* {
  padding: 0;
  margin: 0;
}

body {
  background-color: #f5f5f5;
}

.lectureroom-warper .wh_1200 {
  max-width: 1200px;
  margin: 0 auto;
}

.lectureroom-warper .banner {
  width: 100%;
}

.lectureroom-warper .banner img {
  width: 100%;
}

.lectureroom-warper .menu-box {
  background-color: #ffffff;
  height: 100px;
  width: 100%;
}

.lectureroom-warper .menu-box .item-menu {
  display: flex;
}

.lectureroom-warper .menu-box .item-menu .item-list-menu {
  flex: 1;
  cursor: pointer;
}

.lectureroom-warper .menu-box .item-menu .item-list-menu .item-content {
  display: flex;
}

.lectureroom-warper .menu-box .item-menu .item-list-menu .item-content img {
  width: 64px;
  height: 64px;
  margin-right: 10px;
  margin-top: 20px;
}

.lectureroom-warper .menu-box .item-menu .item-list-menu .item-content .title-box {
  flex: 1;
}

.lectureroom-warper .menu-box .item-menu .item-list-menu .item-content .title-box .title {
  font-weight: bold;
  font-size: 18px;
  font-stretch: normal;
  letter-spacing: 0px;
  color: #333333;
  margin-top: 25px;
}

.lectureroom-warper .menu-box .item-menu .item-list-menu .item-content .title-box .tips {
  font-size: 14px;
  font-weight: normal;
  font-stretch: normal;
  letter-spacing: 0px;
  color: #333333;
  margin-top: 5px;
}

.lectureroom-warper .lectureroomlist {
  margin-top: 30px;
}

.lectureroom-warper .lectureroomlist .top-nav {
  display: flex;
}

.lectureroom-warper .lectureroomlist .top-nav .title {
  margin-top: 6px;
  font-size: 24px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 24px;
  letter-spacing: 0px;
  color: #333333;
  height: 24px;
  border-left: 4px solid #2e76da;
  padding-left: 10px;
}

.lectureroom-warper .lectureroomlist .top-nav .item-nav-box {
  flex: 1;
  text-align: right;
}

.lectureroom-warper .lectureroomlist .top-nav .item-nav-box .item-list-nav {
  font-size: 14px;
  font-weight: normal;
  font-stretch: normal;
  letter-spacing: 0px;
  color: #333333;
  text-decoration: none;
  display: inline-block;
  padding: 0px 20px;
  height: 36px;
  line-height: 36px;
  border-radius: 20px;
  background-color: #ffffff;
  margin-right: 10px;
}

.lectureroom-warper .lectureroomlist .top-nav .item-nav-box .active {
  background-color: #2e76da;
  color: #ffffff;
}

.lectureroom-warper .lectureroomlist .top-nav .more {
  font-size: 14px;
  font-weight: normal;
  font-stretch: normal;
  letter-spacing: 0px;
  color: #999999;
  height: 36px;
  line-height: 36px;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  width: 100%;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content .item-lectureroomlist {
  height: 280px;
  width: 285px;
  position: relative;
  box-sizing: border-box;
  background-color: #fff;
  display: inline-block;
  margin-right: 20px;
  margin-bottom: 20px;
  cursor: pointer;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content .item-lectureroomlist:hover {
  box-shadow: 2px 5px 14px #afaeae;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content .item-lectureroomlist:nth-child(4n) {
  margin-right: 0;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content .item-lectureroomlist .img-box {
  width: 285px;
  height: 160px;
  background-color: #ffffff;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content .item-lectureroomlist .img-box img {
  width: 285px;
  height: 160px;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content .item-lectureroomlist .title-content .title {
  font-size: 14px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 20px;
  letter-spacing: 0px;
  color: #333333;
  padding: 0px 14px;
  padding-top: 20px;
  text-overflow: -o-ellipsis-lastline;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content .item-lectureroomlist .title-content .bottom-main {
  position: absolute;
  bottom: 10px;
  display: flex;
  line-height: 28px;
  height: 28px;
  font-size: 14px;
  width: 258px;
  left: 10px;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content .item-lectureroomlist .title-content .bottom-main .hot {
  width: 30px;
  height: 28px;
  vertical-align: middle;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content .item-lectureroomlist .title-content .bottom-main .name {
  flex: 1;
  margin: 0 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content .item-lectureroomlist .title-content .bottom-main .eye {
  width: 23px;
  vertical-align: middle;
  height: 14px;
  margin-top: 8px;
}

.lectureroom-warper .lectureroomlist .lectureroomlist_content .item-lectureroomlist .title-content .bottom-main .num {
  font-size: 14px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 20px;
  letter-spacing: 0px;
  margin-top: 5px;
  margin-left: 5px;
  color: #333333;
}

.lectureroom-warper .workshop {
  margin-top: 20px;
}

.lectureroom-warper .workshop .top-nav {
  display: flex;
}

.lectureroom-warper .workshop .top-nav .title {
  margin-top: 6px;
  font-size: 24px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 24px;
  letter-spacing: 0px;
  color: #333333;
  height: 24px;
  border-left: 4px solid #2e76da;
  padding-left: 10px;
}

.lectureroom-warper .workshop .work-box {
  margin-top: 20px;
  display: flex;
}

.lectureroom-warper .workshop .work-box .item-img {
  flex: 1;
  margin-right: 20px;
  cursor: pointer;
}

.lectureroom-warper .workshop .work-box .item-img:nth-child(2) {
  margin-right: 0;
}

.lectureroom-warper .workshop .work-box .item-img img {
  width: 100%;
}

.lectureroom-warper .Expert {
  margin-top: 20px;
}

.lectureroom-warper .Expert .top-nav {
  display: flex;
}

.lectureroom-warper .Expert .top-nav .title {
  margin-top: 6px;
  font-size: 24px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 24px;
  letter-spacing: 0px;
  color: #333333;
  height: 24px;
  border-left: 4px solid #2e76da;
  padding-left: 10px;
}

.lectureroom-warper .Expert .item-expert {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  width: 100%;
  text-align: center;
}

.lectureroom-warper .Expert .item-expert .item-expert-list {
  width: 285px;
  position: relative;
  box-sizing: border-box;
  background-color: #fff;
  display: inline-block;
  margin-right: 20px;
  margin-bottom: 20px;
  cursor: pointer;
}

.lectureroom-warper .Expert .item-expert .item-expert-list:hover {
  box-shadow: 2px 5px 14px #afaeae;
}

.lectureroom-warper .Expert .item-expert .item-expert-list:nth-child(4n) {
  margin-right: 0;
}

.lectureroom-warper .Expert .item-expert .item-expert-list .user-img {
  width: 120px;
  height: 120px;
  margin-top: 30px;
}

.lectureroom-warper .Expert .item-expert .item-expert-list .name {
  font-size: 18px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 20px;
  letter-spacing: 0px;
  color: #333333;
  margin: 10px 0;
}

.lectureroom-warper .Expert .item-expert .item-expert-list .content-title {
  padding: 20px;
  letter-spacing: 0px;
  color: #666666;
  line-height: 20px;
  text-align: left;
  padding-top: 10px;
}