.ml-introduce{
  background: #f6f6f6 url('~@/assets/images/img_join_01.jpg') top -10vw right -40vw no-repeat;
  background-size: 80vw;
}
.mjoin1-l{
  background: #f6f6f6 url('~@/assets/images/img_join_02.jpg') bottom 0 left -40vw no-repeat;
  background-size: 70vw;
  padding-bottom: 100px;
}
.mt-con{
  width: 70%;
  height: 50vw;
  margin: 0 auto;
}
.mt-body{
  width: 100%;
  height: 100%;
  border: #fff solid 4px;
  box-shadow: 0px 0px 10px #999;
}
.mt-body img{
  height: 100%;
  width: 100%;
}

.mjoin-r,.mjoin-l{
  padding: 0;
}
.mt-intro{
  margin: 80px 0 0 0;
}

.mjoin-l{
  background: #f6f6f6 url('~@/assets/images/img_join_03.jpg') top 0 right -20vw no-repeat;
  background-size: 60vw;
  padding-top: 100px;
}
.mth-bg{
  background: #f6f6f6 url('~@/assets/images/img_join_04.jpg') bottom -100px left -20vw no-repeat;
  background-size: 60vw;
  padding-bottom: 120px;
}