body{
  overscroll-behavior-y: none;
}
.van-image-preview {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000 !important;
}
@media screen and (pointer: coarse) {
  @supports (-webkit-backdrop-filter: blur(1px)) and (overscroll-behavior-y: none) {
    html {
      min-height: 100.3%;
      overscroll-behavior-y: none;
    }
  }
}
@media screen and (pointer: coarse) {
  @supports (-webkit-backdrop-filter: blur(1px)) and (not (overscroll-behavior-y: none)) {
    html {
      height: 100%;
      overflow: hidden;
    }

    body {
      margin: 0;
      max-height: 100%;
      overflow: auto;
      -webkit-overflow-scrolling: touch;
    }
  }
}