.Header{z-index:10;font-family:"microsoft yahei",serif;background:#fff}.Header .head_nav{background:linear-gradient(180deg,#F1F1F1,#eee);border-bottom:1px solid #ddd}.Header .head_nav .head_box{width:1000px;margin:0 auto;border-left:1px solid #ddd;height:2em}.Header .head_nav .head_box a{line-height:2;float:left;text-align:center;min-width:10em;border-right:1px solid #ddd}.Header .head_nav .head_box a.now,.Header .head_nav .head_box a:hover{background:linear-gradient(180deg,#f8f8f8,#fff,#fff);text-decoration:none;color:#333;border-bottom:1px solid #fff}.Header .cont_box{line-height:46px;height:46px;padding:20px 0;margin:auto;position:relative;width:1000px}.Header .logo{float:left;margin-right:50px;display:inline;background:url(../../www/pic/logo/logo_index.png) no-repeat;width:160px;height:46px}.Header .logo.syt{background-image:url(../../pic/4yt_logo.png)}.Header .so{float:left;padding:7px}.Header .so input{font-size:12px;float:left;padding:0 10px;border:1px solid #f1f1f1;line-height:2.5;height:2.5em;color:#999}.Header .so .q,.Header .so .text{width:175px;border-radius:6px 0 0 6px;outline:0}.Header .so .btn,.Header .so .m{background:#f60;color:#fff;width:65px;border-color:#f60;border-radius:0 2px 2px 0;height:2.7em;outline:0}.Header .so .btn:hover,.Header .so .m:hover{background:#ee5525}.Header .nav{float:right}.Header .nav dd{line-height:45px;height:45px;float:left;margin:0 5px;display:inline;color:#999}.Header .nav dd .icon{display:inline-block;background:url(17k_header/icon_nav.png) no-repeat;width:20px;height:20px;vertical-align:middle}.Header .nav dd a{display:inline-block;color:#333;font-size:12px}.Header .nav dd a:hover{color:#f60}.Header .nav .login{position:relative;min-width:100px}.Header .nav .login .tit{text-align:center}.Header .nav .login .tit img{width:25px;height:25px;border-radius:50%;vertical-align:middle;margin-right:5px}.Header .nav .login .tit a{max-width:100px;vertical-align:middle;text-overflow:ellipsis;overflow:hidden;white-space:nowrap}.Header .nav .login .exit{display:none;position:absolute;z-index:2;top:0;left:0;padding-top:45px;right:0;line-height:1;background:#fff;padding-bottom:.5em;border-radius:0 0 6px 6px;box-shadow:0 5px 6px rgba(0,0,0,.1)}.Header .nav .login .exit a{text-align:center;display:block;position:relative;z-index:1;line-height:2}.Header .nav .login:hover{background:#fff}.Header .nav .login:hover .exit{display:block}.Header .nav .histroy span.icon{background-position:0 -52px}.Header .nav .booklib span.icon{background-position:0 -105px}.Header .nav .message a.new{background:url(17k_header/icon_new.png) no-repeat right center;padding-right:22px}.Header .nav .message span.icon{background-position:0 -158px}.Header .nav .write span.icon{background-position:0 -211px}.Header .nav .recharge span.icon{background-position:0 -264px}.Header .nav .tit{position:relative;z-index:3;padding:0 5px;border-bottom:none;display:block;white-space:nowrap}