.ty-collapse {
  box-sizing: border-box;
  border-radius: 4px;
  color: rgba(0, 0, 0, 0.65);
  font-size: 14px;
  font-family: Helvetica Neue For Number, -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, PingFang SC, Hiragino Sans GB, Microsoft YaHei, Helvetica Neue, Helvetica, Arial, sans-serif;
  border: 1px solid #d9d9d9;
  border-bottom: 0;
  background-color: #fafafa; }
  .ty-collapse-item {
    box-sizing: border-box;
    border-bottom: 1px solid #d9d9d9; }
    .ty-collapse-item:last-child {
      border-radius: 0 0 4px 4px; }
      .ty-collapse-item:last-child .ty-collapse-item__content {
        border-radius: 0 0 4px 4px; }
    .ty-collapse-item__header {
      display: flex;
      align-items: center;
      box-sizing: border-box;
      position: relative;
      padding: 12px 16px;
      color: rgba(0, 0, 0, 0.85);
      line-height: 22px;
      cursor: pointer;
      transition: all 300ms; }
      .ty-collapse-item__header:hover {
        background-color: #efefef; }
      .ty-collapse-item__header_disabled {
        color: rgba(0, 0, 0, 0.25);
        cursor: not-allowed; }
    .ty-collapse-item__arrow {
      margin-right: 15px;
      -webkit-transform: rotate(0);
              transform: rotate(0);
      text-align: center;
      font-size: 12px;
      color: inherit;
      transition: all 300ms; }
      .ty-collapse-item__arrow_active {
        -webkit-transform: rotate(90deg);
                transform: rotate(90deg); }
    .ty-collapse-item__title {
      flex: 1; }
    .ty-collapse-item__extra {
      color: inherit;
      font-size: 11px;
      margin-left: 15px; }
    .ty-collapse-item__content {
      overflow: hidden;
      color: rgba(0, 0, 0, 0.65);
      background-color: #fff;
      border-top: 1px solid #d9d9d9;
      padding: 0 16px;
      box-sizing: border-box;
      transition: height 300ms; }
      .ty-collapse-item__content:before, .ty-collapse-item__content:after {
        content: '';
        height: 16px;
        display: block; }
      .ty-collapse-item__content_collapse-exit-done {
        border-top: 0; }
  .ty-collapse_borderless {
    border: 0;
    background-color: #fff; }
  .ty-collapse_borderless > .ty-collapse-item:last-child {
    border-radius: 0; }
  .ty-collapse_borderless > .ty-collapse-item > .ty-collapse-item__content {
    border-radius: 0;
    border-top: 0;
    padding-top: 4px; }
