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

@import '../common/abstracts/variable';
@import '../common/abstracts/mixin';

@include b(switch) {
  display: inline-block;
  position: relative;
  width: $-switch-width;
  height: $-switch-height;
  border-radius: $-switch-circle-size;
  background: $-switch-inactive-color;
  font-size: $-switch-size;
  transition: all .3s;

  @include e(checkbox) {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
    margin: 0;
  }
  @include e(circle) {
    box-sizing: border-box;
    position: absolute;
    display: inline-block;
    width: $-switch-circle-size;
    height: $-switch-circle-size;
    top: 2px;
    left: 2px;
    background: #fff;
    border-radius: 50%;
    transition: left .3s ease-out;
    box-shadow: 0 2px 4px 0 $-switch-inactive-shadow-color;

    &::after {
      position: absolute;
      content: '';
      width: calc(200% - 2px);
      height: calc(200% - 2px);
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%) scale(0.5);
      border: 1px solid $-switch-border-color;
      border-radius: 50%;
    }
  }
  @include when(checked) {
    background: $-switch-active-color;
    border-color: $-switch-active-color;

    .wd-switch__circle {
      left: calc($-switch-width - $-switch-circle-size - 2px);
      box-shadow: 0 2px 4px 0 $-switch-active-shadow-color
    }
  }
  @include when(disabled) {
    opacity: 0.5;
  }
}