#nav{ width:1002px; margin:0 auto; padding:0px; position:relative; z-index:99; }
#nav dt{height:30px; padding-top:22px; position:relative;}
#nav dt a{ position:absolute; display:block;height:30px; color:#656565;  font-size:15px; font-weight:bold;}
#nav dd{ position:absolute; overflow:hidden; display:none; z-index:200; height:170px; width:1002px; top:30px; left:0px; margin-top:22px; background:#fff;}
#nav dd ul{float:left; height:170px; padding:0; padding-top:21px;}
#nav dd ul li{overflow:hidden;}
#nav dd ul li,#nav dd ul li a{ display:block; height:25px; float:left; line-height:25px; text-align:center; width:100px; border-bottom:1px dotted #ccc;}
#nav dd ul li a{ color:#666;}
#nav dd ul li a:hover{color:#cc0000; text-decoration:none;}


#one_about,#one_industry,#one_product,#one_news,#one_cultural,#one_people,#one_contact,#two_about,#two_industry,#two_product,#two_news,#two_cultural,#two_people,#two_contact{width:120px; text-align:center; padding:0px 10px;}

#one_home,#two_home{width:145px; text-align:center;}
#two_home{ margin-left:10px; *margin-left:5px;}
#one_home{ padding-left:15px;}
#one_about{ left:135px; display:none;}
#one_industry{ left:258px; display:none;}
#one_product{ left:378px;}
#one_news{ left:498px;}
#one_cultural{ left:617px;}
#one_people{ left:737px;}
#one_contact{left:858px;}
#one_home.curr,#one_about.curr,#one_industry.curr,#one_product.curr,#one_news.curr,#one_cultural.curr,#one_people.curr,#one_contact.curr{ background:url(/uploads/image/tdimages/ico_04.gif) no-repeat bottom center; color:#ee191f;}
.logo_home{ background:url(/uploads/image/tdimages/pic_01.gif) no-repeat 0px 18px;}
.logo_about{ background:url(/uploads/image/tdimages/pic_01.gif) no-repeat 0px 18px;}
.logo_industry{ background:url(/uploads/image/tdimages/pic_02.gif) no-repeat 0px 18px;}
.logo_product{ background: no-repeat 0px 18px;}
.logo_news{ background:url(/uploads/image/tdimages/pic_04.gif) no-repeat 0px 18px;}
.logo_cultural{ background:url(/uploads/image/tdimages/pic_05.gif) no-repeat 0px 18px;}
.logo_people{ background:url(/uploads/image/tdimages/pic_06.gif) no-repeat 0px 18px;}
.logo_contact{ background: no-repeat 0px 18px;}