*{margin: 0;padding: 0;font-size: 12px}
body{
    width: 100%;
    max-width: 750px;
    margin: 0 auto;
    background: #e5e5e5;
}
.main{
    width: 100%;
    position: relative;
}
.top_bg{
    width: 100%;
    height: auto;
}
.top_tit{
    font-size: 1.6rem;
    text-align: center;
    font-weight: normal;
    border-top: 1px solid black;
    margin-top: 1rem;
    line-height: 5rem;
    color: #4f4f4f;
}
.form{
    width: 86%;
    margin: 0 auto;
}
.form label{
    display: block;
    font-size: 1.8rem;
    line-height: 5rem;
    letter-spacing: 3px;
}
.form select{
    border: 3px solid #595959;
    line-height: 5rem;
    width: 98%;
    display: block;
    height: 5rem;
    border-radius: 2rem;
    color: #595959;
    background: none;
    font-size: 1.6rem;
    padding: 0 1%;
    outline: none;
}
.form input{
    border: 3px solid #595959;
    line-height: 5rem;
    width: 95.5%;
    display: block;
    height: 5rem;
    border-radius: 2rem;
    color: #595959;
    background: none;
    font-size: 1.6rem;
    padding: 0 1%;
    outline: none;
}
.form .province{
    width: 30%;
    display: inline-block;
    margin-right: 7.5%;
}
.form .city{
    display: inline-block;
    width: 60%;
}
.sub{
    width: 50%;
    margin: 8rem auto;
    color: white;
    background: #3e4a92;
    border: none;
    line-height: 7rem;
    font-size: 2.5rem;
    border-radius: 1rem;
    text-align: center;
    display: block;
    letter-spacing: 1rem;
}
.intrduce{
    background: #f2f2f2;
    position: fixed;
    top: 7rem;
    left: 50%;
    transform: translateX(-50%);
    max-width: 640px;
    border-radius: 1rem;
    width: 90%;
    display: none;
    height: 40rem;
    box-shadow: 0px 0px 7px #b3b3b3;
}
.int_btn{
    font-size: 1.8rem;
    position: absolute;
    top: 20rem;
    right: 0;
    background: #2e9397;
    color: white;
    padding: 0 2rem;
    border-top-left-radius: 2rem;
    border-bottom-left-radius: 2rem;
    cursor: pointer;
}
.int_con{
    padding-bottom: 6rem;
}
.int_con h2{
    color: #434343;
    font-size: 2.6rem;
    text-align: center;
    margin-top: 1.6rem;
    margin-bottom: 1.2rem;
}
.int_con hr{
    border: none;
    border-bottom: 1px solid black;
    color: black;
    width: 88%;
    margin: 0 auto;
    margin-bottom: -1rem;
}
.int_content{
    width: 90%;
    margin: 0 auto;
    overflow: auto;
    height: 32rem;
    border-top: 1px solid black;
}
.int_con h3{
    font-size: 1.8rem;
    font-weight: 400;
    letter-spacing: 2px;
    margin-top: 2.5rem;
    color: #0c66a6;
    font-weight: bold;
}
.int_con p{
    font-size: 1.4rem;
    line-height: 2rem;
    margin-top: 1rem;
    color: #3e3d3d;
    margin-bottom: 1rem;
}
.close{
    position: absolute;
    right: 1.4rem;
    top: -2rem;
    color: #d50808;
    font-size: 1.5rem;
    border-radius: 50px;
    width: auto;
    height: 1.5rem;
    text-align: center;
    line-height: 1.5rem;
    cursor: pointer;
    font-weight: bold;
}

@media screen and (max-width: 414px) {
    .top_tit{
        font-size: 14px;
        text-align: left;
        line-height: 20px;
        padding-top: 1rem;
        width: 90%;
        margin: 1rem auto;
        margin-bottom: 2rem;
    }
    .int_btn{
        top: 11rem;
        padding: 0 1.2rem;
        font-size: 1.4rem;
    }
    .form label{
        font-size: 1.2rem;
        line-height: 2.6rem;
    }
    .form select{
        line-height: 2.5rem;
        height: 3.5rem;
        font-size: 1.2rem;
        border: 2px solid #595959;
        border-radius: 1rem;
    }
    .form input{
        line-height: 2.5rem;
        height: 3.2rem;
        font-size: 1.2rem;
        border: 2px solid #595959;
        border-radius: 1rem;
    }
    .form .province{
        width: 35%;
    }
    .form .city{
        width: 55%;
    }
    .sub{
       margin: 4rem auto;
        line-height: 3.6rem;
        font-size: 1.4rem;
        letter-spacing: 4px;
    }
    .int_con h2{
        font-size: 1.4rem;
    }
    .int_con h3{
        font-size: 1.3rem;
        letter-spacing: 0px;
    }
    .int_con p{
       font-size: 1.2rem;
        line-height: 26px;
        margin: 10px 0px;
    }
}