针对只能点击radio单选控件有效，点击label文字时无法选中项而操作不方便的情况，

.el-cascader-menu .el-radio {
  display: table;
  vertical-align: middle;
  width: 90%;
  height: 100%;
  position: absolute;
  box-sizing: border-box;
  margin-left:-20px;
  padding-left:10px;
}
.el-cascader-menu .el-radio .el-radio__input {
  display: table-cell;
  vertical-align: middle;
}

Element级联选择器优化