body{font-size: 12px;font-family:Arial,"微软雅黑", Helvetica, sans-serif;word-wrap: break-word;background: #fff;color:#333;}
* {margin: 0;padding: 0;box-sizing: border-box;} 
.clear::after {content: "";display: block;clear: both;}
h1,h2,h3,h4,h5,h6,p,form,hr,em,i,fieldset,legend,th,pre{margin:0;padding:0;font-style:normal;font-weight: normal;}
ol,ul,li,dl,dt,dd{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;border-spacing:0;}
img{border:0;vertical-align:middle}
a { text-decoration:none;color:#333;}
a:hover {text-decoration:none;color:#000;}
.mainWidth{width:1200px;margin: auto;}
nav{margin:auto;height:80px;line-height:80px;background: #fff;display: flex;}
nav .logobox{width:450px;background:url(../img/toplogbg.png) no-repeat right top ;font-size:24px;color:#fff;font-weight:bold;text-align: center;padding-right:40px;}
nav .linkbox{flex: auto;}
nav .linkbox li{display: inline-block;}
nav .linkbox a{display:inline-block;line-height:20px;padding:20px;color: #251e1c;text-transform: uppercase;font-size:16px;font-weight: 600;font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;}
nav .linkbox a:hover{border-bottom: solid 2px #007579;background:#eee;}