@media screen and (min-width: 1024px) {
    .level2 a:hover {
        color: #333333;
    }

    .nav ul li:hover .level2 {
        display: block;
    }

    .language:hover span img {
        transform: rotate(180deg);
    }

    .language:hover .lang {
        display: block;
    }

    .lang a:hover {
        color: #333;
    }
    .application_xq_item{
        height: 510px;
    }
}

@media screen and (max-width: 1800px) {
    .w1720 {
        max-width: 1600px;
    }

    .about1_t p {
        font-size: 16px;
    }

    .about1_tt {
        padding: 25px;
        margin-bottom: 30px;
    }

    .about1_ul {
        margin-bottom: 30px;
    }

    
}

@media screen and (max-width: 1700px) {
    .w1720 {
        max-width: 1500px;
    }

    .buy1_img {
        height: 285px;
    }

    .product_img {
        height: 240px;
    }

    .xq1_r {
        width: calc(50% - 80px);
        padding-left: 50px;
    }

    .about3_l {
        width: 20%;
    }

    .about3_r {
        width: calc(80% - 50px);
    }

    .about2_img {
        height: 275px;
    }
    .news_r, .news_l {
    width: calc(50% - 20px);
}
.news_r.news_list{
        column-gap: 40px;
}
.news_xq_l {
    width: calc(100% - 520px);
}
    .application_text{
        width: 690px;
        padding-left: calc(50% - 750px);
    }
    .application_img {
    height: 465px;
}
.application_text h4{
    font-size: 24px;
}
.application_text p{
    font-size: 14px;
}
.application_src {
    width: 70px;
    height: 70px;
}
    .application_xq_item {
        height: 475px;
    }
        .application_text{
        width: 740px;
        padding-left: calc(50% - 800px);
    }
    .application_xq_img img{
        width: 540px;
    }
}

@media screen and (max-width: 1600px) {
    .w1720 {
        max-width: 1400px;
    }

    .pro_img {
        height: 235px;
    }

    .pro2_tt,
    .pro2_img img {
        height: 275px;
    }

    .buy1_list {
        row-gap: 25px;
        column-gap: 25px;
        padding-top: 30px;
    }

    .buy1_img {
        height: 266px;
    }

    .product_l {
        width: 320px;
    }

    .product_r {
        width: calc(100% - 370px);
    }

    .product_img {
        height: 225px;
    }

    .xq2_box p {
        height: 48px;
    }

    .about1_text p {
        font-size: 14px;
    }
.about4_list,
    .about2_list {
        row-gap: 25px;
        column-gap: 25px;
    }

    .about2_img {
        height: 240px;
    }
        .application_text{
        width: 640px;
        padding-left: calc(50% - 700px);
    }
    .application_xq{
        margin-top: 40px;
    }
        .application_xq_item {
        height: 440px;
    }
        .application_xq_img img {
        width: 420px;
    }
}

@media screen and (max-width: 1500px) {
    .w1720 {
        max-width: 1300px;
    }

    .pro_list {
        padding-top: 30px;
    }

    .waistband .form input {
        width: calc(20% - 120px);
    }

    .buy1_img {
        height: 252px;
    }

    .product_img {
        height: 200px;
    }

    .xq1_r {
        width: calc(50% - 60px);
        padding-left: 30px;
    }

    .xq2_box {
        padding: 20px 15px;
        width: 180px;
    }

    .about2_text p {
        font-size: 14px;
        line-height: 24px;
        height: 48px;
    }

    .about1_text p {
        margin-bottom: 15px;
    }

    .about1_tt p {
        font-size: 14px;
        line-height: 24px;
    }

    .about2_img {
        height: 220px;
    }

    .about3_l ul li p {
        font-size: 16px;
    }
    .news_l .news_text h4,
    .news_r .news_text h4{
        font-size: 16px;
    }
            .application_text{
        width: 590px;
        padding-left: calc(50% - 650px);
    }
    .application_xq_list ul {
    row-gap: 30px;
    column-gap: 30px;
}
}

@media screen and (max-width: 1400px) {
    .w1720 {
        max-width: 1200px;
    }

    .swiper-div h4 {
        font-size: 60px;
        letter-spacing: 5px;
    }


    .jianjiqi_info h1 {
        font-size: 36px;
    }
    .index_tt h1 {
        font-size: 36px;
    }

    .buy1_text h4,
    .pro_list .swiper-slide a h4 {
        font-size: 20px;
        line-height: 40px;
    }

    .buy1_text p,
    .pro_list .swiper-slide a p {
        font-size: 14px;
        line-height: 24px;
    }

    .footer_r ul li h4 a {
        font-size: 16px;
    }

    .footer_l p {
        font-size: 14px;
    }

    .about2_list,
    .about4_list,
    .product_list {
        row-gap: 20px;
        column-gap: 20px;
    }

    .product_l h4 {
        padding: 15px 20px;
    }

    .product_img {
        height: 180px;
    }

    .about4_img {
        width: 209px;
        height: 209px;
    }

    .about4_text {
        width: calc(100% - 249px);
    }

    .about3_l ul li {
        padding: 20px 10px;
        margin-bottom: 15px;
    }

    .about3_img {
        margin-bottom: 10px;
    }

    .about3 {
        padding-bottom: 70px;
    }

    .about2_text {
        padding: 20px;
        padding-bottom: 25px;
    }

    .about2_img {
        height: 200px;
    }
        .about4_text h4 {
    font-size: 20px;
        }
        .news_xq_r {
    width: 400px;
    padding-top: 23px;
}
.news_xq_tt h4,
.news_xq_r h4 {
    font-size: 20px;
}
    .news_xq_l {
        width: calc(100% - 450px);
    }
    .news_xq_tt h6{
        line-height: 24px;
    }
    .news_xq_list a h4{
        font-size: 16px;
    }
    .application_text{
        width: 550px;
            padding-right: 50px;
        padding-left: calc(50% - 600px);
    }
}

@media screen and (max-width: 1300px) {
    .w1720 {
        max-width: 1100px;
    }

    .nav_tt a {
        padding: 0 20px;
    }

    .footer_r {
        width: 66%;
    }

    .footer_r ul li p a,
    .footer_r ul li h4 {
        margin-right: 30px;
    }

    .buy1_img {
        height: 220px;
    }

    .ban h4 {
        font-size: 36px;
    }

    .buy1_text {
        padding: 20px;
    }

    .buy2 {
        padding-top: 0px;
    }

    .product_r {
        width: calc(100% - 310px);
    }

    .product_l {
        width: 270px;
    }

    .xq2_box {
        padding: 20px 15px;
        width: 150px;
    }

    .product_xq1 {
        padding-top: 0px;
    }

    .about2_r h4,
    .about2_text h4 {
        font-size: 20px;
    }

    .about2_r p {
        font-size: 14px;
    }
    .xq1_p.jianjiqi_info {
        font-size: 16px;
    }
    .service_box ul li .service_img{
        width: 90px;
        height: 90px;
    }
        .service_box ul li img {
    margin-top: 54.5px;
}
.news_r .news_img {
    width: 210px;
    height: 130px;
}
.news_r .news_text {
    width: calc(100% - 240px);
}
.news_l .news_img{
    height: 350px;
}
.news{
    padding-top: 20px;
}
.news_r a{
    margin-bottom: 20px;
}
    .news_r, .news_l {
        width: calc(50% - 15px);
    }
        .news_r.news_list {
        column-gap: 30px;
    }
    .news_r.news_list{
        padding-bottom: 20px;
    }
     .application_text{
        width: 500px;
        padding-left: calc(50% - 550px);
    }
    .application_xq_li {
    width: 59px;
    height: 66px
    }
    .application_xq_text {
    width: calc(100% - 80px);
}
}

@media screen and (max-width: 1200px) {
    .w1720 {
        max-width: 1000px;
    }

    .pro_img {
        height: 190px;
    }

    .pro2_text P {
        font-size: 14px;
        line-height: 24px;
    }

    .pro2_text h4 {
        font-size: 20px;
        line-height: 30px;
    }

    .pro2_tt,
    .pro2_img img {
        height: 220px;
    }

    .buy1_img {
        height: 180px;
    }

    .buy1_text {
        padding: 15px;
    }

    .product_list a h4 {
        font-size: 16px;
        margin-top: 10px;
    }

    .product_img {
        height: 150px;
    }

    .xq1_l {
        width: 100%;
    }
    .xq1_l img{
        width: 100%;
        height: auto;
        object-fit: none;
    }
    .xq1_r {
        width: 100%;
    }

    .xq2_box {
        padding: 15px 10px;
        width: 140px;
    }

    .about2_l {
        width: 230px;
        height: 90px;
    }
    .about2_r{
        width: calc(100% - 290px);
    }
    .about3_img {
        height: 30px;
    }

    .about2,
    .about3,
    .about1 {
        padding-top: 10px;
    }

    .about4 {
        padding-top: 10px;
        padding-bottom: 70px;
    }

    .about1_l,
    .about1_r {
        width: 100%;
    }

    .about2_img {
        height: 180px;
    }
.application_box {
    padding-top: 35px;
}
.application_text {
        width: 450px;
        padding-left: calc(50% - 500px);
    }
        .application_img {
        height: 360px;
    }
        .application_src {
        width: 45px;
        height: 45px;
    }
    .application_text p{
        line-height: 24px;
    }
    .application_text p{
        margin-bottom: 25px;
    }
    .application_m span {
    width: 25px;
    height: 25px;
    }
        .application_xq_item {
        height: 350px;
    }
        .application_xq_img img {
        width: 320px;
    }
        .application_xq_list ul {
        row-gap: 20px;
        column-gap: 20px;
    }
}

@media screen and (max-width: 1100px) {
    .w1720 {
        max-width: 900px;
    }

    .nav_tt a {
        padding: 0 15px;
    }

    .header_r {
        width: 100px;
    }

    .swiper-div h4 {
        font-size: 50px;
        letter-spacing: 2px;
        line-height: 66px;
    }

    .swiper-div p {
        font-size: 18px;
        letter-spacing: 3px;
    }

    .swiper-div p::after {
        width: 90px;
    }

    .jianjiqi_info h1 {
        font-size: 30px;
    }
    .index_tt h1 {
        font-size: 30px;
    }
    .pro_img {
        height: 160px;
    }

    .pro_nav ul li span {
        font-size: 14px;
    }

    .pro2_list {
        padding-top: 20px;
    }

    .footer_l ul li {
        margin-right: 10px;
    }

    .footer_l ul li img {
        width: 34px;
    }

    .waistband h4 {
        font-size: 28px;
    }

    .waistband h4 span {
        font-size: 16px;
        padding-left: 5px;
    }

    .waistband .form input {
        width: calc(50% - 40px);
        margin-bottom: 15px;
    }

    .waistband .form input.demand {
        width: calc(50% - 40px);
    }

    .buy1_img {
        height: 166px;
    }

    .product_r,
    .product_l {
        width: 100%;
    }

    .product_img {
        height: 200px;
    }

    .product_l ul {
        display: flex;
        justify-content: flex-start;
        align-items: flex-start;
        flex-wrap: wrap;
    }

    .product_l ul li {
        width: 33.33%;
        position: relative;
    }

    .product_next {
        position: absolute;
        left: 0;
        right: 0;
        width: 100%;
        z-index: 1;
    }

    .product {
        padding-top: 40px;
    }
    .about2_l p {
    margin-left: 10px;
    font-size: 14px;
}
.about2_r {
    padding: 0 9px;
}
    .about2_l {
        width: 180px;
    }
      .about2_r{
        width: calc(100% - 200px);
    }
    .about4_text h4 {
    font-size: 18px;
    padding-bottom: 0px;
    }
    .crumb_nav li {
    margin-left: 10px;
}
.news_xq_r {
        width: 300px;
}
    .news_xq_l {
        width: calc(100% - 340px);
    }
        .application_text {
        width: 400px;
        padding-left: calc(50% - 450px);
    }
}

@media screen and (max-width: 1024px) {
    .w1720 {
        max-width: 800px;
    }

    .nav_but {
        display: flex;
        justify-content: center;
        align-items: center;
        margin-left: 10px;
        z-index: 999;
    }

    .navBtn {
        width: 28px;
        height: 16px;
        position: relative;
        cursor: pointer;
        z-index: 9;
    }

    .navBtn span {
        display: block;
        height: 2px;
        background: #cc6633;
        top: 0px;
        position: absolute;
        width: 100%;
        -webkit-transition: all .3s ease;
        -o-transition: all .3s ease;
        transition: all .3s ease;
    }

    .navBtn span:nth-child(2) {
        top: 7px;
    }

    .navBtn span:nth-child(3) {
        top: 14px;
    }

    .closeNavbtn span:nth-child(1) {
        -webkit-transform: rotate(45deg);
        -ms-transform: rotate(45deg);
        -o-transform: rotate(45deg);
        transform: rotate(45deg);
        top: 10px;
    }

    .closeNavbtn span:nth-child(2) {
        display: none;
    }

    .closeNavbtn span:nth-child(3) {
        -webkit-transform: rotate(-45deg);
        -ms-transform: rotate(-45deg);
        -o-transform: rotate(-45deg);
        transform: rotate(-45deg);
        top: 10px;
    }

    .header_r {
        width: 180px;
    }

    .header_m {
        position: fixed;
        top: 136px;
        left: 0px;
        right: 0px;
        padding: 15px;
        background: #fff;
        display: none;
    }

    .nav {
        max-width: 800px;
        margin: 0 auto;
    }

    .nav ul {
        display: block;
    }

    .nav_tt {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .nav_tt a {
        line-height: 30px;
        padding: 10px 0px;
        display: block;
        width: calc(100% - 30px);
    }

    .nav_tt img {
        display: block;
        width: 16px;
        height: 16px;
    }

    .level2 {
        position: static;
        transform: translateX(0%);
    }

    .level2_list {
        width: 100%;
        padding: 0px;
        border-radius: 0px;
        margin-top: 0px;
    }

    .level2 a {
        text-align: left;
    }

    .nav ul li.current .nav_tt img {
        transform: rotate(180deg);
    }

    .pro {
        padding-top: 60px;
    }

    .jianjiqi_info {
        margin-top: 25px;
    }

    .footer_r {
        display: none;
    }

    .footer_l {
        width: 100%;
    }

    .form .div_form input {
        width: calc(33.33% - 40px);
    }

    .product_img {
        height: 175px;
    }

    .product {
        padding-bottom: 60px;
    }

    .xq2 ul li {
        margin-bottom: 10px;
    }

    .xq1_r h3 {
        font-size: 20px;
        line-height: 35px;
    }
    .pj_div_13 .jianjiqi_info,
    .xq3 ul li p {
        font-size: 14px;
    }

    .xq_t span {
        padding-left: 10px;
    }

    .xq_t {
        font-size: 20px;
    }

    .prSwiper a h4 {
        font-size: 16px;
    }
        .about1_t p {
        font-size: 14px;
        line-height: 24px;
    }
    .about2_l{
        height: 120px;
    }
    .about3_r,
    .about3_l{
        width: 100%;
    }
    .about3_l ul{
        display: grid;
       grid-template-columns: repeat(4, 1fr);
       row-gap: 20px;
        column-gap: 20px;
    }
        .about2_text {
        padding: 10px;
        padding-bottom: 20px;
    }
        .about2_r h4, .about2_text h4 {
        font-size: 18px;
    }
    .about4_list{
               grid-template-columns: repeat(1, 1fr);
    }
    .about2_list {
    margin-top: 30px;
    }
    .contact_box{
        padding-top: 40px;
    }
    .contact_l{
        width: 100%;
            padding-right: 0px;
    }
    .contact_r{
        width: 100%;
                padding-left: 0px;
        padding-top: 40px;
    }
    .contact_r::after{
        display: none;
    }
    .contact{
        padding-bottom: 60px;
    }
        .xq1_p {
        font-size: 14px;
        line-height: 24px;
    }
    .service_box ul li p{
        font-size: 16px;
    }
        .service_box ul li .service_img {
        width: 70px;
        height: 70px;
    }
    .service_box ul li img {
    margin-top: 44.5px;
}
.service{
    padding-bottom: 30px;
}
.news_box {
    padding-top: 40px;
}
.news_r, .news_l{
    width: 100%;
}
.news_l .news_img {
        height: auto;
    }
.news_l{
    margin-bottom: 20px;
}
.news_r.news_list{
    grid-template-columns: repeat(1, 1fr);
}
.news{
    padding-bottom: 70px;
}
.news_xq_l{
    width: 100%;
}
.news_xq_r{
    display: none;
}
.news_xq{
        padding-top: 30px;
    padding-bottom: 70px;
}
.application_img{
    width: 100%;
    height: auto;
}
    .application_text {
        width: 100%;
        max-width: 800px;
        padding: 30px 0px;
        margin: 0 auto;
        padding-bottom: 60px;
    }
    .application_m {
    font-size: 14px;
    }
    .application_xq_list ul{
            grid-template-columns: repeat(1, 1fr);
    }
        .application_xq {
        margin-top: 30px;
    }
    .application_xq1{
        padding-bottom: 40px;
    }
}

@media screen and (max-width: 900px) {

    .nav,
    .application_text,
    .w1720 {
        max-width: 700px;
    }

    .language,
    .h_Top_a a {
        margin: 0 10px;
    }

    .pro {
        padding-bottom: 60px;
    }

    .buy1_list,
    .about2_list,
    .about4_list{
        row-gap: 10px;
        column-gap: 10px;
    }

    .pro_nav {
        padding-top: 20px;
    }

    .buy1_list,
    .pro_list {
        padding-top: 15px;
    }

    .pro2_list {
        padding-top: 10px;
    }

    .pro2_list ul li {
        width: 50%;
    }

    .pro2_tt,
    .pro2_img img {
        height: 280px;
    }

    .jianjiqi_info h1 {
        font-size: 24px;
    }
    .index_tt h1 {
        font-size: 24px;
    }
    .level2 a {
        font-size: 14px;
    }

    .buy1_img {
        height: 130px;
    }

    .buy2 {
        padding-bottom: 60px;
    }

    .product_img {
        height: 150px;
    }

    .product_list {
        row-gap: 10px;
        column-gap: 10px;
    }

    .xq1_text h4 {
        font-size: 16px;
    }

    .xq2 ul {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        row-gap: 20px;
        column-gap: 20px;
    }

    .xq2 ul li {
        margin-bottom: 0px;
    }

    .xq2 ul li:nth-child(2n) {
        display: none;
    }

    .xq2_box {
        width: calc(100% - 20px);
    }
        .application_xq_img img {
        width: 230px;
    }
        .application_xq_item {
        height: 280px;
    }
}

@media screen and (max-width: 800px) {

    .nav,
    .application_text,
    .w1720 {
        max-width: 100%;
        padding-left: 40px;
        padding-right: 40px;
    }

    .h_Top .w1720 h4 {
        display: none;
    }

    .pro_nav ul li {
        margin: 0 20px
    }

    .frightItem,
    .rightImg {
        width: 50px;
        height: 50px;
    }

    .ban h4 {
        font-size: 30px;
    }
    .service_box ul li .service_img {
        width: 50px;
        height: 50px;
    }
        .service_box ul li img {
        margin-top: 34.5px;
    }
}

@media screen and (max-width: 720px) {
    .pro_nav ul li {
        margin: 0 10px;
    }

    .nav,
     .application_text,
    .w1720 {
        max-width: 100%;
        padding-left: 10px;
        padding-right: 10px;
    }
        .about3_l ul {
        row-gap: 10px;
        column-gap: 10px;
    }
    .about2_list{
            grid-template-columns: repeat(1, 1fr);
    }
    .about2_img {
        height: 320px;
    }
    .contact_l .form .div_form input {
        width: 100%;
    }
    .application_xq_list ul li {
    padding: 15px 10px
    }
    .buy1_text p{
        display: block;
    }
}

@media screen and (max-width: 640px) {
    .header_r {
        display: none;
    }

    header,
    header .w1720 {
        height: 80px;
    }

    .header_m {
        top: 116px;
    }

    .fillIn {
        height: 116px;
    }

    .swiper-div h4 {
        font-size: 36px;
        letter-spacing: 2px;
        line-height: 45px;
    }

    .swiper-div p {
        font-size: 14px;
        letter-spacing: 1px;
        padding-bottom: 10px;
    }

    .swiper-div p::after {
        width: 60px;
        height: 1px;
    }

    .pro_img {
        height: 200px;
    }

    .buy1_text h4,
    .pro_list .swiper-slide a h4 {
        margin-top: 10px;
    }

    .pro_nav ul li img {
        display: none;
    }

    .pro_nav ul li {
        margin: 0 8px;
    }

    .pro2_list ul li {
        width: 100%;
    }

    .pro2_list ul li:nth-child(2n) {
        flex-direction: column;
    }

    .waistband h4 {
        font-size: 24px;
        line-height: 30px;
    }

    .waistband .form input {
        width: 100% !important;
    }

    .product_list,
    .buy1_list {
        grid-template-columns: repeat(1, 1fr);
    }

    .buy1_img {
        height: 220px;
    }

    .form .div_form input {
        width: 100%;
    }

    .product_l h4 span {
        font-size: 20px;
        letter-spacing: 0px;
        padding-left: 10px;
    }

    .product_l h4 img {
        width: 36px;
        height: auto;
    }

    .product_l h4 {
        padding: 10px 20px;
    }

    .product_l ul li {
        width: 100%;
    }

    .product_img {
        height: 255px;
    }

    .xq1_r {
        padding: 20px 10px !important;
    }

    .xq2 ul {
        grid-template-columns: repeat(2, 1fr);
    }

    .xq2 ul {
        padding-top: 20px;
    }

    .xq_t {
        font-size: 18px;
    }

    .xq3 ul li p {
        width: 40%;
    }

    .xq3 ul li p:last-child {
        width: 60%;
    }
        .crumb_nav li {
        margin-left: 0px;
    }
    .about1_ul li p {
    font-size: 14px;
    }
        .about2_img {
        height: 215px;
    }
    .about2_r{
        width: 100%;
        padding-top: 15px;
        padding-bottom: 15px;
    }
    .about2_l{
        width: 100%;
    }
    .about3_l ul{
                grid-template-columns: repeat(2, 1fr);
    }
    .about3_l ul li{
        margin-bottom: 0px;
    }
    .about3_l{
        margin-bottom: 15px;
    }
    .about4_img{
        width: 100%;
    }
    .about4_text{
        width: 100%;
        padding: 15px;
    }
    .about3,
    .about2,
        .about4 {
        padding-bottom: 40px;
    }
    .service_box ul{
        justify-content: flex-start;
        margin-bottom: 20px;
    }
        .service_box ul li{
            margin-bottom: 15px;
        }
    .service_box ul li:nth-child(2n){
        margin: 0 15px;
    }
        .news_r .news_img {
        width: 140px;
        height: 87px;
    }
        .news_r .news_text {
        width: calc(100% - 165px);
    }
        .application_xq_item {
        height: 210px;
    }
        .application_xq_img img {
        width: 160px;
    }
}