import * as XLSX from 'xlsx'

/deep/ 替换成 ::v-deep
css 中@import 替换成 @use



sidebar.scss
@use './variables.scss';
  &:hover {
      background-color: variables.$menuHover !important;
    }






Layout.vue
  @use "../../styles/mixin.scss";
  .app-wrapper {
    @include mixin.clearfix;