.ibanner{ width:100%; padding:180px 0; color:#fff; font-size:64px; font-weight:bold;}
.contact_banner{ text-align:center; line-height:200%;}

.contact_content{ padding:40px 0 160px; line-height:180%; text-align:center; font-size:26px; font-weight:lighter; width:800px;}
.contact_content h6{ font-size:44px; padding-top:70px; padding-bottom:20px;}
.contact_content em{ font-style:normal; font-size:60px;}
@media (min-width: 75em) {/*宽屏*/
html{font-size:19px;/*10px*/}
}
@media (max-width: 1200px) {/*窄屏*/ 
}
@media (max-width: 990px) { /*ipad*/
}
@media (max-width: 767px) { /*手机尺寸*/
.ibanner{padding:70px 0;font-size:24px;}
.contact_banner{  line-height:150%;}


.contact_content{ padding:20px 0 60px; line-height:140%; text-align:center; font-size:16px; width:100%;}
.contact_content h6{ font-size:24px; padding-top:30px; padding-bottom:10px;}

.contact_content em{ font-size:28px; padding-left:5px; vertical-align:middle;}
}