.clearfix::after {
  content: "";
  display: block;
  clear: both;
  visibility: hidden;
}
.container {
  width: 100%;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
}
#cover {
  position: absolute;
  left: 0px;
  top: 0px;
  background: rgba(0, 0, 0, 0.5);
  width: 100%;
  /*宽度设置为100%，这样才能使隐藏背景层覆盖原页面*/
  height: 100%;
  display: none;
  z-index: 999;
}
#cover .qr-code {
  width: 300px;
  height: 350px;
  background-color: #ffffff;
  border-radius: 10px;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  /* IE 9 */
  -moz-transform: translate(-50%, -50%);
  /* Firefox */
  -webkit-transform: translate(-50%, -50%);
  /* Safari 和 Chrome */
  -o-transform: translate(-50%, -50%);
  /* Opera */
  display: table-cell;
  /*主要是这个属性*/
  vertical-align: middle;
  text-align: center;
}
#cover .qr-code .code-img {
  width: 154px;
  height: 154px;
  margin-top: 50px;
}
#cover .qr-code .marked-words {
  color: #666666;
  font-size: 14px;
  margin-top: 5px;
}
#cover .qr-code .confirm {
  width: 300px;
  height: 60px;
  border-top: 2px solid #f5f5f5;
  position: absolute;
  bottom: 0;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
      align-items: center;
  -ms-flex-pack: center;
      justify-content: center;
  font-size: 20px;
  color: #5dc8b6;
  font-weight: 700;
  cursor: pointer;
}
.base {
  width: 100%;
  height: 150px;
  background-color: #5dc8b6;
}
.base .base-top {
  width: 100%;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: center;
      justify-content: center;
  padding-top: 20px;
  margin-bottom: 23px;
}
.base .base-top a {
  display: block;
  font-size: 16px;
  color: #f5f5f5;
  margin-right: 40px;
}
.base .base-top .pitch-on {
  font-weight: 700;
  color: #ffffff;
}
.base .base-center {
  width: 100%;
  height: 21px;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-pack: center;
      justify-content: center;
  -ms-flex-align: center;
      align-items: center;
  margin-bottom: 20px;
}
.base .base-center div {
  color: #f5f5f5;
  font-size: 16px;
  padding: 0 18px;
  border-right: 2px solid #f5f5f5;
}
.base .base-center .last-cont {
  border: none;
}
.base .base-center .put-on {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
      align-items: center;
  border: none;
}
.base .base-center .put-on .put-on-img {
  width: 20px;
  height: 20px;
  margin-right: 10px;
}
.base .base-center .put-on .put-on-skip {
  color: #ffffff;
  font-size: 16px;
}
header {
  height: 80px;
}
header .logo {
  height: 40px;
}
header .container {
  display: -ms-flexbox;
  display: flex;
  -ms-flex-align: center;
      align-items: center;
  -ms-flex-pack: justify;
      justify-content: space-between;
}
header .active a {
  color: #5dc8b6;
}
header .nav li {
  float: left;
  font-size: 16px;
  color: #999;
  margin-left: 40px;
}
.at-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
}
.jiantou {
  position: absolute;
  bottom: 15px;
  left: 50%;
  transform: translateX(-50%);
}
/* reset */
html,
body,
h1,
h2,
h3,
h4,
h5,
h6,
div,
dl,
dt,
dd,
ul,
ol,
li,
p,
blockquote,
pre,
hr,
figure,
table,
caption,
th,
td,
form,
fieldset,
legend,
input,
button,
textarea,
menu {
  margin: 0;
  padding: 0;
}
header,
footer,
section,
article,
aside,
nav,
hgroup,
address,
figure,
figcaption,
menu,
details {
  display: block;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
caption,
th {
  text-align: left;
  font-weight: normal;
}
html,
body,
fieldset,
img,
iframe,
abbr {
  border: 0;
}
i,
cite,
em,
var,
address,
dfn {
  font-style: normal;
}
[hidefocus],
summary {
  outline: 0;
}
li {
  list-style: none;
}
h1,
h2,
h3,
h4,
h5,
h6,
small {
  font-size: 100%;
}
sup,
sub {
  font-size: 83%;
}
pre,
code,
kbd,
samp {
  font-family: inherit;
}
q:before,
q:after {
  content: none;
}
textarea {
  overflow: auto;
  resize: none;
}
label,
summary {
  cursor: default;
}
a,
button {
  cursor: pointer;
}
h1,
h2,
h3,
h4,
h5,
h6,
em,
strong,
b {
  font-weight: bold;
}
del,
ins,
u,
s,
a,
a:hover {
  text-decoration: none;
}
body,
textarea,
input,
button,
select,
keygen,
legend {
  font: 12px;
  color: #333;
  outline: 0;
  font-family: '\5FAE\8F6F\96C5\9ED1';
  -webkit-text-size-adjust: 100%;
}
body {
  background: #fff;
}
a,
a:hover {
  color: #333;
}