.at-tree.at-tree-directory {
  position: relative;
  .at-tree-child-tree {
    > li span.at-tree-switcher {
      position: relative;
      z-index: 1;
    }
    > li span.at-tree-switcher.at-tree-switcher-noop {
      pointer-events: none;
    }
    > li span.at-tree-checkbox {
      position: relative;
      z-index: 1;
    }
    > li span.at-tree-node-content-wrapper {
      -webkit-user-select: none;
      -moz-user-select: none;
      -ms-user-select: none;
      user-select: none;
      border-radius: 0;
    }
    > li span.at-tree-node-content-wrapper:hover {
      background: 0 0;
    }
    > li span.at-tree-node-content-wrapper:hover:before {
      background: $primary-100;
    }
    > li span.at-tree-node-content-wrapper.at-tree-node-selected {
      color: #fff;
      background: 0 0;
    }
    > li span.at-tree-node-content-wrapper:before {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      height: 24px;
      transition: all 0.3s;
    }
    > li span.at-tree-node-content-wrapper > span {
      position: relative;
      z-index: 1;
    }
    > li.at-tree-treenode-selected > span.at-tree-switcher {
      color: #fff;
    }
    > li.at-tree-treenode-selected > span.at-tree-checkbox .at-tree-checkbox-inner {
      border-color: $brand-color;
    }
    > li.at-tree-treenode-selected > span.at-tree-checkbox.at-tree-checkbox-checked:after {
      border-color: #fff;
    }
    > li.at-tree-treenode-selected > span.at-tree-checkbox.at-tree-checkbox-checked .at-tree-checkbox-inner {
      background: #fff;
    }
    > li.at-tree-treenode-selected > span.at-tree-checkbox.at-tree-checkbox-checked .at-tree-checkbox-inner:after {
      border-color: $brand-color;
    }
    > li.at-tree-treenode-selected > span.at-tree-node-content-wrapper:before {
      background: $brand-color;
    }
  }
  > li span.at-tree-switcher {
    position: relative;
    z-index: 1;
  }
  > li span.at-tree-switcher.at-tree-switcher-noop {
    pointer-events: none;
  }
  > li span.at-tree-checkbox {
    position: relative;
    z-index: 1;
  }
  > li span.at-tree-node-content-wrapper {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    border-radius: 0;
  }
  > li span.at-tree-node-content-wrapper:hover {
    background: 0 0;
  }
  > li span.at-tree-node-content-wrapper:hover:before {
    background: $primary-100;
  }
  > li span.at-tree-node-content-wrapper.at-tree-node-selected {
    color: #fff;
    background: 0 0;
  }
  > li span.at-tree-node-content-wrapper:before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    height: 24px;
    transition: all 0.3s;
  }
  > li span.at-tree-node-content-wrapper > span {
    position: relative;
    z-index: 1;
  }
  > li.at-tree-treenode-selected > span.at-tree-switcher {
    color: #fff;
  }
  > li.at-tree-treenode-selected > span.at-tree-checkbox .at-tree-checkbox-inner {
    border-color: $brand-color;
  }
  > li.at-tree-treenode-selected > span.at-tree-checkbox.at-tree-checkbox-checked:after {
    border-color: #fff;
  }
  > li.at-tree-treenode-selected > span.at-tree-checkbox.at-tree-checkbox-checked .at-tree-checkbox-inner {
    background: #fff;
  }
  > li.at-tree-treenode-selected > span.at-tree-checkbox.at-tree-checkbox-checked .at-tree-checkbox-inner:after {
    border-color: $brand-color;
  }
  > li.at-tree-treenode-selected > span.at-tree-node-content-wrapper:before {
    background: $brand-color;
  }
}

.at-tree-checkbox {
  font-fmaily: $font-family;
  font-size: 14px;
  font-variat: tabular-nums;
  color: $text-color;;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  list-style: none;
  white-space: nowrap;
  cursor: pointer;
  outline: 0;
  display: inline-block;
  line-height: 1;
  position: relative;
  vertical-align: middle;
  top: -0.09em;
}

.at-tree-checkbox-input:focus + .at-tree-checkbox-inner, .at-tree-checkbox-wrapper:hover .at-tree-checkbox-inner, .at-tree-checkbox:hover .at-tree-checkbox-inner {
  border-color: $brand-color;
}

.at-tree-checkbox-checked:after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 2px;
  border: 1px solid $brand-color;
  content: "";
  -webkit-animation: .36s ease-in-out both atCheckboxEffect;
  animation: .36s ease-in-out both atCheckboxEffect;
  visibility: hidden;
}

.at-tree-checkbox-wrapper:hover .at-tree-checkbox:after, .at-tree-checkbox:hover:after {
  visibility: visible;
}

.at-tree-checkbox-inner {
  position: relative;
  top: 0;
  left: 0;
  display: block;
  width: 16px;
  height: 16px;
  border: 1px solid #d9d9d9;
  border-radius: 2px;
  background-color: #fff;
  transition: all .3s;
  border-collapse: separate;
  &:after {
    -webkit-transform: rotate(45deg) scale(0);
    transform: rotate(45deg) scale(0);
    position: absolute;
    left: 4.57142857px;
    top: 1.14285714px;
    display: table;
    width: 5.71428571px;
    height: 9.14285714px;
    border: 2px solid #fff;
    border-top: 0;
    border-left: 0;
    content: ' ';
    transition: all 0.1s cubic-bezier(0.71, -0.46, 0.88, 0.6), opacity 0.1s;
    opacity: 0;
  }
}

.at-tree-checkbox-input {
  position: absolute;
  left: 0;
  z-index: 1;
  cursor: pointer;
  opacity: 0;
  top: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100%;
}

.at-tree-checkbox-checked .at-tree-checkbox-inner {
  &:after {
    -webkit-transform: rotate(45deg) scale(1);
    transform: rotate(45deg) scale(1);
    position: absolute;
    display: table;
    border: 2px solid #fff;
    border-top: 0;
    border-left: 0;
    content: ' ';
    transition: all 0.2s cubic-bezier(0.12, 0.4, 0.29, 1.46) 0.1s;
    opacity: 1;
  }
  background-color: $brand-color;
  border-color: $brand-color;
}

.at-tree-checkbox-disabled {
  cursor: not-allowed;
  &.at-tree-checkbox-checked .at-tree-checkbox-inner:after {
    -webkit-animation-name: none;
    animation-name: none;
    border-color: rgba(0, 0, 0, 0.25);
  }
  .at-tree-checkbox-input {
    cursor: not-allowed;
  }
  .at-tree-checkbox-inner {
    border-color: #d9d9d9 !important;
    background-color: #f5f5f5;
    &:after {
      -webkit-animation-name: none;
      animation-name: none;
      border-color: #f5f5f5;
      border-collapse: separate;
    }
  }
  + span {
    color: rgba(0, 0, 0, 0.25);
    cursor: not-allowed;
  }
}

.at-tree-checkbox-wrapper {
  font-family: $font-family;
  font-size: 14px;
  font-variat: tabular-nums;
  line-height: 1.5;
  color: $text-color;;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  list-style: none;
  line-height: unset;
  cursor: pointer;
  display: inline-block;
  + .at-tree-checkbox-wrapper {
    margin-left: 8px;
  }
}

.at-tree-checkbox + span, .at-tree-checkbox-wrapper + span {
  padding-left: 8px;
  padding-right: 8px;
}

.at-tree-checkbox-group {
  font-family: "Monospaced Number", "Chinese Quote", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  font-variat: tabular-nums;
  line-height: 1.5;
  color: $text-color;;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  list-style: none;
  display: inline-block;
}

.at-tree-checkbox-group-item {
  display: inline-block;
  margin-right: 8px;
  &:last-child {
    margin-right: 0;
  }
  + .at-tree-checkbox-group-item {
    margin-left: 0;
  }
}

.at-tree-checkbox-indeterminate {
  .at-tree-checkbox-inner {
    background-color: #fff;
    border-color: #d9d9d9;
    &:after {
      content: ' ';
      -webkit-transform: translate(-50%, -50%) scale(1);
      transform: translate(-50%, -50%) scale(1);
      border: 0;
      left: 50%;
      top: 50%;
      width: 8px;
      height: 8px;
      background-color: $brand-color;
      opacity: 1;
    }
  }
  &.at-tree-checkbox-disabled .at-tree-checkbox-inner:after {
    border-color: rgba(0, 0, 0, 0.25);
    background-color: rgba(0, 0, 0, 0.25);
  }
}

.at-tree {
  font-family: "Monospaced Number", "Chinese Quote", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  font-variat: tabular-nums;
  line-height: 1.5;
  color: $text-color;;
  box-sizing: border-box;
  list-style: none;
  margin: 0;
  padding: 0;
  ol, ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }
  li {
    padding: 4px 0;
    margin: 0;
    list-style: none;
    white-space: nowrap;
    outline: 0;
    span {
      &[draggable=true], &[draggable] {
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
        border-top: 2px solid transparent;
        border-bottom: 2px solid transparent;
        -khtml-user-drag: element;
        -webkit-user-drag: element;
        line-height: 20px;
      }
    }
    &.drag-over > span[draggable] {
      background-color: $brand-color;
      color: #fff;
      opacity: 0.8;
    }
    &.drag-over-gap-top > span[draggable] {
      border-top-color: $brand-color;
    }
    &.drag-over-gap-bottom > span[draggable] {
      border-bottom-color: $brand-color;
    }
    &.filter-node > span {
      color: $red-800 !important;
      font-weight: 500 !important;
    }
    &.at-tree-treenode-loading span.at-tree-switcher {
      &.at-tree-switcher_close .at-tree-switcher-loading-icon, &.at-tree-switcher_open .at-tree-switcher-loading-icon {
        display: inline-block;
        position: absolute;
        left: 0;
        width: 24px;
        height: 24px;
        color: $brand-color;
        -webkit-transform: none;
        transform: none;
        font-size: 14px;
      }
      &.at-tree-switcher_close .at-tree-switcher-loading-icon svg, &.at-tree-switcher_open .at-tree-switcher-loading-icon svg {
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        left: 0;
        margin: auto;
      }
    }
  }
}

:root .at-tree li.at-tree-treenode-loading span.at-tree-switcher {
  &.at-tree-switcher_close:after, &.at-tree-switcher_open:after {
    opacity: 0;
  }
}

.at-tree li {
  ul {
    margin: 0;
    padding: 0 0 0 18px;
  }
  .at-tree-node-content-wrapper {
    display: inline-block;
    padding: 0 5px;
    border-radius: 2px;
    margin: 0;
    cursor: pointer;
    text-decoration: none;
    vertical-align: top;
    color: $text-color;;
    transition: all .3s;
    height: 24px;
    line-height: 24px;
    &:hover {
      background-color: $primary-500;
    }
    &.at-tree-node-selected {
      background-color: $primary-100;
    }
  }
  span {
    &.at-tree-checkbox {
      margin: 4px 4px 0 2px;
    }
    &.at-tree-iconEle {
      margin: 0;
      width: 24px;
      height: 24px;
      line-height: 24px;
      display: inline-block;
      vertical-align: top;
      border: 0;
      cursor: pointer;
      outline: 0;
      text-align: center;
    }
    &.at-tree-switcher {
      margin: 0;
      width: 24px;
      height: 24px;
      line-height: 24px;
      display: inline-block;
      vertical-align: top;
      border: 0;
      cursor: pointer;
      outline: 0;
      text-align: center;
      position: relative;
      &.at-tree-switcher-noop {
        cursor: default;
      }
      &.at-tree-switcher_open {
        .at-select-switcher-icon, .at-tree-switcher-icon {
          font-size: 12px;
          font-size: 7px \9
        ;
          -webkit-transform: scale(0.58333) rotate(0);
          transform: scale(0.58333) rotate(0);
          display: inline-block;
          font-weight: 700;
        }
      }
    }
  }

}

:root .at-tree li span.at-tree-switcher.at-tree-switcher_open {
  .at-select-switcher-icon, .at-tree-switcher-icon {
    font-size: 12px;
  }
}

.at-tree li span.at-tree-switcher {
  &.at-tree-switcher_open {
    .at-select-switcher-icon svg, .at-tree-switcher-icon svg {
      transition: -webkit-transform .3s;
      transition: transform .3s;
      transition: transform 0.3s, -webkit-transform 0.3s;
    }
  }
  &.at-tree-switcher_close {
    .at-select-switcher-icon, .at-tree-switcher-icon {
      font-size: 12px;
      font-size: 7px \9
    ;
      -webkit-transform: scale(0.58333) rotate(0);
      transform: scale(0.58333) rotate(0);
      display: inline-block;
      font-weight: 700;
    }
  }
}

:root .at-tree li span.at-tree-switcher.at-tree-switcher_close {
  .at-select-switcher-icon, .at-tree-switcher-icon {
    font-size: 12px;
  }
}

.at-tree {
  li {
    span.at-tree-switcher.at-tree-switcher_close {
      .at-select-switcher-icon svg {
        transition: -webkit-transform .3s;
        transition: transform .3s;
        transition: transform 0.3s, -webkit-transform 0.3s;
      }
      .at-tree-switcher-icon svg {
        transition: -webkit-transform .3s;
        transition: transform .3s;
        transition: transform 0.3s, -webkit-transform 0.3s;
        -webkit-transform: rotate(-90deg);
        transform: rotate(-90deg);
      }
    }
    &:last-child > span {
      &.at-tree-iconEle:before, &.at-tree-switcher:before {
        display: none;
      }
    }
  }
  > li {
    &:first-child {
      padding-top: 7px;
    }
    &:last-child {
      padding-bottom: 7px;
    }
  }
}

.at-tree-child-tree {
  display: none;
}

.at-tree-child-tree-open {
  display: block;
}

li.at-tree-treenode-disabled > {
  .at-tree-node-content-wrapper {
    color: rgba(0, 0, 0, 0.25);
    cursor: not-allowed;
    span {
      color: rgba(0, 0, 0, 0.25);
      cursor: not-allowed;
    }
  }
  span:not(.at-tree-switcher) {
    color: rgba(0, 0, 0, 0.25);
    cursor: not-allowed;
  }
  .at-tree-node-content-wrapper:hover {
    background: 0 0;
  }
}

.at-tree-icon__close, .at-tree-icon__open {
  margin-right: 2px;
  vertical-align: top;
}

.at-tree.at-tree-show-line li {
  position: relative;
  span.at-tree-switcher {
    background: #fff;
    color: rgba(0, 0, 0, 0.45);
    &.at-tree-switcher-noop {
      .at-select-switcher-icon, .at-tree-switcher-icon {
        font-size: 12px;
        font-size: 12px \9
      ;
        -webkit-transform: scale(1) rotate(0);
        transform: scale(1) rotate(0);
        display: inline-block;
        font-weight: 400;
      }
    }
  }
}

:root .at-tree.at-tree-show-line li span.at-tree-switcher.at-tree-switcher-noop {
  .at-select-switcher-icon, .at-tree-switcher-icon {
    font-size: 12px;
  }
}

.at-tree.at-tree-show-line li span.at-tree-switcher {
  &.at-tree-switcher-noop {
    .at-select-switcher-icon svg, .at-tree-switcher-icon svg {
      transition: -webkit-transform .3s;
      transition: transform .3s;
      transition: transform 0.3s, -webkit-transform 0.3s;
    }
  }
  &.at-tree-switcher_open {
    .at-select-switcher-icon, .at-tree-switcher-icon {
      font-size: 12px;
      font-size: 12px \9
    ;
      -webkit-transform: scale(1) rotate(0);
      transform: scale(1) rotate(0);
      display: inline-block;
      font-weight: 400;
    }
  }
}

:root .at-tree.at-tree-show-line li span.at-tree-switcher.at-tree-switcher_open {
  .at-select-switcher-icon, .at-tree-switcher-icon {
    font-size: 12px;
  }
}

.at-tree.at-tree-show-line li span.at-tree-switcher {
  &.at-tree-switcher_open {
    .at-select-switcher-icon svg, .at-tree-switcher-icon svg {
      transition: -webkit-transform .3s;
      transition: transform .3s;
      transition: transform 0.3s, -webkit-transform 0.3s;
    }
  }
  &.at-tree-switcher_close {
    .at-select-switcher-icon, .at-tree-switcher-icon {
      font-size: 12px;
      font-size: 12px \9
    ;
      -webkit-transform: scale(1) rotate(0);
      transform: scale(1) rotate(0);
      display: inline-block;
      font-weight: 400;
    }
  }
}

:root .at-tree.at-tree-show-line li span.at-tree-switcher.at-tree-switcher_close {
  .at-select-switcher-icon, .at-tree-switcher-icon {
    font-size: 12px;
  }
}

.at-tree {

  &.at-tree-show-line li {
    span.at-tree-switcher.at-tree-switcher_close {
      .at-select-switcher-icon svg, .at-tree-switcher-icon svg {
        transition: -webkit-transform .3s;
        transition: transform .3s;
        transition: transform 0.3s, -webkit-transform 0.3s;
      }
    }
    &:not(:last-child):before {
      content: ' ';
      width: 1px;
      border-left: 1px solid #d9d9d9;
      height: 100%;
      position: absolute;
      left: 12px;
      margin: 22px 0;
    }
  }
  &.at-tree-icon-hide .at-tree-treenode-loading .at-tree-iconEle {
    display: none;
  }

  &.at-tree-show-line {
    .at-tree-child-tree {
      > at-tree-node:not(:last-child) > li:before {
        content: ' ';
        width: 1px;
        border-left: 1px solid #d9d9d9;
        height: 100%;
        position: absolute;
        left: 12px;
        margin: 22px 0;
      }
      > at-tree-node:last-child > li:before {
        content: ' ';
        width: 1px;
        border-left: 0 solid #d9d9d9;
        height: 100%;
        position: absolute;
        left: 12px;
        margin: 22px 0;
      }
    }
    > at-tree-node:not(:last-child) > li:before {
      content: ' ';
      width: 1px;
      border-left: 1px solid #d9d9d9;
      height: 100%;
      position: absolute;
      left: 12px;
      margin: 22px 0;
    }
  }
  .font-highlight {
    color: $red-800;
  }

}

.at-select-tree-checkbox {
  font-family: "Monospaced Number", "Chinese Quote", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  font-variat: tabular-nums;
  color: $text-color;;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  list-style: none;
  white-space: nowrap;
  cursor: pointer;
  outline: 0;
  display: inline-block;
  line-height: 1;
  position: relative;
  vertical-align: middle;
  top: -0.09em;
}

.at-select-tree-checkbox-input:focus + .at-select-tree-checkbox-inner, .at-select-tree-checkbox-wrapper:hover .at-select-tree-checkbox-inner, .at-select-tree-checkbox:hover .at-select-tree-checkbox-inner {
  border-color: $brand-color;
}

.at-select-tree-checkbox-checked:after {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 2px;
  border: 1px solid $brand-color;
  content: "";
  -webkit-animation: .36s ease-in-out both atCheckboxEffect;
  animation: .36s ease-in-out both atCheckboxEffect;
  visibility: hidden;
}

.at-select-tree-checkbox-wrapper:hover .at-select-tree-checkbox:after, .at-select-tree-checkbox:hover:after {
  visibility: visible;
}

.at-select-tree-checkbox-inner {
  position: relative;
  top: 0;
  left: 0;
  display: block;
  width: 16px;
  height: 16px;
  border: 1px solid #d9d9d9;
  border-radius: 2px;
  background-color: #fff;
  transition: all .3s;
  border-collapse: separate;
  &:after {
    -webkit-transform: rotate(45deg) scale(0);
    transform: rotate(45deg) scale(0);
    position: absolute;
    left: 4.57142857px;
    top: 1.14285714px;
    display: table;
    width: 5.71428571px;
    height: 9.14285714px;
    border: 2px solid #fff;
    border-top: 0;
    border-left: 0;
    content: ' ';
    transition: all 0.1s cubic-bezier(0.71, -0.46, 0.88, 0.6), opacity 0.1s;
    opacity: 0;
  }
}

.at-select-tree-checkbox-input {
  position: absolute;
  left: 0;
  z-index: 1;
  cursor: pointer;
  opacity: 0;
  top: 0;
  bottom: 0;
  right: 0;
  width: 100%;
  height: 100%;
}

.at-select-tree-checkbox-checked .at-select-tree-checkbox-inner {
  &:after {
    -webkit-transform: rotate(45deg) scale(1);
    transform: rotate(45deg) scale(1);
    position: absolute;
    display: table;
    border: 2px solid #fff;
    border-top: 0;
    border-left: 0;
    content: ' ';
    transition: all 0.2s cubic-bezier(0.12, 0.4, 0.29, 1.46) 0.1s;
    opacity: 1;
  }
  background-color: $brand-color;
  border-color: $brand-color;
}

.at-select-tree-checkbox-disabled {
  cursor: not-allowed;
  &.at-select-tree-checkbox-checked .at-select-tree-checkbox-inner:after {
    -webkit-animation-name: none;
    animation-name: none;
    border-color: rgba(0, 0, 0, 0.25);
  }
  .at-select-tree-checkbox-input {
    cursor: not-allowed;
  }
  .at-select-tree-checkbox-inner {
    border-color: #d9d9d9 !important;
    background-color: #f5f5f5;
    &:after {
      -webkit-animation-name: none;
      animation-name: none;
      border-color: #f5f5f5;
      border-collapse: separate;
    }
  }
  + span {
    color: rgba(0, 0, 0, 0.25);
    cursor: not-allowed;
  }
}

.at-select-tree-checkbox-wrapper {
  font-family: "Monospaced Number", "Chinese Quote", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  font-variat: tabular-nums;
  line-height: 1.5;
  color: $text-color;;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  list-style: none;
  line-height: unset;
  cursor: pointer;
  display: inline-block;
  + .at-select-tree-checkbox-wrapper {
    margin-left: 8px;
  }
}

.at-select-tree-checkbox + span, .at-select-tree-checkbox-wrapper + span {
  padding-left: 8px;
  padding-right: 8px;
}

.at-select-tree-checkbox-group {
  font-family: "Monospaced Number", "Chinese Quote", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  font-variat: tabular-nums;
  line-height: 1.5;
  color: $text-color;;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  list-style: none;
  display: inline-block;
}

.at-select-tree-checkbox-group-item {
  display: inline-block;
  margin-right: 8px;
  &:last-child {
    margin-right: 0;
  }
  + .at-select-tree-checkbox-group-item {
    margin-left: 0;
  }
}

.at-select-tree-checkbox-indeterminate {
  .at-select-tree-checkbox-inner {
    background-color: #fff;
    border-color: #d9d9d9;
    &:after {
      content: ' ';
      -webkit-transform: translate(-50%, -50%) scale(1);
      transform: translate(-50%, -50%) scale(1);
      border: 0;
      left: 50%;
      top: 50%;
      width: 8px;
      height: 8px;
      background-color: $brand-color;
      opacity: 1;
    }
  }
  &.at-select-tree-checkbox-disabled .at-select-tree-checkbox-inner:after {
    border-color: rgba(0, 0, 0, 0.25);
    background-color: rgba(0, 0, 0, 0.25);
  }
}

.at-select-tree {
  font-family: "Monospaced Number", "Chinese Quote", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  font-variat: tabular-nums;
  line-height: 1.5;
  color: $text-color;;
  box-sizing: border-box;
  padding: 0 4px;
  list-style: none;
  margin: -4px 0 0;
  li {
    padding: 0;
    margin: 8px 0;
    list-style: none;
    white-space: nowrap;
    outline: 0;
    &.filter-node > span {
      font-weight: 500;
    }
    ul {
      margin: 0;
      padding: 0 0 0 18px;
    }
    .at-select-tree-node-content-wrapper {
      display: inline-block;
      padding: 3px 5px;
      border-radius: 2px;
      margin: 0;
      cursor: pointer;
      text-decoration: none;
      color: $text-color;;
      transition: all .3s;
      width: calc(100% - 24px);
      &:hover {
        background-color: $primary-100;
      }
      &.at-select-tree-node-selected {
        background-color: $blue-300;
      }
    }
    span {
      &.at-select-tree-checkbox {
        margin: 0 4px 0 0;
        + .at-select-tree-node-content-wrapper {
          width: calc(100% - 46px);
        }
      }
      &.at-select-tree-iconEle, &.at-select-tree-switcher {
        margin: 0;
        width: 24px;
        height: 24px;
        line-height: 22px;
        display: inline-block;
        vertical-align: middle;
        border: 0;
        cursor: pointer;
        outline: 0;
        text-align: center;
      }
      &.at-select-icon_loading .at-select-switcher-loading-icon {
        display: inline-block;
        position: absolute;
        left: 0;
        color: $brand-color;
        -webkit-transform: none;
        transform: none;
        font-size: 14px;
        svg {
          position: absolute;
          top: 0;
          right: 0;
          bottom: 0;
          left: 0;
          margin: auto;
        }
      }
      &.at-select-tree-switcher {
        position: relative;
        &.at-select-tree-switcher-noop {
          cursor: auto;
        }
        &.at-select-tree-switcher_open {
          .at-select-switcher-icon, .at-tree-switcher-icon {
            font-size: 12px;
            font-size: 7px \9
          ;
            -webkit-transform: scale(0.58333) rotate(0);
            transform: scale(0.58333) rotate(0);
            display: inline-block;
            font-weight: 700;
          }
        }
      }
    }
  }
}

:root .at-select-tree li span.at-select-tree-switcher.at-select-tree-switcher_open {
  .at-select-switcher-icon, .at-tree-switcher-icon {
    font-size: 12px;
  }
}

.at-select-tree li span.at-select-tree-switcher {
  &.at-select-tree-switcher_open {
    .at-select-switcher-icon svg, .at-tree-switcher-icon svg {
      transition: -webkit-transform .3s;
      transition: transform .3s;
      transition: transform 0.3s, -webkit-transform 0.3s;
    }
  }
  &.at-select-tree-switcher_close {
    .at-select-switcher-icon, .at-tree-switcher-icon {
      font-size: 12px;
      font-size: 7px \9
    ;
      -webkit-transform: scale(0.58333) rotate(0);
      transform: scale(0.58333) rotate(0);
      display: inline-block;
      font-weight: 700;
    }
  }
}

:root .at-select-tree li span.at-select-tree-switcher.at-select-tree-switcher_close {
  .at-select-switcher-icon, .at-tree-switcher-icon {
    font-size: 12px;
  }
}

.at-select-tree {
  li span.at-select-tree-switcher {
    &.at-select-tree-switcher_close {
      .at-select-switcher-icon svg, .at-tree-switcher-icon svg {
        transition: -webkit-transform .3s;
        transition: transform .3s;
        transition: transform 0.3s, -webkit-transform 0.3s;
      }
      .at-select-switcher-icon svg {
        -webkit-transform: rotate(-90deg);
        transform: rotate(-90deg);
      }
      .at-select-switcher-loading-icon {
        display: inline-block;
        position: absolute;
        left: 0;
        width: 24px;
        height: 24px;
        color: $brand-color;
        -webkit-transform: none;
        transform: none;
        font-size: 14px;
      }
    }
    &.at-select-tree-switcher_open .at-select-switcher-loading-icon {
      display: inline-block;
      position: absolute;
      left: 0;
      width: 24px;
      height: 24px;
      color: $brand-color;
      -webkit-transform: none;
      transform: none;
      font-size: 14px;
    }
    &.at-select-tree-switcher_close .at-select-switcher-loading-icon svg, &.at-select-tree-switcher_open .at-select-switcher-loading-icon svg {
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
      margin: auto;
    }
  }
  .at-select-tree-treenode-loading .at-select-tree-iconEle {
    display: none;
  }
}

.at-select-tree-child-tree {
  display: none;
}

.at-select-tree-child-tree-open {
  display: block;
}

li.at-select-tree-treenode-disabled > {
  .at-select-tree-node-content-wrapper {
    color: rgba(0, 0, 0, 0.25);
    cursor: not-allowed;
    span {
      color: rgba(0, 0, 0, 0.25);
      cursor: not-allowed;
    }
  }
  span:not(.at-select-tree-switcher) {
    color: rgba(0, 0, 0, 0.25);
    cursor: not-allowed;
  }
  .at-select-tree-node-content-wrapper:hover {
    background: 0 0;
  }
}

.at-select-tree-icon__close, .at-select-tree-icon__open {
  margin-right: 2px;
  vertical-align: top;
}

.at-select-tree-dropdown {
  font-family: "Monospaced Number", "Chinese Quote", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 14px;
  font-variat: tabular-nums;
  line-height: 1.5;
  color: $text-color;;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  list-style: none;
  .at-select-dropdown-search {
    display: block;
    padding: 4px;
    .at-select-search__field__wrap {
      width: 100%;
    }
    .at-select-search__field {
      padding: 4px 7px;
      width: 100%;
      box-sizing: border-box;
      border: 1px solid #d9d9d9;
      border-radius: 4px;
      outline: 0;
    }
    &.at-select-search--hide {
      display: none;
    }
  }
  .at-select-not-found {
    cursor: not-allowed;
    color: rgba(0, 0, 0, 0.25);
    padding: 7px 16px;
    display: block;
  }
}