.custom-tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-around;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  z-index: 999;
  box-sizing: border-box;

  .tab-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-top: 10px;
    flex: 1;
    position: relative;

    .tab-icon {
      font-size: 40px;
      line-height: 1.2;
      margin-bottom: 2px;
    }

    .tab-label {
      font-size: 20px;
      color: #969799;
      line-height: 1.4;
    }

    &.active .tab-label {
      color: #1989fa;
    }
  }

  /* 中间发布按钮 */
  .tab-publish {
    justify-content: flex-start;
    padding-top: 0;

    .publish-btn {
      width: 88px;
      height: 88px;
      border-radius: 50%;
      background: linear-gradient(135deg, #1989fa 0%, #07c160 100%);
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 8px 24px rgba(25, 137, 250, 0.4);
      margin-top: -30px;

      .publish-icon {
        font-size: 44px;
        color: #fff;
        font-weight: 300;
        line-height: 1;
      }
    }

    .publish-label {
      margin-top: 4px;
    }
  }
}