body { font-family:'微软雅黑'; font-size:12px; color:#4d4d4d; margin:0px; padding:0px; background:#fff; }
.topbgw{ min-width:1000px;height:345px; position:relative; overflow:hidden;}
.topbgw .flash{ overflow:hidden; min-width:1000px;height:345px; position:absolute; left:50%; margin-left:-960px;}
.topbg{ width:100%; height:32px; line-height:32px; background:#fff;position:absolute; top:0px;filter:alpha(opacity=20); -moz-opacity:0.2; -khtml-opacity: 0.2; opacity: 0.2; z-index:0; }
.topbg_txt{ position:absolute; top:0px; width:1000px; overflow:hidden; height:30px; line-height:30px;  color:#fff; z-index:999; left:50%; margin-left:-500px;}
.topbg_txt h1{ color:#fff; font-weight:normal;}
.topbg_txt a{ color:#fff; font-weight:normal; font-size:14px;}
.topbg_txt a:hover{ text-decoration:underline; color:#fff;}
.topbg_txt h1{ margin:0px; padding:0px; font-size:14px;}
.page_center{ width:1000px; margin:0 auto;}
ul,li,ol{ padding:0px; margin:0px; list-style:none;}
a{color:#4d4d4d; text-decoration:none; }
a:hover{ color:red;}
.divclear{overflow:hidden; clear:both;}
.pageauto{ width:100%; margin:0px auto;}
.fl{ float:left;}
.fr{ float:right;}
.pageCenter{ width:1000px; margin:0px auto; padding:0px 10px;}
.divCenter{width:1000px; margin:0px auto;}
.div5{ height:5px; line-height:5px; overflow:hidden; clear:both;}
.div10{ height:10px; line-height:10px; overflow:hidden; clear:both;}
.div12{ height:12px; line-height:12px; overflow:hidden; clear:both;}
.div15{ height:15px; line-height:15px; overflow:hidden; clear:both;}
.div20{ height:20px; line-height:20px; overflow:hidden; clear:both;}
.div25{ height:25px; line-height:25px; overflow:hidden; clear:both;}
.h20
{ height:20px;
}
.h15
{ height:15px;
}
.clear{ clear:both; }
.divContents { width:98%; padding:10px 0; margin:0 auto; overflow:hidden; min-height:400px;}
.contentLeft { /*height:350px; width:1px; float:left;*/}
.contentRight { /*width:714px; overflow:hidden; float:left; font-size:14px; color:#000000;*/}
#tdcontents{line-height:160%; font-size:14px!important; color:#333;}
#tdcontents span ,#tdcontents p {font-size:14px!important; font-family:'宋体'!important;line-height:1.5!important;}
.tblContents { width:704px; table-layout:fixed; overflow:hidden; line-height:200%;}
.linka { cursor:pointer; display:block; overflow: hidden; white-space:nowrap; text-overflow:ellipsis; -o-text-overflow:ellipsis;}
.linkleft { cursor:pointer; display:block; overflow: hidden; white-space:nowrap; text-overflow:ellipsis; -o-text-overflow:ellipsis; float:left;}
.rq { float:right;}
.NextUp { width:100%; color:#999999; font-size:14px;  padding-top:20px; background:url("imagestoolLinebg.png") no-repeat center top; margin-top:20px;}
.NextUp p{ padding:5px 0px; margin:0px;}
.NextUp a { color:#666; font-size:14px; line-height:22px;}
.NextUp a:hover { color: #ff0000;}
.h1title { font-size:16px;color:#e3393a; text-align:center; line-height:26px; padding-bottom:8px;}
.h2title { font-size:13px;color:#666666; text-align:center; line-height:20px;}
.nrinfo{ font-size:12px; color:#333;}
.nrinfo a{ font-size:12px; color:#333;}
.nrinfo a:hover{ font-size:12px; color:#ff0000;}
.nrinfo td{ padding:10px 0px; }
.toolLine{ background:url("imagestoolLinebg.png") no-repeat center bottom; height:50px; vertical-align:top;}
/*分页 开始*/
.paginator { font:13px Arial, Helvetica, sans-serif; color:#333333; margin: 0px; text-align:center; padding:10px 0 20px 0;}
.paginator a { font-size: 13px; height: 20px; line-height: 20px; margin-right: 5px; text-align: center; padding:5px 8px;border-radius:3px;}
.paginator .cpb { height: 20px; line-height: 20px; margin-right: 5px; text-align: center; width: 20px; padding:5px 8px; color: #ffffff; background-color:#b61010;border-radius:3px;}
.paginator a:hover { color: #b61010; text-decoration: underline;}
/*分页 结束*/
.minWidth{ min-width:1000px;}

/*头部样式 开始*/
.top_info{display:block; padding:0px; background-color:#fff; height:25px; line-height:25px; color:#ffffff; font-family:'微软雅黑'; width:100%; min-width:1000px;}
.top_info a{color:#ffffff;}
.top_info a:hover{ color:#ffa926;}
.top_info .usercenter{ position:relative;}
.top_info .usercenter li{ float:right;}
.top_info .usercenter li a{ display:block; height:29px; line-height:29px;}
.top_info .usercenter .ewm{ height:29px; width:109px; background:url("imagestop_ewmbg.png") no-repeat center center; text-align:left;}
.top_info .usercenter .kf{ height:29px; width:119px; background:url("imagestop_kfbg.png") no-repeat center center; margin-left:20px; text-align:left;}
.top_info .usercenter .nwbg{ height:29px; width:119px; background:url("imagestop_nwbgbg.png") no-repeat center center; text-align:left; margin-left:20px;}
.top_info .usercenter a{ color:#fff; display:block;}
.top_info .usercenter .ewm a{ padding-left:45px;}
.top_info .usercenter .kf a{ padding-left:63px;}
.top_info .usercenter .nwbg a{ padding-left:60px;}

.top_info .usercenter a:hover{color:yellow;}
.page_top_logo_w{}
.page_top_logo{display:block; height:99px; padding:10px 0px;}
.logo_span{ width:600px;}
.logo_span img{ height:76px;}

.indexewm{ position:absolute; top:26px; z-index:9999;}
.indexewm img{ width:110px; height:110px;}

.indexkf{ position:absolute; top:26px; z-index:9999; color:#000;  width:103px; border:1px solid #ccc; background:url("imagesqqbg.png") repeat-x #fff; padding:8px; border-radius:2px;box-shadow: 2px 2px 5px #ccc;}
.indexkf .qqlist{ text-align:center; padding:0px; margin:0px; float:none; border-bottom:1px dotted #ccc; color:#007BC4;}
.indexkf .qqlist a{ margin:0px; padding:0px; display:block; width:103px; text-align:center;}
.indexkf .qqlist .id a{ padding:0px;}
/*头部样式 结束*/


/*头部查询 模块开始*/
.page_top_search .searchdiv{ padding-right:0px;}
.searchdiv .searchinp{ width:140px; height:23px; line-height:23px; color:#999; border:0px; background:#fff; font-size:14px; font-family:"微软雅黑"; padding:0px 5px; border:1px solid #AD2323;}
.searchdiv .searchbtn{ background:url("imagessearchbtnbg.png") no-repeat center center #A62A22; color:#fff; font-size:14px; border:0px; height:25px; width:32px; cursor:pointer; margin-left:2px;}
/*头部查询模块 结束*/


/**导航 开始*/
.navbg{background:#A32620; min-width:1000px;}
.page_nav{ height:45px; z-index:99; position:relative;}
.nav{width:1000px; height:45px; padding:0px;}
.nav .nav_main{ width:1000px; margin:0px auto; height:45px; font-size:16px; font-family:'微软雅黑'; text-align:center;}
.nav .nav_main li{ float:left; padding:0px; width:87px; height:45px; text-align:center; position:relative;}
.nav .nav_main .nav_center{ width:4px;  overflow:hidden; z-index:1; height:45px; background:url("imagesnav_center.png") no-repeat center center;}
.nav .nav_main li a{ margin:0px auto; height:45px; line-height:45px;text-align:center; color:#ffffff; display:block; display:block; overflow: hidden; white-space:nowrap; text-overflow:ellipsis; -o-text-overflow:ellipsis;}
.nav .nav_main li a:hover{background:url(imagesdh_on.png) no-repeat -1px center; color:yellow;}
.nav .nav_main .onit{ background:url(images112.png) }
.nav .nav_main .nav_sub { width:87px;  display:none; position: absolute; overflow:hidden; z-index:1; top: 45px; z-index:100;}

.nav .nav_main .nav_sub ul{ margin:0px; padding:0px; float:left; list-style:none; background:#A32620; padding-bottom:3px;}
.nav .nav_main .nav_sub li{padding:0px; height:30px;}
.nav .nav_main .nav_sub li a{font-size:14px; font-weight:normal; color:#fff; line-height:30px; height:30px;text-align:center; border-bottom:0px;display:block; overflow: hidden; white-space:nowrap; text-overflow:ellipsis; -o-text-overflow:ellipsis;}
.nav .nav_main .nav_sub li a:hover{ background:#FF9C00;}

.ernav{background:#EEEEEE; height:29px; line-height:29px; margin-top:10px;}
/**导航 结束*/

.tzgg_main { width:500px;height:22px; float:left; overflow:hidden;}
.tzgg_main ul{ float:left; margin:0px; padding:0px; list-style:none;}
.tzgg_main li {float:left;width:300px;height:22px;text-align:center;padding:0px; padding-right:30px; font-size:13px;line-height:22px;}
.tzgg_main li a{ float:left; color:#333333; width:300px;cursor:pointer; display:block; overflow: hidden; white-space:nowrap; text-overflow:ellipsis; -o-text-overflow:ellipsis; }
.tzgg_main li a:hover{color:#ff0000;}
.tzgg_main li span{ float:right; color:#666666; }

/**底部样式**/
/*底部导航 开始*/
.bottomnav td
{
    padding:5px 5px;
    vertical-align:top;
    text-align:center;
}
.bottomnav h1
{
    margin-top:5px;
    font-weight:normal;
    font-size:14px;
}
.bottomnav h1 a
{
    color:#fff;
    font-size:14px;
}
.bottomnav p a
{
    font-size:12px;
    display:block;
    margin-top:5px;
}
.bottomnav a:hover,.bottomnav p a:hover
{
    color:yellow;
    text-decoration:underline;
}
.bottomnav .i_nbxt_w 
{
    margin-top:15px;
    width:320px;
    float:right;
}
.bottomnav .i_nbxt_w .title
{
    background:url("imagesnbxtbg.png") no-repeat center center;
    height:30px;
    line-height:30px;
    color:#fff;
    text-align:center;
}
.bottomnav .i_nbxt_w ul
{
    margin-top:30px;
}
.bottomnav .i_nbxt_w li
{
    width:100px;
    margin:0px 2px;
    float:left;
}
.bottomnav .i_nbxt_w li .imgw{ width:100px; height:100px; overflow:hidden;}
.bottomnav .i_nbxt_w li .txt a{ display:block; height:30px; line-height:30px; color:#fff;}
.bottomnav .i_nbxt_w li .txt a:hover{ color:Yellow;}
/*底部导航 结束*/

/*底部版权信息 开始*/
/*.footer { display:block; color:#fff; font-family:'微软雅黑'; background:#007BC4; min-width:1000px; font-size:14px;}
.footer_sub{ width:1000px; margin:0px auto; }
.footer_sub p{ margin:8px 0px; padding:0px;}
.footer_sub p a{ color:#fff;}
.footer_sub .cylinksw{line-height:25px; width:1000px; background:url(imagescylj_b_bg.png) repeat-x center bottom; padding:15px 0px;}
.footer_sub .cylinks{ background:url(imagescylj_ico.png) no-repeat 10px center; padding-left:50px; width:75px;}
.footer_sub .cylinksw .list a{ color:#fff;}
.footer_sub .cylinksw .list a:hover{color:yellow; text-decoration:underline;}

.copyright{ background:#A32620; color:#fff; font-size:14px; min-width:1000px;}
.copyright a{ color:#fff; font-size:14px;}
.copyright a:hover{ color:yellow;}
.copyright p{ margin:8px 0px; padding:0px; text-align:center;}
.copyright{ padding:8px 0px; }
.copyright .wjba{ width:930px; margin:0 auto;}*/
/*底部版权信息 结束*/

/**内页样式**/

.banner{ height:170px; }
.page_center{ margin:0px auto; width:1000px; padding:10px 0px; }
.page_main{margin:0px auto; padding:15px 0px; width:1200px; padding-top:20px;}
.position{ height:40px; line-height:40px; width:100%; font-size:14px; overflow:hidden; margin:0 auto;}
	.position .ico
	{
		height:40px;
		width:40px;
		background:url("images2017_bhj_position.png") no-repeat center center;
	}
	.position .icodate
	{
		height:40px;
		width:40px;
		background:url("imagesdateico.png") no-repeat 4px center;
		border-left:1px solid #D2D2D2; 
		border-right:1px solid #D2D2D2; 
	}
.position .txt,.position .txt a { font-size:16px;}
.position span{ color:#000;}
.position a:hover{ color:#FF9C00;}

/**左导航**/
/*.pageleft{ width:257px; padding:0px; overflow:hidden; float:right;}
.left_nav{width:257px; float:right; overflow:hidden;  min-height:250px; }
.left_bottom{width:257px; height:0px; overflow:hidden; }
.left_nav .mlm_title{ height:50px; color:#525252; line-height:50px;  text-align:left; text-indent:6.5em; border-bottom:1px solid #D2D2D2;}
.left_nav .mlm_title .en{ display:none; line-height:24px; height:24px; font-size:20px; font-weight:bold; color:#eee;filter:alpha(opacity=20);-moz-opacity:0.2;-khtml-opacity: 0.2;opacity: 0.2; text-align:right; padding-right:10px; display:none; }
.left_nav .mlm_title .cn{ display:block; line-height:50px; height:50px; font-size:20px;color: #e3393a; font-family:"微软雅黑";}

.nav_item{ margin:0px; padding:5px 0px 15px 0px;min-height:150px; width:257px; list-style:none; border:1px solid #D2D2D2; border-top:0px; background:#fff;}
.nav_item li{ display:block; color: #333333; font-size: 16px;clear:both;background-color:#f4f4f4;width:100%;margin:5px 0 5px 0;}
.nav_item li a{display:block; padding:0px;line-height:45px; text-align:center; font-size:16px; color:#333; text-decoration:none; overflow:hidden;white-space:nowrap; text-overflow:ellipsis; width:100%; margin:0 auto;}
.nav_item li.ponit a{color:#FFF;background-color:#2c77ef;}
.nav_item li a:hover{color:#FFF;background-color:#2c77ef;}
.nav_item li.onit{color:#FFF; background:#2c77ef;}
.nav_item li.onit a{color:#FFF; background:#2c77ef;}*/
/*.nav_item li.mnav a{ background: url("imagesleft_nav_o.png") no-repeat scroll 50px 14px transparent; }*/
.pageleft { width:292px;overflow:hidden;float:left;}
.left_nav { width:290px;min-height:100px;}
.left_nav .left_nav_content { width:100%;min-height:100px;margin:0 auto;}
.left_nav .left_nav_content .mlm_title { width:100%;height:100px;background:#2f9cb0;text-align:center;}
.left_nav .left_nav_content .mlm_title .cn { display:block;font-size:24px;color:#FFF;text-align:center;padding-top:20px;}
.left_nav .left_nav_content .mlm_title .en { display:block;color:#FFF;text-align:center;font-size:18px;padding-top:5px;}

.nav_item{ margin:0 auto; width:100%; list-style:none; border-top:0px; background:#fff;border:1px solid #ddd;border-bottom:none;}
.nav_item li{ display:block; color: #333333; font-size: 16px;clear:both;width:100%;border-bottom:1px solid #ddd;}
.nav_item>li>a{display:block; padding:0px;line-height:40px; text-indent:2em; font-size:18px; text-decoration:none; overflow:hidden;white-space:nowrap; text-overflow:ellipsis;width:90%; background:url("images2017_hbj_left_icon.png") no-repeat 10px center;float:left;}
.nav_item li .tmp_icon { display:block;background:url("images2017_hbj_left_r_icon.png") no-repeat right center;width:11px;height:11px;float:right;margin:15px 10px 0 0;}
.nav_item li a:hover{color:#3192d6;}
.nav_item li.onit a{color:#3192d6;}
.nav_item li.ponit a{color:#3192d6;}
.nav_item li.ponit .tmp_icon { display:block;background:url("images2017_hbj_left_d_icon.png") no-repeat right center transparent;width:11px;height:11px;float:right;margin:15px 10px 0 0;}

.nav_item .sub_item{ margin:0px; padding:0px; display:block; list-style:none; background-color: #f3f4f4; display:none;}
.nav_item .sub_item>li{ border-bottom:0px; background:none;}
.nav_item .sub_onit{display:block;}
.nav_item .sub_onit li.onit{ }
.nav_item .sub_item li a{color:#333333; padding:5px 0px; font-size:14px; display:block; height:28px;line-height:28px;text-indent:2em;width:90%;float:right;border-top:1px dashed #ddd;}
.nav_item .sub_item li.onit a{color:#3192d6; font-size: 15px;background: url("imagesjtop1.png") no-repeat scroll 70px center transparent;}
.nav_item .sub_item li a:hover{color:#3192d6; font-size: 15px;background: url("imagesjtop1.png") no-repeat scroll 70px center transparent;}


/*左侧园区动态*/
.left_nav_bottom { width:290px;overflow:hidden;float:right;border:1px solid #D2D2D2;min-height:175px;}
.left_nav_bottom .left_yqdt { display:block;width:90%;height:50px;margin:0 auto;}
.left_nav_bottom .left_yqdt .yqdt_title { display:block;width:100%;height:50px;border-bottom:1px solid #D2D2D2;}
.left_nav_bottom .left_yqdt span { display:block;width:120px;height:50px;font-size:18px;color:#e3393a;line-height:50px;text-align:center;border-bottom:3px solid #e3393a;margin:0 auto;}

.left_nav_bottom .left_yqdt .yqdt_list li{ display:block;width:100%;height:40px;background:url('imageshr_red_point.png') no-repeat 0 19px;}
.left_nav_bottom .left_yqdt .yqdt_list li a { display: block; width: 100%; height: 40px; line-height: 40px; text-indent: 1em; font-size: 16px; white-space: nowrap; text-overflow: ellipsis; overflow: hidden; }
.left_nav_bottom .left_yqdt .yqdt_list p { font-size:16px;}


    .left_nav .left-ztzs .l-ztzs-icon-list > ul > li:hover>a>span{
        color:#2c77ef;
    }

.l-ztzs-list-icon-bg1 {
    background:url('imagesyjj_neiye_shipin.png') no-repeat;
}
.l-ztzs-list-icon-bg2 {
    background:url('imagesyjj_neiye_baojianshipin.png') no-repeat;
}
.l-ztzs-list-icon-bg3 {
    background:url('imagesyjj_neiye_yaopin.png') no-repeat;
}
.l-ztzs-list-icon-bg4 {
    background:url('imagesyjj_neiye_huazhuangpin.png') no-repeat;
}
.l-ztzs-list-icon-bg5 {
    background:url('imagesyjj_neiye_yiliaoqixie.png') no-repeat;
}
.l-ztzs-list-icon-bg6 {
    background:url('imagesyjj_neiye_more.png') no-repeat;
}




/*.left_nav .nylxwm{ border:1px solid #d2d2d2; width:228px; background:#fff;}
.left_nav .nylxwm .title{ font-size:16px; height:40px; line-height:40px; text-align:left;border-bottom:1px solid #d2d2d2; margin:0px 5px; color:#000; background:url("imagesllxwm.png") no-repeat 5px center; padding-left:30px;}
.left_nav .nylxwm .title .more a{ font-size:14px; color:#666;}
.left_nav .nylxwm .title .more a:hover{ font-size:14px; color:#ff0000;}
.left_nav .nylxwm .txt{ padding:10px 0px; font-size:12px; color:#000;}
.left_nav .nylxwm .txt td{ padding:5px 0px; text-align:left;}
.left_nav .nylxwm .txt .phone{ width:25px; background:url("imageslxwmphone.png") no-repeat center 3px;}
.left_nav .nylxwm .txt .taxi{ width:25px; background:url("imagesltaxi.png") no-repeat center 9px;}
.left_nav .nylxwm .txt .address{ width:25px; background:url("imageslxwmaddress.png") no-repeat center 6px;}
.left_nav .nylxwm .txt .conts a{color:#000;}
.left_nav .nylxwm .txt .conts a:hover{color:#ff0000;}
	.left_nav .nylxwm .lmap
	{
		width: 210px;
		height: 115px;
		overflow: hidden;
		border:1px solid #dadada;
		margin:0 auto;
		margin-bottom:10px;
	}*/

/*科室相关新闻 开始*/
.left_nav .Relation_news{ border:1px solid #d2d2d2; width:228px; background:#fff;}
.left_nav .Relation_news .title{ font-size:16px; height:40px; line-height:40px; text-align:left;border-bottom:1px solid #d2d2d2; margin:0px 5px; color:#000; background:url("imagesRelation.png") no-repeat 5px center; padding-left:30px;}
.left_nav .Relation_news .title .more a{ font-size:14px; color:#666;}
.left_nav .Relation_news .title .more a:hover{ font-size:14px; color:#ff0000;}
.left_nav .Relation_news .txt{ padding:10px; min-height:100px;}
.left_nav .Relation_news .txt a{ display:block; width:200px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; font-size:14px; height:28px; line-height:28px; border-bottom:1px dotted #dadada; background:url("imagesi_zxgg_1.png") no-repeat left center; padding-left:15px;}

/*科室相关新闻 结束*/

.btnlink{ display:block; margin:5px 0px;}
.btnlink img{ width:240px; height:66px; border:0px;}

.zx_gk{ margin:0px; padding:0px; width:100%; list-style:none;}
.zx_gk li{ border-bottom:dotted 1px #ccc; line-height:30px;}

.zx_gk_more{ display:block; width:160px; margin:5px auto; line-height:26px; text-align:center; background-color:#f3ab3f; color:#fff; border-radius:8px; -webkit-border-radius:8px; -moz-border-radius:8px;}
.left_news{ width:228px; padding:5px; border:solid 1px #20c0c0; border-top:solid 5px #20bbbc;}
.left_news .news_list{ margin:0px; padding:0px; width:100%; list-style:none;}
.left_news .news_list li{ border-bottom:dotted 1px #ccc; line-height:20px; padding:5px 0px;}
.left_news .news_list li span{ color:#999; line-height:16px;}
.left_news .l_n_more{ color:#f3ab3f; float:right;}

.right{ width:890px; background:#fff;}
.lm_title{display:block;width:100%;margin:0 auto;border-bottom:1px solid #D2D2D2;}
.lm_title span{ font-size:18px; line-height:50px; color:#b61010;border-bottom:3px solid #b61010;text-align:center;padding:12px 10px;}

.jcpt_list{width:712px; margin:0px auto; padding:0px; list-style:none; padding:0px;}
.jcpt_list li{ width:160px; padding:3px; height:30px; float:left; margin:10px 5px; border:solid 1px #024b9d; border-radius:4px; background:url("imagesjcpt_bg.jpg") repeat-x scroll 0px bottom transparent; }
.jcpt_list li a{ display:block; width:160px; height:30px; line-height:30px; color:#333; overflow: hidden; white-space:nowrap; text-overflow:ellipsis; -o-text-overflow:ellipsis;border-radius:5px; text-align:center; }
.jcpt_list li a:hover{ color:#ffa200;}
.jcpt_list li a.onit{ color:#ffa200;}

/*网上预约 开始*/
.l_wsyy{ border:1px solid #d2d2d2; width:228px; height:53px; overflow:hidden;}
.l_wsyy a{ display:block; background:url("imageslwsyy.png") no-repeat center center;  width:228px; height:53px;}
/*网上预约 结束*/




/*回到顶部 开始*/
/*returnTop*/ 
p#back-to-top{ 
position:fixed; 
left:50%;
margin-left:550px;
display:none; 
bottom:100px; 
} 
p#back-to-top a{ 
text-align:center; 
text-decoration:none; 
color:#d1d1d1; 
display:block; 
width:38px; 
/*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; 
} 
p#back-to-top a:hover{ 
color:#979797; 
} 
p#back-to-top a span{ 
background:transparent url(imagesgotop.png) no-repeat 1px 0px; 
border-radius:6px; 
display:block; 
height:38px; 
width:38px; 
margin-bottom:5px; 
/*使用CSS3中的transition属性给<span>标签背景颜色添加渐变效果*/ 
-moz-transition:background 1s; 
-webkit-transition:background 1s; 
-o-transition:background 1s; 
} 
#back-to-top a:hover span{ 
background:transparent url(imagesgotop.png) no-repeat -37px 0px; 
} 

/*回到顶部 结束*/