.main-page {
  height: 100vh;
}
.header {
  box-sizing: border-box;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 88px;
  z-index: 222;
  background: #ffffff;
}
.header .header-content {
  height: 100%;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}
.header .logo-box {
  width: 465px;
  height: 46px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
}
.header .logo-box .logo {
  width: 150px;
  height: 50px;
  background-image: url(../images/logo.png);
}
.header .logo-box .name {
  font-weight: bold;
  font-size: 18px;
  color: #333;
}
.header .nav-bar {
  position: relative;
  height: 37px;
}
.header .nav-bar .nav-active-tag {
  position: absolute;
  bottom: 0;
  width: 30px;
  height: 4px;
  background: #333;
  border-radius: 4px 4px 4px 4px;
}
.header .nav-bar ul.tab {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 70px;
}
.header .nav-bar ul.tab li {
  height: 28px;
  line-height: 21px;
  font-size: 16px;
  white-space: nowrap;
}
.header .nav-bar ul.tab li a {
  color: #333;
}
.slider-item {
  height: 100vh;
  overflow: auto;
}
.page {
  position: relative;
  width: 100%;
  z-index: 4;
}
.content {
  position: absolute;
  overflow: hidden;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 2;
  transition: transform 1s ease;
  backface-visibility: hidden;
}
.size-bg-box {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
}
.elem {
  position: absolute;
}
.page1 {
  height: 865px;
  color: #fff;
  z-index: 2;
  position: relative;
}
.page1 .bg1 {
  top: 88px;
  height: 777px;
  background-image: url(../images/page1-bg.jpg);
}
.page1 .page-content {
  position: relative;
  padding-top: 40vh;
}
.page1 .t1 {
  margin: 0 auto 10px;
  font-size: 82px;
  color: #fff;
}
.page1 .t4 {
  margin-top: 30px;
  color: #fff;
  font-size: 22px;
  line-height: 1.5;
}
.page2 {
  height: 880px;
  color: #000;
  z-index: 1;
  display: flex;
}
.page2 .content {
  width: 100%;
  position: relative;
  overflow: visible;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.page2 .page2-left {
  text-align: center;
}
.page2 .page2-left .title-1 {
  height: 47px;
  line-height: 47px;
  font-size: 30px;
  color: #333333;
}
.page2 .page2-left .title-2 {
  margin-top: 6px;
  height: 40px;
  font-size: 20px;
  color: #999999;
  line-height: 40px;
}
.page2 .page2-left .divider {
  margin-top: 50px;
  height: 24px;
  line-height: 24px;
  margin-bottom: 70px;
  color: #666666;
  font-size: 18px;
}
.page2 .page2-right {
  display: flex;
  align-items: center;
  position: relative;
}
.page2 .page2-right .item-wrap {
  flex: 1;
}
.page2 .page2-right .item-wrap:first-child {
  text-align: right;
}
.page2 .page2-right .item-wrap .item {
  width: 100%;
  padding: 46px;
  background-color: #f6f6f6;
  box-sizing: border-box;
  border: 2px solid #f6f6f6;
  transition: all 0.3s;
}
.page2 .page2-right .item-wrap .item + .item {
  margin-top: 40px;
}
.page2 .page2-right .item-wrap .item.br-top {
  border-radius: 50px 0 0 0;
}
.page2 .page2-right .item-wrap .item.br-right {
  border-radius: 0 50px 0 0;
}
.page2 .page2-right .item-wrap .item.br-bottom {
  border-radius: 0 0 50px 0;
}
.page2 .page2-right .item-wrap .item.br-left {
  border-radius: 0 0 0 50px;
}
.page2 .page2-right .item-wrap .item .item-t1 {
  font-weight: bold;
  font-size: 50px;
  color: #909090;
  margin-bottom: 25px;
}
.page2 .page2-right .item-wrap .item .item-t2 {
  font-size: 28px;
  margin-bottom: 20px;
}
.page2 .page2-right .item-wrap .item .item-t3 {
  font-size: 18px;
  line-height: 1.5;
}
.page2 .page2-right .item-wrap .item:hover {
  background-color: #fff;
  border-color: #34adf4;
}
.page2 .page2-right .item-wrap .item:hover .item-t1,
.page2 .page2-right .item-wrap .item:hover .item-t2 {
  color: #34adf4;
}
.page2 .page2-right .item-wrap.icon-city {
  margin: 0 40px;
  flex: 0 0 304px;
  height: 278px;
  background-image: url(../images/city.png);
}
.page5 {
  min-height: 720px;
  width: 100%;
  z-index: 1;
}
.page5 .bg5 {
  height: 720px;
  background-image: url(../images/page5-bg.png);
}
.page5 .content {
  position: relative;
  padding: 100px 0;
}
.page5 .content .page5-left {
  width: 360px;
}
.page5 .content .page5-left .page5-title {
  height: 40px;
  font-size: 36px;
  color: #333;
}
.page5 .content .page5-right {
  margin-top: 60px;
  display: flex;
  gap: 20px;
}
.page5 .content .page5-right .item {
  flex: 1;
  background-color: #fff;
  border-radius: 10px;
  overflow: hidden;
}
.page5 .content .page5-right .item .item-top {
  height: 270px;
  overflow: hidden;
}
.page5 .content .page5-right .item .item-top > div {
  width: 100%;
  height: 100%;
  transition: all 0.3s;
}
.page5 .content .page5-right .item .item-top .bg1 {
  background-image: url('../images/page5-item1.png');
}
.page5 .content .page5-right .item .item-top .bg2 {
  background-image: url('../images/page5-item2.png');
}
.page5 .content .page5-right .item .item-top .bg3 {
  background-image: url('../images/page5-item3.png');
}
.page5 .content .page5-right .item .item-top .bg4 {
  background-image: url('../images/page5-item4.png');
}
.page5 .content .page5-right .item .item-top:hover > div {
  transform: scale(1.1);
}
.page5 .content .page5-right .item .item-bottom {
  padding: 26px;
}
.page5 .content .page5-right .item .item-bottom .p1 {
  font-size: 24px;
}
.page5 .content .page5-right .item .item-bottom .p2 {
  margin-top: 10px;
  font-size: 18px;
  line-height: 1.4;
}
.page3 {
  height: 765px;
  width: 100%;
  z-index: 1;
}
.page3 .content {
  position: relative;
  overflow: hidden;
  width: 100%;
}
.page3 .content .page3-left {
  width: 50%;
  float: left;
  height: 765px;
  background-image: url(../images/page3-bg.png);
}
.page3 .content .page3-right {
  width: 50%;
  float: left;
}
.page3 .content .page3-right .page3-ab {
  padding: 15% 15%;
}
.page3 .content .page3-right .page3-ab .page3-title {
  height: 40px;
  font-size: 36px;
  color: #333333;
  line-height: 40px;
  text-align: left;
}
.page3 .content .page3-right .page3-ab .page3-subtitle {
  margin-top: 16px;
  height: 26px;
  line-height: 26px;
  font-size: 20px;
  color: #999999;
  text-align: left;
}
.page3 .content .page3-right .page3-ab .about-box {
  margin-top: 50px;
}
.page3 .content .page3-right .page3-ab .about-box .about {
  font-size: 16px;
  color: #333333;
  line-height: 30px;
}
.page4 {
  min-height: 880px;
  color: #000;
  z-index: 1;
}
.page4 .content {
  position: relative;
  padding-top: 100px;
  overflow: visible;
}
.page4 .content .page4-left {
  width: 360px;
}
.page4 .content .page4-left .page4-title {
  height: 40px;
  font-size: 36px;
  color: #333;
}
.page4 .content .page4-left .page4-subtitle {
  margin-top: 6px;
  height: 26px;
  font-size: 20px;
  color: #999;
  padding-left: 15%;
}
.page4 .content .page4-right .item-box {
  margin: 40px auto;
  width: 1140px;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
}
.page4 .content .page4-right .item-box .item {
  width: 380px;
  height: 285px;
}
.footer {
  position: relative;
  padding: 34px 0;
  background-color: #000000;
  color: #B9B9B9;
  z-index: 10;
}
.footer .footer-content {
  display: flex;
  align-items: center;
}
.footer a {
  color: #B9B9B9;
  margin-right: 20px;
}
.footer .footer-left {
  flex: 1;
  font-size: 14px;
}
.footer .footer-left > p:not(:last-child) {
  margin-bottom: 15px;
  line-height: 1.25;
}
.footer .footer-left img {
  display: inline-block;
  width: 20px;
  height: 22px;
  vertical-align: middle;
}
.footer .footer-right {
  flex-shrink: 0;
}
.footer .footer-right .phone-icon {
  float: left;
  margin-top: 4px;
  width: 37px;
  height: 37px;
}
.footer .footer-right > p {
  margin-left: 47px;
  white-space: nowrap;
}
.footer .footer-right .phone-number {
  margin-top: 4px;
  line-height: 26px;
  font-weight: bold;
  font-size: 20px;
  color: #fff;
}
@keyframes mouse-animate {
  0% {
    transform: translateY(-10px);
  }
  50% {
    transform: translateY(10px);
  }
  100% {
    transform: translateY(-10px);
  }
}