@media only screen and (max-width: 768px){

  /*关于我们*/
  #w_grid-1639029776479{
    width:100%;
    margin:30px auto;
  }
  #w_grid-1639029332678{

    margin-bottom:10px;
  }
   /*产品中心*/
  #w_grid-1632652933457{
    margin:30px auto 20px;
  }
  #w_grid-1639031255426{
    width:100%;
    margin-bottom: 30px;
    padding:0 5px;
  }
 /*科技创新*/
  #w_grid-1639034363840{
    min-height:160px;
    margin-top:80px;
  }
  #w_grid-1639034569973{
    margin-top: -80px;
  }
  /*新闻资讯*/
  #w_grid-1632655869343{
    margin-top: 30px;
  }
  #w_grid-1632655915853{
    width:100%;
    padding:0;
    margin: 20px auto 30px;
  }
}
@media only screen and (max-width: 1440px) and (min-width: 769px){
  /*关于我们*/
  #w_grid-1639029776479{
    margin:70px auto;
  }
  #w_grid-1632238413819{
    margin:40px auto 70px;
  }
  /*产品中心*/
  #w_grid-1632652933457{
    margin:70px auto 30px;
  }
  #w_grid-1639031255426{
    margin-bottom: 60px;
  }
  /*科技创新*/
  #w_grid-1639034363840{
    min-height:590px;
  }
  #w_grid-1639034569973{
    margin-top: 50px;
  }
  /*新闻资讯*/
  #w_grid-1632655869343 {
    margin-top: 70px;
  }
  #w_grid-1632655915853{
    margin: 40px auto 70px;
  }
}