@media screen and (max-width: 1650px) {
  .page-item-top .page-item-left .page-item-content {
    padding-top: 18%;
  }
}

@media screen and (max-width: 1200px) {
  .header .hd-container,
  .pptg-container,
  .container {
    width: 92%;
  }
  .page-banner {
    position: relative;
    padding-bottom: 40%;
    height: 0;
    width: 100%;
    overflow: hidden;
  }
  .page-banner img {
    position: absolute;
    left: 50%;
    top: 0;
    height: 100%;
    transform: translateX(-50%);
    width: auto;
    max-width: unset;
  }
  .index-banner figcaption h2 {
    font-size: 40px;
  }
  .index-banner figcaption small {
    font-size: 16px;
  }
  .index-banner figcaption .video-btn {
    width: 140px;
    height: 40px;
    line-height: 40px;
    margin-top: 2.5%;
    font-size: 12px;
  }
  .index-item .item-list li i {
    width: 70px;
    height: 70px;
    background-size: 40%;
  }
  .index-item .item-list li p {
    padding-top: 30px;
  }
  .index-honor {
    padding: 40px 0;
  }
  .index-honor .honor-item {
    height: 200px;
  }
  .index-honor h4 {
    font-size: 48px;
    margin-top: 25px;
  }
  .index-honor p {
    font-size: 12px;
  }
  .index-honor span {
    font-size: 16px;
  }
  .index-news-list li figcaption h4 {
    font-size: 16px;
    padding: 0 20px;
  }
  .index-news-list li figcaption p {
    padding: 10px 20px;
  }
  .index-news-list li figcaption span {
    padding: 0 20px;
    font-size: 12px;
    display: block;
  }
  .index-news-list li .icon-more {
    width: 46px;
    height: 46px;
    margin-top: -23px;
    margin-left: -23px;
  }
  .index-case .title-style {
    padding: 60px 0 50px;
  }
  .page-title h4,
  .title-style h4 {
    font-size: 30px;
  }
  .index-link .container {
    width: 86%;
  }
  .tab-pic div a p {
    margin-bottom: 10px;
  }
  .tab-pic div a h3 {
    font-size: 22px;
    height: auto;
    line-height: inherit;
  }
  .tab-pic div a > div {
    bottom: 28px;
  }
  .tab-pic div a i {
    width: 30px;
    height: 30px;
  }
  .index-link .title-style {
    padding: 60px 0 50px;
  }
  .footer {
    margin-top: 120px;
  }
  .footer .ft-t li p {
    font-size: 12px;
  }
  .footer .ft-t li span {
    font-size: 16px;
  }
  .footer .ft-t li .tel {
    padding-left: 2px;
    vertical-align: middle;
  }
  .footer .ft-t li i {
    width: 22px;
    height: 22px;
    background-size: cover;
  }
  .footer .ft-r div {
    margin-left: 12px;
  }
  .footer .ft-t li:first-child + li i {
    background-size: auto 22px;
  }
  .footer .ft-t li:first-child + li + li i {
    background-size: 22px auto;
  }
  .about-img-list img:nth-child(2) {
    width: 50%;
  }
  .about-img-list img:nth-child(3) {
    width: 50%;
  }
  .page-title {
    padding: 50px 0 40px;
  }
  .tab-ol {
    height: auto;
  }
  .tab-ol li {
    height: 50px;
    line-height: 50px;
  }
  .tab-ol li a {
    font-size: 16px;
  }
  .about-icon-list li i {
    width: 70px;
    height: 70px;
    border: 10px solid #f5f5f5;
    background-position-x: 22px;
    background-size: auto 28px;
  }
  .about-icon-list li:first-child + li i {
    background-position-x: -110px;
  }
  .about-icon-list li:first-child + li + li i {
    background-position-x: -228px;
  }
  .about-icon-list li p {
    font-size: 16px;
  }
  .page-about .about-content img {
    padding: 30px 0 20px;
  }
  .contact-info .contact-info-right {
    padding-left: 3%;
  }
  .contact-info2 .contact-info-left img {
    padding-left: 25px;
  }
  .page-item-top:hover .page-item-left .page-item-left-wrap {
    left: 30px;
  }
}

@media screen and (max-width: 1100px) {
  .page-item-top .page-item-left {
    width: 50%;
  }
  .page-item-top .page-item-left .page-item-left-wrap {
    width: 75%;
  }
  .page-item-top .page-item-left .page-item-left-wrap .page-item-content {
    padding-top: 25px;
  }
}

@media screen and (max-width: 992px) {
  .index-about img {
    padding-left: 8%;
    width: 12.6667%;
  }
  .view-more {
    width: 130px;
    height: 44px;
    line-height: 44px;
    font-size: 12px;
  }
  .index-about .index-about-article {
    width: 62%;
  }
  .index-item .item-list li i {
    width: 50px;
    height: 50px;
  }
  .index-item .item-list li p {
    padding-top: 10px;
    font-size: 16px;
    padding-bottom: 0;
  }
  .index-item .item-list li span {
    font-size: 12px;
  }
  .tab-pic {
    padding-bottom: 56%;
  }
  .index-honor h4 {
    font-size: 38px;
  }
  .index-honor .honor-item {
    height: 175px;
  }
  .index-case .title-style,
  .index-link .title-style {
    padding: 45px 0 35px;
  }
  .page-title h4,
  .title-style h4 {
    font-size: 26px;
  }
  .footer .ft-m {
    float: right;
  }
  .footer .ft-r {
    padding-top: 40px;
    text-align: center;
    float: none;
    clear: both;
    width: 100%;
    text-align: center;
  }
  .footer .ft-r div {
    float: none;
    display: inline-block;
  }
  .footer .ft-b {
    padding-top: 30px;
  }
  .page-banner {
    padding-bottom: 45%;
  }
  .page-item-top .page-item-left {
    width: 90%;
  }
  .page-item-top .page-item-left .page-item-title .number {
    font-size: 55px;
    height: 30px;
  }
  .page-item-top .page-item-left .page-item-title h4 {
    padding: 4px 0 20px;
    font-size: 20px;
  }
  .page-item-top .page-item-left .page-item-title hr {
    width: 25px;
    height: 2px;
  }
  .page-item-top .page-item-left .page-item-content {
    padding-top: 25px;
  }
  .item-relative-list li figcaption p {
    font-size: 14px;
    bottom: 28%;
  }
  .item-relative-list li figcaption h4 {
    font-size: 16px;
    bottom: 10%;
  }
  .item-relative-list li figcaption i {
    width: 26px;
    height: 26px;
    bottom: 12%;
  }
  .tab-ol {
    padding: 40px 0;
  }
  .page-item-top .page-item-left .page-item-left-wrap {
    width: 90%;
  }
}

@media screen and (max-width: 768px) {
  .index-banner figcaption {
    transform: translateY(-20%);
  }
  .header-nav {
    display: none;
  }
  .menu-btn {
    display: block;
  }
  .index-banner {
    padding-bottom: 50%;
  }
  .index-banner video {
    z-index: -1;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
    height: 100%;
  }
  .index-banner figcaption h2 {
    font-size: 32px;
  }
  .index-banner figcaption small {
    font-size: 14px;
  }
  .index-item .item-list {
    overflow-x: visible;
  }
  .index-item .item-list li {
    float: left;
  }
  .index-honor .honor-item {
    height: 145px;
  }
  .index-honor h4 {
    font-size: 28px;
  }
  .index-honor p {
    margin-bottom: 18px;
  }
  .index-honor span {
    font-size: 14px;
  }
  .index-honor .honor-more {
    display: none;
  }
  .index-honor .honor-item:hover span {
    -webkit-transform: translate(0, 0);
    opacity: 1;
  }
  .index-news-list li .icon-more {
    width: 30px;
    height: 30px;
    margin-top: -15px;
    margin-left: -15px;
  }
  .product-list li {
    width: 33.33334%;
  }
  .list-more {
    font-size: 16px;
    line-height: 50px;
    height: 50px;
  }
  .product-list li figcaption {
    margin-top: -7px;
    font-size: 14px;
    opacity: 1;
  }
  .tab-ol {
    padding: 30px 0;
  }
}

@media screen and (max-width: 740px) {
  .index-link .container {
    width: 80%;
  }
  .index-link .link-carousel img {
    width: 100%;
  }
  .index-honor .honor-item {
    width: 50%;
  }
  .index-about img {
    padding: 0;
    border: 0;
    width: 20%;
    display: block;
    float: none;
    margin: 0 auto 30px;
  }
  .index-about .index-about-article {
    float: none;
    width: 100%;
  }
  .index-item {
    overflow-x: scroll;
    padding-bottom: 42%;
  }
  .index-item .item-list.item-three {
    width: 234%;
  }
  .index-item .item-list.item-three li {
    position: static !important;
    float: left !important;
    width: 33.333334% !important;
    left: 0 !important;
    overflow: hidden;
  }
  .index-item .item-list.item-two {
    width: 156%;
  }
  .index-item .item-list.item-two li {
    position: static !important;
    float: left !important;
    width: 50% !important;
    left: 0 !important;
    overflow: hidden;
  }
  .tab-pic > div {
    width: 50%;
  }
  .tab-pic div:first-child + div {
    left: 50%;
  }
  .tab-pic div:first-child + div + div,
  .tab-pic div:first-child + div + div + div + div + div + div,
  .tab-pic div:first-child + div + div + div + div + div,
  .tab-pic div:first-child + div + div + div + div {
    display: none;
  }
  .tab-pic div a span {
    font-size: 12px;
  }
  .tab-pic div a h3 {
    font-size: 16px;
  }
  .tab-pic div a i {
    width: 20px;
    height: 20px;
  }
  .tab-pic div a > div {
    bottom: 16px;
  }
  .index-news-list li {
    width: 100%;
  }
  .page-item-top .page-item-left {
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .page-item-top .page-item-left .page-item-title h4 {
    padding: 4px 0 7px;
  }
  .page-item-top .page-item-left .page-item-title {
    padding: 0;
  }
  .page-item-top .page-item-left .page-item-content {
    line-height: 21px;
    font-size: 12px;
  }
  .item-relative-list {
    flex-wrap: wrap;
  }
  .item-relative-list li {
    margin: 0 0 20px 0 !important;
    width: 50%;
  }
  .item-relative-list a:hover figcaption p {
    display: none;
  }
  .item-relative-list a:hover figcaption span {
    display: none;
  }
  .item-relative-list a:hover figcaption i {
    display: none;
  }
  .footer {
    margin-top: 75px;
  }
  .footer .ft-t {
    top: -30px;
  }
  .footer .ft-t li {
    line-height: inherit;
    height: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .footer .ft-l {
    overflow: hidden;
    width: 100%;
    text-align: center;
  }
  .footer .ft-r div {
    margin-left: 25px;
  }
  .footer .ft-m {
    width: 100%;
    overflow: hidden;
    padding: 30px 0 0;
    float: none;
    margin: 0;
    clear: both;
    text-align: center;
  }
  .footer .ft-m h4 {
    float: none;
    display: inline-block;
  }
  .footer .ft-t li span {
    font-size: 12px;
  }
  .footer .ft-t li i {
    width: 16px;
    height: 16px;
  }
  .footer .ft-t li:first-child + li i {
    background-size: auto 16px;
    vertical-align: top;
  }
  .footer .ft-t li:first-child + li + li i {
    background-size: 16px auto;
  }
  .footer {
    padding: 100px 0 0;
  }
  .page-news .news-list li {
    width: 49.21%;
    margin-bottom: 25px;
  }
  .contact-form .form-right,
  .contact-form .form-left {
    width: 100%;
  }
  .contact-form .form-right {
    margin-top: 10px;
  }
  .contact-pc {
    display: none;
  }
  .contact-mb {
    display: block;
  }
  .contact-form form .submit {
    margin-top: 25px;
  }
  .contact-mb-l {
    margin-bottom: 30px;
    overflow: hidden;
  }
  .contact-mb-r {
    overflow: hidden;
  }
  .contact-mb-address h4 {
    padding: 20px 0;
    font-size: 22px;
  }
  .contact-mb-address p {
    font-size: 13px;
    line-height: 26px;
  }
  .item-relative-list li img {
    width: 100%;
  }
  .contact-mb-info {
    padding-top: 25px;
    font-size: 13px;
    line-height: 26px;
  }
  .contact-mb-info p {
    float: left;
  }
  .contact-mb-info img {
    float: right;
    margin-top: 42px;
  }
  .item-relative-list li figcaption p {
    bottom: 23%;
  }
  .news-article-img {
    padding-top: 25px;
  }
  .article-title {
    font-size: 18px;
  }
  .article-info {
    font-size: 12px;
  }
  .article-content {
    padding-top: 20px;
    padding-bottom: 30px;
  }
  .article-content img {
    padding: 10px 0;
  }
  .index-item .item-list li i {
    transform: rotate(0deg);
    opacity: 1;
  }
  .page-item-top {
    padding-bottom: 75%;
    height: 0;
    overflow: hidden;
  }
  .page-item-top img {
    position: absolute;
    top: 0;
    width: auto;
    max-width: unset;
    height: 100%;
    left: 0;
  }
  .page-item-top .page-item-left .page-item-left-wrap .page-item-content {
    padding-top: 15px;
  }
}

@media screen and (max-width: 540px) {
  .header .header-logo{
    padding-top: 4px;
  }
  .header{
    height: 36px;
  }
  .nav-mb{
    top: 36px;
  }
  .header .header-logo img{
    height: 20px;
  }
  .index-banner figcaption {
    transform: translateY(-30%);
  }
  .menu-btn i{
    width: 26px;
    height: 2px;
  }
  .menu-btn i.menu-btn-top {
    top: -10px;
  }
  .menu-btn i.menu-btn-bottom {
    bottom: -10px;
  }
  .menu-btn span{
    margin-top: 9px;
    width: 26px;
    height: 2px;
  }
  .index-banner {
    padding-bottom: 60%;
  }
  .index-banner img {
    z-index: 9;
    top: 0;
    left: 50%;
    width: auto;
    max-width: unset;
    height: 100%;
    transform: translateX(-50%);
  }
  .index-banner figcaption h2 {
    font-size: 22px;
    padding: 0 5%;
  }
  .index-banner figcaption small {
    padding: 10px 5% 0;
    display: block;
    font-size: 12px;
  }
  .index-banner figcaption .video-btn {
    width: 110px;
    height: 34px;
    line-height: 34px;
    margin-top: 5%;
    font-size: 12px;
    letter-spacing: 1px;
  }
  .index-banner video{
    width:1px !important;
    height:1px !important;
    display: none;
    opacity: 0;
    visibility: hidden;
  }
  .index-about-article {
    text-align: justify;
  }
  .title-style h4,
  .footer .ft-l h4 {
    font-size: 22px;
  }
  .index-about {
    padding: 35px 0;
  }
  .index-link .owl-prev, .index-link .owl-next {
    width: 22px;
    height: 22px;
    margin-top: -11px;
    left: -26px;
  }
  .index-link .owl-next {
    left: auto;
    right: -26px;
  }
  .index-link .owl-prev:after, .index-link .owl-next:after {
    width: 5px;
    height: 5px;
    margin-left: 9px;
    margin-top: 8px;
  }
  .index-link .owl-next:after {
    margin-left: 6px;
  }
  .index-case .title-style, .index-link .title-style {
    padding: 30px 0;
  }
  .view-more {
    width: 120px;
    height: 40px;
    line-height: 40px;
    font-size: 12px;
  }
  .page-title {
    padding: 35px 0 30px;
  }
  .page-about .about-content {
    padding-bottom: 40px;
  }
  .about-icon-list li p {
    padding-top: 10px;
    padding-bottom: 0;
    font-size: 14px;
  }
  .about-icon-list li i {
    border: 6px solid #f5f5f5;
    box-shadow: 0 0 0 1px #e5e5e5;
  }
  .tab-ol li a {
    font-size: 14px;
  }
  .about-article img {
    padding: 25px 0 30px;
  }
  .about-img-list {
    padding-top: 30px;
  }
  .about-img-list img {
    padding: 0;
  }
  .about-article p,
  .page-about .about-content p {
    font-size: 14px;
  }
  .about-icon-list li span {
    font-size: 12px;
  }
  .page-title h4, .title-style h4 {
    font-size: 22px;
  }
  .page-title hr {
    margin-top: 16px;
  }
  .product-list li {
    width: 50%;
  }
  .list-more {
    font-size: 14px;
    line-height: 45px;
    height: 45px;
  }
  .page-news .news-list li {
    width: 96%;
    float: none;
    margin: 0 auto 25px;
  }
  .contact-form .form-left input {
    line-height: 40px;
    height: 40px;
    font-size: 14px;
  }
  .contact-form .form-right textarea {
    padding: 10px 20px;
    font-size: 14px;
  }
}