@media screen and (max-width: 1600px) {
  .width1600 {
    margin: 0 20px;
  }
}
@media screen and (min-width: 768px) and (max-width: 1280px) {
  .about_1_left_img {
    width: 35% !important;
  }
  .about_1_right {
    width: 61% !important;
    padding-top: 0vw !important;
  }
  .about_1_right .about_1_right_top > div:nth-child(2) {
    padding-bottom: 0 !important;
  }
  .about_1_right .about_1_right_top > div:nth-child(3) {
    font-size: 16px !important;
    line-height: 20px !important;
  }
  .about_1_right .about_1_right_bottom {
    padding-top: 2vw;
  }
}
@media screen and (max-width: 768px) {
  header {
    position: sticky;
    background: #000;
    z-index: 33;
  }
  header .nav {
    height: auto;
  }
  header .nav .logo {
    width: 50px;
    padding: 5px 0;
  }
  header .nav .mobile_menu_ico {
    display: block;
  }
  header .nav .menu {
    display: none;
  }
  .banner .bannerSwiper .swiper-pagination {
    padding: 5px;
    left: 50%;
    transform: translateX(-50%);
  }
  .banner .bannerSwiper .swiper-pagination-bullet {
    width: 8px;
    height: 8px;
    margin: 0 5px !important;
  }
  .z_banner {
    height: 40vw;
  }
  .z_banner img {
    height: 100%;
    -o-object-fit: cover;
       object-fit: cover;
  }
  .z_banner .info {
    bottom: 50%;
    text-align: center;
    font-size: 60px;
    transform: translate(-50%, 37%);
  }
  .about {
    border-radius: 10px;
  }
  .about .about_1 {
    padding-top: 0;
  }
  .about .about_1 .about_1_left_img {
    display: none;
  }
  .about .about_1 .about_1_right {
    width: 100%;
  }
  .about .about_1 .about_1_right .about_1_right_top > div:nth-child(1) {
    font-size: 30px;
  }
  .about .about_1 .about_1_right .about_1_right_top > div:nth-child(2) {
    font-size: 18px;
    line-height: 8vw;
  }
  .about .about_1 .about_1_right .about_1_right_top > div:nth-child(3) {
    font-size: 16px;
    line-height: 20px;
  }
  .about .about_1 .about_1_right .about_1_right_bottom {
    display: none;
  }
  .about .about_2 {
    padding: 10px;
    flex-wrap: wrap;
  }
  .about .about_2 .item {
    display: flex;
    padding-bottom: 20px;
  }
  .about .about_2 .item img {
    height: 60px;
    padding-top: 10px;
    padding-right: 5px;
  }
  .about .about_2 .item .r > div:nth-child(1) {
    font-size: 40px;
  }
  .about .about_2 .item .r > div:nth-child(1) sup {
    font-size: 20px;
  }
  .about .about_2 .item .r > div:nth-child(2) {
    font-size: 16px;
  }
  .choose {
    padding-top: 30px;
  }
  .choose .choose_top {
    display: block;
  }
  .choose .choose_top div:nth-child(1) {
    font-size: 22px;
    line-height: 25px;
  }
  .choose .choose_top div:nth-child(2) {
    padding-top: 10px;
    text-align: left;
  }
  .choose .choose_bottom {
    flex-wrap: wrap;
    gap: 20px;
    padding-top: 30px;
  }
  .choose .choose_bottom .item {
    flex: none;
    width: 100%;
    padding: 10px 10px 20px 10px;
  }
  .choose .choose_bottom .item .img {
    height: 60px;
  }
  .choose .choose_bottom .item .img img {
    height: 100%;
  }
  .choose .choose_bottom .item .t {
    padding-top: 10px;
    font-size: 16px;
    line-height: 22px;
    height: 40px;
  }
  .choose .choose_bottom .item .d {
    padding-top: 10px;
    font-size: 14px;
  }
  .our_product {
    padding-top: 30px;
  }
  .our_product .rt {
    font-size: 22px;
    line-height: 24px;
  }
  .our_product .p_li {
    padding-top: 30px;
    gap: 10px;
  }
  .our_product .p_li .b {
    gap: 10px;
    flex-wrap: wrap;
  }
  .our_product .p_li .b .item {
    flex: none;
    width: 100%;
  }
  .our_product .p_li .b,
  .our_product .p_li .l,
  .our_product .p_li .r {
    gap: 10px;
    width: 100%;
  }
  .our_product .p_li .b span,
  .our_product .p_li .l span,
  .our_product .p_li .r span {
    font-size: 22px;
  }
  .our_product .p_li .b .svg,
  .our_product .p_li .l .svg,
  .our_product .p_li .r .svg {
    right: 10px;
    bottom: 0px;
  }
  .our_product .p_li .b .svg img,
  .our_product .p_li .l .svg img,
  .our_product .p_li .r .svg img {
    width: 15px;
  }
  .home_logo {
    margin-top: 30px;
    padding-bottom: 30px;
  }
  .home_logo .t1 {
    font-size: 22px;
    line-height: 24px;
  }
  .home_logo .t2 {
    padding-top: 10px;
    font-size: 16px;
    line-height: 20px;
  }
  .home_logo .home_logo_swiper {
    height: 240px;
    padding: 20px 0;
    margin: 0;
  }
  .home_logo .swiper-pagination .swiper-pagination-bullet {
    width: 8px;
    height: 8px;
    margin: 0 5px !important;
  }
  .our_dynamic {
    padding-top: 20px;
  }
  .our_dynamic .rt {
    font-size: 22px;
    line-height: 24px;
    padding-bottom: 10px;
  }
  .our_dynamic .list {
    flex-direction: column;
    flex-wrap: wrap;
    gap: 0;
  }
  .our_dynamic .list .item {
    margin-bottom: 20px;
    width: 100%;
  }
  .our_dynamic .list .item .d {
    display: none;
  }
  .our_dynamic .list .item:nth-child(2n) .t {
    -webkit-line-clamp: 2;
  }
  .our_dynamic .more {
    justify-content: center;
    padding: 0 0 30px 0;
  }
  .feedback .ti {
    font-size: 24px;
  }
  .feedback .ti span {
    display: block;
  }
  .feedback .list {
    height: auto;
    padding-top: 30px;
  }
  .feedback .list .swiper-wrapper {
    flex-direction: row;
    flex-wrap: nowrap;
    padding-bottom: 20px;
  }
  .feedback .list .item {
    margin-right: 20px;
    width: 250px;
    height: auto;
    padding: 10px;
  }
  .feedback .list .item .t {
    font-size: 14px;
  }
  .feedback .list .item .t .img {
    margin-right: 10px;
    width: 50px;
  }
  .feedback .list .item .b {
    font-size: 14px;
    line-height: 20px;
  }
  .feedback .list .item:nth-child(2n+1) {
    margin-left: 0;
  }
  .feedback .list .item:nth-child(2n) {
    margin-left: 0;
    margin-top: 0;
  }
  footer .footer_log {
    display: none;
  }
  footer .footer_it {
    flex-direction: column;
  }
  footer .footer_it .l {
    width: 100%;
  }
  footer .footer_it .l .contact {
    font-size: 24px;
  }
  footer .footer_it .l .input {
    display: flex;
    flex-direction: column;
  }
  footer .footer_it .l .input input {
    margin-top: 10px;
    width: 100%;
    line-height: 35px;
  }
  footer .footer_it .l textarea {
    margin-top: 15px;
  }
  footer .footer_it .l .tz {
    flex-direction: column;
    padding-top: 20px;
  }
  footer .footer_it .l .tz .submit1 {
    line-height: 45px;
    height: 45px;
    font-size: 18px;
    width: 100%;
    display: block;
  }
  footer .footer_it .l .tz .submit {
    display: none;
    line-height: 40px;
  }
  footer .footer_it .l .tz .svg {
    padding-top: 30px;
    gap: 30px;
  }
  footer .footer_it .c {
    display: none;
  }
  footer .footer_it .r {
    padding-top: 30px;
    width: 100%;
  }
  footer .footer_it .r .tt {
    font-size: 24px;
  }
  footer .footer_it .r .qr img {
    width: 40%;
  }
  .news_page .list {
    flex-direction: column;
  }
  .news_page .list .item {
    width: 100%;
  }
  .news_page .list .img {
    height: 226px;
  }
  .contact_page .cp .l {
    min-width: 0;
    width: 100%;
  }
  .contact_page .cp .l .t1 {
    font-size: 24px;
  }
  .contact_page .cp .l .t2 {
    font-size: 18px;
    padding-bottom: 10px;
  }
  .contact_page .cp .l .input1 {
    flex-direction: column;
    gap: 10px;
    padding-top: 10px;
  }
  .contact_page .cp .l .input1 div {
    width: 100%;
  }
  .contact_page .cp .l .input1 input {
    width: 100%;
  }
  .contact_page .cp .l .textarea {
    padding-top: 10px;
  }
  .contact_page .cp .l .submit .btn {
    width: 100%;
    display: block;
    text-align: center;
  }
  .about_page .tt1 {
    padding: 0;
    flex-direction: column;
  }
  .about_page .tt1 .img {
    width: 100%;
  }
  .about_page .tt1 .rr {
    padding-top: 20px;
  }
  .about_page .tt1 .rr .rr1 {
    font-size: 18px;
    display: none;
  }
  .about_page .tt1 .rr .rr2 {
    font-size: 30px;
  }
  .about_page .tt1 .rr .rr3 {
    font-size: 20px;
    padding-bottom: 10px;
    margin-bottom: 20px;
  }
  .about_page .tt1 .rr .rr4 {
    line-height: 25px;
  }
  .about_page .tt2 {
    padding-top: 25px;
    flex-wrap: wrap;
    padding-left: 0;
    gap: 30px;
  }
  .about_page .tt2 .item {
    flex: none;
    width: calc(50% - 15px);
    text-align: center;
  }
  .about_page .tt2 .item1 {
    font-size: 32px;
  }
  .about_page .tt2 .item1::before {
    display: none;
  }
  .about_page .tt2 .item2 {
    padding-left: 0;
  }
  .about_page .tp2 {
    padding: 50px 0;
  }
  .about_page .rt1 {
    font-size: 24px;
    padding-bottom: 10px;
  }
  .about_page .rt1::before {
    width: 18%;
  }
  .about_page .rt3 {
    flex-direction: column;
  }
  .about_page .rt3 .l {
    width: 100%;
  }
  .about_page_1 {
    padding-top: 0px;
  }
  .about_page_1 .pt1 {
    font-size: 22px;
  }
  .about_page_1 .pt2 {
    font-size: 16px;
  }
  .about_page_1 .pt3 {
    line-height: 22px;
    padding-top: 140px;
  }
  .about_page_2 .bt {
    width: 100%;
  }
  .about_page_2 .bt1 {
    font-size: 24px;
    padding-bottom: 10px;
  }
  .about_page_2 .bt1::before {
    width: 18%;
  }
  .about_page_2 .bt2 {
    font-size: 18px;
    line-height: 25px;
  }
  .about_page_2 .contact_map {
    padding: 20px 20px 120px 20px;
  }
  .about_page_2 .contact_map .cm1 {
    font-size: 24px;
    padding-bottom: 10px;
  }
  .about_page_2 .contact_map .cm1::before {
    width: 18%;
  }
  .about_page_2 .contact_map .cm2 {
    width: 100%;
    line-height: 25px;
  }
  .about_page_2 .contact_map .cm3 {
    line-height: 20px;
    font-size: 14px;
    bottom: 20px;
    left: 20px;
    right: 20px;
    padding: 10px 20px;
  }
  .product_detail_page .ptt {
    flex-direction: column;
    padding-top: 30px;
  }
  .product_detail_page .ptl {
    width: 100%;
  }
  .product_detail_page .product_min_image {
    height: 60px;
  }
  .product_detail_page .ptr {
    box-shadow: 0 0 0 0;
    margin-left: 0;
    width: 100%;
    padding: 20px 0;
  }
  .product_detail_page .ptr .ptr1 {
    flex-direction: column;
    align-items: flex-start;
  }
  .product_detail_page .ptr .ptr1 .l {
    padding-bottom: 10px;
    width: 100%;
  }
  .product_detail_page .ptr .ptr1 .l div:nth-child(1) {
    font-size: 18px;
  }
  .product_detail_page .ptr .ptr1 .l div:nth-child(2) {
    font-size: 18px;
  }
  .product_detail_page .ptr .ptr1 .r {
    font-size: 16px;
  }
  .product_detail_page .ptr .ptr1 .r img {
    height: 20px;
  }
  .product_detail_page .ptr .ptr3 .b {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .product_detail_page .ptr .ptr4 .b {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .product_detail_page .ptka .t,
  .product_detail_page .ptdd .t {
    font-size: 22px;
  }
  .product_detail_page .ptka .t img,
  .product_detail_page .ptdd .t img {
    height: 25px;
  }
  .product_detail_page .ptka .pt_table {
    margin: 20px 0 30px 0;
  }
  .product_detail_page .ptka .pt_tabs {
    white-space: nowrap;
    overflow-x: auto;
  }
  .product_detail_page .ptka .pt_tab {
    display: inline-flex;
  }
  .product_detail_page .ptka .pt_tab .item {
    padding: 10px 20px;
    font-size: 14px;
  }
  .product_detail_page .ptka .pt_tab_content {
    padding: 10px 10px 20px 10px;
  }
  .product_detail_page .ptdd .b {
    padding-top: 20px;
  }
  .product_page {
    flex-direction: column;
  }
  .product_page .category {
    width: 100%;
    margin-right: 0;
    padding: 20px;
    margin-bottom: 20px;
  }
  .product_page .category .title {
    padding-bottom: 10px;
    cursor: pointer;
  }
  .product_page .product_right .product_list {
    flex-direction: column;
  }
  .product_page .product_right .product_list .item {
    width: 100%;
  }
  .product_page .product_right .product_list .item .title {
    height: auto;
  }
}