.common-nav > .listNav > li:nth-child(1) .child, .common-nav > .listNav > li:nth-child(2) .child, .common-nav > .listNav > li:nth-child(3) .child{width:36rem!important;}
  .about-banner .youshi li .box{padding: 0 0.8rem !important;
  font-size: 1.4rem !important;}
    @media screen and (max-width: 1280px) {
  .common-nav > .listNav > li > a {
    padding: 2.5rem 1rem!important;
  }
  .common-nav{padding-left:8rem!important;}
}