* {
  margin: 0;
  padding: 0;
  border: 0;
  font-family: "Microsoft YaHei";
}
body {
  font-size: 14px;
}
a {
  text-decoration: none;
}
ul {
  list-style: none;
}
.h2 {
  font-size: 36px;
  line-height: 36px;
  letter-spacing: 3px;
  margin-bottom: 35px;
}
.h3 {
  font-size: 34px;
  text-align: center;
  line-height: 34px;
  margin-bottom: 25px;
  letter-spacing: 3px;
}
.h4 {
  font-size: 30px;
  text-align: center;
  line-height: 30px;
  margin-bottom: 25px;
  letter-spacing: 3px;
}
.p0 {
  font-size: 20px;
  letter-spacing: 2px;
}
.p1 {
  text-align: center;
  font-size: 18px;
  letter-spacing: 2px;
}
.p2 {
  text-align: center;
  font-size: 14px;
  letter-spacing: 1px;
}
.p3 {
  text-align: center;
  font-size: 12px;
  letter-spacing: 1px;
}
.main-content {
  width: 1200px;
  margin: 0 auto;
}
.main-content::after {
  content: "";
  display: table;
  clear: both;
}
.fl {
  float: left;
}
.fr {
  float: right;
}
.ta-left {
  text-align: left !important;
}
.ta-right {
  text-align: right !important;
}
#top-nav {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: transparent;
  background-size: 100% 100%;
  z-index: 20;
  transition: all 2s ease-in-out;
}
#top-nav:hover,
#top-nav.frozen {
  background-image: url("../images/index/20210128/bg_nav.png");
}
#top-nav .main-content {
  height: 60px;
  line-height: 60px;
  font-size: 16px;
  z-index: 20;
}
#top-nav .logo {
  background: url("../images/logo.png") no-repeat;
  width: 130px;
  height: 39px;
  margin: 10px auto;
}
#top-nav .logo-svg img {
  width: 130px;
  height: auto;
  display: inline;
  padding-top: 10px;
}
#top-nav .nav-list .nav-item {
  position: relative;
  min-width: 65px;
  height: 60px;
  margin-left: 30px;
  float: left;
  text-align: center;
  z-index: 2;
}
#top-nav .nav-list .nav-item .top-link {
  color: #fff;
}
#top-nav .nav-list .nav-item.active:after {
  background: #06f;
}
#top-nav .nav-list .nav-item:hover:after {
  background: #06f;
}
#top-nav .nav-list .nav-item:after {
  content: '';
  display: inline-block;
  width: 68px;
  height: 4px;
  background: transparent;
  position: absolute;
  top: 56px;
  left: 0;
  z-index: 1;
}
#top-nav .nav-list .nav-item.nav-about {
  padding-right: 100px;
}
#top-nav .nav-list .nav-item.sub-nav-content {
  padding: 0 100px;
}
#top-nav .nav-list .nav-item.sub-nav-content:hover:after {
  left: 100px;
}
#top-nav .nav-list .nav-item.sub-nav-content:hover .sub-nav-hover {
  opacity: 1;
}
#top-nav .nav-list .nav-item.sub-nav-content:hover .sub-nav-hover .sub-nav {
  display: block;
}
#top-nav .nav-list .nav-item.sub-nav-content.active:after {
  left: 100px;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover {
  width: 100%;
  height: auto;
  position: fixed;
  top: 59px;
  left: 0;
  background: url("../images/index/20210128/bg_nav.png") 100% 100%;
  opacity: 0;
  transition: all 0.2s ease-in-out;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover:hover {
  display: block;
  opacity: 1;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover:hover .sub-nav {
  display: block;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav {
  display: none;
  width: 1200px;
  margin: 0 auto;
  padding-top: 36px;
  padding-bottom: 40px;
  text-align: left;
  font-size: 0;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav .sub-nav-item {
  display: inline-block;
  text-align: left;
  vertical-align: top;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav .sub-nav-item:nth-of-type(1) {
  width: 195px;
  margin-right: 169px;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav .sub-nav-item:nth-of-type(2) {
  width: 150px;
  margin-right: 183px;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav .sub-nav-item:nth-of-type(3) {
  width: 152px;
  margin-right: 183px;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav .sub-nav-item:nth-of-type(4) {
  width: 167px;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav .sub-nav-item .nav-block {
  margin-bottom: 45px;
  position: relative;
  color: #fff;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav .sub-nav-item .nav-block:before {
  content: '';
  display: inline-block;
  position: absolute;
  top: 38px;
  left: 0;
  width: 187px;
  height: 1px;
  background: #fff;
  opacity: 0.2;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav .sub-nav-item .nav-block .area-name {
  margin-bottom: 30px;
  font-size: 16px;
  font-weight: bold;
  line-height: 30px;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav .sub-nav-item .nav-block .link {
  display: block;
  height: 15px;
  margin-bottom: 15px;
  line-height: 15px;
  font-size: 14px;
  font-weight: 400;
  line-height: 1;
  color: #fff;
  opacity: 0.7;
}
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav .sub-nav-item .nav-block .link.active,
#top-nav .nav-list .nav-item.sub-nav-content .sub-nav-hover .sub-nav .sub-nav-item .nav-block .link:hover {
  font-weight: 400;
  color: #06f;
  opacity: 1;
  font-size: 15px;
}
#footer {
  padding: 30px 0;
  color: #fff;
  background-color: #1d1d1d;
}
#footer,
#footer a {
  color: #8f8f8f;
}
#footer p {
  text-align: center;
}
#footer .space {
  margin: 0 30px;
  display: inline-block;
}
#footer a:hover {
  text-decoration: underline;
}
.contact-dialog {
  display: none;
}
.contact-dialog .full-screen-shadow {
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  background: rgba(0,0,0,0.4);
}
.contact-dialog .contact-form {
  width: 905px;
  height: 566px;
  position: fixed;
  bottom: 130px;
  left: 50%;
  margin-left: -452.5px;
  padding-top: 60px;
  padding-bottom: 60px;
  background-color: #fff;
  box-shadow: 3px 4px 5px 0 rgba(76,76,76,0.42);
  border-radius: 12px;
  z-index: 101;
  box-sizing: border-box;
}
.contact-dialog .contact-form .icon-close {
  position: absolute;
  top: -48px;
  right: 0;
  width: 30px;
  cursor: pointer;
}
.contact-dialog .contact-form .contact-bg {
  width: 370px;
  display: inline-block;
  margin-right: 85px;
}
.contact-dialog .contact-form .contact-form-content {
  width: 380px;
  display: inline-block;
  vertical-align: top;
}
.contact-dialog .contact-form .contact-form-content .contact-input {
  margin-bottom: 20px;
}
.contact-dialog .contact-form .contact-form-content .contact-input p {
  margin-bottom: 5px;
  font-size: 13px;
  font-weight: normal;
  letter-spacing: 1px;
  color: #2a2a2a;
}
.contact-dialog .contact-form .contact-form-content .contact-input p span {
  margin-right: 5px;
  color: #f00;
}
.contact-dialog .contact-form .contact-form-content .contact-input input,
.contact-dialog .contact-form .contact-form-content .contact-input textarea {
  width: 380px;
  height: 42px;
  padding-left: 25px;
  line-height: 42px;
  background-color: #fff;
  border-radius: 4px;
  border: solid 1px #ccc;
  outline: none;
  box-sizing: border-box;
}
.contact-dialog .contact-form .contact-form-content .contact-input textarea {
  max-width: 100%;
  height: 90px;
  max-height: 90px;
}
.contact-dialog .contact-form .contact-form-content .btn-contact-submit {
  width: 380px;
  height: 44px;
  background-color: #1966ff;
  border-radius: 4px;
  font-size: 18px;
  font-weight: normal;
  font-stretch: normal;
  letter-spacing: 1px;
  color: #fff;
}
.bg-blue {
  background: #f5f9fe !important;
}
.normal-btn {
  display: inline-block;
  width: 140px;
  height: 36px;
  line-height: 36px;
  text-align: center;
  background-color: #fff;
  border-radius: 18px;
  border: solid 1px #81899d;
  font-size: 13px;
  font-weight: normal;
  font-stretch: normal;
  letter-spacing: 1px;
  color: #434b5f;
}
a.normal-btn {
  text-decoration: none;
}
#contact {
  position: relative;
  background: url("../images/index/20210128/bg_contact.png") no-repeat;
  background-size: 100% 100%;
  z-index: 1;
}
#contact:before {
  content: '';
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background: #031637;
  z-index: -1;
  opacity: 0.9;
}
#contact .title-box {
  color: #fff;
}
#contact .contact-content {
  max-width: 1920px;
  padding-bottom: 100px;
  margin: 0 auto;
  z-index: 2;
}
#contact .contact-content .title {
  color: #fff;
  padding-top: 110px;
  padding-bottom: 70px;
}
#contact .contact-content .contact-info {
  width: 1180px;
  margin: 0 auto;
  overflow: hidden;
}
#contact .contact-content .contact-info .contact-item {
  display: inline-block;
  position: relative;
  padding-top: 10px;
  float: left;
  text-align: center;
  overflow: hidden;
}
#contact .contact-content .contact-info .contact-item:hover .around-icon {
  animation: around 2s infinite linear;
}
#contact .contact-content .contact-info .contact-item:nth-of-type(1) {
  margin-left: 0;
}
#contact .contact-content .contact-info .contact-item:nth-of-type(2) {
  margin-left: 305px;
}
#contact .contact-content .contact-info .contact-item:nth-of-type(2) .around-icon {
  top: 1px;
  left: 138px;
}
#contact .contact-content .contact-info .contact-item:nth-of-type(3) {
  float: right;
}
#contact .contact-content .contact-info .contact-item:nth-of-type(3) .around-icon {
  top: 14px;
  left: 39px;
}
#contact .contact-content .contact-info .contact-item .contact-item-icon {
  width: 70px;
  height: 70px;
  vertical-align: middle;
}
#contact .contact-content .contact-info .contact-item .around-icon {
  position: absolute;
  top: 4px;
  left: 10px;
}
#contact .contact-content .contact-info .contact-item .contact-item-info {
  vertical-align: middle;
}
#contact .contact-content .contact-info .contact-item .contact-item-info .contact-item-info-title {
  padding-top: 15px;
  padding-bottom: 10px;
  font-size: 20px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 30px;
  letter-spacing: 1px;
  color: #fff;
}
#contact .contact-content .contact-info .contact-item .contact-item-info .contact-item-info-text {
  font-size: 14px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 22px;
  letter-spacing: 1px;
  color: #fff;
  opacity: 0.93;
}
#contact .contact-content .btn-serve {
  display: inherit;
  width: 200px;
  height: 45px;
  line-height: 45px;
  margin: 40px auto 0;
  background-color: #05f;
  border-radius: 20px;
  color: #fff;
  border-color: #05f;
}
#contact .contact-content .btn-serve .btn-icon {
  width: 30px;
  height: 30px;
  margin-right: 10px;
  vertical-align: middle;
}
#contact .contact-content .btn-serve .btn-text {
  vertical-align: middle;
  font-size: 16px;
  font-weight: normal;
  font-stretch: normal;
  line-height: 34px;
  letter-spacing: 1px;
  color: #fff;
}
.title {
  font-size: 36px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 24px;
  letter-spacing: 2px;
  color: #101010;
  text-align: center;
}
.title.border-bottom {
  position: relative;
  line-height: 40px;
}
.title.border-bottom:after {
  content: '';
  display: block;
  position: absolute;
  bottom: -20px;
  left: 50%;
  margin-left: -18px;
  width: 36px;
  height: 5px;
  background: #1f71ff;
}
.btn-swiper-prev,
.btn-swiper-next {
  width: 92px;
  height: 92px;
  position: absolute;
  top: 152px;
  cursor: pointer;
  outline: none;
  background: url("../images/icon_arrow_right.png");
  z-index: 10;
}
.btn-swiper-prev {
  left: -8px;
  transform: rotateY(180deg);
}
.btn-swiper-next {
  right: -8px;
}
.horizontal-text-content {
  width: 1180px;
  margin: 0 auto;
  padding-left: 42px;
  padding-right: 42px;
  box-sizing: border-box;
  border-bottom: 1px solid #e0e4ed;
}
.horizontal-text-content.three .horizontal-text-item {
  margin: 0 114px;
}
.horizontal-text-content.four .horizontal-text-item {
  margin: 0 40px;
}
.horizontal-text-content .horizontal-text-item {
  display: inline-block;
  width: 210px;
  text-align: center;
  margin: 0 120px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}
.horizontal-text-content .horizontal-text-item.active {
  border-bottom-color: #1966ff;
}
.horizontal-text-content .horizontal-text-item:first-child {
  margin-left: 0;
}
.horizontal-text-content .horizontal-text-item:last-child {
  margin-right: 0;
}
.horizontal-text-content .horizontal-text-item .horizontal-text-title {
  margin-bottom: 18px;
  font-size: 20px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 24px;
  letter-spacing: 1px;
  color: #101010;
}
.horizontal-text-content .horizontal-text-item .horizontal-text-intro {
  margin-bottom: 40px;
  font-size: 12px;
  font-weight: normal;
  font-stretch: normal;
  letter-spacing: 1px;
  color: #6f727a;
}
#video-wrap {
  position: relative;
  width: 100%;
  margin: 0 auto;
  background: #ecf4ff;
}
#video-wrap .title {
  padding-top: 120px;
  padding-bottom: 65px;
}
#video-wrap .scroll-bar {
  position: relative;
  width: 1180px;
  margin: 0 auto;
  overflow: hidden;
  border-bottom: 1px solid #e0e4ed;
  padding-bottom: 30px;
}
#video-wrap .scroll-bar .icon-direction {
  position: absolute;
  top: 9px;
  cursor: pointer;
}
#video-wrap .scroll-bar .icon-direction.arrow-left {
  left: 0;
}
#video-wrap .scroll-bar .icon-direction.arrow-right {
  right: 0;
}
#video-wrap .scroll-bar .scroll-box {
  width: 100%;
}
#video-wrap .scroll-bar .scroll-box .scroll-menu {
  text-align: center;
}
#video-wrap .scroll-bar .scroll-box .scroll-item {
  display: inline-block;
  position: relative;
  padding-left: 40px;
  padding-right: 40px;
  font-size: 20px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 24px;
  letter-spacing: 1px;
  color: #101010;
  height: 42px;
  line-height: 42px;
  border-radius: 21px;
  cursor: pointer;
}
#video-wrap .scroll-bar .scroll-box .scroll-item.active {
  color: #1966ff;
}
#video-wrap .scroll-bar .scroll-box .scroll-item.active:before {
  content: '';
  display: block;
  position: absolute;
  bottom: -30px;
  left: 0;
  width: 100%;
  height: 2px;
  background: #1966ff;
}
#video-wrap .video-content {
  width: 1180px;
  margin: 80px auto 0;
  padding-bottom: 140px;
}
#video-wrap .video-content .video-item {
  display: inline-block;
  width: 490px;
  height: 800px;
  margin-right: 90px;
  margin-top: -50px;
  border-radius: 10px;
  vertical-align: top;
  background: #fff;
}
#video-wrap .video-content .video-item.middle-height {
  height: 835px;
}
#video-wrap .video-content .video-item .video-iframe {
  width: 100%;
  height: 100%;
}
#video-wrap .video-content .video-item .video-arrow {
  position: relative;
  top: -15px;
  width: 100%;
  text-align: center;
  z-index: 1;
  font-size: 0;
}
#video-wrap .video-content .video-item .video-arrow .carousel {
  display: inline-block;
  margin-right: 15px;
  width: 16px;
  height: 14px;
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  transition: all 0.3s ease-in-out;
}
#video-wrap .video-content .video-item .video-arrow .carousel.active {
  width: 28px;
  background: #717789;
}
#video-wrap .video-content .video-info {
  display: inline-block;
}
#video-wrap .video-content .video-info .video-title {
  margin: 5px auto 50px;
  padding-left: 90px;
  font-size: 26px;
  font-weight: bold;
  font-stretch: normal;
  line-height: 24px;
  letter-spacing: 1px;
  color: #101010;
}
#video-wrap .video-content .video-info .video-info-item {
  position: relative;
  margin-bottom: 20px;
}
#video-wrap .video-content .video-info .video-info-item.active .item-icon {
  background: #1966ff;
}
#video-wrap .video-content .video-info .video-info-item.active .info-text {
  box-shadow: 0 6px 24px 0 rgba(25,102,255,0.2);
}
#video-wrap .video-content .video-info .video-info-item .item-icon {
  display: inline-block;
  position: absolute;
  top: 10px;
  width: 60px;
  height: 60px;
  background: #fff;
  border-radius: 50%;
  text-align: center;
  vertical-align: middle;
}
#video-wrap .video-content .video-info .video-info-item .item-icon img {
  position: relative;
}
#video-wrap .video-content .video-info .video-info-item .info-text {
  position: relative;
  display: inline-block;
  width: 500px;
  margin-left: 95px;
  padding-top: 28px;
  padding-left: 30px;
  padding-right: 30px;
  padding-bottom: 28px;
  background: #fff;
  box-sizing: border-box;
}
#video-wrap .video-content .video-info .video-info-item .info-text.large-height {
  min-height: 232px;
}
#video-wrap .video-content .video-info .video-info-item .info-text:before {
  content: '';
  display: inline-block;
  position: absolute;
  top: 30px;
  left: -19px;
  float: left;
  width: 0;
  height: 0;
  border-width: 10px;
  border-style: solid;
  border-color: transparent #fff transparent transparent;
}
#video-wrap .video-content .video-info .video-info-item .info-text strong {
  font-size: 16px;
  letter-spacing: 1px;
  color: #101010;
}
#video-wrap .video-content .video-info .video-info-item .info-text span {
  min-height: 44px;
  font-size: 15px;
  color: #666;
  line-height: 24px;
}
#video-wrap .video-content .video-info .video-info-item .info-text .info-detail {
  width: 100%;
  padding-top: 20px;
  background: #fff;
}
#video-wrap .video-content .video-info .video-info-item .info-text .info-detail li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 36px;
  letter-spacing: 1px;
  color: #666;
}
#video-wrap .video-content .video-info .video-info-item .info-text .info-detail li:before {
  content: '';
  display: block;
  position: absolute;
  top: 14px;
  left: 0;
  width: 10px;
  height: 10px;
  background-color: #1966ff;
  border-radius: 50%;
}
.width-24 {
  width: 24px;
  top: 12px;
}
.width-28 {
  width: 28px;
  top: 16px;
}
.width-29 {
  width: 29px;
  top: 15px;
}
.width-30 {
  width: 30px;
  top: 12px;
}
.width-36 {
  width: 36px;
  top: 16px;
}
.cover-tool {
  position: relative;
}
.cover-tool:before,
.cover-tool:after {
  content: '';
  display: block;
  width: 100%;
  height: 50px;
  position: absolute;
  left: 0;
  background: #ecf4ff;
}
.cover-tool:before {
  top: 0;
}
.cover-tool:after {
  bottom: -11px;
}
.title-box {
  margin: 0 auto;
  padding: 102px 0 80px;
  text-align: center;
  color: #111;
}
.title-box .headline {
  font-size: 32px;
  font-weight: 300;
  line-height: 60px;
}
.title-box .text {
  font-size: 18px;
  font-weight: 300;
  color: #666;
}
.title-box .color-bar {
  display: inline-block;
  width: 40px;
  height: 4px;
  background: #06f;
}
.normal-text {
  width: 880px;
  margin: 0 auto;
  font-size: 18px;
  font-weight: 300;
  color: #111;
  line-height: 40px;
}
.normal-text.center {
  text-align: center;
}
.normal-text.right {
  text-align: right;
}
.top-banner {
  width: 100%;
  overflow: hidden;
}
.top-banner .banner-content {
  margin: 0 auto;
  text-align: center;
}
.only-text-title {
  width: 100%;
  margin: 103px auto 60px;
  line-height: 60px;
  font-size: 32px;
  font-weight: 300;
  color: #111;
  text-align: center;
}
.example-box {
  width: 1200px;
  margin: 0 auto;
}
.icon-go-top {
  position: fixed;
  bottom: -300px;
  right: 30px;
  cursor: pointer;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.3s ease-in-out;
}
.icon-go-top.active {
  display: block;
  bottom: 30px;
  opacity: 1;
}
@-moz-keyframes around {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(-360deg);
  }
}
@-webkit-keyframes around {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(-360deg);
  }
}
@-o-keyframes around {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(-360deg);
  }
}
@keyframes around {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(-360deg);
  }
}
@-moz-keyframes around_2 {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@-webkit-keyframes around_2 {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@-o-keyframes around_2 {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@keyframes around_2 {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
@-moz-keyframes jump {
  from {
    top: 0px;
  }
  50% {
    top: -20px;
  }
  to {
    top: 0;
  }
}
@-webkit-keyframes jump {
  from {
    top: 0px;
  }
  50% {
    top: -20px;
  }
  to {
    top: 0;
  }
}
@-o-keyframes jump {
  from {
    top: 0px;
  }
  50% {
    top: -20px;
  }
  to {
    top: 0;
  }
}
@keyframes jump {
  from {
    top: 0px;
  }
  50% {
    top: -20px;
  }
  to {
    top: 0;
  }
}