font-size: 0.9rem;
            }
            
            .table-legend {
                flex-direction: column;
                gap: 10px;
            }
        }
        
        @media (max-width: 480px) {
            .models-table th,
            .models-table td {
                padding: 8px 6px;
                font-size: 0.85rem;
            }
            
            .material-tag {
                font-size: 0.8rem;
                padding: 3px 6px;
            }
        }
		        .industry-applications {
            margin: 40px 0;
        }
        
        .industry-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 25px;
        }
        
        .industry-card {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 20px;
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }
        
        .industry-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--hover-shadow);
        }
        
        .industry-icon {
            width: 50px;
            height: 50px;
            background: rgba(0, 102, 204, 0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-blue);
            font-size: 1.5rem;
            margin-bottom: 15px;
        }
        
        .troubleshooting-section {
            margin: 40px 0;
        }
        
        .troubleshooting-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 20px;
            background: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }
        
        .troubleshooting-table th,
        .troubleshooting-table td {
            padding: 15px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
        }
        
        .troubleshooting-table th {
            background: var(--light-bg);
            font-weight: 600;
            color: var(--primary-dark);
        }
        
        .troubleshooting-table tr:last-child td {
            border-bottom: none;
        }
        
        @media (max-width: 768px) {
            .model-grid,
            .installation-steps,
            .industry-grid {
                grid-template-columns: 1fr;
            }
            
            .specs-table-detailed th,
            .specs-table-detailed td {
                padding: 10px;
                font-size: 0.9rem;
            }
        }

		 .specs-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 20px;
            margin-top: 25px;
        }
        
        .spec-card {
            background: var(--white);
            border-radius: var(--border-radius);
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: var(--transition);
            border-left: 4px solid var(--primary-blue);
        }
        
        .spec-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        
        .spec-card h4 {
            color: var(--primary-dark);
            margin-bottom: 15px;
            font-size: 1.2rem;
        }
        
        .spec-list {
            list-style: none;
        }
        
        .spec-list li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
        }
        
        .spec-list li:last-child {
            border-bottom: none;
        }
		 .installation-guide {
            background: var(--light-bg);
            border-radius: var(--border-radius);
            padding: 25px;
            margin: 30px 0;
            border-left: 4px solid var(--accent);
        }
        
        .installation-steps {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }
        
        .installation-step {
            background: var(--white);
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        
        .step-number {
            width: 30px;
            height: 30px;
            background: var(--primary-blue);
            color: var(--white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            margin-bottom: 15px;
        }
		  /* 安全特性样式 */
        .safety-features {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 25px;
            margin: 30px 0;
        }
        
        .safety-features h3 {
            color: var(--primary-color);
            margin-bottom: 20px;
            font-size: 22px;
        }
        
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
        }
        
        .safety-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .safety-icon {
            background: var(--primary-blue);
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        
        .safety-text {
            font-weight: 500;
        }
         /* 技术特性样式 */
        .tech-features {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 25px;
            margin: 30px 0;
        }
        
        .tech-features h3 {
            color: var(--primary-color);
            margin-bottom: 20px;
            font-size: 22px;
        }
        
        .tech-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
        }
        
        .tech-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .tech-icon {
            background: var(--primary-blue);
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        
        .tech-text {
            font-weight: 500;
        }