@media only screen and (min-width: 320px){
    .introduce {
        font-size: 13.65px;
    }
}

@media only screen and (min-width: 360px){
    .introduce {
        font-size: 15.36px;
    }
}

@media only screen and (min-width: 375px){
    .introduce {
        font-size: 16px;
    }
}

@media only screen and (min-width: 390px){
    .introduce {
        font-size: 16.64px;
    }
}

@media only screen and (min-width: 414px){
    .introduce {
        font-size: 17.664px;
    }
}

@media screen and (min-width: 640px){
    .introduce {
        font-size: 27.31px;
    }
}