.teacher_tab_content {
    width: 100%;
    height: 60px;
    background: white;
}

.tab_list {
    width: 1200px;
    height: 60px;
    margin: 0 auto;
}

.teacher_tab {
    float: left;
    height: 60px;
    line-height: 60px;
    margin-right: 68px;
    font-size: 16px;
    cursor: pointer;
    color: #999999;
}

.teacher_tab_active {
    color: #000000;
    border-bottom: 2px solid #FFD200;
}

.teacher_list {
    width: 1200px;
    margin: 0 auto 200px;
}

.teacher_item {
    width: 49%;
    padding: 20px;
    background: #FFFFFF;
    margin-top: 20px;
    float: left;
    border-radius: 4px;
}

.teacher_item:nth-child(odd) {
    margin-right: 2%;
}

.teacher_info {
    position: relative;
}

.teacher_head {
    float: left;
    width: 96px;
    height: 96px;
    position: relative;
}

.head_icon {
    width: 96px;
    height: 96px;
    border-radius: 80px;
    object-fit: cover;
}

.status_icon {
    position: absolute;
    bottom: 0;
    right: 9px;
}

.right_info {
    width: 77%;
    float: right;
    height: 96px;
    border-bottom: 2px solid #f2f2f2;
}

.right_item {
    float: left;
    margin-top: 23px;
}

.follow_btn:hover {
    border: 0;
    color: #000000;
    background: #FFDE00;
}

.win_follow {
    position: absolute;
    background: #FFFFFF;
    text-align: center;
    width: 155px;
    height: 197px;
    padding-top: 25px;
    border-radius: 6px;
    box-shadow: 0 2px 30px 0 rgb(4 0 0 / 10%);
}

.win_follow:after, .arrow_box:before {
    top: 100%;
    left: 50%;
    border: solid transparent;
    content: " ";
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;
}

.win_follow:after {
    /*border-color: #88b7d5;*/
    border-top-color: #FFFFFF;
    /*border-top-color: #88b7d5;*/
    border-width: 15px;
    margin-left: -15px;

}
.win_content{
    position: absolute;
    top: -220px;
    left: -29px;
    text-align: center;
    width: 155px;
    height: 229px;
}

.teacher_desc2{
    width: 205px
}


.text_two_line{
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.win_follow:before {
    border-color: rgba(191, 245, 198, 0);
    border-width: 36px;
    margin-left: -36px;

}
.follow_btn_active {
    border: 0 !important;
    color: #000000 !important;
    background: #FFDE00;
}


.follow_btn {
    width: 90px;
    text-align: center;
    height: 30px;
    line-height: 30px;
    color: #BBBBBB;
    cursor: pointer;
    margin: 20px auto;
    border: 1px solid #BBBBBB;
    border-radius: 4px;
}

.teacher_name {
    font-size: 20px;
    color: #000000;
    font-weight: bold;
    cursor: pointer;
}

.teacher_item:hover .teacher_name {
    color: #FFD200;
}

.teacher_desc {
    max-height: 32px;
    font-size: 12px;
    color: #999999;
    margin-top: 4px;
    overflow: hidden;
}

.course_list {
    width: 100%;
    margin-top: 30px;
}

.course_item {
    width: 176px;
    height: 107px;
    float: left;
    cursor: pointer;
    margin-left: 10px;
    border-radius: 4px;
    overflow: hidden;
}

.course_item_cover {
    width: 100%;
    height: 100%;
    background: url('https://sjhome-video-new.oss-cn-shenzhen.aliyuncs.com/upload-file/cover/1561456627516.jpg?x-oss-process=image%2Fresize%2Cw_510&OSSAccessKeyId=LTAI5t6ouKHUQogyjLdkVfeQ&Expires=1639214263&Signature=9z%2FsrZB%2B2EjXwUiSpZOvbPLI6P8%3D');
    background-position: center;
    background-size: contain;
    -webkit-transition: all 1s;
    -moz-transition: all 1s;
    -o-transition: all 1s;
    transition: all 1s;
}

.course_item:hover .course_item_cover {
    -webkit-transform: scale(1.1);
    -moz-transform: scale(1.1);
    -o-transform: scale(1.1);
    transform: scale(1.1);
    -ms-transform: scale(1.1);
}

.course_item:first-child {
    margin-left: 0;
}

@media screen and (min-width: 1600px) {
    .tab_list {
        width: 1380px;
    }

    .teacher_list {
        width: 1380px;
    }

    .right_info {
        width: 81%;
    }

    .course_item {
        width: 205px;
        height: 124px;
    }
    .teacher_desc2{
        width: 290px
    }
}