* {
  margin: 0;
  padding: 0;
  list-style: none;
  text-decoration: none;
  font-family: '微软雅黑';
}
html,body{
  height: 100%;
}

.header_img {
  width: 100%;
}

.header_img img {
  width: 100%;
  /*margin-top: 20px;*/
}

.title_nav {
  width: 92%;
  margin: 18px auto 0;
  /* border-bottom: 1px solid #F0F0F0; */
  /* padding-bottom: 10px; */
}

.title_nav h4 {
  font-size: 1.125rem;
  font-weight: 400;
  color: #333333;
  line-height: 30px;
  text-align: left;
  font-size: 18px;
  font-weight: bold;
  color: #1E1E1E;
}

.title_time {
  display: flex;
  width: 100%;
}

.title_time p {
  /*width:65%;*/
  font-size: .83rem;
  font-weight: 400;
  color: #999999;
  line-height: 21px;
  margin-top: 2px;
}

.introduction {
  position: relative;
  margin: 0 auto;
  margin-top: 43px;
  padding-bottom: 10px;
  background: #F9F9F9;
  padding-top: 20px;
  padding: 20px 8% 10px 8%;
}

.introduction b {
  line-height: 2rem;
  font-size: 1rem;
}

.introduction p {
  /* width: 87%; */
  margin: 0 auto;
  font-size: .9rem;
  font-weight: 400;
  color: #333333;
  line-height: 25px;
  text-align: left;
}

.introduction img {
  width: 8rem;
  height: 8rem;
  margin: 0 auto;
  display: block;
  margin-bottom: 14px;
}

.activity {
  width: 92%;
  margin: 0 auto;
  margin-top: 20px;
  text-align: left;
}

.activity_p img {
  position: absolute;
  left: 52px;
  top: 10px;
  z-index: -1;
}

.activity div p {
  font-size: 1rem;
  font-weight: bold;
  color: #333333;
}

.activity_p {
  font-weight: bold;
  font-size: 1rem;
  color: #1E1E1E;
  margin-top: 20px;
  display: block;
}

.activity div {
  display: flex;
}

.activity p {
  font-size: .9rem;
  font-weight: 400;
  color: #1E1E1E;
  line-height: 25px;
}

.activity div img {
  margin-top: 10px;
}

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

.playback_top {
  display: flex;
  position: relative;
  padding-bottom: 10px;
  margin-top: 28px;
  border-bottom: 1px solid #C8C8C8;
}

.playback_top img {
  width: 24px;
  height: 19px;
  margin-top: 8px;
  margin-right: 20px;
  margin-left: 20px;
}

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

.playback_top span a {
  font-size: .83rem;
  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: 1rem;
  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: .9rem;
}

.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: .9rem;
  white-space: nowrap;
  text-overflow: ellipsis;
  margin-top: 8px;
}

.p_c_div p {
  font-size: 18px;
}

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

.playback_center a {}


/* new 20230609 jyh */
.lectureTopics_warp {
  background: #F9F9F9;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 400;
  color: #1E1E1E;
  line-height: 26px;
  position: relative;
  padding-top: 29px;
  padding: 29px 8% 0 8%;
  animation-timing-function: 35px;
  margin-top: 45px;
}

.lectureTopics_warp::before {
  content: '讲座主题';
  text-align: center;
  display: block;
  width: 92px;
  height: 31px;
  background: #EA5555;
  border-radius: 8px 2px 8px 2px;
  font-size: 16px;
  font-weight: bold;
  color: #FFFFFF;
  line-height: 31px;
  position: absolute;
  top: -15px;
  left: 5%;
}

.introduction::before {
  content: '讲师介绍';
  text-align: center;
  display: block;
  width: 92px;
  line-height: 31px;
  height: 31px;
  background: #EA5555;
  border-radius: 8px 2px 8px 2px;
  font-size: 16px;
  font-weight: bold;
  color: #FFFFFF;
  position: absolute;
  top: -15px;
  left: 5%;
}

/* 微信扫码模块 */
.codeScanningWrap {
  height: 175px;
  background: #F9F9F9;
  border-radius: 4px;
  padding: 7px 0 17px 0;
  margin-top: 44px;
  position: relative;
}

.codeScanningWrap1::before {
  content: '报名方式';
  text-align: center;
  display: block;
  width: 92px;
  line-height: 31px;
  height: 31px;
  background: #EA5555;
  border-radius: 8px 2px 8px 2px;
  font-size: 16px;
  font-weight: bold;
  color: #FFFFFF;
  position: absolute;
  top: -15px;
  left: 5%;
}

.codeScanningWrap p {
  font-size: 13px;
  font-weight: 400;
  color: #1E1E1E;
  line-height: 26px;
  text-align: center;
}

.codeScanningWrap a {
  text-decoration: underline;
}

.activity_preface p {
  text-indent: 2rem;
}


.topWrap {
  height: 12.63rem;
  background-image: url(image/1.0.png);
  background-size: 100% 100%;
  box-sizing: border-box;
  padding-left: 1rem;
}
.topWrap .topTit {
  display: flex;
  align-items: center;
}
.topWrap .topTit img {
  width: 2.25rem;
  height: 1.38rem;
  margin-right: 0.2rem;
}
.topWrap .topTit span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: bold;
  font-size: 1.46rem;
  color: #ffffff;
  line-height: 4.8rem;
  max-width: 21rem;
}
.topWrap .topCon {
  display: flex;
}
.topWrap .topCon .topConL {
  width: 6.66rem;
  height: 6.66rem;
  box-sizing: border-box;
  border-radius: 50%;
  border: 1px solid #ffffff;
}
.topWrap .topCon .topConR {
  margin-left: 1rem;
}
.topWrap .topCon .topConR img {
  width: 0.75rem;
  height: 0.75rem;
}
.topWrap .topCon .topConR > p:nth-child(1) {
  font-weight: 800;
  font-size: 1.14rem;
  color: #ffffff;
  line-height: 1.25rem;
  margin-top: 0.38rem;
}
.topWrap .topCon .topConR > p:nth-child(2),
.topWrap .topCon .topConR > p:nth-child(3) {
  font-weight: bold;
  font-size: 0.7rem;
  color: #ffffff;
  line-height: 0.7rem;
  display: flex;
  align-items: center;
  margin-top: 0.63rem;
}
.topWrap .topCon .topConR > p:nth-child(2) img,
.topWrap .topCon .topConR > p:nth-child(3) img {
  margin-right: 0.2rem;
}
.topWrap .topCon .topConR > p:nth-child(4) {
  font-weight: 400;
  font-size: 0.76rem;
  color: #FFFFFF;
  line-height: 1.02rem;
  margin-top: 0.9rem;
  display: flex;
}
.topWrap .topCon .topConR > p:nth-child(4) span {
  display: block;
  width: 1.77rem;
  height: 1.02rem;
  background: #f9fbffc0;
  border-radius: 0.07rem;
  font-weight: 400;
  font-size: 0.76rem;
  color: #FA4848;
  line-height: 1.02rem;
  text-align: center;
  margin-left: 0.4rem;
  margin-right: 0.2rem;
}