.box-1 {
  /* height: 821px; */
  background: url('../img/banner1.jpg') no-repeat;
  background-size: 100% 100%;
}
.box-1 .box-content {
  padding: 320px 0 350px;
  text-align: center;
  font-size: 48px;
  font-weight: 400;
  color: white;
}

.box-3 {
  background-color: white;
}

.box-3 .content-body {
  margin: 0 auto;
  padding: 30px 0px 40px;
}
.box-3 .text-h1{
  font-size: 24px;
  font-weight: 650;
  color: #1566b1;
  text-align: center;
  margin-bottom: 30px;
}
.box-3 .development-history-img {
  text-align: center;
}

.box-4,.box-5 {
  height: 710px;
}

.box-4 .box-content,
.box-5 .box-content {
  position: relative;
}
.box-4 .proc-img,
.box-5 .proc-img{
  position: relative;
  height: 220px;
  background: url('../img/banner2.png') no-repeat;
  background-size: 100% 100%;
}

.box-4 .content-body,
.box-5 .content-body{
  position: absolute;
  top: 100px;
  left: 0;
  right: 0;
  bottom: 0;
  width: 1076px;
  height: 569px;
  margin: 0 auto;
  text-align: center;
  border-radius: 14px;
  background-color:rgba(255, 255, 255, 1);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
}