.clearfix:after {
  content: ".";
  clear: both;
  height: 0;
  overflow: hidden;
  visibility: hidden;
  display: block;
}
.clearfix {
  zoom: 1;
}
.container-xygy {
  width: 100%;
  height: 567px;
  background: url(../images/backdrop.png) no-repeat center top;
  overflow: hidden;
  margin: 30px 0;
}
.stud_wrap {
  height: 85px;
  border-bottom: 1px solid #D8D8D8;
}
.student_list ul {
  width: 1225px;
}
.student_list li {
  width: 285px;
  height: 407px;
  background: #FFFFFF;
  box-shadow: 0px 2px 9px 1px rgba(114, 117, 121, 0.2);
  border-radius: 8px;
  float: left;
  box-sizing: border-box;
  position: relative;
  margin-right: 19px;
  margin-bottom: 120px;
}
.content_title {
  padding: 0 14px;
}
.content_title .js {
  width: 257px;
  padding: 0 21px 41px 7px;
  height: 302px;
  margin-top: 20px;
}
.content_title .js p {
  font-size: 16px;
  font-family: Source Han Sans CN;
  font-weight: 400;
  color: #333333;
  line-height: 27px;
  text-indent: 2rem;
}
.stud_img {
  float: left;
  margin-right: 9px;
}
.stud_img img {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  display: block;
  margin-top: -12px;
}
.stud_text {
  float: left;
  display: flex;
  display: -webkit-flex;
  justify-content: center;
  flex-flow: column;
  height: 85px;
}
.stud_text p {
  font-size: 20px;
  font-family: Source Han Sans CN;
  font-weight: bold;
  color: #3C9DBD;
}
.stud_text span {
  font-size: 16px;
  font-family: Source Han Sans CN;
  font-weight: 400;
  color: #333333;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  word-break: break-all;
  width: 158px;
}
.sud_line {
  width: 5px;
  height: 44px;
  background: #3C9DBD;
  border-radius: 3px;
  position: absolute;
  top: 108px;
  right: 15px;
}
.changebtn {
  margin-top: 30px;
  margin-bottom: 16px;
  display: block;
  float: right;
  font-size: 14px;
  font-weight: 400;
  color: #666666;
  line-height: 20px;
  cursor: pointer;
  position: relative;
}
.changebtn:hover {
  color: #3C9DBD;
}
.nui-scroll {
  width: 200px;
  height: 310px;
  overflow: auto;
  color: #333;
}
.nui-scroll::-webkit-scrollbar {
  width: 5px;
  height: 8px;
}
.nui-scroll::-webkit-scrollbar-thumb {
  background-color: #3C9DBD;
  border-radius: 10px;
  height: 26px;
}
.nui-scroll:hover::-webkit-scrollbar-thumb {
  background-color: #1a9bd3;
  border-radius: 10px;
}
.nui-scroll::-webkit-scrollbar-thumb:hover {
  background-color: #1a9bd3;
}
.nui-scroll::-webkit-scrollbar-track {
  border-radius: 10px;
}