@media (max-width: 1440px) {
  /* :root {
    --custom-size: 1 / 1920 * 100vw * 1.2;
  } */
}

@media (max-width: 1380px) {
  /* :root {
    --custom-size: 1 / 1920 * 100vw * 1.2;
  } */

  .chat-wrap {
    width: 64.67%;
  }

  .contact_us-sec1 .pannel-item .txt {
    padding: 5%;
  }

  .footer-center {
    width: 75%;
  }

  .sustainable-development-container .pdf-item {
    width: calc((100% - 40px) / 3);
  }
}

@media (max-width: 1080px) {
  .sec1 .container .left {
    width: 55%;
  }

  .sec1 .container .right {
    width: 45%;
  }

  .sec1 .container .left .handle {
    margin-top: var(--custom-size-20-40);
  }

  .download_help-wrap {
    padding: 0;
  }

  .footer-cont {
    display: none;
  }

  .download_help-sec1 .down-list .icon {
    width: 30%;
  }

  .contact_us-sec1 .pic {
    padding: 5%;
  }

  .HeaderNav {
    display: none;
  }

  .headerBox .function .right {
    margin: 0 20px;
  }

  .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: 60px;
    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_r {
    display: block;
    width: 40%;
    height: 100%;
    background: rgba(0, 0, 0, .6);
    position: fixed;
    right: -40%;
    top: 60px;
    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 svg {
    transition: .3s;
  }

  .ph_l ul li a.active svg {
    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: #333;
    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)
  }

    .sustainable-development-container .pdf-item {
      width: calc((100% - 20px) / 2);
    }
}

@media (max-width: 780px) {
  .section {
    height: auto;
  }

  .index-banner .swiper-slide {
    padding: 30% 0;
  }

  .roll {
    bottom: 6%;
  }

  .index-sec-cont {
    padding: clamp(30px, 120* var(--custom-size), 120px) 0;
  }

  .sec1 .container {
    flex-direction: column;
  }

  .sec1 .container .left,
  .sec1 .container .right {
    width: 100%;
    margin-bottom: var(--custom-size-20-40);
  }

  .product_detail-sec4 {
    padding: 20% 0;
  }

  .side-cont {
    width: 40px;
  }

  .side-cont p {
    font-size: 9px;
  }

  .move-top {
    padding: 14px 2px 10px;
    bottom: 5px;
  }

  .product_detail-sec6 .intro-wrap {
    flex-direction: column;
  }

  .product_detail-sec6 .intro-item {
    padding: var(--custom-size-10-20);
  }

  .product_detail-sec6 .intro-item:last-child {
    margin-top: var(--custom-size-10-20);
  }

  .robot-sec1,
  .login-sec1 {
    height: calc(100vh - var(--header-h));
  }

  .chat-wrap {
    width: 100%;
  }

  .choose-wrap {
    display: none;
  }

  .copyright .main {
    flex-direction: column;
  }

  .copyright p {
    text-align: center;
  }

  .data-wrap {
    gap: 10%;
  }

    .sustainable-development-container .pdf-item {
      width: 100%;
    }
}

@media (max-width: 560px) {
  .main {
    margin: 0 10px;
  }

  .sec2 .filter {
    flex-direction: column;
  }

  .document-wrap .card-wrap {
    --column: 1;
  }

  .kind .select-wrap .select-options {
    border-radius: 5px;
  }

  .kind .select-wrap:last-child .select-options {
    right: -130px;
  }

  .select-options ul li {
    font-size: 12px;
  }

  .document-wrap .item .pic {
    flex-grow: 1;
    margin-left: 5px;
  }

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

  .sec3 .sec-top .intro {
    width: 100%;
  }

  .product-sec3 .pannel-item {
    flex-direction: column;
  }

  .product-sec3 .pannel-item .pic {
    width: 100%;
    height: 25vh;
  }

  .product-sec3 .pannel-item .txt {
    width: 100%;
  }

  .nav-top .name,
  .nav-top .switch .btn {
    font-size: 14px;
  }

  .product_detail-sec2 .items {
    flex-wrap: wrap;
  }

  .product_detail-sec2 .item {
    width: 50%;
  }

  .product_detail-sec2 .item:nth-child(2n+1) {
    border-left: 0;
  }

  .product_detail-sec5 .pannel .pannel-item:nth-child(2n) {
    flex-direction: column;
  }

  .product-sec3 .pannel-item .txt {
    padding: 20px;
  }

  .product_detail-sec5 .pannel .pannel-item:nth-child(2n+1) .txt {
    justify-content: start;
  }

  .product_detail-sec5 .item:nth-child(2n) {
    padding-left: 10px;
  }

  .product_detail-sec6 .pannel .txt {
    justify-content: start;
  }

  .product_detail-sec9 .card-wrap .item {
    width: 100%;
  }

  .product_detail-sec10 .swiper-slide {
    width: 80%;
  }

  .chat-cont {
    height: 78.6%;
    padding: 20px 10px;
  }

  .chat-item-type-1 .txt {
    font-size: 12px;
  }

  .headerBox .logo img {
    width: 100px;
  }

  :root {
    --header-h: 60px;
  }

  .quiz-cont .textarea {
    height: 100px;
  }

  .quiz-cont .submit {
    width: 100%;
  }

  .side-wrap {
    top: 78%;
  }

  .index-banner .swiper-pagination.swiper-pagination-bullets {
    padding: 5px;
  }

  .index-banner .swiper-pagination-bullet {
    height: 3px;
  }

  .sec1 .left .intro h1 span {
    height: 24px;
  }

  .sec3 .card-wrap {
    --column: 2;
  }

  .sec3 .card-wrap .item:nth-child(2n) {
    margin-right: 0;
  }

  .swiper-button-custom svg {
    width: 50%;
  }

  .download_help-sec1 .pannel-item .pic {
    height: 30vh;
  }

  .index-banner .main .title {
    margin: var(--custom-size-10-20) 0;
  }

  .chat-item-type-1 .card-wrap .item .icon img {
    width: 80%;
  }

  :not(html, body)::-webkit-scrollbar {
    width: 3px;
  }

  .headerBox .function .right .lang {
    box-shadow: 0px 3px 10px 0px rgba(0, 0, 0, .05);
  }

  .product-sec4 .pannel-item .intro p:last-child span:first-child::before {
    content: unset;
  }

  .product-sec4 .pannel-item .intro p:last-child span:last-child {
    position: relative;
  }

  .product-sec4 .pannel-item .intro p:last-child span:last-child::before {
    content: '';
    background-color: var(--theme-color);
    width: 100%;
    height: 1px;
    position: absolute;
    bottom: -1px;
    left: 0;
  }

  .product_detail-sec7 .item {
    padding: 6px;
  }

  .product_detail-sec7 .item .txt {
    font-size: 14px;
  }

  .contact_us-sec1 .pannel-item .pic {
    height: auto;
  }

  .contact_us-sec1 .form .item {
    width: 100%;
    margin-right: 0;
  }

  .contact_us-sec2 .card-wrap {
    --column: 1;
  }

  .contact_us-sec2 .card-wrap .item {
    margin-right: 0;
  }

  .contact_us-sec1 .submit {
    margin-top: 20px;
  }

  .parameter-sec2 {
    padding: var(--custom-size-20-40);
  }

  .parameter-sec2 p span:first-child {
    min-width: unset;
    width: 120px;
    flex-shrink: 0;
  }

  .parameter-sec2 p {
    display: flex;
  }

  .product_detail-sec .pannel .pannel-item:nth-child(2n+1) .txt .txt-wrap {
    max-width: 100%;
  }

  .open-mobile-tree {
    display: flex;
  }

  .tree {
    width: 100%;
    height: 76vh;
    position: fixed;
    z-index: 999;
    left: 0;
    bottom: 0;
    padding-top: 20px;
    padding-bottom: 50px;
    transition: .3s;
    transform: translateY(100%);
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
  }

  .tree.active {
    transform: translateY(0);
  }

  .tree::after {
    content: '';
    width: 100%;
    height: 20px;
    background-color: #fff;
    position: fixed;
    bottom: 76vh;
    left: 0;
  }

  .close-mobile-tree {
    width: 100%;
    height: 50px;
    position: fixed;
    left: 0;
    bottom: -1px;
    background: var(--theme-color);
    color: #fff;
    box-shadow: 0 0 8px 0 #ccc;
    display: none;
    z-index: 1000;
  }

  .tree-cover {
    width: 100%;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, .6);
    z-index: 998;
    display: none;
  }

  .close-mobile-tree.active,
  .tree-cover.active {
    display: flex;
  }

  .document-wrap .item {
    margin-right: 0 !important;
  }

  .tree::-webkit-scrollbar {
    display: none;
  }

  .data-wrap {
    gap: 10px;
  }

  .location-info {
    font-size: 14px;
  }

  .location-wrap .icon {
    width: 40px;
  }

  .about_us-sec3 .pannel-item .pic {
    height: auto;
  }
}