* {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
}

.hide {
    display: none;
}

.page_tit_auto {
    box-sizing: border-box;
}

.atst_courseList {
    width: 1200px;
    margin: 0 auto;
    /*padding-top: 35px;*/
}

.atst_courseList .list-more {
    border-left: 2px solid #639AD2;
    margin-left: 14px;
}

.atst_course_tabCon .tab_wrap {
    display: flex;
    flex-wrap: wrap;
    width: 1230px;
}

.atst_course_tabCon .tab_wrap.hide {
    display: none;
}

.atst_course_tabCon .tab_wrap .item {
    transition: all ease .3s;
    cursor: pointer;
    position: relative;
    width: 372px;
    height: 220px;
    margin-right: 14px;
    margin-bottom: 30px;
    padding-left: 31px;
    padding-top: 35px;
    box-sizing: border-box;
}

.atst_course_tabCon .tab_wrap .item:hover {
    margin-top: -5px;
    margin-bottom: 35px;
}

.atst_course_tabCon .list-all {
    margin-left: 15px;
    padding: 34px 0 0px 24px;
}

.atst_course_tabCon .tit-wrap {
    overflow: hidden;
    position: relative;
}

.atst_course_tabCon .tit-wrap img {
    width: 32px;
    height: 32px;
    float: left;
    margin-right: 8px;
    margin-top: 6px;
}

.atst_course_tabCon .tit-wrap .h2-tit {
    position: relative;
    overflow: hidden;
}

.atst_course_tabCon .tit-wrap .h2-tit::after {
    border-bottom: 1px solid #D8EAFF;
    opacity: 0.2;
    content: '';
    position: absolute;
    bottom: 4px;
    width: 100%;
    left: 0;
}

.atst_course_tabCon .tit-wrap .h2-tit h2 {
    float: left;
    font-weight: 500;
    font-size: 24px;
    text-shadow: 0 0 6px #639AD2;
    content: '';
    background: url(../images/coursetree-tkf.png) no-repeat center;
    display: inline-block;
    width: 182px;
    height: 43px;
    color: #fff;
    line-height: 39px;
    background-size: 182px 43px;
}

.atst_course_tabCon .tit-wrap .h2-tit.ftk h2 {
    background: url(../images/coursetree-tkf.png) no-repeat center;
    background-size: 362px 45px;
    height: 45px;
    width: 362px;
}

.atst_course_tabCon .tit-wrap .title-small h2 {
    background: url(../images/treecouse10.png) no-repeat center;
    width: 164px;
    height: 46px;
}

.atst_course_tabCon .tit-wrap .kmlx {
    cursor: pointer;
    background: url(../images/gold-kmlx.png) no-repeat;
    width: 116px;
    height: 39px;
    background-size: 116px 39px;
    position: absolute;
    right: 0;
    color: #00DDFF;
    font-size: 16px;
    top: 0px;
    line-height: 39px;
    display: flex;
    box-sizing: border-box;
    justify-content: center;
}

.atst_course_tabCon .tit-wrap .kmlx::after {
    display: inline-block;
    vertical-align: top;
    border-top: 6px solid #00DDFF;
    border-right: 6px solid transparent;
    border-left: 6px solid transparent;
    content: "";
    margin-top: 18px;
    margin-left: 8px;
}

.atst_course_tabCon .tab_wrap .item h3 {
    text-overflow: ellipsis;
    overflow: hidden;
    padding-bottom: 4px;
    padding-right: 20px;
    font-size: 20px;
    color: #fff;
    line-height: 30px;
    -webkit-line-clamp: 2;
    display: -webkit-box;
    width: 310px;
    height: 56px;
    font-weight: 500;
    -webkit-box-orient: vertical;
}

.atst_course_tabCon .tab_wrap .item p {
    display: flex;
    line-height: 20px;
    padding-top: 8px;
    align-items: center;
    color: #fff;
    font-size: 14px;
}

.atst_course_tabCon .tab_wrap .item p span {
    opacity: 0.5;
    padding-left: 8px;
    font-weight: 400;
    font-size: 14px;
}

.atst_course_tabCon .tab_wrap .item p img {
    width: 14px;
    margin-top: 0px;
}

.atst_course_tabCon .tab_wrap .ter_photo {
    display: flex;
    padding-top: 16px;
    margin-left: -4px;
}

.atst_course_tabCon .tab_wrap .ter_photo li {
    margin-right: 0px;
}

.atst_course_tabCon .tab_wrap .ter_photo li img {
    width: 32px;
    height: 32px;
    border-radius: 30px;
    margin-left: 14px;
}

.atst_course_tabCon .tab_wrap .ter_photo li .name {
    font-size: 12px;
    color: #fff;
    opacity: 0.5;
    padding-top: 2px;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 60px;
    overflow: hidden;
}

.atst_course_tabCon .tab_wrap .item .expired_icon {
    width: 80px;
    height: 80px;
    background: url(../images/expired_icon.png) no-repeat 0 0;
    opacity: 0.5;
    background-size: 100% 100%;
    position: absolute;
    top: 28px;
    right: 13px;
}

.atst_course_tabCon.ggk .tab_wrap.ys2 .item {
    background: url(../images/gold_course_yellowBg.png) no-repeat 0 0;
    background-size: 100% 100%;
    width: 372px;
    height: 220px;
}

.atst_course_tabCon.ggk .tab_wrap.ys1 .item {
    background-image: url(../images/gold_course_blueBg.png);
    background-size: 100% 100%;
    width: 372px;
    height: 220px;
}

.atst_course_tabCon.ggk .tab_wrap.ys3 .item {
    background-image: url(../images/gold_course_orangeBg.png);
    background-size: 100% 100%;
    width: 372px;
    height: 220px;
}

.atst_course_tabCon.ggk .tab_wrap.ys2 .start {
    background: url(../images/gold-start1.png) no-repeat 0px 0;
    width: 76px;
    height: 32px;
    display: inline-block;
    line-height: 32px;
    color: #E811FB;
    right: 32px;
    background-size: 76px 32px;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.50);
    bottom: 38px;
    position: absolute;
    text-align: center;
    font-size: 14px;
}

.atst_course_tabCon.ggk .tab_wrap.ys2 .start:hover {
    text-decoration: none;
}

.atst_course_tabCon.ggk .tab_wrap.ys1 .start {
    color: #00DDFF;
    background: url(../images/gold-start2.png) no-repeat 0px 0;
    width: 76px;
    height: 32px;
    display: inline-block;
    line-height: 32px;
    right: 32px;
    background-size: 76px 32px;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.50);
    bottom: 38px;
    position: absolute;
    text-align: center;
    font-size: 14px;
}

.atst_course_tabCon.ggk .tab_wrap.ys1 .start:hover {
    text-decoration: none;
}

.atst_course_tabCon.ggk .tab_wrap.ys3 .start {
    color: #FF8334;
    background: url(../images/gold-start3.png) no-repeat 0px 0;
    width: 76px;
    height: 32px;
    display: inline-block;
    line-height: 32px;
    right: 32px;
    background-size: 76px 32px;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.50);
    bottom: 38px;
    position: absolute;
    text-align: center;
    font-size: 14px;
}

.atst_course_tabCon.ggk .tab_wrap.ys3 .start:hover {
    text-decoration: none;
}


.atst_course_tabCon.zyk .tab_wrap.ys3 .item {
    background-image: url(../images/gold_course_blueBg.png);
    background-size: 100% 100%;
    width: 372px;
    height: 220px;
}

.atst_course_tabCon.zyk .tab_wrap.ys1 .item {
    background: url(../images/gold_course_yellowBg.png) no-repeat 0 0;
    background-size: 100% 100%;
    width: 372px;
    height: 220px;
}

.atst_course_tabCon.zyk .tab_wrap.ys2 .item {
    background-image: url(../images/gold_course_orangeBg.png);
    background-size: 100% 100%;
    width: 372px;
    height: 220px;
}

.atst_course_tabCon.zyk .tab_wrap.ys1 .start {
    background: url(../images/gold-start1.png) no-repeat 0px 0;
    width: 76px;
    height: 32px;
    display: inline-block;
    line-height: 32px;
    color: #E811FB;
    right: 32px;
    background-size: 76px 32px;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.50);
    bottom: 38px;
    position: absolute;
    text-align: center;
    font-size: 14px;
}

.atst_course_tabCon.zyk .tab_wrap.ys1 .start:hover {
    text-decoration: none;
}

.atst_course_tabCon.zyk .tab_wrap.ys3 .start {
    color: #00DDFF;
    background: url(../images/gold-start2.png) no-repeat 0px 0;
    width: 76px;
    height: 32px;
    display: inline-block;
    line-height: 32px;
    right: 32px;
    background-size: 76px 32px;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.50);
    bottom: 38px;
    position: absolute;
    text-align: center;
    font-size: 14px;
}

.atst_course_tabCon.zyk .tab_wrap.ys3 .start:hover {
    text-decoration: none;
}

.atst_course_tabCon.zyk .tab_wrap.ys2 .start {
    color: #FF8334;
    background: url(../images/gold-start3.png) no-repeat 0px 0;
    width: 76px;
    height: 32px;
    display: inline-block;
    line-height: 32px;
    right: 32px;
    background-size: 76px 32px;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.50);
    bottom: 38px;
    position: absolute;
    text-align: center;
    font-size: 14px;
}

.atst_course_tabCon.zyk .tab_wrap.ys2 .start:hover {
    text-decoration: none;
}




.null_defined {
    text-align: center;
    padding-top: 100px;
    padding-bottom: 40px;
}


.atst_course_tabCon.tyy .tit-wrap .h2-tit h2 {
    float: left;
    font-weight: 500;
    font-size: 24px;
    text-shadow: 0 0 6px #639AD2;
    content: '';
    background: url(../images/coursetree-kytyy.png) no-repeat center;
    display: inline-block;
    width: 232px;
    height: 43px;
    color: #fff;
    line-height: 39px;
    background-size: 232px 44px;
}

.atst_course_tabCon.txy .tit-wrap .H2-TIT h2 {
    float: left;
    font-weight: 500;
    font-size: 24px;
    text-shadow: 0 0 6px #639AD2;
    content: '';
    background: url(../images/coursetree-kytxy.png) no-repeat center;
    display: inline-block;
    width: 182px;
    height: 43px;
    color: #fff;
    line-height: 39px;
    background-size: 182px 43px;
}

.atst_course_tabCon .list-all {
    max-height: 498px;
    overflow: hidden;
}

.atst_course_tabCon .list-more .more {
    cursor: pointer;
    color: #4DA7FF;
    color: rgba(77, 167, 255, 1);
    font-size: 16px;
    font-weight: 400;
    text-align: center;
    background: url(../images/gold-more.png) no-repeat center 0px;
    width: 24px;
    height: 24px;
    background-size: 24px 24px;
    padding-left: 115px;
    width: 100%;
    margin-left: -90px;
}

.atst_course_tabCon .list-more .more:hover {
    color: #00DDFF;
    background: url(../images/gold-more2.png) no-repeat center 0px;
    width: 24px;
    height: 24px;
    background-size: 24px 24px;
    padding-left: 115px;
    width: 100%;
    margin-left: -90px;
}

.atst_course_tabCon .list-more .more.change {
    background: url(../images/gold-more-change.png) no-repeat center 0px;
    width: 24px;
    height: 24px;
    background-size: 24px 24px;
    padding-left: 115px;
    width: 100%;
    margin-left: -90px;
}

.atst_course_tabCon .list-all.style-change {
    height: auto;
    overflow: visible;
    max-height: none;
}

/* index move */

.course-tree {
    margin-top: 40px;
}

.course-tree .tree-part-list {
    padding-bottom: 10px;
}

.course-tree .tree-part-list .tit-wrap {
    overflow: hidden;
}

.course-tree .tree-part-list .tit-wrap img {
    width: 32px;
    height: 32px;
    float: left;
    margin-right: 8px;
    margin-top: 6px;
}

.course-tree .tree-part-list .tit-wrap .h2-tit {
    position: relative;
    overflow: hidden;
}


.course-tree .tree-part-list .tit-wrap .h2-tit::after {
    border-bottom: 1px solid #D8EAFF;
    opacity: 0.2;
    content: '';
    position: absolute;
    bottom: 4px;
    width: 100%;
    left: 0;
}

.course-tree .tree-part-list .tit-wrap .h2-tit h2 {
    float: left;
    font-weight: 500;
    font-size: 24px;
    text-shadow: 0 0 6px #639AD2;
    content: '';
    background: url(../images/qdqx-mini.png) no-repeat center;
    display: inline-block;
    width: 182px;
    height: 40px;
    background-size: 182px 40px;
    color: #fff;
    line-height: 33px;
}

.course-tree .tree-part-list .tit-wrap .h2-tit.tyy h2 {
    background: url(../images/coursetree-kytyy.png) no-repeat center;
    background-size: 232px 45px;
    height: 45px;
    width: 232px;
}

.course-tree .tree-part-list .tit-wrap .h2-tit.tkf h2 {
    background: url(../images/coursetree-tkf.png) no-repeat center;
    background-size: 362px 45px;
    height: 45px;
    width: 362px;
}

.course-tree .tree-part-list .tit-wrap .title-small h2 {
    background: url(../images/coursetree-kytxy.png) no-repeat center;
    width: 182px;
    height: 46px;
    background-size: 182px 43px;
}

.course-tree .tree-part-list .h3-tit {
    overflow: hidden;
    position: relative;
    left: -63px;
    padding: 0px 0px 38px 30px;
    box-sizing: border-box;
    width: 1200px;
}

.course-tree .tree-part-list .h3-tit img {
    float: left;
    width: 16px;
    height: 16px;
    margin-right: 20px;
    margin-top: 7px;
}

.course-tree .tree-part-list .h3-tit h3 {
    float: left;
    font-weight: 500;
    font-size: 20px;
    color: #FFFFFF;
    line-height: 30px;
}

.course-tree .tree-part-list .h3-tit p.zs a {
    text-decoration: none;
    float: left;
    margin-top: 2px;
    background: url(../images/treecouse07.png) no-repeat 0 0;
    width: 108px;
    height: 32px;
    font-size: 14px;
    color: #00DDFF;
    line-height: 32px;
    margin-left: 16px;
    text-align: center;
}

.course-tree .tree-part-list a.zs {
    text-decoration: none;
    float: left;
    margin-top: 2px;
    background: url(../images/treecouse06.png) no-repeat 0 0;
    width: 80px;
    height: 32px;
    font-size: 14px;
    color: #00DDFF;
    line-height: 32px;
    margin-left: 16px;
    text-align: center;
}

.course-tree .tree-part-list .tit-wrap .h2-tit p.end {
    background: url(../images/xlb.png) no-repeat 0 2px;
    height: 32px;
    padding-left: 20px;
    background-size: 14px 14px;
    position: absolute;
    right: 0;
    color: #00DDFF;
    font-size: 14px;
    top: 18px;
}

.course-tree .tree-part-list .tit-wrap .h2-tit p.end span {
    color: #FADB2A;
}

.course-tree .tree-part-list .tit-wrap .h2-tit p.zs a {
    text-decoration: none;
    float: left;
    margin-top: 2px;
    background: url(../images/treecouse06.png) no-repeat 0 0;
    width: 80px;
    height: 32px;
    font-size: 14px;
    color: #00DDFF;
    line-height: 32px;
    margin-left: 16px;
    text-align: center;
}

.course-tree .tree-part-list .tit-wrap .h2-tit a.zs {
    text-decoration: none;
    float: left;
    margin-top: 2px;
    background: url(../images/treecouse06.png) no-repeat 0 0;
    width: 80px;
    height: 32px;
    font-size: 14px;
    color: #00DDFF;
    line-height: 32px;
    margin-left: 16px;
    text-align: center;
}

.course-tree .tree-part-list .tit-wrap .h2-tit a.zsbig {
    text-decoration: none;
    float: left;
    margin-top: 2px;
    background: url(../images/treecouse07.png) no-repeat 0 0;
    width: 108px;
    height: 32px;
    font-size: 14px;
    color: #00DDFF;
    line-height: 32px;
    margin-left: 16px;
    text-align: center;
}

.course-tree .tree-part-list .course-all {
    border-left: 2px solid #639AD2;
    margin-left: 14px;
    padding: 34px 0 0px 24px;
}

.course-tree .tree-part-list .course-all ul {
    padding-bottom: 18px;
    overflow: hidden;
    padding-top: 4px;
}

.course-tree .course-all ul .course-each {
    position: relative;
    overflow: hidden;
    margin-bottom: 20px;
    margin-right: 14px;
    float: left;
    transition: all .25s ease-in;
}

.course-tree .course-all ul .course-each:hover {
    transform: translateY(-4px);
}

.course-tree .tree-part-list .course-all .course-each:nth-child(3n) {
    margin-right: 0;
}

.course-tree .tree-part-list .course-all .course-each img {
    width: 127px;
    height: 121px;
    border: 1px solid #00DDFF;
    border-radius: 4px;
    position: absolute;
    top: 50%;
    -webkit-transform: translate(0, -50%);
    -moz-transform: translate(0, -50%);
    transform: translate(0, -50%);
}

.course-tree .tree-part-list .course-all .course-each .text {
    height: 121px;
    box-sizing: border-box;
    margin-left: 143px;
    border-bottom: 1px solid rgba(132, 136, 175, 0.50);
    padding-top: 22px;
    width: 212px;
    font-size: 18px;
    line-height: 25px;
}

.course-tree .tree-part-list .course-all .course-each .text p.tit {
    font-size: 18px;
    font-weight: 500;
    color: #fff;
    padding-bottom: 10px;
    height: 50px;
}

.course-tree .tree-part-list .course-all .course-each .text p.tip1 {
    font-size: 14px;
    color: #D8EAFF;
}

.course-tree .tree-part-list .course-all .course-each .t-link {
    margin-left: 141px;
    width: 212px;
    margin-top: 12px;
}

.course-tree .tree-part-list .course-all .course-each .t-link a {
    background: url(../images/treecouse13.png) no-repeat 0 3px;
    height: 17px;
    color: #D8EAFF;
    font-size: 14px;
    display: inline-block;
    padding-left: 22px;
    display: block;
    background-size: 14px 14px;
    line-height: 20px;
    float: left;
    margin-right: 30px;
}

.course-tree .tree-part-list .course-all .course-each .t-link a:nth-child(2) {
    background: url(../images/treecouse12.png) no-repeat 0 3px;
    background-size: 14px 14px;
}

.course-tree .tree-part-list .course-all .course-each .t-link a:nth-child(3) {
    background: url(../images/treecouse11.png) no-repeat 0 3px;
    background-size: 14px 14px;
    margin-right: 0
}

.course-tree .tree-part-list .course-all .course-each .t-link a:hover {
    color: #E6F1FF;
}

.course-tree .course-all ul.ys1 .course-each {
    background: url(../images/treecouse01.png) no-repeat 0px 0;
    width: 377px;
    height: 173px;
}

.course-tree .course-all ul.ys2 .course-each {
    background: url(../images/treecouse02.png) no-repeat 0px 0;
    width: 377px;
    height: 173px;
}

.course-tree .course-all ul.ys3 .course-each {
    background: url(../images/treecouse03.png) no-repeat 0px 0;
    width: 374px;
    height: 172px;
}

.course-tree .tree-part-list .course-all .course-each .text a.start {
    display: block;
    font-size: 14px;
    text-align: center;
    line-height: 31px;
    margin-top: -3px;
    margin-left: 135px;
}

.course-tree .course-all ul.ys1 .course-each .text .start {
    background: url(../images/treecouse15.png) no-repeat 0px 0;
    width: 76px;
    height: 32px;
    color: #00DDFF;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.50);
}

.course-tree .course-all ul.ys2 .course-each .text .start {
    background: url(../images/treecouse16.png) no-repeat 0px 0;
    width: 76px;
    height: 32px;
    color: #FADB2A;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.50);
}

.course-tree .course-all ul.ys3 .course-each .text .start {
    background: url(../images/treecouse17.png) no-repeat 0px 0;
    width: 76px;
    height: 32px;
    color: #EC11FF;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.50);
}

.course-tree .course-all .course-each .text .start:hover {
    text-decoration: none;
}

.course-tree .tree-part-list .course-all ul.ys2 .course-each img {
    width: 127px;
    height: 121px;
    border: 1px solid #FADB2A;
    border-radius: 4px;
    position: absolute;
    top: 50%;
    -webkit-transform: translate(0, -50%);
    -moz-transform: translate(0, -50%);
    transform: translate(0, -50%);
}

.course-tree .tree-part-list .course-all ul.ys3 .course-each img {
    width: 127px;
    height: 121px;
    border: 1px solid #E811FB;
    border-radius: 4px;
    position: absolute;
    top: 50%;
    -webkit-transform: translate(0, -50%);
    -moz-transform: translate(0, -50%);
    transform: translate(0, -50%);
}


/**
23-05-10新增atst tab
 */
.atst-tab-wrap {
    width: 1200px;
    margin: 0 auto;
}

.atst-tab {
    /* width: 952px;
    padding-left: 69px;
    padding-right: 71px;*/
    box-sizing: border-box;
    display: flex;
    /* flex-wrap: nowrap; */
    justify-content: space-between;
    margin-bottom: 30px;
    align-items: center;
}

.atst-tab .item {
    background: url(../images/zxt-bg.png) no-repeat;
    width: 288px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: 288px 64px;
    /* margin-right: 14px; */
    color: #fff;
    font-size: 24px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    line-height: 24px;
}

.atst-tab .item:nth-child(1).cur {
    background-image: url(../images/zxt-bg-cur.png);
}

.atst-tab .item:nth-child(2) {
    background-image: url(../images/jk-bg.png);
}

.atst-tab .item:nth-child(2).cur {
    background-image: url(../images/jk-bg-cur.png);
}

.atst-tab .item:nth-child(3) {
    background-image: url(../images/fzxt-bg.png);
}

.atst-tab .item:nth-child(3).cur {
    background-image: url(../images/fzxt-bg-cur.png);
}

.atst-tab .item:nth-child(4) {
    background-image: url(../images/qljstudy-bg.png);
}

.atst-tab .item:nth-child(4).cur {
    background-image: url(../images/qljstudy-bg-cur.png);
}

/* 07-17 */


.atst-tab-wrap {
    padding-top: 5px;
    position: relative;
    z-index: 2;
}

.item-content {
    position: relative;
    z-index: 2;
}

/* 24-07-24 导航背景 */
.course-tree .tree-part-list .tit-wrap .h2-tit.tit6 h2 {
    background: url(../images/tit6.png) no-repeat center;
    background-size: 213px 40px;
    width: 213px;
}

.course-tree .tree-part-list .tit-wrap .h2-tit.tit7 h2 {
    background: url(../images/tit7.png) no-repeat center;
    background-size: 232px 40px;
    width: 232px;
}

.course-tree .tree-part-list .tit-wrap .h2-tit.tit8 h2 {
    background: url(../images/tit8.png) no-repeat center;
    background-size: 257px 40px;
    width: 257px;
}

.course-tree .tree-part-list .tit-wrap .h2-tit.tit9 h2 {
    background: url(../images/tit9.png) no-repeat center;
    background-size: 280px 40px;
    width: 280px;
}

.course-tree .tree-part-list .tit-wrap .h2-tit.tit9-5 h2 {
    background: url(../images/tit9-5.png) no-repeat center;
    background-size: 295px 40px;
    width: 295px;
}

.course-tree .tree-part-list .tit-wrap .h2-tit.tit10 h2 {
    background: url(../images/tit10.png) no-repeat center;
    background-size: 305px 40px;
    width: 305px;
}

.course-tree .tree-part-list .tit-wrap .h2-tit.tit-mba h2 {
    background: url(../images/tit-mba.png) no-repeat center;
    background-size: 346px 40px;
    width: 346px;
}