.banner{
  width: 100%;
  height: 550px;
  text-align: center;
  overflow: hidden;
  position: relative;
}
.banner img{
  height: 550px;
  margin: 0 -100%;
}
.banner .company{
  font-size: 48px;
  font-weight: 800;
  color: #F2F6F7;
  line-height: 48px;
  position: absolute;
  top: 231px;
  width: 100%;
}
.banner .company p:last-child{
  width: 100px;
  height: 10px;
  background-color: white;
  margin: 65px auto 0;
}
.common-box h3{
  color: #222222;
  font-size: 28px;
  padding: 99px 0 70px;
  font-weight: normal;
}
.company-info{
  height: 540px;
}
.company-info h3{
  background: url('../img/about/profile.png') no-repeat center 90px;
}
.company-info .company-font{
  width: 555px;
  margin-right: 76px;
  line-height: 26px;
}
.company-info .blue-box-left{
  width: 40px;
  height: 6px;
  background-color: #0261FF;
}
.company-info .company-font p:nth-child(1){
  margin: 28px 0 40px;
}
.company-info .company-img{
  position: relative;
  width: 563px;
  height: 311px;
}
.company-info .company-img .blue-box-right{
  width: 136px;
  height: 136px;
  background-color: #0261FF;
  position: absolute;
  bottom: 0;
  right: 0;
}
.company-info .company-img img{
  position: absolute;
  z-index: 3;
  top: 0;
  left: 0;
}
.development h3{
  background: url('../img/about/development.png') no-repeat center 90px;
}
.development{
  margin-bottom: 120px;
}
.development .development-right{
  left: 710px;
  text-align: left;
}
.development .development-left{
  text-align: right;
  right: 710px;
}
.development .development-box div{
  width: 65px;
  opacity: 0.1;
}
.development .development-box .develop-animation{
  width: 400px;
  opacity: 1;
  transition: all 2s linear;
}

.development .development-box .development-left-auto{
  width: 400px;
  transition: width 0.5s linear;
}
.development  .development-box div:nth-child(2){
  top: 160px;
}
.development  .development-box div:nth-child(3){
  top: 308px;
}
.development  .development-box div:nth-child(4){
  top: 460px;
}
.development  .development-box div:nth-child(5){
  top: 611px;
}
.development  .development-box div:nth-child(6){
  top: 765px;
}
.us-info{
  width: 100%;
  height: 720px;
  overflow: hidden;
}
.us-info img:first-child{
  left: 0;
  top: 0;
  height: 720px;
}
.us-info img:nth-child(2){
  left: 20%;
  width: 543px;
  top: 180px;
}
.us-info img:last-child{
  left: 44%;
  width: 720px;
  top: 125px;
}
.us-info .img-bg{animation: bgImg 1.5s;}
.us-info .img-about{animation: about 1.5s;}
.us-info .img-ipad{animation: ipad 3s;}

@keyframes bgImg{
  from {
    left: -100%;
  }
  to {
    left: 0%;
  }
}
@keyframes about{
  from {
    top: 720px;
  }
  to {
    top: 180px;
  }
}
@keyframes ipad{
  0% {
    top: -500px;
  }
  50% {
    top: 230px;
  }
  100% {
    top: 125px;
  }
}