.banner {
  height: 300px;
  background-image: url(../img/banner-2.png);
  background-position: center top;
  background-repeat: no-repeat;
}
.document-item {
  margin-top: 20px;
  border-bottom: 1px solid #efefef;
  padding-bottom: 20px;
}
.document-icon {
  width: 80px;
  height: 80px;
}
.document {
  margin-left: 15px;
}
.document .title {
  font-size: 20px;
  font-weight: bold;
  color: #666666;
}
.document .info {
  font-size: 16px;
  color: #666666;
  margin-top: 20px;
  padding-left: 10px;
}
.document-btn a {
  width: 90px;
  height: 40px;
  background-color: #3e8ddf;
  border-radius: 2px;
  color: #ffffff;
  line-height: 40px;
  text-align: center;
  display: inline-block;
}
.document-item:before,
.document-item:after {
  content: '';
  display: table;
}
.document-item:after {
  clear: both;
  overflow: hidden;
}
.document-item {
  zoom: 1;
}