body {
  background: #fff;
  position: relative;
}

section .section-title {
  font-weight: 700;
  text-align: center;
  color: #1f1e1e;
}
section .section-text {
  font-weight: lighter;
  text-align: center;
  font-size: 18px;
  line-height: 28px;
  margin-top: 8px;
}

.product-first {
  background: url(../images/product/first_bg.jpg) no-repeat;
  background-size: cover;
  margin-bottom: 46px;
}
.product-first .page-nav {
  padding-top: 35px;
  padding-bottom: 32px;
  color: #f2f7fb;
  font-size: 20px;
}
.product-first .page-nav a {
  color: #f2f7fb;
  font-size: 20px;
  line-height: 36px;
}
.product-first .page-nav a:last-child {
  cursor: text;
}
.product-first .page-nav a:last-child span {
  color: #f9bb0b;
  border-bottom: solid 1px #f9bb0b;
  padding-bottom: 3px;
}
.product-first .page-nav a:last-child:hover {
  font-weight: normal;
}
.product-first .page-nav a:hover {
  font-weight: 700;
}
.product-first .first-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.95);
  padding: 0;
}
.product-first .first-content .first-content-left {
  padding: 12px 14px;
}
.product-first .first-content .first-content-left .mySwiper2 {
  height: 80%;
}
.product-first .first-content .first-content-left .mySwiper2 .swiper-wrapper {
  width: 100%;
  height: 100%;
}
.product-first .first-content .first-content-left .mySwiper2 .swiper-wrapper .video-slide .video-box .video-poster {
  width: 100%;
  height: 100%;
  display: block;
}
.product-first .first-content .first-content-left .mySwiper2 .swiper-wrapper .swiper-slide {
  width: 100%;
  height: 100%;
}
.product-first .first-content .first-content-left .mySwiper2 .swiper-wrapper .swiper-slide img {
  width: 100%;
  height: 100%;
}
.product-first .first-content .first-content-left .mySwiper {
  height: 20%;
  padding-top: 12px;
}
.product-first .first-content .first-content-left .mySwiper .swiper-wrapper {
  width: 100%;
  height: 100%;
}
.product-first .first-content .first-content-left .mySwiper .swiper-wrapper .video-slide .video-box {
  width: 100%;
  height: 100%;
}
.product-first .first-content .first-content-left .mySwiper .swiper-wrapper .video-slide .video-box .video-poster {
  width: 100%;
  height: 100%;
  display: block;
}
.product-first .first-content .first-content-left .mySwiper .swiper-wrapper .swiper-slide img {
  width: 100%;
  height: 100%;
}
.product-first .first-content .first-content-right .title {
  font-weight: 700;
  color: #232323;
}
.product-first .first-content .first-content-right .tedian {
  line-height: 25px;
  font-weight: 700;
  color: #fff;
  background: #f9bb0b;
  border-radius: 25px;
  display: flex;
  align-items: center;
}
.product-first .first-content .first-content-right .tedian span {
  width: 33.33%;
  display: inline-block;
  border-right: 1px solid #fff;
  text-align: center;
}
.product-first .first-content .first-content-right .tedian span:last-child {
  border-right: none;
}
.product-first .first-content .first-content-right .canshu {
  display: flex;
  justify-content: space-between;
}
.product-first .first-content .first-content-right .canshu .canshu-item {
  width: 50%;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
}
.product-first .first-content .first-content-right .canshu .canshu-item img {
  display: inline-block;
  width: 60px;
  height: auto;
}
.product-first .first-content .first-content-right .canshu .canshu-item p {
  color: #0e0e0d;
  font-size: 18px;
  line-height: 30px;
}
.product-first .first-content .first-content-right .canshu .canshu-item p b {
  color: #1f1f1f;
}
.product-first .first-content .first-content-right .product-desc {
  background: #ffffff;
  border: dashed 1px #dcdcdc;
  color: #1f1f1f;
}
.product-first .first-content .first-content-right .product-btn {
  display: flex;
  justify-content: space-between;
}
.product-first .first-content .first-content-right .product-btn a {
  display: block;
  width: 48.5%;
  padding: 10px 0;
  color: #fff;
  text-align: center;
}
.product-first .first-content .first-content-right .product-btn a img {
  display: inline-block;
  width: 35px;
  height: auto;
}
.product-first .first-content .first-content-right .product-btn .btn-yellow {
  background: #f9bb0b;
  background-size: 200% auto;
  transition: 0.5s;
}
.product-first .first-content .first-content-right .product-btn .btn-yellow:hover {
  background-image: linear-gradient(to right, #f9bb0b 0%, #f6e1ad 51%, #f9bb0b 100%);
  background-position: center right;
}
.product-first .first-content .first-content-right .product-btn .btn-blue {
  background: #3f51b5;
  position: relative;
  background-size: 200% auto;
  transition: 0.5s;
}
.product-first .first-content .first-content-right .product-btn .btn-blue:hover {
  background-image: linear-gradient(to right, #3f51b5 0%, #cacfee 51%, #3f51b5 100%);
  background-position: center right;
}

.article-nav {
  background: #3f51b5;
  padding: 0;
}
.article-nav .nav {
  height: 100%;
}
.article-nav .nav .nav-item {
  width: 25%;
  height: 100%;
}
.article-nav .nav .nav-item .nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
}
.article-nav .nav .nav-item .nav-link p {
  border-right: solid 1px rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.9);
  width: 100%;
  font-weight: lighter;
  text-align: center;
}
.article-nav .nav .nav-item .nav-link img {
  display: none;
}
.article-nav .nav .nav-item .active {
  background: #ffcb31;
}
.article-nav .nav .nav-item .active p {
  font-weight: 700;
  text-shadow: 1px 1px 1px rgba(15, 33, 155, 0.35);
}
.article-nav .nav .nav-item .active img {
  display: block;
  margin-top: 10px;
}

.product-advantage {
  background: url(../images/product/adv_bg.jpg) no-repeat;
  background-size: cover;
}
.product-advantage .advantage-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.product-advantage .advantage-content .content-list .item {
  display: flex;
  justify-content: space-between;
  position: relative;
  margin-top: 90px;
}
.product-advantage .advantage-content .content-list .left-item .text-box p{
  text-align: end;
}
.product-advantage .advantage-content .content-list .item:first-child {
  margin-top: 0;
}
.product-advantage .advantage-content .content-list .item .text-box h2 {
  color: #201f1f;
  font-weight: 700;
}
.product-advantage .advantage-content .content-list .item .text-box p {
  color: #444343;
  line-height: 28px;
  margin-top: 5px;
}
.product-advantage .advantage-content .content-list .item .icon-box {
  background: url(../images/product/adv_bg1.png) no-repeat;
  background-size: 100% 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}
.product-advantage .advantage-content .content-list .item .icon-box .icon-2 {
  display: none;
}
.product-advantage .advantage-content .content-list .item .bottom-line {
  position: absolute;
  bottom: 0;
  left: -3px;
}
.product-advantage .advantage-content .content-list .item:hover .icon-box {
  background: url(../images/product/adv_bg2.png) no-repeat;
  background-size: 100% 100%;
}
.product-advantage .advantage-content .content-list .item:hover .icon-box .icon-2 {
  display: block;
}
.product-advantage .advantage-content .content-list .item:hover .icon-box .icon-1 {
  display: none;
}
.product-advantage .advantage-content .content-left .item .text-box h2 {
  text-align: right;
}
.product-advantage .advantage-content .content-middle {
  position: relative;
}
.product-advantage .advantage-content .content-middle .advantage-img {
  width: 100%;
  height: auto;
  display: block;
}
.product-advantage .advantage-content .content-middle .advantage-btn {
  width: 100%;
  text-align: center;
  color: #ffcb31;
  line-height: 28px;
}
.product-advantage .advantage-content .content-middle .advantage-btn span {
  border-bottom: solid 1px #ffcb31;
}
.product-advantage .advantage-content .content-right .item .bottom-line {
  left: auto;
  right: -3px;
  transform: scaleX(-1);
}

.technical-parameters {
  margin-bottom: 8px;
}
.technical-parameters .section-title {
  padding-top: 40px;
}
.technical-parameters .product-param:nth-child(2) {
  margin-top: 25px;
}
.technical-parameters .product-param {
  overflow-x: auto;
  margin-top: 48px;
}
.technical-parameters .product-param .tips {
  color: #1f1e1e;
  margin-top: 12px;
}
.technical-parameters .product-param table {
  border-collapse: collapse;
  width: 100%;
}
.technical-parameters .product-param table tbody tr td {
  border: solid 1px #e2e2e2;
  text-align: center;
  height: 46px;
  color: #1f1e1e;
}
.technical-parameters .product-param table tbody tr:hover {
  background: #ddd;  
}
.technical-parameters .product-param table tbody tr .table-title {
  font-weight: 700;
  background: #ddd;
  height: 57px;
  color: #1f1e1e;
}
.technical-parameters .product-param table tbody tr .table-title a {
  color: #ffcb31;
  font-weight: normal;
  line-height: 57px;
}
.technical-parameters .product-param table tbody tr .table-title a img {
  margin-right: 5px;
}
.technical-parameters .product-param table tbody tr .table-title a span {
  border-bottom: solid 1px #ffcb31;
}

.product-principle .principle-content {
  padding: 45px 0 50px;
}
.product-principle .principle-content .content-left .principle-text {
  color: #010101;
  margin-top: 18px;
}

.product-third {
  background: #f4f4f4;
  padding: 45px 0 60px;
  overflow-x: hidden;
}
.product-third .section-title a {
  color: #1f1e1e;
}
.product-third .section-text {
  color: #010101;
}
.product-third .case-list .case-item {
  overflow: hidden;
  display: block;
  width: 100%;
  margin-bottom: 25px;
}
.product-third .case-list .case-item img {
  width: 100%;
  height: auto;
  display: block;
  transition: all 0.5s;
}
.product-third .case-list .case-item .case-info {
  background: #e5e5e5;
  text-align: center;
  padding: 20px 10px 25px;
  border-top: 1px solid #fff;
}
.product-third .case-list .case-item .case-info h3 {
  color: #262525;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-line-clamp: 1;
  display: -webkit-box;
  -webkit-box-orient: vertical;
}
.product-third .case-list .case-item .case-info p {
  color: #262525;
  opacity: 0.78;
  margin-top: 5px;
}
.product-third .case-list .case-item .case-info p span:first-child {
  margin-right: 15px;
}
.product-third .case-list .case-item .case-info .btn-group {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}
.product-third .case-list .case-item .case-info .btn-group a {
  display: block;
}
.product-third .case-list .case-item .case-info .btn-group .btn-left {
  text-shadow: 1px 1px 1px rgba(64, 48, 4, 0.15);
  color: #fff;
  background: #f9bb0b;
  background-size: 200% auto;
  transition: 0.5s;
}
.product-third .case-list .case-item .case-info .btn-group .btn-left:hover {
  background-image: linear-gradient(to right, #f9bb0b 0%, #f6e1ad 51%, #f9bb0b 100%);
  background-position: center right;
}
.product-third .case-list .case-item .case-info .btn-group .btn-right {
  background: #3f51b5;
  background-size: 200% auto;
  transition: 0.5s;
}
.product-third .case-list .case-item .case-info .btn-group .btn-right span {
  color: rgba(255, 255, 255, 0.7);
  border-bottom: solid 1px rgba(255, 255, 255, 0.7);
}
.product-third .case-list .case-item .case-info .btn-group .btn-right:hover {
  background-image: linear-gradient(to right, #3f51b5 0%, #7f90f0 51%, #3f51b5 100%);
  background-position: center right;
}
.product-third .case-list .case-item:hover img {
  transform: scale(1.01);
}
.product-third .case-list .case-item:hover .case-info {
  background: #3f51b5;
}
.product-third .case-list .case-item:hover .case-info h3 {
  color: #fff;
}
.product-third .case-list .case-item:hover .case-info p {
  color: #fff;
}
.product-third .case-list .case-item:hover .case-info .btn-group .btn-right {
  border: solid 1px rgba(255, 255, 255, 0.7);
}

.service-section {
  background: url(../images/product/service_bg.jpg) no-repeat;
  background-size: cover;
  padding: 50px 0 77px;
}
.service-section .section-title a {
  color: #1f1e1e;
}
.service-section .service-list-group {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.service-section .service-list-group .service-list {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.service-section .service-list-group .service-list .service-item {
  background: #ededf5;
  border-radius: 50%;
  box-shadow: 1px 1px 16px 0px rgba(20, 26, 63, 0.06);
}
.service-section .service-list-group .service-list .service-item .service-bg {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: #fff;
  width: 100%;
  height: 100%;
  border-radius: 50%;
}
.service-section .service-list-group .service-list .service-item .service-bg .icon-2 {
  display: none;
}
.service-section .service-list-group .service-list .service-item .service-bg p {
  color: #1f1e1e;
  margin-top: 5px;
  text-align: center;
}
.service-section .service-list-group .service-list .service-item:hover {
  border: dashed 1px rgba(63, 81, 181, 0.5);
}
.service-section .service-list-group .service-list .service-item:hover .service-bg {
  background: #3f51b5;
}
.service-section .service-list-group .service-list .service-item:hover .service-bg .icon-1 {
  display: none;
}
.service-section .service-list-group .service-list .service-item:hover .service-bg .icon-2 {
  display: block;
}
.service-section .service-list-group .service-list .service-item:hover .service-bg p {
  color: #fff;
}
.service-section .service-list-group .service-arrow1 {
  width: 32px;
  height: 31px;
}

@media (max-width: 575px) {
  section .section-title {
    font-size: 24px;
  }
  .product-first {
    padding-bottom: 60px;
  }
  .product-first .first-content {
    flex-wrap: wrap;
  }
  .product-first .first-content .first-content-left {
    width: 100%;
  }
  .product-first .first-content .first-content-right {
    width: 100%;
    padding-bottom: 50px;
  }
  .product-first .first-content .first-content-right .title {
    font-size: 22px;
    padding: 20px 12px 20px 12px;
  }
  .product-first .first-content .first-content-right .tedian {
    font-size: 18px;
    padding: 10px;
    margin: 0px 12px 0 12px;
  }
  .product-first .first-content .first-content-right .canshu {
    padding: 20px 12px 0 12px;
  }
  .product-first .first-content .first-content-right .canshu .canshu-item img {
    width: 40px;
    height: auto;
  }
  .product-first .first-content .first-content-right .canshu .canshu-item p {
    font-size: 16px;
  }
  .product-first .first-content .first-content-right .canshu .canshu-item p b {
    font-size: 20px;
  }
  .product-first .first-content .first-content-right .product-desc {
    margin: 20px 12px 0 12px;
    padding: 15px 20px;
    font-size: 16px;
    line-height: 28px;
  }
  .product-first .first-content .first-content-right .product-btn {
    margin: 20px 12px 0 12px;
  }
  .product-first .first-content .first-content-right .product-btn a {
    font-size: 16px;
    line-height: 30px;
  }
  .product-first .first-content .first-content-right .product-btn a img {
    width: 30px;
    height: 28px;
  }
  .article-nav {
    height: 120px;
  }
  .article-nav .nav {
    padding-right: 0;
    flex-wrap: wrap;
  }
  .article-nav .nav .nav-item {
    height: 50%;
    width: 50%;
  }
  .article-nav .nav .nav-item .nav-link {
    padding: 0;
    justify-content: center;
  }
  .article-nav .nav .nav-item .nav-link p {
    font-size: 16px;
    line-height: 24px;
  }
  .article-nav .nav .nav-item .active img {
    display: none;
  }
  .product-advantage {
    padding: 30px 12px 0px;
  }
  .product-advantage .advantage-content {
    flex-wrap: wrap;
  }
  .product-advantage .advantage-content .content-list .item .text-box {
    width: 82%;
    padding-bottom: 35px;
  }
  .product-advantage .advantage-content .content-list .item {
    margin-top: 0px;
  }
  .product-advantage .advantage-content .content-list .item .text-box h2 {
    font-size: 20px;
    line-height: 30px;
  }
  .product-advantage .advantage-content .content-list .item .text-box p {
    font-size: 16px;
  }
  .product-advantage .advantage-content .content-list .item .icon-box {
    width: 82px;
    height: 90px;
  }
  .product-advantage .advantage-content .content-list .item .icon-box img {
    max-width: 45%;
  }
  .product-advantage .advantage-content .content-list .item .bottom-line {
    display: none;
  }
  .product-advantage .advantage-content .content-left {
    width: 100%;
  }
  .product-advantage .advantage-content .content-middle {
    width: 100%;
  }
  .product-advantage .advantage-content .content-middle .advantage-btn {
    position: absolute;
    bottom: 110px;
    font-size: 16px;
  }
  .product-advantage .advantage-content .content-right {
    width: 100%;
  }
  .technical-parameters .product-param .tips {
    font-size: 16px;
  }
  .technical-parameters .product-param table {
    min-width: 600px;
  }
  .technical-parameters .product-param table tbody tr td {
    font-size: 16px;
  }
  .technical-parameters .product-param table tbody tr .table-title {
    font-size: 18px;
  }
  .technical-parameters .product-param table tbody tr .table-title a {
    font-size: 16px;
  }
  .technical-parameters .product-param table tbody tr .table-title a img {
    width: 30px;
    height: 25px;
  }
  .product-principle .principle-content {
    padding: 30px 0 20px;
  }
  .product-principle .principle-content .content-left .principle-text {
    line-height: 28px;
    font-size: 16px;
  }
  .product-third .case-list {
    padding: 32px 12px 0;
  }
  .product-third .case-list .case-item .case-info h3 {
    font-size: 20px;
  }
  .product-third .case-list .case-item .case-info p {
    font-size: 16px;
  }
  .product-third .case-list .case-item .case-info .btn-group a {
    height: 40px;
    line-height: 40px;
    width: 160px;
  }
  .product-third .case-list .case-item .case-info .btn-group .btn-left {
    font-size: 16px;
  }
  .product-third .case-list .case-item .case-info .btn-group .btn-right {
    font-size: 16px;
  }
  .service-section {
    padding: 30px 12px;
  }
  .service-section .service-list-group {
    padding: 0;
    flex-wrap: wrap;
  }
  .service-section .service-list-group .service-arrow1 {
    display: none;
  }
  .service-section .service-list-group .service-list {
    width: 100%;
    margin-top: 25px;
  }
  .service-section .service-list-group .service-list .service-arrow {
    display: none;
  }
  .service-section .service-list-group .service-list .service-item {
    width: 95px;
    height: 95px;
    padding: 5px;
  }
  .service-section .service-list-group .service-list .service-item .service-bg img {
    width: 38px;
    height: 38px;
  }
  .service-section .service-list-group .service-list .service-item .service-bg p {
    font-size: 14px;
  }
}
@media (min-width: 576px) {
  section .section-title {
    font-size: 30px;
  }
  .product-first {
    padding-bottom: 60px;
  }
  .product-first .first-content {
    flex-wrap: wrap;
  }
  .product-first .first-content .first-content-left {
    width: 100%;
  }
  .product-first .first-content .first-content-left .mySwiper2 .swiper-wrapper .video-slide .video-box .bofang-icon {
    margin-top: -48px;
    margin-left: -48px;
    width: 96px;
    height: 96px;
  }
  .product-first .first-content .first-content-left .mySwiper .swiper-wrapper .video-slide .video-box .bofang-icon {
    margin-top: -16.5px;
    margin-left: -16.5px;
    width: 33px;
    height: 33px;
  }
  .product-first .first-content .first-content-right {
    width: 100%;
    padding-bottom: 50px;
  }
  .product-first .first-content .first-content-right .title {
    font-size: 28px;
    padding: 25px 15px 20px 30px;
  }
  .product-first .first-content .first-content-right .tedian {
    font-size: 20px;
    padding: 10px 20px;
    margin: 0px 40px 0 30px;
    max-width: 600px;
  }
  .product-first .first-content .first-content-right .canshu {
    padding: 20px 40px 0 30px;
    max-width: 600px;
  }
  .product-first .first-content .first-content-right .canshu .canshu-item p b {
    font-size: 24px;
  }
  .product-first .first-content .first-content-right .product-desc {
    margin: 20px 40px 0 30px;
    padding: 15px 20px;
    font-size: 18px;
    line-height: 28px;
  }
  .product-first .first-content .first-content-right .product-btn {
    margin: 20px 40px 0 30px;
    max-width: 600px;
  }
  .product-first .first-content .first-content-right .product-btn a {
    font-size: 20px;
    line-height: 30px;
  }
  .article-nav {
    height: 80px;
  }
  .article-nav .nav {
    padding-right: 0;
  }
  .article-nav .nav .nav-item .nav-link {
    padding: 20px 0 0;
  }
  .article-nav .nav .nav-item .nav-link p {
    font-size: 16px;
    line-height: 20px;
  }
  .article-nav .nav .nav-item .active img {
    width: 22px;
    height: 16px;
    margin-top: 5px;
  }
  .product-advantage {
    padding: 50px 0px 65px;
  }
  .product-advantage .advantage-content {
    max-width: 540px;
    margin: 0 auto;
    flex-wrap: wrap;
  }
  .product-advantage .advantage-content .content-list .item .text-box {
    width: 82%;
    padding-bottom: 45px;
  }
  .product-advantage .advantage-content .content-list .item .text-box h2 {
    font-size: 22px;
    line-height: 32px;
  }
  .product-advantage .advantage-content .content-list .item .text-box p {
    font-size: 18px;
  }
  .product-advantage .advantage-content .content-list .item .icon-box {
    width: 112px;
    height: 124px;
  }
  .product-advantage .advantage-content .content-list .item .bottom-line {
    width: 86%;
    display: block;
  }
  .product-advantage .advantage-content .content-left {
    width: 100%;
  }
  .product-advantage .advantage-content .content-middle {
    width: 100%;
  }
  .product-advantage .advantage-content .content-middle .advantage-btn {
    position: absolute;
    bottom: 140px;
    font-size: 16px;
  }
  .product-advantage .advantage-content .content-right {
    width: 100%;
  }
  .technical-parameters .product-param .tips {
    font-size: 16px;
  }
  .technical-parameters .product-param table {
    min-width: 800px;
  }
  .technical-parameters .product-param table tbody tr td {
    font-size: 18px;
  }
  .technical-parameters .product-param table tbody tr .table-title {
    font-size: 20px;
  }
  .technical-parameters .product-param table tbody tr .table-title a {
    font-size: 18px;
  }
  .product-principle .principle-content .content-left {
    width: 100%;
  }
  .product-principle .principle-content .content-left .principle-text {
    line-height: 30px;
    font-size: 18px;
  }
  .product-third .case-list {
    padding: 32px 12px 0;
  }
  .product-third .case-list .case-item .case-info h3 {
    font-size: 20px;
  }
  .product-third .case-list .case-item .case-info p {
    font-size: 16px;
  }
  .product-third .case-list .case-item .case-info .btn-group a {
    height: 40px;
    line-height: 40px;
    width: 160px;
  }
  .product-third .case-list .case-item .case-info .btn-group .btn-left {
    font-size: 16px;
  }
  .product-third .case-list .case-item .case-info .btn-group .btn-right {
    font-size: 16px;
  }
  .service-section .service-list-group {
    padding: 0 12px;
    flex-wrap: wrap;
    max-width: 540px;
    margin: 0 auto;
  }
  .service-section .service-list-group .service-arrow1 {
    display: none;
  }
  .service-section .service-list-group .service-list {
    width: 100%;
    margin-top: 25px;
  }
  .service-section .service-list-group .service-list .service-item {
    width: 95px;
    height: 95px;
    padding: 5px;
  }
  .service-section .service-list-group .service-list .service-item .service-bg img {
    width: 38px;
    height: 38px;
  }
  .service-section .service-list-group .service-list .service-item .service-bg p {
    font-size: 15px;
  }
}
@media (min-width: 768px) {
  .article-nav .nav {
    padding: 0 12px;
  }
  .product-advantage .advantage-content {
    max-width: 720px;
  }
  .product-advantage .advantage-content .content-middle img {
    max-width: 640px;
    margin: 0 auto;
  }
  .product-advantage .advantage-content .content-list .item .text-box {
    width: 82%;
  }
  .product-advantage .advantage-content .content-list .item .bottom-line {
    width: 91%;
  }
  .product-advantage .advantage-content .content-middle .advantage-btn {
    bottom: 140px;
  }
  .product-material .materials a:nth-child(7), .product-material .materials a:nth-child(8) {
    display: inline-block;
  }
  .service-section .service-list-group {
    max-width: none;
  }
  .service-section .service-list-group .service-list {
    margin-top: 45px;
  }
  .service-section .service-list-group .service-list .service-item {
    width: 140px;
    height: 140px;
    padding: 9px;
  }
  .service-section .service-list-group .service-list .service-item .service-bg img {
    width: 48px;
    height: 48px;
  }
  .service-section .service-list-group .service-list .service-item .service-bg p {
    font-size: 18px;
  }
}
@media (min-width: 992px) {
  section .section-title {
    font-size: 36px;
  }
  .article-nav .nav .nav-item .nav-link p {
    font-size: 20px;
    line-height: 20px;
  }
  .product-advantage .advantage-content {
    max-width: 960px;
  }
  .product-third .section-title a {
    font-size: 34px;
  }
  .product-third .case-list {
    padding: 32px 0px 0;
  }
  .product-third .case-list .case-item .case-info h3 {
    font-size: 18px;
  }
  .product-third .case-list .case-item .case-info p {
    font-size: 16px;
  }
  .product-third .case-list .case-item .case-info .btn-group a {
    height: 40px;
    line-height: 40px;
    width: 142px;
  }
  .product-third .case-list .case-item .case-info .btn-group .btn-left {
    font-size: 16px;
  }
  .product-third .case-list .case-item .case-info .btn-group .btn-right {
    font-size: 16px;
  }
  .service-section .service-list-group {
    max-width: 960px;
    margin: 0 auto;
  }
}
@media (min-width: 1200px) {
  .product-first {
    padding-bottom: 50px;
  }
  .product-first .first-content .first-content-left {
    width: 50%;
  }
  .product-first .first-content .first-content-right {
    width: 50%;
    padding-bottom: 0;
  }
  .product-first .first-content .first-content-right .title {
    font-size: 24px;
    padding: 15px 20px 10px 0px;
  }
  .product-first .first-content .first-content-right .tedian {
    font-size: 18px;
    padding: 10px;
    margin: 5px 20px 5px 0px;
  }
  .product-first .first-content .first-content-right .canshu {
    padding: 10px 20px 10px 0px;
    max-width: none;
  }
  .product-first .first-content .first-content-right .canshu .canshu-item p b {
    font-size: 22px;
  }
  .product-first .first-content .first-content-right .product-desc {
    margin:  0 20px 20px 0px;
    padding: 10px 15px;
    font-size: 16px;
    line-height: 28px;
  }
  .product-first .first-content .first-content-right .product-btn {
    margin: 5px 20px 0 0px;
  }
  .product-first .first-content .first-content-right .product-btn a {
    font-size: 18px;
    line-height: 26px;
    padding: 5px 0;
  }
  .article-nav {
    height: 104px;
  }
  .article-nav .nav .nav-item .nav-link {
    padding: 35px 0 0;
  }
  .article-nav .nav .nav-item .nav-link p {
    font-size: 22px;
    line-height: 30px;
  }
  .article-nav .nav .nav-item .active img {
    width: 24px;
    height: 20px;
    margin-top: 3px;
  }
  .product-advantage {
    padding: 50px 60px 65px;
  }
  .product-advantage .advantage-content {
    max-width: none;
  }
  .product-advantage .advantage-content .content-list .item .text-box {
    padding-bottom: 35px;
  }
  .product-advantage .advantage-content .content-list .item .text-box h2 {
    font-size: 22px;
    line-height: 32px;
  }
  .product-advantage .advantage-content .content-list .item .text-box p {
    font-size: 18px;
  }
  .product-advantage .advantage-content .content-list .item .icon-box {
    width: 102px;
    height: 108px;
  }
  .product-advantage .advantage-content .content-list .item .icon-box img {
    max-width: 42%;
  }
  .product-advantage .advantage-content .content-list .item .bottom-line {
    display: none;
  }
  .product-advantage .advantage-content .content-list .item:nth-child(2) {
    flex-direction: row;
    transform: none;
  }
  .product-advantage .advantage-content .content-left {
    width: 34%;
  }
  .product-advantage .advantage-content .content-left .item {
    padding-right: 10px;
  }
  .product-advantage .advantage-content .content-middle {
    width: 32%;
  }
  .product-advantage .advantage-content .content-middle .advantage-btn {
    bottom: 100px;
    font-size: 16px;
  }
  .product-advantage .advantage-content .content-right {
    width: 34%;
  }
  .product-advantage .advantage-content .content-right .item {
    padding-left: 10px;
  }
  .product-advantage .advantage-content .content-list .item .text-box {
    width: 72%;
  }
  .technical-parameters .product-param .tips {
    font-size: 18px;
  }
  .product-material .materials a:nth-child(11), .product-material .materials a:nth-child(12), .product-material .materials a:nth-child(13) {
    display: inline-block;
  }
  .product-material .material-list .material-item {
    width: 16%;
  }
  .product-material .material-list .material-item p {
    font-size: 18px;
  }
  .product-third .case-list .case-item {
    margin-bottom: 0;
  }
  .service-section .service-list-group {
    margin-top: 50px;
    max-width: none;
  }
  .service-section .service-list-group .service-arrow1 {
    display: block;
  }
  .service-section .service-list-group .service-list {
    width: 47.8%;
    margin-top: 0;
  }
  .service-section .service-list-group .service-list .service-item {
    width: 110px;
    height: 110px;
    padding: 6px;
  }
  .service-section .service-list-group .service-list .service-item .service-bg img {
    width: 42px;
    height: 42px;
  }
  .service-section .service-list-group .service-list .service-item .service-bg p {
    font-size: 16px;
  }
}
@media (min-width: 1400px) {
  section .section-title {
    font-size: 38px;
  }
  section .section-text {
    font-size: 20px;
  }
  .product-first .first-content .first-content-left .mySwiper2 .swiper-wrapper .video-slide .video-box video {
    width: 746px;
    height: 513px;
  }
  .product-first .first-content .first-content-right .title {
    font-size: 26px;
    padding: 25px 20px 15px 20px;
  }
  .product-first .first-content .first-content-right .tedian {
    font-size: 18px;
    padding: 10px;
    margin: 5px 20px;
  }
  .product-first .first-content .first-content-right .canshu {
    padding: 15px 20px;
  }
  .product-first .first-content .first-content-right .canshu .canshu-item p b {
    font-size: 24px;
  }
  .product-first .first-content .first-content-right .product-desc {
    margin: 0 20px 20px 20px;
    padding: 15px 20px;
    font-size: 18px;
    line-height: 30px;
  }
  .product-first .first-content .first-content-right .product-btn {
    margin: 10px 20px 0 20px;
  }
  .product-first .first-content .first-content-right .product-btn a {
    font-size: 20px;
    line-height: 30px;
    padding: 10px 0;
  }
  .product-advantage .advantage-content .content-list .item .icon-box {
    margin-top: 10px;
  }
  .product-advantage .advantage-content .content-list .item .text-box {
    width: 73%;
  }
  .product-advantage .advantage-content .content-list .item .bottom-line {
    width: 80%;
    display: block;
  }
  .product-advantage .advantage-content .content-list .item .icon-box {
    width: 112px;
    height: 124px;
  }
  .product-advantage .advantage-content .content-list .item .icon-box img {
    max-width: none;
  }
  .product-third .case-list {
    padding: 32px 40px 0;
  }
  .product-third .case-list .case-item .case-info h3 {
    font-size: 20px;
  }
  .product-third .case-list .case-item .case-info p {
    font-size: 18px;
  }
  .product-third .case-list .case-item .case-info .btn-group a {
    width: 190px;
    height: 45px;
    line-height: 45px;
  }
  .product-third .case-list .case-item .case-info .btn-group .btn-left {
    font-size: 18px;
  }
  .product-third .case-list .case-item .case-info .btn-group .btn-right {
    font-size: 18px;
  }
  .service-section .service-list-group {
    padding: 0 30px;
  }
  .service-section .service-list-group .service-list .service-item {
    width: 118px;
    height: 118px;
    padding: 6px;
  }
  .service-section .service-list-group .service-list .service-item .service-bg img {
    width: 42px;
    height: 42px;
  }
  .service-section .service-list-group .service-list .service-item .service-bg p {
    font-size: 16px;
  }
}
@media (min-width: 1600px) {
  section .section-title {
    font-size: 44px;
  }
  .article-nav .nav .nav-item .nav-link p {
    font-size: 24px;
    line-height: 30px;
  }
  .article-nav .nav {
    padding: 0 15px;
  }
  .product-first {
    padding-bottom: 108px;
  }
  .product-first .first-content .first-content-left {
    width: 55%;
  }
  .product-first .first-content .first-content-right {
    width: 45%;
  }
  .product-first .first-content .first-content-right .title {
    font-size: 30px;
    padding: 30px 15px 20px 20px;
  }
  .product-first .first-content .first-content-right .tedian {
    font-size: 20px;
    padding: 15px;
    margin: 5px 20px;
  }
  .product-first .first-content .first-content-right .canshu {
    padding: 25px 20px;
  }
  .product-first .first-content .first-content-right .canshu .canshu-item p b {
    font-size: 28px;
  }
  .product-first .first-content .first-content-right .product-desc {
    padding: 20px 25px;
  }
  .product-first .first-content .first-content-right .product-btn {
    margin: 30px 20px 0 20px;
  }
  .product-advantage .advantage-content .content-list .item .text-box {
    padding-bottom: 45px;
    width: 78%;
  }
  .product-advantage .advantage-content .content-list .item .text-box h2 {
    font-size: 25px;
  }
  .product-advantage .advantage-content .content-list .item .text-box p {
    font-size: 20px;
  }
  .product-advantage .advantage-content .content-list .item .bottom-line {
    width: 88%;
  }
  .product-advantage .advantage-content .content-middle .advantage-btn {
    bottom: 140px;
    font-size: 20px;
  }
  .product-third .case-list .case-item .case-info h3 {
    font-size: 22px;
  }
  .service-section .service-list-group {
    padding: 0 50px;
  }
  .service-section .service-list-group .service-list {
    width: 47.2%;
  }
  .service-section .service-list-group .service-list .service-item {
    width: 150px;
    height: 150px;
    padding: 8px;
  }
  .service-section .service-list-group .service-list .service-item .service-bg img {
    width: 48px;
    height: 48px;
  }
}