.mainContent {
    margin: 20px auto 0;
}

.typeBox {
    width: 1200px;
    height: auto;
    background: #FFFFFF;
    border-radius: 5px;
    margin: 0 auto 20px;
    box-sizing: border-box;
}

/* 课程信息介绍 */

.lessonInfoBox {
    padding: 40px;
}

.lessonInfoBox .titleBox {
    padding-bottom: 30px;
    border-bottom: 1px solid #E9E9E9;
}

.lessonInfoBox .titleBox .title {
    font-size: 24px;
    font-family: PingFang-SC-Bold, PingFang-SC;
    font-weight: bold;
    color: #333333;
}

.lessonInfoBox .titleBox .collect {
    margin-right: 20px;
    font-size: 14px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #333333;
    cursor: pointer;
}

.lessonInfoBox .titleBox .collect img {
    width: 16px;
    height: 16px;
    margin-right: 11px;
}

.lessonInfoBox .infoBox {
    padding-top: 30px;
}

.lessonInfoBox .infoBox .video {
    width: 660px;
    height: 480px;
    position: relative;
}

.lessonInfoBox .infoBox video {
    width: 100%;
}

.lessonInfoBox .infoBox .video_play_btn {
    width: 88px;
    height: 88px;
    position: absolute;
    top: 156px;
    left: 300px;
    background: url(../base/images/lesson/bfan.png) no-repeat;
    background-size: 100% 100%;
    cursor: pointer;
}

.lessonInfoBox .infoBox .price_operate {
    padding: 0 40px;
}

.lessonInfoBox .infoBox .price_operate .price_line {
    font-size: 16px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #999999;
}

.lessonInfoBox .infoBox .price_operate .price_line .symbol {
    font-size: 24px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #F94423;
}

.teacher_course {
    color: #F37B1D;
}

.lessonInfoBox .infoBox .price_operate .price_line .price {
    font-size: 32px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #F94423;
}

.lessonInfoBox .infoBox .price_operate .btns {
    margin-top: 30px;
}

.lessonInfoBox .infoBox .price_operate .btns .btn_free {
    width: 191px;
    height: 44px;
    border-radius: 25px;
    border: 1px solid #F37B1D;
    text-align: center;
    line-height: 44px;
    cursor: pointer;
    font-size: 18px;
    font-family: PingFangSC-Semibold, PingFang SC;
    font-weight: 600;
    color: #F37B1D;
    margin-right: 20px;
}

.lessonInfoBox .infoBox .price_operate .btns .btn_buy {
    width: 191px;
    height: 44px;
    background: #F37B1D;
    border-radius: 22px;
    text-align: center;
    line-height: 44px;
    cursor: pointer;
    font-size: 18px;
    font-family: PingFangSC-Semibold, PingFang SC;
    font-weight: 600;
    color: #FFFFFF;
}

.lessonInfoBox .infoBox .price_operate .btns .btn_buy:hover {
    opacity: 0.68;
}

.type_lessons {
    display: flex;
    flex-wrap: nowrap;
    width: 1200px;
    height: auto;
    border-radius: 5px;
    margin: 0 auto 20px;
    box-sizing: border-box;
}

.type_resource {
    width: 900px;
    height: auto;
    background: #FFFFFF;
    padding: 18px 40px 40px;
    border-radius: 5px;
}

.type_resource .type_title {
    display: flex;
    justify-content: start;
    align-items: center;
    border-bottom: 1px solid #E9E9E9;
    padding-bottom: 10px;
}

.type_resource .type_title .sin {
    min-width: 40px;
    font-size: 16px;
    font-family: MicrosoftYaHei;
    color: #333333;
    line-height: 21px;
    margin-right: 40px;
    text-align: center;
    cursor: pointer;
    position: relative;
}

.type_resource .type_title .sin.active {
    color: #F37B1D;
    font-weight: bold;
}

.type_resource .type_title .sin .bottom_line {
    width: 50%;
    height: 3px;
    background-color: #F37B1D;
    position: absolute;
    bottom: -10px;
    left: 0;
    right: 0;
    margin: 0 auto;
    display: none;
}

.type_resource .type_content {
    padding: 20px 0 20px;
    box-sizing: border-box;
    height: auto;
    font-size: 16px;
}

.type_resource .type_content .type0,
.type_resource .type_content .type1,
.type_resource .type_content .type2,
.type_resource .type_content .type3 {
    display: none;
}

.questionBox {
    height: auto;
    background: #FFFFFF;
    border-radius: 5px;
    /* border: 1px solid #E9E9E9; */
    padding: 18px 20px 18px 0;
    box-sizing: border-box;
}

.questionBox .question_list {
    box-sizing: border-box;
    padding-left: 20px;
}

.questionBox .question_listBox_title {
    display: flex;
    align-items: center;
    line-height: 30px;
    font-size: 14px;
    margin-bottom: 10px;
    padding: 16px 32px;
    border-radius: 8px;
    color: #1d2035;
}

.question_listBox_title2 {
    background-color: #f6f7f9;
}

.question_listBox_title3:hover {
    background-color: #fbfbfb;
}

.questionBox .playhover:hover {
    color: #F37B1D;
}

.questionBox .question_listBox_title .question_listBox_name {
    cursor: pointer;
    font-size: 16px;
    font-family: PingFang-SC-Bold, PingFang-SC;
    font-weight: bold;
    line-height: 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
}

.questionBox .question_listBox_title .question_listBox_text {
    font-size: 16px;
    font-family: PingFang-SC-Bold, PingFang-SC;
    font-weight: bold;
    color: #333333;
    line-height: 22px;
}

.questionBox .question_listBox_title .question_listBox_endtext {
    font-size: 13px;
    font-family: PingFang-SC-Medium, PingFang-SC;
    font-weight: 500;
    line-height: 22px;
    display: flex;
    padding-left: 23px;
    align-items: center;
    width: 85%;
}

.section-icon {
    height: 18px;
    width: 18px;
    margin-right: 5px;
}

.section-title {
    font-size: 16px;
    line-height: 26px;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sc-bottom {
    line-height: 25px;
    margin-left: 78px;
}

.sc-bottom .sc-timer {
    cursor: pointer;
    color: #767676;
    font-size: 14px;
    font-weight: 400;
}

.live-status{
    font-size: 12px;
    margin-left: 5px;
    border-radius: 4px;
    height: 20px;
    line-height: 19px;
    padding: 0 5px;
}

.live-status.unstart {
    background-color: #ecf5ff;
    border: 1px solid #d9ecff;
    color: #409eff;
}

.live-status.living {
    background-color: #f0f9eb;
    border: 1px solid #e1f3d8;;
    color: #67c23a;
}

.live-status.end {
    background-color: #f4f4f5;
    border: 1px solid #e9e9eb;
    color: #909399;
}

.live-status.playback {
    background-color: #fdf6ec;
    border: 1px solid #faecd8;
    color: #e6a23c;
}

.questionBox .question_listBox_icon {
    width: 24px;
    height: 25px;
    background: url('../../images/ml_down.png') no-repeat;
    background-size: 100% 100%;
}

.questionBox .question_listBox_icon.active {
    background: url('../../images/ml_up.png') no-repeat;
}

.questionBox .question_listBox_no {
    width: 6px;
    height: 6px;
    background: #F37B1D;
    border-radius: 50%;
    margin-right: 10px;
}

.questionBox .question_listBox_nameBox {
    width: 100%;
}

.questionBox .question_listBox_nameBox .question_listBox_progress {
    display: flex;
    align-items: center;
    font-size: 12px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #BBBBBB;
    margin: 0 26px;
}

.questionBox .question_listBox_nameBox .question_listBox_progress_bg {
    width: 320px;
    height: 10px;
    background: #F7F7F7;
    border-radius: 5px;
    position: relative;
    margin: 0 10px;
}

.questionBox .question_listBox_nameBox .question_listBox_progress_value {
    height: 10px;
    background: #F37B1D;
    border-radius: 5px;
    position: absolute;
    left: 0;
}

.questionBox .question_listBox_nameBox .question_listBox_progress .finishNum {
    font-weight: 400;
    color: #F37B1D;
}

.questionBox .question_listBox_title .startBtn {
    background: #F37B1D;
    border-radius: 16px;
    color: #fff;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    height: 32px;
    line-height: 32px;
    text-align: center;
    width: 72px;
    margin-left: -96px;
}

/* .recommond_box .content {} */

.class_sin {
    margin-top: 20px;
    background: #FFFFFF;
    width: 240px;
    padding-bottom: 24px;
    border: 1px solid #E9E9E9;
    border-radius: 8px;
}

.class_sin .class_sin_pic {
    width: 240px;
    height: 175px;
    border-radius: 10px 10px 0 0;
}

.class_sin .class_sin_pic img {
    width: 100%;
    height: 100%;
}

.class_sin .class_sin_title {
    margin: 20px 0 10px 20px;
    font-size: 16px;
    font-family: MicrosoftYaHei;
    color: #333333;
    line-height: 21px;
}

.class_sin .class_member_num {
    font-size: 12px;
    font-family: PingFang-SC-Medium, PingFang-SC;
    font-weight: 500;
    color: #999999;
    line-height: 17px;
    margin-left: 20px;
    margin-bottom: 30px;
}

.class_sin .priceBox {
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
}

.class_sin .priceBox .price {
    font-size: 20px;
    font-family: PingFangSC-Semibold, PingFang SC;
    font-weight: 600;
    color: #F94423;
    line-height: 28px;
}

.class_sin .priceBox .symbol {
    font-size: 14px;
}

.class_sin .priceBox .detail_btn {
    width: 104px;
    height: 30px;
    background: #F37B1D;
    border-radius: 16px;
    text-align: center;
    font-size: 16px;
    font-family: MicrosoftYaHei;
    color: #FFFFFF;
    line-height: 30px;
}

/* 资源列表 */

.ziyuan_list {
    /* padding: 20px; */
}

.ziyuan_list .list {
    width: 820px;
    height: auto;
    background: #FFFFFF;
    border-radius: 5px;
    border: 1px solid #E9E9E9;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 19px 16px;
    margin-bottom: 20px;
}

.ziyuan_list .list .title {
    font-size: 14px;
    font-family: PingFang-SC-Bold, PingFang-SC;
    font-weight: bold;
    color: #333333;
    margin-left: 20px;
}

.ziyuan_list .list .time {
    font-size: 12px;
    font-family: PingFang-SC-Medium, PingFang-SC;
    font-weight: 500;
    color: #999999;
    margin-right: 40px;
}

.ziyuan_list .list .free {
    color: #F37B1D;
}

.ziyuan_list .list .btn {
    width: 88px;
    height: 32px;
    background: #F37B1D;
    border-radius: 25px;
    font-size: 14px;
    font-family: PingFangSC-Semibold, PingFang SC;
    font-weight: 600;
    color: #FFFFFF;
    line-height: 32px;
    text-align: center;
    cursor: pointer;
}

.ziyuan_list .list .btn:hover {
    opacity: 0.8;
}

/* 推荐课程 */

.type_lessons .recommond_box {
    width: 280px;
    height: auto;
    background: #FFFFFF;
    margin-left: 20px;
    border-radius: 5px;
    padding: 20px;
    box-sizing: border-box;
}

.recommond_box .title {
    font-size: 18px;
    font-family: PingFang-SC-Medium, PingFang-SC;
    font-weight: 500;
    color: #333333;
    border-bottom: 1px solid #E9E9E9;
    padding-bottom: 14px;
}

.recommond_box .content .empty {
    margin: 67px auto 20px;
    width: 206px;
    height: 156px;
    background: url('../base/images/lesson/tuijian_empty.png') no-repeat;
    background-size: 100% 100%;
}

.recommond_box .content .empty_text {
    font-size: 14px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #999999;
    text-align: center;
}