.box-header {
  text-align: center;
  margin-top: -45px;
  z-index: 10;
  background-color: #fff;
  position: relative;
  box-shadow: 0 0 6px #eee;
}

.box-nav {
  background-color: #fff;
  width: 100%;
  height: 100px;
  text-align: center;
}
.box-nav li img {
  margin-top: 20px;
}
.box-nav li p {
  font-size: 14px;
  color: #666;
  margin-top: 10px;
}
.box-nav .about-active p {
  color: #3E82C8;
}

.about {
  margin-top: 100px;
  padding-bottom: 200px;
}

.box1 h3 {
  font-size: 24px;
  font-weight: bold;
}
.box1 p {
  margin-top: 50px;
  font-size: 18px;
  color: #333;
  line-height: 50px;
}

.box2 {
  text-align: center;
}
.box2 img {
  width: 100%;
}