html,body,p,h1,h2,h3,h4,h5,h6,form,input,textarea,select,button,fieldset,legend,img,ul,ol,li,dl,dt,dd,th,td,pre,blockquote{margin:0;padding:0}
html{height:100%;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;-webkit-font-smoothing:antialiased}
body{background: #FFF;color:#000;}
body,button,input,select,textarea,h2,h3,h4,h5,h6{font:14px 'Hiragino Sans GB', 'Microsoft Yahei', '微软雅黑', '宋体', \5b8b\4f53, Tahoma, Arial}
img,fieldset{border:0;vertical-align:middle}
input{padding:0;margin:0;outline:none;}
a{text-decoration:none;color:#4c4c4c;}
a:hover{text-decoration:none;}
ul,li,ol{list-style:none}
img{max-width:100%;}
.clear{clear:both;height:0;line-height:0;font-size:0;visibility:hidden;overflow:hidden}
.clearfix:after{visibility: hidden;display: block;font-size: 0;content: " ";clear: both;height: 0;zoom:1;}
.l{float:left;}.r{float:right;}
/*reset样式重置*/

.menwrap{position:fixed;right:0;bottom:0;width:100%;height:50px;z-index:4;}
/*.btn-open-close{margin-top:5px;margin-right:5px;float:right;width:40px;height:40px;line-height:50px;border-radius:20px;-webkit-border-radius:20px;background:#000 url(ex11.png) no-repeat center center;background-size:20px 20px;opacity:0.5;box-sizing:border-box;-webkit-box-sizing:border-box;}*/
.expan3{width:50px;height:50px;margin-top:0;margin-right:0;border-radius:0;-webkit-border-radius:0;opacity:1;border-top:1px solid #b3b3b3;border-left:1px solid #b3b3b3;background:#e6e6e6;box-sizing:border-box;-webkit-box-sizing:border-box;}
/*.expan4{width:40px;height:40px;margin-left:4px;margin-top:4px;background:#000 url(ex11.png) no-repeat center center;background-size:20px 20px;border-radius:20px;-webkit-border-radius:20px;opacity:0.5;display:none;}*/
.btn4{position:relative;z-index:3;bottom:0;border-top:1px solid #b3b3b3;background:#e6e6e6;text-align:center;box-sizing:border-box;-webkit-box-sizing:border-box;display:block;}
.menu{position:relative;float:left;width:25%;height:50px;line-height:40px;background:#e6e6e6;border-right:1px solid #b3b3b3;box-sizing:border-box;-webkit-box-sizing:border-box;}
.menu:last-child{border-right:none;}
.new-sub{position:absolute;bottom:50px;z-index:-1;width:100%;box-sizing:border-box;-webkit-box-sizing:border-box;display:none;}
.new-sub li{background:#e6e6e6;float:none;box-sizing:border-box;-webkit-box-sizing:border-box;border-bottom:1px solid #b3b3b3;border-top:1px solid #f2f2f2;}
.new-sub li a{display:block;height:50px;line-height:50px;text-align:left;background:#e6e6e6;color:#333;border:none;text-align:center;font-size:16px;}
.btn-fullbg{width:100%;height:100%;background:rgba(0,0,0,.2);position:fixed;top:0;left:0;z-index:2;display:none;}
.sanjiao{position:absolute;bottom:5px;right:5px;width:0;height:0;border:5px solid transparent;border-right:5px solid #000;border-bottom:5px solid #000;opacity:.5;}
.bt-name{font-size:16px;color:#000;}
.bt-name a{display:block;font-size:16px;color:#000;}