body {
  height: 100%;
  display: flex;
  flex-direction: column;
}
#app {
  background-image: url(/learn/static/imgs/npu/premium_courses_bg.png);
  background-size: 100% auto;
  background-position: center top;
  background-repeat: no-repeat;
  flex: 1;
  height: 0;
  overflow-y: auto;
  min-height: unset;
  padding-top: 15vw;
}
#app::-webkit-scrollbar {
  position: absolute;
  width: 6px;
  height: 6px;
}
#app::-webkit-scrollbar-thumb {
  background-color: #cecece;
  border-radius: 99px;
}
#app #head_container .header {
  background-color: #0546d2;
}
.theme_6 #app > .container {
  padding-top: 0;
}
.course_list {
  background-color: #fff;
  border-radius: 6px;
  padding: 20px;
  padding-bottom: 0;
  box-sizing: border-box;
  margin-bottom: 40px;
}
.course_list .search_wrap {
  display: flex;
  padding-bottom: 20px;
  border-bottom: 1px solid #EDEDED;
  margin-bottom: 30px;
}
.course_list .search_wrap .search_box {
  margin-left: auto;
  width: 400px;
  border: 1px solid #EDEDED;
  border-radius: 99px;
  overflow: hidden;
  height: 40px;
  line-height: 40px;
  font-size: 14px;
}
.course_list .search_wrap .search_box .el-input__inner {
  height: 100%;
}
.course_list .search_wrap .search_box input {
  border: none;
}
.course_list .search_wrap .search_box .el-input-group__append {
  padding: 4px;
  background-color: transparent;
  border: none;
  box-sizing: unset;
}
.course_list .search_wrap .search_box .el-input-group__append .search_icon {
  padding: 0 20px;
  background-color: var(--color-primary);
  color: #fff;
  height: 34px;
  line-height: 34px;
  border-radius: 99px;
}
.course_list .search_wrap .el-select {
  position: relative;
  box-sizing: content-box;
  width: 84px;
}
.course_list .search_wrap .el-select + .el-select {
  padding-left: 30px;
  margin-left: 30px;
}
.course_list .search_wrap .el-select + .el-select::before {
  content: '';
  width: 1px;
  height: 12px;
  background-color: #D8D8D8;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}
.course_list .search_wrap .el-select input {
  padding-left: 0;
  text-overflow: ellipsis;
  color: #2A2A2A;
}
.course_list .search_wrap .el-select input::placeholder {
  color: #2A2A2A;
}
.course_list .search_wrap .el-select .el-input__inner {
  border: none!important;
  outline: none!important;
}
.course_list .course_card {
  margin-bottom: 20px;
  height: 285px;
  background-image: url(/learn/static/imgs/npu/premium_courses_card_bg.png);
  background-size: 100% auto;
  background-repeat: no-repeat;
  padding: 15px;
  box-sizing: border-box;
  box-shadow: unset;
}
.course_list .course_card .course_title_wrap .course_title {
  font-weight: 600;
  font-size: 16px;
  color: #2A2A2A;
  line-height: 22px;
}
.course_list .course_card .course_title_wrap .platform_name {
  font-weight: 400;
  font-size: 14px;
  color: #999999;
  line-height: 20px;
  margin-top: 6px;
}
.course_list .course_card .cover_box {
  margin-top: 10px;
  border-radius: 6px;
  overflow: hidden;
}
.course_list .course_card .cover_box .cover {
  height: 160px;
}
.course_list .course_card .techer_wrap {
  margin-top: 14px;
  color: #2A2A2A;
  display: flex;
  align-items: center;
  font-size: 14px;
}
.course_list .course_card .techer_wrap .teacher a::after {
  content: '，';
}
.course_list .course_card .techer_wrap .teacher a:last-child::after {
  content: '';
}
.course_list .course_card .techer_wrap .college {
  margin-left: auto;
}
.course_list .course_card .techer_wrap .teacher,
.course_list .course_card .techer_wrap .college {
  max-width: 50%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.course_list .course_card .techer_wrap .iconfont {
  color: #BCBCBC;
  font-size: 12px;
  margin-top: -4px;
  margin-right: 4px;
}
.course_list .course_card .techer_wrap .iconfont.teacher_icon {
  border-radius: 99px;
  background-color: #F4F4F4;
  padding: 2px;
  box-sizing: content-box;
  margin-top: 2px;
}
.title_wrap {
  display: flex;
  justify-content: center;
  margin-top: 62px;
}
.title_wrap img {
  width: 448px;
}
.tags {
  display: flex;
  justify-content: center;
  margin-top: 40px;
  margin-bottom: 30px;
}
.tags .tag {
  width: 318px;
  height: 58px;
  line-height: 58px;
  text-align: center;
  background-image: url(/learn/static/imgs/npu/demonstration_tag.png);
  background-size: 100% 100%;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
}
.tags .tag + .tag {
  margin-left: 54px;
}
.tags .tag.active {
  color: #294AF3;
  background-image: url(/learn/static/imgs/npu/demonstration_tag_select.png);
}