.top{width:100%;height:450px;background:url(../img/pc1.jpg) no-repeat center;}
.nav{width:100%;height:45px;line-height:45px;background:#C20607;}
.nav .nav_box{width:1200px;margin:0 auto;color:#fff;}
.nav .nav_box a{color:#AD9274;margin:0 26px;color:#fff;}