.wrap{ width: 1000px; margin: 0 auto;}
.wrap .top{width: 100%; height: 70px; color: #000000; border-bottom: 1px solid #b5b5b5; overflow: hidden;}
.wrap .top a{display: inline-block;}
.wrap .top span{ display:inline-block;margin:38px 5px;}
.main .main-top{width: 1000px;height: 175px;border-bottom:1px solid #b5b5b5;margin: 0 auto;overflow: hidden;}
.main .main-top ul{width: 100%;height: 100px;margin-top: 45px;}
.main .main-top ul li{ width: 100px; width: 70px; height: 100px; float: left;}
.main .main-top ul li.margin20{ margin: 0px  10px;}
.main .main-top ul li a{display: inline-block; width: 112px;width: 70px; height: 100px; text-align: center;}
.main .main-top ul li img{ display: block; margin-left: 17px;margin-left: 5px; margin-bottom: 15px; margin-top: 10px; position:relative;}
.main .block{ display: none;}
.main .main-bottom{width: 820px;overflow: hidden;clear: left;margin: 0 auto;padding-top: 30px;padding-bottom: 44px;}
.main .main-bottom ul{ width: 100%; clear: left; overflow: hidden;}
.main .main-bottom ul li{float: left;width: 256px;height:40px;padding-left: 17px;background:url("../images/li-bg.png") 0px 3px no-repeat;}
.main .main-bottom ul li a{ color:#000000;}