.jxky {
  display: none;
}

@media (max-width: 640px) {
  .jxky {
    overflow: hidden;
    background-color: #5b0084;
    display: block;
    
  }
  .jxky-cate {
    opacity: 0;
    transition: all linear .3s;
    transition-delay: .16s;
  }
  .jxky-cate.move-in {
    opacity: 1;
  }
  .jxky .title {
    margin-top: 0;
    height: 6.5rem;
    width: 100%;
    padding-top: 2rem;
    box-sizing: border-box;
  }
  .jxky .title .ch {
    font-size: .94rem;
    font-weight: normal;
    margin-bottom: .52rem;
  }
  .jxky .title .en {
    font-size: .63rem;
    color: #B3B3B3;
    text-align: center;
  }
  .jxky  .jxky-cate {
    display: flex;
  }
  .jxky  .jxky-cate .jxky-item {
    width: 25%;
    height: 9.3rem;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    position: relative;
  }
  .jxky  .jxky-cate .jxky-item:nth-child(1) {
    background-image: url("../image/imge_teaching.png");
  }
  .jxky  .jxky-cate .jxky-item:nth-child(2) {
    background-image: url("../image/imge_reserch.png");
  }
  .jxky  .jxky-cate .jxky-item:nth-child(3) {
    background-image: url("../image/imge_lab.png");
  }
  .jxky  .jxky-cate .jxky-item:nth-child(4) {
    background-image: url("../image/imge_shospitals.png");
  }
  .jxky  .jxky-cate .jxky-item .jxky-item-text {
    position: absolute;
    width:  calc(100% - .6rem);;
    height: 2.45rem;
    left: 50%;
    bottom: .3rem;
    transform: translate(-50%, 0);
    background-color: #fff;
    padding: .2rem;
    padding-top: .8rem;
    padding-bottom: 0;
    letter-spacing: 0;
  }
  .jxky  .jxky-cate .jxky-item .jxky-item-text .ch {
    color: #000;
    font-size: .63rem;
    margin: 0;
    margin-bottom: .35rem;
  }
  .jxky  .jxky-cate .jxky-item .jxky-item-text .en {
    font-size: .31rem;
    color: #969696;
    margin: 0;
    word-break: break-all;
    white-space: pre-wrap;
    width: 100%;
    text-align: center;
  }
}