message: style(Slider): improve dark mode color
diff: @@ -10,6 +10,10 @@ body {
  --van-slider-button-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  }
  +.van-theme-dark {
  + --van-slider-inactive-background: var(--van-background-3);
  +}
  +
  .van-slider {
  position: relative;
  width: 100%;
  