html, body {
  padding: 0;
  margin: 0;
  min-width: 1200px;
  height: 100%;
  width: 100%;
}
.nav-wall {
  position: fixed;
  z-index: 2;
  top: 0;
  left: 0;
  height: 80px;
  width: 100vw;
}
.nav-wall > .nav-content {
  position: relative;
  width: 1200px;
  margin: 0 auto;
  height: 100%;
  overflow: hidden;
}
.nav-wall > .nav-content > .name {
  position: absolute;
  top: 20px;
  left: 10px;
  color: #fff;
  font-size: 32px;
  letter-spacing: 5px;
}
.nav-wall > .nav-content > .nav {
  position: absolute;
  top: 25px;
  right: 0;
  color: #fff;
  font-size: 20px;
  letter-spacing: 5px;
}
.nav-wall > .nav-content > .nav > div {
  position: relative;
  margin-left: 50px;
  float: left;
  text-align: center;
}
.nav-wall > .nav-content > .nav > div {
  cursor: pointer;
}
.nav-wall > .nav-content > .nav > .active-home::after {
  content: "";
  position: absolute;
  left: 7px;
  bottom: -10px;
  width: 30px;
  height: 2px;
  border-radius: 10px;
  background: #fff;
}
.nav-wall > .nav-content > .nav > .active-contact::after {
  content: "";
  position: absolute;
  left: 7px;
  bottom: -10px;
  width: 80px;
  height: 2px;
  border-radius: 10px;
  background: #fff;
}
.nav-wall-scroll {
  position: fixed;
  z-index: 2;
  top: 0;
  left: 0;
  height: 80px;
  width: 100vw;
  background: #fff;
  box-shadow: 0 5px 25px rgba(0, 0, 0, .1);
}
.nav-wall-scroll > .nav-content {
  position: relative;
  width: 1200px;
  margin: 0 auto;
  height: 100%;
  overflow: hidden;
}
.nav-wall-scroll > .nav-content > .name {
  position: absolute;
  top: 20px;
  left: 10px;
  color: #afafaf;
  font-size: 30px;
  letter-spacing: 5px;
}
.nav-wall-scroll > .nav-content > .nav {
  position: absolute;
  top: 25px;
  right: 0;
  color: #000;
  font-size: 20px;
  letter-spacing: 5px;
}
.nav-wall-scroll > .nav-content > .nav > div {
  position: relative;
  margin-left: 50px;
  float: left;
  text-align: center;
}
.nav-wall-scroll > .nav-content > .nav > div {
  cursor: pointer;
}
.nav-wall-scroll > .nav-content > .nav > .active-home::after {
  content: "";
  position: absolute;
  left: 7px;
  bottom: -10px;
  width: 30px;
  height: 2px;
  border-radius: 10px;
  background: #000;
}
.nav-wall-scroll > .nav-content > .nav > .active-contact::after {
  content: "";
  position: absolute;
  left: 7px;
  bottom: -10px;
  width: 80px;
  height: 2px;
  border-radius: 10px;
  background: #000;
}


.module {
  width: 100%;
  min-height: 500px; 
}
.content {
  position: relative;
  width: 1200px;
  margin: 0 auto;
  height: 100%;
  overflow: hidden;
  text-align: center;
}
.title {
  letter-spacing: 5px;
}
.desc {
  letter-spacing: 3px;
}

.module-one {
  height: 945px;
  background: url(../image/background-one.png) no-repeat;
  background-size: 100% 945px; 
}
.content-one > .title {
  color: #fff;
  font-size: 35px;
  text-shadow: 0 0 15px rgba(24, 198, 254, 0.67);
  margin-top: 200px;
}
.content-one > .desc {
  color: #fff;
  font-size: 20px;
  text-shadow: 0 0 15px rgba(24, 198, 254, 0.67);
  line-height: 35px;
}
.content-one > img {
  position: absolute;
  bottom: -250px;
  left: -200px;
  width: 1600px;
}

.module-two {
  height: 1420px;
  background: url(../image/background-two.png) no-repeat;
  background-size: 100% 945px;
  background-position: bottom;
}
.content-two > .serial {
  margin-top: 100px;
}
.content-two > .title {
  font-size: 35px;
  margin-top: 25px;
}
.content-two > .desc {
  font-size: 20px;
}
.content-two > .content-img {
  margin-top: 100px;
}

.module-three {
  height: 725px;
}
.content-three > .content-img {
  margin-top: 80px;
  float: left;
}
.content-three > .text {
  float: right;
  margin-top: 140px;
  width: 450px;
}
.content-three > .text > .serial {
  float: left;
}
.content-three > .text > .title {
  font-size: 30px;
  margin-top: 20px;
}
.content-three > .text > .desc {
  font-size: 20px;
  width: 420px;
  line-height: 30px;
  margin-left: 20px;
  margin-top: 40px;
  height: 65px;
}
.content-three > .text > .desc > .item {
  display: block;
  float: left;
  margin-top: 10px;
}
.content-three > .text > .desc > span {
  display: inline-block;
  float: right;
  width: 330px;
  text-align: left;
}

.module-four {
  height: 1140px;
  background: url(../image/background-three.png) no-repeat;
  background-size: 100% 1140px;
}
.content-four > .serial {
  margin-top: 40px;
}
.content-four > .title {
  color: #fff;
  font-size: 35px;
  text-shadow: 0 0 15px rgba(24, 198, 254, 0.67);
  letter-spacing: 20px;
  margin-top: 20px;
}
.content-four > .desc {
  color: #fff;
  font-size: 20px;
  text-shadow: 0 0 15px rgba(24, 198, 254, 0.67);
  line-height: 30px;
  margin-top: -10px;
}
.content-four > .item {
  position: absolute;
  height: 200px;
  width: 170px;
  text-align: center;
}
.content-four > .content-img {
  margin-top: 380px;
}
.content-four > .img-text {
  color: #fff;
  font-size: 25px;
  text-shadow: 0 0 15px rgba(24, 198, 254, 0.67);
  margin-top: -30px;
}
.content-four > .item > span {
  color: #fff;
  font-size: 20px;
}
.item-1 {
  top: 430px;
  left: 175px;
}
.item-2 {
  top: 330px;
  left: 345px;
}
.item-3 {
  top: 430px;
  left: 515px;
}
.item-4 {
  top: 330px;
  left: 685px;
}
.item-5 {
  top: 430px;
  left: 855px;
}

.module-five {
  height: 715px;
}
.content-five > .serial {
  margin-top: 90px;
}
.content-five > .title {
  font-size: 35px;
  letter-spacing: 20px;
  margin-top: 20px;
}
.content-five > .desc {
  font-size: 20px;
  margin-top: -20px;
}
.content-five > .item {
  float: left;
  border-radius: 30px;
  height: 280px;
  width: 260px;
  background: linear-gradient(#19d0ff, #6295ff);
  margin-top: 50px;
  margin-left: 20px;
  margin-right: 20px;
}
.content-five > .item > img {
  display: block;
  margin: 90px auto 30px auto;
}
.content-five > .item > span {
  color: #fff;
  font-size: 20px;
  text-shadow: 0 0 15px rgba(24, 198, 254, 0.67);
}

.module-six {
  height: 1075px;
}
.content-six > .serial {
  margin-top: 60px;
}
.content-six > .title {
  font-size: 35px;
  letter-spacing: 20px;
  margin-top: 20px;
  margin-left: 20px;
}
.content-six > .desc {
  font-size: 20px;
  margin-top: -20px;
}
.content-six > .item {
  float: left;
  width: 300px;
  margin-top: 80px;
}
.content-six > .item > img {
  display: block;
  margin: 0 auto;
}
.content-six > .item > span {
  font-size: 25px;
  font-weight: bold;
}
.content-six > .item > p {
  font-size: 15px;
  width: 200px;
  margin: 10px auto 0 auto;
}

.module-seven {
  height: 1285px;
}
.content-seven > img {
  display: block;
  margin: 50px auto 0 auto;
}
.content-seven > p {
  color: #afafaf;
  font-size: 50px;
  letter-spacing: 10px;
}
.content-seven > span {
  display: block;
  font-size: 20px;
  margin-top: 10px;
}
.content-seven > button {
  display: block;
  margin: 50px auto 0 auto;
  font-size: 23px;
  color: #fff;
  letter-spacing: 3px;
  text-shadow: 0 0 15px rgba(24, 198, 254, 0.67);
  border: none;
  height: 70px;
  width: 400px;
  background: linear-gradient(#19d0ff, #6493ff);
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 108, 255, 0.43);
}

.contact-bg {
  height: 1712px;
  width: 100%;
  background: url(../image/officeShow.jpg) no-repeat center top;
  /* background-size: 100% 856px; */
}

.buttom-info{
  text-align: center;
  width: 100%;
  position: fixed;
  z-index: 302;
  bottom: 0;
  left: 0;
  height: 39px;
  padding-top: 1px;
  overflow: hidden;
  zoom: 1;
  margin: 0;
  line-height: 39px;
  background: #fff;
}

.buttom-info-href{
  color: #bbb;
}

.buttom-info-href:hover{
  color: #111;
}