.up-list {
  &-virtual {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: scroll;
    -webkit-overflow-scrolling: touch;
  }

  &-phantom {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    z-index: -1;
  }

  &-container {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
  }

  &-item {
    margin: 0 0 10px 0;
    overflow: hidden;
  }
}
.virtual-loading-box {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  pointer-events: none; // 可选，防止遮挡操作
}
.loading-box {
  display: inline-block;
  position: absolute;
  width: 100%;
}
.center-empty {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  box-sizing: border-box;
  padding-bottom: 100rpx;
}