.@{css-prefix}layout {
  display: flex;
  flex-direction: column;
  flex-basis: auto;
  flex: 1;
  &-has-sider {
    flex-direction: row;
    > .@{css-prefix}layout,
    > .@{css-prefix}layout-content {
      overflow-x: hidden;
    }
  }
  &-header, &-footer {
    flex: 0 0 auto;
    background-color: @layout-bg;
  }
  &-header {
    min-height: 64px;
  }
  &-sider {
    position: relative;
    overflow: auto;
    flex-shrink: 0;
    background-color: @layout-bg;
  }
  &-content {
    position: relative;
    flex: 1;
    flex-basis: auto;
    overflow: auto;
  }
  .layout-body {
    flex: 1;
    display: flex;
    height: 100%;
    .layout-nav {
      width: @layout-nav-width;
      background-color: @layout-nav-bg;
      overflow: auto;
      height: calc(~"100vh - 60px");
      ul {
        padding: 0;
        margin: 0;
      }

      .nav-item {
      }

      .nav-sub-item {
      }
    }

    .layout-content {
      position: relative;
      flex: 1;
      overflow: auto;
      height: calc(~"100vh - 60px");
      background-color: @layout-content-bg;
    }
  }
}