/* 横向-start */

@media screen and (min-width:1500px) {
    #public_course_list .item {
        /* background-color: red; */
    }
    /* 课程列表 */
    #public_course_list .item:nth-of-type(5n) {
        margin-right: 0!important;
    }
    #public_course_list .item:nth-of-type(-n + 5) {
        margin-top: 0!important;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(5n) {
        margin-right: 2%!important;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(6n) {
        margin-right: 0!important;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(-n + 6) {
        margin-top: 0!important;
    }
    /* 教师列表 */
    #public_teacher_list .item {
        height: auto;
    }
    #public_teacher_list .item:nth-of-type(5n) {
        /* margin-right: 0 !important; */
    }
    #public_teacher_list .item:nth-of-type(-n + 5) {
        margin-top: 0;
    }
    #public_teacher_list.public_teacher_list_6 .item:nth-of-type(5n) {
        margin-right: 2%;
    }
    #public_teacher_list.public_teacher_list_6 .item:nth-of-type(6n) {
        margin-right: 0;
    }
    #public_teacher_list.public_teacher_list_6 .item:nth-of-type(-n + 6) {
        margin-top: 0;
    }
    /* 课程-所有类别 */
    #course_all #public_main .category_list li:nth-of-type(5n) {
        margin-right: 0!important;
    }
    #course_all #public_main .category_list li:nth-of-type(-n + 5) {
        margin-top: 0;
    }
}
@media screen and (min-width:1500px) and (max-width:1700px) {
    /* .index #public_teacher_list .item{
        width: 23.8% !important;
    }
    .index #public_teacher_list .item:nth-of-type(4n) {
        margin-right: 0;
    }
    .index #public_teacher_list .item:nth-of-type(-n + 4) {
        margin-top: 0;
    }
    .index #public_teacher_list .item:nth-of-type(5n) {
        margin-right: 1.5%;
    }
    .index #public_teacher_list .item:nth-of-type(-n + 5) {
        margin-top: 2vh;
    }
    .index #public_teacher_list .item:nth-last-child(-n+2){
        display: none;
    }
    .index #public_course_list .item{
        width: 23.8% !important;
    }
    .index #public_course_list .item:nth-of-type(4n) {
        margin-right: 0;
    }
    .index #public_course_list .item:nth-of-type(-n + 4) {
        margin-top: 0;
    }
    .index #public_course_list .item:nth-of-type(5n) {
        margin-right: 1.5% !important;
    }
    .index #public_course_list .item:nth-of-type(-n + 5) {
        margin-top: 2vh !important;
    }
    .index #public_course_list .item:nth-last-child(-n+2){
        display: none;
    } */
}
@media screen and (min-width:1200px) and (max-width:1499px) {
    #public_course_list .item {
        /* background-color: yellow; */
    }
    .pos_abs_center {
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }
    /* 底部 */
    #public_footer dt {
        position: relative;
    }
    /* 教师列表 */
    #public_teacher_list .item {
        height: auto!important;
    }
    #public_teacher_list.public_teacher_list_6 .item {
        width: 18.4%;
    }
    #public_teacher_list.public_teacher_list_6 .item:nth-of-type(5n) {
        margin-right: 0;
    }
    #public_teacher_list.public_teacher_list_6 .item:nth-of-type(-n + 5) {
        margin-top: 0;
    }
    /* 课程列表 */
    #public_course_list .item {
        width: 23.5%;
    }
    #public_course_list .item:nth-of-type(4n) {
        margin-right: 0;
    }
    #public_course_list .item:nth-of-type(-n + 4) {
        margin-top: 0;
    }
    #public_course_list.public_course_list_6 .item {
        width: 18.4%;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(4n) {
        margin-right: 2%;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(5n) {
        margin-right: 0;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(-n + 5) {
        margin-top: 0;
    }
    /* 首页课程列表 */
    .index #public_course_list .item {
        width: 23.5%;
    }
    .index #public_course_list .item:nth-of-type(4n) {
        margin-right: 0;
    }
    .index #public_course_list .item:nth-of-type(-n + 4) {
        margin-top: 0;
    }
    .index #public_course_list .item:nth-last-child(-n+2) {
        display: none;
    }
    /* 首页教师列表 */
    .index #public_teacher_list .item {
        width: 23.5%;
    }
    .index #public_teacher_list .item:nth-of-type(4n) {
        margin-right: 0;
    }
    .index #public_teacher_list .item:nth-of-type(-n + 4) {
        margin-top: 0;
    }
    .index #public_teacher_list .item:nth-last-child(-n+2) {
        display: none;
    }
    /* 首页 */
    #index #public_main .wrap_86 {
        left: 50%;
        position: absolute;
        transform: translate(-50%, -50%);
    }
    #index #public_main .search_box {
        width: 50%;
    }
    /* 课程-所有类别 */
    #course_all #public_main .category_list li {
        width: 22.8%;
    }
    #course_all #public_main .category_list li:nth-of-type(4n) {
        margin-right: 0;
    }
    #course_all #public_main .category_list li:nth-of-type(-n + 4) {
        margin-top: 0;
    }
    /* 课程详情 */
    #course_detail .detail_bottom .detail_bottom_l dl dd ul li {
        width: 48.5%;
    }
    #course_detail .detail_bottom .detail_bottom_r .detail_bottom_r_t .img_name_school ol {
        flex-wrap: wrap;
    }
    #course_all .pos_abs_center {
        top: 0;
        transform: translate(-50%, 0);
    }
}

@media screen and (min-width:960px) and (max-width:1199px) {
    #public_course_list .item {
        /* background-color: blue; */
    }
    .pos_abs_center {
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }
    /* 横导航 */
    #public_horizontal_nav_main {
        margin-left: 50px;
    }
    #public_horizontal_nav_main li {
        margin-right: 40px;
    }
    /* 底部 */
    #public_footer dt {
        position: relative;
    }
    /* 横导航 */
    #public_horizontal_nav li {
        margin-bottom: 2%;
    }
    /* 教师列表 */
    #public_teacher_list .item {
        height: auto!important;
    }
    #public_teacher_list.public_teacher_list_6 .item {
        width: 23.5%;
    }
    #public_teacher_list.public_teacher_list_6 .item:nth-of-type(4n) {
        margin-right: 0;
    }
    #public_teacher_list.public_teacher_list_6 .item:nth-of-type(-n + 4) {
        margin-top: 0;
    }
    /* 课程列表 */
    #public_course_list .item {
        width: 32%;
    }
    #public_course_list .item:nth-of-type(3n) {
        margin-right: 0;
    }
    #public_course_list .item:nth-of-type(-n + 3) {
        margin-top: 0;
    }
    #public_course_list.public_course_list_6 .item {
        width: 23.5%;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(3n) {
        margin-right: 2%;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(4n) {
        margin-right: 0;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(-n + 4) {
        margin-top: 0;
    }
    /* 首页 */
    .index .pos_abs_center {
        position: static;
        transform: translate(0, 0);
    }
    /* 首页课程列表 */
    .index #public_course_list .item {
        width: 31.3%;
    }
    .index #public_course_list .item:nth-of-type(3n) {
        margin-right: 0;
    }
    .index #public_course_list .item:nth-of-type(-n + 3) {
        margin-top: 0;
    }
    /* 首页教师列表 */
    .index #public_teacher_list .item {
        width: 31.3%;
    }
    .index #public_teacher_list .item:nth-of-type(3n) {
        margin-right: 0;
    }
    .index #public_teacher_list .item:nth-of-type(-n + 3) {
        margin-top: 0;
    }
}

@media screen and (max-width:1199px) {
    /* 首页 */
    #index #public_main .wrap_86 {
        left: 55%;
        position: absolute;
        transform: translate(-50%, -50%);
    }
    #index #public_main .search_box {
        width: 55%;
    }
    /* #index #public_main .introduce {
        width: 85%;
        margin-top: 150px;
    } */
    /* 课程详情 */
    #course_detail .detail_top .detail_top_r .title_collect {
        display: block;
    }
    #course_detail .detail_top .detail_top_r .title_collect ul {
        margin-top: 12px;
    }
    #course_detail .detail_bottom .detail_bottom_r .detail_bottom_r_b ul>li {
        border-bottom: 1px solid rgba(217, 217, 217, 0.30);
    }
    #course_detail .detail_bottom .detail_bottom_r .detail_bottom_r_b ul>li:last-of-type {
        border: none;
    }
    #course_detail .detail_bottom .detail_bottom_r .detail_bottom_r_b li a {
        display: block;
    }
    #course_detail .detail_bottom .detail_bottom_r .detail_bottom_r_b li img {
        width: 100%;
        margin-bottom: 12px;
    }
    #course_detail .detail_bottom .detail_bottom_l dl dd ul li {
        width: 48.5%;
    }
    #course_detail .detail_bottom .detail_bottom_r .detail_bottom_r_t .img_name_school ol {
        flex-wrap: wrap;
    }
    #course_detail .detail_bottom .detail_bottom_r .detail_bottom_r_t .img_name_school h5 {
        display: block;
    }
    #course_detail .detail_bottom .detail_bottom_r .detail_bottom_r_t .img_name_school h5 span {
        display: block;
        margin: 12px 0 0 0;
        width: 58px;
        text-align: center;
        box-sizing: border-box;
    }
}

@media screen and (max-width:959px) {
    #public_course_list .item {
        /* background-color: green; */
    }
    .pos_abs_center {
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }
    /* 横导航 */
    #public_horizontal_nav_main {
        margin-left: 25px;
    }
    #public_horizontal_nav_main li {
        margin-right: 15px;
    }
    /* 底部 */
    #public_footer dt {
        position: relative;
    }
    /* 横导航 */
    #public_horizontal_nav li:nth-last-child(-n+2) {
        margin-top: 2%;
    }
    /* 教师列表 */
    #public_teacher_list .item {
        height: auto!important;
    }
    #public_teacher_list.public_teacher_list_6 .item {
        width: 31.9%;
    }
    #public_teacher_list.public_teacher_list_6 .item:nth-of-type(3n) {
        margin-right: 0;
    }
    #public_teacher_list.public_teacher_list_6 .item:nth-of-type(-n + 3) {
        margin-top: 0;
    }
    /* 课程列表 */
    #public_course_list .item {
        width: 49%;
    }
    #public_course_list .item:nth-of-type(2n) {
        margin-right: 0;
    }
    #public_course_list .item:nth-of-type(-n + 2) {
        margin-top: 0;
    }
    #public_course_list.public_course_list_6 .item {
        width: 32%;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(2n) {
        margin-right: 2%;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(3n) {
        margin-right: 0;
    }
    #public_course_list.public_course_list_6 .item:nth-of-type(-n + 3) {
        margin-top: 0;
    }
    /* 首页 */
    .index .pos_abs_center {
        position: static;
        transform: translate(0, 0);
    }
    /* 首页课程列表 */
    .index #public_course_list .item {
        width: 48.5%;
    }
    .index #public_course_list .item:nth-of-type(2n) {
        margin-right: 0;
    }
    .index #public_course_list .item:nth-of-type(-n + 2) {
        margin-top: 0;
    }
    /* 首页教师列表 */
    .index #public_teacher_list .item {
        width: 48.5%;
    }
    .index #public_teacher_list .item:nth-of-type(2n) {
        margin-right: 0;
    }
    .index #public_teacher_list .item:nth-of-type(-n + 2) {
        margin-top: 0;
    }
    #course_detail .detail_bottom .detail_bottom_l dl dd ul li {
        width: 100%;
    }
    /* 首页 */
    #index #public_main .search_box {
        width: 80%;
    }
}


/* 横向-end */


/* 竖向-start */

@media screen and (max-height:949px) and (min-width:1500px) {
    .index #public_course_list .item {
        /* background-color: red; */
    }
    #public_vertical_nav li a {
        width: 75px;
    }
    #public_vertical_nav .img_parent {
        width: 100%;
        height: 75px;
    }
    #public_vertical_nav img {
        width: 30px;
    }
    /* 查看更多 */
    #public_more {
        margin: 3vh 0;
    }
    /* #index #public_main .introduce {
        margin-top: 4vh;
    } */
    /* 首页课程列表 */
    .index #public_course_list .item {
        width: 18.8%;
        margin: 2vh 1.5% 0 0;
        /* padding-bottom: 0; */
    }
    .index #public_course_list .item .study a {
        /* margin-bottom: 5px; */
    }
    .index #public_course_list .item .introduce_default,
    .index #public_course_list .item .introduce_hover {
        padding-top: 5px;
    }
    /* 首页教师列表 */
    .index #public_teacher_list .item {
        width: 18.8%;
        margin: 2vh 1.5% 0 0;
        padding-bottom: 0;
        box-sizing: border-box;
    }
    .index #public_teacher_list .item .introduce_default .description {
        -webkit-line-clamp: 4;
        margin: 2vh auto;
    }
    .index #public_teacher_list .item .introduce_default.introduce_hover .description {
        -webkit-line-clamp: 8;
    }
    .index #public_teacher_list .item .course_list {
        padding: 10px 0;
    }
    /* 首页横导航 */
    .index #public_horizontal_nav {
        margin-bottom: 2vh;
    }
}

@media screen and (max-height:749px) and (min-width:1500px) {
    .index #public_course_list .item {
        /* background-color: yellow; */
    }
    #public_vertical_nav {
        top: 50%;
    }
    #public_vertical_nav li {
        margin-bottom: 2vh;
    }
    #public_vertical_nav .img_parent {
        width: 66px;
        height: 66px;
    }
    #public_vertical_nav li a {
        width: 66px;
    }
    /* 首页课程列表 */
    .index .pos_abs_center {
        top: 50%!important;
        transform: scale(0.85) translate(-60%, -62%)!important;
    }
}

@media screen and (max-height:949px) and (min-width:1200px) and (max-width:1499px) {
    /* 查看更多 */
    #public_more {
        margin: 3vh 0 0;
    }
    /* #index #public_main .introduce {
        margin-top: 8vh;
    } */
    /* 首页课程列表 */
    .index #public_course_list .item {
        width: 24.2%;
        margin: 1vh 1% 0 0;
        padding-bottom: 0;
    }
    .index #public_course_list .item .study a {
        /* margin-bottom: 5px; */
    }
    .index #public_course_list .item .introduce_default,
    .index #public_course_list .item .introduce_hover {
        padding-top: 5px;
    }
    /* 首页教师列表 */
    .index #public_teacher_list .item {
        width: 23.8%;
        margin: 2vh 1.5% 0 0;
        padding-bottom: 0;
    }
    #public_teacher_list .item .course_list {
        padding: 1vh 0;
    }
    .index #public_teacher_list .item .introduce_default .description {
        -webkit-line-clamp: 4;
        margin: 1vh auto;
    }
    #public_teacher_list .item .introduce_default .info_num {
        margin-top: 2vh;
    }
    .index #public_teacher_list .item .introduce_default.introduce_hover .description {
        -webkit-line-clamp: 8;
    }
    /* 首页横导航 */
    .index #public_horizontal_nav {
        margin-bottom: 1vh;
    }
    #public_vertical_nav {
        top: 50%;
    }
    #public_vertical_nav li {
        margin-bottom: 1vh;
    }
    #public_vertical_nav .img_parent {
        width: 66px;
        height: 66px;
    }
    #public_vertical_nav li a {
        width: 66px;
    }
    #public_vertical_nav img {
        width: 25px;
    }
}

@media screen and (max-height:749px) and (min-width:1200px) and (max-width:1499px) {
    .pos_abs_center {
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }
    .index .pos_abs_center {
        width: 85%;
    }
    /* 首页课程列表 */
    .index #public_course_list .item {
        width: 24.2%;
        margin: 2vh 1% 0 0;
        padding-bottom: 0;
    }
    /* 首页教师列表 */
    .index #public_teacher_list .item .course_list {
        padding: 10px 0;
    }
    #course_certified .pos_abs_center {
        transform: scale(0.75) translate(-65%, -20%)!important;
    }
    #course_all .pos_abs_center {
        transform: scale(0.75) translate(-65%, -20%)!important;
        width: 85%;
    }
    #teacher_certified .pos_abs_center {
        width: 75%;
        transform: scale(0.8) translate(-63%, -65%);
    }
    #school_not_certified .wrap_68 {
        min-height: auto;
        transform: scale(0.75) translate(-65%, -70%);
    }
    #school_certified .pos_abs_center {
        transform: scale(0.75) translate(-65%, -20%)!important;
    }
    #school_not_certified .wrap_68 ul {
        padding-top: 2vh;
    }
    #school_not_certified .wrap_68 ul li {
        margin: 0 2% 2vh;
        padding: 2vh 28px;
        width: 47%;
    }
}


/* 竖向-end */