article,aside,blockquote,body,button,code,dd,dialog,div,dl,dt,fieldset,figure,footer,form,h1,h2,h3,h4,h5,h6,header,hgroup,input,legend,li,nav,ol,p,pre,section,td,textarea,th,ul{margin:0;padding:0}
input,select,textarea{font-size:100%}
table{border-collapse:collapse;border-spacing:0}
fieldset,img{border:0}
caption,th{text-align:left}
h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:500}
li,ol,ul{list-style:none}
em,i{font-style:normal}
del{text-decoration:line-through}
address,caption,cite,code,dfn,em,th,var{font-style:normal;font-weight:500}
img{border:0;max-width:100%}
img,input{vertical-align:middle}
a:focus,input:focus{outline:0}
a{color:#353d44;text-decoration:none}
*{outline:0;-webkit-tap-highlight-color:transparent;-webkit-box-sizing:border-box}
html{-webkit-text-size-adjust:none;overflow-y:scroll}
body{min-width:320px;line-height:1.5;color:#353d44;font-family:Arial,Helvetica,STHeiTi,sans-serif;background:#F4F4F4;width:100%}
.w{margin:0 auto;max-width:15rem}
html{font-size:21.33px}
body{font-size:12px}
@media screen and (min-width:320px){html{font-size:21.33px}
    body{font-size:12px}
}
@media screen and (min-width:360px){html{font-size:24px}
    body{font-size:12px}
}
@media screen and (min-width:375px){html{font-size:25px}
    body{font-size:12px}
}
@media screen and (min-width:384px){html{font-size:25.6px}
    body{font-size:14px}
}
@media screen and (min-width:400px){html{font-size:26.67px}
    body{font-size:14px}
}
@media screen and (min-width:414px){html{font-size:27.6px}
    body{font-size:14px}
}
@media screen and (min-width:424px){html{font-size:28.27px}
    body{font-size:14px}
}
@media screen and (min-width:480px){html{font-size:32px}
    body{font-size:15.36px}
}
@media screen and (min-width:540px){html{font-size:36px}
    body{font-size:17.28px}
}
@media screen and (min-width:720px){html{font-size:48px}
    body{font-size:23.04px}
}
@media screen and (min-width:750px){html{font-size:50px}
    body{font-size:24px}
}