@media (max-width:768px){
    .p1-i{margin-top: 15%;}
    .p1-i img{width: 85%}
    .pp2-z span{text-align: center;font-size: 30px;}
    .p3-z p{font-size: 20px;}
    .erweima li p img{width: 120px;height: 120px;}
    .erweima li p.t a{font-size: 18px;font-weight: bold;}
    .pp2-z{margin-top: 15%;}
}

@media (min-width:769px) and (max-width:991px){
    .pp2-z{font-size: 40px;}
    .p1-i img{width: 65%}
    .p3-z p{font-size: 28px;}
    .erweima li p.t a{font-size: 24px;}
}

@media (min-width:992px) and (max-width:1199px){
    .pp2-z{font-size: 45px;}
    .p1-i img{width: 65%}
    .p3-z p{font-size: 30px;}
}

@media (min-width:1200px) and (max-width:1399px){
    .pp2-z{font-size: 50px;}
    .p3-z p{font-size: 36px;}
}

@media (min-height:500px) and (max-height:640px){
    .p1-i{margin-top: 4%;}
    .p3-z{margin-top: 1.5%}
    .p3-z p{font-size: 30px;}
    .pp2-z{font-size: 40px;}
    .erweima li p img{width: 120px;height: 120px;}
    .erweima li p.t a{font-size: 24px;}
    .p1-i img{width: 55%}
}