/* 头部导航 */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0));
}
#header.white {
  background: #fff;
}
#header.white .logo img {
  filter: none;
}
#header.white .nav-menu a {
  color: #333;
}
#header.white .nav-icons a {
  color: #333;
}
#header.white .nav-icons .download a,
#header.white .nav-icons .tel a {
  color: var(--textColor);
}
#header.white .nav-icons img {
  filter: brightness(0);
  opacity: 0.8;
}
#header.white .nav-icons .tel img {
  filter: none;
  opacity: 1;
}
#header.white .toPage a {
  border-color: #333;
}
#header.white .nav-icons .tel img {
  filter: none;
  opacity: 1;
}
#header.white .toPage a {
  border-color: #333;
}
#header .nav-container {
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
}
#header.white .toPage a {
  border-color: #333;
}
#header.white .nav-icons img {
  filter: brightness(0);
  opacity: 0.8;
}
#header.white .toPage a {
  color: #fff !important;
  background-color: var(--textColor);
  border-color: var(--textColor);
}
#header.white .toPage a img {
  filter: brightness(0) invert(1);
}
#header.white .toPage a {
  color: #fff !important;
  background-color: var(--textColor);
  border-color: var(--textColor);
}
#header.white .toPage a img {
  filter: brightness(0) invert(1);
}
#header.onWhite {
  background: #fff;
}
#header.onWhite .logo img {
  filter: none;
}
#header.onWhite .nav-menu a {
  color: #333;
}
#header.onWhite .nav-icons a {
  color: #333;
}
#header.onWhite .nav-icons .download a,
#header.onWhite .nav-icons .tel a {
  color: var(--textColor);
}
#header.onWhite .nav-icons img {
  filter: brightness(0);
  opacity: 0.8;
}
#header.onWhite .nav-icons .tel img {
  filter: none;
  opacity: 1;
}
#header.onWhite .toPage a {
  border-color: #333;
}
#header.onWhite .nav-icons img {
  filter: brightness(0);
  opacity: 0.8;
}
#header.onWhite .toPage a {
  color: #fff !important;
  background-color: var(--textColor);
  border-color: var(--textColor);
}
#header.onWhite .toPage a img {
  filter: brightness(0) invert(1);
}
#header.onWhite .toPage a {
  color: #fff !important;
  background-color: var(--textColor);
  border-color: var(--textColor);
}
#header.onWhite .toPage a img {
  filter: brightness(0) invert(1);
}
#header .nav-right {
  display: flex;
}
#header .logo {
  width: 184px;
  line-height: 80px;
  align-self: center;
  display: flex;
}
#header .logo img {
  width: 100%;
  filter: brightness(0) invert(1);
  vertical-align: middle;
}
#header .nav-menu {
  display: flex;
  list-style: none;
  gap: 50px;
}
#header .nav-menu .nav_item1 {
  color: white;
  text-decoration: none;
  font-size: inherit;
  transition: color 0.3s ease;
  position: relative;
  line-height: 80px;
}
#header .nav-menu .nav_item1 img {
  width: 12px;
  margin-left: 10px;
  visibility: hidden;
  opacity: 0;
  transition: all 0.2s linear;
  transform: translateY(2px);
}
#header .nav-menu > li.act .nav_item1 {
  color: var(--textColor);
}
#header .nav-menu > li.act .nav_item1 img {
  opacity: 1;
  visibility: visible;
}
#header .nav-icons {
  display: flex;
  gap: 40px;
  align-items: center;
}
#header .nav-icons a {
  transition: all 0.2s linear;
  color: #fff;
  height: 40px;
}
#header .nav-icons a:hover {
  color: var(--textColor);
}
#header .nav-icons a:hover img {
  filter: none;
}
#header .toPage a:hover {
  color: #fff !important;
  border-color: var(--textColor) !important;
}
#header .toPage a:hover img {
  filter: brightness(0) invert(1);
}
#header .nav-icons > div {
  line-height: 80px;
  cursor: pointer;
  transition: color 0.3s ease;
}
#header .nav-icons > div.language {
  position: relative;
}
#header .nav-icons div img {
  width: 14px;
  vertical-align: middle;
  filter: brightness(0) invert(1);
}
#header .nav-container .nav-menu2 {
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translateX(-50%);
  background: #ffffff;
  border-radius: 0px 0px 10px 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  display: none;
  border-top: 1px solid rgba(13, 19, 26, 0.1);
}
#header .nav-container .nav-menu2 .tit:hover {
  color: var(--textColor);
}
#header .nav-container .nav-menu2.search {
  padding: 60px 80px 40px 80px;
  text-align: center;
}
#header .nav-container .nav-menu2.search .input_box {
  width: 100%;
  max-width: 800px;
  position: relative;
  display: inline-block;
  margin: auto;
  height: 50px;
  line-height: normal;
}
#header .nav-container .nav-menu2.search .input_box input {
  width: 100%;
  border: 1px solid #ccc;
  border-radius: 10px;
  padding: 0 20px;
  height: 100%;
  display: inline-block;
  transition: all 0.4s linear;
}
#header .nav-container .nav-menu2.search .input_box input:focus {
  border-color: var(--textColor);
}
#header .nav-container .nav-menu2.search .input_box img {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  filter: none;
}
#header .nav-container .languageInfo {
  padding: 20px 0;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  background-color: #fff;
  border-radius: 0 0 10px 10px;
  display: none;
}
#header .nav-container .languageInfo a {
  color: #333;
  height: auto;
  line-height: normal;
  padding: 10px 20px;
  display: flex;
  align-items: center;
}
#header .nav-container .languageInfo a:hover {
  color: var(--textColor);
}
#header .nav-container .languageInfo a i {
  border: 1px solid var(--textColor);
  font-size: 10px;
  display: inline-block;
  border-radius: 4px;
  padding: 0 4px;
  color: var(--textColor);
  margin-right: 10px;
}
#header .nav-container .nav-menu2 .toPage2 a:after {
  background: var(--textColor);
}
#header .nav-container .nav-menu2 .pro .pro_l {
  flex: 1;
  padding: 40px 80px 30px 80px;
}
#header .nav-container .nav-menu2 .pro .pro_l .proList {
  gap: 40px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
#header .nav-container .nav-menu2 .pro .pro_l .toPage2 a {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .pro .pro_l .toPage2 a img {
  filter: none;
  opacity: 1;
}
#header .nav-container .nav-menu2 .pro .pro_l .toPage2 a:hover {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .pro .pro_l .toPage a {
  color: #fff;
  background: var(--textColor);
  border-color: var(--textColor);
}
#header .nav-container .nav-menu2 .pro .pro_l .toPage a img {
  filter: brightness(0) invert(1);
  opacity: 1;
}
#header .nav-container .nav-menu2 .pro .pro_l .toPage a:hover {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 {
  flex: 1;
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_top {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  transition: all 0.4s linear;
  display: block;
  padding: 20px 0;
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_top .tit {
  color: #222222;
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_top .subTit {
  color: #777777;
  font-size: 12px;
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_top:hover {
  background: #f6f9fc;
  border-radius: 5px;
  border-color: transparent;
  padding: 20px;
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_top:hover .tit {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_list img {
  width: 20px;
  border-radius: 3px;
  transition: all 0.2s linear;
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_list p {
  color: #222;
  margin: 0 5px 0 10px;
  transition: all 0.2s linear;
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_list span {
  font-size: 10px;
  line-height: 1;
  padding: 4px;
  border-radius: 3px;
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_list .hot {
  color: #005bfe;
  background: #ebf2ff;
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_list .promotion {
  color: #8300fe;
  margin-left: 2px;
  background: #f6edff;
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_list a:hover p {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .pro .pro_l .pro_item1 .pro_item1_list a:hover img {
  transform: translateY(-2px);
}
#header .nav-container .nav-menu2 .pro .pro_r {
  flex: 0 0 440px;
  padding: 40px 80px 30px 80px;
  background: #f6f9fc;
}
#header .nav-container .nav-menu2 .pro .pro_r .image {
  width: 100%;
  height: 0;
  position: relative;
  padding-top: 48%;
  border-radius: 10px;
  overflow: hidden;
}
#header .nav-container .nav-menu2 .pro .pro_r .image .mes {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  padding: 30px;
  display: block;
}
#header .nav-container .nav-menu2 .pro .pro_r .image .mes .tit {
  line-height: 1.3;
}
#header .nav-container .nav-menu2 .pro .pro_r .image .toPage2 a {
  color: #fff;
}
#header .nav-container .nav-menu2 .pro .pro_r .image .toPage2 a::after {
  background: #fff;
}
#header .nav-container .nav-menu2 .pro .pro_r .image .toPage2 a:hover {
  color: #fff;
}
#header .nav-container .nav-menu2 .pro .pro_r .image .toPage2 a img {
  filter: brightness(0) invert(1);
  opacity: 1;
}
#header .nav-container .nav-menu2 .pro .pro_r .image > img {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  object-fit: cover;
  transition: all 0.4s linear;
}
#header .nav-container .nav-menu2 .pro .pro_r .image:hover > img {
  transform: scale(1.05);
}
#header .nav-container .nav-menu2 .pro .pro_r .info {
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}
#header .nav-container .nav-menu2 .pro .pro_r .info a {
  display: block;
  color: #777;
  transition: all 0.2s linear;
}
#header .nav-container .nav-menu2 .pro .pro_r .info a:hover {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .pro .pro_r .info .tit {
  color: #222;
}
#header .nav-container .nav-menu2 .solution {
  padding: 60px 80px 40px 80px;
  gap: 80px;
}
#header .nav-container .nav-menu2 .solution .solution_top {
  gap: 80px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
#header .nav-container .nav-menu2 .solution .toPage a {
  color: #fff;
  background: var(--textColor);
  border-color: var(--textColor);
}
#header .nav-container .nav-menu2 .solution .toPage a img {
  filter: brightness(0) invert(1);
  opacity: 1;
}
#header .nav-container .nav-menu2 .solution .toPage a:hover {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .solution .toPage2 a {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .solution .toPage2 a img {
  filter: none;
  opacity: 1;
}
#header .nav-container .nav-menu2 .solution .toPage2 a:hover {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .solution .solution_l .solution_item1_top {
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
#header .nav-container .nav-menu2 .solution .solution_l .solution_item1_list {
  padding-top: 10px;
  margin-top: 20px;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}
#header .nav-container .nav-menu2 .solution .solution_l .solution_item1_list a {
  flex: 0 0 33.33%;
}
#header .nav-container .nav-menu2 .solution .solution_l .solution_item1_list a:hover P {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .solution .solution_l .solution_item1_list img {
  width: 18px;
}
#header .nav-container .nav-menu2 .solution .solution_l .solution_item1_list p {
  color: #777;
  margin-left: 20px;
  transition: all 0.2s linear;
}
#header .nav-container .nav-menu2 .solution .solution_r {
  flex: 0 0 290px;
}
#header .nav-container .nav-menu2 .solution .solution_r .solution_item1_list a {
  flex: 0 0 100%;
}
#header .nav-container .nav-menu2 .solution.ecology .solution_l .solution_item1_list p {
  margin: 0 10px 0 0;
}
#header .nav-container .nav-menu2 .solution.ecology .solution_l .solution_item1_list a {
  flex: 0 0 100%;
}
#header .nav-container .nav-menu2 .solution.ecology {
  gap: 40px;
}
#header .nav-container .nav-menu2 .solution.ecology .solution_item1_list img {
  width: 12px;
  filter: brightness(0);
  opacity: 0.4;
  transition: all 0.2s linear;
}
#header .nav-container .nav-menu2 .solution.ecology .solution_l {
  flex: 1;
}
#header .nav-container .nav-menu2 .solution .solution_l .solution_item1_list a img {
  transition: all 0.2s linear;
}
#header .nav-container .nav-menu2 .solution .solution_l .solution_item1_list a:hover img {
  transform: translateY(-2px);
}
#header .nav-container .nav-menu2 .solution.ecology .solution_l .solution_item1_list a:hover img {
  filter: none;
  opacity: 4;
}
#header .nav-container .nav-menu2 .case {
  padding: 60px 80px 40px 80px;
}
#header .nav-container .nav-menu2 .case .case_top {
  gap: 90px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
#header .nav-container .nav-menu2 .case .case_l {
  flex: 1;
  gap: 40px;
}
#header .nav-container .nav-menu2 .case .case_l .caseList {
  flex: 1;
}
#header .nav-container .nav-menu2 .case .case_l .case_item1_list {
  gap: 10px;
}
#header .nav-container .nav-menu2 .case .case_l .case_item1_list a {
  background: #ffffff;
  border: 1px solid rgba(204, 204, 204, 0.46);
  border-radius: 10px;
  overflow: hidden;
  width: calc((100% - 10px)/2);
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s linear;
}
#header .nav-container .nav-menu2 .case .case_l .case_item1_list a:hover {
  border-color: var(--textColor);
}
#header .nav-container .nav-menu2 .case .case_l .case_item1_list a img {
  max-width: 100%;
  max-height: 100%;
}
#header .nav-container .nav-menu2 .case .case_r {
  flex: 0 0 280px;
}
#header .nav-container .nav-menu2 .case .case_r .case_r_list {
  position: relative;
  margin-bottom: 10px;
}
#header .nav-container .nav-menu2 .case .case_r .case_r_list .image {
  width: 100%;
  height: 0;
  position: relative;
  padding-top: 48%;
  border-radius: 10px;
  overflow: hidden;
}
#header .nav-container .nav-menu2 .case .case_r .case_r_list .image .mes {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  padding: 30px;
  display: flex;
  flex-wrap: wrap;
  align-content: center;
}
#header .nav-container .nav-menu2 .case .case_r .case_r_list .image .mes .tit {
  width: 100%;
  line-height: 1.3;
}
#header .nav-container .nav-menu2 .case .case_r .case_r_list .image .toPage2 a {
  color: #fff;
}
#header .nav-container .nav-menu2 .case .case_r .case_r_list .image .toPage2 a::after {
  background: #fff;
}
#header .nav-container .nav-menu2 .case .case_r .case_r_list .image .toPage2 a:hover {
  color: #fff;
}
#header .nav-container .nav-menu2 .case .case_r .case_r_list .image .toPage2 a img {
  filter: brightness(0) invert(1);
  opacity: 1;
}
#header .nav-container .nav-menu2 .case .case_r .case_r_list .image > img {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  object-fit: cover;
  transition: all 0.4s linear;
}
#header .nav-container .nav-menu2 .case .case_r .case_r_list .image:hover > img {
  transform: scale(1.05);
}
#header .nav-container .nav-menu2 .case .toPage2 a {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .case .toPage2 a img {
  filter: none;
  opacity: 1;
}
#header .nav-container .nav-menu2 .case .toPage2 a:hover {
  color: var(--textColor);
}
#header .nav-container .nav-menu2 .about {
  gap: 50px;
}
#header .nav-container .nav-menu2 .about_l {
  gap: 40px;
  flex: 1;
}
#header .nav-container .nav-menu2 .about_l .solution_l {
  flex: 0 0 30%;
}
#header .nav-container .nav-menu2 .about_l .solution_l .solution_item1_list a {
  flex: 0 0 100%;
}
#header .nav-container .nav-menu2 .about_l .solution_l .solution_item1_list a p {
  margin: 0;
}
#header .nav-container .nav-menu2 .about_r {
  flex: 0 0 280px;
}
#header .nav-container .nav-menu2 .about_r .image {
  width: 100%;
  height: 0;
  position: relative;
  padding-top: 48%;
  border-radius: 10px;
  overflow: hidden;
}
#header .nav-container .nav-menu2 .about_r .image .mes {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  color: #fff;
  padding: 30px;
  display: block;
}
#header .nav-container .nav-menu2 .about_r .image .mes .tit {
  line-height: 1.3;
}
#header .nav-container .nav-menu2 .about_r .image .toPage2 a {
  color: #fff;
}
#header .nav-container .nav-menu2 .about_r .image .toPage2 a::after {
  background: #fff;
}
#header .nav-container .nav-menu2 .about_r .image .toPage2 a:hover {
  color: #fff;
}
#header .nav-container .nav-menu2 .about_r .image .toPage2 a img {
  filter: brightness(0) invert(1);
  opacity: 1;
}
#header .nav-container .nav-menu2 .about_r .image > img {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  object-fit: cover;
  transition: all 0.4s linear;
}
#header .nav-container .nav-menu2 .about_r .image:hover > img {
  transform: scale(1.05);
}
@media only screen and (max-width: 1920px) {
  #header .nav-container .nav-menu2.search {
    padding: 3vw 4vw 2vw 4vw;
  }
  #header .nav-container .nav-menu2 .pro .pro_l {
    flex: 1;
    padding: 2vw 4vw 1.5vw 4vw;
  }
  #header .nav-container .nav-menu2 .pro .pro_r {
    padding: 2vw 4vw 1.5vw 4vw;
  }
  #header .nav-container .nav-menu2 .solution {
    padding: 3vw 4vw 2vw 4vw;
  }
  #header .nav-container .nav-menu2 .case {
    padding: 3vw 4vw 2vw 4vw;
  }
}
@media only screen and (max-width: 1600px) {
  #header .nav-menu {
    gap: 30px;
  }
  #header .nav-container .nav-menu2 .case .case_l .case_item1_list a {
    height: 54px;
  }
  #header .logo {
    width: 160px;
  }
  #header .nav-menu {
    gap: 30px;
  }
  #header .nav-icons {
    gap: 20px;
  }
  #header .nav-container .nav-menu2 .about_r .image .mes,
  #header .nav-container .nav-menu2 .pro .pro_r .image .mes,
  #header .nav-container .nav-menu2 .case .case_r .case_r_list .image .mes {
    padding: 1.5vw;
  }
}
@media only screen and (max-width: 1440px) {
  #header .logo {
    width: 80px;
  }
  #header .nav-container .nav-menu2 .pro .pro_r .image,
  #header .nav-container .nav-menu2 .case .case_r .case_r_list .image,
  #header .nav-container .nav-menu2 .about_r .image {
    padding-top: 56%;
  }
  #header .nav-container .nav-menu2 .solution {
    gap: 20px;
  }
  #header .nav-container .nav-menu2 .solution.ecology {
    gap: 20px;
  }
  #header .nav-container .nav-menu2 .about_l {
    gap: 20px;
  }
  #header .nav-container .nav-menu2 .mt30 {
    margin-top: 1vw;
  }
  #header .nav-menu {
    gap: 0px;
  }
  #header .nav-icons {
    gap: 20px;
  }
  .toPage a {
    height: 40px;
    padding: 0 10px;
  }
  #header .nav-container .nav-menu2 .pro .pro_r {
    flex: 0 0 300px;
  }
  #header .nav-container .nav-menu2 .about_r,
  #header .nav-container .nav-menu2 .case .case_r {
    flex: 0 0 200px;
  }
  #header .nav-container .nav-menu2 .case .case_top {
    gap: 40px;
  }
  #header .logo,
  #header .nav-menu .nav_item1 {
    line-height: 60px;
  }
  #header .nav-icons > div {
    line-height: 60px;
  }
  #header .nav-menu {
    gap: 25px;
  }
  #header .nav-icons a {
    height: 32px;
  }
  #header .nav-menu {
    font-size: 16px;
  }
  #header .nav-icons .toPage img {
    width: 12px;
  }
  #header .nav-container .nav-menu2 .case .case_l {
    flex: 1;
    gap: 20px;
  }
}