.sem-main-box {
  background-color: #f4f4f4;
  overflow: hidden;
}
.sem-main-box .sem-banner {
  width: 100%;
  height: 520px;
  background-repeat: no-repeat;
  background-position: center center;
}
.sem-main-box .sem-banner .sem-huoma-box {
  width: 1200px;
  margin: 0 auto;
}
.sem-main-box .sem-banner .sem-huoma-box .pop-box {
  position: relative;
  width: 180px;
  height: 40px;
  float: right;
  cursor: pointer;
  margin-top: 310px;
  margin-right: 314px;
}
.sem-main-box .sem-banner .sem-huoma-box .pop-box:hover .add-qw-code {
  display: block;
}
.sem-main-box .sem-banner .sem-huoma-box .pop-box .add-qw-code {
  display: none;
  position: absolute;
  bottom: 49px;
  width: 205px;
  height: 235px;
  left: 50%;
  margin-left: -105px;
  text-align: center;
  background-color: rgba(208, 77, 33, 0.902);
  border-radius: 12px;
  z-index: 8888;
}
.sem-main-box .sem-banner .sem-huoma-box .pop-box .add-qw-code .code-text-box {
  color: #fffbef;
  font-size: 24px !important;
  text-align: center;
  display: block;
  line-height: 42px;
  padding-top: 0px;
}
.sem-main-box .sem-banner .sem-huoma-box .pop-box .add-qw-code .code-img-box {
  width: 182px;
  height: 182px;
  display: block;
  margin: 0 auto;
  padding-top: 9px;
}
.sem-main-box .sem-banner .sem-huoma-box .pop-box .add-qw-code .code-img-box img {
  width: 182px;
  height: 182px;
  border: 2px solid #d14920;
  border-radius: 12px;
  box-sizing: border-box;
}
.sem-main-box .sem-column {
  width: 1200px;
  margin: 0 auto;
  background-color: #ffffff;
  margin-top: 60px;
  overflow: hidden;
  padding: 38px 0px;
}
.sem-main-box .sem-column .sem-column-item {
  clear: both;
}
.sem-main-box .sem-column .sem-column-item p {
  width: 135px;
  float: left;
  font-size: 18px;
  color: #141414;
  font-weight: 600;
  text-align: right;
  padding: 5px 0px;
}
.sem-main-box .sem-column .sem-column-item p.rj-type {
  padding-top: 25px;
}
.sem-main-box .sem-column .sem-column-item > ul {
  float: left;
  width: 1015px;
}
.sem-main-box .sem-column .sem-column-item > ul.sem-column-jc li {
  font-size: 18px;
  color: #141414;
  float: left;
  padding: 5px 8px;
  margin-right: 40px;
  cursor: pointer;
}
.sem-main-box .sem-column .sem-column-item > ul.sem-column-jc li.active {
  color: #dc4016;
  background-color: #f4f4f4;
  padding: 5px 8px;
}
.sem-main-box .sem-column .sem-column-item > ul.sem-column-rj li {
  width: 140px;
  height: 40px;
  border: 1px solid #dedede;
  padding: 5px 5px;
  text-align: left;
  box-sizing: border-box;
  font-size: 14px;
  line-height: 28px;
  float: left;
  margin-right: 20px;
  margin-top: 17px;
  cursor: pointer;
}
.sem-main-box .sem-column .sem-column-item > ul.sem-column-rj li img {
  width: 28px;
  height: 28px;
  margin-right: 10px;
  vertical-align: -10px;
}
.sem-main-box .sem-column .sem-column-item > ul.sem-column-rj li.active {
  background-color: #f4f4f4;
  color: #dc4016;
}
.sem-main-box .sem-list-box {
  width: 1200px;
  margin: 0 auto;
}
.sem-main-box .sem-list-box .sem-list {
  margin-left: -20px;
  padding-top: 60px;
}
.sem-main-box .sem-list-box .sem-list li {
  width: 284px;
  float: left;
  margin-left: 20px;
  margin-bottom: 29px;
  transition: all .3s;
  height: 270px;
  padding-top: 10px;
  box-sizing: border-box;
  cursor: pointer;
}
.sem-main-box .sem-list-box .sem-list li .cover {
  width: 284px;
  height: 160px;
  position: relative;
}
.sem-main-box .sem-list-box .sem-list li .cover > img {
  width: 284px;
  height: 160px;
}
.sem-main-box .sem-list-box .sem-list li .cover .cover-mask {
  position: absolute;
  width: 284px;
  height: 160px;
  left: 0px;
  top: 0px;
}
.sem-main-box .sem-list-box .sem-list li .cover .cover-mask .cover-tit {
  color: #ffffff;
  padding-top: 30px;
  padding-left: 20px;
  line-height: 32px;
  font-size: 18px;
  letter-spacing: 5px;
}
.sem-main-box .sem-list-box .sem-list li .cover .cover-mask > img {
  width: 52px;
  height: 52px;
  padding-top: 55px;
  padding-left: 117px;
  display: none;
}
.sem-main-box .sem-list-box .sem-list li .cover .cover-mask > span {
  background: rgba(0, 0, 0, 0.5);
  color: #ffffff;
  padding: 4px 8px;
  float: right;
  margin-top: 130px;
  margin-right: 5px;
}
.sem-main-box .sem-list-box .sem-list li .info {
  width: 284px;
  height: 100px;
  border-top: 1px solid #dbdada;
  box-sizing: border-box;
  padding: 0px 15px;
  background-color: #ffffff;
}
.sem-main-box .sem-list-box .sem-list li .info .tit {
  color: #060606;
  line-height: 20px;
  height: 38px;
  overflow: hidden;
  font-size: 16px;
  padding-top: 20px;
}
.sem-main-box .sem-list-box .sem-list li .info .tag {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  padding-top: 10px;
}
.sem-main-box .sem-list-box .sem-list li .info .tag span:nth-child(1) {
  color: #999999;
}
.sem-main-box .sem-list-box .sem-list li .info .tag span:nth-child(1) i {
  padding-right: 3px;
  vertical-align: -1px;
}
.sem-main-box .sem-list-box .sem-list li .info .tag span:nth-child(2) {
  color: #dc4016;
}
.sem-main-box .sem-list-box .sem-list li .info .tag a {
  color: #dc4016;
  padding-top: 3px;
}
.sem-main-box .sem-list-box .sem-list li:hover {
  padding-top: 0px;
}
.sem-main-box .sem-list-box .page-show {
  clear: both;
}
.sem-main-box .sem-list-box .page-show a {
  background-color: #f4f4f4;
  color: #979797;
}
.sem-main-box .sem-list-box .page-show a.current {
  background-color: #dc4016;
  color: #ffffff;
}
.sem-main-box .sem-list-box .page-show span {
  color: #979797;
  display: inline-block;
  font-size: 13px;
  padding-left: 10px;
}
.sem-main-box .sem-bottom {
  background: url(../../images/sem-video/sem_bot_bg.jpg) no-repeat;
  width: 100%;
  height: 177px;
  clear: both;
  margin-top: 60px;
}
.sem-main-box .sem-bottom .sem-bottom-main {
  width: 1200px;
  margin: 0 auto;
}
.sem-main-box .sem-bottom .sem-bottom-main .sem-bot-left {
  font-size: 35px;
  color: #ffffff;
  font-weight: 600;
  line-height: 50px;
  padding-top: 30px;
  float: left;
}
.sem-main-box .sem-bottom .sem-bottom-main .sem-contact {
  float: left;
  padding-top: 33px;
}
.sem-main-box .sem-bottom .sem-bottom-main .sem-contact li {
  width: 290px;
  height: 93px;
  float: left;
  margin-left: 40px;
}
.sem-main-box .study-bot-con {
  width: 1200px;
  margin: 0 auto;
}
.sem-main-box .study-bot-con .study-main {
  display: flex;
  justify-content: space-between;
  overflow: hidden;
  margin-top: 30px;
  padding-bottom: 60px;
}
.sem-main-box .study-bot-con .study-main .study-main-left {
  width: 780px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified {
  width: 780px;
  margin-right: 20px;
  border: 1px solid #ececec;
  background: #fff;
  color: #333;
  display: none;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.active {
  display: block;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified .intro-box {
  padding: 20px 30px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified .intro-box img {
  max-width: 100%;
  padding: 10px 0px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified .intro-box p {
  line-height: 26px;
  padding: 0px 0px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified .h4 {
  text-align: left;
  font-size: 18px;
  line-height: 28px;
  border-bottom: 1px solid #e9e9e9;
  padding: 20px 0 12px 21px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .h4 {
  text-align: left;
  font-size: 18px;
  line-height: 28px;
  border-bottom: 1px solid #e9e9e9;
  padding: 20px 0 12px 21px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 span {
  font-size: 12px;
  line-height: 14px;
  color: #ed564f;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 60px;
  height: 20px;
  border: 1px solid #ed564f;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .h5 {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  font-size: 14px;
  line-height: 14px;
  padding: 22px 0 12px 21px;
  border-bottom: 1px solid #e9e9e9;
  cursor: pointer;
  position: relative;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .h5 .img-small {
  width: 17px;
  height: 17px;
  display: inline-block;
  padding-right: 12px;
  background: url("../../images/video-play/img-play-small.png") no-repeat;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .h5.active .img-small {
  background: url("../../images/video-play/img-small-right.png") no-repeat;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info {
  margin-left: 48px;
  border-bottom: 1px solid #e9e9e9;
  cursor: pointer;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info .icon-24gf-playCircle {
  display: inline-block;
  color: #858585;
  font-size: 18px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info.bt {
  border-top: 1px solid #e9e9e9;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info.active {
  display: block;
  color: #393939;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info.active .icon-24gf-playCircle {
  color: #393939;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info .inner > span {
  margin-left: 20px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info .inner .iconsuo {
  color: #979797 ;
  padding-left: 5px;
  font-size: 14px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info .inner a {
  display: inline-block;
  font-size: 14px;
  line-height: 14px;
  color: #333;
  padding: 16px 0;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info .inner a .iconbofang {
  display: inline-block;
  padding-right: 7px;
  color: #a2a2a2;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info .hover-span {
  float: right;
  display: none;
  width: 80px;
  height: 32px;
  line-height: 32px;
  background-color: #dc4016;
  color: #ffffff;
  border-radius: 5px;
  margin-right: 20px;
  margin-top: 7px;
  text-align: center;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info:hover {
  background-color: #f8fafc;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.course-wrap .record-play-1 .video-info:hover .hover-span {
  display: block;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions {
  padding-left: inherit;
  position: relative;
  background: none;
  border: none;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main {
  background: #fff;
  border: 1px solid #ececec;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish {
  display: flex;
  padding-top: 20px;
  padding-bottom: 20px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-img {
  position: relative;
  display: flex;
  margin-left: 25px;
  height: 42px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-img img {
  width: 42px;
  height: 42px;
  border-radius: 100px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-img i {
  position: absolute;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-img i.crown {
  background: url("../../images/video-play/crown.png") no-repeat;
  width: 19px;
  height: 14px;
  top: -7px;
  left: 11px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-img i.svip {
  background: url("../../images/video-play/svip.png") no-repeat;
  width: 28px;
  height: 10px;
  bottom: 1px;
  left: 7px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-areatext {
  flex: 1;
  margin-left: 8px;
  margin-right: 20px;
  box-sizing: border-box;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-areatext textarea {
  width: 100%;
  height: 100px;
  background: #f9f9f9;
  border: 1px solid #ececec;
  box-sizing: border-box;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-areatext .text-area-btn {
  display: flex;
  float: right;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-areatext .text-area-btn .textarea-yzm {
  flex: 1;
  margin-top: 10px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-areatext .text-area-btn .textarea-yzm .yzm-input {
  width: 160px;
  height: 40px;
  border: 1px solid #d4d4d4;
  margin-right: 12px;
  font-size: 14px;
  padding: 14px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  float: left;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-areatext .text-area-btn .textarea-yzm img {
  float: left;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-areatext .text-area-btn .cplay-btn {
  margin-top: 10px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-areatext .text-area-btn .cplay-btn button {
  width: 120px;
  height: 38px;
  line-height: 38px;
  margin-left: 10px;
  float: right;
  font-size: 16px;
  color: #fff;
  border-radius: 1px;
  letter-spacing: 0.27px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-areatext .text-area-btn .cplay-btn button.publish {
  background: #ED564F;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .cplay-publish .cplay-publish-areatext .text-area-btn .cplay-btn button.cancel {
  background: #2D2D2D;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box {
  margin-top: -20px;
  padding: 0px 20px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item {
  border-bottom: 1px solid #E9E9E9;
  padding: 40px 0px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .question-tit {
  font-size: 18px;
  color: #222222;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .about-answer {
  display: flex;
  justify-content: space-between;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .about-answer .about-answer-text {
  font-size: 14px;
  color: #222222;
  letter-spacing: 0;
  padding-top: 5px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .about-answer .about-answer-text .answer-text {
  padding-right: 20px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .about-answer .about-answer-text .check-answer {
  font-size: 16px;
  color: #ED564F;
  display: block;
  padding-top: 11px;
  cursor: pointer;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .about-answer .about-answer-text .check-answer i {
  font-size: 12px;
  margin-right: 6px;
  vertical-align: 1px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .about-answer .about-answer-text .check-answer i.iconxiazai6 {
  display: inline-block;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .about-answer .about-answer-text .check-answer i.iconjiantoudown {
  display: none;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .about-answer .about-answer-text .check-answer.fode i.iconxiazai6 {
  display: none;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .about-answer .about-answer-text .check-answer.fode i.iconjiantoudown {
  display: inline-block;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .about-answer .to-answer {
  display: block;
  background: #ED564F;
  border-radius: 1px;
  font-size: 16px;
  color: #FFFFFF;
  letter-spacing: 0.27px;
  width: 120px;
  height: 38px;
  line-height: 38px;
  text-align: center;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .answer-list {
  display: none;
  margin-left: 23px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .answer-list li {
  border-bottom: 1px dashed #E9E9E9;
  padding-top: 20px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .answer-list li .answer-top {
  font-size: 14px;
  color: #606060;
  letter-spacing: 0.24px;
  line-height: 28px;
  display: flex;
  justify-content: space-between;
  justify-items: center;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .answer-list li .answer-top img {
  width: 28px;
  height: 28px;
  border-radius: 5px;
  margin-right: 13px;
  vertical-align: -8px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .answer-list li .answer-text {
  padding-top: 18px;
  font-size: 16px;
  color: #606060;
  letter-spacing: 0.27px;
  line-height: 24px;
  padding-bottom: 15px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .to-answer-publish {
  padding-top: 15px;
}
.sem-main-box .study-bot-con .study-main .study-main-left .unified.questions .cplay-con-main .question-list-box .question-item .to-answer-publish .cplay-publish-areatext {
  margin-right: 0px;
}
.sem-main-box .study-bot-con .study-main .study-main-right {
  width: 400px;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box {
  width: 400px;
  background: #FFFFFF;
  border: 1px solid #ECECEC;
  margin-bottom: 20px;
  overflow: hidden;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .right-box-tit {
  height: 57px;
  line-height: 57px;
  box-sizing: border-box;
  padding-left: 20px;
  font-size: 18px;
  color: #333333;
  letter-spacing: 0.3px;
  border-bottom: 1px solid #E9E9E9;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .course-teacher {
  text-align: center;
  padding: 20px 40px;
  box-sizing: border-box;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .course-teacher img {
  width: 120px;
  height: 120px;
  border-radius: 120px;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .course-teacher p {
  font-size: 14px;
  color: #333;
  letter-spacing: 0.24px;
  text-align: center;
  line-height: 22px;
  padding-top: 10px;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .course-teacher p .name {
  display: block;
  font-size: 18px;
  color: #333;
  letter-spacing: 0.3px;
  padding-bottom: 5px;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .other-course {
  border-top: 1px solid #e9e9e9;
  padding-top: 20px;
  margin: 0px 22px;
  font-size: 14px;
  color: #333;
  letter-spacing: 0.24px;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .ahout-course-ul {
  margin-top: 20px;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .ahout-course-ul li {
  width: 172px;
  float: left;
  margin-left: 18px;
  margin-bottom: 20px;
  position: relative;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .ahout-course-ul li .top-cover {
  position: relative;
  width: 172px;
  height: 118px;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .ahout-course-ul li .top-cover img {
  width: 172px;
  height: 118px;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .ahout-course-ul li .top-cover .cover-tit {
  position: absolute;
  top: 20px;
  font-size: 16px;
  color: #ffffff;
  left: 15px;
  letter-spacing: 2px;
  line-height: 26px;
}
.sem-main-box .study-bot-con .study-main .study-main-right .right-box .ahout-course-ul li .tit {
  width: 169px;
  font-size: 14px;
  color: #333333;
  letter-spacing: 0.24px;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-top: 10px;
}
.sem-main-box .menu-subnav {
  color: #393939;
  height: 75px;
  padding-top: 38px;
  box-sizing: border-box;
}
.sem-main-box .menu-subnav ul {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
.sem-main-box .menu-subnav ul li {
  width: 110px;
  border-bottom: 4px solid transparent;
  padding-bottom: 16px;
  text-align: center;
  cursor: pointer;
  position: relative;
}
.sem-main-box .menu-subnav ul li.active {
  border-bottom: 4px solid #dc4016;
}
.sem-main-box .menu-subnav ul li:hover {
  color: #dc4016;
}
.sem-main-box .menu-subnav ul li span {
  font-size: 12px;
  line-height: 14px;
  background: #ed564f;
  position: absolute;
  right: -6px;
  top: -4px;
  padding: 1px 2px;
}
.sem-main-box .study-c-btn {
  clear: both;
  overflow: hidden;
  padding-top: 10px;
  padding-bottom: 60px;
}
.sem-main-box .study-c-btn a {
  display: block;
  height: 42px;
  background-color: #c33200;
  font-size: 16px;
  line-height: 42px;
  box-sizing: border-box;
  text-align: center;
  border-radius: 42px;
  width: 240px;
  margin: 0 auto;
  color: #ffffff;
  box-shadow: 1px 3px 8px -1px #8b3200;
}
.study-layout-box {
  width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
}
.study-layout-box .course-tags-u {
  clear: both;
  overflow: hidden;
  padding-top: 15px;
}
.study-layout-box .course-tags-u li {
  float: left;
  width: 120px;
  color: #ffffff;
  font-size: 14px;
  padding-top: 10px;
}
.study-layout-box .course-tags-u li img {
  width: 30px;
  height: 30px;
  vertical-align: -10px;
}
.study-layout-box .study-video-wrap {
  width: 780px;
  background: #292929;
  float: left;
}
.study-layout-box .study-video-wrap .video-wrap {
  width: 780px;
  height: 440px;
  background: #b3c8ca;
  position: relative;
}
.study-layout-box .study-video-wrap .video-wrap .my-player2,
.study-layout-box .study-video-wrap .video-wrap .my-player3 {
  display: none;
}
.study-layout-box .study-video-wrap .video-wrap .video-cover-img {
  width: 780px;
  display: none;
  position: relative;
}
.study-layout-box .study-video-wrap .video-wrap .video-cover-img img {
  width: 780px;
  height: 440px;
}
.study-layout-box .study-video-wrap .video-wrap .video-cover-img i {
  position: absolute;
  font-size: 70px;
  top: 50%;
  left: 50%;
  margin-left: -35px;
  margin-top: -35px;
  color: #393939;
}
.study-layout-box .study-video-wrap .video-wrap .video-cover-img.show {
  display: block;
}
.study-layout-box .study-video-wrap .video-wrap .video-js .vjs-big-play-button {
  width: 83px;
  height: 83px;
  border: none;
}
.study-layout-box .study-video-wrap .video-wrap .video-js .vjs-big-play-button span:before {
  display: none;
}
.study-layout-box .study-video-wrap .video-cli {
  height: 40px;
  line-height: 40px;
}
.study-layout-box .study-video-wrap .video-cli > p {
  float: left;
  padding-left: 20px;
}
.study-layout-box .study-video-wrap .video-cli > p.upload-time {
  color: #ffffff;
  font-size: 13px;
}
.study-layout-box .study-video-wrap .video-cli > div {
  float: right;
  color: #fff;
  font-size: 14px;
  margin: 0px 11px;
}
.study-layout-box .study-video-wrap .video-cli .share-box {
  position: relative;
  float: right;
}
.study-layout-box .study-video-wrap .video-cli .share-box i {
  font-size: 14px;
  cursor: default;
}
.study-layout-box .study-video-wrap .video-cli .share-box button {
  background: none;
  border: none;
  font-size: 14px;
  line-height: 17px;
  font-weight: 100;
  color: #fff;
  letter-spacing: 0.24px;
}
.study-layout-box .study-video-wrap .video-cli .share-box .bshare-custom {
  position: absolute;
  top: 40px;
  right: -10px;
  width: 110px;
  display: none;
}
.study-layout-box .study-video-wrap .video-cli .share-box:hover .bshare-custom {
  display: block;
}
.study-layout-box .study-video-wrap .video-cli .download-res {
  margin-right: 10px;
}
.study-layout-box .study-price-wrap {
  width: 420px;
  float: right;
  background: #3c3c3c;
  height: 480px;
}
.study-layout-box .study-price-wrap .course-teacher-info {
  padding: 20px;
  box-sizing: border-box;
}
.study-layout-box .study-price-wrap .course-teacher-info .user-pic {
  width: 48px;
  height: 48px;
  position: relative;
}
.study-layout-box .study-price-wrap .course-teacher-info .user-pic img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}
.study-layout-box .study-price-wrap .course-teacher-info .user-pic label {
  display: inline-block;
  width: 17px;
  height: 17px;
  position: absolute;
  background: #dc4016;
  border-radius: 50%;
  bottom: -9%;
  left: 30%;
}
.study-layout-box .study-price-wrap .course-teacher-info .user-pic label:after {
  content: '+';
  display: inline-block;
  color: #fff;
  font-size: 23px;
  position: absolute;
  bottom: -7%;
  left: 6%;
}
.study-layout-box .study-price-wrap .course-teacher-info .user-pic input[type='file'] {
  position: absolute;
  font-size: 100px;
  right: 0;
  top: 0;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}
.study-layout-box .study-price-wrap .course-teacher-info .user-sign {
  margin: 0 34px 0 10px;
  clear: both;
  overflow: hidden;
}
.study-layout-box .study-price-wrap .course-teacher-info .user-sign h6 {
  font-size: 18px;
  line-height: 28px;
  color: #fff;
  font-weight: 100;
}
.study-layout-box .study-price-wrap .course-teacher-info .user-sign strong {
  color: #fff;
  font-size: 12px;
  line-height: 20px;
}
.study-layout-box .study-price-wrap .course-teacher-info .collection {
  width: 80px;
  height: 26px;
  border: 1px solid #8a8a8a;
  box-sizing: border-box;
  color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
}
.study-layout-box .study-price-wrap .course-teacher-info .collection span {
  font-size: 14px;
}
.study-layout-box .study-price-wrap .price-course {
  background: url("../../images/video-play/img_price.png") no-repeat;
  display: flex;
  justify-content: space-between;
  align-content: center;
  height: 44px;
  width: 420px;
}
.study-layout-box .study-price-wrap .price-course .col-span {
  display: flex;
  align-items: center;
}
.study-layout-box .study-price-wrap .price-course .col-span:first-child {
  margin-left: 20px;
}
.study-layout-box .study-price-wrap .price-course .col-span:last-child {
  margin-right: 20px;
}
.study-layout-box .study-price-wrap .price-course .col-span h6 {
  font-size: 18px;
  line-height: 21px;
  color: #ff4b1b;
  padding-left: 15px;
}
.study-layout-box .study-price-wrap .price-course .col-span span {
  color: #ffffff;
  font-size: 14px;
}
.study-layout-box .study-price-wrap .soft {
  color: #ffffff;
  font-size: 14px;
  line-height: 24px;
}
.study-layout-box .study-price-wrap .price-btn-info {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 24px 20px 0px;
}
.study-layout-box .study-price-wrap .price-btn-info a {
  display: inline-block;
  width: 300px;
  height: 38px;
  line-height: 38px;
  text-align: center;
  font-size: 16px;
  color: #FFFFFF;
  letter-spacing: 0.27px;
  border-radius: 5px;
  margin-right: 13px;
}
.study-layout-box .study-price-wrap .price-btn-info a.buy {
  background: #ED564F;
}
.study-layout-box .study-price-wrap .price-btn-info a.vip {
  background: #ED9A4F;
}
.study-layout-box .study-price-wrap .course-detailed-info {
  padding: 0 20px 20px 20px;
}
.study-layout-box .study-price-wrap .course-detailed-info .course-detailed-tit {
  border-bottom: 1px solid #525252;
  margin-bottom: 20px;
  margin-top: 30px;
}
.study-layout-box .study-price-wrap .course-detailed-info .course-detailed-tit span {
  display: block;
  width: 78px;
  height: 28px;
  line-height: 28px;
  background: #525252;
  text-align: center;
  font-size: 14px;
  color: #FFFFFF;
  letter-spacing: 0.24px;
}
.study-layout-box .study-price-wrap .course-detailed-info .course-scroll {
  height: 155px;
  box-sizing: border-box;
  position: relative;
}
.study-layout-box .study-price-wrap .course-detailed-info .course-scroll .course-description {
  height: 100%;
  overflow: hidden;
  width: 96%;
}
.study-layout-box .study-price-wrap .course-detailed-info .course-scroll .course-description .col-span {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  color: #fff;
  width: 90%;
}
.study-layout-box .study-price-wrap .course-detailed-info .course-scroll .course-description .col-span span {
  font-size: 14px;
  line-height: 20px;
  font-weight: 100;
}
.study-layout-box .study-price-wrap .course-detailed-info .course-scroll .course-description .course-info {
  color: #fff;
  font-size: 14px;
  line-height: 22px;
  padding-top: 14px;
}
.study-layout-box .study-price-wrap .course-detailed-info .course-scroll .course-description .course-info span {
  font-size: 14px;
  line-height: 20px;
  font-weight: 100;
}
.study-layout-box .study-price-wrap .course-detailed-info .course-scroll .scroll-issue {
  position: absolute;
  top: 0;
  right: 0;
  height: 170px;
  width: 8px;
  background: #333;
  border: 1px solid #525252;
  border-radius: 1px;
}
.study-layout-box .study-price-wrap .course-detailed-info .course-scroll .scroll-issue .scroll-issue-slider {
  position: relative;
  background: #525252;
  border-radius: 1px;
  width: 8px;
  height: 50px;
  cursor: pointer;
}
.video-title-play {
  width: 1200px;
  margin: 0 auto;
  font-size: 18px;
  padding: 20px 0px;
  color: #333333;
}
.right-fixed-video {
  right: 0px;
  top: 29%;
  width: 108px;
  position: fixed;
  border-radius: 8px;
  box-shadow: 0 2px 29px #8b8b8b;
  background: #fff;
  z-index: 99999;
}
.right-fixed-video > ul li {
  text-align: center;
  padding: 10px 0px;
  height: 88px;
  box-sizing: border-box;
  color: #393939;
  cursor: pointer;
  position: relative;
}
.right-fixed-video > ul li::after {
  content: '';
  display: block;
  position: absolute;
  bottom: 0px;
  left: 20px;
  width: 68px;
  border-bottom: 1px solid #efefef;
}
.right-fixed-video > ul li i {
  display: inline-block;
  padding-bottom: 10px;
  font-size: 24px;
  padding-top: 5px;
}
.right-fixed-video > ul li i.icon-youhuiquan {
  font-size: 28px;
}
.right-fixed-video > ul li i.icon-yangbenxinxidanshouyangjilu {
  font-size: 30px;
}
.right-fixed-video > ul li .ewm-box {
  position: absolute;
  right: 110px;
  top: -30px;
  width: 203px;
  height: 200px;
  display: block;
  text-align: center;
  background-color: #ffffff;
  border: 1px solid #eeeeee;
  border-radius: 10px;
  display: none;
}
.right-fixed-video > ul li .ewm-box img {
  width: 128px;
  height: 128px;
  border: 3px solid #ffffff;
  margin: 0 auto;
  margin-top: 8px;
}
.right-fixed-video > ul li .ewm-box p {
  color: #666666;
  line-height: 22px;
  font-size: 14px;
}
.right-fixed-video > ul li .ewm-box p span {
  color: #c33200;
}
.right-fixed-video > ul li:hover {
  background-color: #c33200;
  color: #ffffff;
}
.right-fixed-video > ul li:hover::after {
  border-bottom: 1px solid #c33200;
}
.right-fixed-video > ul li:hover .ewm-box {
  display: block;
}
.to-open-ewm {
  cursor: pointer;
}