body{-webkit-text-size-adjust:none}body,body dl,body dt,body dd{margin:0}a{-webkit-tap-highlight-color:rgba(0,0,0,0)}a{text-decoration:none;color:#4A4A4A}a:hover{color:black;text-decoration:none}.book-nav{background:rgba(254,255,254,0.9)}.book-nav .cont{width:1200px;height:40px;margin:auto;display:flex;align-items:center;font-size:12px}.book-nav .cont .left{flex:2;display:flex;align-items:center}.book-nav .cont .left a{margin-right:2em;display:flex;align-items:center}.book-nav .cont .left .logo img{height:24px}.book-nav .cont .left .nav_pub{font-size:18px;letter-spacing:0.34px;font-weight:600;height:40px}.book-nav .cont .left .nav_pub:hover{color:#5F97EE}.book-nav .cont .left .introduce{color:#5F97EE}.book-nav .cont .right{flex:2;display:flex;align-items:center;justify-content:flex-end}.book-nav .cont .right a{margin-left:3em}.book-nav .cont .right a.new:after{content:' ';background:red;border-radius:50%;display:inline-block;overflow:hidden;height:6px;width:6px;vertical-align:super;margin-left:5px}.book-nav .cont .right .user{display:flex;align-items:center;position:relative;padding:0 10px}.book-nav .cont .right .user img{width:2em;height:2em;border-radius:1em;margin-right:5px}.book-nav .cont .right .user .name{overflow:hidden;text-overflow:ellipsis;max-width:5em;white-space:nowrap}.book-nav .cont .right .user .logout{display:none;position:absolute;left:0;right:0;top:24px;line-height:2em;text-align:center;background:#FEFFFE;border-radius:0 0 6px 6px}.book-nav .cont .right .user:hover{background:#FEFFFE}.book-nav .cont .right .user:hover .logout{display:block}.book-nav .cont .search{flex:1;border:1px solid #7EB993;border-radius:9px;height:20px;display:flex;background:white;box-shadow:1px 1px 3px #ddd inset;overflow:hidden}.book-nav .cont .search input{padding:0;border:0;margin:0;outline:none;line-height:20px;font-size:12px;color:gray}.book-nav .cont .search .ipt{flex:1;padding:0 .5em;background:none}.book-nav .cont .search .sub{flex:0 0 30px;cursor:pointer;background:url(pic/icon/icon_search.png) center center no-repeat;background-size:auto 60%}