* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        /* 单独产品页用导航栏样式 */

        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        
        /* 导航栏样式 */
        .nav {
            background-color: #fff;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: 80px;
            display: flex;
            align-items: center;
        }
        
        .na1 {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .na1 ul {
            list-style: none;
            display: flex;
            gap: 30px;
        }
        
        .na1 ul li {
            position: relative;
        }
        
        .na1 ul li a {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            font-size: 20px;
            padding: 15px 0;
            position: relative;
        }
        
        .na1 ul li a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 3px;
            bottom: 10px;
            left: 0;
            background-color: #d63031;
            transition: width 0.3s ease;
        }
        
        .na1 ul li a:hover::after {
            width: 100%;
        }
        
        .na1 ul li > div {
            position: absolute;
            top: 100%;
            left: 0;
            background: white;
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
            border-radius: 0 0 5px 5px;
            display: none;
            flex-direction: column;
            min-width: 200px;
            z-index: 100;
            padding: 10px 0;
        }
        
        .na1 ul li > div a {
            padding: 12px 20px;
            display: block;
            color: #555;
            font-size: 16px;
            transition: all 0.3s;
        }
        
        .na1 ul li > div a:hover {
            background: #f8f9fa;
            color: #d63031;
        }
        
        .na1 ul li:hover > div {
            display: flex;
        }
        
        .right-section {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        
        .language {
            cursor: pointer;
            font-size: 20px;
        }
        
        .phone-number {
            font-weight: 500;
            font-size: 20px;
        }
        
        .company-name {
            text-align: center;
            padding: 50px 0;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
        }
        
        .company-name h1 {
            font-size: 36px;
            margin-bottom: 15px;
            color: #c23616;
        }
        
        .company-name p {
            font-size: 20px;
            color: #7f8c8d;
        }
        
        /* 产品详情区域样式 */
        .product-detail-container {
            max-width: 1200px;
            margin: 50px auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }
        
        .product-gallery {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        
        .main-image {
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            height: 450px;
            background: #f0f2f5;
        }
        
        .main-image img {
            width: 100%;
            height: 100%;
            object-fit: contain;
            transition: transform 0.5s ease;
        }
        
        .thumbnail-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 15px;
        }
        
        .thumbnail {
            height: 100px;
            border-radius: 8px;
            overflow: hidden;
            cursor: pointer;
            border: 2px solid transparent;
            transition: all 0.3s ease;
        }
        
        .thumbnail:hover, .thumbnail.active {
            border-color: #d63031;
        }
        
        .thumbnail img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .product-info {
            background: white;
            border-radius: 10px;
            padding: 40px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .product-title {
            font-size: 32px;
            color: #2c3e50;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid #f0f2f5;
        }
        
        .product-model {
            color: #d63031;
            font-size: 18px;
            margin-bottom: 25px;
            display: block;
        }
        
        .product-description {
            color: #7f8c8d;
            margin-bottom: 30px;
            font-size: 17px;
            line-height: 1.8;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-bottom: 30px;
        }
        
        .feature-item {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .feature-icon {
            background: #f0f2f5;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #d63031;
            font-size: 18px;
        }
        
        .feature-text h4 {
            color: #2c3e50;
            margin-bottom: 5px;
            font-size: 18px;
        }
        
        .feature-text p {
            color: #7f8c8d;
            font-size: 15px;
        }
        
        .specs-table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
        }
        
        .specs-table th, .specs-table td {
            border: 1px solid #eaeaea;
            padding: 15px;
            text-align: left;
        }
        
        .specs-table th {
            background-color: #f8f9fa;
            font-weight: 600;
            color: #2c3e50;
            width: 30%;
        }
        
        .specs-table td {
            color: #555;
        }
         
             /* 修改后的表格样式 */
        .specs-section {
            margin: 40px 30px;
            padding: 20px;
            background: #fff;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
        }
        
        .specs-section h3 {
            color: #2c3e50;
            font-size: 26px;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 2px solid #f0f4f8;
        }
        
        .pads-table {
            width: 100%;
            border-collapse: collapse;
            background: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            /* 关键修改1：设置表格布局为自动，列宽自适应 */
            table-layout: auto;
        }
        
        .pads-table th {
            background: #2c3e50;
            color: white;
            /* 关键修改2：文本居中 */
            text-align: center;
            padding: 18px;
            font-weight: 600;
            font-size: 18px;
            /* 关键修改3：增加最小宽度避免拥挤 */
            min-width: 120px;
        }
        
        .pads-table td {
            padding: 16px 20px;
            border-bottom: 1px solid #eee;
            color: #444;
            /* 关键修改4：文本居中 */
            text-align: center;
            font-size: 16px;
            /* 关键修改5：设置最小高度保证内容显示 */
            min-height: 60px;
            vertical-align: middle;
        }
        
        .pads-table tr:nth-child(even) {
            background-color: #f9fbfd;
        }
        
        .pads-table tr:hover {
            background-color: #f1f8ff;
            transition: background-color 0.3s ease;
        }
                
        .download-brochure {
            background: #d63031;
            color: white;
            padding: 15px 30px;
            border: none;
            border-radius: 5px;
            font-size: 18px;
            font-weight: 500;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 30px;
            transition: background 0.3s ease;
        }
        
        .download-brochure:hover {
            background: #c23616;
        }
        
        /* 相关产品区域 */
        .related-products {
            margin-top: 70px;
        }
        
        .section-title {
            font-size: 28px;
            color: #2c3e50;
            margin-bottom: 30px;
            padding-bottom: 15px;
            border-bottom: 2px solid #f0f2f5;
            position: relative;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100px;
            height: 2px;
            background: #d63031;
        }
        
        .products-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .product-card {
            background: white;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }
        
        .product-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
        }
        
        .product-image {
            height: 220px;
            background-color: #f0f2f5;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            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);
        }
        
        .product-content {
            padding: 25px;
        }
        
        .product-content h3 {
            font-size: 20px;
            margin-bottom: 15px;
            color: #2c3e50;
        }
        
        .product-content p {
            color: #7f8c8d;
            margin-bottom: 20px;
            font-size: 15px;
        }
        
        .product-content a {
            display: inline-block;
            padding: 10px 25px;
            background: #d63031;
            color: white;
            text-decoration: none;
            border-radius: 5px;
            font-weight: 500;
            font-size: 15px;
            transition: all 0.3s ease;
        }
        
        .product-content a:hover {
            background: #c23616;
            transform: translateX(5px);
        }
        
        /* 右侧中部悬浮咨询按钮 */
        .floating-contact-btn {
            position: fixed;
            right: 30px;
            top: 50%;
            transform: translateY(-50%);
            background: #d63031;
            color: white;
            width: 70px;
            height: 70px;
            border-radius: 50%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            cursor: pointer;
            box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
            z-index: 999;
            transition: all 0.3s ease;
            animation: pulse 2s infinite;
        }
        
        .floating-contact-btn:hover {
            transform: translateY(-50%) scale(1.1);
            box-shadow: 0 8px 20px rgba(52, 152, 219, 0.6);
            animation: none;
        }
        
        .floating-contact-btn span {
            font-size: 12px;
            margin-top: 5px;
            font-weight: 500;
        }
        
        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(52, 152, 219, 0.5);
            }
            70% {
                box-shadow: 0 0 0 15px rgba(52, 152, 219, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(52, 152, 219, 0);
            }
        }
        
        /* 咨询表单弹窗样式 */
        .contact-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }
        
        .modal-content {
            background: white;
            width: 100%;
            max-width: 500px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            position: relative;
            animation: modalFadeIn 0.3s ease;
        }
        
        @keyframes modalFadeIn {
            from {
                opacity: 0;
                transform: translateY(-50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .close-modal {
            position: absolute;
            top: 15px;
            right: 15px;
            background: none;
            border: none;
            font-size: 28px;
            cursor: pointer;
            color: #7f8c8d;
            z-index: 10;
        }
        
        .close-modal:hover {
            color: #d63031;
        }
        
        .contact-form {
            padding: 35px;
        }
        
        .contact-form h2 {
            font-size: 28px;
            margin-bottom: 25px;
            color: #2c3e50;
            text-align: center;
        }
        
        .form-group {
            margin-bottom: 25px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 10px;
            font-weight: 500;
            color: #2c3e50;
            font-size: 16px;
        }
        
        .form-control {
            width: 100%;
            padding: 14px 16px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 16px;
            transition: border 0.3s ease;
        }
        
        .form-control:focus {
            border-color: #d63031;
            outline: none;
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
        }
        
        .required {
            color: #d63031;
        }
        
        .btn {
            background: #d63031;
            color: white;
            border: none;
            padding: 15px 25px;
            font-size: 18px;
            font-weight: 500;
            border-radius: 5px;
            cursor: pointer;
            width: 100%;
            transition: background 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
        }
        
        .btn:hover {
            background: #c23616;
        }
        
        .message {
            padding: 18px;
            margin-bottom: 25px;
            border-radius: 5px;
            display: none;
            font-size: 16px;
        }
        
        .success {
            background: #d4edda;
            color: #155724;
            display: block;
        }
        
        .error {
            background: #f8d7da;
            color: #721c24;
            display: block;
        }
        
        /* 页脚样式 */
        footer {
            background: #2c3e50;
            color: white;
            padding: 50px 0 30px;
            margin-top: 70px;
        }
        
        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 35px;
        }
        
        .footer-column h3 {
            font-size: 22px;
            margin-bottom: 25px;
            position: relative;
            padding-bottom: 15px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background: #d63031;
        }
        
        .footer-column ul {
            list-style: none;
        }
        
        .footer-column ul li {
            margin-bottom: 15px;
            font-size: 16px;
        }
        
        .footer-column ul li a {
            color: #ecf0f1;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        
        .footer-column ul li a:hover {
            color: #d63031;
        }
        
        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            margin-top: 40px;
            border-top: 2px solid rgba(255, 255, 255, 0.1);
            color: #bdc3c7;
            font-size: 16px;
        }
        
        /* 响应式调整 */
        @media (max-width: 992px) {

            .pads-table {
                display: block;
                overflow-x: auto;
            }
            
            .specs-section {
                margin: 30px 15px;
            }

            .na1 ul li a {
                font-size: 16px;
                padding: 12px 0;
            }
            
            .na1 ul li > div a {
                font-size: 14px;
            }
            
            .product-gallery {
                grid-template-columns: 1fr;
            }
            
            .main-image {
                height: 350px;
            }
        }
        
        @media (max-width: 768px) {
            .nav {
                height: auto;
                padding: 15px 0;
            }
            
            .na1 {
                flex-wrap: wrap;
            }
            
            .na1 ul {
                width: 100%;
                margin-top: 15px;
                justify-content: center;
                gap: 15px;
                flex-wrap: wrap;
            }
            
            .na1 ul li a {
                font-size: 14px;
                padding: 10px 5px;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
            }
            
            .products-grid {
                grid-template-columns: 1fr;
            }
            
            .floating-contact-btn {
                width: 60px;
                height: 60px;
                font-size: 24px;
                right: 15px;
            }
            
            .modal-content {
                width: 95%;
            }
            
            .company-name h1 {
                font-size: 28px;
            }
            
            .company-name p {
                font-size: 16px;
            }
        }
        
        @media (max-height: 600px) {
            .floating-contact-btn {
                top: auto;
                bottom: 30px;
                transform: none;
            }
        }