.banner {
  height: 680px;
  background: url('../img/group/1.png') no-repeat center center;
}
.content {
  padding-bottom: 120px;
}
.content .tab {
  border-bottom: 3px solid #EAEAEA;
  height: 70px;
}
.content .tab span {
  display: inline-block;
  padding: 0 20px;
  font-size: 16px;
  color: #333;
  position: relative;
  line-height: 70px;
  font-weight: bold;
}
.content .tab span.on {
  color: #007EFF;
}
.content .tab span.on i {
  background: #007EFF;
}
.content .tab span i {
  left: 0;
  bottom: -2px;
  width: 100%;
  position: absolute;
  height: 3px;
  background: #EAEAEA;
}