main .back{
    background-image: url(../images/backmm.png);
    background-repeat: no-repeat;
    background-size: 100% 100%;
    height: 982px;
    overflow: hidden;
}
.padd{
    padding: 0 60px;
}

main .back li .xx{
    background-color: #00a6af;
    width: 710px;
    height: 45px;
    padding: 0 15px;
    line-height: 45px;
    font-size: 28px;
    color: white;
    font-weight: 500;
    margin-top: 25px;
}
main .back li .xx p span{
    font-size: 20px;
    font-weight: 200;
}
main .back li .cont{
    width: 695px;
    font-size: 20px;
}
main .back li .border{
    width: 460px;
    border: 1px solid  #00a6af;
}
main .back li .dian{
    font-size: 20px;
    color: #00a6af;
    font-weight: 800;
}
main .back .conters{
    margin-top: 160px;
}
main .back .conters .lef{
    margin-top: 20px;
    width: 612px;
    height: 604px;
}
main .back .conters .rig{
    margin-left: 100px;
}
main .back .conters h2{
    font-size: 40px;

}
main .back .conters .p1{
    font-size: 30px;
    margin-top: 20px;
}
main .rig .tp img{
    margin: 25px 0;
}
main .rig .tp img:nth-child(2){
    margin-left: 30px;
}
main .rig .tp img:nth-child(3){
    margin-left: 30px;
}
main .rig li .conte{
    margin: 20px 0;
}