wutian-miniprogram/src/custom-tab-bar/index.scss

.tabbar {
  padding: 0 0 calc(env(safe-area-inset-bottom) + 12rpx);
  display: flex;
  justify-content: space-between;
  background-color: #fff;
  box-shadow: 0rpx 3rpx 27rpx 0rpx rgba(40, 48, 49, 0.1);
  .custom {
    flex-shrink: 0;
    position: relative;
    width: 94rpx;
    height: 64rpx;
    .add {
      position: absolute;
      top: -42rpx;
      width: 94rpx;
      height: 94rpx;
    }
    .popup-tip {
      padding: 22rpx 48rpx;
      position: absolute;
      top: -50rpx;
      left: 50%;
      transform: translate(-50%, -100%);
      border-radius: 16rpx;
      background-color: rgba(20, 21, 21, 0.76);
      .content {
        text-align: center;
        font-size: 28rpx;
        color: #fff;
        white-space: nowrap;
        line-height: 32rpx;
        .plus {
          font-size: 52rpx;
          font-weight: bold;
        }
      }
      .pt-footer {
        margin-top: 16rpx;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 24rpx;
        .cancel {
          padding: 8rpx 28rpx;
          font-size: 24rpx;
          color: rgba(255, 255, 255, 1);
        }
        .ok {
          padding: 8rpx 28rpx;
          font-size: 24rpx;
          color: rgba(20, 21, 21, 1);
          line-height: 32rpx;
          border-radius: 80rpx;
          background-color: #fff;
        }
      }
      &::after {
        position: absolute;
        content: '';
        bottom: -10rpx;
        left: 50%;
        transform: translateX(-50%);
        width: 0;
        height: 0;
        border-style: solid;
        border-width: 12rpx 12rpx 0 12rpx;
        border-color: rgba(20, 21, 21, 0.76) transparent transparent transparent;
      }
    }
  }
  .tab-item {
    padding-top: 10rpx;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    .icon {
      display: block;
      width: 48rpx;
      height: 48rpx;
    }
    .icon-active {
      display: none;
      width: 48rpx;
      height: 48rpx;
    }
    .name {
      margin-top: 8rpx;
      font-size: 22rpx;
      color: rgba(20, 21, 21, 1);
      line-height: 21rpx;
    }
    &.active {
      .icon {
        display: none;
      }
      .icon-active {
        display: block;
      }
      .name {
        color: rgba(0, 180, 197, 1);
      }
    }
  }
}