.a_box{
  padding-top:60px;
}
@media(max-width:1300px){
  
.a_box{
  padding-top:40px;
}
}
@media(max-width:768px){
.a_box{
  padding-top:30px;
}
}
.a_box{
  display:flex;
}
.a_btn{
  display:flex;
  align-items:center;
}
.a_line{
  width:14px;
  height:1px;
  background:#222;
  transition:all 0.5s ease;
}
.a_more{
  padding:15px;
  font-size:18px;
  color:#222;
  transition:all 0.5s ease;
}
.a_right{
  width:56px;
  height:56px;
  line-height:54px;
  border:1px solid #b6b6b6;
  color:#000;
  font-size:14px;
  text-align:center;
  border-radius:50%;
  margin-right:15px;
  transition:all 0.5s ease;
}
.a_right .iconfont{
  font-weight:700;
}
.a_down{
  position:relative;
  color:#fff;
  border-color:#fff;
  transform:rotate(90deg);
}
.a_btn:hover .a_line{
  width:40px;
  background:#da251c;
}
.a_btn:hover .a_more{
  color:#da251c;
}
.a_btn:hover .a_right{
  border-color:#da251c;
  background:#da251c;
  color:#fff;
}
/*按钮*/
/*锚点*/
.a_part{
  position:relative;
  top:-100px;
}
/*锚点*/
@media(max-width:768px){
  .a_more{
    padding:10px 15px;
    font-size:16px;
  }
  .a_right{
    width:40px;
    height:40px;
    line-height:38px;
  }
  
  .a_part{
  position:relative;
  top:-60px;
}
}