body,html{
  margin: 0;
  padding: 0;
}
.main{
  width: 1200px;
  margin: 0 auto;
}
.header-content{
  width: 100%;
  color: #fff;
}
.header{
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgb(255, 198, 0);
  height: 43px;
  font-size: 16px;
}
.code-content{
  width: 100%;
  margin-top: 100px;
}
.code-content-box{
  width: 700px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo-code{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.logo-code img{
  margin-bottom: 20px;
}
.logo-code span{
  font-size: 15px;
}
.logo-img{
  width: 150px;
}
.code-img{
  width: 120px;
  height: 120px;
}
.hand{
  margin-left: 50px;
}
.hand-img{
  width: 200px;
}
.introduce{
  width: 800px;
  margin: 0 auto;
  margin-top: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.introduce span{
  display: inline-block;
  height: 36px;
  line-height: 36px;
  padding: 0 20px;
  text-align: center;
  color: #fff;
  font-size: 14px;
  background: rgb(255, 198, 0);
  margin: 0 20px;
}
.aboutus-title{
  width: 1000px;
  margin: 0 auto;
  margin-top: 100px;
  font-weight: bold;
  font-size: 16px;
}
.aboutus-title span{
  display: inline-block;
  width: 2px;
  height: 15px;
  background: rgb(255, 198, 0);
  margin-right: 10px;
}
.aboutus-desc{
  width: 1000px;
  margin: 0 auto;
  margin-top: 25px;
  font-size: 14px;
  color: #333;
  line-height: 26px;
}
.footer{
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 50px;
  line-height: 50px;
  text-align: center;
  font-size: 14px;
  color: #333;
}