.#{$ns}Tabs {
  &-drag-tip {
    display: none;
  }

  &-linksWrapper {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    border-bottom: var(--Tabs-borderWidth) solid var(--Tabs--simple-split-color);
  }

  &-linksContainer-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-start;

    .#{$ns}Tabs-addable {
      display: flex;
      margin-left: var(--Tabs-add-margin);
      align-items: center;
      justify-content: flex-start;
      padding: var(--Tabs--line-addPadding);
      white-space: nowrap;
      cursor: pointer;

      &-icon {
        width: var(--Tabs-add-icon-size);
        height: var(--Tabs-add-icon-size);
        padding: var(--Tabs-add-icon-padding);
        margin-right: var(--Tabs-add-icon-margin);
      }

      span {
        margin-left: 4px;
        line-height: 1;
      }

      &:hover {
        color: var(--primary);
        fill: var(--primary);
      }
    }

    .#{$ns}Tabs-linksContainer {
      flex-grow: 1;

      position: relative;
      display: flex;
      align-items: center;
      overflow: hidden;

      // &--overflow {
      //   flex: 1;

      //   .#{$ns}Tabs-links {
      //     max-width: 0;
      //   }
      // }

      &-arrow {
        margin: var(--Tabs--line-addPadding);
        width: 16px;
        height: 100%;
        display: flex;
        align-items: center;
        cursor: pointer;
        box-sizing: content-box;

        .iconfont {
          font-size: var(--Remark-icon-fontSize);
        }
        &:hover {
          color: var(--icon-onHover-color);
        }

        &--left {
          padding-right: 16px;
        }

        &--right {
          padding-left: 16px;
        }

        &--disabled {
          .iconfont {
            cursor: not-allowed;
            color: var(--Number-handler-onDisabled-color);
          }

          &:hover {
            color: var(--Number-handler-onDisabled-color);
          }
        }
      }

      &-main {
        position: relative;

        overflow-y: auto;
        scrollbar-width: none;
        width: 100%;
        &::-webkit-scrollbar {
          display: none;
        }

        .#{$ns}Tabs-links {
          // position: relative;
          min-width: 100%;
          max-width: 0;
          height: 100%;
          overflow-x: hidden;

          .#{$ns}Tabs-links-drag {
            position: absolute;
            height: 100%;
            top: 0;
            box-shadow: 0 0 0 1px red;
          }
        }
      }
    }
  }

  &-links {
    display: flex;
    margin: 0;
    padding: 0;
    list-style: none;
    user-select: none;
    @include clearfix();

    > .#{$ns}Tabs-link {
      position: relative;
      flex: none;
      display: flex;
      max-width: var(--Tabs-link-maxWidth);
      overflow: hidden;

      .#{$ns}Tabs-link-edit {
        max-width: var(--Tabs-link-maxWidth);
        border: none;
        outline: none;
      }

      .#{$ns}Tabs-link-close {
        margin: var(--Tabs-close-marginTop) 0 0 var(--Tabs-close-margin);
        fill: var(--Tabs-gray-color);
        cursor: pointer;

        .#{$ns}Tabs-link-close-icon {
          width: var(--Tabs-close-size);
        }
      }

      > a:first-child {
        font-size: var(--Tabs-linkFontSize);
        outline: none;
        border: var(--Tabs-borderWidth) solid transparent;
        border-top-left-radius: var(--Tabs-borderRadius);
        border-top-right-radius: var(--Tabs-borderRadius);
        color: var(--Tabs-color);
        margin: var(--Tabs-linkMargin);
        padding: var(--Tabs-linkPadding);
        text-decoration: none;
        cursor: pointer;
        display: block;

        text-overflow: ellipsis;
        overflow: hidden;
        white-space: nowrap;
      }

      > .#{$ns}Combo-toolbarBtn {
        position: absolute;
        right: -10px;
        top: -10px;
        z-index: 10;
        display: none;
      }

      &:hover > .#{$ns}Combo-toolbarBtn {
        display: block;
      }

      &:hover > a:first-child,
      > a:first-child:focus {
        text-decoration: none;
      }

      &.disabled,
      &.is-disabled {
        cursor: not-allowed;

        > a:first-child {
          // color: var(--Tabs-onDisabled-color);
          color: var(--Tabs-link-disabled-color);
          background: transparent;
          border-color: transparent;
          pointer-events: none;
        }
      }

      &.active > a:first-child,
      &.is-active > a:first-child {
        color: var(--Tabs-onActive-color);
        background: var(--Tabs-onActive-bg);
        border-color: var(--Tabs-onActive-borderColor);
        border-bottom-color: transparent;
      }
    }
  }

  &-content {
    background: var(--Tabs-content-bg);
    border-style: solid;
    border-width: 0 var(--Tabs-borderWidth) var(--Tabs-borderWidth);
    border-color: var(--Tabs--simple-split-color);
  }

  &-pane {
    display: none;
    padding: var(--gap-base);
    opacity: 0;
    transition: opacity var(--animation-duration) linear;

    &.is-active {
      display: block;
    }

    &.in {
      opacity: 1;
    }
  }

  &--line {
    > .#{$ns}Tabs-linksContainer-wrapper {
      border-bottom: var(--Tabs-borderWidth) solid
        var(--Tabs--simple-split-color);

      &--toolbar {
        .#{$ns}Tabs-link {
          padding-top: 10px;
        }

        .#{$ns}Tabs-addable {
          padding: 0;
        }

        .#{$ns}Tabs-linksContainer-arrow {
          margin: 0;
        }
      }
    }

    > .#{$ns}Tabs-linksContainer > .#{$ns}Tabs-linksContainer-arrow {
      top: -4px;
    }

    > .#{$ns}Tabs-linksWrapper > .#{$ns}Tabs-links,
    > .#{$ns}Tabs-linksContainer-wrapper
      > .#{$ns}Tabs-linksContainer
      > .#{$ns}Tabs-linksContainer-main
      > .#{$ns}Tabs-links {
      border-bottom-color: var(--Tabs--line-borderColor);

      > li {
        padding-left: var(--Tabs--line-padding);
        padding-right: var(--Tabs--line-padding);

        &:first-of-type {
          padding-left: 0;
        }

        &:last-of-type {
          padding-right: 0;
        }

        > a:first-child {
          border-width: 0 0 var(--Tabs--line-borderWidth) 0;
          padding: var(--Tabs--line-linkPadding);
        }

        &:not(.is-disabled):hover {
          a:first-child {
            color: var(--primary);
            background: transparent;
            // border-color: transparent;
          }

          .#{$ns}Tabs-link-close {
            fill: var(--primary);
          }
        }

        &:last-child {
          > a {
            margin: 0;
          }
        }

        &.is-active {
          > a:first-child,
          > a:first-child:hover,
          > a:first-child:focus {
            border-color: var(--Tabs--line-onHover-borderColor);
            color: var(--Tabs--line-onHover-color);
            background: transparent;
          }
        }
      }
    }

    > .#{$ns}Tabs-content {
      border-width: 0;
      background: var(--Tabs--line-content-bg);
    }
  }

  &--card {
    > .#{$ns}Tabs-linksContainer {
      background: var(--Tabs--card-bg);
    }

    > .#{$ns}Tabs-linksContainer-wrapper {
      background: var(--Tabs--card-bg);

      > .#{$ns}Tabs-addable {
        margin-left: 0;
        padding: 0;
        padding-top: var(--Tabs--card-add-gap-top);
        margin-right: var(--Tabs--card-add-gap);
      }

      > .#{$ns}Tabs-linksContainer {
        .#{$ns}Tabs-addable {
          padding: 0;
        }

        > .#{$ns}Tabs-linksContainer-arrow {
          padding: var(--Tabs--card-arrow-gap) var(--Tabs--card-add-gap) 0;
          margin-bottom: 0;
        }

        > .#{$ns}Tabs-linksContainer-main > .#{$ns}Tabs-links {
          padding: var(--Tabs--card-padding);
          border-top: px2rem(1px) solid var(--Tabs--card-borderTopColor);

          > li {
            padding: var(--Tabs--card-linkPadding);
            margin: var(--Tabs--card-linkMargin);
            border-top-left-radius: var(--Tabs-borderRadius);
            border-top-right-radius: var(--Tabs-borderRadius);
            cursor: pointer;

            &.is-active {
              border-color: var(--Tabs--card-onActive-borderColor);
              color: var(--primary);
              border-bottom-color: var(--Tabs--card-onActive-bg);
              background: var(--Tabs--card-onActive-bg);
            }

            &.is-disabled {
              cursor: not-allowed;
            }

            &:hover,
            &:focus {
              // color: #666;
              background: var(--Tabs--card-onActive-bg);
              border-bottom-color: transparent;
            }

            > a:first-child {
              padding: 0;
              border: none;
            }
          }
        }
      }

      > .#{$ns}Tabs-toolbar {
        padding: var(--Tabs--card-padding);
        margin: 0;
      }
    }

    > .#{$ns}Tabs-content {
      border-width: 0;
    }
  }

  &--radio {
    > .#{$ns}Tabs-linksContainer-wrapper {
      margin-bottom: px2rem(10px);

      .#{$ns}Tabs-addable {
        padding: 0;
      }

      > .#{$ns}Tabs-linksContainer {
        > .#{$ns}Tabs-linksContainer-arrow {
          margin-bottom: 0;
        }

        > .#{$ns}Tabs-linksContainer-main > .#{$ns}Tabs-links {
          border: 0;

          > li {
            margin: 0;
            align-items: center;

            border-width: px2rem(1px);
            border-color: var(--Tabs--simple-split-color);
            text-align: center;
            margin: 0;
            padding: 0 px2rem(10px);
            min-width: 68px;
            height: px2rem(30px);
            background: var(--Tabs--radio-bg);
            border-style: solid;

            &:hover,
            &:focus {
              color: var(--primary);
            }

            > a:first-child {
              padding: 0;
              border-radius: 0;
              line-height: px2rem(30px);
              font-size: var(--fontSizeSm);
              border: none;
            }

            &.is-active {
              background: var(--primary);
              border-color: var(--primary);
              position: relative;
              z-index: 1;

              > a:first-child {
                background: var(--primary);
                color: var(--Tabs--radio-bg);
              }

              > .#{$ns}Tabs-link-close {
                fill: var(--Tabs--radio-bg);
              }
            }
          }

          > li + li {
            margin-left: -1px;
          }
        }
      }
    }

    > .#{$ns}Tabs-content {
      border-top: var(--Tabs-borderWidth) solid var(--Tabs--simple-split-color);
    }
  }

  // todo 第一个选中，有一像素的空隙待修复。
  // 不带眼镜应该看不出来。
  &--tiled {
    > .#{$ns}Tabs-linksContainer-wrapper {
      align-items: stretch;
      border-bottom: none;

      > .#{$ns}Tabs-linksContainer {
        flex: 1;
        align-items: stretch;

        > .#{$ns}Tabs-linksContainer-arrow {
          margin-bottom: 0;
          padding: 0 10px;
          height: auto;
          align-items: center;
          justify-content: center;
          border-width: var(--Tabs-borderWidth);
          border-style: solid;
          border-color: var(--Tabs--simple-split-color);
        }

        &.#{$ns}Tabs-linksContainer--overflow
          > .#{$ns}Tabs-linksContainer-main
          > .#{$ns}Tabs-links
          > .#{$ns}Tabs-link {
          &:first-of-type {
            border-left-width: 0;
          }
          &:last-of-type {
            border-right-width: 0;
          }
        }
      }

      .#{$ns}Tabs-addable {
        padding: 0 var(--Tabs--tiled-add-gap);
        margin-left: 0;
        white-space: nowrap;
        border-style: solid;
        border-color: var(--Tabs--simple-split-color);
        border-width: var(--Tabs-borderWidth);
        border-left-width: 0;
      }
    }

    > .#{$ns}Tabs-linksContainer-wrapper
      > .#{$ns}Tabs-linksContainer
      > .#{$ns}Tabs-linksContainer-main
      > .#{$ns}Tabs-links {
      width: 100%;
      display: flex;
      flex-direction: row;
      padding-left: var(--Tabs-borderWidth);
      border-bottom: 0;

      > li {
        max-width: unset;
        flex-grow: 1;
        text-align: center;
        margin: 0 0 0 calc(var(--Tabs-borderWidth) * -1);
        border-style: solid;
        border-color: var(--Tabs--simple-split-color);
        border-width: var(--Tabs-borderWidth);
        padding: var(--Tabs-linkPadding);
        cursor: pointer;

        &:hover,
        &:focus {
          position: relative;
          z-index: 1;
          border-color: var(--Tabs-onActive-borderColor);
          color: var(--primary);
        }

        > a:first-child {
          margin: 0;
          border-radius: 0;
          padding: 0;
          flex: 1;
          border: none;
        }

        &.is-active {
          cursor: default;
          color: var(--primary);
          border-color: var(--Tabs--simple-split-color);
          border-top-color: var(--primary);
          border-bottom-color: transparent;
        }

        &.is-disabled {
          cursor: not-allowed;
        }
      }
    }
  }

  &--vertical {
    display: flex;
    min-height: px2rem(200px);
    border: var(--Tabs-borderWidth) solid var(--Tabs--simple-split-color);
    border-radius: 0;

    > .#{$ns}Tabs-linksWrapper {
      flex-direction: column;
      background: var(--Tabs--vertical-onActive-container-bg);
    }

    > .#{$ns}Tabs-linksWrapper > .#{$ns}Tabs-links {
      width: var(--Tabs--vertical-width);
      border: none;
      border-right: var(--Tabs--vertical-onActive-container-borderRight);
      flex-direction: column;

      > li {
        margin: 0 0 0 -1px;
        display: block;

        > a:first-child {
          border-color: transparent;
          border-radius: 0;
          border-width: var(--Tabs--vertical-onActive-borderWidth);
          margin: 0;

          &:hover,
          &:focus {
            color: var(--primary);
            border-color: transparent;
          }
        }

        &.is-active {
          > a:first-child,
          > a:first-child:hover,
          > a:first-child:focus {
            color: var(--Tabs--vertical-onActive-color);
            background: var(--Tabs--vertical-onActive-bg);
            border-color: var(--Tabs--vertical-onActive-border);
          }
        }
      }
    }

    > .#{$ns}Tabs-content {
      border: none;
      flex-grow: 1;

      > .#{$ns}Tabs-pane {
        height: 100%;
      }
    }
  }

  &--sidebar {
    display: flex;
    height: 100%;

    &.sidebar--left {
      flex-direction: row;

      > .#{$ns}Tabs-content {
        border-right: none;
      }
    }
    &.sidebar--right {
      flex-direction: row-reverse;

      > .#{$ns}Tabs-content {
        border-left: none;
      }
    }

    > .#{$ns}Tabs-linksWrapper {
      flex: 0 0 var(--Tabs--sidebar-sideWidth);
      align-items: flex-start;
      border: none;
    }

    > .#{$ns}Tabs-linksWrapper > .#{$ns}Tabs-links {
      position: relative;
      margin: 0;
      padding-top: var(--Tabs--sidebar-sidePadding);
      flex-grow: 1;
      border: none;
      flex-direction: column;
      border: 0;

      > li {
        display: flex;
        margin: var(--Tabs--sidebar-sideMargin);
        padding: 0;
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        border: 0;

        &:not(.is-disabled) > a:first-child {
          color: var(--Tabs-gray-color);
        }

        > a:first-child {
          padding: 0;
          border: 0;
          margin: 0;
          display: flex;
          flex-direction: column;
          align-items: center;

          .#{$ns}Icon {
            font-size: var(--Tabs--sidebar-iconSize);
            height: var(--Tabs--sidebar-iconSize);
            margin-bottom: var(--Tabs--sidebar-iconMargin);
          }
        }
        &.is-active > a:first-child,
        > a:first-child:hover,
        > a:first-child:focus {
          color: var(--Tabs--sidebar-iconColor);
        }
      }
    }

    > .#{$ns}Tabs-content {
      flex-grow: 1;
      border-bottom: none;

      > .#{$ns}Tabs-pane {
        height: 100%;
      }
    }
  }

  &--chrome {
    > .#{$ns}Tabs-linksWrapper {
      background: var(--Tabs--chrome-bg);
      border-bottom: none;
      overflow-x: hidden;

      > .#{$ns}Tabs-addable {
        margin-left: 0;
        padding: 0;
        padding-top: 10px;
      }
    }

    > .#{$ns}Tabs-linksWrapper > .#{$ns}Tabs-links {
      border-bottom: 0;
      padding: 0 px2rem(10px);
      padding-top: px2rem(8px);
      display: flex;
      width: 100%;

      > li {
        position: relative;
        margin-bottom: 0;
        white-space: nowrap;
        min-width: 0;
        max-width: px2rem(250px);
        padding: px2rem(7px) px2rem(20px) px2rem(6px);
        cursor: pointer;
        flex: 1;
        overflow: inherit;

        > a {
          /* 最少展示一个字 */
          min-width: var(--fontSizeBase);
        }

        > a:first-child {
          background: none;
          border: none;
          position: relative;
          z-index: 5;
          overflow: hidden;
          padding: 0;
          text-overflow: ellipsis;
        }

        &.is-active {
          > a:first-child,
          > a:first-child:hover,
          > a:first-child:focus {
            background: none;
            border: none;
          }
          &:after {
            display: none;
          }
        }

        &:after {
          content: '';
          width: 1px;
          height: calc(100% - var(--Tabs--chrome-radius-size) * 2);
          position: absolute;
          right: -2px;
          background: var(--Tabs--chrome-right-boder-color);
          top: var(--Tabs--chrome-radius-size);
        }

        &:hover {
          .chrome-tab-background {
            z-index: 3;
            display: block;
            background-color: var(--Tabs--chrome-onHover-bg);
          }
          .chrome-tab-background > svg {
            fill: var(--Tabs--chrome-onHover-bg);
          }
          &:after {
            display: none;
          }
        }

        &.is-active {
          .chrome-tab-background {
            display: block;
            background-color: var(--Tabs-onActive-bg);
          }
          .chrome-tab-background > svg {
            fill: var(--Tabs-onActive-bg);
          }
        }

        &.is-disabled {
          cursor: not-allowed;
        }
      }
    }
    .chrome-tab-background {
      display: none;
      position: absolute;
      z-index: 4;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
      border-radius: var(--Tabs--chrome-radius-size)
        var(--Tabs--chrome-radius-size) 0 0;
      > svg {
        width: var(--Tabs--chrome-radius-size);
        height: var(--Tabs--chrome-radius-size);
        bottom: 0;
        position: absolute;
      }
      > .chrome-tab-background--right {
        right: calc(var(--Tabs--chrome-radius-size) * -1);
      }
      > .chrome-tab-background--left {
        left: calc(var(--Tabs--chrome-radius-size) * -1);
      }
    }
  }

  &--simple {
    & > .#{$ns}Tabs-linksContainer-wrapper {
      border-bottom: none;

      .#{$ns}Tabs-addable {
        padding: 0;
      }

      & > .#{$ns}Tabs-linksContainer {
        > .#{$ns}Tabs-linksContainer-arrow {
          margin-bottom: 0;
        }

        > .#{$ns}Tabs-linksContainer-main > .#{$ns}Tabs-links {
          border: none;

          & > li {
            position: relative;
            border: none;
            padding: var(--Tabs--simple-split-size);

            &::after {
              content: '';
              position: absolute;
              top: 50%;
              right: 0;
              width: var(--Tabs--simple-split-width);
              height: var(--Tabs-add-icon-size);
              transform: translateY(-50%);
              background-color: var(--Tabs--simple-split-color);
            }

            & > .#{$ns}Tabs-link-close {
              padding-top: var(--Tabs--simple-split-width);
              cursor: pointer;
            }

            &:last-of-type::after {
              content: none;
            }

            &.is-active,
            &:not(.is-disabled):hover {
              > a:first-child,
              > a:first-child:hover,
              > a:first-child:focus {
                color: var(--Tabs--line-onHover-color);
                border: none;
              }
            }

            &:not(.is-disabled):hover .#{$ns}Tabs-link-close {
              fill: var(--primary);
            }

            & > a:first-child {
              padding: 0;

              &,
              &:hover,
              &:focus {
                border: none;
              }
            }
          }
        }
      }
    }

    > .#{$ns}Tabs-content {
      border: none;
    }
  }

  &--strong {
    & > .#{$ns}Tabs-linksContainer-wrapper {
      align-items: stretch;
      border-bottom: var(--Tabs-borderWidth) solid
        var(--Tabs--simple-split-color);

      .#{$ns}Tabs-addable {
        width: var(--Tabs--strong-add-size);
        margin-left: var(--Tabs--card-arrow-gap);
        padding: 0;
        margin-bottom: calc(var(--Tabs-borderWidth) * -1);
        align-items: center;
        justify-content: center;
        font-size: 0;
        border: var(--Tabs-borderWidth) solid var(--Tabs--simple-split-color);
        border-top-left-radius: var(--Tabs-borderRadius);
        border-top-right-radius: var(--Tabs-borderRadius);
        flex: none;

        > .#{$ns}Tabs-addable-icon {
          margin-right: 0;
        }

        &:hover {
          color: var(--Tabs--line-onHover-color);
        }
      }

      > .#{$ns}Tabs-linksContainer {
        margin-bottom: calc(var(--Tabs-borderWidth) * -1);

        &.#{$ns}Tabs-linksContainer--overflow
          > .#{$ns}Tabs-linksContainer-main
          > .#{$ns}Tabs-links
          > .#{$ns}Tabs-link {
          &:first-of-type {
            border-left-width: 0;
            border-top-left-radius: 0;
          }

          &:last-of-type {
            border-right-width: 0;
            border-top-right-radius: 0;
          }
        }

        .#{$ns}Tabs-linksContainer-arrow {
          width: var(--Tabs--strong-arrow-size);
          margin-bottom: 0;
          padding: 0;
          justify-content: center;
          border: var(--Tabs-borderWidth) solid var(--Tabs--simple-split-color);
          border-top-right-radius: var(--Tabs-borderRadius);
          box-sizing: border-box;

          &--left {
            padding-right: 0;
            border-right-width: 0;
            border-top-left-radius: var(--Tabs-borderRadius);
          }

          &--right {
            padding-left: 0;
            border-left-width: 0;
            border-top-right-radius: var(--Tabs-borderRadius);
          }
        }

        > .#{$ns}Tabs-linksContainer-main
          > .#{$ns}Tabs-links
          > .#{$ns}Tabs-link {
          margin-right: var(--Tabs--card-arrow-gap);
          padding: var(--Tabs--card-arrow-gap) var(--Tabs--card-add-gap);
          background: var(--Tabs-onActive-bg);
          border-top-left-radius: var(--Tabs-borderRadius);
          border-top-right-radius: var(--Tabs-borderRadius);
          border: var(--Tabs-borderWidth) solid var(--Tabs--simple-split-color);
          cursor: pointer;

          &.is-active {
            border-bottom-color: var(--Tabs-onActive-bg);
          }

          &.is-disabled {
            cursor: not-allowed;
          }

          &.is-active,
          &:not(.is-disabled):hover {
            > a:first-child,
            > a:first-child:hover,
            > a:first-child:focus {
              color: var(--Tabs--line-onHover-color);
            }
          }

          &:not(.is-disabled):hover .#{$ns}Tabs-link-close {
            fill: var(--primary);
          }

          &:last-of-type {
            margin-right: 0;
          }

          & > a:first-child {
            padding: 0;
            margin: 0;
            border: none;
          }
        }
      }
    }
  }

  &-toolbar {
    // display: inline-block;
    // float: right;
    // padding-top: var(--gap-xs);
    flex: 1 1 auto; // 撑开剩余空间
    margin-left: var(--gap-base);
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end; // 默认居右展示
  }
}