@media (max-width: 1580px) {
  .header-wrap .nav-ul-f {
    gap: 20px;
  }

  .header-wrap .logo {
    margin-right: 0;
  }

  .header-wrap .logo img {
    width: 80%;
  }
}

@media (max-width: 1280px) {}

/* -------- <=1024: 平板竖屏/小桌面 -------- */
@media (max-width: 1024px) {
  .product-detail-sec7 .item:first-child .icon-item {
    width: calc((100% - 40px) / 2);
  }
}

/* -------- <=768: 手机横向/常见手机竖屏 -------- */
@media (max-width: 768px) {

  .header-wrap .nav,
  .header-area-r .contact-btn,
  .header-area-r .lang-wrap {
    display: none;
  }

  .mobile-nav {
    display: block;
    box-shadow: 0 2px 4px rgba(0, 0, 0, .08);
  }

  .mobile-nav .ph_l {
    width: 61%;
    height: 100%;
    position: fixed;
    top: var(--header-h);
    left: -61%;
    z-index: 1120;
    overflow: hidden;
    background: #fff;
    color: rgba(255, 255, 255, .6);
    transition: left .3s;
    box-shadow: 0 -1px 4px rgba(0, 0, 0, .08);
  }

  .mobile-nav .ph_l .sign {
    padding: 20px;
    border-radius: 0;
  }

  .mobile-nav .ph_l .sign-wrap {
    gap: 20px;
  }

  .mobile-nav .ph_l .btn-wrap-m {
    margin-top: 20px;
    padding: 20px;
    gap: 20px;
  }

  .mobile-nav .ph_l .btn-wrap-m .btn-lay {
    width: 100%;
    text-align: center;
  }

  .mobile-nav .ph_r {
    display: block;
    width: 40%;
    height: 100%;
    background: rgba(0, 0, 0, .6);
    position: fixed;
    right: -40%;
    top: var(--header-h);
    z-index: 1101;
    transition: right .3s;
    box-shadow: 0 -1px 4px rgba(0, 0, 0, .08);
  }

  .ph_l ul li {
    border-bottom: 1px solid #ccc;
    position: relative;
  }

  .ph_l ul li a {
    padding: 20px;
    color: #000;
    cursor: pointer;
  }

  .ph_l ul li a .img {
    transition: .3s;
  }

  .ph_l ul li a.active .img {
    transform: rotate(90deg);
  }

  .ph_l ul .mobile-nav_secont {
    margin-left: 5px;
  }

  .ph_l ul .mobile-nav_secont a {
    padding: 10px;
  }

  .btn-head-nav-toggle {
    display: block;
    margin-left: 10px;
  }

  .mob-nav-sec {
    margin-bottom: 20px;
    display: none;
  }

  .ph_l ul li .mob-nav-sec a {
    display: block;
    padding: 5px 40px;
  }

  .btn-large-nav-expand {
    display: inherit;
    flex-direction: column;
    cursor: pointer;
  }

  .btn-large-nav-expand i {
    display: block;
    width: 24px;
    height: 2px;
    flex: 0 0 auto;
    background: #000;
    margin-bottom: 4px;
    transition: .5s cubic-bezier(.15, 1, .336, 1)
  }

  .btn-large-nav-expand i:last-of-type {
    margin-bottom: 0
  }

  .btn-large-nav-expand.active i {
    transition: .4s cubic-bezier(.1, .84, .2, 1.4)
  }

  .btn-large-nav-expand.active i:first-of-type {
    transform: translateY(300%) rotate(45deg)
  }

  .btn-large-nav-expand.active i:nth-of-type(2) {
    transform: scaleX(0)
  }

  .btn-large-nav-expand.active i:nth-of-type(3) {
    transform: translateY(-300%) rotate(-45deg)
  }

  .btn-lay.lay2,
  .btn-lay.lay3 {
    height: 45px;
  }

  .index-sec5 .sec-wrap,
  .company-sec1 .panel,
  .product-detail-sec2 .container-thin {
    flex-direction: column;
  }

  .index-sec5 .sec-top,
  .company-sec1 .panel .txt,
  .company-sec1 .panel .pic,
  .innovative-sec1 .item .txt,
  .innovative-sec1 .item .pic,
  .product-detail-sec2 .info-wrap,
  .product-detail-sec2 .swiper-cont {
    width: 100%;
  }

  .index-sec5 .sec-area .ani-map,
  .product-detail-sec2 .swiper-cont {
    margin-top: 30px;
  }

  .index-sec6 .sec-wrap {
    padding: 20px 0;
  }

  .index-sec6 .sec-intro {
    margin-bottom: 10px;
  }

  .company-sec1 .panel .pic {
    position: relative;
    top: unset;
    right: unset;
    transform: unset;
    margin-top: 20px;
  }

  .sec-wrap {
    --padding: 50px;
  }

  .company-sec4 .card-wrap {
    --column: 1;
  }

  .history-sec1 .time-line-cont {
    padding-bottom: calc(var(--px-20-40) * 4);
    padding-left: var(--px-20-40) !important;
    padding-right: var(--px-20-40) !important;
  }

  .innovative-sec1 .item {
    flex-direction: column !important;
  }

  .innovative-sec1 .item:nth-child(even) .txt {
    padding-left: 0;
  }

  .quality-sec1 .card-wrap {
    --column: 1;
  }

  .product-sec1 .swiper-cont .txt .icon {
    border-color: transparent;
  }

  .product-sec1 .catalog-wrap {
    width: 50%;
    height: calc(1520 * var(--px));
  }

  .product-sec1 .swiper-cont .pic {
    padding: max(30px, 5%);
  }

  .product-sec1 .swiper-cont .swiper {
    height: 85%;
  }

  .product-detail-sec5 .item .pic {
    position: relative;
    right: unset;
    top: unset;
    padding: var(--px-20-40);
    height: auto;
    width: 100%;
  }

  .product-detail-sec5 .sec-wrap .item .txt {
    width: 100%;
    min-height: unset;
    padding: var(--px-20-40);
  }

  .sustainability-sec1 .item:last-child {
    flex-direction: column;
  }

  .product-detail-sec6 .card-wrap {
    --column: 1;
  }

  .product-detail-sec7 .sec-wrap .item .pic {
    padding: 0;
  }

  .product-detail-sec7 .sec-wrap .item .txt {
    min-height: unset;
    width: 100%;
  }

  .product-detail-sec7 .sec-area {
    flex-direction: column;
  }

  .product-detail-sec7 .sec-area .item {
    width: 100%;
  }

  .service-sec1 .item,
  .service-sec1 .item:nth-child(even),
  .sustainability-sec1 .item,
  .sustainability-sec1 .item:nth-child(even) {
    flex-direction: column;
  }

  .service-sec1 .item .pic,
  .service-sec1 .item .txt {
    width: 100%;
  }

  .sustainability-sec1 .item .txt,
  .sustainability-sec1 .item:nth-child(odd) .txt,
  .sustainability-sec1 .item:nth-child(even) .txt {
    width: 100%;
    padding: var(--px-20-40);
  }

  .sustainability-sec1 .item .pic {
    position: relative;
    right: unset;
    top: unset;
    height: auto;
    width: 100%;
  }


  .footer-nav {
    display: none;
  }

  .footer-top {
    flex-direction: column;
    gap: 30px;
  }

  footer .follow-us .title {
    text-align: left;
  }

  .other-news .card-wrap {
    --column: 1;
  }

  .other-news .item:not(:last-child)::after {
    content: unset;
  }

  .other-news .txt .intro {
    margin-bottom: 20px;
  }

  .news-top {
    flex-direction: column;
  }

  .news-sec1 .news-top .pic,
  .news-sec1 .news-top .txt {
    width: 100%;
  }

  .news-detail-sec1 .newspaper {
    width: auto;
    margin: 0 var(--main-margin);
  }

  .applications-sec1 .sec-wrap .item {
    padding: 0 var(--main-margin);
  }

  .applications-sec1 .sec-wrap .item .pic {
    width: 100%;
  }
}

@media (max-width: 576px) {
  :root {
    --main-margin: 20px;
    --header-h: 70px;
  }

  body.scrolled header,
  body.scrolled .mobile-nav {
    --header-h: 50px;
  }

  header {
    padding: 0;
    top: 0;
    background-color: #fff;
  }

  .header-wrap {
    height: var(--header-h);
  }

  header .logo {
    height: 100%;
  }

  header .logo img {
    width: 75%;
  }

  .card-wrap {
    --column: 1 !important;
  }

  .index-sec1 .sec-wrap,
  .index-sec1 .sec-area,
  .index-sec2 .change-item {
    flex-direction: column;
  }

  .data-wrap {
    width: 100%;
    margin-left: 0;
    margin-top: 20px;
  }

  .data-wrap .item {
    justify-content: flex-start;
  }

  .data-wrap .icon {
    height: 50px;
    flex-shrink: 0;
  }

  .data-wrap .intro {
    text-align: center;
  }

  .index-sec1 .sec-area .pic {
    width: 100%;
    transform: translateY(0);
  }

  .index-sec1 .sec-area .txt,
  .index-sec2 .catalog-wrap,
  .index-sec2 .node-wrap {
    width: 100%;
  }

  .cell-wrap-3 {
    display: none;
  }

  .index-sec2 .node-wrap {
    padding-left: 30px;
    padding-right: 30px;
  }

  .index-sec2 .node-wrap .swiper-slide {
    margin-right: 0;
    width: auto;
  }

  .index-sec2 .node-wrap .txt span {
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    word-break: break-all;
    margin-right: 10px;
  }

  .index-sec2 .node-wrap .handle-btn {
    bottom: 50%;
    width: 100%;
    transform: translate(0, -50%);
    padding: 0 10px;
    justify-content: space-between;
  }

  .index-sec6 {
    background-size: 155% !important;
  }

  .index-sec3 .container {
    flex-direction: column;
  }

  .index-sec3 .index-news-top .txt,
  .index-sec3 .index-news-top .pic {
    width: 100%;
  }

  .index-sec3 .index-news-top .pic img {
    width: 100%;
    transform: unset;
  }

  .page-nav a {
    font-size: 12px;
    text-align: center;
  }

  .company-sec1 .info-wrap {
    flex-wrap: wrap;
    justify-content: space-around;
    gap: 30px;
    text-align: center;
  }

  .company-sec1 .info-wrap .title {
    justify-content: center;
  }

  .company-sec3 .sec-title {
    font-size: 30px;
  }

  .company-sec3 {
    height: auto;
    padding-bottom: 20px;
  }

  .company-sec3 .sec-top,
  .company-sec3 .panel-wrap,
  .company-sec3 .panel {
    position: relative;
    top: unset;
    left: unset;
  }

  .company-sec3 .sec-top {
    width: 100%;
    height: auto;
  }

  .company-sec3 .panel-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 20px;
  }

  .company-sec3 .panel {
    height: auto;
    width: calc((100% - 5px) / 2);
    left: unset !important;
    top: unset !important;
    padding-top: 70px;
  }

  .history-sec1 .time-line-item {
    position: relative;
    z-index: 1;
  }

  .history-sec1 .time-line-cont {
    width: 90%;
  }

  .history-sec1 .time-line-cont::before,
  .history-sec1 .time-line-cont::after {
    content: unset;
  }

  .product-sec1 .catalog-wrap {
    height: calc(2000 * var(--px));
  }

  .product-sec1 .swiper-cont .swiper {
    height: 75%;
  }

  .product-sec1 .swiper-cont .pic {
    padding: 20px;
  }

  .product-detail-sec1 .para-wrap {
    flex-wrap: wrap;
  }

  .product-detail-sec1 .para-wrap .item {
    width: 45%;
  }

  .action--site-product-detail .page-banner .sec-wrap {
    padding-bottom: calc(2 * var(--padding));
  }

  .product-detail-sec1 .sec-wrap {
    padding: calc(2.5 * var(--padding)) 0 var(--padding);
    flex-direction: column;
  }

  .product-detail-sec1 .sec-top {
    width: 100%;
  }

  .product-detail-sec1 .sec-area {
    width: 100%;
  }

  .applications-sec2 .item {
    width: 100% !important;
  }

  .news-sec1 .sec-top {
    flex-direction: column;
    gap: 30px;
  }

  .news-sec1 .inp-wrap {
    width: 90%;
  }

  .news-sec1 .inp-cont input {
    width: 100%;
    height: 45px;
  }

  .news-sec1 .submit-btn {
    height: 100%;
    right: 0;
  }

  .page-banner {
    height: 20vh;
  }

  .dialog-close {
    width: 30px;
    height: 30px;
    right: 5px;
    top: 5px;
  }

  .dialog-area::-webkit-scrollbar {
    height: 3px;
  }

  footer .privacy {
    flex-direction: column;
    text-align: center;
  }

  .dialog-area img {
    max-width: 300%;
  }
}