.paperItem {
  position: relative;
}
.paperImg {
  flex: 0 0 267px;
  height: 150px;
  border-radius: 5px;
  overflow: hidden;
}
.paperDesc {
  overflow: hidden;
}
.paperTitle {
  position: relative;
  z-index: 3;
}
.paperTitle:hover {
  color: #0091FF;
}
.paperLink {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 0;
}
.doiLink {
  color: #0091FF;
  text-decoration: underline;
  position: relative;
  z-index: 5;
}
.abstract {
  background: #F9F9F9;
  padding: 20px 25px;
}
.cnAbstract {
  background: none;
}
.morePaper {
  flex: 0 0 300px;
}
.paperMsg, .recommendPaper {
  background: #F1F9FF;
  padding: 20px;
}
.paperMsg .msgLabel {
  flex: 0 0 85px;
  margin-right: 15px;
}