.top_banner {
  width: 100%;
  height: 200px;
  background-color: #edf6ff;
  display: flex;
  justify-content: center;
}

main {
  height: auto;
  width: 1200px;
  margin: 0 auto;
}
.title_box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 30px;
}
.title_box a {
  font-family: "MicrosoftYaHei";
  font-size: 40px;
  font-weight: bold;
  font-stretch: normal;
  letter-spacing: 4px;
  color: #2888e3;
  text-align: center;
}

.title_box::before,
.title_box::after {
  content: "";
  height: 5px;
  width: 360px;
  display: inline-block;
  border-top: 2px skyblue solid;
  border-bottom: 1px skyblue solid;
}

.zzt {
  margin-top: 20px;
}

.tujie_list {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
}

.tujie_list article {
  position: relative;
  height: auto;
  width: 200px;
  margin: 23px 20px;
  background: #ffffff;
  box-shadow: 0px 2px 14px 0px rgb(21 38 51 / 10%);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}
.tujie_list article img {
  width: 100%;
  height: 137px;
}
.tujie_list article span {
  padding: 10px;
  font-size: 18px;
  margin: 0;
}

.tujie_list article i {
  line-height: 30px;
  color: #999999;
  margin-left: auto;
  margin-right: 19px;
  margin-bottom: 9px;
}

.jiedu_list {
  padding: 0px 30px;
  position: relative;
  z-index: 111;
  background-image: linear-gradient(0deg, #f3faff 0%, #ffffff 100%);
  box-shadow: 0px 0px 18px 0px rgba(196, 231, 251, 0.55);
  overflow: hidden;
}

.list_more{
  display: inline-block;
  width: 100%;
  text-align: right;
  padding-right: 20px;
  height: 30px;
  line-height: 30px;
}

.jiedu_item {
    display: block;
    padding-left: 20px;
    background: url(dian.png) no-repeat left center;
    margin: 5px 0;
}

.jiedu_item a {
  display: inline-block;
  font-family: MicrosoftYaHei;
  font-size: 16px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 35px;
  letter-spacing: 0px;
  color: #333333;
  max-width: 90%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.jiedu_item .jiedu_item_date {
  float: right;
  font-family: MicrosoftYaHei;
  font-size: 16px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 35px;
  letter-spacing: 0px;
  color: #999999;
}
.jiedu_item_date::after {
  content: "";
  clear: both;
}

footer {
  margin-top:30px !important;
}

.mobile_type .top_banner{
  width: 100%;
  height: auto;
}

.mobile_type .top_banner img{
  width: 100%;
  height: auto;
}

.mobile_type main {
  width: 100%;
}

.mobile_type .zzt img{
  width: 100%;
  height: auto;
}

.mobile_type .title_box {
  width: 100%;
}

.mobile_type .title_box a{
  width: 100%;
}
.mobile_type .title_box::before,
.mobile_type .title_box::after {
  display: none;
}

.mobile_type .tujie_list article {
  width: 100%;
}

.mobile_type .tujie_list article img {
  height: auto;
}

.mobile_type .jiedu_list {
  margin-left: 5px;
  margin-right: 5px;
  padding: 0 15px;
}

.old_type .tujie_list {
  gap: 46px 40px;
  margin-top: 23px;
}

.old_type .tujie_list article {
  flex-basis: calc((100% - 120px) / 4);
  margin: 0;
}

.old_type .tujie_list article img {
  height: auto;
}

.old_type article a {
  font-size: 28px;
}

.old_type .jiedu_list a {
  font-size: 28px;
}

.old_type i {
  font-size: 28px;
}

.old_type .jiedu_item_date {
  font-size: 28px;
}