uni-app 弹窗背景透明

<template>
  <div>
    <u-popup v-model="updateShow" mode="center" class="win update-win" width="626" height="896">
      <view 
      	class="winInner" 
      	:style="{
    
    
			background: 'url(/static/new/home/win-updateWinBg.png)',
			backgroundRepeat: 'no-repeat',
			backgroundSize: '100%',
		}"
	  >

      </view>
    </u-popup>
  </div>
</template>
<script>
export default {
    
    
  date() {
    
    
    return {
    
    
      updateShow: true,
    }
  },
}
</script>
<style lang="scss">
.win {
    
    
  /deep/.u-mode-center-box {
    
    
    background-color: rgba(0, 0, 0, 0) !important;
  }

  .winInner {
    
    
    width: 100%;
    height: 100%;
  }
}
</style>