@media screen and (max-width: 1200px) {
  .banner_container {
    padding-top: 15px;
  }
  .banner article{
    height: 200px;
  }
  .nav_banner_text_title1 {
    font-size: 22px;
    margin-bottom: 0;
  }
  .nav_banner_text_title2{
    font-size: 14px;
  }
  .card-box .card-item{
    width: 100%;
    margin: 0;
    margin-bottom: 20px;
  }
  .card-box{
    margin: 40px 20px 0;
    width: auto;
  }
  .card-box .card-item .card-img,.card-box .card-item .card-item-imgbox{
    width: 100%;
  }
  .card-box .card-item .card-c .c-t{
    text-align: center;
  }
}