.case_cont3 {overflow: hidden; margin:0 auto;width:690px;}
.sv_mu3 {width:200px; height:45px; border-top:solid 5px #8a8a8a; border-bottom:solid 1px #dbdbdb; float:left;}

.sv_mu3 li {float:left; height:45px;line-height:45px; color:#000;font-family:"Microsoft Yahei"; font-weight: normal; font-size:18px; width:100px; text-align:center;}
.sv_mu3 li a {display: block; color:#000;}
.sv_mu3 li a:hover, .sv_mu .cur a {text-decoration: none;color: #007fdc; border-bottom:solid 2px #007fdc;}

.sv_info3 {width:690px;height:340px;}





/* -- 页面整体布局 -- */
.header , .content3 , .footer { width:690px; margin:0 auto;}






.case_cont2 {overflow: hidden; margin:0 auto;width:900px;}
.sv_mu2 {width:900px; height:45px; background:url(wh_1.jpg) center center repeat-x; padding-top:33px;}

.sv_mu2 li {float:left; height:45px;line-height:45px; color:#000;font-family:"Microsoft Yahei"; font-weight: normal; font-size:24px; width:150px; text-align:center; background:url(wh_3.png) top center no-repeat;}
.sv_mu2 li a {display: block; color:#000; padding-top:30px;}
.sv_mu2 li a:hover, .sv_mu2 .cur2 a {text-decoration: none;color: #007fdc; background:url(wh_2.png) top center no-repeat;}

.sv_info2{width:840px;height:340px; text-align:center; font-size:16px; line-height:30px; color:#333;font-family:"Microsoft Yahei"; margin:50px 30px 0px 30px;}