@charset "gb2312";
*{margin:0; padding:0; list-style:none;}
img{border:0; vertical-align:top;}
a{text-decoration:none; color:#626262;}
a:hover{text-decoration:underline;}
em,i{font-style:normal;}
.clearfix{overflow:hidden; zoom:1;}
.mb20{margin-bottom:20px;}
body{font-size:12px; font-family:Arial; font-size:12px; color:#626262; line-height:180%;}
.header{height:93px; width:1200px; margin:0 auto; position:relative;}
.header .logo{position:absolute; left:0; top:10px;}
.header .htop{position:absolute; right:0; top:10px;}
.header .htop a{margin:0 4px;}
.header .search input{vertical-align:middle;}
.header .search{position:absolute; right:0; top:40px;}
.header .search .btn_txt{border:solid 1px #90908c; background:#fff; height:20px; line-height:20px; width:200px;}
.mian_nav{background:url(nav_bg2.gif) repeat-x left bottom; height:50px;}
.mian_nav .cont{width:1200px; margin:0 auto;}
.mian_nav li{float:left;}
.mian_nav li a{display:block; float:left;  height:47px; cursor:pointer;}
.mian_nav li a:hover{text-decoration:none;}
.mian_nav li a span{display:block; height:35px; float:left; text-align:center;line-height:100%; font-weight:bold; font-size:14px; padding:18px 20px 0;}
.mian_nav li a span em{display:block; margin:0 auto; font-size:11px; font-weight:normal;}
.mian_nav li.current a,.mian_nav li:hover a{background:url(nav_bg_on2.fw.png) no-repeat left top; color:#fff; padding-left:20px;}
.mian_nav li.current span,.mian_nav li:hover span{background:url(nav_bg_on2.fw.png) no-repeat right top; padding-right:20px; padding-left:0;}
.mian_nav li a:hover{background:url(nav_bg_on2.fw.png) no-repeat left top; color:#fff; padding-left:20px;}
.mian_nav li a:hover span{background:url(nav_bg_on2.fw.png) no-repeat right top; padding-right:20px; padding-left:0;}
.mian_nav li.line{width:1px; background:#c6c6c6; overflow:hidden; height:25px; margin:13px 15px 0; }
.mian_nav li a.hover{background:url(nav_bg_on2.fw.png) no-repeat left top; color:#fff; padding-left:20px;}
.mian_nav li a.hover span{background:url(nav_bg_on2.fw.png) no-repeat right top; padding-right:20px; padding-left:0;}

.mian_nav li {position:relative;}
.mian_nav li div {position:absolute; left:-30px; top:47px; width:158px; display:none; background:url(nav_div_bg.png) repeat-x 0 0; border:1px solid #185E9C;}
.mian_nav li:hover div {display:block;}
.mian_nav li div dl { width:150px; border-bottom:2px solid #333; padding:5px 14px 10px;}
.mian_nav li div dl dt { float:none; padding:4px 0 5px; background:url(div_line.jpg) no-repeat center bottom; width:100%;}
.mian_nav li div dl dt a,.mian_nav li.current div dl dt a,.mian_nav li:hover div dl dt a { display:block; float:none; height:25px; color:#4f4f4f; background:none; width:100%; padding:0; line-height:25px; text-align:center; font-size:14px; font-weight:bold;}
.mian_nav li div dl dt a:hover {background:#90C2E7; padding:0; color:#4f4f4f;}
.mian_nav li div.product { background:url(nav_div_bg1.png) repeat-x 0 0; width:340px;}
.mian_nav li div.product dl { width:340px; height:270px; padding: 5px 0 10px;}
.mian_nav li div.product dl dt { float:left; width:150px; padding:0 20px; background:none; height:130px;}
.mian_nav li div.product dl dt strong {display:block; background:url(div_line1.jpg) no-repeat center bottom; padding:4px 0 5px; width:100%;}
.mian_nav li div.product dl dt a {font-size:12px; font-weight:normal; margin-top:5px;}
.mian_nav li div.product dl dt strong a { font-size:14px; font-weight:bold;}

.mian_nav li div.engineer { background:url(nav_div_bg1.png) repeat-x 0 0;}
.clear {clear:both;}

.col_index{width:990px; margin:10px auto 10px;}
.col_index_a{padding:10px 0 0;width:990px; margin:0 auto 10px;}
.col_left{width:780px; float:left;}
.col_right{width:207px; float:right;}
.col_index_a .left{width:320px; float:left;}
.col_index_a .mid{width:410px; float:left; padding-left:38px;}
.col_index_a .right{width:202px; float:right;}
.col_index_a .right li{margin-bottom:7px;}
.sub_nav_index{background:url(f_bg.jpg) no-repeat 4px bottom; padding:0 0 10px;}
.sub_nav_index ul{padding-left:15px;}
.sub_nav_index li{margin-top:4px}
.sub_nav_index h3{background:url(bg_sub.gif) no-repeat; height:49px; line-height:49px; margin-bottom:10px; padding:0 10px;}
.sub_nav_index em{color:#999; font-size:20px; font-family:Arial;}
.sub_nav_index h3 .more{color:#0069CC; font-size:14px; float:right;}
.tab{border-bottom:solid 1px #0076cc; height:36px; line-height:36px;position:relative; overflow:hidden; margin-bottom:8px;}
.tab ul{position:absolute; left:0; bottom:0px;}
.tab .more{position:absolute; right:0; color:#0069CC; font-size:12px; font-weight:bold;}
.tab li{float:left; background:url(tab_bg1.gif) no-repeat left bottom; padding-left:10px; text-align:center; cursor:pointer; margin:2px 5px 0 0; display:inline; font-size:14px;}
.tab li span{display:block; height:34px; line-height:34px; background:url(tab_bg1.gif) no-repeat right bottom; padding-right:10px; float:left;}
.tab li.current{background:url(tab_bg2.gif) no-repeat left bottom; padding-left:10px; margin-top:0; color:#217CCF; font-weight:bold;}
.tab li.current span{background:url(tab_bg2.gif) no-repeat right bottom; padding-right:35px; height:36px; line-height:36px;}
.news_index .info li{height:26px; line-height:26px;}
.news_index .info li span{float:right;}
.footer{width:1200px; margin:0 auto;}
.copyright{overflow:hidden; zoom:1; border-top:solid 2px #cccdcf; padding:20px 0 25px 160px; position:relative;}
.copyright dt{float:left; margin-right:5px;}
.copyright dd{overflow:hidden; zoom:1;}
.copyright dt.gslz { position:absolute; left:20px; top:30px; width:30px; height:29px; overflow:hidden; margin:0; float:none;}
.copyright dt.gslz img { padding:40px;background:url(gs1.gif) no-repeat;}
.copyright dt.gslz a:hover img { background:url(gs2.gif) no-repeat;}
.service{background:url(bg_2.gif) no-repeat; width:990px;position:relative; padding:5px; margin-bottom:10px;}
.service ul{overflow:hidden; zoom:1; height:75px; padding:0px 5px 0; background:url(bg_3.gif) no-repeat; width:978px; height:96px;}
.service li{float:left; width:250px; color:#999999; padding:10px 0 0;}
.service li strong{display:block; font-size:14px; color:#000;}
.service li p{width:130px;}
.service li a { display:block;}
.service li.s1{padding-left:99px; width:149px;}
.service li.s2{padding-left:83px; width:149px;}
.service li.s3{padding-left:105px; width:149px;}
.service li.s4{padding-left:86px; width:149px;}
.service .link{text-align:center; line-height:35px;}
.service .link a{margin:0 10px;}
.service .sel{position:absolute; right:20px; bottom:8px;}
.friendlink{font-size:13px; line-height:21px; margin-bottom:5px;}
.friendlink a{margin-right:10px;}
.service_1{background:url(bg_4.gif) no-repeat; height:36px; position:relative; padding:0;}

.pic_news,.pic_news dl{overflow:hidden; zoom:1;}
.pic_news dt{float:left; margin-right:8px;}
.pic_news dd{overflow:hidden; zoom:1;}
.pic_news dd strong{font-size:14px;}
.news_index_a{overflow:hidden; zoom:1; padding:0 0 10px; margin-bottom:10px;}
.news_index_a dl{float:left; width:270px;}
.news_index_a dt{margin-bottom:4px;}
.news_index_a dt strong{font-size:14px; margin-right:5px;}
.news_index_a ul{float:right;}
.news_index_a li{float:left; width:26px; border-right:solid 2px #b3b3b3; text-align:center; font-size:14px; padding:3px 0;}
.news_index_a li.current{color:#666; font-weight:bold;}
.news_index_a li.current a{color:#666;}
.news_index_a li a:hover{text-decoration:none;}
.news_index_a li.last{border:0;}
.banner{background:url(banner_bg.jpg) no-repeat center top; height:350px; text-align:center;}
.banner_news{background-image:url(banner_news.jpg);}
.banner_service{background-image:url(banner_service.jpg);}
.banner_job{background-image:url(banner_job.jpg);}
.banner_contact{background-image:url(banner_contact.jpg);}
.banner_about{background-image:url(banner_about.jpg);}
.banner_gongcheng{background-image:url(banner_gongcheng.jpg);}
.banner_product{background-image:url(banner_product.jpg);}

.col_all{width:990px; margin:0 auto 11px; margin-top:-23px;}
.col_sub{width:221px; float:left;}
.col_main{width:750px; float:right;}
.sub_nav{width:221px; background:url(f_bg1.gif) no-repeat 4px bottom; padding:0 0 25px; margin:0 0 10px;}
.sub_nav h3{background:url(bg_sub1.gif) no-repeat; height:49px; line-height:49px; margin:0 0 11px; padding:0 0 0 10px; color:#a1a1a1; font-size:20px;}
.sub_nav h3 em{font-style:normal; color:#0069CC; font-size:14px; font-family:microsoft yahei;}
.sub_nav ul{padding-left:7px; width: 205px;}

.search_sub{margin-bottom:12px; padding:0 7px;}
.search_sub strong{font-size:14px;}
.search_sub input{vertical-align:middle;}
.search_sub input.btn_txt{border:solid 1px #ababa9; background:#fff; height:23px; width:143px;}
.company{margin-bottom:12px; width:196px; padding:0 7px 10px; border-bottom:solid 1px #ddd;}
.company dt{margin-bottom:7px;}
.ad{text-align:center; margin-bottom:12px;}
.main_box{border:solid 1px #d7d7d7;repeat-x center bottom; padding:20px 22px 20px;}
.mbx{border-bottom:solid 1px #ddd; padding:0 10px 4px; margin-bottom:15px;}
.mbx strong{font-size:16px; float:right; color:#006AC9;}
.mbx p{background:url(ico1.gif) no-repeat left center; padding-left:30px; font-size:12px;}
.list_a dl{overflow:hidden; zoom:1; border-bottom:dashed 1px #ccc; padding:12px 10px;}
.list_a dt{float:left; margin-right:12px; display:inline;}
.list_a dt img{border:solid 1px #cbcbcb; padding:6px;}
.list_a dd{overflow:hidden; zoom:1;}
.list_a dd strong{display:block; font-size:14px; color:#222;}
.list_a dd strong a{color:#222;}
.list_a .op{margin-top:10px;}

.list_b li{ border:solid 1px #bab9af; background:url(bg_re1.gif) repeat-x left bottom; margin:0 0 12px; width:700px; padding:12px 0px; position:relative;}
.list_b li em{font-size:50px;color:#006AC9; font-family:Verdana; font-weight:bold; position:absolute; left:10px; top:30px; line-height:100%;}
.list_b dl{overflow:hidden; zoom:1; padding:0 10px 0 70px;}
.list_b dt{float:left; margin-right:12px; display:inline;}
.list_b dt img{border:solid 1px #cbcbcb; padding:6px;}
.list_b dd{overflow:hidden; zoom:1;}
.list_b dd strong{display:block; font-size:14px; color:#222;}
.list_b dd strong a{color:#222;}
.list_txt{padding:0 10px;}
.list_txt li{border-bottom:solid 1px #ddd; padding:10px 0; overflow:hidden; zoom:1;}
.list_txt li a{color:#003466;}
.list_txt strong{display:block; font-size:14px; margin-bottom:3px;}
.list_txt .more{text-align:right;}
.list_txt a.btn_more{color:#fff;}
.list_txt .fr{float:right; width:114px; text-align:center; border-left:solid 1px #ddd; height:60px; padding:10px 0 0;}
.list_txt .fr .btn_more{margin-bottom:5px;}
.list_txt .fl{width:525px; float:left;}
.xg{border:solid 1px #a9c5e9; background:#d3e1f3; display:inline-block; padding:2px 8px; margin-top:5px; color:#333;}
a.btn_more{background:url(btn5.gif) no-repeat; width:88px; height:21px; line-height:21px; display:inline-block; font-size:12px; font-weight:bold; color:#fff; text-align:center;}
a.btn_more:hover{text-decoration:none;}
.link_a{background:url(btn6.gif) no-repeat; width:90px; height:23px; line-height:23px; text-align:center; display:inline-block;}
.list_pro { overflow:hidden; zoom:1;}
.list_pro dl{font-size:14px;width:322px; float:left; height:290px; padding:0 15px;}
.list_pro dt{margin-bottom:8px;}
.list_pro dd strong{font-size:14px;}
.list_pro dd p{padding:5px 0 5px;}
.list_pro dt img{border:solid 1px #ddd; padding:5px;}
.list_pro .btn_more{float:right;}
.address{background:url(bg_5.jpg) no-repeat; height:415px; position:relative; color:#000; line-height:210%;}
.address dt{font-size:14px; font-weight:bold;}
.address dl{position:absolute; top:210px; left:40px;}
.tbl_a table{border-left:solid 1px #ccc;border-top:solid 1px #ccc; margin-bottom:20px;}
.tbl_a td{border-right:solid 1px #ccc; border-bottom:solid 1px #ccc; padding:1px;}
.pro_type{border-bottom:solid 1px #ddd; padding:5px 15px; font-size:14px; font-weight:bold; margin-bottom:10px;}
.pro_type a{display:inline-block; background:url(bg7.gif) no-repeat left 0; padding-left:10px;}
.pro_type a:hover{text-decoration:none;}
.pro_type a span{display:inline-block; background:url(bg7.gif) no-repeat right 0; padding-right:10px; line-height:27px;}
.pro_type .current{background-image:url(bg6.gif);}
.pro_type .current span{background-image:url(bg6.gif); color:#fff;}
.the_article{line-height:230%;}
.the_article p{padding:0 15px; margin-bottom:10px;}
.the_article h1{font-size:18px; text-align:center; padding:10px 0 10px;}
.the_article .meta{text-align:center; border-top:dotted 1px #ddd; border-bottom:dotted 1px #ddd; margin-bottom:15px;}
.the_article .xg{display:block; margin-bottom:15px;}
.meta1{border-top:solid 1px #ddd; padding:5px 0 20px; margin:5px 30px 0;}
.meta1 .right{float:right;}
.rightpic{float:right;}
.zhengshu{overflow:hidden; zoom:1;}
.zhengshu dl{float:left; text-align:center; padding:0 10px; height:350px;}
.zhengshu dt{width:206px;border:solid 1px #ddd; padding:5px 0; overflow:hidden; text-align:center; margin-bottom:6px;}

.zhengshu1{overflow:hidden; zoom:1;}
.zhengshu1 dl{float:left; text-align:center; padding:0 10px; height:205px;}
.zhengshu1 dt{width:206px;border:solid 1px #ddd; padding:5px 0; overflow:hidden; text-align:center; margin-bottom:6px;}

.list_pic{overflow:hidden; zoom:1;}
.list_pic img{border:solid 1px #ddd; padding:3px;}
.list_pic dt{margin-bottom:6px;}
.list_pic dl{float:left; text-align:center; width:350px; height:255px; font-weight:bold;}
.list_pic1 dl{width:234px; height:195px;}
.contact{line-height:230%; padding:20px 20px 20px; overflow:hidden; zoom:1;}
.contact .right_pic{float:right; margin-left:20px; margin-top:0px;}
.contact .op{margin-top:10px;}
.contact .op img{vertical-align:middle; margin-right:12px;}
.map{text-align:center; padding:15px 0;}
.pic_info{overflow:hidden; zoom:1; line-height:210%;}
.pic_info .left_pic{float:left; border:solid 1px #bbb; padding:5px; background:#fff; margin-right:15px;}
.pic_info .more{background:#3d4548; color:#fff; font-weight:bold; padding:5px 10px;}
.pic_info dl{overflow:hidden; zoom:1; padding:0 0 15px;}
.pic_info dt{float:left;}
.pic_info dt img{margin-right:15px;}
.pic_info dd{overflow:hidden; zoom:1;}
.pic_info dd strong{display:block; font-size:14px; color:#333;}
.pic_info dd strong a{color:#333;}
.pic_info dd .xq{text-decoration:underline; color:#336699;}
.tbl_b td{border-bottom:dashed 1px #ddd; padding:8px 5px; text-align:center;}
.tbl_b .tit td{font-weight:bold; color:#fff; background:url(bg_tbl.gif) repeat 0 0; height:33px; padding:0 5px; border-bottom:0;}
.tbl_b td span{display:block; text-align:left; padding-left:20px;}
.page{text-align:center; padding:15px 0;}
.page a{margin:0 5px;}
.page img{vertical-align:middle;}
.page .on,.page a.on{font-weight:bold; color:#000;}
.detail .tab{font-weight:bold;}
.scroll{margin-bottom:20px;}
.scroll .fl{width:570px; float:left; text-align:center;}
.scroll .fr{width:122px; float:right; text-align:center;}
.scroll .big_pic{border:solid 1px #ddd; padding:3px; height:340px;}
.scroll .big_pic img{height:340px;}
.scroll .group_pic .pics{height:293px; overflow:hidden;position:relative;}
.scroll .group_pic ul{padding:7px 0;position:absolute; left:0; top:0;}
.scroll .group_pic li{padding:5px 0; cursor:pointer;}
.scroll .group_pic li img{border:solid 1px #ddd; padding:3px; width:113px; height:76px;}
.scroll .group_pic li.on img {border:solid 1px #ff0000;}
.scroll_a{width:706px; position:relative; margin-bottom:20px;}
.scroll_a li{float:left; padding:0 5px; cursor:pointer;}
.scroll_a li img{border:solid 1px #ddd; padding:3px;}
.scroll_a .pre{position:absolute; left:0; top:20px;cursor:pointer}
.scroll_a .next{position:absolute; right:0; top:20px;cursor:pointer}
.scroll_a .box{width:655px; overflow:hidden; margin:0 auto;}
.scroll_a .box .inner{width:655px; position:relative; height: 84px; overflow:hidden;}
.scroll_a .box ul{position:absolute; left:0; top:0; height:84px; overflow:hidden;}
.scroll_a .box li img{ width:113px; height:76px;}
.scroll_a .box li.on img{ border:solid 1px #ff0000;}
.scroll_info{margin-bottom:20px;}
.scroll_info dt{text-align:center;}
.scroll_info dt img{border:solid 1px #ddd; padding:3px; width:643px; height:393px;}
.scroll_info dd{padding:0 30px;}
.more_article{font-weight:bold; padding:0 30px; height:20px;}
.more_article .fl{float:left;}
.more_article .fr{float:right;}

.title_1{ background:url(title_bg.gif) repeat-x left bottom; height:27px; line-height:26px; margin-bottom:10px;}
.title_1 .more{ color:#266aaf; float:right;}
.title_1 h3{ float:left; font-size:14px; height:27px; font-weight:bold; color:#fff; background:url(title_txt.gif) no-repeat left bottom; width:95px; padding-left:21px;}
.title_1 h3 a{color:#fff;}
.pic_bd{ background-color:#f4f4f4; border:1px solid #e5e5e5; padding:2px; float:left;}
.intro_txt{ margin:10px 0px 20px;}
.intro_txt .pic_bd{ float:left; margin-right:14px; display:inline-block;}
.intro_txt p{ line-height:30px; margin:2px 0 5px;}
.blocks{ margin:0 0px 20px;}
.blocks .fl{ float:left; width:310px;}
.blocks .fr{ float:right; width:354px;}
.blocks .fr li { display:inline;}
.blocks .fr li img{ float:left; display:inline-block; margin-right:9px;background-color:#f4f4f4; border:1px solid #e5e5e5; padding:2px;}


.block_about .fl{width:510px; float:left;}
.block_about .fr{width:170px; float:right;}
.block_about .fr dl{font-weight:bold; margin-bottom:15px; text-align:center;}
.block_about .fr dt img{border:solid 1px #ddd; padding:3px;}
.block_about .fl .news_list{margin-bottom:12px;}
.news_list li{padding:0px 10px; border-bottom:dotted 1px #ddd; height:37px; line-height:37px; overflow:hidden;}
.news_list li strong{margin-right:5px;}
.news_list .right{float:right;}

.clear { clear:both;}

.sitemap {display:block;}
.sitemap dl {float:left; padding:0 11px;}
.sitemap dl dt {font-weight:bold;}

.sub_nav .lv1{height:37px; margin:7px 0 0; width: 205px;}
.sub_nav .lv1 a { display:block; width:180px; line-height:37px; padding:0 0 0 25px; background:url(sub_bg1.gif) no-repeat 0 0; text-decoration:none; color:#666; font-size:14px; font-weight:bold;}
.sub_nav .lv1 a:hover,.sub_nav li.current a {background-image:url(sub_bg2.gif); color:#fff;}
.sub_nav .product .lv1 a {background:url(sub_bg3.gif) no-repeat 7px 0; }
.sub_nav .product .lv1 a:hover,.sub_nav .product li.current a {background:url(sub_bg2.gif) no-repeat 0 0; color:#fff;}

.sub_nav .product .lv2 { width:183px; margin:0 0 0 11px;}
.sub_nav .product .lv2 p{background:url(bg2.jpg) no-repeat 0 0; height:29px; line-height:29px; margin:5px 0 0; padding:0 0 3px; font-weight:bold;}
.sub_nav .product .lv2 p a { color:#fff; text-decoration:none; display:block; width:148px; height:100%; padding:0 0 0 35px;}
.sub_nav .product .lv2 p.on { background:url(bg2_on.jpg) no-repeat 0 0;}
.sub_nav .product .lv2 ul{width:170px;}
.sub_nav .product .lv2 li a { text-decoration:none; display:block; width:100%; height:100%;}
.sub_nav .product .lv2 li{border-top:solid 1px #ddd; line-height:35px; text-align:center;}
.sub_nav .product .lv2 li.on{background:url(trag.gif) no-repeat right center; font-weight:bold;}
.sub_nav .product .lv2 li.on a{ color:#2185db; text-decoration:none; display:block; width:100%; height:100%;}
.con div.k {padding:10px 0 0;}

.daili { font-size:14px; line-height:160%; color:#666;}
.daili .list .tit { height:32px; line-height:32px; width:100%; background:url(line_top_nv.jpg) repeat-x 0 0; color:#fff; font-weight:bold; font-size:12px; text-align:center;}
.daili .list td { text-align:center;}
.daili .con td { border-bottom:1px solid dotted;}
.daili .con td { padding:10px 0;}
.daili .con td img { border:1px solid #666;}

.mess { color:#666;}
.mess span { color:#990000;}
.mess .list { font-size:14px;}
.mess .list td { padding:7px 0;}
.mess .input { height:24px; line-height:24px; border:1px solid #666; padding:0 3px;}
.mess textarea {line-height:24px; border:1px solid #666; padding:0 3px; overflow:hidden;}
.mess img { cursor:pointer;}


.new_fdc { width:990px; margin:0 auto; position:relative;}
.servicefdcall { position:absolute; width:172px; height:320px; right:0; top:0px;}
.servicefdc {background:url(index_bg8.png) no-repeat center top; width:172px; height:192px; padding:138px 0 0;}
.servicefdc p { width:129px; height:36px; margin:0 auto;text-align: center;}
.servicefdc dl { width:129px; margin:0 auto; padding-top:29px;}
.servicefdc dt { height:40px; line-height:40px; color:#666;}
.servicefdc dd { height:20px; width:110px; margin:0 auto;}

.col_index { margin-top:0; padding-top:10px;}
.mian_nav li { z-index:100;}
.mian_nav li div { z-index:100;}
/*----------------------------------go to top style---------------------------------------*/
#back-to-top{
		position:fixed;
		bottom:20px;
		right:60px;
	}
	#back-to-top a{
		text-align:center;
		text-decoration:none;
		color:#090;
		display:block;
		width:120px;
		/*使用CSS3中的transition属性给跳转链接中的文字添加渐变效果*/
		-moz-transition:color 1s; 
		-webkit-transition:color 1s;
		-o-transition:color 1s;
	}
	#back-to-top a:hover{
		color:#090;
	}
	#back-to-top a span{
		background:#090;
		border-radius:6px;
		display:block;
		height:120px;
		width:120px;
		background: url(wx.jpg) no-repeat center center;
		margin-bottom:5px;
		-moz-transition:background 1s;
		-webkit-transition:background 1s;
		-o-transition:background 1s; 
	}
	#back-to-top a:hover span{
		background:#090 url(wx.jpg) no-repeat center center;
	}
/*----------------------------------neiye style---------------------------------------*/