:root {
            --primary-color: #2a6bcc;
            --primary-dark: #1d4d9c;
            --secondary-color: #5a2d9c;
            --accent-color: #d6005c;
            --light-color: #f8f9fa;
            --dark-color: #1a1a2e;
            --gray-color: #5a677d;
            --light-gray: #e9ecef;
            --medium-gray: #d1d5db;
            --border-radius: 10px;
            --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }
        
        .product-page * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Open Sans', sans-serif;
            line-height: 1.6;
            color: var(--dark-color);
            background-color: #fff;
        }
        
        .product-page {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }
        
        body > .product-page {
            padding-top: 20px;
        }
        
        .product-header {
            margin-bottom: 50px;
        }
        
        .product-title {
            font-family: 'Montserrat', sans-serif;
            font-size: 2.8rem;
            font-weight: 700;
            line-height: 1.2;
            color: var(--dark-color);
            margin-bottom: 20px;
            text-align: center;
        }
        
        .section {
            margin-bottom: 80px;
            scroll-margin-top: 20px;
        }
        
        .section-title {
            font-family: 'Montserrat', sans-serif;
            font-size: 2rem;
            font-weight: 600;
            margin-bottom: 25px;
            color: var(--primary-dark);
            position: relative;
            padding-bottom: 10px;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 4px;
            background-color: var(--accent-color);
            border-radius: 2px;
        }
        
        /* 第一板块：视频和介绍 - 简化的视频区域 */
        .video-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        
        .video-container {
            position: relative;
            width: 100%;
            max-width: 560px;
            height: 314px;
            background-color: transparent;
        }
        
        .intro-content {
            font-size: 1.1rem;
            line-height: 1.7;
        }
        
        .intro-content p {
            margin-bottom: 20px;
        }
        
        .highlight {
            color: var(--primary-dark);
            font-weight: 600;
        }
        
        /* 第二板块：核心原理 */
        .principles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .principle-card {
            background-color: var(--light-color);
            border-radius: var(--border-radius);
            padding: 30px;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
            border-top: 4px solid var(--primary-color);
        }
        
        .principle-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
        }
        
        .principle-card h3 {
            font-family: 'Montserrat', sans-serif;
            font-size: 1.4rem;
            margin-bottom: 15px;
            color: var(--primary-dark);
        }
        
        .principle-card p {
            margin-bottom: 10px;
        }
        
        /* 第三板块：专业功能 */
        .functions-section {
            background-color: #f5f7fb;
            border-radius: var(--border-radius);
            padding: 40px;
            margin-bottom: 60px;
        }
        
        .functions-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 30px;
        }
        
        .function-tab {
            background-color: white;
            border: 1px solid var(--medium-gray);
            border-radius: 30px;
            padding: 10px 20px;
            font-family: 'Montserrat', sans-serif;
            font-weight: 500;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .function-tab:hover {
            background-color: var(--light-gray);
        }
        
        .function-tab.active {
            background-color: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
        }
        
        .functions-content {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 25px;
        }
        
        .function-card {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--box-shadow);
            transition: var(--transition);
        }
        
        .function-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
        }
        
        .function-card-header {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .function-icon {
            width: 50px;
            height: 50px;
            background-color: rgba(42, 107, 204, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            color: var(--primary-color);
            font-size: 1.2rem;
        }
        
        .function-card-title {
            font-family: 'Montserrat', sans-serif;
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--primary-dark);
        }
        
        .function-card-desc {
            color: var(--gray-color);
            line-height: 1.6;
        }
        
        /* 第四板块：图片预留位置 - 简化版本 */
        .image-section-compact {
            margin-bottom: 40px;
        }
        
        .image-placeholder-simple {
            text-align: center;
            color: var(--gray-color);
            font-size: 1rem;
            padding: 10px 0;
        }
        
        .image-placeholder-simple i {
            font-size: 2rem;
            margin-bottom: 10px;
            color: var(--gray-color);
            display: block;
        }
        
        /* 第五板块：技术规格表格 */
        .specs-table-container {
            overflow-x: auto;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
        }
        
        .specs-table {
            width: 100%;
            border-collapse: collapse;
            background-color: white;
        }
        
        .specs-table th {
            background-color: var(--primary-color);
            color: white;
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            padding: 18px 20px;
            text-align: left;
        }
        
        .specs-table td {
            padding: 15px 20px;
            border-bottom: 1px solid var(--light-gray);
        }
        
        .specs-table tr:nth-child(even) {
            background-color: #f9fafc;
        }
        
        .specs-table tr:hover {
            background-color: #f0f4ff;
        }
        
        .spec-label {
            font-weight: 600;
            color: var(--primary-dark);
        }
        
        /* 第六板块：选择理由 */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }
        
        .benefit-item {
            background-color: white;
            border-radius: var(--border-radius);
            padding: 25px;
            box-shadow: var(--box-shadow);
            border-top: 4px solid var(--primary-color);
            transition: var(--transition);
        }
        
        .benefit-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
        }
        
        .benefit-item h3 {
            font-family: 'Montserrat', sans-serif;
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--primary-dark);
        }
        
        /* 第七板块：图片预留位置 - 简化版本 */
        .full-image-section-compact {
            margin-bottom: 40px;
        }
        
        .full-image-placeholder-simple {
            text-align: center;
            color: var(--gray-color);
            font-size: 1rem;
            padding: 10px 0;
        }
        
        .full-image-placeholder-simple i {
            font-size: 2rem;
            margin-bottom: 10px;
            color: var(--gray-color);
            display: block;
        }
        
        /* 第八板块：行动号召 */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            border-radius: var(--border-radius);
            padding: 50px;
            text-align: center;
            margin-bottom: 50px;
        }
        
        .cta-section h2 {
            color: white;
            margin-bottom: 20px;
        }
        
        .cta-section h2:after {
            background-color: white;
        }
        
        .cta-content {
            font-size: 1.2rem;
            margin-bottom: 30px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .cta-button {
            display: inline-block;
            background-color: white;
            color: var(--primary-color);
            padding: 15px 40px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            font-size: 1.1rem;
            transition: var(--transition);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }
        
        .cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
            background-color: var(--light-color);
        }
        
        /* 声明部分 */
        .disclaimer {
            background-color: var(--light-color);
            border-radius: var(--border-radius);
            padding: 30px;
            border-left: 5px solid var(--accent-color);
            font-size: 0.95rem;
            color: var(--gray-color);
            margin-bottom: 50px;
        }
        
        .disclaimer p {
            margin-bottom: 10px;
        }
        
        /* 移动端响应式设计 */
        @media (max-width: 992px) {
            .video-section {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            
            .product-title {
                font-size: 2.3rem;
            }
            
            .section-title {
                font-size: 1.8rem;
            }
            
            .functions-section {
                padding: 30px;
            }
            
            .functions-content {
                grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            }
        }
        
        @media (max-width: 768px) {
            .product-page {
                padding: 0 15px;
            }
            
            .product-title {
                font-size: 2rem;
            }
            
            .section {
                margin-bottom: 60px;
            }
            
            .principle-card, .benefit-item, .function-card {
                padding: 20px;
            }
            
            .cta-section {
                padding: 40px 25px;
            }
            
            .functions-content {
                grid-template-columns: 1fr;
            }
            
            .functions-tabs {
                justify-content: center;
            }
            
            .specs-table th, 
            .specs-table td {
                padding: 12px 15px;
            }
            
            /* 调整紧凑图片区域的间距 */
            .image-section-compact,
            .full-image-section-compact {
                margin-bottom: 30px;
            }
        }
        
        @media (max-width: 576px) {
            .product-title {
                font-size: 1.8rem;
            }
            
            .section-title {
                font-size: 1.6rem;
            }
            
            .cta-button {
                padding: 12px 30px;
                font-size: 1rem;
            }
            
            .cta-section {
                padding: 30px 20px;
            }
            
            .principles-grid, .benefits-grid {
                grid-template-columns: 1fr;
            }
            
            .functions-tabs {
                flex-direction: column;
                align-items: center;
            }
            
            .function-tab {
                width: 100%;
                text-align: center;
            }
            
            /* 进一步调整紧凑图片区域的间距 */
            .image-section-compact,
            .full-image-section-compact {
                margin-bottom: 20px;
            }
        }