html,
body,
div,
span,
applet,
object,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ul,
ol,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    background: transparent;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

body {
    font-size: 14px;
    font-family: "Microsoft YaHei", Verdana, sans-serif;
    line-height: 1.5;
    word-wrap: break-word;
    word-break: break-all;
    background-color: #343434;
    color: #fff;
    letter-spacing:1px;     
}

a {
    color: #fff;
    -webkit-transition: all .35s ease 0s;
    transition: all .35s ease 0s;
    text-decoration: none;
}

a:hover {
    color: #44aa54;
    text-decoration: none;
    outline: 0
}

.warp {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 5%;
}

.box {
    width: 100%;
    max-width: 460px;
    background-color: #1c1c1c;
    border-radius: 10px;
    box-shadow: 0 2px 20px #000;
    text-align: center;
    padding: 30px;
}

.box h1 {
    color: #44aa54;
    font-weight: 400;    
    font-size: 2.6em;
    margin: 0 0 12px 0;
    letter-spacing: 3px; 
}

.box h2 {
    font-size: 1.3em;
    font-weight: 400;
    color: #44aa54;
    margin: 0 0 12px 0;
}
.box h3 {
    font-size: 1.3em;
    font-weight: 400;
    color: #fff;
    margin: 0 0 12px 0;    
}

.box section {
    font-size: 1.3em;
    padding: 10px;
    border: 1px solid #fff;
    margin: 20px 0;
}

.box-btn {
    margin: 20px 0;
}

.box-btn>a {
    display: block;
    line-height: 3.6;
    background-color: #44aa54;
    color: #fff;
    border-radius: 10px;
    font-size: 16px;
}

.f-gray {
    color: #646464;
}

@media screen and (max-width:460px) {
    body {
        font-size: 12px;
    }
}