.pc-edge .pc-container {
  clear: both;
  background-color: #fafafa;
}
.good-course-info-main .video_content{
    position: relative;
    margin-bottom: 15px;
    padding: 24px 32px 32px;
    background: #fff;
    box-shadow: 0 8px 16px 0 rgba(7, 17, 27, 0.1);
    border-radius: 12px;
}
.good-course-info-main .video_content video{
    width: 100%;
}
.share-dialog{
    display:none;
    position:absolute;
    top:40%;
    left:40%;
    width:350px;
    height:340px;
    z-index:99;
    text-align: center;
    background-color: #fff;
    padding:15px 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px #ccc;
}
.share-dialog h2{
    margin-top: 10px;
    margin-bottom: 10px;
    color: #d00;
}
.share-dialog .close-share{
    position: absolute;
    right: 10px;
    font-size: 13px;
    top:10px;
    cursor: pointer;
    color: #ccc;
}
.share-dialog .share-txt{
    position: absolute;
    bottom: 10px;
    width: 100%;
    text-align: center;
    color: #b27272;
    line-height: 18px;
    font-size: 13px;
    left: 0px;
}
.share-dialog .close-share:hover{
    color: #f00;
}
.share-dialog img{
    width: 300px;
    height: 260px;
    margin: 0 auto;
}
.pc-edge .pc-container .clearfix:after {
  content: "\0020";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}
.pc-edge .pc-container .l {
  float: left;
}
.pc-edge .pc-container .r {
  float: right;
}

.good-course-main-box {
  background-color: #f4f4f4;
  overflow: hidden;
}

.good-course-main-box .good-course-banner {
  width: 100%;
  height: 520px;
  background-repeat: no-repeat;
  background-position: center center;
}

.good-course-main-box .good-course-list-box {
  width: 1200px;
  margin: 0 auto;
}
.good-course-main-box .good-course-list-box .good-course-list {
  margin-left: -20px;
  padding-top: 16px;
}
.good-course-main-box .good-course-list-box .good-course-list li {
  display: inline-block;
  margin-bottom: 18px;
  width: 280px;
  cursor: pointer;
  vertical-align: top;
  border-radius: 8px;
  margin-left: 18px;
  -webkit-transition: -webkit-transform 0.3s;
  transition: -webkit-transform 0.3s;
  transition: transform 0.3s;
  transition: transform 0.3s, -webkit-transform 0.3s;
  border: 1px solid #e8e8e8;
}
.good-course-main-box .good-course-list-box .good-course-list li:hover {
  -webkit-transform: translatey(-4px);
  transform: translatey(-4px);
  border-radius: 5px 5px 0px 0px;
}
.good-course-main-box
  .good-course-list-box
  .good-course-list
  li:hover
  .img
  .cover-bg {
  opacity: 1;
}
.good-course-main-box
  .good-course-list-box
  .good-course-list
  li:hover
  .img
  .cover-bg
  .cover-tag {
  -webkit-transform: scale(1);
  transform: scale(1);
}
.good-course-main-box .good-course-list-box .good-course-list li .img {
  width: 280px;
  height: 180px;
  position: relative;
  overflow: hidden;
}
.good-course-main-box .good-course-list-box .good-course-list li .img > img {
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
  height: 180px;
  width: 280px;
  border-radius: 8px 8px 0px 0px;
}
.good-course-main-box
  .good-course-list-box
  .good-course-list
  li
  .img
  .cover-bg {
  display: block;
  opacity: 0;
  -webkit-transition: all 0.25s;
  transition: all 0.25s;
  height: 180px;
  width: 280px;
  border-radius: 5px 5px 0px 0px;
  position: absolute;
  z-index: 2;
  text-align: center;
  background-color: rgba(8, 8, 8, 0.3);
  left: 0;
  bottom: 0;
  right: 0;
  top: 0;
}

.good-course-main-box
  .good-course-list-box
  .good-course-list
  li
  .img
  .cover-bg
  .cover-tag {
  -webkit-transition: all 0.25s;
  transition: all 0.25s;
  text-align: center;
  margin-top: 60px;
  -webkit-transform: scale(1.5);
  transform: scale(1.5);
}

.good-course-main-box .good-course-list-box .good-course-list li .img > p {
  position: absolute;
  z-index: 3;
  bottom: 10px;
  right: 10px;
  background-color: rgba(0, 0, 0, 0.6);
  font-size: 14px;
  color: #fff;
  height: 18px;
  line-height: 18px;
  padding: 0px 3px;
  border-radius: 3px;
}

.good-course-main-box .good-course-list-box .good-course-list li .li-main {
  border: 1px solid transparent;
  border-top: none;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  padding: 12px 8px 12px 8px;
}

.good-course-main-box
  .good-course-list-box
  .good-course-list
  li
  .li-main
  .title
  h3 {
  display: inline-block;
  font-size: 16px;
  line-height: 16px;
  color: #181818;
  font-weight: 400;
  white-space: nowrap;
  width: 210px;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-transition: all 0.3s;
  transition: all 0.3s;
}

.good-course-main-box
  .good-course-list-box
  .good-course-list
  li
  .li-main
  .title
  span {
  font-size: 14px;
  line-height: 18px;
  color: #666666;
  float: right;
}
.good-course-main-box
  .good-course-list-box
  .good-course-list
  li
  .li-main
  .title
  span i{
      font-size: 14px;
  }

.good-course-main-box
  .good-course-list-box
  .good-course-list
  li
  .li-main
  .info {
  height: 64px;
  margin-top: 8px;
  font-size: 14px;
  line-height: 20px;
  color: #666666;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pc-container .good-course-infos {
  position: relative;
  background: linear-gradient(90deg, #d94343 0, #d34242 100%);
}

.pc-container .good-course-infos .w {
  height: 200px;
  max-width: 1152px;
  margin: 0 auto;
}
.pc-container .w {
  max-width: 1152px;
  margin: 0 auto;
}

.pc-container .good-course-infos .pr {
  position: relative;
}
.pc-container .good-course-infos .path {
  position: relative;
  z-index: 1;
  padding-top: 16px;
  padding-bottom: 24px;
  line-height: 24px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  opacity: 1;
}
.pc-container .good-course-infos .path i {
  padding: 0 5px;
}
.pc-container .good-course-infos .hd {
  clear: both;
}

.pc-container .good-course-infos h2 {
  position: relative;
  z-index: 1;
  margin-bottom: 8px;
  line-height: 48px;
  font-size: 32px;
  color: #fff;
}
.pc-container .good-course-infos .statics {
  color: #fff;
  font-size: 0;
  position: relative;
  z-index: 3;
  margin-right: 320px;
}
.pc-container .good-course-infos .statics .teacher-info {
  position: relative;
  padding-left: 56px;
  padding-right: 60px;
  line-height: 12px;
  font-size: 12px;
}
.pc-container .good-course-infos .statics .teacher-info img {
  float: left;
  margin-left: -56px;
  width: 48px;
  height: 48px;
  border-radius: 100%;
}
.pc-container .good-course-infos .statics .teacher-info .tit {
  display: block;
  margin-top: 3px;
}
.pc-container .good-course-infos .statics .teacher-info .tit a {
  font-size: 14px;
  line-height: 22px;
  font-weight: 700;
  color: #fff;
}
.pc-container .good-course-infos .statics .teacher-info .job {
  font-size: 12px;
  line-height: 18px;
}
.pc-container .good-course-infos .statics .static-item {
  display: inline-block;
  position: relative;
  margin-right: 16px;
  font-size: 12px;
  top: 15px;
}
.pc-container .good-course-infos .statics .static-item:after {
  margin-left: 16px;
  content: "·";
}
.pc-container .good-course-infos .statics .static-item:last-child:after {
  display: none;
}
.pc-container .good-course-infos .statics .static-item .meta {
  padding-right: 8px;
  line-height: 12px;
  font-size: 12px;
  font-weight: 700;
}

.pc-container .good-course-infos .extra {
  position: absolute;
  right: 0;
  top: 24px;
  z-index: 1;
}

.pc-container .good-course-infos .extra .share {
  display: inline-block;
  float: none;
  cursor: pointer;
  padding: 0;
  line-height: normal;
  margin: 0 12px;
  width: auto;
  height: auto;
  vertical-align: middle;
  background-image: none;
  background-repeat: no-repeat;
  color: rgba(255, 255, 255, 0.6);
}

.pc-container .good-course-infos .extra .share span {
  margin-left: 5px;
  font-size: 12px;
  line-height: 24px;
  float: right;
}

.pc-container .good-course-infos .extra [class*=" icon"] {
  font-family: icomoon;
  speak: none;
  font-style: normal;
  font-weight: 400;
  font-variant: normal;
  text-transform: none;
  line-height: 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 24px;
}

.pc-container .good-course-info-main {
  margin-bottom: 40px;
}
.pc-container .good-course-info-main .content-wrap {
  padding-right: 352px;
  margin-bottom: 29px;
  overflow: visible;
}
.pc-container .good-course-info-main .content {
  float: left;
  padding-top: 10px;
  width: 100%;
}
.pc-container .good-course-info-main .course-description {
  font-size: 14px;
  line-height: 28px;
  white-space: pre-line;
}
.pc-container .good-course-info-main .course-wrap {
  margin-bottom: 8px;
  padding: 24px 32px 32px;
  background: #fff;
  box-shadow: 0 8px 16px 0 rgba(7, 17, 27, 0.1);
  border-radius: 12px;
}

.pc-container .good-course-info-main .course-chapters .chapter h3 {
  color: #1c1f21;
  font-size: 16px;
  font-weight: 700;
  line-height: 24px;
}

.pc-container
  .good-course-info-main
  .course-chapters
  .chapter
  .chapter-description {
  margin-top: 2px;
  font-size: 12px;
  color: #545c63;
  line-height: 18px;
}
.pc-container .good-course-info-main .course-chapters .chapter .video {
  padding-top: 16px;
}
.pc-container .good-course-info-main .course-chapters .chapter .video li {
  position: relative;
  padding-left: 12px;
  height: 48px;
  line-height: 48px;
  list-style: none;
}

.pc-container .good-course-info-main .course-chapters .chapter .video li a {
  color: #1c1f21;
  display: block;
  overflow: hidden;
  word-break: break-all;
  display: -webkit-box;
  display: -moz-box;
  display: -webkit-flex;
  display: -moz-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
  font-size: 14px;
  line-height: 48px;
}
.pc-container
  .good-course-info-main
  .course-chapters
  .chapter
  .video
  li
  a
  .preview-btn {
  display: none;
  margin: 12px;
  height: 24px;
  padding: 0 12px;
  font-size: 12px;
}
.pc-container
  .good-course-info-main
  .course-chapters
  .chapter
  .video
  li
  a:hover
  .preview-btn {
  display: block;
}
.pc-container .good-course-info-main .course-chapters .chapter .video li:hover {
  background: rgba(242, 13, 13, 0.05);
  border-radius: 4px;
  color: #d94343;
}
.pc-container
  .good-course-info-main
  .course-chapters
  .chapter
  .video
  li
  a:hover {
  color: #d94343;
}
.pc-container
  .good-course-info-main
  .course-chapters
  .chapter
  .video
  li
  a:hover
  i {
  color: #d94343;
}
.pc-container
  .good-course-info-main
  .course-chapters
  .chapter
  .video
  li
  a
  .type {
  font-size: 16px;
  color: #1c1f21;
  line-height: 48px;
  margin-right: 8px;
}

.pc-container
  .good-course-info-main
  .course-chapters
  .chapter
  .video
  li
  a
  .type-text {
  font-style: normal;
  font-weight: 700;
  font-size: 14px;
  line-height: 48px;
  margin-right: 4px;
}

.pc-container
  .good-course-info-main
  .course-chapters
  .chapter
  .video
  li
  a
  button {
  position: relative;
  right: -12px;
}
.pc-container .good-course-info-main .aside {
  margin-top: -84px;
  margin-right: -352px;
  width: 320px;
  position: relative;
  z-index: 2;
}

.pc-container .good-course-info-main .aside .course-aside-info {
  margin-bottom: 32px;
  min-height: 240px;
  position: relative;
  z-index: 901;
}
.pc-container .good-course-info-main .aside .course-aside-info .learn-btn a {
  display: block;
}
.pc-container .course-btn {
  position: relative;
  display: inline-block;
  margin-bottom: 0;
  text-align: center;
  vertical-align: middle;
  touch-action: manipulation;
  text-decoration: none;
  box-sizing: border-box;
  background-image: none;
  border-radius: 0;
  -webkit-appearance: none;
  white-space: nowrap;
  outline: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  border-style: solid;
  border-width: 1px;
  cursor: pointer;
  -weibkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
  color: #545c63;
  background-color: transparent;
  border-color: #9199a1;
  opacity: 1;
  padding: 7px 16px;
  font-size: 14px;
  line-height: 1.42857143;
  border-radius: 18px;
}
.pc-container .course-btn-lg {
  padding: 11px 32px;
  font-size: 16px;
  line-height: 24px;
  border-radius: 24px;
}
.pc-container .course-btn-red {
  border-style: solid;
  border-width: 1px;
  cursor: pointer;
  -weibkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
  color: #fff;
  background-color: #d94343;
  border-color: #d94343;
  opacity: 1;
}
.pc-container .course-btn-red:hover {
  color: #fff;
  border-color: #c20a0a;
  background: #c20a0a;
  opacity: 1;
}

.pc-container .good-course-info-main .aside .course-info-tip {
  padding-top: 24px;
}
.pc-container .good-course-info-main .aside .course-info-tip dl.first {
  margin-bottom: 24px;
}

.pc-container .good-course-info-main .aside .course-info-tip dt {
  margin-bottom: 6px;
  font-weight: 700;
  font-size: 14px;
}

.pc-container .good-course-info-main .aside .course-info-tip dd {
  font-size: 12px;
  line-height: 24px;
  color: #545c63;
  white-space: pre-line;
}

.pc-container .good-course-info-main .autowrap {
  word-wrap: break-word;
  word-break: break-all;
}

.pc-container .good-course-info-main .aside-ad {
  max-height: 160px;
  min-height: 60px;
  width: 100%;
  overflow: hidden;
  margin: -8px 0 24px;
  cursor: pointer;
  position: relative;
  z-index: 899;
  display: none;
  line-height: 0;
  border-radius: 12px;
}
.pc-container .good-course-info-main .aside-ad img {
  width: 100%;
}

.pc-container .good-course-info-main .mb40 {
  margin-bottom: 40px;
}
.pc-container .good-course-info-main .aside .related-course {
  box-sizing: border-box;
}

.pc-container .good-course-info-main .aside h4 {
  font-weight: 700;
  font-size: 14px;
}
.pc-container .good-course-info-main .aside .related-course h4 {
  margin-bottom: 12px;
}

.pc-container .good-course-info-main .aside .related-course li {
  margin-bottom: 8px;
}
.pc-container
  .good-course-info-main
  .aside
  .related-course
  li
  .aside-course-img {
  float: left;
  width: 80px;
  height: 60px;
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}
.pc-container
  .good-course-info-main
  .aside
  .related-course
  li
  .aside-course-img
  img {
  width: 80px;
  height: 60px;
  border-radius: 6px;
}
.pc-container
  .good-course-info-main
  .aside
  .related-course
  li
  .aside-course-content {
  margin-left: 96px;
  height: 67px;
  position: relative;
  box-sizing: border-box;
  font-size: 12px;
  color: #545c63;
  line-height: 18px;
  border-bottom: 1px solid rgba(43, 51, 59, 0.1);
}
.pc-container
  .good-course-info-main
  .aside
  .related-course
  li
  .aside-course-content
  a.aside-course-name {
  padding-top: 8px;
  font-size: 14px;
  height: 22px;
  line-height: 22px;
  margin-bottom: 4px;
  cursor: pointer;
  color: #545c63;
  background: #f8fafc;
  -webkit-transition: all 0.3s;
  -moz-transition: all 0.3s;
  transition: all 0.3s;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pc-container .moco-aside-course {
  background: #f8fafc;
}

.pc-container .course-video-study {
  display: flex;
  display: -webkit-flex;
  position: relative;
  zindex: 1;
}
.pc-container .course-video-layout {
  position: relative;
  flex: 1;
  background-color: #1c1f21;
}

.pc-container .course-video-content {
  width: 100%;
  height: 600px;
  padding-top: 16px;
  padding-bottom: 16px;
  box-sizing: border-box;
}

.pc-container .course-video-box {
  position: relative;
  margin: 0 auto;
  height: 100%;
  background: #0e1011;
  box-shadow: 0 8px 16px 0 rgba(14, 16, 17, 0.8);
  overflow: hidden;
}

.pc-container .course-sider-layout {
  position: relative;
  width: 60px;
  height: 600px;
  z-index: 998;
  background-color: #1c1f21;
  display: -webkit-flex;
  align-items: center;
}
.pc-container .course-sider-layout dl {
  flex: 1;
  width: 100%;
}
.pc-container .course-sider-layout dd {
  display: flex;
  display: -webkit-flex;
  height: 72px;
  flex-direction: column;
  text-align: center;
  justify-content: center;
  cursor: pointer;
}
.pc-container .course-sider-layout dd.active,
.pc-container .course-sider-layout dd:hover {
  background: #26292c;
}
.pc-container .course-sider-layout i {
  font-size: 24px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 24px;
}
.pc-container .course-sider-layout span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.4);
  line-height: 18px;
}

.pc-container .video-list {
  position: absolute;
  left: -400px;
  top: 0;
  bottom: 0;
  width: 460px;
  background: #26292c;
  /* box-shadow: 0 8px 16px 0 #1c1f21; */
  z-index: 996;
  transition: 0.3s all linear;
  opacity: 0;
  padding: 8px 0;
  box-sizing: border-box;
}

.pc-container .video-list.active {
  left: 60px;
  opacity: 1;
}

.pc-container .has-scrollbar {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.pc-container .has-scrollbar .chapter-list {
  position: absolute;
  overflow: scroll;
  overflow-x: hidden;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  padding-bottom: 20px;
}

.pc-container .video-list {
  padding: 0 24px;
}
.pc-container .video-list .vid-title {
  padding-top: 20px;
  font-size: 14px;
  color: #fff;
  line-height: 22px;
  margin-bottom: 8px;
}

.pc-container .video-list .vid-li {
  height: 30px;
}

.pc-container .video-list .vid-li a {
  padding: 6px 0 6px 62px;
  width: 100%;
  height: 30px;
  box-sizing: border-box;
  overflow: hidden;
  display: block;
  position: relative;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 20px;
}
.pc-container .video-list .vid-li em {
  position: absolute;
  left: 8px;
  top: 6px;
  font-size: 16px;
  line-height: 18px;
}

.pc-container .video-list .vid-li .type-text {
  position: absolute;
  left: 28px;
  top: 6px;
  line-height: 18px;
}
.pc-container .video-list .vid-li .video-title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 200px;
    display: inline-block;
}
.pc-container .video-list .vid-li .video-timer {
    display: inline-block;
    overflow: hidden;
    line-height: 18px;
}

.pc-container .video-list .vid-li i,
.pc-container .video-list .vid-li i span {
  float: right;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.2);
  line-height: 20px;
}

.pc-container .video-list .vid-li i.icon-icon_status-half-dot,
.pc-container .video-list .vid-li i.icon-circle-full,
.pc-container .video-list .vid-li span.icon-jinhangzhong1 {
  color: rgba(242, 13, 13, 0.6);
}

.pc-container .video-list .vid-li .current {
  color: rgba(242, 13, 13, 0.6);
}

.pc-container .video-list .vid-li i span {
  margin-left: 8px;
}
.study-com-right{
    display: none;
}
.study-com-right .study_head_pf_index_left{
    display: none;
}
.bottom-contact-form-n{
    display: none;
}
.rightKfBtnStudy{
    background: url(https://m.kleaningk9s.com/wimg/images/home/head_foot/indexRightBtn.png) no-repeat;
    right: 0;
    left: auto;
    bottom: 28%;
    top: auto;
}