* {
  box-sizing: border-box;
}
/*@font-face {*/
/*  font-family: 'SourceHanSansCN-Heavy';*/
/*  src: url('../font/SourceHanSansCN/SourceHanSansCN-Heavy.otf');*/
/*}*/
/*@font-face {*/
/*  font-family: 'SourceHanSansCN-Light';*/
/*  src: url('../font/SourceHanSansCN/SourceHanSansCN-Light.otf');*/
/*}*/
/*@font-face {*/
/*  font-family: 'SourceHanSansCN-Medium';*/
/*  src: url('../font/SourceHanSansCN/SourceHanSansCN-Medium.otf');*/
/*}*/
/*@font-face {*/
/*  font-family: 'SourceHanSansCN-Regular';*/
/*  src: url('../font/SourceHanSansCN/SourceHanSansCN-Regular.otf');*/
/*}*/
/*@font-face {*/
/*  font-family: 'SourceHanSansCN-Bold';*/
/*  src: url('../font/SourceHanSansCN/SourceHanSansCN-Bold.otf');*/
/*}*/
html,
body {
  /*font-family: 'SourceHanSansCN-Regular';*/
}
aside ul li:nth-child(3) {
  position: relative;
}
aside ul li:nth-child(3) i.fa {
  font-size: 36px;
}
aside ul li:nth-child(3):hover span {
  display: block;
}
aside ul li:nth-child(3) span {
  position: absolute;
  top: 20%;
  right: 105%;
  width: 200%;
  display: none;
  padding: 10px;
  background: #e83410;
  color: white;
}
aside {
  position: fixed;
  right: 1%;
  top: 36%;
  z-index: 1000;
}
aside ul {
  background: #e83410;
}
aside ul li {
  padding: 14px;
  text-align: center;
}
aside ul li a {
  display: inline-block;
}
aside ul li a i.fa {
  font-size: 20px;
  color: white;
  background: #e83410;
}
aside ul li:first-child {
  border-bottom: 2px solid white;
}
aside ul li:first-child i.fa {
  font-size: 24px;
}
aside ul li:nth-child(2) {
  padding-top: 20px;
  position: relative;
}
aside ul li:nth-child(2):hover img,
aside ul li:nth-child(1):hover img
{
  display: block;
}
aside ul li:nth-child(2) img,
aside ul li:nth-child(1) img{
  position: absolute;
  top: 0;
  right: 105%;
  width: 200%;
  display: none;
}
aside ul li:nth-child(3) i.fa {
  font-size: 36px;
}
aside ul li:nth-child(4) {
  padding-bottom: 20px;
}
header {
  width: 100%;
  height: 44.27vw;
  overflow: hidden;
  position: relative;
  background: url(../images/banner.jpg);
  background-size: cover;
}
header.m_header_box {
  display: none;
}
header .m_header {
  width: 100%;
  height: 100%;
  background: url(../images/m_banner.jpg);
  background-size: cover;
}
header .video {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  top: 50%;
}
header .video .close_video {
  display: inline-block;
  color: #e83410;
  font-size: 28px;
  right: 0%;
  top: -1%;
  z-index: 2;
  position: absolute;
  cursor: pointer;
}
header .logo {
  position: absolute;
  left: 4%;
  top: 5%;
}
header .next {
  position: absolute;
  bottom: 6%;
  left: 50%;
  transform: translateX(-50%);
  cursor: pointer;
  transition: 1s;
}
header .next:hover {
  animation: next 2s;
}
@keyframes next {
  from {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(80%);
  }
  to {
    transform: translateX(-50%) translateY(0);
  }
}
.con {
  width: 1340px;
  margin: 0 auto;
}
nav {
  background: #e83410;
  height: 70px;
  line-height: 68px;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 999;
}
nav .con {
  display: flex;
  justify-content: space-evenly;
}
nav .con a {
  display: block;
  color: #fdefe0;
  font-size: 18px;
  text-decoration: none;
}
nav .con a.active {
  border-bottom: 2px solid #fdefe0;
}
main {
  width: 100%;
  background: #fdefe0;
}
main .con {
  text-align: center;
}
main .con .title {
  width: 40%;
  margin-left: 20%;
  margin: 0 auto;
  padding: 6% 0;
}
main .con .title img {
  width: 100%;
}
main .con .box {
  width: 100%;
  background: white;
  padding: 40px;
}
main .con .box .container {
  width: 100%;
}
main .con .box .container img {
  width: 100%;
}
main .con .box .container .bottom {
  display: flex;
  justify-content: space-between;
}
main .con .box .container .bottom img {
  width: 48%;
  text-align: center;
  margin-top: 20px;
}
main .con .box .container .part1_right img {
  max-height: 580px;
  overflow: hidden;
}
main .con .box .part2,
main .con .box .part3 {
  margin-top: 70px;
}
main .con .part4 .video {
  width: 84%;
  margin: 0 auto;
  background: no-repeat;
  background-image: url(../images/border.png);
  background-size: 100% 100%;
  text-align: center;
  height: 640px;
  display: flex;
  justify-content: center;
  align-items: center;
}
main .con .part4 video {
  width: 80%;
}
main .con .pics {
  margin-top: 80px;
}
main .con .pics.container {
  width: 100%;
}
main .con .pics.container img {
  padding: 2px;
}
main .part5 {
  width: 100%;
  margin: 0 auto;
  background: url(../images/about_bg.png);
  background-size: 100% 100%;
  padding-bottom: 5%;
}
main .part5 .box {
  background: transparent;
  width: 70%;
  margin: 0 auto;
  padding-top: 10%;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
main .part5 .box .orange {
  position: absolute;
  right: -10px;
  top: 7%;
}
main .part5 .box video {
  width: 80%;
  margin: 20px;
  margin-left: 10%;
}
main .part5 .box .title {
  padding: 60px 0;
}
main .part5 .box .title img {
  width: 100%;
}
main .part5 .box .content {
  width: 60%;
  margin: 0 auto;
  padding-bottom: 100px;
}
main .part5 .box p {
  color: #222222;
  font-size: 18px;
  margin-bottom: 20px;
  text-align: center;
}
footer .copyright {
  text-align: center;
  margin-top: 3%;
  font-size: 16px;
}
footer .copyright a {
  color: #222;
  text-decoration: none;
}
.m_copyright {
  display: none;
}
footer ul li .text p {
  font-size: 16px;
}
.footer_nav {
  display: none;
  justify-content: space-evenly;
  background: #e83410;
  margin-top: 20px;
  position: fixed;
  bottom: 0;
  width: 100%;
  z-index: 1000;
  height: 60px;
}
.footer_nav li {
  display: flex;
  flex-direction: column;
  background: #e83410;
  color: white;
  padding: 20px 0 5px 0;
  justify-content: center;
  text-align: center;
  font-size: 16px;
}
.footer_nav li i {
  display: block;
  margin-bottom: 10px;
}
.footer_nav li a {
  color: white;
  text-decoration: none;
}
.footer_img_code {
  display: none;
  position: absolute;
  width: 300%;
  left: -101%;
  bottom: 175%;
}
footer {
  width: 100%;
  background: url(../images/footer.png);
  background-size: 100% 100%;
  background-clip: border-box;
  padding-bottom: 6%;
  position: relative;
}
footer .alink {
  width: 100%;
  position: absolute;
  bottom: 0;
  height: 80px;
  cursor: pointer;
  display: block;
  background: #e83410;
  text-align: center;
}
footer .alink img {
  height: 30%;
  margin-top: 1.5%;
}
footer .container {
  padding-top: 40px;
}
footer .footer_logo_div {
  text-align: center;
  top: 30px;
}
footer .footer_logo_div img {
  width: 100%;
}
footer .contact {
  margin-top: 100px;
}
footer ul li {
  border-bottom: 1px solid #e83410;
  padding: 10px 30px ;
  color: #e83410;
  display: flex;
  align-items: center;
}
footer ul li .text {
  display: flex;
  flex-direction: column;
  align-items: space-around;
}
footer ul li .text p {
  margin: 0;
}
footer ul li .icon i {
  font-size: 30px;
  margin-right: 30px;
}
footer ul li:nth-child(2) .icon i {
  margin-right: 24px;
}
footer .code {
  text-align: right;
  display: flex;
  justify-content: space-around;
}
footer .code img {
  width: 40%;
  height: 50%;
}
@media (max-width: 1920px) {
  .code img {
    height: 50%;
  }
}
@media (max-width: 1024px) {
  header.pc_header_box {
    display: none;
  }
  header.m_header_box {
    display: block;
  }
  .con {
    width: 100%;
  }
  footer {
    padding-bottom: 8%;
  }
  footer p {
    font-size: 12px;
  }
  footer .footer_logo_div {
    top: 10px;
  }
  footer .contact {
    margin-top: 20px;
  }
  footer .container {
    width: 100%;
  }
  .col-sm-offset-3.code {
    margin-left: 0;
  }
  footer .alink img {
    height: 40%;
    margin-top: 2%;
  }
  main .con .pics.container img {
    width: 50%;
  }
  main .con .title {
    width: 60%;
    margin-left: 20%;
    margin: 0 auto;
    padding: 10% 0;
  }
  main .part5 .box {
    padding-top: 20%;
  }
}
@media (max-width: 1680px) {
  footer .alink {
    height: 70px;
  }
}
@media (max-width: 1366px) {
  footer .alink {
    height: 60px;
  }
}
@media (max-width: 1023px) {
  .col-sm-offset-3.code {
    margin-left: 25%;
  }
}
@media (max-width: 768px) {
  footer ul li .text p {
    font-size: 12px;
  }
  .footer_nav li i {
    font-size: 16px;
  }
  .footer_nav li:nth-child(3) i {
    font-size: 20px;
  }
  aside {
    display: none;
  }
  .footer_nav {
    display: flex;
    margin-bottom: 0;
    padding: 10px 0 20px 0;
  }
  footer .alink {
    display: none;
  }
  .con {
    width: 100%;
  }
  #part2 .part1_right {
    margin-bottom: 20px;
  }
  main .con .box .container .bottom {
    margin-bottom: 20px;
  }
  main .con .part4 .video {
    height: 420px;
  }
  main .part5 {
    width: 100%;
    margin: 0 auto;
    background: url(../images/about_bg.png) no-repeat;
    background-size: 150% 103%;
    background-position: top center;
  }
  .orange img {
    width: 200px;
  }
  main .part5 .box .orange {
    position: absolute;
    right: -18%;
    top: 7%;
  }
  main .part5 .box .title {
    padding: 0;
    width: 32%;
  }
  main .part5 .box .content {
    width: 90%;
    padding: 5% 0 0 0;
  }
  main .con .box .part2 {
    margin-top: 20px;
  }
  main .con .box .part3 {
    margin-top: 0;
  }
  footer {
    background: #fdefe0;
    border: 20px solid #e83410;
    border-bottom: 0;
    padding-bottom: 0;
    margin-bottom: 50px;
  }
  footer .container {
    width: 100%;
  }
  footer .code {
    margin-top: 10px;
  }
  footer .alink {
    height: 40px;
  }
  footer .alink img {
    height: 50%;
    margin-top: 1.5%;
  }
  footer .copyright {
    font-size: 12px;
  }
  .m_copyright {
    display: block;
  }
  .pc_copyright {
    display: none;
  }
}
@media (max-width: 767px) {
  .col-sm-offset-3.code {
    margin-left: 18%;
  }
}
@media (max-width: 414px) {
  nav {
    overflow-x: scroll;
    height: 40px;
    line-height: 38px;
    overflow-y: hidden;
  }
  nav .con a {
    font-size: 12px;
    display: inline-block;
    margin-right: 10px;
  }
  nav .con {
    display: block;
    white-space: nowrap;
    padding: 0 10px;
  }
  main .con .box {
    padding: 20px;
  }
  main .con .box .container {
    padding: 0;
  }
  main .con .box .part2 {
    margin-top: 20px;
  }
  #part3 {
    margin-top: 0;
  }
  main .con .part4 .video {
    height: 200px;
  }
  main .con .pics {
    margin-top: 30px;
  }
  main .part5 .box p {
    font-size: 12px;
  }
  main .part5 {
    background-image: none;
  }
  main .part5 .box {
    background: transparent;
    width: 90%;
    margin: 0 auto;
    padding-top: 20%;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
  }
  main .part5 .box .orange {
    right: -5%;
    top: 2%;
  }
  main .part5 .box .orange img {
    width: 120px;
  }
  main .part5 .box video {
    width: 100%;
    margin: 0;
  }
  footer {
    background: #fdefe0;
    border: 10px solid #e83410;
  }
  footer .container {
    padding-top: 10px;
  }
  footer .alink {
    height: 20px;
  }
  aside ul li {
    padding: 4px;
  }
  aside ul li a i.fa {
    font-size: 18px;
  }
  aside ul li:first-child {
    border-bottom: 2px solid white;
  }
  aside ul li:first-child i.fa {
    font-size: 20px;
  }
  aside ul li:nth-child(2) {
    padding-top: 10px;
  }
  aside ul li:nth-child(3) i.fa {
    font-size: 28px;
  }
  aside ul li:nth-child(4) {
    padding-bottom: 10px;
  }
}