.app-collapse {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  color: rgba(0, 0, 0, 0.65);
  font-size: 14px;
  font-variant: tabular-nums;
  line-height: 1.5;
  list-style: none;
  font-feature-settings: "tnum";
  background-color: #fafafa;
  border: 1px solid #d9d9d9;
  border-bottom: 0;
  border-radius: 4px;
}
