.tips{
  padding: 20px 0px;
}
.tips .tips_box {
  align-items: baseline;
}
.tips .tips_box p{
  width: 80px;
}
.tips .tips_box div {
  flex: 1;
}
.tips .tips_box div span{
  display: inline-block;
  height: 3vh;
  line-height: 3vh;
  padding: 0px 1vw;
  border-radius: 2vh;
  cursor: pointer;
}
.tips .tips_box div .active{
  background-color:#F1F6FF;
  color: #008CD7;
}
.course{
  min-height: calc(100vh - 300px);
  background-color: #F6FAFF;
  padding: 3vh 0px;
  box-sizing: border-box;
}
.course .none{
  text-align: center;
  margin: 2vw 0;
}
.course #course{
  width: 100%;
  display: grid;
  grid-gap:15px;
  grid-template-columns: repeat(4,1fr);
}
.course ul img{
  width: 100%;
  /* height: 14vw;
  max-height: 200px; */
  aspect-ratio: 1.6/1;
}
.course ul li{
  overflow: hidden;
  font-size: 0;
  background-color: #fff;
}
.course ul li div{
  padding: .5vw 1vw;
}
.course ul li .line{
  border-bottom: 1px solid #eee;
}
.course ul li .line h2{
  width: 100%;
  margin-bottom: .2vw;
}
.course ul li .line span{
  margin-right: 4px;
}
.course ul li div span,p{
  color: #666;
}
.course ul li div p:first-child{
  width: 70%;
}

.course .search{
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 3vh;
}
.course .search input{
  width: 30%;
  min-width:200px;
  height: 40px;
  border: 1px solid #DADADA;
  padding: clamp(10px, 0.828rem + 0.2vw, 15px);
  box-sizing: border-box;
}
.course .search button{
  width: 80px;
  height: 40px;
  line-height: 40px;
  box-sizing: border-box;
  background-color: #008CD7;
  color: #fff;
  cursor: pointer;
}