.course-wrap {
    
    width: 1400px;
    height: 100%;
    color: #3D3D3D;
    padding: 0 15px;

    margin: 100px auto 180px;
    
}


.course-introduction {
    display: flex;
    justify-content: space-between;
    align-items: center;

}

.course-introduction .title {
    font-size: 30px;
    font-weight: 600;
    margin: 10px 0 16px;
    line-height: 28px;
}


.course-introduction .player-wrap {
    width: 694px;
        height: 413px;
        border-radius: 8px;
    
        background: #000;
}

.info {
    font-size: 16px;
    width: 528px;
    line-height: 28px;
    letter-spacing: 0em;

    font-variation-settings: "opsz" auto;
}


.teacher {
    color: #767676;
    font-size: 16px;
    margin-top: 28px;
}

.module .title {
    display: flex;
    justify-content: space-between;
    align-items: end;
}
.tab {
    padding-bottom: 23px;
    border-bottom: 1px solid #000000;

    margin: 51px 0 0;
}

.tab .checked {
    color: #0070C0;
}

.tab text {
    cursor: pointer;
}

.module {
    padding: 80px 0 0;
    border-bottom: 1px solid #000000;
}

.lessons-wrap {
    display: flex;
    flex-wrap: wrap;
}

.lessons-wrap .lesson {
    width: 50%;
    margin-top: 30px;
    cursor: pointer;
    padding: 0 40px 65px 0;
    box-sizing: border-box;

    border-bottom: 1px #DEDEDE solid;
}
.lesson.equal-3 {
    width: 33%;
}

.lesson img {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.lesson .info {
    width: auto;
    height: 80px;

    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    /* 可以设置为所需的行数 */
    overflow: hidden;
    text-overflow: ellipsis;
}



/* 教师团队 */
.teachTeamTab {
    padding: 70px 0;
    display: flex;
    flex-wrap: wrap;

}
.teacher-card {

    width: calc(33% - 10px);
    height: 537px;
    opacity: 1;
    background: linear-gradient(164deg, #FBFCFF 3%, #F2F6FF 86%);

    margin:0 10px 10px 0;
    box-sizing: border-box;

    padding: 40px;

    font-size: 12px;
    line-height: 20px;
    color: #3D3D3D;

    position: relative;
}
.teacher-card .titles {
    height: 80px;
    overflow: hidden;
} 


.teacher-card img {
    width: 190px;
    height: 190px;
}

.teacher-card .name {
    font-size: 30px;
    font-weight: 600;

    margin-top: 48px;
    margin-bottom: 18px;
}
.teacher-card .en-name {
    font-size: 18px;
    font-weight: 500;
}

.teacher-card .summary {

    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    /* 可以设置为所需的行数 */
    overflow: hidden;
    text-overflow: ellipsis;

    margin-top: 15px;
}

.teacher-card .detail-btn {
    position: absolute;
    bottom: 25px;
    right: 30px;

    font-family: PingFang SC;
    font-size: 14px;
    
    /* 正文色/正文辅助色 */
    color: #767676;
    cursor: pointer;
}

.teacher-card .detail-btn:hover {
    color: #0070C0;
}


.layui-layer {
    /* min-width: 62.5%;
    min-height: 67%; */
    border-radius: 12px;

    
}

.layui-layer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    
}

.teacher-detail-modal {
    font-size: 12px;
    line-height: 20px;
    color: #3D3D3D;

    width: 800px;

    padding-top: 40px;

}
.teacher-detail-modal .info {
    display: flex;
    margin-bottom: 41px;
    width: auto;

    /* margin-left: 191px; */

}
.teacher-detail-modal .name-wrap {
    font-size: 16px;
    line-height: 34px;
    flex-grow: 1;

    display: flex;
    flex-direction: column;
    justify-content: space-between;

}
.teacher-detail-modal .name {
    font-size: 36px;
    font-weight: 600;
    line-height: 40px;
    margin-bottom: 5px;
}
.teacher-detail-modal .en-name {
    font-size: 18px;
    font-weight: 500;
    line-height: 22px;

    margin-bottom: 20px;
}

.teacher-detail-modal img {
    width: 250px;
    height: 250px;

    margin-right: 69px;
}

.teacher-detail-modal .title-wrap {
    height: 160px;
    overflow: auto;
}
.teacher-detail-modal .summary {

    font-family: PingFang SC;
    font-size: 16px;
    font-weight: normal;
    line-height: 33px;

    height: 280px;
    overflow: auto;

    padding: 25px 15px 40px 0;
}
/* .teacher-detail-modal .summary:hover {
    overflow-y: auto;
} */

.teacher-detail-modal .summary-item {
    text-indent: 2em;
    margin: 10px 0;
}

/* 滚动条样式 */
.teacher-detail-modal .summary::-webkit-scrollbar,
.teacher-detail-modal .title-wrap::-webkit-scrollbar
{
    width: 5px;
}

.teacher-detail-modal .summary::-webkit-scrollbar-track,
.teacher-detail-modal .title-wrap::-webkit-scrollbar-track
 {
    background-color: #EEEFF0;
}

.teacher-detail-modal .summary::-webkit-scrollbar-thumb
.teacher-detail-modal .title-wrap::-webkit-scrollbar-thumb
{
    background: #CDD3DF;
    border-radius: 25px;
}

.teacher-detail-modal .layui-icon-close {
    position: absolute;
    top: 20px;
    right: 20px;

    cursor: pointer;
}

/* 公共样式 */
.f12 {
    font-size: 12px;
}
.f16 {
    font-size: 16px;
}
.f18 {
    font-size: 18px;
}
.f28 {
    font-size: 28px;
}
.f30 {
    font-size: 30px;
}
.f60 {
    font-size: 60px;
}

/* font-weight */
.fw-600 {
    font-weight: 600;
}

.red {
    color: #EE1E44;
    margin: 10px 0 15px;
}

/* margin */
.mgt-10 {
    margin-top: 10px;
}
.mgb-10 {
    margin-bottom: 10px;
}
.mgb-16 {
    margin-bottom: 16px;
}
.mgb-30 {
    margin-bottom: 30px;
}
.mgr-73 {
    margin-right: 73px;
}
.mgr-14 {
    margin-right: 14px;
}