@media only screen and (max-width: 768px) {
  /*通用移动设备*/
  .swiper-000 {
    background: url("../images/ad/mad1.jpg") no-repeat !important;
    background-size: 100% !important;
  }
  .swiper-001 {
    background: url("../images/ad/mad2.jpg") no-repeat  !important;
    background-size: 100% !important;
  }
  .swiper-002 {
    background: url("../images/ad/mad3.jpg") no-repeat  !important;
    background-size: 100% !important;
  }
  .swiper-003 {
    background: url("../images/ad/mad4.jpg") no-repeat  !important;
    background-size: 100% !important;
  }
  .swiper-004 {
    background: url("../images/ad/mad5.jpg") no-repeat  !important;
    background-size: 100% !important;
  }
}