*{ margin:0; padding:0; font-family:"微软雅黑";}
body{ background:#cce8ff;}
img{ border:0;}
a{ text-decoration:none; color:#5b5b5b; font-size:12pt;}
li{ list-style:none;}
.fl{ float:left; }
.fr{ float:right}
.clear{ clear:both}
.mt18{ margin-top:18px;}
.mt15{ margin-top:15px;}
.mt12{ margin-top:12px;}

.topmain{ background:url(ztym3.png) no-repeat center; height:500px;}
.logo_N{ text-align:center; padding-top:90px;}

.w1020{ width:1000px; margin:0 auto; background:#fff; padding:10px;}