.zt-scroll-fixed-container {
  position: relative;
  overflow: hidden;
}
.zt-scroll-fixed-bottom {
  position: absolute;
  width: 100%;
  overflow-y: auto;
  padding-bottom: 32px;
  box-sizing: border-box;
  background-color: #4285f4;
}
.zt-scroll-fixed-top {
  .van-tabs {
    width: 100%;
    background-color: #fff;
    .van-tabs__wrap {
      border-bottom: 1px solid #f4f4f4;
    }
    .van-tab {
      background-color: #fff;
    }
    .van-tabs__content {
      overflow: auto;
      box-sizing: border-box;
    }
  }
  .zt-scroll-fixed-top-placeholder {
    width: 100%;
    height: 26px;
    background-color: #fff;
    z-index: 100;
    position: relative;
    user-select: none;
    cursor: pointer; /* 提示可点击 */
    transition: background-color 0.15s; /* 平滑过渡，适配触摸反馈 */
    &.placeholder-touch-active {
      background-color: #fafafa; /* 比 hover 更深 */
    }
    &.placeholder-radius {
      border-radius: 10px 10px 0 0;
    }
    &::after {
      content: '';
      position: absolute;
      height: 4px;
      width: 60px;
      border-radius: 4px;
      top: 50%;
      left: 50%;
      margin-left: -30px;
      margin-top: -2px;
      background-color: #e8e8e8;
    }
  }
}