body {
  padding: 0;
  margin: 0;
}
 
a {
  text-decoration: none;
  color: black;
}
button {
  border: 0;
  background-color: transparent;
  outline: none;
}
#bgi {
  width: 100%;
  height: 2400px;
}
#header-top {
  width: 100%;
  height: 88px;
}
.header-top-border{
  height: 88px;
  width: 1154px;
  margin: 0 auto;
  position: relative;
}
.logo {
  display: inline-block;
}
.logo img {
  margin-top: 9px;
  width: 196px;
  height: 60px;
  vertical-align: middle;
}
.menu div {
  display: inline-block;
  font-size: 14px;
  font-weight: 400;
  color: #333333;
  margin-left: 50px;
}
#home{
  border-top: 1px solid #006cff;
  color: #006cff;
}
.menu div:hover {
  border-top: 1px solid #006cff;
  color: #006cff;
  cursor: pointer;
  opacity: 0.8;
}
.menu {
  position: absolute;
  right: 0px;
  display: inline-block;
  height: 88px;
  line-height: 88px;
}
#header-bgi {
  width: 100%;
  height: 570px;
  background: url(../img/header-bgi.png);
  background-size: 1920px 570px;
  margin: 0 auto;
}
.header-bgi-border{
  height: 570px;
  width: 1154px;
  margin: 0 auto;
  position: relative;
}
.title {
  height: 46px;
  font-size: 48px;
  font-weight: 400;
  color: white;
  line-height: 36px;
  padding-top: 176px;
}

.brief-introduction {
  height: 55px;
  font-size: 56px;
  font-weight: bold;
  color: white;
  line-height: 36px;
  margin-top: 30px;
}
#header-left .download {
  display: inline-block;
  text-align: center;
  line-height: 54px;
  width: 192px;
  height: 54px;
  background: #0ed13c;
  border-radius: 6px;
  font-size: 24px;
  font-weight: 400;
  color: white;
  margin-top: 35px;
  cursor: pointer;
}
#header-left .download:hover{
  background: #13DE43;
}
#header-left .details{
  width:192px;
  height:54px;
  background:#FFAE00;
  border-radius:6px;
  font-size:24px;
  font-weight:400;
  color:#FEFEFE;
  line-height:36px;
  cursor: pointer;
  margin-left: 50px;
}
#header-left .details:hover{
  background:#FFBB29;
}
.apply {
  height: 13px;
  font-size: 14px;
  font-weight: 400;
  color: white;
  line-height: 36px;
  opacity: 0.5;
  margin-top: 27px;
}
.open-beta {
  width: 43px;
  height: 14px;
  position: absolute;
  left: 236px;
  top: 182px;
  z-index: 999;
}
.open-beta-bgi {
  width: 69px;
  height: 31px;
  position: absolute;
  left: 222px;
  top: 173px;
}
#header-right {
  width: 701px;
  height: 481px;
  background: url(../img/header-logo.png);
  background-size: 701px 481px;
  background-repeat: no-repeat;
  position: absolute;
  right: 0;
  top: 45px;
}
#content-border{
  width: 1154px;
  height: 1672px;
  margin: 0 auto;
}
#engine{
  height: 537px;
  position: relative;
}
.engine-img{
  position: absolute;
  top: 136px;
}
.engine-img img{
  width: 418px;
  height: 334px;
}
.engine-title{
  height:41px;
  font-size:42px;
  font-weight:400;
  color:#333333;
  position: absolute;
  left: 573px;
  top: 238px;
}

.engine-text{
  width:319px;
  height:15px;
  font-size:16px;
  font-weight:400;
  color:#888888;
  position: absolute;
  left: 574px;
  top: 309px;
}

#monitor{
  height: 518px;
  position: relative;
  display: none;
}
.monitor-title{
  height:41px;
  font-size:42px;
  font-weight:400;
  color:#333333;
  position: absolute;
  top: 233px;
}

.monitor-text{
  width:317px;
  height:15px;
  font-size:16px;
  font-weight:400;
  color:#888888;
  position: absolute;
  top: 304px;
}

.monitor-img{
  position: absolute;
  left: 544px;
  top: 148px;
}
.monitor-img img{
  width: 402px;
  height: 270px;
}
#upgrade{
  position: relative;
  height: 617px;
  display: none;
}
.upgrade-img{
  position: absolute;
  top: 158px;
}
.upgrade-img img{
  width: 440px;
  height: 282px;
}
.upgrade-title{
  height:42px;
  font-size:42px;
  font-weight:400;
  color:#333333;
  position: absolute;
  top: 273px;
  left: 556px;
}

.upgrade-text{
  width:347px;
  height:16px;
  font-size:16px;
  font-weight:400;
  color:#888888;
  position: absolute;
  top: 345px;
  left: 556px;
}

#footer-border{
  margin: 0 auto;
  width: 1154px;
  height: 70px;
  text-align: center;
  line-height: 70px;
}
.copyright{
  height:14px;
  font-size:14px;
  font-weight:400;
  color:#666666;
}