* {
  margin: 0;
  padding: 0;
  text-decoration: none;
  list-style: none;
}

/*banner图及预告  开始*/
.lectureActiviWarp {
  width: 1200px;
  height: 290px;
  margin: 0 auto;
  background: url(/Public/Home/images/lecture/1.1.png);
  background-size: 100% 100%;
  margin-top: 30px;
  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;
  position: relative;
}

.lectureActiviWarp .lectureActiviC::before {
  position: absolute;
  width: 45px;
  height: 28px;
  content: '';
  display: block;
  left: 35px;
  top: 60px;
  background: url(/Public/Home/images/lecture/1.1.gif);
}

.lectureActiviWarp .lectureActiviC>p:nth-child(1) {
  font-size: 30px;
  font-weight: bold;
  color: #ffffff;
  line-height: 40px;
  margin-bottom: 40px;
  letter-spacing: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 583px;
}

.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*/


p {
  font-size: 16px;
  /* line-height: 30px; */
}

.header_img {
  width: 1200px;
  margin: 0 auto;
  /*margin-bottom: 20px;*/
}

.header_img img {
  width: 100%;

}

.main {
  width: 1200px;
  margin: 0 auto;
  display: flex;
}

.main_left {
  width: 760px;
  background: #FFFFFF;
  margin-bottom: 31px;
  padding-top: 30px;
  box-shadow: 0px 1px 13px 0px rgba(191, 43, 43, 0.1);
  box-sizing: border-box;
  padding: 24px;
}

.left_top {
  position: relative;
  display: flex;
}

.left_top h3 {
  font-size: 24px;
  font-weight: bold;
  line-height: 24px;
  color: #333333;
  width: 579px;
  margin-bottom: 21px;
}

.left_top img {
  margin-left: 53px;
  margin-right: 5px;
  position: absolute;
  left: -11px;
  top: 8px;
}

.left_top p {
  width: 109px;
  height: 65px;
  background: #EFEFEF;
  position: absolute;
  right: 0;
  border-radius: 4px;
  color: #3F3D3D;
  line-height: 80px;
  font-size: 18px;
  letter-spacing: 1px;
  text-align: center;
}

.left_top a {
  color: #F25354;
  line-height: 42px;
  font-size: 14px;
  letter-spacing: 1px;
}

.left_top_time {
  padding-bottom: 20px;
  border-bottom: 1px solid #EDEDED;
  display: flex;
  color: #999999;
}

.left_center {
  display: flex;
  position: relative;
  border-bottom: 1px solid #F0F0F0;
  padding-bottom: 30px;
}

.center_left p {
  font-weight: 400;
  color: #333333;
  line-height: 30px;
  font-size: 16px;
}

.center_left p img {
  width: 40px;
  height: 17px;
  margin-right: 20px;
}

.center_right {
  display: flex;
  position: absolute;
  right: 10px;
  top: 30px;
}

.center_right div {
  text-align: center;
}

.center_right div p {
  margin-top: 10px;
}

.center_right img {
  width: 82px;
  height: 84px;
  margin-right: 15px;
}

.center_main {
  width: 712px;
  margin: 0 auto;
  text-align: center;
  margin-top: 20px;
}

/* .main_top34_warp{
  display: flex;
  margin-top: 20px
} */
/* .main_top1,.main_top2,.main_top3,.main_top4{
    margin-bottom:25px;
} */

.main_top34_warp {
  overflow: hidden;
  text-align: left;
}

.main_top34_warp p {
  line-height: 28px;
}

.main_top34_warp .main_top34title {
  text-align: center;
  width: 109px;
  height: 36px;
  background: #EA5555;
  border-radius: 8px 2px 8px 2px;
  font-size: 20px;
  font-weight: bold;
  color: #FFFFFF;
  line-height: 36px;
  margin-top: -18px;
  margin-bottom: 10px;
}

.main_top34_warp .main_top3,
.main_top34_warp .main_top1 {
  width: 100%;
  height: auto;
  background: #F9F9F9;
}

.main_top34_warp .main_top3 {
  box-sizing: border-box;
  padding-right: 9px;
  border-radius: 10px;
  padding-bottom: 17px;
  border-top: 50px solid #ffffff;
}

.main_top34_warp .main_top1 {
  padding-left: 20px;
  box-sizing: border-box;
  border-top: 55px solid #ffffff;
  border-radius: 10px;
  padding-bottom: 20px;
}

.main_top34_warp .main_top1 .main_top34title {
  margin-left: -20px;
}

.main_top34_warp .main_top3 .main_top3Down {
  display: flex;
}

.main_top3_img {
  display: flex;
  align-items: center;
}

.main_top34_warp .main_top3 .main_top3Down img {
  width: 109px;
  height: 109px;
  margin-left: 20px;
  margin-right: 13px;
}

.main_top34_warp .main_top3 .main_top3Down .main_top3DR {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.main_top34_warp .main_top3 .main_top3Down .main_top3DR>p:nth-child(1) {
  font-size: 16px;
  font-weight: bold;
  color: #333333;
  margin: 0;
  padding: 0;
  margin-top: -5px;
  margin-bottom: 10px;
}

.main_top2 {
  margin-top: 35px;
}

.main_top2 p,
.main_top4 p {
  font-size: 16px;
  margin-top: 12px;
  color: #333333;
  line-height: 30px;
  text-align: left;
  text-indent: 2rem;
}

.main_top2 img {
  display: block;
  max-width: 100%;
}

.main_top4 {
  width: 99%;
  margin: 0 auto;
}

.main_top4_img {
  width: 130px;
  height: 130px;
  margin-left: 37px;
}

.main_top4_div {
  padding-top: 33px;
  margin-left: 24px;
}

.main_top4_div>p:nth-child(1) {
  font-size: 18px;
  font-weight: bold;
  font-style: italic;
  color: #333333;
  line-height: 18px;
  margin-bottom: 24px;
}

.main_top4_div>p:nth-child(2) {
  font-size: 16px;
  font-weight: 400;
  color: #333333;
}

.main_top2 span,
.main_top4 span {
  display: block;
  font-weight: 400;
  color: #333333;
  line-height: 28px;
  font-size: 16px;
  margin-top: 15px;
  text-align: left;
}



.main_right {
  width: 400px;
  margin-left: 40px;
}

.playback_top {
  display: flex;
  position: relative;
  padding-bottom: 10px;
  margin-top: 20px;
  border-bottom: 1px solid #C8C8C8;
}

.playback_top img {
  margin-top: 8px;
  margin-right: 20px;
  margin-left: 20px;
}

.playback_top p {
  font-size: 20px;
  line-height: 34px;
}

.playback_top span {
  font-size: 14px;
  line-height: 34px;
  color: #EA5555;
  position: absolute;
  right: 10px;
}

.p_main li {
  display: flex;
  margin-top: 15px;
  transition: 0.4s;
}

.p_main li p {
  width: 50px;
  height: 45px;
  text-align: center;
  background: #EBEBEB;
  margin: 0 20px;
  color: #666666;
  padding-top: 5px;
}

.p_main li:hover p {
  background: #EA5555;
  color: #fff;
}

.p_main_r {
  width: 284px;
  font-size: 16px;
  font-weight: 400;
  color: #333333;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.p_main_r a {
  color: #333333;
}

.p_main_r span {
  color: #666666;
  font-size: 14px;
}

.playback_center li {
  display: flex;
  position: relative;
  margin: 20px 0;
}

.playback_center li img {
  width: 68px;
  height: 68px;
  margin-left: 20px;
  border-radius: 50%;
}

.p_c_div {
  margin-left: 20px;
  width: 182px;
  overflow: hidden;
  font-size: 16px;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin-top: 10px;
  float: left;
}

.p_c_div span {
  font-size: 14px;
  font-weight: 400;
  color: #666666;
  line-height: 30px;
}

.playback_center .yuyue {
  width: 50px;
  position: absolute;
  right: 20px;
  top: 30%;
  font-size: 16px;
  color: #333333;
  line-height: 27px;
  text-align: center;
  border: 1px solid #fff;
  transition: 0.4s;
}

.playback_center .yuyue:hover {
  width: 50px;
  border: 1px solid #FA6B6B;
  border-radius: 4px;
  color: #FA6B6B;
}

.videolist1:hover {
  cursor: pointer;
}

.videoed {
  width: 50px;
  height: 50px;
  position: absolute;
  left: 45%;
  top: 45%;
  z-index: 99;
  border-radius: 100%;
}

.videos1 {
  display: none;
  border: 1px solid #080808;
  position: fixed;
  left: 50%;
  top: 50%;
  margin-left: -320px;
  margin-top: -210px;
  z-index: 100;
  width: 640px;
  padding-top: 38px;
  background: #ccc;
}

.vclose {
  position: absolute;
  right: 1%;
  top: 1%;
  border-radius: 100%;
  cursor: pointer;
}

.activities_video img {
  position: absolute;
  right: -20px;
  top: 0px;
  width: 30px;
  height: 30px;
}

.dynamic_loc {
  font-size: 13px;
  color: #555555;
  line-height: 55px;
  margin-left: 15%;
  width: 1200px;
  margin: 0 auto;
}

.dynamic_loc:before {
  content: "";
  width: 15px;
  height: 13px;
  background: url(../images/home.jpg) no-repeat;
  display: inline-block;
  margin-right: 5px;
}