.yu-checkbox {
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB, Microsoft YaHei, SimSun, sans-serif;
  font-size: 14px;
  color: #606266;
  cursor: pointer;
  margin-right: 14px; }
  .yu-checkbox > span {
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none; }
  .yu-checkbox > .checkbox {
    transition: background-color 0.4s;
    margin-right: 4px;
    margin-bottom: -2px;
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 1px solid #DCDFE6;
    border-radius: 2px;
    background-color: #fff; }
    .yu-checkbox > .checkbox:hover {
      border: 1px solid #409EFF; }
    .yu-checkbox > .checkbox > input {
      display: none; }
  .yu-checkbox.checked > .checkbox {
    position: relative;
    border: 1px solid #409EFF;
    border-radius: 2px;
    background-color: #409EFF; }
    .yu-checkbox.checked > .checkbox:after {
      content: '\00a0';
      display: inline-block;
      border: 2px solid #fff;
      border-top-width: 0;
      border-right-width: 0;
      width: 8px;
      height: 4px;
      -webkit-transform: rotate(-50deg);
      position: absolute;
      top: 3px;
      left: 2px; }
  .yu-checkbox.checked.disabled > .checkbox {
    border: 1px solid #C0C4CC;
    background-color: #C0C4CC; }
    .yu-checkbox.checked.disabled > .checkbox + span {
      color: #C0C4CC; }
  .yu-checkbox.disabled {
    color: #C0C4CC; }
    .yu-checkbox.disabled > .checkbox:hover {
      border: 1px solid #DCDFE6; }
  .yu-checkbox.control {
    display: block;
    margin-bottom: 8px; }
    .yu-checkbox.control.part > .checkbox {
      position: relative;
      border: 1px solid #409EFF;
      border-radius: 2px;
      background-color: #409EFF; }
      .yu-checkbox.control.part > .checkbox + span {
        color: #409EFF; }
      .yu-checkbox.control.part > .checkbox:after {
        content: '\00a0';
        display: inline-block;
        border: 2px solid #fff;
        border-top-width: 0;
        border-right-width: 0;
        border-left-width: 0;
        width: 10px;
        height: 5px;
        -webkit-transform: rotate(180deg);
        position: absolute;
        top: 6px;
        left: 2px; }

.yu-checkbox-group {
  margin-bottom: 14px; }
  .yu-checkbox-group.vertical > .yu-checkbox {
    display: block;
    margin-bottom: 14px; }

.yu-tree {
  font-size: 0;
  padding-inline-start: 0;
  padding: 0;
  line-height: 26px; }
  .yu-tree > li {
    list-style: none; }
  .yu-tree .child-tree {
    transition: height 0.4s ease;
    height: 0;
    overflow: hidden;
    padding-inline-start: 0;
    padding: 0;
    display: block;
    margin-left: 16px; }
    .yu-tree .child-tree > li {
      list-style: none; }
    .yu-tree .child-tree.last {
      margin-left: 32px; }
  .yu-tree .yu-checkbox {
    display: block; }
  .yu-tree .leaf.active {
    display: inline-block;
    background-color: #e3f1ff; }
  .yu-tree .leaf > i {
    display: inline-block;
    vertical-align: top; }
  .yu-tree .leaf > .yu-checkbox {
    display: inline-block; }
  .yu-tree .leaf label {
    font-size: 14px;
    display: block;
    padding: 0 4px; }
  .yu-tree .leaf span {
    font-size: 14px; }
  .yu-tree .tree-title {
    display: flex; }