.empty {
  width: 100%;
  display: inline-block;
  padding-top: 30px;
  border-top: 1px solid #ddd;
  text-align: center;
  color: #595959;
}

.l-item {
  cursor: pointer;
  width: 160px;
  height: 40px;
  line-height: 38px;
  font-size: 16px;
  font-weight: 400;
  color: #363636;
  margin-bottom: 5px;
  box-sizing: border-box;
  padding-left: 12px;
  position: relative;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.l-item .icon {
  display: none;
  position: absolute;
  width: 14px;
  height: 14px;
  background: url('/images/help/down.png') no-repeat;
  background-size: 14px;
  right: 12px;
  top: 13px;
  color: #d9d9d9;
}

.l-item:hover {
  color: #0daeaf;
}

.active-l-item {
  color: #0daeaf;
  border-radius: 2px;
  border: 1px solid #d9d9d9;
  padding-right: 26px;
}

.active-l-item .icon {
  display: block;
}

.content-r {
  display: none;
}
.content-r.active {
  display: block;
}
.content-r .r-item-first {
  display: flex;
  flex-direction: row;
  margin-bottom: 24px;
}
.content-r .r-item-first .icon {
  width: 60px;
  height: 60px;
}
.content-r .r-item-first .icon img {
  width: 100%;
  height: 100%;
}

.content-r .r-item-first .r-item-first-content {
  flex: 1;
  margin-left: 16px;
}
.content-r .r-item-first .r-item-first-content h2 {
  height: 22px;
  font-size: 16px;
  font-weight: 600;
  color: #161616;
  line-height: 22px;
  text-align: left;
  margin-bottom: 8px;
  margin-top: 2px;
}

.content-r .r-item-first .r-item-first-content p {
  font-size: 14px;
  text-align: left;
  font-weight: 400;
  color: #363636;
  line-height: 22px;
}
.content-r .r-item {
  cursor: pointer;
  background: #ffffff;
  border-radius: 2px;
  border: 1px solid #d9d9d9;
  margin-bottom: 16px;
  position: relative;
}
.content-r .r-item.no-link .link {
  cursor: auto;
}

.content-r .r-item .link {
  padding: 20px 110px 20px 24px;
  display: block;
}

.content-r .r-item h3 {
  height: 22px;
  font-size: 16px;
  font-weight: 600;
  color: #161616;
  line-height: 22px;
  text-align: left;
  margin-bottom: 8px;
}

.content-r .r-item p {
  font-size: 14px;
  text-align: left;
  font-weight: 400;
  color: #363636;
  line-height: 22px;
}

.content-r .r-item .icon {
  position: absolute;
  width: 24px;
  height: 20px;
  background: url('/images/help/lujing.png') no-repeat;
  background-size: 24px 20px;
  top: 50%;
  right: 40px;
  margin-top: -8px;
  display: none;
}

.content-r .r-item:hover {
  background: #f6f7f9;
}
.content-r .r-item:hover .icon {
  display: block;
}
.content-r .searchHide {
  display: none;
}