.about{width:100%;padding-top:90px;padding-bottom:103px}.product-tab{display:flex;justify-content:center;align-items:flex-end;width:100%;height:100px;background:#fff;box-shadow:0 7px 28px 1px rgba(0,0,0,0.04)}.product-tab .tab-content{display:flex;align-items:center;width:1200px}.product-tab .tab-content .tab-item{display:flex;flex-direction:column;align-items:center;cursor:pointer;width:50%}.product-tab .tab-content .tab-item .tab-item-top{display:flex;justify-content:center;align-items:center}.product-tab .tab-content .tab-item .tab-item-top .item-top-icon{width:35px;height:28px;background-image:url(../../images/product/icons.png);background-repeat:no-repeat;background-size:auto 28px;background-position:-35px 0}.product-tab .tab-content .tab-item .tab-item-top .item-top-icon.two{background-position:-109px 0}.product-tab .tab-content .tab-item .tab-item-top .item-top-title{font-size:16px;font-weight:bold;color:#999;line-height:34px;margin-left:18px;transition:all .3s}.product-tab .tab-content .tab-item .tab-item-line{width:100%;height:4px;background:linear-gradient(90deg, #27ade5, #0062a6);margin-top:20px;opacity:0;transition:all .3s}.product-tab .tab-content .tab-item.active .tab-item-top .item-top-icon{background-position:4px 0}.product-tab .tab-content .tab-item.active .tab-item-top .item-top-icon.two{background-position:-71px 0}.product-tab .tab-content .tab-item.active .tab-item-top .item-top-title{font-size:16px;font-weight:bold;color:#333;line-height:34px;margin-left:18px}.product-tab .tab-content .tab-item.active .tab-item-line{opacity:1}.product-detail{display:flex;flex-direction:column;align-items:center;width:100%;margin-top:36px}.product-detail .detail-content{display:flex;justify-content:space-between;flex-wrap:wrap;width:1200px}.product-detail .detail-content .product-items{position:relative;display:block;width:590px;height:442px;overflow:hidden;margin-bottom:20px}.product-detail .detail-content .product-items .product-item-box{position:absolute;top:0;left:0;width:590px;height:442px;background-repeat:no-repeat;background-size:cover;transform:scale(1);transition:all .8s}.product-detail .detail-content .product-items .product-item-line{position:absolute;bottom:0;left:0;display:flex;justify-content:center;align-items:center;width:590px;height:60px;background-color:rgba(2,102,166,0.8);font-size:16px;font-weight:bold;color:#fff;line-height:24px;opacity:0;transition:all .8s}.product-detail .detail-content .product-items:hover .product-item-box{transform:scale(1.2)}.product-detail .detail-content .product-items:hover .product-item-line{opacity:1}