html {
  min-width: 1200px;
}
div {
  margin: 0;
  padding: 0;
  /*font-family: '黑体';*/
}
li {
  list-style: none;
}
body {
  margin: 0 auto;
  padding: 0;
  width: 100%;
  overflow-x: auto;
  position: relative;
  background: url('../images/bg.jpg') center top no-repeat;
  background-size: 100%;
}
.nav,
.part1,
.part2,
.part3,
.part4 {
  width: 100%;
  position: relative;
}

.nav {
  min-width: 1200px;
  width: 100%;
  min-height: 75px;
  background-color: #252525;
  vertical-align: middle;
  box-sizing: border-box;
  position: fixed;
  z-index: 1000;
}
.nav .logo {
  position: absolute;
  top: 9%;
  width: 9%;
  left: 5%;
  height: 80%;
  cursor: pointer;
}
.nav .logo img {
  width: 80%;
}

.nav .nav-ul {
  display: inline-block;
  position: absolute;
  top: 30%;
  left: 14%;
  padding-left: 1%;
  width: 44%;
  min-width: 970px;
  height: 37px;
  margin: 0;
}
.nav .nav-ul > li {
  display: inline-block;
  color: #707477;
  text-align: center;
  padding: 0 1%;
  cursor: pointer;
}
.nav .nav-ul > li > a {
  text-decoration: none;
  color: #707477;
  font-size: 22px;
}
.nav .nav-ul > li.active a {
  color: #dbdbdb;
}
.nav .nav-ul > li:hover a {
  color: #dbdbdb;
}

.nav .nav-right {
  display: inline-block;
  position: absolute;
  top: calc(50% - 39px);
  left: 68%;
  width: 410px;
  height: 100%;
  vertical-align: middle;
}
.nav .enter {
  display: inline-block;
  width: 40%;
  height: 77px;
  vertical-align: middle;
}
.nav .enter a {
  width: 50px;
  height: 50px;
  display: inline-block;
  margin: 10px 0;
}
.nav .enter .fb {
  background: url('../images/tiny-pic.png') -70px 0 no-repeat;
}
.nav .enter .youtube {
  background: url('../images/tiny-pic.png') -145px 0 no-repeat;
}
.nav .enter .photo {
  background: url('../images/tiny-pic.png') -210px 0 no-repeat;
}
.nav .changeLan {
  display: inline-block;
  width: 190px;
  height: 40px;
  line-height: 40px;
  border: 1px solid #dbdbdb;
  border-radius: 6px;
  vertical-align: middle;
  color: #dbdbdb;
  cursor: pointer;
  background: url(../images/arrow-down.png) 97% center no-repeat;
}
.nav .changeLan .curLan {
  padding-left: 3%;
}
.nav .changeLan:hover .change {
  display: block;
  animation: mymove 0.3s ease-in-out 1;
  -webkit-animation: mymove 0.3s ease-in-out 1; /* Safari 和 Chrome */
}
@keyframes mymove {
  from {
    height: 0;
  }
  to {
    height: 220px;
  }
}
.nav .changeLan .change {
  display: none;
  position: relative;
  width: 100%;
  height: 220px;
  padding-top: 3%;
  margin-top: 10px;
  background-color: #252525;
  border-radius: 6px;
  z-index: 500;
}
.nav .changeLan .change ul {
  width: 100%;
  padding: 0;
}
.changeLan .change > ul > li {
  width: 100%;
  line-height: 40px;
  text-align: center;
}
.changeLan .change > ul > li > a {
  display: block;
  width: 100%;
  line-height: 40px;
  font-size: 18px;
  color: #dbdbdb;
  text-align: center;
  text-decoration: none;
}
.nav .changeLan .change ul > li:hover {
  background-color: #3f3f3f;
}

.part1-bg,
.part2-bg,
.part3-bg,
.part4-bg {
  width: 100%;
  position: relative;
}

.part1 {
  min-height: 579px;
  padding-top: 7%;
}
.part1 .logo {
  position: absolute;
  top: 12%;
  left: 38%;
  width: 21%;
  height: 24%;
}
.part1 .logo img {
  width: 100%;
  border: none !important;
}
.part1 .ddt-icon {
  position: absolute;
  top: 82%;
  left: 20%;
  width: 6.33%;
  height: 13%;
  background: url(../images/icon-bx.png) top center no-repeat;
  background-size: 100%;
}
.part1 .app-store {
  position: absolute;
  top: 84%;
  left: 29%;
  width: 15%;
  height: 10%;
  background: url(../images/app-store.png) top center no-repeat;
  background-size: 100%;
}
.part1 .google-play {
  position: absolute;
  top: 84%;
  left: 47%;
  width: 15%;
  height: 10%;
  background: url(../images/store-google-play.png) top center no-repeat;
  background-size: 100%;
}
.part1 .android-download {
  position: absolute;
  top: 84%;
  left: 65%;
  width: 15%;
  height: 10%;
  background: url(../images/download-for-android.png) top center no-repeat;
  background-size: 100%;
}

.part2 {
  min-height: 837px;
}
.part2 .intro1 {
  position: absolute;
  top: 9%;
  left: 60%;
  height: 32%;
  width: 32%;
  min-width: 402px;
  overflow-y: auto;
  padding-left: 3%;
  line-height: 30px;
}
.part2 .intro1 .title-weight {
  font-size: 40px;
  font-weight: bold;
  margin: 0;
  line-height: 50px;
  font-family: 'SupercellHeadline-Heavy', sans-serif;
}
.part2 .intro1 .text {
  text-align: justify;
  display: block;
  margin-top: 3%;
  color: #000;
}
.part2 .intro1 .weight {
  font-weight: bolder;
  font-size: 21px;
  line-height: 26px;
}
.part2 .intro1::-webkit-scrollbar {
  /*滚动条整体样式*/
  height: 100%; /*高宽分别对应横竖滚动条的尺寸*/
  width: 10px;
}
.part2 .intro1::-webkit-scrollbar-thumb {
  /*滚动条里面小方块*/
  border-radius: 5px;
  -webkit-box-shadow: inset 0 0 5px #c9c9c9;
  background: #e7e7e7;
}
.part2 .intro1::-webkit-scrollbar-track {
  /*滚动条里面轨道*/
  -webkit-box-shadow: inset 0 0 5px #fff;
  border-radius: 5px;
}
.part2 .intro2 {
  position: absolute;
  top: 55%;
  left: 7%;
  width: 49%;
  min-width: 938px;
  height: 12%;
  padding-left: 4%;
  color: #000;
  line-height: 25px;
}
.part2 .intro2 h2 {
  font-size: 40px;
  line-height: 42px;
  margin: 0;
}
.part2 .ncp {
  position: absolute;
  top: 61%;
  left: 74%;
  width: 24%;
  height: 38%;
  overflow: hidden;
}
.part2 .ncp img {
  position: relative;
  opacity: 1;
  width: 100%;
  left: 0;
}
.ncp-move {
  animation: ncpMove 0.6s ease-in 1;
  -webkit-animation: ncpMove 0.6s ease-in 1; /* Safari 和 Chrome */
}
@keyframes ncpMove {
  from {
    opacity: 0;
    left: 15%;
  }
  to {
    opacity: 1;
    left: 0;
  }
}

.part2 .time-event {
  position: absolute;
  top: 72%;
  left: 3.5%;
  height: 160px;
  width: 72%;
  min-width: 970px;
  line-height: 25px;
  text-align: center;
}
.part2 .time-event span {
  position: relative;
  display: inline-block;
  top: 0;
  left: 0;
  width: 19%;
  padding: 0 2%;
  border-right: 1px solid #e7e7e7;
  font-size: 17px;
  font-family: Calibri;
  opacity: 0;
}
.part2 .time-event span:last-child {
  border-right: 0px solid #e7e7e7;
}
.part2 .time-event span:nth-child(1) {
  opacity: 1;
  min-width: 120px;
  width: 12%;
  padding: 0 2%;
}
.event-move1 {
  animation: timeEventMove 0.6s ease-in 1;
  -webkit-animation: timeEventMove 0.6s ease-in 1; /* Safari 和 Chrome */
}

.part2 .time-event span:nth-child(2) {
  opacity: 1;
  min-width: 180px;
  width: 21%;
  padding: 0 2%;
}
.event-move2 {
  animation: timeEventMove 0.6s ease-in 0.1s 1;
  -webkit-animation: timeEventMove 0.6s ease-in 0.1s 1; /* Safari 和 Chrome */
}

.part2 .time-event span:nth-child(3) {
  opacity: 1;
  min-width: 180px;
  width: 21%;
  padding: 0 2%;
}
.event-move3 {
  animation: timeEventMove 0.6s ease-in 0.2s 1;
  -webkit-animation: timeEventMove 0.6s ease-in 0.2s 1; /* Safari 和 Chrome */
}
.part2 .time-event span:nth-child(4) {
  opacity: 1;
  min-width: 180px;
  padding: 0 2%;
}
.event-move4 {
  animation: timeEventMove 0.6s ease-in 0.3s 1;
  -webkit-animation: timeEventMove 0.6s ease-in 0.3s 1; /* Safari 和 Chrome */
}
@keyframes timeEventMove {
  from {
    top: 84%;
    opacity: 0;
  }
  to {
    top: 0;
    opacity: 1;
  }
}
.part2 .time {
  position: absolute;
  top: 90.5%;
  left: 5.3%;
  width: 65%;
  min-width: 906px;
  color: #f15f3f;
  line-height: 25px;
  text-align: center;
}
.part2 .time span {
  display: inline-block;
  width: 24%;
  font-size: 14px;
}

.part3 {
  position: relative;
  min-height: 497px;
}
.part3 a {
  position: absolute;
  display: block;
  width: 100%;
  height: 90%;
  top: 0;
  left: 0;
  text-decoration: none;
  color: #fff;
}
.part3 a .fb-text {
  position: absolute;
  width: 35%;
  min-width: 624px;
  top: 66.5%;
  left: 53%;
  font-size: 25px;
}
.part3 a .fb-text img {
  width: 100%;
}
.part3 a .fb-text span {
  position: absolute;
  top: 16%;
  left: 25%;
}

.part4 .youtube {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 5%;
  left: 0;
  overflow: hidden;
}

.part4 .youtube .swiper-slide {
  width: 100%;
}
.my-bullet {
  width: 15px;
  height: 15px;
  display: inline-block;
  border-radius: 100%;
  background: #dbdbdb;
  margin: 10px;
}
.my-bullet-active {
  background: #8dace5;
}
.swiper-button-next {
  width: 10%;
  height: 5%;
  margin-top: -100px;
  background-color: #303030;
  color: white;
  cursor: pointer;
}

.youtube1,
.youtube2,
.youtube3,
.youtube4 {
  display: inline-block;
  width: 40%;
  /*margin: 0 3%;*/
  box-shadow: 0px 0px 25px #747474;
}
.youtube1,
.youtube3 {
  margin: 0 1% 0 8%;
}
.youtube2,
.youtube4 {
  margin: 0 8% 0 1%;
}

.video-content {
  position: relative;
  width: 100%;
  background-color: #303030;
}
.video-content img {
  width: 100%;
}
.video-content .play-btn {
  position: absolute;
  top: 34%;
  left: 43%;
  width: 22%;
  height: 43%;
  background: url(../images/play-btn.png) top center no-repeat;
  background-size: 100%;
  cursor: pointer;
}
.content-bottom {
  position: relative;
  width: 100%;
  height: 65px;
  background-color: #303030;
  color: #fff;
  vertical-align: middle;
}
.content-bottom .title {
  display: inline-block;
  padding: 20px 35px;
  vertical-align: middle;
}
.content-bottom .youtube-icon {
  position: absolute;
  display: inline-block;
  vertical-align: middle;
  right: 3%;
  top: 17%;
  width: 13%;
  min-width: 93px;
  height: 41px;
}
.content-bottom .youtube-icon img {
  width: 100%;
}

.video-box {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 100;
  padding: 15% calc(50% - 320px);
}
.video-box .close {
  position: relative;
  color: #fff;
  width: 30px;
  font-size: 35px;
  font-weight: lighter;
  cursor: pointer;
  top: -380px;
  left: 650px;
}

.foot {
  position: relative;
  width: 100%;
  height: 250px;
  background-color: #252525;
}

.foot .enter {
  position: absolute;
  top: 20%;
  left: 10%;
  width: 14%;
  min-width: 265px;
  height: 80px;
  display: inline-block;
  vertical-align: middle;
}
.foot .enter a {
  width: 58px;
  height: 58px;
  display: inline-block;
  margin: 10px 0;
}
.foot .enter .seven-road {
  background: url('../images/tiny-pic.png') 0 0 no-repeat;
}
.foot .enter .fb {
  background: url('../images/tiny-pic.png') -73px 0 no-repeat;
}
.foot .enter .youtube {
  background: url('../images/tiny-pic.png') -145px 0 no-repeat;
}
.foot .enter .photo {
  background: url('../images/tiny-pic.png') -210px 0 no-repeat;
}
.foot .store {
  position: absolute;
  top: 26%;
  right: 10%;
  width: 580px;
  height: 100px;
}
.foot .store .app-store,
.google-play,
.android-download {
  display: inline-block;
  width: 30%;
  height: 100px;
}
.foot .store img {
  width: 100%;
  border: none;
}

.all {
  width: 100%;
  height: 84%;
  position: relative;
}
.screen {
  width: 100%;
  height: 100%;
  overflow: hidden;
  position: relative;
}

.screen ul {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  margin: 0;
  padding: 0;
}
.screen ul li {
  overflow: hidden;
  float: left;
  padding: 14px 0;
}
ol {
  position: absolute;
  left: 49%;
  bottom: 9%;
  line-height: 20px;
  text-align: center;
  padding: 0;
}
ol li {
  display: inline-block;
  width: 20px;
  height: 20px;
  background: #dbdbdb;
  border-radius: 50%;
  margin-left: 10px;
}
ol li.current {
  background: #8dace5;
}

#arr {
  display: block;
}
#arr span {
  width: 60px;
  height: 60px;
  border-radius: 50% 0 0 50%;
  position: absolute;
  left: 5px;
  top: 45%;
  margin-top: -20px;
  background: #303030;
  cursor: pointer;
  line-height: 60px;
  text-align: center;
  font-weight: bold;
  font-family: '黑体';
  font-size: 42px;
  color: #fff;
}
#arr #right {
  right: 5px;
  left: auto;
}
#arr #left {
  display: none;
}

@media (max-width: 1200px) {
  .nav .nav-ul > li > a {
    font-size: 20px;
  }
  .part2 .intro1 .title-weight {
    font-size: 27px;
  }
  .part2 .intro1 .text {
    font-size: 14px;
    line-height: 24px;
  }
  .part2 .intro1 .weight {
    font-size: 18px;
    line-height: 22px;
  }
  .part2 .intro2 {
    min-width: 750px;
  }
  .part2 .intro2 h2 {
    font-size: 29px;
    line-height: 34px;
  }
  .part2 .intro2 p {
    font-size: 14px;
  }
} /*>=1024的设备*/
@media screen and (min-width: 1200px) and (max-width: 1366px) {
  .nav .nav-ul > li > a {
    font-size: 20px;
  }
  .part2 .intro1 .title-weight {
    font-size: 27px;
  }
  .part2 .intro1 .text {
    font-size: 14px;
    line-height: 25px;
  }
  .part2 .intro1 .weight {
    font-size: 18px;
    line-height: 22px;
  }
  .part2 .intro2 {
    min-width: 750px;
  }
  .part2 .intro2 h2 {
    font-size: 27px;
    line-height: 36px;
  }
  .part2 .intro2 p {
    font-size: 15px;
  }
}

@media (min-width: 1366px) {
  .part2 .intro1 .title-weight {
    font-size: 30px;
  }
  .part2 .intro1 .text {
    font-size: 15px;
    line-height: 26px;
  }
  .part2 .intro1 .weight {
    font-size: 19px;
    line-height: 24px;
  }
  .part2 .intro2 h2 {
    font-size: 30px;
    line-height: 38px;
  }
}

@media (min-width: 1440px) {
  .part2 .intro1 .title-weight {
    font-size: 35px;
  }
  .part2 .intro1 .text {
    font-size: 15px;
    line-height: 28px;
  }
  .part2 .intro1 .weight {
    font-size: 20px;
    line-height: 26px;
  }
  .part2 .intro2 h2 {
    font-size: 35px;
    line-height: 40px;
  }
  .part2 .intro2 p {
    font-size: 16px;
  }
}

@media (min-width: 1680px) {
  .part2 .intro1 .title-weight {
    font-size: 40px;
  }
  .part2 .intro1 .text {
    font-size: 16px;
    line-height: 30px;
  }
  .part2 .intro1 .weight {
    font-size: 20px;
    line-height: 26px;
  }
  .part2 .intro2 {
    min-width: 940px;
  }
  .part2 .intro2 h2 {
    font-size: 40px;
    line-height: 50px;
  }
}

/*loading 开始*/
.main {
  display: none;
  box-sizing: border-box;
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 500;
  width: 100%;
  height: auto;
}
.main a {
  display: block;
  text-align: center;
  font-size: 20px;
  margin-top: 200px;
}
.loadEffect {
  width: 100px;
  height: 100px;
  position: relative;
  margin: 0 auto;
  margin-top: 100px;
}
.loadEffect span {
  display: inline-block;
  width: 30px;
  height: 10px;
  border-top-left-radius: 5px;
  border-bottom-left-radius: 5px;
  background: #ffffff;
  position: absolute;
  -webkit-animation: load 1.04s ease infinite;
}
@-webkit-keyframes load {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0.2;
  }
}
.loadEffect span:nth-child(1) {
  left: 0;
  top: 50%;
  margin-top: -5px;
  -webkit-animation-delay: 0.13s;
}
.loadEffect span:nth-child(2) {
  left: 10px;
  top: 20px;
  -webkit-transform: rotate(45deg);
  -webkit-animation-delay: 0.26s;
}
.loadEffect span:nth-child(3) {
  left: 50%;
  top: 10px;
  margin-left: -15px;
  -webkit-transform: rotate(90deg);
  -webkit-animation-delay: 0.39s;
}
.loadEffect span:nth-child(4) {
  top: 20px;
  right: 10px;
  -webkit-transform: rotate(135deg);
  -webkit-animation-delay: 0.52s;
}
.loadEffect span:nth-child(5) {
  right: 0;
  top: 50%;
  margin-top: -5px;
  -webkit-transform: rotate(180deg);
  -webkit-animation-delay: 0.65s;
}
.loadEffect span:nth-child(6) {
  right: 10px;
  bottom: 20px;
  -webkit-transform: rotate(225deg);
  -webkit-animation-delay: 0.78s;
}
.loadEffect span:nth-child(7) {
  bottom: 10px;
  left: 50%;
  margin-left: -15px;
  -webkit-transform: rotate(270deg);
  -webkit-animation-delay: 0.91s;
}
.loadEffect span:nth-child(8) {
  bottom: 20px;
  left: 10px;
  -webkit-transform: rotate(315deg);
  -webkit-animation-delay: 1.04s;
}
/*loading 结束*/