elementui 单独修改一个label的样式

样式修改不要全局，使用/deep/穿透

<el-form>
  <el-form-item label="活动区域" class="change-label-calss">
       <el-input v-model=""></el-input>
  </el-form-item>
</el-form>
<style scoped>
    .change-label-calss /deep/ .el-form-item__label{
        color: red;
    }
</style>