/* 初始 */
body { margin:0 auto; max-width:640px; background:#f4f4f4; font-size:12px;  color:#333;  }
html, html body { height:100%; }
div, span, p, form, ul, ol, li, h1, h2, h3, h4, h5, h6, th, td, dl, dt, dd, caption, a, legend, hr, b,blockquote,textarea { margin:0; padding:0; border:0;}
ul,li,ol { list-style-type:none; }
table, input, textarea, select, button { font-size:12px;vertical-align:middle; }
img, a img { border:none; }
table { border-collapse:collapse; border-spacing:0; }/*相邻边被合并*/
address, caption, cite, code, dfn, em, th, var { font-style:normal; font-weight:normal; }
q:before, q:after { content:''; }

/* 默认链接颜色 */
a:link, a:visited { outline-style:none; text-decoration:none; }
a:hover, a:active { color:#c00; text-decoration:underline; }

.mask_none{display: none;}
.wrapper{width: 100%; background: #fff;}
.w100{width: 100%;}
.qcode{width: 35%;margin: 0 auto;padding: 20px 0;}
.download{overflow: hidden; width: 95%;margin: 0 auto;}
.download .btn{width: 55%;margin: 0 auto; padding: 10px 0;}
.logo{width: 60%;margin: 0 auto;padding: 30px;}
.footer{width: 90%;margin: 0 auto; color: grey;padding-bottom: 40px;text-align: center;}
.wechat { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.8) url(wxdn.png) no-repeat right top; -webkit-background-size: 90% auto;background-size: 90% auto; z-index: 999; }