【报Bug】条件编译不生效？？？

<style lang="less">  
  .create-activity{  
    view{  
      position: relative  
    }  
    .popup-layer {  
      top: 0;  
      /* #ifdef MP-WEIXIN */  
      top: 65px;  
      /* #endif */  
    }  
    .popup-content {  
      top: 0;  
    }  
  }  
</style>  

<template>  
    <view class="create-activity">  
    <view class="popup-content">1</view>  
    <view class="popup-layer">2</view>  
  </view>  
</template>  

<script>  
    export default {  
        data() {  
            return {  

            }  
        },  
    methods: {  

    },  
        onLoad:async function() {  

        }  
    }  
</script>