html,
body,
div,
p,
ul,
li,
dl,
dt,
ol,
h1,
h2,
h3,
a,
span,
i,
header,
footer {
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: rgba(255, 255, 255, 0);
  -webkit-appearance: none;
}

html,
body {
  background: #fff;
  font-family: "Microsoft Yahei", Helvetica, STHeiTi, sans-serif;
  font-size: 14px;
  color: #333;
  -webkit-text-size-adjust: none;
}

input,
button {
  outline: none;
  font-family: "Microsoft Yahei";
}

::-webkit-input-placeholder {
  color: #ccc;
}

i {
  font-style: normal;
  display: inline-block;
}

ul {
  list-style: none;
}

h1 {
  font-size: 18px;
}

h2 {
  font-size: 1.2em;
  font-weight: normal;
}

h3 {
  font-weight: normal;
  font-size: 16px;
}

a {
  text-decoration: none;
}

a.active {
  text-decoration: none;
}

em {
  font-style: normal;
}

li {
  display: list-item;
  text-align: -webkit-match-parent;
}

img {
  border: 0;
}

/* tools */
.clearfix:after {
  clear: both;
  display: block;
  height: 0;
  visibility: hidden;
  line-height: 0;
  content: '\20';
}

.clearfix {
  *display: table;
  *zoom: 1;
}

.fl {
  display: inline;
  float: left;
}

.fr {
  display: inline;
  float: right;
}

.block {
  display: block;
}

.none {
  display: none;
}

html, body {
  height: 100%;
  min-width: 1200px;
}

body {
  background: #ffffff;
  overflow: scroll;
  min-width: 1200px;
}

.header {
  width: 100%;
  height: 59px;
  border-bottom: 2px solid #eeeeee;
}
.header .header-wraper {
  width: 100%;
  height: 59px;
}
.header .header-wraper .left {
  float: left;
  width: 260px;
  height: 40px;
  margin-top: 10px;
  margin-left: 20px;
}
.header .header-wraper .right {
  float: right;
  margin-right: 21px;
}
.header .header-wraper .right span {
  background: url("../img/more-icon.png") no-repeat center center;
  float: left;
  width: 8px;
  height: 5px;
  margin-top: 25px;
  margin-left: 14px;
}
.header .header-wraper .right a {
  float: left;
  font-size: 14px;
  margin-left: 24px;
  color: #626a6f;
  height: 59px;
  line-height: 59px;
}

.nav {
  width: 100%;
  height: 90px;
}
.nav .nav-wraper {
  width: 845px;
  height: 90px;
  margin: 0 auto;
  text-align: center;
}
.nav .nav-wraper ul li {
  display: inline-block;
  margin-left: 70px;
  height: 90px;
  line-height: 90px;
  list-style: none;
}
.nav .nav-wraper ul li a {
  font-size: 16px;
  color: #333333;
}
.nav .nav-wraper ul li .changecolor {
  color: #1ea5fa;
}
.nav .nav-wraper ul li:first-child {
  margin-left: 0;
}

.banner {
  height: 700px;
  width: 100%;
  background: url("../img/banner_bg.png") no-repeat center center;
}
.banner .banner-wraper {
  height: 700px;
  width: 1200px;
  margin: 0 auto;
  overflow: hidden;
}
.banner .banner-wraper .banner-img {
  width: 600px;
  height: 700px;
  position: relative;
  float: left;
}
.banner .banner-wraper .banner-img img {
  position: absolute;
  top: 50%;
  left: 50%;
  margin-left: -165px;
  margin-top: -165px;
}
.banner .banner-wraper .banner-detail {
  width: 600px;
  height: 700px;
  float: left;
  margin-top: 186px;
  position: relative;
}
.banner .banner-wraper .banner-detail h1 {
  font-size: 36px;
  color: #ffffff;
  margin: auto;
  margin-bottom: 30px;
}
.banner .banner-wraper .banner-detail p {
  font-size: 18px;
  color: #ffffff;
  margin-bottom: 50px;
  line-height: 28px;
}
.banner .banner-wraper .banner-detail .info {
  margin-bottom: 0;
  font-size: 12px;
}
.banner .banner-wraper .banner-detail .QR-code-wraper {
  display: none;
  background: #ffffff;
  width: 180px;
  height: 196px;
  text-align: center;
  position: absolute;
  box-shadow: 2px 2px 9px rgba(89, 89, 89, 0.2);
  border-radius: 5%;
  z-index: 999;
  bottom: 530px;
  left: -15px;
}
.banner .banner-wraper .banner-detail .QR-code-wraper img {
  margin-top: 15px;
}
.banner .banner-wraper .banner-detail .QR-code-wraper p {
  font-size: 16px;
  color: #999999;
}
.banner .banner-wraper .banner-detail a {
  display: block;
  width: 150px;
  height: 36px;
  border: 2px solid #f2f2f2;
  line-height: 36px;
  text-align: center;
  font-size: 18px;
  color: #333333;
  cursor: pointer;
  background: #E3F0FF;
  border-radius: 4px;
  margin-top: 24px;
}

.banner .banner-wraper .banner-detail .linux {
  display: inline-block;
  width: 250px;
  margin-top: 30px;
  margin-right: 30px;
}

.footer {
  width: 100%;
  margin-top: 163px;
  padding-bottom: 37px;
}
.footer .footer-wraper {
  width: 100%;
}
.footer .footer-wraper .footer-font {
  text-align: center;
  font-size: 12px;
  color: #a1a7aa;
  margin: auto;
}