.sub-menu {
  min-height: 0;
  overflow: hidden;
  -webkit-transition: all 0.5s;
  -moz-transition: all 0.5s;
  -ms-transition: all 0.5s;
  -o-transition: all 0.5s;
  transition: all 0.5s;
  border-bottom: 1px solid $border-dd;
  border-top: 1px solid $border-dd;
  visibility: hidden;
  background-color: $bg-ff;
  .container{
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
  }
  .title {
    font-size: 1.8rem;
    font-weight: bolder;
  }
  .menu-lv1 {
    //border-left: 1px solid $border-dd;
    .item {
      width: 100%;
      padding:0 0.325rem;
      & + .item {
        margin-top: 0.5rem;
      }
      a{
        font-size: 0.7rem;
        line-height: 2rem;
        display: inline-block;
        text-indent: 0.5rem;
        width: 100%;
        color: $font-base;
        &.active,&:hover,&:active,&:focus{
          background-color: $blue;
          color: $font-ff;
        }
      }
    }
  }
  .menu-lv2{
    .item{
      width: 50%;
      display: inline-block;
      float: left;
    }
  }
  .menu-lv3{
    .item{
      width: 100%;
    }
  }
  .menu-lv2,.menu-lv3{
    //border-left: 1px solid $border-dd;
    .item{
      padding:0 0.325rem;
      a{
        padding:0 0.325rem;
        margin-bottom: 0.5rem;
        background-color: $bg-ee;
        font-size: 0.7rem;
        line-height: 2rem;
        display: inline-block;
        width: 100%;
        text-indent: 0.5rem;
        color: $font-base;
        white-space: nowrap;
        overflow: hidden;
        -ms-text-overflow: ellipsis;
        text-overflow: ellipsis;
        &.active,&:hover,&:active,&:focus{
          background-color: $blue;
          color: $font-ff;
        }
      }
    }
  }
}