.case_cont3 {overflow: hidden; margin:0 auto;width:1200px;}
.sv_mu3 {width:1200px; height:66px; margin:10px auto 10px auto;}

.sv_mu3 li {float:left; height:66px;line-height:66px;color:#fff;font-family:"Microsoft Yahei"; font-size:20px; width:200px; text-align:center;}
.sv_mu3 li a {display: block; color:#000;height:66px;line-height:66px;  width:200px; display:block;background: url(../images/22.png) top repeat-x;}
.sv_mu3 li a:hover, .sv_mu .cur a {text-decoration: none;color: #fff;  background: url(../images/11.png) top center no-repeat;}

.sv_info3 {width:1200px;height:800px; margin:0 auto;}



/* -- ҳ�����岼�� -- */
.header , .content3 , .content4, .footer { width:100%; margin:0 auto;}




.case_cont2 {overflow: hidden; margin:20px auto;width:1200px;}
.sv_mu2 {width:500px; height:50px; margin:10px auto 10px auto;}

.sv_mu2 li {float:left; height:50px;line-height:50px;color:#fff;font-family:"Microsoft Yahei"; font-size:18px; width:150px; text-align:center; margin:0 5px;}
.sv_mu2 li a {display: block; color:#000;height:50px;line-height:50px;  width:150px; display:block; background:#ddd;}
.sv_mu2 li a:hover, .sv_mu2 .cur2 a {text-decoration: none;color: #fff; background:#3ea804;}

.sv_info2 {width:1200px;height:600px; margin:0 auto;}



/* -- ҳ�����岼�� -- */
.header , .content2 , .content2, .footer { width:100%; margin:0 auto;}