.header{background-image:url(../images/header_bg.jpg);background-repeat:no-repeat;background-position:bottom center;background-size:cover;height:173px}.header .header-wrap{width:100%;position:relative;margin:0 auto;height:100%;text-align:center}.header .header-wrap .logo{}.header .header-wrap .right{position:absolute;bottom:0;right:0}.nav{background:#b40005}.nav .nav-wrap{height:42px;width:1000px;margin:0 auto}.nav .nav-wrap .nav-bt{color:#fff;line-height:42px;height:42px;display:inline-block;padding:0 12px;text-align:center;font-size:18px}.nav .nav-wrap .nav-bt.nav-bt-active{background-color: #F18715;background-size:100% 100%;color:#fff}.nav .nav-wrap .search-wrap{background-image:url(../images/search_bg.png);width:180px;height:28px;margin-top:7px}.nav .nav-wrap .search-wrap input{background:transparent;border:0;margin-left:10px;width:135px;height:27px}.nav .nav-sec{background:#fdd9d9;height:30px;line-height:27px;border-top:3px solid #e7b7b7}.nav .nav-sec .nav-sec-wrap{width:1000px;margin:0 auto;font-size:14px}.nav .nav-sec .nav-sec-wrap .nav-bt-detail{display:none}.nav .nav-sec .nav-sec-wrap .nav-bt-detail.nav-bt-detail-active{display:block}.nav .nav-sec .nav-sec-wrap .nav-bt-detail .detail-bt{float:left;padding:0 10px}