.about-wrapper{width:100%;padding-bottom:180px;border-top:1px solid #d1d1d1;position:relative;overflow:hidden}.about-wrapper .about-layout .back-company{width:100%;height:300px;background-image:url(../../dist/img/about_back.jpg);background-size:cover;background-position:50%}.about-wrapper .about-layout .router-list{width:100%;height:40px;position:absolute;top:260px;display:flex;align-items:center;justify-content:center}.about-wrapper .about-layout .router-list .router-item{width:25%;display:flex;justify-content:center;align-items:center;text-decoration:none;font-size:14px;font-weight:500;height:40px;color:#fff}.about-wrapper .about-layout .router-list .router-item.active{background:hsla(0,0%,100%,.3)}