body {
  background: #3498db;
}
#head {
  height: 60px;
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  align-items: center;
}
#head .box {
  width: 90%;
  height: 40px;
  display: flex;
  flex-direction: row;
  justify-content: flex-end;
}
#head .box img {
  width: 40px;
  height: 40px;
}
#section1 {
  height: 495px;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  background-size: cover;
  background-position: center;
}
#section1 .box {
  width: 580px;
  height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
#section1 .box h1 {
  color: #FFFFFF;
  font-size: 40px;
}
#section1 .box p {
  font-size: 18px;
  margin: 30px 0;
  color: #FFFFFF;
}
#section2 {
  height: 350px;
  display: flex;
  flex-direction: row;
  justify-content: space-around;
}
#section2 .box {
  width: 1140px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
}
#section2 .box .center {
  height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  color: #FFFFFF;
}
#section2 .box .center h1 {
  font-size: 40px;
}
#section2 .box .center h2 {
  font-size: 35px;
}
#section3 {
  height: 850px;
  display: flex;
  flex-direction: row;
  justify-content: space-around;
}
#section3 .box {
  width: 1140px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
}
#section3 .box .center {
  height: 750px;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}
#section3 .box .center .left {
  width: 800px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
#section3 .box .center .left .top {
  height: 435px;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}
#section3 .box .center .left .top .co {
  width: 386px;
}
#section3 .box .center .left .top .co .pic {
  height: 270px;
  background-size: cover;
}
#section3 .box .center .left .top .co .text {
  height: 160px;
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  background: #ededed;
}
#section3 .box .center .left .top .co .text h1 {
  margin-left: 10px;
  color: #707070;
}
#section3 .box .center .left .top .co .text p {
  font-size: 14px;
  color: #707070;
  line-height: 24px;
  margin: 0 10px;
}
#section3 .box .center .left .bot {
  height: 290px;
  display: flex;
  flex-direction: row;
  background: #ededed;
}
#section3 .box .center .left .bot .text {
  width: 415px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
#section3 .box .center .left .bot .text h1 {
  font-size: 40px;
  margin-left: 10px;
  color: #707070;
}
#section3 .box .center .left .bot .text p {
  font-size: 14px;
  color: #707070;
  line-height: 24px;
  margin: 20px 10px;
}
#section3 .box .center .left .bot .pic {
  width: 385px;
  height: 270px;
  background-size: cover;
}
#section3 .box .center .right {
  width: 320px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
#section3 .box .center .right .pic {
  height: 560px;
  background-size: cover;
}
#section3 .box .center .right .text {
  height: 215px;
  background: #ededed;
}
#section3 .box .center .right .text p {
  font-size: 14px;
  color: #707070;
  line-height: 24px;
  margin: 15px 10px;
}