* {
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: Microsoft YaHei;
  text-decoration: none;
}



.header_img {
  width: 1200px;
  margin: 0 auto;

}

.header_img img {
  width: 100%;

}

.swiper-button-next,
.swiper-button-prev {
  color: white;
  transition: .3s;
}

.swiper-button-next:hover,
.swiper-button-next:hover {
  opacity: 0.8;
}

.nav_top {
  width: 1200px;
  height: 357px;
  margin: 16px auto 0;
  background: url(/Public/Home/images/lecture/top.jpg) no-repeat;
  display: flex;
  position: relative;
}

.nav_top_left {
  width: 299px;
  height: 357px;
  border-radius: 10px 0px 0px 10px;
  background: url(/Public/Home/images/lecture/beijing2.png) no-repeat;
  text-align: center;
}

.nav_top_left img {
  width: 190px;
  height: 200px;
  margin-top: 44px;
}

.nav_top_left p {
  width: 130px;
  margin: 0 auto;
  margin-top: 20px;
  font-size: 20px;
  font-weight: 400;
  color: #FFFFFF;
  line-height: 29px;
}

.nav_top_right {
  margin-left: 67px;
  position: relative;
}

.right_img {
  position: absolute;
  left: -50px;
  top: 80px;
}

.nav_top_right h4 {
  width: 631px;
  height: 30px;
  font-size: 27px;
  font-weight: bold;
  color: #FFFFFF;
  line-height: 40px;
  margin-top: 70px;
  letter-spacing: 1px;
}

.nav_top_right p {
  height: 24px;
  font-size: 24px;
  font-weight: 400;
  color: #FFFFFF;
  line-height: 42px;
  margin-top: 50px;
  letter-spacing: 5px;
}

.nav_top_right span {
  width: 56px;
  height: 30px;
  display: inline-block;
  font-size: 30px;
  font-weight: 400;
  color: #F65656;
  line-height: 30px;
  /* background: url(/Public/Home/images/lecture/beijing1.png) no-repeat; */
  text-align: center;
  letter-spacing: 1px;
  margin: 0 10px;

  background: #F9FBFF;
  opacity: 0.79;
  border-radius: 4px;
}

.erweima {
  width: 160px;
  height: 192px;
  background: #00000036;
  position: absolute;
  right: 26px;
  top: 76px;
}

.erweima_img {
  width: 133px;
  height: 137px;
  margin: 0 auto;
  display: block;
  margin-top: 10px;
}

.erweima p {
  font-size: 22px;
  font-weight: 500;
  color: #FFFFFF;
  line-height: 32px;
  text-align: center;
  margin-top: 10px;
}

.right_bottom {
  display: flex;
}

.right_bottom p {
  font-size: 20px;
  font-weight: 400;
  line-height: 43px;
  letter-spacing: 5px;
  width: 109px;
  height: 43px;
  text-align: center;
  padding-left: 17px;
  border: 1px solid #FFFFFF;
  border-radius: 21px;
  position: relative;
}

.right_bottom p:last-child {
  margin-left: 50px;
}

.right_bottom img {
  height: 21px;
  margin-right: 9px;
  margin-top: 10px;
  position: absolute;
  left: 17px;
}

.right_bottom a {
  width: 140px;
  height: 36px;
  text-align: center;
  text-decoration: none;
  font-size: 20px;
  font-weight: 400;
  color: #FFFFFF;
  line-height: 34px;
  background: #FD5353;
  margin-top: 55px;
  margin-left: 33px;
}

.center {
  width: 1200px;
  margin: 0 auto;
  text-align: center;
  margin-top: 10px;
}

.center img {
  width: 337px;
  height: 56px;
}

.main {
  width: 1200px;
  margin: 0 auto;
  margin-top: -40px;
}

.main ul {
  /*display: flex;
  margin-top: 40px;*/
}

.main_ul {
  margin-bottom: 30px;
}

.main_ul li {
  width: 360px;
  height: 371px;
  background: #fafafa;
  border-radius: 8px;
  position: relative;
  transition: 1s;
  margin-right: 40px;
  display: inline-block;
  margin-top: 40px;
}

.main_ul li:last-child {
  margin-right: 0px;
}

.main_ul li img {
  width: 100%;
  height: 200px;
}

.main_ul li:hover {
  box-shadow: 0 0 16px 6px rgba(0, 0, 0, 0.1);
}

/*
.main_ul li:hover .btn-lql{ }
*/
.btn-lql {
  width: 100%;
  height: 55%;
  color: #fff;
  text-align: center;
  position: absolute;
  left: 0%;
  top: 0;
}

.main_ul li p {
  width: 304px;
  height: 60px;
  margin: 0 auto;
  margin-top: 25px;
  font-size: 18px;
  color: #343434;
  line-height: 30px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.main_ul li span {
  width: 304px;
  margin: 0 auto;
  margin-top: 10px;
  font-size: 14px;
  display: block;
  font-weight: 400;
  color: #666666;
}

.details2 {
  width: 82px;
  height: 16px;
  font-size: 16px;
  font-weight: 400;
  color: #ED5252;
  line-height: 42px;
  position: absolute;
  right: 3%;
  bottom: 42px;
  transition: 1s
}

.main_ul li:hover .details2 {
  opacity: 1;
  transition: 1s
}

.js-load-more {
  text-align: center;
  font-size: 18px;
  margin-bottom: 30px;
}

.js-load-more-end {
  text-align: center;
  font-size: 18px;
  margin-bottom: 30px;
}

.activities_video {
  position: fixed;
  left: 33%;
  top: 40%;
  z-index: 99;
}

.activities_video img {
  position: absolute;
  right: -30px;
  top: -30px;
  width: 30px;
  height: 30px;
  border-radius: 100%;
}




/*banner图及预告  开始*/
.lectureActiviWarp {
  width: 1200px;
  height: 290px;
  margin: 0 auto;
  background-size: 100% 100%;
  display: flex;
}

.lectureActiviWarp .lectureActiviL {
  width: 285px;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.lectureActiviWarp .lectureActiviL img {
  width: 178px;
  height: 178px;
  border-radius: 50%;
  margin-bottom: 17px;
}

.lectureActiviWarp .lectureActiviL p {
  font-size: 21px;
  font-weight: 500;
  color: #ffffff;
  letter-spacing: 1px;
}

.lectureActiviWarp .lectureActiviC {
  width: 682px;
  box-sizing: border-box;
  padding-top: 52px;
  padding-left: 95px;
}

.lectureActiviWarp .lectureActiviC>p:nth-child(1) {
  font-size: 30px;
  font-weight: bold;
  color: #ffffff;
  line-height: 40px;
  margin-bottom: 40px;
  letter-spacing: 2px;
  position: relative;
  box-sizing: border-box;
  padding-right: 5%;
}

.lectureActiviWarp .lectureActiviC>p:nth-child(1) span {
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  display: block;
}

.lectureActiviWarp .lectureActiviC>p:nth-child(1)::before {
  position: absolute;
  width: 45px;
  height: 28px;
  content: "";
  display: block;
  background-color: red;
  left: -60px;
  top: 8px;
  background: url(/Public/Home/images/lecture/1.1.gif);
}

.lectureActiviWarp .lectureActiviC>p:nth-child(2) {
  display: flex;
  align-items: center;
  margin-bottom: 39px;
}

.lectureActiviWarp .lectureActiviC>p:nth-child(2) span {
  font-size: 23px;
  font-weight: 400;
  color: #ffffff;
  line-height: 35px;
}

.lectureActiviWarp .lectureActiviC>p:nth-child(2) .lectureActBakg {
  width: 54px;
  height: 31px;
  background: #f9fbffcb;
  border-radius: 4px;
  margin-left: 15px;
  margin-right: 5px;
  text-align: center;
  line-height: 31px;
  font-size: 23px;
  font-weight: 400;
  color: #fa4848;
}

.lectureActiviWarp .lectureActiviC .lectureActiviCB {
  display: flex;
  font-size: 21px;
  font-weight: bold;
  color: #ffffff;
}
.lectureActiviWarp .lectureActiviC .lectureActiviCB .lecActiviCBL {
  height: 43px;
  display: flex;
  align-items: center;
}
.lectureActiviWarp .lectureActiviC .lectureActiviCB .lecActiviCBL img {
  margin-right: 12px;
}
.lectureActiviWarp .lectureActiviC .lectureActiviCB .lecActiviCBL > div:nth-child(1) {
  height: 43px;
  border-radius: 21px;
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  margin-right: 40px;
}
.lectureActiviWarp .lectureActiviC .lectureActiviCB .lecActiviCBL > div:nth-child(2) {
  width: 287px;
  height: 43px;
  display: flex;
  align-items: center;
}
.lectureActiviWarp .lectureActiviC .lectureActiviCB > a:nth-child(2) {
  width: 153px;
  height: 40px;
  background: #fa4848;
  border-radius: 19px;
  display: block;
  text-align: center;
  line-height: 40px;
}
.lectureActiviWarp .lectureActiviC .lectureActiviCB > a:nth-child(2):hover {
  background: rgba(0, 0, 0, 0.178);
}

.lectureActiviWarp .lectureActiviR {
  width: 160px;
  height: 202px;
  background: #0000002c;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 45px;
  font-size: 22px;
  font-weight: 500;
  color: #ffffff;
}

.lectureActiviWarp .lectureActiviR img {
  margin-top: 10px;
  margin-bottom: 15px;
}

/*banner图及预告  结束*/
/*筛选功能*/
.searchBtn {
  background: #f03030 !important;
  color: #ffffff !important;
}

.searchWrap {
  width: 1200px;
  padding: 0 20px;
  margin: 0 auto;
  font-weight: 400;
  font-size: 16px;
  color: #383838;
  height: 238px;
  background: #ffffff;
  box-sizing: border-box;
  padding: 10px 20px;
}

.searchWrap .searchTab2 p {
  margin-bottom: 10px;
}

.searchWrap .searchItem {
  display: flex;
  margin-top: 15px;
  line-height: 32px;
  flex-wrap: wrap;
  width: 1043px;
}

.searchWrap .searchItem p {
  width: 122px;
  height: 32px;
  background: #f4f4f4;
  border-radius: 16px;
  display: block;
  text-align: center;
  color: #666666;
  transition: 0.3s;
  margin-left: 14px;
}

.searchWrap .searchItem p:hover {
  background: #f03030;
  color: #ffffff;
}

.searchWrap .searchLastItem {
  display: flex;
  margin-top: 5px;
  height: 40px;
}

.searchWrap .searchLastItem p {
  font-weight: 400;
  font-size: 16px;
  color: #383838;
  line-height: 40px;
  margin-right: 13px;
}

.searchWrap .searchLastItem input,
.searchWrap .searchLastItem select {
  margin-right: 17px;
  width: 239px;
  height: 40px;
  box-sizing: border-box;
  padding-left: 10px;
  border: 1px solid #d8d8d8;
  border-radius: 5px;
  color: #666;
}

.searchWrap .searchLastItem input::placeholder {
  color: #c8c8c8;
}

.searchWrap .searchLastItem .searchBo {
  margin-left: -8px;
  width: 40px;
  height: 40px;
  background: #e61818;
  border-radius: 6px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.searchWrap .searchLastItem .searchBo img {
  width: 19px;
  height: 19px;
}