@media (max-width: 1919px) and (min-width: 1681px) {
    .sus1 .left {
        max-width: 740px;
    }
}
@media (max-width: 1781px) and (min-width: 1681px) {
    .service2 {
    display: flex;
    width: 100%;
    align-items: center;
    padding: 120px 100px;
    background-color: rgba(89, 87, 87, 1);
    gap: 100px;
}
}

@media (max-width: 1680px) and (min-width: 1441px) {
    .sus1 .left {
        max-width: 540px;
    }
}
@media screen and (max-width: 1680px) {
    :root {
        --ft16: 16px;
        --ft20: 20px;
        --ft22: 22px;
        --ft24: 22px;
        --ft25: 22px;
        --ft26: 22px;
        --ft28: 28px;
        --ft30: 30px;
        --ft31: 31px;
        --ft32: 32px;
        --ft33: 33px;
        --ft35: 34px;
        --ft36: 34px;
        --ft38: 38px;
        --ft40: 40px;
        --ft42: 42px;
        --ft44: 44px;
        --ft46: 44px;
        --ft47: 44px;
        --ft48: 44px;
        --ft50: 50px;
        --ft54: 54px;
        --ft60: 60px;
        --ft62: 62px;
        --ft64: 64px;
        --ft66: 66px;
        --ft70: 70px;
        --ft72: 72px;
        --ft76: 72px;
        --ft77: 77px;
        --ft78: 78px;
        --ft80: 76px;
        --ft86: 86px;
        --ft90: 90px;
        --ft96: 96px;
        --ft100: 92px;
        --ft110: 110px;
        --ft120: 120px;
    }

    .team .up .right {
        max-width: 780px;
    }

    .team1_up .left {
        max-width: 760px;
    }

    .team2 .team2_sub {
        max-width: 660px;
    }

    .team2>img {
        max-width: 580px;
    }

    .index_banner .swiper-slide {
        height: 540px;
    }

    .zhichi .left {
        max-width: 700px;
    }

    .index_about {
        gap: 100px;
        margin-top: 100px;
    }

    .index_about .right .right_sub {
        line-height: var(--ft36);
    }

    .index_product {
        margin-top: 100px;
    }

    .zhichi {
        margin-top: 100px;
    }

    .index_corporate {
        margin-top: 100px;
    }

    .index_project {
        margin-top: 100px;
    }

    .xinpin {
        margin-top: 100px;
    }

    .project_nav .up {
        gap: 130px;
    }

    .team .up {
        padding: 100px;
    }
    

    .about1_sub {
        margin-top: 180px;
    }

    .project_con .ftitle {
        margin-top: 80px;
    }

    .guanlian {
        padding: 100px;
    }


    .service2 .left {
        max-width: 780px;
    }

    .service2 .right {
        max-width: 480px;
        gap: 40px;
    }

    .service2,
    .service3,
    .service1 {
        padding: 100px;
        gap: 50px;
    }

}

@media screen and (max-width: 1440px) {
    :root {
        --ft16: 16px;
        --ft20: 20px;
        --ft22: 22px;
        --ft24: 22px;
        --ft25: 22px;
        --ft26: 22px;
        --ft28: 26px;
        --ft30: 26px;
        --ft31: 28px;
        --ft32: 28px;
        --ft33: 32px;
        --ft35: 32px;
        --ft36: 32px;
        --ft38: 36px;
        --ft40: 36px;
        --ft42: 36px;
        --ft44: 40px;
        --ft46: 40px;
        --ft47: 40px;
        --ft48: 40px;
        --ft50: 46px;
        --ft54: 48px;
        --ft60: 56px;
        --ft62: 56px;
        --ft64: 56px;
        --ft66: 56px;
        --ft70: 56px;
        --ft72: 72px;
        --ft76: 66px;
        --ft77: 77px;
        --ft78: 78px;
        --ft80: 60px;
        --ft86: 86px;
        --ft90: 90px;
        --ft96: 96px;
        --ft100: 100px;
        --ft110: 70px;
        --ft120: 120px;
    }

    .team .up .right {
        max-width: 700px;
    }

    .team1_up .left {
        max-width: 640px;
    }

    .team1 .team1_down .right {
        max-width: 820px;
    }

    .team2 .team2_sub {
        max-width: 620px;
    }
    .product_nav{
        top: 170px;
    }
    .index_banner .swiper-slide {
        height: 480px;
    }

    .xinpin {
        margin-top: 80px;
    }

    .zhichi {
        margin-top: 80px;
    }

    .zhichi .left {
        max-width: 630px;
    }

    .zhichi .right .zhichi_sub {
        max-width: 320px;
    }

    .zhichi .right>a {
        margin-top: 60px;
    }

    .index_about .left .zhichi_sub {
        max-width: 300px;
    }

    .index_product,
    .index_corporate,
    .index_project {
        margin-top: 80px;
    }

    .xinpin .right .islatest {
        width: 360px;
    }

    .banner {
        height: 600px;
    }

    .product {
        padding: 80px 100px;
    }

    .product_footer {
        gap: 100px;
        padding: 80px 100px;
    }

    .project_ul {
        padding: 30px 100px;
        gap: 40px;
        grid-template-columns: repeat(4, 1fr);
    }

    .about1_sub {
        margin-top: 100px;
    }

    .about2 .left {
        max-width: 720px;
    }

    .about3 .left {
        max-width: 760px;
    }

    .sus1 .left {
        max-width: 760px;
    }
    .smart1 .right{
        max-width: 540px;
    }
    .about1{
        gap: 50px;
    }
}

@media screen and (max-width: 1280px) {
    :root {
        --ft16: 14px;
        --ft20: 18px;
        --ft22: 18px;
        --ft24: 20px;
        --ft25: 22px;
        --ft26: 22px;
        --ft28: 26px;
        --ft30: 26px;
        --ft31: 28px;
        --ft32: 28px;
        --ft33: 28px;
        --ft35: 30px;
        --ft36: 30px;
        --ft38: 36px;
        --ft40: 36px;
        --ft42: 36px;
        --ft44: 36px;
        --ft46: 36px;
        --ft47: 38px;
        --ft48: 38px;
        --ft50: 40px;
        --ft54: 40px;
        --ft60: 40px;
        --ft62: 40px;
        --ft64: 44px;
        --ft66: 44px;
        --ft70: 46px;
        --ft72: 46px;
        --ft76: 46px;
        --ft77: 46px;
        --ft78: 46px;
        --ft80: 48px;
        --ft86: 50px;
        --ft90: 66px;
        --ft96: 96px;
        --ft100: 70px;
        --ft110: 70px;
        --ft120: 120px;
    }

    .index_banner .swiper-slide {
        height: 384px;
    }
    .product_nav {
        top: 150px;
    }

    .xinpin,
    .zhichi,
    .index_about,
    .index_product,
    .index_project {
        margin-top: 60px;
    }

    .zhichi .left {
        max-width: 480px;
    }

    .zhichi .right>a {
        margin-top: 40px;
        gap: 10px;
        padding: 5px 12px;
    }

    .zhichi .right .zhichi_sub {
        max-width: 280px;
    }

    .zhichi .right .zhichi_title {
        max-width: 280px;
    }

    .index_about {
        gap: 40px;
    }

    .index_about .right .right_sub {
        margin-top: 20px;
    }

    .index_product_list {
        gap: 40px;
        margin-top: 40px;
    }

    .index_corporate_list {
        grid-template-columns: repeat(1, 1fr);
        gap: 10px;
        margin-top: 40px;
    }

    .index_corporate_title {
        top: 50%;
        transform: translate(-50%, -50%);
    }

    .index_project_list {
        margin-top: 40px;
        gap: 30px 40px;
    }

    .banner {
        height: 384px;
    }

    .product_footer {
        gap: 80px;
        padding: 50px 100px;
    }

    .team .up {
        padding: 60px 100px;
    }

    .team1_up .left {
        max-width: 520px;
    }

    .team1_up .right {
        max-width: 420px;
    }

    .team1 .team1_down .right {
        max-width: 660px;
    }

    .project_nav .up .right .pro_nav_wtitle {
        margin-top: 40px;
    }

    .project_nav .up {
        gap: 60px;
    }

    .project_nav .up .right .pro_nav_wtitle {
        margin-top: 40px;
    }

    .about1 .right {
        max-width: 580px;
    }

    .about1_sub {
        margin-top: 100px;
    }

    .about3 .left {
        max-width: 580px;
    }

    .team .up .right {
        max-width: 500px;
    }

    .team1 .team1_down .right {
        max-width: 500px;
    }

    .team1 .team1_down .left .team1_key {
        margin-top: 20px;
        text-align: center;
    }

    .team1 .team1_down .left .team1_title {
        text-align: center;
    }

    .service2 {
        flex-direction: column-reverse;
    }

    .service2 .right {
        max-width: 100%;
        gap: 20px;
    }

    .service2 .left {
        max-width: 100%;
    }

    .service1 .right {
        max-width: 400px;
    }

    .service2 .right .service2_list {
        margin-top: 20px;
    }

    .sus1 .left {
        max-width: 640px;
    }

    .sus1,.sus2 {
        padding: 60px 100px;
    }

    .sus1 .left .sus1_sub ,.sus2 .right .sus2_sub{
        margin-top: 30px;
    }
    .sus2 .right{
        max-width: 640px;
    }
    .sus1{
        flex-direction: column;
        gap: 20px;
    }
    .sus1 .left,.sus2 .right{
        max-width: 100%;
        width: 100%;
    }
    .sus1 .right,.sus2 .left{
        max-width: 100%;
        width: 100%;
    }
    .sus2{
            flex-direction: column-reverse;
    }
    .smart1,.smart2,.about1,.about3{
            flex-direction: column-reverse;
    }
    .smart1 .right,.smart1 .left,.smart2 .left,.smart2 .right,.smart3 .left,.smart3 .right,.smart6 .left,.smart6 .right,.about1 .left,.about1 .right,.about2 .left,.about3 .left{
        width: 100%;
        max-width: 100%;
    }
    .smart6 .right{
        margin-top: 20px;
    }
    .smart1,.smart2,.smart3,.smart6,.about2{
        flex-direction: column;
        padding: 20px 100px;
    }
    .smart3.smart5,.project_nav,.about1,.about2,.about3{
        padding: 20px 100px;
    }
    .project_nav .up{
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    .about2,.about3{
        gap: 20px;
    }
    .pro_nav_wtitle,.about2_sub{
        margin-top: 20px;
    }
    .about1_sub{
        margin-top: 40px;
    }
}

@media screen and (max-width: 996px) {


    .index_about {
        flex-direction: column;
    }

    .product {
        padding: 40px 100px;
    }

    .product_list {
        margin-top: 20px;
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }

    .product_footer {
        grid-template-columns: repeat(1, 1fr);
        gap: 30px;
    }

    .product_fot_sub {
        margin-top: 10px;
    }

    .team .up {
        flex-direction: column;
    }

    .team .up .right {
        max-width: 100%;
    }

    .team1_up {
        flex-direction: column-reverse;
    }

    .team1_up .right {
        max-width: 100%;
    }

    .team1_up .left {
        max-width: 100%;
    }

    .team1 .team1_down {
        flex-direction: column;
        margin-top: 40px;
    }

    .team1 .team1_down .left {
        max-width: 100%;
    }

    .team1 .team1_down .right {
        max-width: 100%;
    }

    .team2 {
        flex-direction: column;
        padding: 40px 100px;
    }

    .about3 {
        padding: 40px 60px;
        gap: 20px;
        flex-direction: column-reverse;
    }
}

@media screen and (max-width: 768px) {

    :root {
        --ft16: 14px;
        --ft20: 18px;
        --ft22: 18px;
        --ft24: 20px;
        --ft25: 22px;
        --ft26: 22px;
        --ft28: 26px;
        --ft30: 26px;
        --ft31: 28px;
        --ft32: 28px;
        --ft33: 28px;
        --ft35: 30px;
        --ft36: 30px;
        --ft38: 34px;
        --ft40: 34px;
        --ft42: 34px;
        --ft44: 36px;
        --ft46: 36px;
        --ft47: 40px;
        --ft48: 38px;
        --ft50: 46px;
        --ft54: 48px;
        --ft60: 30px;
        --ft62: 50px;
        --ft64: 64px;
        --ft66: 40px;
        --ft70: 70px;
        --ft72: 72px;
        --ft76: 40px;
        --ft77: 40px;
        --ft78: 78px;
        --ft80: 40px;
        --ft86: 86px;
        --ft90: 90px;
        --ft96: 96px;
        --ft100: 56px;
        --ft110: 48px;
        --ft120: 50px;
    }

    .hamburger-btn {
        display: flex;
    }

    .hamburger-btn.toggle span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .hamburger-btn.toggle span:nth-child(2) {
        opacity: 0;
        transform: translateX(-10px);
    }

    .hamburger-btn.toggle span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    .nav {
        position: fixed;
        top: -100vh;
        left: 0;
        /* 隐藏在屏幕右侧外 */
        width: 100vw !important;
        height: 100vh !important;
        max-width: 100% !important;

        padding-top: 60px;
        /* 给顶部留空间 */
        transition: all 0.3s ease;
        z-index: 1000;
    }

    .nav.active {
        top: 0;
    }

    .header .nav>ul {
        flex-direction: column;
        font-size: 30px;
        width: max-content;
        margin: 0 auto;
    }

    .xinpin,
    .zhichi,
    .index_about {
        margin-top: 20px;
    }

    .xinpin {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    .zhichi {
        flex-direction: column-reverse;
    }

    .zhichi .left {
        max-width: 100%;
        margin-top: 10px;
    }
    .team .up {
        padding: 60px 50px;
    }

    .zhichi .right .zhichi_title {
        max-width: 100%;
    }

    .zhichi .right .zhichi_sub {
        max-width: 100%;
    }

    .index_about .left>a {
        margin-top: 50px;
        gap: 10px;
    }

    .index_about .left .zhichi_sub {
        max-width: 100%;
    }

    .index_product_list {
        grid-template-columns: repeat(1, 1fr);
        gap: 100px;
        margin-top: 100px;
    }

    .footr_last {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
    }

    .footr_last {
        gap: 10px;
        padding: 10px 50px;
    }

    .footr_last a {
        white-space: nowrap;
    }

    .project_ul {
        padding: 10px 20px;
        gap: 20px;
        grid-template-columns: repeat(3, 1fr);
    }

    .project_list {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px 20px;
    }
    .sus1, .sus2 {
        padding: 60px 40px;
    }

    .project {
        padding: 40px 100px;
    }

    .project_nav .up {
        grid-template-columns: repeat(1, 1fr);
        gap: 10px;
    }

    .project_nav .up .right .pro_nav_wtitle {
        margin-top: 20px;
    }

    .project_nav {
        padding: 30px 50px;
    }

    .team .up {
        flex-direction: column;
    }

    .team1_up {
        flex-direction: column-reverse;
    }

    .team1 {
        padding: 40px 50px;
    }

    .team1_up .left {
        max-width: 100%;
        margin-top: 10px;
    }

    .team1_up .right {
        max-width: 100%;
    }

    .team1 .team1_down {
        margin-top: 40px;
        flex-direction: column;
    }

    .team1 .team1_down .left {
        max-width: 100%;
    }

    .team2 {
        padding: 40px 20px;
        display: flex;
        flex-direction: column;
    }

    .team2 .team2_sub {
        max-width: 100%;
    }

    .team2>img {
        max-width: 100%;
        margin-top: 10px;
    }

    .about1 {
        padding: 40px 50px;
        flex-direction: column-reverse;
    }

    .about1 .right {
        max-width: 100%;
    }

    .about1_sub {
        margin-top: 20px;
    }

    .about1 .left {
        width: 100%;
        margin-top: 20px;
    }

    .about2 {
        padding: 40px 50px;
        flex-direction: column;
        gap: 20px;
    }

    .about2_sub {
        margin-top: 20px;
    }

    .about2 .right,
    .service1 .left,
    .service1 .right {
        max-width: 100%;
    }

    .about3 .left {
        max-width: 100%;
    }

    .danhang {
        grid-template-columns: repeat(1, 1fr);
        margin-top: 20px;
    }

    .duohuang {
        margin-top: 20px;
    }

    .project_con>img {
        margin-top: 50px;
    }

    .service1,
    .service3 {
        flex-direction: column;
        padding: 40px 40px;
    }
    .service2, .service3, .service1 {
        padding: 40px;
    }

    .service4 {
        grid-template-columns: repeat(1, 1fr);
    }

    .service4_box {
        padding: 40px 40px;
    }
    .wenda {
    width: 100%;
    padding: 40px 40px;
    }
        .smart1, .smart2, .smart3, .smart6, .about2 {
        flex-direction: column;
        padding: 20px 40px;
    }
    .smart2.smart4 {
    padding: 0px 40px 40px;
}
.smart3.smart5, .project_nav, .about1, .about2, .about3 {
        padding: 20px 40px;
    }
    .xinpin {
        padding: 0 20px;
    }
    .index_about {
        padding: 0 20px;
    }
    .index_product {
    padding: 0 20px;
    }
    .index_corporate {
    padding: 0 20px;
    }
    .index_project {
    padding: 0 20px 20px;
}
}