.container{
    font-family: PingFang SC, PingFang SC;
    color: #000000;
}
.color-primary{
    color: #FF6903;
}
.color-primary2{
    color: #009BF8;
}
.cursor-pointer{
    cursor: pointer;
}
.font-bold{
    font-weight: bolder;
}
.left{
    width: 783px;
}
.left .left-item{
    margin-top: 16px;
}
.player-wrap{
    height: 436px;
    font-size: 14px;
    color: #ffffff;
}
.player-wrap .player-wrap-background-container {
    position: relative; /* 使伪元素相对于父容器定位 */
    background-size: cover;
    background-position: center;
    padding-bottom: 25px;
}

.player-wrap .player-wrap-background-container::before {
    content: ''; /* 伪元素内容为空 */
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* 设置蒙层颜色和透明度 */
    z-index: 1; /* 确保伪元素在内容后面 */
}
.player-wrap .no-auth{
    background: #000000;
    border-radius: 6px 6px 6px 6px;
    padding: 5px 15px;
    position: relative;
    z-index: 2;
}
.no-auth-three-minutes{
    background: #000000;
    border-radius: 6px 6px 6px 6px;
    padding: 8px 9px;
    /*position: absolute;*/
    /*z-index: 2;*/
    /*bottom: 40px;*/
    flex-wrap: wrap;
    margin-top: 10px;
    color: #ffffff;
    font-size: 13px;
    letter-spacing: 0.5px;
}
.video-title{
    font-weight: 500;
    font-size: 20px;
    line-height: 23px;
}
.cate-wrap{
    font-weight: 400;
}
.cate-item{
    padding: 7px 16px 8px 16px;
    background: #F4F4F4;
    border-radius: 4px 4px 4px 4px;
    font-size: 12px;
    line-height: 14px;
    margin-right: 8px;
}
.cate-wrap .show-common-problem{
    font-size: 15px;
    color: #009BF8;
    opacity: 0.75;
    cursor: pointer;
}
.video-common-problem{
    padding: 15px 20px 20px 20px;
}
.video-common-problem .video-common-problem-title{
    margin-top: 20px;
}
.video-common-problem .video-common-problem-content{
    margin-top: 5px;
}
.teacher-avatar img{
    border-radius: 50%;
}
.teacher-name{
    margin-left: 8px;
    font-size: 14px;
    line-height: 16px;
}
.teacher-op{
    font-size: 16px;
    color: #000000;
    font-weight: 500;
}
.teacher-op img{
    width: 24px;
    height: 24px;
}
.teacher-op .collect-btn img{
    width: 20px;
    height: 20px;
}
.teacher-op .collect-btn{
    margin-left: 8px;

}
.teacher-op .up-and-down{
    background: #FFFFFF;
    border-radius: 100px 100px 100px 100px;
    border: 1px solid #CCCCCC;
    padding: 8px 18px 8px 26px;
}
.teacher-op .collect-btn{
    cursor: pointer;
    margin-left: 8px;
    background: #FFFFFF;
    border-radius: 100px 100px 100px 100px;
    border: 1px solid #CCCCCC;
    padding: 8px 16px 9px 16px;
}
.teacher-op .up-btn, .teacher-op .down-btn{
    cursor: pointer;
}
.video-desc{
    background: #F4F4F4;
    border-radius: 4px 4px 4px 4px;
    padding: 16px;
}
.video-desc .course-remark{
    font-weight: 400;
    font-size: 14px;
    color: #666666;
    line-height: 16px;
    text-align: left;
    font-style: normal;
    text-transform: none;
    word-break: break-all;
}
.video-desc .view-and-date{
    font-size: 14px;
    line-height: 16px;
}
.video-desc .desc-body{
    margin-top: 8px;
    font-size: 14px;
    color: #666666;
    line-height: 16px;
}
.pub-comment-wrap{
    margin-top: 24px;
}
.pub-comment-wrap .comment-count-num{
    font-weight: 500;
    font-size: 20px;
}
.pub-comment-wrap .comment-sort{
    font-size: 14px;
    color: #666666;
}
.pub-comment-wrap .comment-sort-item{
    margin-right: 16px;
}
.pub-comment-wrap .pub-textarea{
    margin-top: 16px;
}
.pub-textarea .btn-wrap{
    margin-top: 8px;
}
.pub-textarea button{
    color: #FFFFFF;
    border: 0;
    width: 88px;
    height: 40px;
    background: #009BF8;
    border-radius: 4px 4px 4px 4px;
    font-size: 14px;
    line-height: 16px;
}
.question-list-wrap{
    margin-top: 6px;
}

.right{
    flex: 1;
}