body {
  margin: 0;
  font-family: NeuzeitGro, sans-serif;
  font-size: 14px;
  letter-spacing: 0.32px;
}
::-webkit-scrollbar-track-piece {
  background-color: #f8f8f8;
}
::-webkit-scrollbar {
  width: 9px;
  height: 9px;
}
::-webkit-scrollbar-thumb {
  background-color: #dddddd;
  background-clip: padding-box;
  min-height: 28px;
}
::-webkit-scrollbar-thumb:hover {
  background-color: #bbb;
}
ul,
li {
  list-style: none;
  margin: 0;
  padding: 0;
}
h1,
h2,
h2,
h4 {
  font-family: Calibri;
  font-weight: normal;
}
h2 {
  margin: 40px 0 20px;
  font-family: Calibri-Bold;
  font-size: 36px;
  color: #9e7947;
}
h3 {
  margin: 40px 0 20px;
  font-family: Calibri-Bold;
  font-size: 30px;
  color: #da3823;
}
h4 {
  font-size: 24px;
}
p {
  margin: 0;
  line-height: 35px;
  font-size: 20px;
  text-align: left;
  letter-spacing: -1px;
  color: #404040;
}
img {
  max-width: 100%;
}
a:link {
  text-decoration: none;
}
.m-t-30 {
  margin-top: 30px !important;
}
.m-t-20 {
  margin-top: 20px !important;
}
.navbar-top {
  position: relative;
  left: 0;
  position: fixed;
  top: 0;
  z-index: 1001;
  width: 100%;
  text-align: center;
  background: #fff;
}
.navbar-top:before {
  content: "";
  display: block;
  height: 10px;
  width: 80%;
  margin: 0 auto;
  background: #fad05a;
}
.navbar-top .nav-shadow {
  position: absolute;
  right: 0;
  top: 100%;
}
.navbar-top .nav {
  float: right;
  margin-bottom: 0;
  font-size: 18px;
}
.navbar-top .nav li {
  display: inline-block;
  margin: 0 5px;
  padding: 20px 0 30px;
  position: relative;
}
.navbar-top .nav li:hover .sub-menu {
  display: block;
}
.navbar-top .nav > li > a {
  padding: 8px 15px;
  color: #525252;
}
.navbar-top .nav > li > a.active {
  color: #fff;
  font-style: italic;
  background: #fad05a;
}
.navbar-top .sub-menu {
  position: absolute;
  left: 50%;
  top: 90px;
  transform: translateX(-50%);
  z-index: 999;
  display: none;
  padding: 10px 0;
  box-shadow: 1px 0px 10px 0px rgba(34, 23, 20, 0.16);
  background: #fff;
}
.navbar-top .sub-menu:before {
  content: "";
  position: absolute;
  top: -23px;
  left: 50%;
  transform: translateX(-50%);
  display: block;
  width: 30px;
  height: 30px;
  background: url(../images/triangle-icon.png) no-repeat center center;
}
.navbar-top .sub-menu > a {
  padding: 5px 30px;
  display: block;
  text-align: left;
  white-space: nowrap;
  color: #525252;
}
.navbar-top .sub-menu > a.active {
  color: #fad05a;
}
#logo {
  float: left;
  margin-top: 15px;
  margin-left: 50px;
}
#logo img {
  width: 259px;
}
.main-body {
  margin-top: 100px;
  margin-bottom: 80px;
}
@media (max-width: 812px) {
  .main-body {
    margin-top: 150px;
  }
}
.header {
  position: relative;
  text-align: center;
}
.header-bg {
  opacity: 0.4;
}
.header-logo {
  position: absolute;
  top: 40%;
  bottom: 0;
  right: 0;
  left: 0;
  transform: translateY(-50%);
}
.header-video {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.header-video video {
  width: 100%;
  height: auto;
  /* 自动调整高度以保持宽高比 */
}
@media (min-width: 1200px) {
  .header-video {
    width: 1200px;
  }
}
.row {
  margin-top: 50px;
}
.horizontal:after {
  content: "";
  display: block;
  width: 58px;
  height: 3px;
  margin-top: 15px;
  background: #da3823;
}
.option {
  display: inline-block;
  vertical-align: middle;
  margin-top: -20px;
  margin-left: 10px;
}
.option span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fcce60;
  display: inline-block;
}
@media (min-width: 992px) {
  .intro .intro-des {
    margin-left: 140px;
  }
}
.service {
  margin-top: 70px;
  color: #232323;
}
.intro-img {
  width: 100%;
  margin-top: -20px;
}
.bottom-bar {
  position: fixed;
  left: 20%;
  bottom: 0;
  width: 60%;
  height: 10px;
  background: #fcce60;
}
@media (min-width: 992px) {
  .who-we-are-info {
    margin-left: 100px;
  }
  .who-we-are-info:after {
    margin-top: 50px;
  }
}
@media (min-width: 992px) {
  .about-us {
    margin-top: 50px;
  }
}
@media (min-width: 992px) {
  .mission p,
  .mission h3 {
    margin-left: 100px;
  }
}
.mission-img {
  margin-top: 30px;
}
.product {
  text-align: center;
}
.product h3 {
  display: inline-block;
  margin: 0 auto 20px;
  text-align: center;
  color: #9e7947;
  border-bottom: solid #da3823 3px;
}
.product-list {
  text-align: left;
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
}
.product-list > li {
  padding: 10px;
}
.product-list > li .img-box {
  position: relative;
  padding-top: 100%;
}
.product-list > li img {
  position: absolute;
  top: 0;
  width: 100%;
  height: 100%;
}
.product-list > li h4:after {
  content: "";
  display: block;
  height: 3px;
  width: 36px;
  margin-top: 10px;
  background: #da3823;
}
.product-list > li img {
  border: solid 5px #fad05a;
}
.product-category li {
  overflow: hidden;
  font-size: 20px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.product-category li:before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 5px;
  vertical-align: middle;
  border-radius: 50%;
  background: #fad05a;
}
@media (min-width: 992px) {
  .development {
    margin-left: 200px;
  }
  .development .horizontal:after {
    position: relative;
    left: -200px;
    margin-top: -10px;
  }
}
.development-wrap h3 {
  color: inherit;
}
@media (min-width: 992px) {
  .development-images {
    margin-top: 100px;
  }
}
.development-images .row {
  margin: 10px 10px 10px 0;
}
.development-images .col-xs-6 {
  padding: 0 0 0 10px;
}
.development-images .col-xs-6:nth-of-type(3),
.development-images .col-xs-6:nth-of-type(4) {
  padding-top: 10px;
}
.development-images img {
  width: 100%;
}
.product-control {
  position: relative;
}
.product-control:after {
  content: "";
  display: block;
  width: 130px;
  height: 3px;
  margin-top: 15px;
  background: #a27f4f;
}
.product-control:before {
  content: "";
  position: absolute;
  top: -20px;
  bottom: 25px;
  left: -17px;
  display: block;
  width: 32px;
  background: #da3823;
  z-index: -1;
}
@media (min-width: 992px) {
  .product-control {
    margin-top: 150px;
    margin-left: 150px;
  }
}
.environment {
  background: #f8f8f8;
}
.environment-box {
  position: relative;
}
@media (min-width: 992px) {
  .environment-box {
    margin-left: 245px;
    margin-top: 60px;
  }
}
.environment-box:before {
  content: "";
  position: absolute;
  left: -40px;
  top: 10px;
  bottom: 10px;
  display: block;
  width: 4px;
  background: #da3823;
}
.environment + p {
  padding-top: 10px;
}
.environment img {
  display: block;
  margin-right: -15px;
  vertical-align: middle;
}
@media (min-width: 992px) {
  .environment img {
    float: right;
  }
}
.materials-box .serial {
  font-family: Calibri-Bold;
  font-size: 114px;
  color: #9e7947;
}
.materials-box .serial:after {
  content: "";
  display: block;
  height: 3px;
  width: 38px;
  margin-top: -10px;
  margin-left: 10px;
  background: #da3823;
}
.materials-box .serial-title {
  display: block;
  margin-top: 10px;
  margin-left: 10px;
  font-family: Calibri-Bold;
  font-size: 30px;
  color: #9e7947;
}
@media (min-width: 992px) {
  .materials-content {
    margin-top: 175px;
    padding-left: 50px;
  }
}
.materials-images {
  margin-top: 20px;
  background: #f8f8f8;
}
.technology-box .serial {
  font-family: Calibri-Bold;
  font-size: 114px;
  color: #fcce60;
}
@media (min-width: 992px) {
  .technology-content {
    margin-top: 55px;
    padding-left: 50px;
  }
}
.technology-content h3 {
  color: #9e7947;
}
.technology-content .technology-images {
  position: relative;
  margin-top: 20px;
}
@media (min-width: 1200px) {
  .technology-content .technology-images img + img {
    margin-left: 20px;
  }
}
.technology-content .technology-images img {
  margin-top: 10px;
}
.technology-content .technology-images:before {
  content: "";
  position: absolute;
  top: 20px;
  bottom: 10px;
  display: block;
  left: -19px;
  width: 19px;
  background: #da3823;
}
.responsibility h3 {
  color: #fcce60;
}
@media (min-width: 992px) {
  .responsibility .section {
    margin-left: 78px;
  }
}
#scrollToTop {
  width: 40px;
  height: 40px;
  line-height: 40px;
  background-color: #111111;
  color: #666666;
  position: fixed;
  bottom: 0;
  right: 0;
  text-align: center;
  display: none;
  cursor: pointer;
  transition: all 0.3s;
  z-index: 10000;
}
.factory {
  margin: 80px 0;
  position: relative;
  text-align: center;
  background: #f8f8f8;
}
.factory:after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  right: 0;
  height: 10px;
  width: 230px;
  margin-left: -115px;
  background: #da3823;
}
.factory img {
  display: block;
  margin: 0 auto;
}
.factory img + img {
  margin-top: 10px;
}
.concat-us {
  background: #fafafa url(../images/concat-us-bg.png) no-repeat;
  padding-top: 20px;
  padding-bottom: 100px;
  padding-left: 33%;
}
.concat-us h3 {
  color: #fad05a;
}
.concat-us-detail {
  position: relative;
}
.concat-us-detail:before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: -20px;
  width: 3px;
  background: #da3823;
}
@media (max-width: 812px) {
  #logo {
    float: none !important;
    margin-left: 0;
  }
  .nav {
    margin-top: 10px;
    float: none !important;
  }
  .navbar-top ul li a:link,
  .navbar-top ul li a:visited {
    padding: 2px;
    font-size: 10px;
  }
  #logo a {
    display: block;
  }
  .concat-us {
    padding-left: 0;
  }
}
@media (max-width: 320px) {
  .navbar-top ul li a:link,
  .navbar-top ul li a:visited {
    padding: 0;
  }
}