yueche_app/uni_modules/wot-design-uni/components/wd-overlay/index.scss

@import "./../common/abstracts/_mixin.scss";
@import "./../common/abstracts/variable.scss";

.wot-theme-dark {
  @include b(overlay) {
    background: $-overlay-bg-dark;
  }
}

@include b(overlay) {
  position: fixed;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  background: $-overlay-bg;
}