/* Product Detail Container */
        .product-detail-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 40px 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
        }
        
        /* Gallery Section */
        .product-gallery {
            flex: 1;
            min-width: 300px;
			position: relative;
        }
        
        .gallery-main {
            position: relative;
            border-radius: 12px;
            overflow: hidden;
            background: var(--bg-light);
            margin-bottom: 15px;
            height: 680px;
            display: flex;
            align-items: center;
            justify-content: center;
			cursor: pointer;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
        }
        
        .gallery-main img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            transition: transform 0.3s ease;
        }
        .gallery-slider {
            width: 100%;
            height: 100%;
            position: relative;
            overflow: hidden;
            border-radius: 12px;
        }
        
        .slider-track {
            display: flex;
            height: 100%;
            transition: transform 0.5s ease;
        }
        
        .slider-item {
            min-width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        
        .slider-item img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            transition: transform 0.3s ease;
        }
        
        /* Navigation Arrows */
        .slider-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 100%;
            display: flex;
            justify-content: space-between;
            padding: 0 20px;
            z-index: 10;
        }
        
        .slider-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.85);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
            transition: var(--transition);
            border: none;
            color: var(--text-dark);
            font-size: 1.2rem;
        }
        
        .slider-btn:hover {
            background: white;
            transform: scale(1.1);
        }
        .gallery-thumbs {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
			position: relative;
        }
        
        .thumb-item {
            border-radius: 8px;
            overflow: hidden;
            cursor: pointer;
            border: 2px solid transparent;
            transition: var(--transition);
            /*height: 100px;*/
            background: var(--bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
			position: relative;
        }
        
        .thumb-item.active, .thumb-item:hover {
            border-color: var(--primary-color);
        }
        
        .thumb-item img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
/* Auto Play Controls */
        .auto-play-controls {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 15px;
            margin-top: 20px;
            padding: 10px 0;
        }
        
        .auto-play-btn {
            background: var(--primary-color);
            color: white;
            border: none;
            padding: 8px 20px;
            border-radius: 30px;
            cursor: pointer;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        
        .auto-play-btn:hover {
            background: var(--primary-dark);
        }
        
        .play-pause-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 107, 0, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--primary-color);
            font-size: 1.2rem;
            transition: var(--transition);
        }
        
        .play-pause-btn:hover {
            background: rgba(255, 107, 0, 0.2);
        }
        
        /* Lightbox Overlay */
        .lightbox {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.92);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease;
        }
        
        .lightbox.active {
            opacity: 1;
            visibility: visible;
        }
        
        .lightbox-content {
            position: relative;
            max-width: 90%;
            max-height: 90%;
            width: auto;
            height: auto;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .lightbox-img {
            max-width: 100%;
            max-height: 90vh;
            object-fit: contain;
            cursor: zoom-in;
            transition: transform 0.3s ease;
            transform-origin: center center;
        }
        
        .lightbox-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 1000px;
            display: flex;
            justify-content: space-between;
            padding: 0 20px;
        }
        
        .lightbox-btn {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: white;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        
        .lightbox-btn:hover {
            background: rgba(255, 255, 255, 0.3);
        }
        
        .lightbox-close {
            position: absolute;
            top: -40px;
            right: -100px;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: white;
            font-size: 1.8rem;
            transition: var(--transition);
        }
        
        .lightbox-close:hover {
            background: rgba(255, 255, 255, 0.3);
        }
        
        .lightbox-zoom {
            position: absolute;
            bottom: -30px;
            right: -180px;
            background: rgba(255, 255, 255, 0.15);
            color: white;
            padding: 12px 25px;
            border-radius: 30px;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .lightbox-zoom:hover {
            background: rgba(255, 255, 255, 0.3);
        }        
        /* Product Info Section */
        .product-info {
            flex: 1;
            min-width: 300px;
        }
        
        .product-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: var(--text-dark);
            line-height: 1.3;
        }
        
        .product-meta {
            display: flex;
            gap: 25px;
            margin-bottom: 25px;
            flex-wrap: wrap;
        }
        
        .meta-item {
            display: flex;
            flex-direction: column;
        }
        
        .meta-label {
            font-size: 0.9rem;
            color: var(--text-light);
            margin-bottom: 5px;
        }
        
        .meta-value {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-dark);
        }
        
        .product-price {
            font-size: 1.8rem;
            font-weight: 700;
            color: #e53935;
            margin-bottom: 30px;
        }
        
        .product-description {
            margin-bottom: 30px;
            color: var(--text-medium);
            line-height: 1.7;
        }
        
        /* Certification Section */
        .product-cert {
            background: #f8f9fa;
            border-radius: 12px;
            padding: 25px;
            margin-bottom: 30px;
        }
        
        .cert-title {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--text-dark);
            text-align: center;
        }
        
        .cert-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
        }
        
        .cert-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px;
            background: white;
            border-radius: 8px;
            box-shadow: var(--shadow);
        }
        
        .cert-icon {
            width: 40px;
            height: 40px;
            background: rgba(255, 107, 0, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-size: 1.1rem;
        }
        
        .cert-text {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-dark);
        }
        
        /* Action Buttons */
        .product-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 30px;
        }
        
        .action-btn {
            flex: 1;
            min-width: 200px;
            padding: 16px 25px;
            border-radius: 8px;
            font-weight: 600;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            text-decoration: none;
            transition: var(--transition);
            text-align: center;
        }
        
        .detail-btn-primary {
            background: var(--primary-color);
            color: white;
        }
        
        .detail-btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 107, 0, 0.3);
        }
        
        .detail-btn-outline {
            border: 2px solid var(--primary-color);
            color: var(--primary-color);
            background: white;
        }
        
        .detail-btn-outline:hover {
            background: rgba(255, 107, 0, 0.05);
            transform: translateY(-3px);
        }
        
        /* Share Section */
        .share-section {
            padding-top: 25px;
            border-top: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .share-label {
            font-size: 1rem;
            color: var(--text-medium);
            font-weight: 500;
        }
        
        .share-buttons {
            display: flex;
            gap: 10px;
        }
        
        .share-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: #f0f2f5;
            color: var(--text-dark);
            transition: var(--transition);
            text-decoration: none;
        }
        
        .share-btn:hover {
            transform: translateY(-3px);
            background: #e4e6e9;
        }
        
        .share-btn.facebook:hover {
            background: #3b5998;
            color: white;
        }
        
        .share-btn.twitter:hover {
            background: #1da1f2;
            color: white;
        }
        
        .share-btn.linkedin:hover {
            background: #0077b5;
            color: white;
        }
        
        /* Responsive Design */
        @media (max-width: 992px) {
            .product-detail-container {
                flex-direction: column;
                gap: 30px;
            }
            
            .gallery-main {
                height: 500px;
            }
            
            .product-title {
                font-size: 1.9rem;
            }
        }
        
        @media (max-width: 768px) {
            .cert-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .gallery-thumbs {
                /*grid-template-columns: repeat(3, 1fr);*/
            }
            
            .gallery-main {
                height: 400px;
            }
            
            .product-title {
                font-size: 1.7rem;
            }
        }
        
        @media (max-width: 480px) {
            .gallery-main {
                height: 300px;
            }
            
            .gallery-thumbs {
                /*grid-template-columns: repeat(2, 1fr);*/
            }
            
            .cert-grid {
                grid-template-columns: 1fr;
            }
            
            .product-title {
                font-size: 1.5rem;
            }
            
            .product-meta {
                gap: 15px;
            }
            
            .action-btn {
                min-width: 100%;
            }
			.slider-btn {
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
			
        }
.discount-banner {
            width: 100%;
            max-width: 1200px;
            height: auto;
            margin: 40px auto;
            position: relative;
            overflow: hidden;
            border-radius: 16px;
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
            background: linear-gradient(135deg, var(--dark-blue) 0%, #2c3e50 100%);
            display: flex;
            align-items: center;
        }
        
        .discount-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(26, 42, 79, 0.9);
        }
        
        .discount-content {
            width: 100%;
            position: relative;
            padding: 40px;
            display: flex;
            justify-content: space-between;
            align-items: stretch;
            gap: 50px;
        }
        
        /* ===== 左侧工程师信息区域 ===== */
        .engineer-info {
            flex: 1;
            max-width: 55%;
            color: white;
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 30px;
        }
        
        .engineer-header {
            display: flex;
            align-items: center;
            gap: 25px;
            margin-bottom: 25px;
        }
        
        .engineer-photo {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            border: 3px solid var(--primary-color);
            object-fit: cover;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .engineer-details {
            flex: 1;
        }
        
        .engineer-name {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 5px;
            color: white;
        }
        
        .engineer-title {
            font-size: 1.2rem;
            font-weight: 500;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        
        .experience-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            color: var(--primary-color);
            padding: 8px 15px;
            border-radius: 30px;
            font-weight: 600;
            margin-bottom: 20px;
            border: 1px solid rgba(52, 152, 219, 0.5);
        }
        
        .engineer-description {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.1rem;
            line-height: 1.7;
            margin-bottom: 30px;
            max-width: 90%;
        }
        
        .expertise-container {
            display: flex;
            flex-direction: column;
            gap: 18px;
            margin-top: 20px;
        }
        
        .expertise {
            display: flex;
            align-items: center;
            gap: 15px;
            color: white;
            font-weight: 500;
            font-size: 1rem;
        }
        
        .expertise i {
            color: var(--primary-color);
            font-size: 1.3rem;
            background: rgba(255, 255, 255, 0.15);
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }
        
        /* ===== 右侧联系方式区域 ===== */
        .contact-container {
            flex: 1;
            max-width: 45%;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 12px;
            padding: 40px;
            box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        
        .contact-title {
            color: var(--dark-blue);
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 30px;
            text-align: center;
        }
        
        .contact-title i {
            color: var(--primary-color);
            margin-right: 12px;
        }
        
        .contact-info {
            margin-bottom: 35px;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
            padding: 15px;
            background: rgba(245, 245, 245, 0.9);
            border-radius: 8px;
            transition: var(--transition);
        }
        
        .contact-item:hover {
            background: rgba(240, 248, 255, 0.95);
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        .contact-item i {
            color: var(--primary-color);
            font-size: 1.5rem;
            min-width: 30px;
            text-align: center;
        }
        
        .contact-details {
            flex: 1;
        }
        
        .contact-label {
            font-weight: 600;
            font-size: 0.9rem;
            color: #666;
            margin-bottom: 3px;
        }
        
        .contact-value {
            font-size: 1.1rem;
            font-weight: 600;
            color: #333;
        }
        
        .social-section {
            margin-top: 20px;
        }
        
        .social-title {
            text-align: center;
            font-weight: 600;
            color: #666;
            margin-bottom: 20px;
            font-size: 1.1rem;
        }
        
        .social-buttons {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }
        
        .social-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            font-size: 1.2rem;
            color: white;
            text-decoration: none;
            transition: var(--transition);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .social-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
        }
        
        .linkedin { background: #0077B5; }
        .facebook { background: #3b5998; }
        .tiktok { background: #000000; }
        .youtube { background: #FF0000; }
        .instagram { 
            background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%,#d6249f 60%,#285AEB 90%);
        }
        .twitter { background: #1DA1F2; }
        
        .envelope-icon {
            position: absolute;
            right: -30px;
            top: 50%;
            transform: translateY(-50%);
            opacity: 0.15;
            font-size: 200px;
            color: white;
            z-index: 1;
        }
        
        /* ===== 响应式设计 ===== */
        @media (max-width: 992px) {
            .discount-content {
                padding: 30px;
                gap: 30px;
            }
            
            .engineer-info {
                padding: 20px;
            }
            
            .contact-container {
                padding: 30px;
            }
            
            .engineer-name {
                font-size: 1.8rem;
            }
            
            .engineer-description {
                font-size: 1rem;
            }
            
            .contact-title {
                font-size: 1.6rem;
            }
            
            .envelope-icon {
                font-size: 160px;
                right: -20px;
            }
        }
        
        @media (max-width: 768px) {
            .discount-banner {
                height: auto;
                margin: 20px 0;
            }
            
            .discount-content {
                flex-direction: column;
                padding: 0 20px;
                gap: 0;
            }
            
            .engineer-info,
            .contact-container {
                max-width: 100%;
                padding: 35px 25px;
            }
            
            .engineer-info {
                display: flex;
                text-align: center;
                padding: 40px 25px;
            }
            
            .engineer-header {
                flex-direction: column;
                text-align: center;
                gap: 20px;
            }
            
            .engineer-description {
                max-width: 100%;
                font-size: 1rem;
                text-align: center;
                margin-left: auto;
                margin-right: auto;
            }
            
            .expertise-container {
                align-items: center;
            }
            
            .contact-container {
                margin-top: 0;
                padding: 35px 25px;
                width: 100%;
                max-width: 100%;
                border-radius: 10px;
            }
            
            .envelope-icon {
                display: none;
            }
            
            .contact-title {
                font-size: 1.5rem;
            }
            
            .contact-item {
                padding: 12px;
            }
        }
        
        @media (max-width: 480px) {
            .engineer-name {
                font-size: 1.6rem;
            }
            
            .engineer-title {
                font-size: 1.1rem;
            }
            
            .engineer-info,
            .contact-container {
                padding: 30px 20px;
            }
            
            .contact-title {
                font-size: 1.4rem;
            }
            
            .contact-value {
                font-size: 1rem;
            }
            
            .social-btn {
                width: 45px;
                height: 45px;
                font-size: 1.1rem;
            }
        }
/* Product Content Container */
        .product-content-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px 60px;
            display: flex;
            gap: 40px;
        }
        
        /* Content Wrapper */
        .content-wrapper {
            flex: 1;
            min-width: 300px;
        }
        
        .content-tabs {
            display: flex;
            border-bottom: 2px solid var(--border-color);
            margin-bottom: 30px;
        }
        
        .tab-button {
            padding: 16px 30px;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-medium);
            background: none;
            border: none;
            cursor: pointer;
            position: relative;
            transition: all 0.3s ease;
        }
        
        .tab-button.active {
            color: var(--primary-color);
        }
        
        .tab-button.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary-color);
        }
        
        .tab-button:hover:not(.active) {
            color: var(--primary-dark);
            background-color: rgba(255, 107, 0, 0.05);
        }
        
        .tab-pane {
            display: none;
            animation: fadeIn 0.5s ease;
        }
        
        .tab-pane.active {
            display: block;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }
        
        /* Details Content */
        .specification-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }
        
        .spec-card {
            background: var(--bg-light);
            border-radius: 10px;
            padding: 20px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s ease;
        }
        
        .spec-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
        }
        
        .spec-header {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 15px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border-color);
        }
        
        .spec-icon {
            width: 40px;
            height: 40px;
            background: rgba(255, 107, 0, 0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-size: 1.2rem;
        }
        
        .spec-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-dark);
        }
        
        .spec-list {
            list-style: none;
        }
        
        .spec-item {
            display: flex;
            justify-content: space-between;
            padding: 8px 0;
            border-bottom: 1px dashed var(--border-color);
        }
        
        .spec-label {
            font-weight: 500;
        }
        
        .spec-value {
            font-weight: 600;
            color: var(--text-dark);
        }
        
        .description-section {
            margin-bottom: 40px;
        }
        
        .section-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--primary-color);
            display: inline-block;
        }
        
        .description-content {
            line-height: 1.8;
        }
        
        .description-content p {
            margin-bottom: 20px;
        }
        
        .documents-section {
            margin-top: 40px;
        }
        
        .doc-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }
        
        .doc-card {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 15px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }
        
        .doc-card:hover {
            background: var(--bg-light);
            border-color: var(--primary-color);
        }
        
        .doc-icon {
            width: 50px;
            height: 50px;
            background: rgba(26, 42, 79, 0.05);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--dark-blue);
            font-size: 1.5rem;
        }
        
        .doc-info {
            flex: 1;
        }
        
        .doc-name {
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 5px;
        }
        
        .doc-size {
            font-size: 0.9rem;
            color: var(--text-light);
        }
        
        .download-btn {
            background: none;
            border: none;
            color: var(--primary-color);
            font-size: 1.2rem;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        
        .download-btn:hover {
            color: var(--primary-dark);
        }
        
        /* FAQ Content */
        .faq-container {
            margin-bottom: 40px;
        }
        
        .faq-item {
            margin-bottom: 20px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }
        
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px;
            background: var(--dark-blue);
            color: white;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        
        .faq-question:hover {
            background: #15203d;
        }
        
        .faq-icon {
            transition: transform 0.3s ease;
        }
        
        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }
        
        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            background: var(--bg-light);
            transition: max-height 0.3s ease, padding 0.3s ease;
        }
        
        .faq-item.active .faq-answer {
            padding: 20px;
            max-height: 500px;
        }
        
       
        
        /* Responsive Design */
        @media (max-width: 1200px) {
            .product-content-container {
                flex-direction: column;
                gap: 30px;
            }
            
            
        }
        
        @media (max-width: 768px) {
            .content-tabs {
                overflow-x: auto;
                scrollbar-width: none;
            }
            
            .content-tabs::-webkit-scrollbar {
                display: none;
            }
            
            .tab-button {
                padding: 14px 20px;
                font-size: 1rem;
            }
            
            .specification-grid,
            .doc-grid {
                grid-template-columns: 1fr;
            }
            
           
        }
        
        @media (max-width: 480px) {
            .product-content-container {
                padding: 0 15px 40px;
            }
            
        }
/* 相关产品区域样式 - 优化版 */
        .related-products {
            background-color: #f8f9fa;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .related-products .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
        }

        .section-header h2 {
            font-size: 2rem;
            color: var(--text-dark);
            margin: 0;
        }

        .section-controls {
            display: flex;
            gap: 10px;
        }

        .control-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(26, 42, 79, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--dark-blue);
            font-size: 1rem;
            transition: all 0.3s ease;
            border: none;
        }

        .control-btn:hover {
            background: var(--dark-blue);
            color: white;
        }

        .products-scroller {
            position: relative;
            overflow: hidden;
            padding: 10px 0;
        }

        .scroller-track {
            display: flex;
            gap: 25px;
            transition: transform 0.5s ease;
        }

        .product-card {
            flex: 0 0 calc(25% - 20px);
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease;
        }

        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
        }

        .product-image {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

        .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);
        }

        .related-tag {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--primary-color);
            color: white;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .product-info {
            padding: 20px;
        }

        .product-info h3 {
            font-size: 1.2rem;
            margin: 0 0 10px;
            color: var(--text-dark);
        }

        .price {
            font-size: 1.4rem;
            font-weight: 700;
            color: #e53935;
            margin-bottom: 10px;
        }

        .price .original {
            font-size: 0.9rem;
            color: var(--text-light);
            text-decoration: line-through;
            margin-left: 8px;
        }

        .meta {
            display: flex;
            gap: 15px;
            font-size: 0.9rem;
            color: var(--text-medium);
        }

        .scroller-indicators {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 25px;
        }

        .indicator {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #ddd;
            cursor: pointer;
            transition: background 0.3s ease;
        }

        .indicator.active {
            background: var(--primary-color);
        }

        /* 响应式设计 */
        @media (max-width: 1200px) {
            .product-card {
                flex: 0 0 calc(33.333% - 20px);
            }
        }

        @media (max-width: 992px) {
            .product-card {
                flex: 0 0 calc(50% - 20px);
            }
            
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
        }

        @media (max-width: 768px) {
            .related-products {
                padding: 40px 0;
            }
            
            .scroller-track {
                gap: 15px;
            }
            
            .product-card {
                flex: 0 0 calc(100% - 20px);
            }
            
            .product-image {
                height: 180px;
            }
        }

        @media (max-width: 480px) {
            .product-info {
                padding: 15px;
            }
            
            .product-info h3 {
                font-size: 1.1rem;
            }
            
            .price {
                font-size: 1.2rem;
            }
        }