.rc-collapse-motion {
  transition: height 0.3s, opacity 0.3s;
}
.rc-collapse-content-hidden {
  display: none;
}
.rc-collapse {
  background-color: #f7f7f7;
  border-radius: 3px;
  border: 1px solid #d9d9d9;
}
.rc-collapse > .rc-collapse-item {
  border-top: 1px solid #d9d9d9;
}
.rc-collapse > .rc-collapse-item:first-child {
  border-top: none;
}
.rc-collapse > .rc-collapse-item > .rc-collapse-header {
  display: flex;
  align-items: center;
  line-height: 22px;
  padding: 10px 16px;
  color: #666;
  cursor: pointer;
}
.rc-collapse > .rc-collapse-item > .rc-collapse-header .arrow {
  display: inline-block;
  content: '\20';
  width: 0;
  height: 0;
  font-size: 0;
  line-height: 0;
  border-top: 3px solid transparent;
  border-bottom: 3px solid transparent;
  border-left: 4px solid #666;
  vertical-align: middle;
  margin-right: 8px;
}
.rc-collapse > .rc-collapse-item > .rc-collapse-header .rc-collapse-extra {
  margin: 0 16px 0 auto;
}
.rc-collapse > .rc-collapse-item .rc-collapse-collapsible-header {
  cursor: default;
}
.rc-collapse > .rc-collapse-item .rc-collapse-collapsible-header .rc-collapse-header-text {
  cursor: pointer;
}
.rc-collapse > .rc-collapse-item .rc-collapse-collapsible-header .rc-collapse-expand-icon {
  cursor: pointer;
}
.rc-collapse > .rc-collapse-item .rc-collapse-collapsible-icon {
  cursor: default;
}
.rc-collapse > .rc-collapse-item .rc-collapse-collapsible-icon .rc-collapse-expand-icon {
  cursor: pointer;
}
.rc-collapse > .rc-collapse-item-disabled > .rc-collapse-header {
  cursor: not-allowed;
  color: #999;
  background-color: #f3f3f3;
}
.rc-collapse-content {
  overflow: hidden;
  color: #666;
  padding: 0 16px;
  background-color: #fff;
}
.rc-collapse-content > .rc-collapse-content-box {
  margin-top: 16px;
  margin-bottom: 16px;
}
.rc-collapse-item:last-child > .rc-collapse-content {
  border-radius: 0 0 3px 3px;
}
.rc-collapse > .rc-collapse-item-active > .rc-collapse-header .arrow {
  position: relative;
  top: 2px;
  border-left: 3px solid transparent;
  border-right: 3px solid transparent;
  border-top: 4px solid #666;
  margin-right: 6px;
}