meeting-management-applet-zfb/vant-aliapp/dist/overlay/index.axml

<view class='overlay-index {{className}}' style='{{style}}' ref='saveChildRef0'>
  <van-transition show='{{ show }}' custom-class='van-overlay' custom-style='z-index: {{ zIndex }}; {{ customStyle }}' duration='{{ duration }}' inited='{{inited}}' display='{{display}}' onClick='onClick' catchTouchMove='antmoveAction' data-antmove-touchmove='noop' ref='saveChildRef1'>
    <slot>
    </slot>
  </van-transition>
</view>