.mainContent {
    width: 1200px;
    margin: 0 auto;
}

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

.typeBox1 {
    padding: 30px 40px;
}

.typeBox1 .types {
    display: flex;
}

.typeBox1 .types .typeTitleBox {
    margin-right: 20px;
    display: flex;
    align-items: center;
    height: 30px;
}

.typeBox1 .types .typeTitleBox .leftBorder {
    width: 3px;
    height: 14px;
    background: #2342F9;
    border-radius: 2px;
    margin-right: 10px;
}

.typeBox1 .types .typeTitleBox .typeTitle {
    width: 60px;
    font-size: 14px;
    font-family: PingFang-SC-Medium, PingFang-SC;
    font-weight: 500;
    color: #999999;
}

.typeBox1 .types .box {
    display: flex;
    flex-wrap: wrap;
}

.typeBox1 .types .box .sin {
    font-size: 14px;
    font-family: PingFang-SC-Medium, PingFang-SC;
    font-weight: 500;
    color: #333333;
    cursor: pointer;
    margin-right: 40px;
    box-sizing: border-box;
    line-height: 34px;
    margin-bottom: 10px;
}

.typeBox1 .types .box .sin.active {
    width: auto;
    height: 34px;
    background: #EDF0FF;
    border-radius: 20px;
    font-size: 14px;
    font-family: PingFang-SC-Medium, PingFang-SC;
    font-weight: 500;
    color: #2342F9;
    padding: 0px 17px;
    line-height: 34px;
}

.type_symbol_line {
    width: auto;
    height: 1px;
    background: #E9E9E9;
    margin: 20px auto;
}

.teacher_content_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%;
}

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

.teacher_content_box {
    width: 1200px;
    height: auto;
    border-radius: 5px;
    margin: 0 auto 20px;
    box-sizing: border-box;
}

.teacher_content_box .title_line {
    display: flex;
    justify-content: space-between;
}

.teacher_content_box .title_line .title {
    font-size: 20px;
    font-family: MicrosoftYaHei-Bold, MicrosoftYaHei;
    font-weight: bold;
    color: #333333;
    margin-right: 30px;
}

.teacher_content_box .title_line .title_search {
    display: flex;
    align-items: center;
}

.teacher_content_box .title_line .title_search .search_ {
    display: flex;
    align-items: center;
    width: 170px;
    height: 32px;
    background: #F5F6F9;
    border-radius: 19px;
    border: 1px solid #CCCCCC;
    padding: 7px 10px 6px 16px;
    box-sizing: border-box;
}

.teacher_content_box .title_line .title_search .search_input {
    border: none;
    width: 128px;
    background: none;
    line-height: 32px;
}

.teacher_content_box .title_line .title_search .search_icon {
    width: 16px;
    height: 16px;
    background: url('../base/images/lesson/ss_icon.png') no-repeat;
    background-size: 100% 100%;
    cursor: pointer;
}

.teacher_content_box .title_line .title_search .search_text {
    font-size: 14px;
    font-family: PingFang-SC-Medium, PingFang-SC;
    font-weight: 500;
    color: #999999;
    margin-left: 20px;
}

.teacher_list {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
}

.teacher_list .item {
    width: 590px;
    height: 200px;
    border-radius: 10px;
    margin-top: 10px;
    margin-bottom: 10px;
    background-color: #FFFFFF;
    display: flex;
}

.teacher_list .item:nth-child(2n) {
    margin-left: 20px;
}

.teacher_list .item .item_left {
    margin: 26px 30px 26px 40px;
    border-radius: 10px;
    border: 4px solid #F3F3F3;
    padding: 9px 19px;
}

.teacher_list .item .item_left img {
    width: 130px;
    height: 130px;
}

.teacher_list .item .item_right_title {
    font-size: 16px;
    color: #333333;
    margin-top: 24px;
    margin-bottom: 24px;
}

.teacher_list .item .item_right_course {
    display: flex;
}

.teacher_list .item .item_right_course1 {
    font-size: 12px;
    color: #999999;
    height: 30px;
    line-height: 30px;
}

.teacher_list .item .item_right_course2 {
    background-color: #768AFF;
    padding: 0 10px;
    color: #FFFFFF;
    border-radius: 15px;
    max-width: 200px;
    height: 30px;
    line-height: 30px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.teacher_list .item .item_right_description {
    margin-top: 24px;
    font-size: 12px;
    color: #666666;
    margin-right: 40px;
}