/* 产品页面专用样式 - 增强现有样式 */
        :root {
            --filter-blue: #2c3e50;
            --filter-light: #ecf0f1;
            --filter-accent: #3498db;
            --success-green: #27ae60;
        }
        
        
        .product-container {
            width: 102%;
            margin: 0 auto;
            padding: 5px;
        }
        
        /* 产品头部区域 */
        .product-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, #8a1b1f 100%);
            color: white;
            padding: 40px 20px;
            border-radius: var(--radius);
            margin-bottom: 40px;
            text-align: center;
            box-shadow: var(--shadow);
        }
        
        .product-title {
            font-size: 2.8rem;
            margin-bottom: 10px;
            font-weight: 700;
        }
        
        .product-subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
            max-width: 800px;
            margin: 0 auto 25px;
        }
        
        .product-model {
            display: inline-block;
            background: rgba(255, 255, 255, 0.15);
            padding: 10px 25px;
            border-radius: 50px;
            font-weight: 600;
            letter-spacing: 1px;
        }
        
        /* 产品概览卡片 */
        .product-overview {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin-bottom: 50px;
        }
        
        .overview-card {
            background: white;
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow);
            border-top: 5px solid var(--primary-color);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        
        .overview-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
        }
        
        .overview-card h3 {
            color: var(--primary-color);
            font-size: 1.4rem;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-color);
        }
        
        .spec-list {
            list-style: none;
            margin-top: 10px;
        }
        
        .spec-list li {
            padding: 12px 0;
            border-bottom: 1px dashed var(--border-color);
            display: flex;
            justify-content: space-between;
        }
        
        .spec-list li:last-child {
            border-bottom: none;
        }
        
        .spec-label {
            font-weight: 600;
            color: var(--text-dark);
        }
        
        .spec-value {
            color: var(--primary-color);
            font-weight: 500;
        }
        
        /* 产品简介部分 */
        .product-intro {
            background: white;
            border-radius: var(--radius);
            padding: 40px;
            margin-bottom: 50px;
            box-shadow: var(--shadow);
        }
        
        .intro-header {
            margin-bottom: 30px;
        }
        
        .intro-header h2 {
            font-size: 2.2rem;
            color: #a32024;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        
        .intro-content {
            font-size: 1.1rem;
            line-height: 1.8;
        }
        
        .intro-features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 25px;
            margin-top: 35px;
        }
        
        .feature-item {
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }
        
        .feature-icon {
            width: 50px;
            height: 50px;
            background: rgba(163, 32, 36, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-size: 22px;
            flex-shrink: 0;
        }
        
        .feature-text h4 {
            color: var(--text-dark);
            margin-bottom: 8px;
            font-size: 1.1rem;
        }
        
        /* 工作原理展示 */
        .working-principle {
            background: white;
            border-radius: var(--radius);
            padding: 40px;
            margin-bottom: 50px;
            box-shadow: var(--shadow);
        }
        
        .principle-header {
            text-align: center;
            margin-bottom: 40px;
        }
        
        .principle-header h2 {
            font-size: 2.2rem;
            color: #a32024;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        
        
        .principle-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(248px, 1fr));
            gap: 30px;
            counter-reset: step-counter;
        }
        
        .principle-step {
            text-align: center;
            position: relative;
            padding-top: 70px;
        }
        
        .principle-step::before {
            counter-increment: step-counter;
            content: counter(step-counter);
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 50px;
            background: var(--primary-color);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 700;
            box-shadow: 0 5px 15px rgba(163, 32, 36, 0.3);
        }
        
        .step-icon {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 20px;
            opacity: 0.8;
        }
        
        .step-title {
            font-size: 1.3rem;
            color: var(--text-dark);
            margin-bottom: 15px;
        }
        
        /* 产品优势 */
        .product-advantages {
            margin-bottom: 60px;
        }
        
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        
        .advantage-card {
            background: white;
            border-radius: var(--radius);
            padding: 30px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: var(--transition);
            border: 1px solid transparent;
        }
        
        .advantage-card:hover {
            border-color: var(--primary-color);
            transform: translateY(-5px);
        }
        
        .advantage-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(135deg, var(--primary-color), #c0392b);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            color: white;
            font-size: 28px;
        }
        
        .advantage-card h3 {
            color: var(--text-dark);
            margin-bottom: 15px;
            font-size: 1.3rem;
        }
        
        /* 规格尺寸板块 */
        .specifications-section {
            background: white;
            border-radius: var(--radius);
            padding: 40px;
            margin-bottom: 50px;
            box-shadow: var(--shadow);
        }
        
        .specs-tabs {
            display: flex;
            border-bottom: 1px solid var(--border-color);
            margin-bottom: 30px;
            overflow-x: auto;
        }
        
        .specs-tab {
            padding: 15px 25px;
            background: none;
            border: none;
            border-bottom: 3px solid transparent;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-light);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        
        .specs-tab.active {
            color: var(--primary-color);
            border-bottom-color: var(--primary-color);
        }
        
        .specs-tab:hover:not(.active) {
            color: var(--text-dark);
        }
        
        .specs-content {
            display: none;
        }
        
        .specs-content.active {
            display: block;
        }
        
        .dimension-image {
            width: 100%;
            border-radius: var(--radius);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            margin-bottom: 25px;
        }
        
        .dimension-table, .detailed-table, .basic-dimension-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 20px;
            font-size: 0.95rem;
        }
        
        .dimension-table th, .detailed-table th, .basic-dimension-table th {
            background: var(--primary-color);
            color: white;
            padding: 15px 10px;
            text-align: center;
            font-weight: 600;
            width: 116px;
        }
        
        .dimension-table tr:nth-child(even), 
        .detailed-table tr:nth-child(even),
        .basic-dimension-table tr:nth-child(even) {
            background-color: var(--bg-light);
        }
        
        .dimension-table td, .detailed-table td, .basic-dimension-table td {
            padding: 12px 8px;
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }
        
        .detailed-table, .basic-dimension-table {
            overflow-x: auto;
            display: block;
        }
        
        /* 技术参数表格 */
        .technical-specs {
            background: white;
            border-radius: var(--radius);
            padding: 40px;
            margin-bottom: 50px;
            box-shadow: var(--shadow);
            overflow-x: auto;
        }
        
        .spec-table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 20px;
        }
        
        .spec-table th {
            background: var(--primary-color);
            color: white;
            padding: 15px;
            text-align: left;
            font-weight: 600;
        }
        
        .spec-table tr:nth-child(even) {
            background-color: var(--bg-light);
        }
        
        .spec-table td {
            padding: 15px;
            border-bottom: 1px solid var(--border-color);
        }
        
        /* 安装示意板块 - 移到技术参数后 */
        .installation-section {
            background: white;
            border-radius: var(--radius);
            padding: 40px;
            margin-bottom: 50px;
            box-shadow: var(--shadow);
        }
        
        .installation-diagram {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 30px;
        }
        
        .diagram-image {
            flex: 1;
            min-width: 300px;
            text-align: center;
        }
        
        .diagram-image img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            border: 1px solid var(--border-color);
        }
        
        .installation-steps {
            flex: 1;
            min-width: 300px;
        }
        
        .installation-steps ol {
            padding-left: 25px;
            margin-top: 20px;
        }
        
        .installation-steps li {
            margin-bottom: 20px;
            padding-left: 10px;
        }
        
        .installation-steps li strong {
            color: var(--primary-color);
        }
        
        /* 应用领域 */
        .application-areas {
            margin-bottom: 60px;
        }
        
        .area-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 30px;
            justify-content: center;
        }
        
        .area-tab {
            background: white;
            padding: 15px 30px;
            border-radius: var(--radius);
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
            font-weight: 500;
            transition: var(--transition);
            border: 2px solid transparent;
            text-align: center;
            flex: 1;
            min-width: 200px;
            max-width: 300px;
        }
        
        .area-tab:hover {
            border-color: var(--primary-color);
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
        }
        
        .area-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
            color: var(--primary-color);
        }
        
        /* CTA区域 */
        .product-cta {
            background: linear-gradient(135deg, var(--primary-color) 0%, #8a1b1f 100%);
            color: white;
            padding: 50px;
            border-radius: var(--radius);
            text-align: center;
            margin-bottom: 40px;
            box-shadow: var(--shadow);
        }
        
        .cta-content h2 {
            font-size: 2.2rem;
            margin-bottom: 20px;
            color: white;
        }
        
        .cta-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        
        .cta-button {
            padding: 15px 35px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            display: inline-block;
        }
        
        .cta-button.primary {
            background: white;
            color: var(--primary-color);
        }
        
        .cta-button.secondary {
            background: transparent;
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
        }
        
        .cta-button.primary:hover {
            background: #f8f9fa;
        }
        
        .cta-button.secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: white;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .product-title {
                font-size: 2.2rem;
            }
            
            .product-overview,
            .advantages-grid,
            .intro-features {
                grid-template-columns: 1fr;
            }
            
            .working-principle,
            .technical-specs,
            .specifications-section,
            .installation-section {
                padding: 25px;
            }
            
            .principle-steps {
                grid-template-columns: 1fr;
            }
            
            .installation-diagram {
                flex-direction: column;
            }
            
            .specs-tabs {
                flex-wrap: wrap;
            }
            
            .specs-tab {
                flex: 1;
                min-width: 140px;
                text-align: center;
            }
            
            .dimension-table, .detailed-table, .basic-dimension-table, .spec-table {
                font-size: 0.85rem;
            }
            
            .dimension-table th, .detailed-table th, .basic-dimension-table th, .spec-table th,
            .dimension-table td, .detailed-table td, .basic-dimension-table td, .spec-table td {
                padding: 10px 5px;
            }
            
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            
            .cta-button {
                width: 100%;
                max-width: 300px;
                text-align: center;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .animate-on-scroll {
            opacity: 0;
            animation: fadeInUp 0.8s ease forwards;
        }
        
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }
        .delay-5 { animation-delay: 0.5s; }
        .delay-6 { animation-delay: 0.6s; }
        
        /* 通用标题样式 */
        .section-title {
            font-size: 2.2rem;
            color: var(--text-dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }
        

        
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-light);
            margin-bottom: 30px;
        }
        
        .center-title .section-title::after {
            left: 50%;
            transform: translateX(-50%);
        }
        
        /* 安装图片尺寸样式 */
        .installation-image-container {
            position: relative;
            margin: 30px 0;
            text-align: center;
        }
        
        .installation-image-container img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
        }
        
        .image-caption {
            margin-top: 15px;
            font-style: italic;
            color: var(--text-light);
            font-size: 0.95rem;
        }
        
        /* 表格高亮行 */
        .highlight-row {
            background-color: rgba(163, 32, 36, 0.05) !important;
        }
        
        /* 表格响应式滚动 */
        .table-responsive {
            overflow-x: auto;
            margin-bottom: 20px;
        }
        
        /* 尺寸示意图内的连接方式样式 */
        .connection-details {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px solid var(--border-color);
        }
        
        .dimension-image-content {
            text-align: center;
        }
        
        /* 尺寸标注示意图 */
        .dimension-diagram {
            max-width: 100%;
            margin: 30px auto;
            text-align: center;
        }
        
        .dimension-diagram-placeholder {
            padding: 30px;
            background: #f5f5f5;
            border-radius: var(--radius);
        }