.mainContent {
    margin-top: 20px;
}

/* 分类导航框 */

.typeNavBox {
    width: 1200px;
    display: flex;
    flex-wrap: nowrap;
    margin: 0 auto;
    position: relative;
}

.typeNavBox .leftBox {
    width: 340px;
    height: 531px;
    background: #FFFFFF;
    border: 3px solid #FFC99E;
    /*border-left: none;*/
    /*border-right: none;*/
    box-sizing: border-box;
    z-index: 2;
}

.typeNavBox .leftBox .left_sin {
    width: 100%;
    height: 65px;
    /*border-right: 3px solid #FFC99E;*/
    /*border-left: 3px solid #FFC99E;*/
    cursor: pointer;
    box-sizing: border-box;
}

.typeNavBox .leftBox .left_sin .left_sin_title {
    font-size: 16px;
    font-family: MicrosoftYaHei-Bold, MicrosoftYaHei;
    font-weight: bold;
    color: #333333;
    line-height: 16px;
    padding-top: 14px;
    margin-left: 20px;
    display: flex;
}

.typeNavBox .leftBox .left_sin .left_sin_title_before {
    width: 4px;
    height: 16px;
    background: #F37B1D;
    border-radius: 2px;
    margin-right: 6px;
    display: none;
}

.typeNavBox .leftBox .left_sin .left_sin_tip {
    font-size: 14px;
    font-family: MicrosoftYaHei;
    color: #999999;
    line-height: 30px;
    margin-left: 20px;
}

.typeNavBox .rightBox {
    width: 850px;
    height: 531px;
    background: #FFFFFF;
    padding: 20px;
    box-sizing: border-box;
    margin-left: 10px;
    position: relative;
}

.typeNavBox .rightBox .titleBox {
    border-bottom: 1px solid #E9E9E9;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.typeNavBox .rightBox .titleBox .navMenu {
    display: flex;
    justify-content: start;
    align-items: center;
    padding-bottom: 10px;
}

.typeNavBox .rightBox .titleBox .navMenu .sin {
    min-width: 40px;
    font-size: 16px;
    font-family: MicrosoftYaHei;
    color: #333333;
    line-height: 40px;
    margin-right: 40px;
    text-align: center;
    padding: 0 40px;
    position: relative;
}

.typeNavBox .rightBox .titleBox .navMenu .sin.active {
    color: #F37B1D;
    font-weight: bold;
}

.typeNavBox .rightBox .titleBox .navMenu .sin .ball {
    width: 30px;
    height: 30px;
    background: #F0F2FF;
    position: absolute;
    top: 5px;
    right: 25px;
    border-radius: 50%;
    opacity: 0.6;
    display: none;
}

.typeNavBox .rightBox .titleBox .navMenu .sin .bottom_line {
    width: 36px;
    height: 4px;
    background: #F37B1D;
    border-radius: 3px;
    background-color: #F37B1D;
    position: absolute;
    bottom: -10px;
    left: 0;
    right: 0;
    margin: 0 auto;
    display: none;
}

.typeNavBox .rightBox .titleBox .more {
    font-size: 14px;
    font-family: PingFangSC-Regular, PingFang SC;
    font-weight: 400;
    color: #999999;
    line-height: 20px;
}

.typeNavBox .rightBox .rightContent {
    display: flex;
    flex-wrap: nowrap;
}

.typeNavBox .rightBox .rightContent .imageBox {
    width: 341px;
}

.typeNavBox .rightBox .rightContent .imageBox .image:last-child {
    margin-bottom: 0;
    margin-top: 0;
}

.typeNavBox .rightBox .rightContent .imageBox .image {
    width: 341px;
    height: 206px;
    background: #D8D8D8;
    border-radius: 5px;
    margin-bottom: 14px;
    margin-top: 20px;
}

.typeNavBox .rightBox .rightContent .linkBox {
    padding-left: 10px;
    padding-top: 20px;
    width: 100%;
}

.typeNavBox .rightBox .rightContent .linkBox .link:last-child {
    margin-bottom: 0px;
}

.typeNavBox .rightBox .rightContent .linkBox .link {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    margin-bottom: 30px;
}

.typeNavBox .rightBox .rightContent .linkBox .link_title {
    font-size: 14px;
    font-family: MicrosoftYaHei;
    color: #333333;
    line-height: 19px;
    display: flex;
    align-items: center;
}

.typeNavBox .rightBox .rightContent .linkBox .link_title img {
    margin-right: 20px;
    width: 12px;
    height: 12px;
}

.typeNavBox .rightBox .rightContent .linkBox .link_title .text {
    min-width: 200px;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: keep-all;
}

.typeNavBox .rightBox .rightContent .linkBox .link_date {
    font-size: 14px;
    font-family: MicrosoftYaHei;
    color: #999999;
    line-height: 19px;
}

.typeNavBox .hoverBox {
    position: absolute;
    left: 337px;
    top: 0;
    width: 863px;
    height: 531px;
    background: #F8F9FF;
    border: 3px solid #FFC99E;
    box-sizing: border-box;
    z-index: 1;
    background-size: cover;
    display: none;
}

.typeNavBox .hoverBox .haverMainBox {
    background: url('./images/indexPage/type_hover_bg.png') no-repeat;
    width: 100%;
    height: 100%;
    background-position: 100% 100%;
}

.typeNavBox .hoverBox .titleBox {
    height: 60px;
    border-bottom: 1px solid #E9E9E9;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-left: 60px;
    padding-right: 19px;
}

.typeNavBox .hoverBox .titleBox .icon {
    width: 28px;
    height: 28px;
    margin-right: 9px;
}

.typeNavBox .hoverBox .titleBox .title_text {
    font-size: 16px;
    font-family: MicrosoftYaHei-Bold, MicrosoftYaHei;
    font-weight: bold;
    color: #333333;
    line-height: 21px;
}

.typeNavBox .hoverBox .hoverContent {
    display: flex;
    flex-wrap: wrap;
    justify-content: start;
    padding-left: 60px;
    padding-right: 19px;
}

.typeNavBox .hoverBox .hoverContent .hover_menu:hover {
    color: #F37B1D;
}

.typeNavBox .hoverBox .hoverContent .hover_menu {
    z-index: 3;
    font-size: 14px;
    font-family: MicrosoftYaHei;
    color: #333333;
    line-height: 19px;
    cursor: pointer;
    min-width: 20%;
    text-align: left;
    margin: 20px 0;
}

/* 课程列表 */

.classBox {
    width: 1200px;
    margin: 42px auto;
}

.classBox .classTitleBox {
    display: flex;
    justify-content: start;
    align-items: center;
    margin-bottom: 30px;
}

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

.classBox .classTitleBox .sin.active {
    position: relative;
    color: #F37B1D;
    font-weight: bold;
}

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

.classBox .classContent {
    display: flex;
}

.classBox .classContent .content_left {
    display: flex;
    flex-wrap: wrap;
    width: 1200px;
    /*margin-right: 15px;*/
}

.classBox .classContent .content_left .theme_pic {
    width: 582px;
    height: 313px;
    border-radius: 10px;
    margin-right: 20px;
}

.classBox .classContent .content_left .theme_pic img {
    width: 100%;
    height: 100%;
}

.classBox .classContent .class_sin {
    margin-top: 20px;
    margin-right: 20px;
    background: #FFFFFF;
    width: 280px;
    padding-bottom: 29px;
    /*height: 361.5px;*/
}

.classBox .classContent .class_sin:nth-child(4) {
    margin-right: 0;
}

.classBox .classContent .class_sin:nth-child(8) {
    margin-right: 0;
}

.classBox .classContent .content_left .class_sin .class_sin_pic {
    width: 285px;
    height: 208px;
    border-radius: 10px 10px 0 0;
}

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

.classBox .classContent .content_left .class_sin .class_sin_title {
    margin: 20px 20px 10px 20px;
    font-size: 16px;
    font-family: MicrosoftYaHei;
    color: #333333;
    line-height: 21px;
    height: 21px;
    overflow: hidden;
}

.classBox .classContent .content_left .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;
}

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

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

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

.classBox .classContent .content_left .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;
}

.classBox .classContent .content_right {
    display: flex;
    flex-wrap: wrap;
    width: 296px;
}

.classBox .classContent .content_right .funcs {
    width: 100%;
    height: 214px;
    background: #FFFFFF;
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
}

.classBox .classContent .content_right .funcs .func {
    width: 33.3%;
    cursor: pointer;
}

.classBox .classContent .content_right .funcs .func .icon {
    width: 48px;
    height: 48px;
    margin: 20px auto 10px;
}

.classBox .classContent .content_right .funcs .func .title {
    font-size: 14px;
    font-family: MicrosoftYaHei;
    color: #666666;
    line-height: 15px;
    text-align: center;
}

.classBox .classContent .content_right .dataBox {
    width: 100%;
    background: #FFFFFF;
    overflow-y: auto;
}

.classBox .classContent .content_right .dataBox .dataTitleBox {
    display: flex;
    justify-content: start;
    align-items: center;
    margin-bottom: 30px;
}

.classBox .classContent .content_right .dataBox .dataTitleBox .sin {
    height: 55px;
    min-width: 98px;
    font-size: 16px;
    font-family: MicrosoftYaHei;
    color: #333333;
    line-height: 21px;
    text-align: center;
    cursor: pointer;
    line-height: 55px;
}

.classBox .classContent .content_right .dataBox .dataTitleBox .sin.active {
    position: relative;
    color: #F37B1D;
    font-weight: bold;
}

.classBox .classContent .content_right .dataBox .dataTitleBox .sin .bottom_line {
    width: 50%;
    height: 3px;
    background-color: #F37B1D;
    position: absolute;
    bottom: 0px;
    left: 0;
    right: 0;
    margin: 0 auto;
    display: none;
}

.classBox .classContent .content_right .dataBox .data_sin {
    margin: 24px 19px 0;
    display: flex;
    cursor: pointer;
}

.classBox .classContent .content_right .dataBox .data_sin:nth-child(1) .num_box {
    background: #F94423;
}

.classBox .classContent .content_right .dataBox .data_sin:nth-child(2) .num_box {
    background: #F9B023;
}

.classBox .classContent .content_right .dataBox .data_sin:nth-child(3) .num_box {
    background: #F37B1D;
}

.classBox .classContent .content_right .dataBox .data_sin .num_box {
    width: 18px;
    height: 18px;
    background: #BBBBBB;
    border-radius: 2px;
    text-align: center;
    font-size: 12px;
    font-family: MicrosoftYaHei;
    color: #FFFFFF;
    line-height: 18px;
    margin-right: 10px;
}

.classBox .classContent .content_right .dataBox .data_sin .text {
    width: 236px;
    height: 19px;
    font-size: 14px;
    font-family: MicrosoftYaHei;
    color: #666666;
    line-height: 19px;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 悬浮框 */

.fixedBox {
    width: 60px;
    height: auto;
    position: fixed;
    top: 30%;
    right: 0;
    z-index: 999;
    box-sizing: border-box;
}

.fixedBox .sin:nth-child(1) {
    /*border-radius: 20px 0 0 0;*/
}

.fixedBox .sin:nth-child(5) {
    border-radius: 0 0 0 20px;
}

.fixedBox .sin {
    background-color: #FFFFFF;
    width: 60px;
    height: 60px;
    display: flex;
    flex-wrap: wrap;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-bottom: 1px solid #f6f6f6;
    box-sizing: border-box;
    text-align: center;
    position: relative;
    color: #999999;
}

.fixedBox .sin:hover {
    color: #ffffff;
    background-color: #F37B1D;
}

/* .fixedBox .sin.active {
    background: #F37B1D;
} */

.fixedBox .infoBox {
    position: absolute;
    left: -130px;
    top: 0;
    background: #FFFFFF;
    box-shadow: 0px 0px 16px 0px rgba(0, 0, 0, 0.08);
    border-radius: 10px;
    display: none;
    padding: 20px 18px;
    font-size: 14px;
    font-family: MicrosoftYaHei;
    color: #333333;
    line-height: 19px;
}

.fixedBox .sin .icon {
    width: 18px;
    height: 18px;
    display: block;
    margin-bottom: 3px;
}

.fixedBox .sin .text {
    font-size: 10px;
    font-family: MicrosoftYaHei;
    line-height: 14px;
}

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

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

.teacher_content_title_left {
    font-size: 20px;
    font-weight: bold;
    color: #333333;
}

.teacher_content_title_right {
    font-size: 16px;
    color: #666666;
}

.teacher_content_item_list {
    display: flex;
    justify-content: space-between;
    margin-top: 50px;
    margin-bottom: 50px;
}

.teacher_content_item {
    width: 386px;
    height: 194px;
    background-image: url("../images/teacher_bg.png");
    display: flex;
}

.teacher_content_item_left {
    margin: 32px 20px;
}

.teacher_content_item_left img {
    width: 130px;
    height: 130px;
}

.teacher_content_item_right {
    margin-top: 35px;
    margin-bottom: 27px;
}

.teacher_content_item_right_title {
    font-size: 18px;
    color: #333333;
}

.teacher_content_item_right_course {
    display: inline-block;
    background-color: #FE9905;
    color: #FFFFFF;
    border-radius: 15px;
    padding: 5px 10px;
    font-size: 12px;
    margin-top: 10px;
    margin-bottom: 20px;
}

.teacher_content_item_right_description {
    font-size: 12px;
    color: #999999;
    padding-right: 20px;
}