.bd{width:950px; margin:0 auto; margin-top:10px; margin-bottom:10px; padding:0;font-size:12px;font-family:"ËÎÌå","Arial Narrow";line-height:20px;clear:both; height:28px;background: url(tech_ch_nav_bg.png) top left repeat-x;}
.bd ul{padding-top:0px;padding-left:0px;margin:0 0 0 6px;}
.bd li{float:left;font-size:13px;color:#fff;margin:0;padding:2px 7px 0 9px;padding:3px 7px 0 9px\0;border:0;list-style:none;height:26px;line-height:26px;line-height:25px\0;}
.bd .linexian{width:2px;height:12px;background:url(nav_line.png) no-repeat;float:left;margin:6px 0px 0;display:inline}
.bd li a{color:#fff;text-decoration:none;}
.bd li a:visited{color:#fff;}
.bd li a:hover{color:#fff; text-decoration: underline;}
.bd .drop { color:#000; background: url(cursor_bghui.png) bottom left repeat-x; text-decoration:none}