jzhw_uni/wxcomponents/vant/tab/index.wxml

<wxs src="../wxs/utils.wxs" module="utils" />

<view
  class="custom-class {{ utils.bem('tab__pane', { active, inactive: !active }) }}"
  style="{{ shouldShow ? '' : 'display: none;' }}"
>
  <slot wx:if="{{ shouldRender }}" />
</view>