.big{
    font-size: 30px;
    color: rgb(1,49,111);
    text-align: center;
    margin-top: 20px;
}
.eng{
    font-size: 20px;
    text-align: center;
    color: rgb(1,49,111);
    margin-bottom: 20px;
}
.fl1{
    background: url(images/7.jpg);
    width: 1200px;
    margin: auto;
    text-align: center;
    padding-top: 10px;
    padding-bottom: 20px;
}
.fl1 img{
    width: 90%;
}
.fl1 div{
  display: inline-block;
  margin-top: 20px;
}
.d_img{
    text-align: center;
    margin-top: 10px;
}
.zxbtn1{
    width: 300px;
    height: 40px;
    background-color: rgb(44, 84, 143);
    text-align: center;
    line-height: 40px;
    margin:30px auto;
    border-radius: 20px;
}
.zxbtn1 a{
    color: white;
    font-size: 20px;
}
.fl2{
    margin: auto;
    text-align: center;
    padding-top: 10px;
    padding-bottom: 20px;
}
.fl2 div{
    display: inline-block;
}
.wz{
    width: 1200px;
    margin:10px auto;
    font-size: 20px;
}