.main-layout {
  height: 100%;
  .layout-content {
    height: 100%;
    overflow-y: auto;
    // padding-bottom: 150px;
    padding-bottom: constant(safe-area-inset-bottom); /*兼容 IOS<11.2*/
    padding-bottom: env(safe-area-inset-bottom); /*兼容 IOS>11.2*/
  }

  .layout-tab {
    flex: 0 0 auto;
    position: fixed;
    bottom: 0;
    width: 100%;
    z-index: 1000;
    background-color: #fff;
    box-shadow: 0 0 3px rgba(0, 0, 0, 0.1);
  }
}