* {
  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 0.3s;
  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, 0.5);
  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, 0.5);
  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, 0.5);
  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, 0.5);
  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, 0.5);
  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, 0.5);
  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: 24px;
}

.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;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.course-tree .tree-part-list .zd.collapse {
  width: 176px;
  padding: 0 0 !important;
  justify-content: center;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 16px;
}
.course-tree .tree-part-list .zd {
  background: #0b437c;
  border-radius: 4px;
  border: 1px solid rgba(95, 216, 237, 0.5);
  font-size: 14px;
  color: #5fd8ed;
  display: flex;
  align-items: center;
  height: 28px;
  padding: 0 20px;
  margin-bottom: 6px;
}
.course-tree .tree-part-list .zd img {
  width: 16px;
  height: 16px;
  margin-left: 6px;
  margin-top: 1px;
  margin-right: 0;
}
.course-tree .tree-part-list .zd:hover {
  background: #145596;
}
.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(../../super_four/common/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: 24px 0 30px 24px;
  position: relative;
}

.course-tree .tree-part-list .course-all .ftk-h3-tit {
  position: relative;
  padding-bottom: 40px;
}
.course-tree .tree-part-list .course-all .ftk-h3-tit span {
  display: inline-block;
  margin-left: -32px;
  margin-top: -15px;
}
.course-tree .tree-part-list .course-all .ftk-h3-tit img.areaicon {
  float: left;
  width: 16px;
  height: 16px;
  margin-right: 20px;
  margin-top: 7px;
  margin-left: -33px;
}
.course-tree .tree-part-list .course-all .ftk-h3-tit .area {
  margin-left: 0px;
  margin-right: 45px;
  color: #fff;
  font-size: 20px;
  font-weight: 500;
  text-align: center;
  line-height: 40px;
  display: inline-block;
  position: relative;
  width: 80px;
}
.course-tree .tree-part-list .course-all .ftk-h3-tit .area::after {
  background: url(../../super_four/common/images/xljd.png) no-repeat 0 0;
  width: 80px;
  height: 40px;
  display: inline-block;
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}
.course-tree .tree-part-list .course-all .ftk-h3-tit .line::after {
  position: relative;
  top: -8px;
  width: 1012px;
  height: 1px;
  border-bottom: 1px dashed #42bdf8;
  display: inline-block;
  content: '';
}
.course-tree .tree-part-list .course-all .ftk-h3-tit .move-arrow {
  cursor: pointer;
  right: 0;
  width: 36px;
  height: 36px;
  background: rgba(66, 189, 248, 0.1);
  border: 1px solid #42bdf8;
  border-radius: 50%;
  position: relative;
  top: 9px;
  right: -40px;
}
.course-tree .tree-part-list .course-all .ftk-h3-tit .move-arrow::after {
  position: absolute;
  left: 50%;
  top: 50%;
  -webkit-transform: translate(-50%, -50%);
  -moz-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  display: inline-block;
  content: '';
  background: url(../images/ftk-icon5.gif) no-repeat 0 0;
  background-size: 36px 36px;
  width: 36px;
  height: 36px;
}
.course-tree .tree-part-list .course-all .ftk-h3-tit .move-arrow-up::after {
  background: url(../../super_four/category/images/ftk-icon4.gif) no-repeat 0 0;
  width: 36px;
  height: 36px;
  background-size: 36px 36px;
}

.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 0.25s;
}
/* 动画过渡效果 */
.course-tree .course-all .toggle-item {
  overflow: hidden;
  max-height: 200px; /* 足够显示课程项的高度 */
  transition: opacity 0.5s ease;
  opacity: 1;
}

/* 隐藏状态 */
.course-tree .course-all .toggle-item.hidden {
  max-height: 0;
  opacity: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}
.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, 0.5);
  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: right;
}

.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: 374px;
  height: 172px;
  background-size: contain;
}

.course-tree .course-all ul.ys2 .course-each {
  background: url(../images/treecouse02.png) no-repeat 0px 0;
  width: 374px;
  height: 172px;
  background-size: contain;
}

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

.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, 0.5);
}

.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, 0.5);
}

.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, 0.5);
}

.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 {
  box-sizing: border-box;
  display: flex;
  justify-content: space-between;
  margin-bottom: 24px;
  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 {
  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) {
  background: url('../images/zxt-bg.png') no-repeat;
  background-size: 356px 64px;
  width: 356px;
  height: 64px;
}
.atst-tab .item:nth-child(1).cur {
  background-image: url(../images/zxt-bg-cur.png);
  background-size: 356px 64px;
  width: 356px;
  height: 64px;
}

.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);
  background-size: 220px 64px;
  width: 220px;
  height: 64px;
}

.atst-tab .item:nth-child(3).cur {
  background-image: url(../images/fzxt-bg-cur.png);
  background-size: 220px 64px;
  width: 220px;
  height: 64px;
}

.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.tit11 h2 {
  background: url(../images/tit11.png) no-repeat center;
  background-size: 332px 40px;
  width: 332px;
}
.course-tree .tree-part-list .tit-wrap .h2-tit.tit12 h2 {
  background: url(../images/tit12.png) no-repeat center;
  background-size: 346px 40px;
  width: 346px;
}

/* 选择学习版本弹框 */
.learning-version-box {
  background: rgba(0, 0, 0, 0.6);
  width: 100%;
  height: 100%;
  position: fixed;
  z-index: 4;
}
.learning-version {
  background: url(../../super_four/category/images/poup.png) no-repeat center center;
  background-size: 539px 340px;
  width: 539px;
  height: 340px;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 5;
}
.learning-version .close {
  width: 40px;
  height: 40px;
  position: absolute;
  top: 11px;
  right: 27px;
  cursor: pointer;
}
.learning-version h4 {
  color: #ffffff;
  font-size: 20px;
  font-style: normal;
  font-weight: 600;
  line-height: 56px;
  margin-bottom: 32px;
  padding-left: 44px;
}
.learning-version ul {
  max-height: 215px;
  overflow-x: hidden;
  overflow-y: auto;
}
.learning-version ul::-webkit-scrollbar {
  width: 4px;
}
.learning-version ul::-webkit-scrollbar-track {
  border-radius: 8px;
}
.learning-version ul::-webkit-scrollbar-thumb {
  border-radius: 8px;
  background: rgba(179, 191, 255, 0.2);
}
.learning-version ul li.open {
  margin: 0 32px 0 32px;
  display: flex;
  position: relative;
  background: url(../../super_four/category/images/orange-line.png) no-repeat;
  width: 475px;
  height: 61px;
  background-size: 475px 61px;
  margin-bottom: 10px;
}
.learning-version ul li.open:hover {
  background: url(../../super_four/category/images/orange-line-hover.png) no-repeat;
  width: 475px;
  height: 61px;
  background-size: 475px 61px;
  cursor: pointer;
}
.learning-version ul li.unopen {
  margin: 0 32px 0 32px;
  display: flex;
  position: relative;
  background: url(../../super_four/category/images/blue-line.png) no-repeat;
  width: 475px;
  height: 61px;
  background-size: 475px 61px;
  margin-bottom: 10px;
}
.learning-version ul li.unopen:hover {
  background: url(../../super_four/category/images/blue-line-hover.png) no-repeat;
  width: 475px;
  height: 61px;
  background-size: 475px 61px;
  cursor: pointer;
}
.learning-version li img {
  width: 48px;
  height: 45px;
  margin-top: 8px;
  margin-right: 16px;
  margin-left: 8px;
}
.learning-version li .text {
  position: relative;
  width: 265px;
  overflow: hidden;
}
.learning-version li .text p {
  margin-top: 8px;
  font-size: 18px;
  font-style: normal;
  font-weight: 500;
  color: rgb(255, 201, 102);
  /* white-space: nowrap; */
  white-space: normal;
  display: inline-block;
  line-height: 45px;
}

.learning-version li .text p.word {
  line-height: 22px;
}

.learning-version li .text .long-p:hover {
  animation: move 1.5s infinite alternate linear;
}

@keyframes move {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(calc(-100% + 265px), 0);
  }
}
.learning-version li.unopen .text p {
  color: #fff;
}
/* .learning-version li .text span {
  border-radius: 20px;
  background: rgba(255, 129, 51, 0.15);
  color: rgb(255, 129, 51);
  font-size: 12px;
  font-weight: 400;
  line-height: 18px;
  text-align: center;
  padding: 2px 4px;
} */

.learning-version li span {
  border-radius: 20px;
  background: #ff8133;
  color: #fff;
  font-size: 12px;
  font-weight: 400;
  line-height: 18px;
  text-align: center;
  width: 44px;
  height: 18px;
  position: absolute;
  bottom: 8px;
  left: 10px;
}

.learning-version li .start-study {
  width: 100px;
  height: 32px;
  background: url(../../super_four/category/images/orange-study.png);
  background-size: 100px 32px;
  position: absolute;
  right: 24px;
  top: 14px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  line-height: 32px;
}
.learning-version li.unopen .start-study {
  width: 100px;
  height: 32px;
  background: url(../../super_four/category/images/blue-study.png);
  background-size: 100px 32px;
}