.big{
    font-size: 2rem;
    color: rgb(0,49,115);
    font-weight: 600;
    text-align: center;
    margin-top: 2rem;
}
.eng{
    color: rgb(0,49,115);
    text-align: center;
    margin-bottom: 1rem;
}
.fl1{
    background-color: rgb(88, 192, 247);
    padding: 2rem 0;
}
.fl1 div{
    display: inline-block;
   width: 47%;
   margin: 1%;
   box-shadow:0 0 1px 0 black;;
}
.zxbtn{
    width: 50%;
    height: 2.5rem;
    margin:1rem auto;
    background-color: rgb(44, 84, 143);
    text-align: center;
    line-height: 2.5rem;
    border-radius: 20px;
}
.zxbtn a{
    color: white;
    font-size: 1.4rem;
}
.fl2 div{
    display: inline-block;
   width: 47%;
   margin: 1%;
}
.wz{
    color: rgb(0,49,115);
    padding: 0 .5rem;
    font-size: 1.1rem;
    margin-top: .5rem;
}
.fl3 div{
    display: inline-block;
   width: 47%;
   margin: 1%;
}