.head-nav{margin:0 auto;width:970px;height:40px;background:#F5F5F5;position:relative}.head-nav>li{float:left}.head-nav>li>span{height:40px;display:block}.head-nav>li>span>a,.head-nav>li>span.oper{height:40px;line-height:40px;padding:0 14px;display:block;color:#333;text-decoration:none;font-size:14px;font-weight:500}.head-nav>li>span.oper{font-size:16px;text-shadow:0 1px 0 #b7b7b7;letter-spacing:1px}.main{width:970px;margin:10px auto auto;overflow:hidden}.pannel{border:1px solid #ededed;border-top:0;overflow:hidden;margin-bottom:20px}div.operApiContent{margin-top:8px;border-top:1px solid #ededed}div.operApiContent div{float:left;height:100%}div.questions{width:234px}div.answers{width:733px;border-left:1px solid #ededed}div.questions ul li{display:block;width:100%;line-height:38px;height:38px;background-color:#fcfcfc;border-bottom:1px solid #ededed;clear:both;cursor:pointer}div.questions ul li span{text-align:left;line-height:38px;background:0 0}div.questions ul li span.sp1{float:left;padding-left:21px}div.questions ul li span.sp2{float:right;padding-right:20px}div.questions ul li:hover,div.questions ul li.active{background-color:#ff9138}div.questions ul li:hover span,div.questions ul li.active span{color:#fff}div.answersCon{margin:0 40px 100px;padding-top:5px}div.answersCon h3{color:#ff9138;text-shadow:1px 0 0 #ffc495;line-height:37px}div.answersCon h4{color:#666;font-size:13px;text-shadow:0 1px 0 #b8b8b8;line-height:28px;padding-left:6px}div.answersCon h4.titleH4{padding-left:0}div.answersCon p,div.answersCon p span{color:#999;font-size:12px;line-height:20px}div.answersCon p,div.answersCon img{margin-left:29px}div.answersCon img{margin-top:20px}div.answersCon p span{padding-left:20px}div.answersCon p a{font-size:12px}