nav .content .nav_ul>li:nth-child(2)::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:100% !important;height:3px;background-color:#007BFF}.banner{background-color:#fff;padding-bottom:100px}.banner .swiper-slide a img{object-fit:cover;width:100%;height:100%;transition:all .5s}.bgColorWhite .technology{display:flex;flex-wrap:wrap;justify-content:space-between;padding:30px 0 60px 0;background-color:#fff}.bgColorWhite .technology:nth-child(2n){flex-direction:row-reverse}.bgColorWhite .technology .t-left img{max-width:680px;max-height:410px}.bgColorWhite .technology .t-right{margin-top:30px}.bgColorWhite .technology .t-right h1{position:relative;font-family:Source Han Sans CN;font-weight:bold;font-size:30px;color:#333333;margin-bottom:40px}.bgColorWhite .technology .t-right .t-titile{font-family:Source Han Sans CN;font-weight:500;font-size:18px;color:#333333;line-height:36px}.bgColorWhite .technology .t-right .t-text{width:500px;font-family:Source Han Sans CN;font-weight:400;font-size:16px;color:#999999;line-height:37px;margin-top:30px}@media screen and (max-width:1000px){.banner{background-color:#fff;padding-bottom:0px}.banner .swiper-slide a img{object-fit:cover;width:100%;height:100%;transition:all .5s}.bgColorWhite .technology{display:flex;flex-wrap:wrap;justify-content:space-between;padding:15px 0 15px 0;background-color:#fff}.bgColorWhite .technology .t-left{padding:0 10px}.bgColorWhite .technology .t-left img{width:100%}.bgColorWhite .technology .t-right{padding:0 10px}.bgColorWhite .technology .t-right h1{position:relative;margin-bottom:10px;font-family:Source Han Sans CN;font-weight:bold;font-size:28px;color:#000000;line-height:45px;margin-top:20px}.bgColorWhite .technology .t-right .t-titile{font-family:Source Han Sans CN;font-weight:500;font-size:18px;color:#333333;line-height:36px}.bgColorWhite .technology .t-right .t-text{width:100%;font-family:Source Han Sans CN;font-weight:400;font-size:16px;color:#999999;line-height:37px;margin-top:10px}}