.about{ width:100%; height:auto; overflow:hidden; padding:70px 0 70px 0; background:#f3f3f3;}
.about1{ width:890px; margin:0 auto;}
.about1_1{color:#5b5b5b; font-size:32px; text-align:center;}
.about1_2{ color:#787878;font-size:14px; margin:27px 0 0 0;}
.about1_2 p{padding-bottom:5px;}
.about2{ width:100%; height:255px; background:url(../images/a8.jpg) no-repeat center; padding:155px 0 0 0;}
.about2_1{width:355px; margin:0 auto;}
.about2_2{ color:#fff; font-size:36px;}
.about2_3{ color:#fff; font-size:14px; text-align:center; margin:25px 0 0 0;}