@charset "utf-8";
body, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, code, form, fieldset, legend, input, button, textarea, p, blockquote, table, th, td { margin: 0; padding: 0; }
fieldset, img, input, textarea, button, select { background: none no-repeat scroll; border: 0 none; }
address, caption, cite, code, dfn, em, strong, th, var, optgroup { font-style: normal; font-weight: normal; }
h1, h2, h3, h4, h5, h6 { font-size: 100%; font-weight: normal; }
input, button, textarea, select, optgroup, option { font-family: inherit; font-size: inherit; font-style: inherit; font-weight: inherit; vertical-align: middle; }
ol, ul, li { list-style: none; }
a { text-decoration: none; }
a:hover { text-decoration: none; }
body {font-family:"\5FAE\8F6F\96C5\9ED1", "\5B8B\4F53", Tahoma;}
header, footer, section, article { display: block; }
header {overflow: hidden;min-width: 320px;max-width: 640px; margin:0 auto }
header div { width: 100%; margin: 0 auto; }
header div img { width: 100%; height: auto; vertical-align: top; display: block; }

body{max-width: 640px;min-width: 320px;margin: 0 auto;}
.ad-wrapper{position:relative;background:#000;z-index:-1;}
.ad-text-box{position:absolute;left:0;top:0;right:0;width:100%;}
.ad-pic-box{position:relative;z-index:99; text-align:center;}
.ad-pic-box img{width:100%;vertical-align:top;display:inline-block;height:auto;overflow:hidden;}

/*需要更改background值*/
.lyb{ background:#540000; padding:10px 0 45px 0; overflow:auto;min-width: 320px;max-width: 640px; margin:0 auto; height:500px;}