/* 产品容器 */
        .product-container {

            margin: 30px auto;
            padding: 0 0px;
        }
        
        /* 清除浮动 */
        .product-row::after {
            content: "";
            display: table;
            clear: both;
        }
        
        /* 左侧导航区域 (桌面端25%) */
        .product-left {
            float: left;
            width: 28%;
            padding-right: 15px;
        }
        
        /* 左侧顶部区域 */
        .product-left-top {
            background-color: #f0f0f0;
            padding: 25px 20px;
            margin-bottom: 0px;
            border-radius: 8px 8px 0px 0px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.05);
        }
        
        .product-main-title {
            color: #3aaf43;
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.2;
        }
        
        .product-sub-title {
            color: #999999;
            font-size: 17px;
            font-weight: 400;
        }
        
        /* 左侧分类导航 */
        .product-left-bottom {
            background-color: #fff;
            border-radius: 0px 0px 8px 8px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
            overflow: hidden;
        }
        
        .product-category-list {
            list-style: none;
        }
        
        .product-category-item {
            border-bottom: 1px solid #eaeaea;
        }
        
        .product-category-item:last-child {
            border-bottom: none;
        }
        
        .product-category-link {
            display: block;
            padding: 15px 20px;
            color: #333;
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            transition: all 0.3s ease;
            position: relative;
            left: 0;
        }
        
        /* 分类导航悬停效果 */
        .product-category-link:hover,
        .product-category-item.active .product-category-link {
            color: #28a745;
            left: 4px;
        }
        
        .product-category-link:hover::before,
        .product-category-item.active .product-category-link::before {
            content: "";
            position: absolute;
            left: -3px;
            top: 0;
            height: 100%;
            width: 4px;
            background-color: #28a745;
            border-radius: 0 3px 3px 0;
        }
        
        /* 右侧产品区域 (桌面端75%) */
        .product-right {
            float: left;
            width: 72%;
            padding-left: 15px;
        }
        
        /* 产品网格布局 - 桌面端4列 */
        .product-grid {
            display: flex;
            flex-wrap: wrap;
            margin: 0 -10px;
        }
        
        .product-item {
            width: 25%;
            padding: 10px;
        }
        
        .product-item-inner {
            background: #fff;
            border-radius: 0px;
            overflow: hidden;
			border:#dddddd 1px solid;
            box-shadow----: 0 3px 10px rgba(0,0,0,0.08);
            transition: all 0.3s ease;
            height=: 100%;
            display: flex;
            flex-direction: column;
        }
        
        .product-item-inner:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }
        
        /* 图片容器 (1:1比例) */
        .product-item-img {
            position: relative;
            padding-top: 100%; /* 1:1比例 */
            overflow: hidden;
            background-color: #f9f9f9;
        }
        
        .product-item-img img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        
        .product-item-inner:hover .product-item-img img {
            transform: scale(1.05);
        }
        
        /* 产品标题区域 */
        .product-item-info {
            padding: 15px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }
        
        .product-item-title {
            color: #333;
            font-size: 15px;
            font-weight: 500;
            margin-bottom: 8px;
            line-height: 1.4;
            text-decoration: none;
            display: block;
            transition: color 0.3s ease;
        }
        
        .product-item-inner:hover .product-item-title {
            color: #28a745;
        }
        
        .product-item-subtitle {
            color: #333;
            font-size: 15px;
            font-weight: 500;
        }
        
        .product-item-price {
            color: #e74c3c;
            font-weight: 700;
            font-size: 18px;
            margin-top: 10px;
        }
        
        /* 响应式设计 - 平板端 */
        @media (max-width: 992px) {
            .product-left {
                width: 100%;
                float: none;
                padding-right: 0;
                margin-bottom: 20px;
            }
            
            .product-right {
                width: 100%;
                float: none;
                padding-left: 0;
            }
            
            .product-item {
                width: 33.333333%; /* 平板端2列 */
            }
        }
        
        /* 响应式设计 - 移动端 */
        @media (max-width: 768px) {
            .product-container {
                margin: 0px auto;
                padding: 0 5px;
            }
            
            .product-left {
                display: none; /* 移动端隐藏左侧导航 */
            }
            
            .product-right {
                padding-left: 0;
            }
            
            .product-item {
                width: 50%; /* 移动端2列 */
            }
            
            .product-main-title {
                font-size: 24px;
            }
            
            .product-sub-title {
                font-size: 16px;
            }
        }
        
        /* 响应式设计 - 小屏移动端 */
        @media (max-width: 480px) {
            .product-item {
                width: 100%; /* 小屏移动端1列 */
            }
        }
        
        /* 低版本浏览器兼容性 */
        /* 为IE9及以下提供基本浮动布局支持 */
        .lt-ie10 .product-grid {
            display: block;
            overflow: hidden;
        }
        
        .lt-ie10 .product-item {
            float: left;
        }
        
        /* 为IE8及以下提供基础样式支持 */
        .lt-ie9 .product-item {
            width: 23.5%;
            margin-right: 2%;
        }
        
        .lt-ie9 .product-item:nth-child(4n) {
            margin-right: 0;
        }
        
        /* 为不支持flexbox的浏览器提供浮动布局 */
        .no-flexbox .product-grid {
            display: block;
            overflow: hidden;
        }
        
        .no-flexbox .product-item {
            float: left;
        }
       
/* 产品内容 */


        .productv-container {
            margin: 0 auto;
            background: white;
            border-radius: 0px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            overflow: hidden;
        }
        
        /* 顶部区域样式 */
        .productv-top {
            display: flex;
            flex-wrap: wrap;
            padding: 20px;
            border-bottom: 1px solid #eaeaea;
        }
        
        .productv-top-left {
            flex: 1;
            min-width: 300px;
            padding-right: 30px;
        }
        
        .productv-image {
            width: 100%;
			height: 100%;
            padding-top-: 100%; /* 1:1比例 */
            background--: linear-gradient(45deg, #6a9c3f, #8bc34a);
            border-radius: 0px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        .productv-image-content {
     
            top: 0;
            left: 0;
            width: 100%;
            height=: 100%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
            padding: 20px;
            text-align: center;
        }
        
        .productv-top-right {
            flex: 1;
            min-width: 300px;
            display: flex;
            flex-direction: column;
        }
        
        .productv-line {
            padding: 15px 0;
            border-bottom: 1px solid #eee;
            display: flex;
            align-items: center;
        }
        
        .productv-title {
            font-size: 32px;
            font-weight: 700;
            color: #2c3e50;
        }
        
        .productv-text {
            font-size: 16px;
            color: #333;
        }
        
        .productv-btn {
            display: inline-block;
            background: #4CAF50;
            color: white;
            padding: 12px 30px;
            border-radius: 0px;
            text-decoration: none;
            font-weight: 500;
            text-align: center;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 10px rgba(76, 175, 80, 0.3);
            position: relative;
            overflow: hidden;
        }
        
        .productv-btn:hover {
            background: #43A047;color: white;
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(76, 175, 80, 0.4);
        }
        
        .productv-btn:active {
            transform: translateY(1px);
        }
        
        /* 中间区域样式 */
        .productv-middle {
            padding: 30px;
        }
        
        .productv-section-title {
            display: inline-block;
            background: #4CAF50;
            color: white;
            padding: 10px 25px;
            border-radius: 0px;
            font-size: 20px;
            font-weight: 500;
            margin-bottom:0px;
            position: relative;
            overflow: hidden;
        }
        
        .productv-divider {
            height: 1px;
            background: #eaeaea;
            margin: 20px 0;
        }
        
        .productv-content {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-bottom: 40px;
        }
        
        .productv-content-text {
            flex: 1;
            min-width: 300px;
            font-size: 16px;
            line-height: 1.8;
        }
        
        .productv-content-image {
            flex: 1;
            min-width: 300px;
            background: linear-gradient(45deg, #64b5f6, #90caf9);
            border-radius: 12px;
            height: 300px;
            display: flex;
            justify-content: center;
            align-items: center;
            color: white;
            font-size: 18px;
            font-weight: 600;
        }
        
        .productv-nav {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 20px;
        }
        
        .productv-prev-next {
            flex: 1;
            min-width: 200px;
        }
        
        .productv-prev, .productv-next {
            padding: 12px 20px;
            margin-bottom: 10px;
            border-radius: 8px;
            display: block;
            text-decoration: none;
            color: #333;
            transition: all 0.2s ease;
        }
        
        .productv-prev:hover, .productv-next:hover {
            background: #f8f9fa;
        }
        
        .productv-prev-label, .productv-next-label {
            font-size: 14px;
            color: #7f8c8d;
            margin-bottom: 5px;
        }
        
        .productv-prev-title, .productv-next-title {
            font-weight: 600;
            color: #2c3e50;
        }
        
        .productv-prev .productv-prev-label::before {
            content: "";
        }
        
        .productv-next .productv-next-label::after {
            content: "";
        }
        
        .productv-back {
            flex: 0 0 auto;
            align-self: center;
        }
        
        /* 底部区域样式 */
        .productv-bottom {
            padding: 30px;
            background: #f8f9fa;
            border-top: 1px solid #eaeaea;
        }
        
        .productv-related-title {
            font-size: 24px;
            font-weight: 600;
            color: #2c3e50;
            margin-bottom: 25px;
            padding-left: 10px;
            border-left: 5px solid #4CAF50;
        }
        
        .productv-related-items {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }
        
        .productv-related-item {
            flex: 1;
            min-width: 200px;
            background: white;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
        }
        
        .productv-related-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
        }
        
        .productv-related-image {
            height: 180px;
            background: linear-gradient(45deg, #ffb74d, #ffcc80);
            display: flex;
            justify-content: center;
            align-items: center;
            color: white;
            font-weight: 600;
        }
        
        .productv-related-content {
            padding: 20px;
        }
        
        .productv-related-name {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
            color: #2c3e50;
        }
        
        .productv-related-desc {
            font-size: 14px;
            color: #7f8c8d;
            margin-bottom: 15px;
        }
        
        .productv-related-btn {
            display: inline-block;
            background: #4CAF50;
            color: white;
            padding: 8px 20px;
            border-radius: 30px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: all 0.2s ease;
        }
        
        .productv-related-btn:hover {
            background: #43A047;
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .productv-top {
                flex-direction: column;
            }
            
            .productv-top-left {
                padding-right: 0;
                margin-bottom: 30px;
            }
            
            .productv-content {
                flex-direction: column;
            }
            
            .productv-nav {
                flex-direction: column;
            }
            
            .productv-back {
                align-self: flex-start;
            }
        }
        
        @media (max-width: 480px) {
            .productv-container {
                border-radius: 10px;
            }
            
            .productv-top, .productv-middle, .productv-bottom {
                padding: 20px;
            }
            
            .productv-title {
                font-size: 24px;
            }
            
            .productv-section-title {
                font-size: 18px;
            }
            
            .productv-related-title {
                font-size: 20px;
            }
        }
        
        /* 动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .productv-top, .productv-middle, .productv-bottom {
            animation: fadeIn 0.6s ease-out forwards;
        }
        
        .productv-middle {
            animation-delay: 0.1s;
        }
        
        .productv-bottom {
            animation-delay: 0.2s;
        }