.banner-box .system-class-icon{
    height: auto;
    background-repeat: no-repeat; /* 不重复平铺背景图片 */
    background-size: cover;
    margin-bottom: 10px;
}
.banner-content{
    width: 1200px;
    margin: auto;
}
.banner-lest-box h2{
    margin: 0;
}
.collect-box{
    display: flex;
    flex-direction: row;
    align-items: center;
    /* cursor: pointer; */
}
.banner-top {
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
}
.banner-top-right {
    display: flex;
}
.banner-top-right span {
    margin-left: 10px;
    padding: 5px 15px;
    /* width: 187px; */
    /* height: 70px; */
    border-radius: 50px;
    font-size: 10px;
    color: white;
    background-color: #1350FF;
}
.span-opct {
    opacity: 0.36;
}
.banner-video-box {
    margin-top: 10px;
    display: flex;
    padding: 20px 10px;
}
.banner-video-box-left {
    /* width: 45%; */
    flex: 1;
    margin-right: 20px;
    border-radius: 8px;
}
.banner-video-box-right {
    width: 50%;
    display: flex;
    flex-direction: column;
}
.banner-video-box-right h2 {
    /* font-size: 40px; */
    overflow: hidden;
    width: initial;
    text-wrap: nowrap;
    text-overflow: ellipsis;
    margin: 0;
    color: #146DFF;
    margin-bottom: 20px;
}
.banner-video-box-right span {
    color: #146DFF;
    font-size: 16px;
    margin-bottom: 32px;
}
.border-shadow {
    background: #FFFFFF;
    box-shadow: 0px 0px 5px 1px rgba(184,184,184,0.38);
    border-radius: 20px;
}

.banner-content-detail-message {
    padding: 10px;
    /* width: 55%; */
    flex: 1;
    margin-right: 10px;
}
.banner-content-detail-title2 {
    display: flex;
    justify-content: space-between;
}
.banner-content-detail-title2 span{
    cursor: pointer;
    display: inline-block;
    margin-right: 10px;
    height: 25px;
    font-size: 16px;
    font-weight: bold;
    color: #595959;
}
.catalogue-list {
    padding-left: 10px;
    display: flex;
    flex-direction: column;
}
.banner-content-detail-title {
    margin-top: 20px;
}
.banner-content-detail-title2 {
    margin-top: 10px;
}
.banner-content-detail-title span{
    cursor: pointer;
    display: inline-block;
    margin-right: 10px;
    height: 25px;
    font-size: 16px;
    font-weight: bold;
}
.banner-content-detail-content {
    font-size: 14px;
    /* width: 80%; */
    padding: 10px 15px;
    margin-top: 10px;
    /* background-color: #D9EEFF; */
    /* max-height: 255px; */
    /* overflow-y: auto; */
}
.banner-content-detail-content img {
    width: 400px;
    height: auto;
}
.title-active {
    color: #146DFF;
    border-bottom: 1px solid #146DFF;
    /* text-decoration-line: underline; */
}
.correlated {
    padding: 10px;
    width: 40%;
    max-height: 400px;
    overflow: hidden;
    overflow-y: auto;
}
.collect-box image{
    width: 20px;
    height: 20px;
}
.collect-box p{
    margin: 0;
    color: #FF4438;
    font-size: 22px;
    font-weight: 500;
}
.banner-lest-box{
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
    padding-top: 49px;
}
.banner-bottom p:first-child{
    font-size: 20px;
    font-weight: 500;
    color: #17233D;
    margin: 0;
    
}
.banner-bottom p:first-child{
    font-size: 20px;
    font-weight: 500;
    color: #17233D;
    margin: 0;
    margin-bottom: 32px;
    margin-top: 24px;
}
.compulsory-box{
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    margin-top: 24px;
}

.compulsory{
    width: 74px;
    height: 32px;
    background: linear-gradient(90deg, #FF7809 0%, #FF4C47 56%, #FF1069 100%);
    border-radius: 16px;
    font-size: 14px;
    font-weight: 500;
    color: #FFFFFF;
    text-align: center;
    line-height: 32px;
    margin-left: 16px;
}
.boy-right{
    width: 160px;
    height: 48px;
    /* background: linear-gradient(90deg, #FE1767 0%, #FF770E 100%); */
    border-radius: 24px;
    color: #FFFFFF;
    font-size: 16px;
    font-weight: 600;
    line-height: 48px;
    text-align: center;
   cursor: pointer;
}
/***/
.banner-content .tab {
    display: inline-block;
    padding: 10px;
    margin: 5px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    margin-top: 24px;
}

.active-tab {
    color: red;
}
/***/
.content-box{

}
.content-box h3{
    margin: 0;
    font-size: 28px;
    color: #17233D;
    margin-bottom: 24px;
}
.directory-list{
    height: 56px;
    background: #F7F9FA;
}
.kecheng-box{
    height: 1200px;
    width: 100%;
}
/**课件*/
.kejian-list{
    width: 1200px;
    margin: auto;
}
.list-box{
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    border-bottom:1px solid #E8E8E8 ;
    padding-bottom:15px;
    margin-top: 18px;
}
.left-title{
    display: flex;
    flex-direction: row;
    align-items: center;
   
}
.left-title .left-img{
    width: 26px;
    height: 26px ;
    margin-right: 12px;
}
.left-title h5{
    font-size: 14px;
    font-weight: 400;
    color: #17233D;
}
.right-down{
    width: 40px;
    font-size: 14px;
    font-weight: 400;
    color: #FF4438;
    cursor: pointer;
}
/**课成*/
.course-catalog{

}
.el-dialog{
    border-radius: 14px !important;
}
.el-dialog__body{
    padding: 0 !important;
}
.el-dialog__header{
    padding-top: 10px !important;
}
.el-dialog__headerbtn{
    top: 10px !important;
}
.prism-setting-speed {
    display: '' !important;
  }