@charset "utf-8";
html {
  font-family: "Avenir", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: #2c3e50;
  width: 100vw;
  height: 100vh;
  background: #f7f7f7;
  overflow-x: hidden;
  overflow-y: hidden;
  max-width: 3840px;
  min-width: 640px;
  margin: 0 auto;
  position: relative;
  box-sizing: border-box;
}
html body {
  width: 100%;
  height: 100%;
}
body,
ul,
ol,
dl,
dd,
h1,
h2,
h3,
h4,
h5,
h6,
figure,
form,
fieldset,
legend,
input,
textarea,
button,
p,
blockquote,
th,
td,
pre,
xmp {
  margin: 0;
  padding: 0;
}
/* h1,h2,h3,h4,h5,h6,small,big,input,textarea,button,select{font-size:100%} */
/* h1,h2,h3,h4,h5,h6,b,strong{font-weight:normal} */
table {
  border-collapse: collapse;
  border-spacing: 0;
  text-align: left;
}
caption,
th {
  text-align: inherit;
}
ul,
ol,
menu {
  list-style: none;
}
fieldset,
img {
  border: 0;
}
img,
object,
input,
textarea,
button,
select {
  vertical-align: middle;
}
article,
aside,
footer,
header,
section,
nav,
figure,
figcaption,
hgroup,
details,
menu {
  display: block;
}
audio,
canvas,
video {
  display: inline-block;
  *display: inline;
  *zoom: 1;
}
blockquote:before,
blockquote:after,
q:before,
q:after {
  content: "\0020";
}
textarea {
  overflow: auto;
  resize: vertical;
}
input,
textarea,
button,
select,
a {
  outline: 0 none;
  border: none;
}
button::-moz-focus-inner,
input::-moz-focus-inner {
  padding: 0;
  border: 0;
}
mark {
  background-color: transparent;
}
a,
ins,
s,
u,
del {
  text-decoration: none;
}
a:hover {
  text-decoration: none;
}
sup,
sub {
  vertical-align: baseline;
}
html {
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
  box-sizing: border-box;
}
body {
  line-height: 1;
  -webkit-text-size-adjust: none;
  box-sizing: border-box;
}
hr {
  height: 0.02rem;
  margin: 0.1rem 0;
  border: medium none;
  border-top: 0.02rem solid #cacaca;
}
a {
  color: #333333;
  text-decoration: none;
}
.mask {
  position: absolute;
  z-index: 3;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
}
.mask .cover-img {
  width: 17rem;
}
.mask .cover-button {
  width: 12rem;
  height: 4rem;
  background: rgba(255, 255, 255, 0.45);
  color: #ffffff;
  text-align: center;
  border-radius: 0.5rem;
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
}
.mask .cover-button h4 {
  color: white;
  padding: 4px 0;
  font-weight: 600;
  letter-spacing: 2px;
}
.mask .cover-button p {
  color: white;
  padding: 4px 0;
}