.public-step {
  width: 1200px;
  height: 480px;
  margin: 0 auto;
}
#lineAni {
  position: relative;
}
#lineAni .line {
  width: 1000px;
  position: absolute;
  left: 100px;
  top: 176px;
}
#lineAni div {
  width: 200px;
  height: 436px;
  float: left;
  position: relative;
}
#lineAni div img {
  width: 88px;
  position: absolute;
}
#lineAni div img.cImg {
  display: none;
}
#lineAni div p {
  width: 100%;
  text-align: center;
  font-size: 14px;
  color: #4A4A4A;
  line-height: 25px;
  position: absolute;
}
#lineAni div span {
  width: 10px;
  height: 10px;
  border-radius: 100px;
  background: #fff;
  border: 5px solid rgba(65, 130, 240, 0.5);
  display: block;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  top: 0;
  transition: border 0.5s;
  -webkit-transition: border 0.5s;
  /* Safari */
}
#lineAni div.box1 span {
  top: 229px ;
}
#lineAni div.box1 p {
  left: 0;
  top: 142px;
}
#lineAni div.box1 img {
  left: 56px;
  top: 266px;
}
#lineAni div.box1.now span {
  top: 233px;
  border: 1px solid rgba(65, 130, 240, 0.5);
}
#lineAni div.box2 span {
  top: 169px ;
}
#lineAni div.box2 p {
  left: 0;
  top: 220px;
}
#lineAni div.box2 img {
  left: 56px;
  top: 66px;
}
#lineAni div.box2.now span {
  top: 171px ;
  border: 1px solid rgba(65, 130, 240, 0.5);
}
#lineAni div.now .nImg {
  display: none;
}
#lineAni div.now .cImg {
  display: block;
}
#lineAni div.now p {
  color: #4182F0;
}