@media (min-width: 1920px) {
    .section1 img,
    .index .banner .item img{
        width: 100%;
    }
}
@media (min-width: 1400px) {
    .container {
        max-width: 1350px;
    }

    .owl-carousel .owl-nav .owl-prev {
        left: 160px;
    }

    .owl-carousel .owl-nav .owl-next {
        right: 160px;
    }
}

@media (min-width: 2560px) {
    .index .banner .it1 {
        top: 29%;
        left: 22%;
    }

    .index .section3 {
        background-size: cover;
    }
}

@media (max-width: 1920px) {
    .index .banner .it1 {
        top: 15%;
        left: 7%;
    }
}

@media (max-width: 1399px) {
    .index .section3 .box3 .s3-img1 {
        left: -65%;
    }

    .about-page3 .section2 .right-box .content-box .img-box .text-box > div {
        font-size: 45px;
        line-height: 55px;
    }
}

@media screen and (max-width: 1199px) {
    header .menu .dropdown{
        left: 5px;
    }
    header .menu .dropdown a{
        padding: 5px 15px;
    }
    header .menu > li > a {
        margin: 18px 0px 18px 25px;
        font-size: 14px;
    }
    footer .footer-top .input-box .email {
        width: 80px;
    }

    footer .footer-top .input-box .send {
        font-size: 14px;
    }

    .index .section3 .box3 .s3-img1 {
        left: -45%;
        top: 45%;
    }

    .index .section1 .banner .item .text-content .banner-title{
        font-size: 45px;
    }

    .index .section1 .banner .item .text-content p{
        font-size: 16px;
    }


    /* news detail start  */
    .news-detail-page .section2 .text-content > p {
        margin-top: 0px;
    }

    /* news detail end */
    /* yewu about start*/
    .about .section2 .menu-box .menu-list > li > a,
    .yewu .section2 .menu-box .menu-list > li > a {
        font-size: 17px;
    }

    .about .section2 .menu-box .menu-title,
    .yewu .section2 .menu-box .menu-title {
        font-size: 1.25rem;
    }


    /* yewu about end*/
    .about-page3 .section2 .right-box .content-box .img-box .text-box > div {
        font-size: 35px;
        line-height: 45px;
    }
}

@media screen and (max-width: 1075px) {
    .index .section1 .banner .item .text-content .b-title3 {
        font-size: 52px;
        top: 12%;
        left: 20%;
    }
}

@media screen and (max-width: 1024px) {
    header .menu > li > a:hover:before, header .menu > li.active:before {
        left: 20%;
    }

    .index .section1 .about-img {
        left: 46px;
    }

    .project30-page .nav-link {
        font-size: 25px;
    }

    .index .banner .it1 {
        top: 9%;
        width: 80%;
    }

    /* news-detail start   */
    .news-detail-page .section1 .title {
        font-size: 38px;
    }

    /* news-detail end   */

}

@media screen and (max-width: 991px) {
    header .h-r .dropdown .dropdown-menu .dropdown-item{
        padding: 5px;
    }
    header .menu .dropdown{
        background: #f1f1f1;
        position: relative;
        display: none;
        transition: all 0.4s;
        border: none;
    }
    header .menu li:hover .dropdown {
        max-height: 260px;
        border: none;
    }
    header .menu .open-dropdown .dropdown{
        display: block;
        overflow: auto;
        max-height: 300px;
    }
    header .logo img {
        max-height: 100px;
    }
    header .menu > li.active:before {
        left: 7px;
        transform: none;
    }

    header .menu > li > a {
        display: inline-block;
        margin: 10px 6px;
        /*padding: 10px 6px;*/
    }

    header .menu {
        display: none;
    }

    header .header-menu .row {
        justify-content: space-between;
    }

    header .header-top .h-l {
        justify-content: space-between;
    }

    header .header-top .container .h-l .company-name {
        margin-right: 20px;
    }

    footer {
        padding-top: 0;
    }

    footer .footer-top {
        padding: 20px 0;
    }

    footer .foot-c {
        margin: 30px 0 20px;
    }

    footer .footer-top {
        margin-bottom: 0;
    }

    footer .footer-top .input-box {
        margin: 20px 15px;
    }

    footer .footer-top .input-box .email {
        width: 180px;
    }

    footer .copy {
        justify-content: center;
    }

    .index .section1 img {
        width: 100%;
    }

    .index .section1 .banner .item .text-content p{
        font-size: 14px;
        white-space: nowrap;
    }

    .index .section1 .banner .item .text-content .banner-title2 {
        font-size: 80px;
    }

    .index .section1 .banner .item .text-content .b-title1 {
        margin: 15px 0;
        font-size: 20px;
    }

    .index .section1 .banner .item .text-content .b-title2 {
        font-size: 20px;
    }

    .index .section1 .banner .item .text-content .b-title3 {
        font-size: 45px;
        top: 16%;
        left: 22%;
    }

    .index .section3 .box3 .s3-img1 {
        display: none;
    }

    .index .section3 .box3 .icons > div {
        margin-bottom: 10px;
    }

    .index .section4 .box2 .title {
        font-size: 18px;
    }

    .index .section4 .box2 .card-text {
        font-size: 14px;
    }

    /* contact start   */
    .contact-page .section2 .info-box {
        padding-left: 35px;
    }

    .contact-page .section2 .img-right {
        flex-direction: column-reverse;
    }

    /* contact end   */
    /* news-detail start   */
    .news-detail-page .section1 .title {
        font-size: 32px;
    }

    .news-detail-page .section2 .img-box {
        margin-bottom: 10px;
    }

    /* news-detail end   */
    /* jianjie start   */
    .jianjie-page .section2 .inner-box .content-box {
        margin-top: 20px;
        padding-left: 15px;
    }

    /* jianjie end   */
    /* about yewu */
    .about .section2 .menu-box .menu-list > li > a,
    .yewu .section2 .menu-box .menu-list > li > a {
        font-size: 15px;
    }
    .about .section2 .left-box,
    .yewu .section2 .left-box {
        flex: 0 0 25%;
        max-width: 25%;
    }

    .about .section2 .right-box,
    .yewu .section2 .right-box{
        padding-left: 20px;
    }

    /* about yewu */
    /* about-page2 */
    .about-page2 .section2 .right-box .content-box .r-box {
        padding-left: 15px;
    }

    .about-page2 .section2 .right-box .content-box .l-c {
        flex-direction: column-reverse;
    }

    .about-page2 .section2 .right-box .content-box .r-box {
        margin-top: 20px;
    }

    .about-page2 .section2 .right-box .content-box .r-box .icon-box {
        padding-bottom: 20px;
    }

    /* about-page2 */
    /*  about-page3 */
    .about-page3 .section2 .right-box .content-box .img-box .text-box > div {
        font-size: 26px;
        line-height: 35px;
    }
    .about-page3 .section2 .right-box .content-box .img-box .text-box .d2{
        margin-left: 30px;
    }
    /*  about-page3 */
    /* about-page4 */
    .about-page4 .section2 .right-box .content-box .r-content {
        padding-left: 15px;
    }

    .about-page4 .section2 .right-box .content-box .r-content .title {
        font-size: 19px;
    }

    .about-page4 .section2 .right-box .content-box .r-content .r-t {
        font-size: 16px;
    }

    /* about-page4 */
}

@media screen and (max-width: 900px) {
    .index .section1 .banner .item .text-content .b-img3 {
        width: 380px;
        height: 140px;
    }

    .index .section1 .banner .item .text-content .b-title3 {
        font-size: 35px;
        top: 18%;
        left: 20%;
    }
}

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

    footer .r-p ul {
        margin: 0 20px;
    }
}

@media screen and (max-width: 767px) {
    .index .section1 .banner .item .text-content .banner-title2 {
        font-size: 60px;
        line-height: 60px;
    }

    .index .section1 .banner .item .text-content .b-title1,
    .index .section1 .banner .item .text-content .b-title2 {
        font-size: 16px;
    }

    .owl-carousel .owl-nav .owl-next {
        right: 15px;
    }

    .owl-carousel .owl-nav .owl-prev {
        left: 15px;
    }

    .owl-carousel .owl-nav [class*=owl-] i {
        width: 20px;
        height: 20px;
        line-height: 20px;
        font-size: 14px;
    }

    .index .banner .owl-carousel .owl-nav [class*=owl-] {
        margin: 0
    }

    .owl-carousel .owl-dots .owl-dot span {
        width: 10px;
    }

    .owl-carousel .owl-dots .owl-dot.active span {
        width: 20px;
    }

    .owl-carousel .owl-dots {
        bottom: 0;
    }

    footer .r-p ul {
        margin: 25px 0 0;
    }
    .index .section1 .banner .item .text-content .b-t{
        margin-bottom: 15px;
    }
    .index .section1 .banner .item .text-content .banner-title {
        font-size: 30px;
    }

    .index .section1 .banner .item .text-content > p {
        margin-bottom: 0px;
        font-size: 12px;
    }

    .index .section3 .box3 .s3-img2 {
        display: none;
    }

    .index .section4 .row {
        justify-content: center;
    }

    .index .section4 .box2 {
        -ms-flex: 0 0 100%;
        flex: 0 0 100%;
        justify-content: center;
        max-width: 100%;
        margin-bottom: 20px;
    }

    .index .section5 .border-line {
        border-right: none;
        border-bottom: 1px solid #4eccfc;
        padding-bottom: 20px;
        margin-bottom: 20px;
    }

    /* contact-page start */
    .contact-page .section3 {
        height: 270px;
    }

    /* contact-page end */
    /* about yewu */
    .about .section2 .left-box,
    .yewu .section2 .left-box {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .about .section2 .right-box,
    .yewu .section2 .right-box {
        padding-left: 15px;
        margin-top: 20px;
    }

    /* about yewu */
}

@media screen and (max-width: 700px) {
    .index .section1 .banner .item .text-content .b-img3 {
        width: 280px;
        height: 110px;
    }

    .index .section1 .banner .item .text-content .b-title3 {
        font-size: 28px;
        left: 18%;
    }
}


@media screen and (max-width: 575px) {
    .index .section1 .banner .item .text-content .banner-title2 {
        font-size: 44px;
        line-height: 35px;
    }

    .index .section1 .banner .item .text-content .b-title1 {
        font-size: 16px;
        margin: 5px 0;
    }

    .index .section1 .banner .item .text-content .b-t{
        margin-bottom: 10px;
    }
    .index .section1 .banner .item .text-content .banner-title {
        font-size: 24px;
    }
    .index .section1 .banner .item .text-content p {
        letter-spacing: 0px;
        margin: 0 10px;
    }

    /* news-detail start   */
    .news-detail-page .section1 .title {
        font-size: 26px;
        margin-bottom: 10px;
    }

    /* news-detail end   */
}

@media screen and (max-width: 530px) {
    .index .section1 .banner .item .text-content .b-img3 {
        width: 240px;
        height: 80px;
    }

    .index .section1 .banner .item .text-content .b-title3 {
        font-size: 24px;
        top: 10%;
        left: 18%;
    }
}


@media screen and (max-width: 460px) {
    .index .section1 .banner .item .text-content .b-img3 {
        width: 190px;
        height: 70px;
    }

    .index .section1 .banner .item .text-content .b-title3 {
        font-size: 24px;
        top: 10%;
        left: 12%;
        margin: 0;
        letter-spacing: 0;
    }

    /*  about-page3 */
    .about-page3 .section2 .right-box .content-box .img-box .text-box .d2{
        margin-left: 18px;
    }
    .about-page3 .section2 .right-box .content-box .img-box .text-box > div{
        font-size: 20px;
        line-height: 27px;
    }
    /*  about-page3 */
}

@media screen and (max-width: 450px) {
    .index .section2 .i01 {
        padding: 70px 30px 60px;
    }

    .about-page .section2 .project {
        margin-bottom: 30px;
    }

    .about-page .nav-right {
        right: 10px;
    }

    .crumbs .page-name {
        font-size: 22px;
    }


    .index .section4 .box-news {
        margin-bottom: 30px;
    }

    .index .section2 .i04 {
        padding: 237px 20px 40px 30px;
    }

    .index .section2 .box1 hr {
        top: 234px;
    }

    .index .section2 .i06 {
        padding: 203px 30px 40px 40px;
    }

    .index .section2 .box2 hr {
        top: 197px;
    }

    .index .section2 .i07 {
        padding: 205px 20px 40px 100px;
        margin-bottom: 70px;
    }

    .index .section2 .box3 hr {
        top: 202px;
    }

    .index .banner .it1 {
        top: 33%;
    }

    .box2 {
        -ms-flex: 0 0 100%;
        flex: 0 0 100%;
        max-width: 100%;
    }

    footer .footer-top .input-box .email {
        width: 100px;
    }

}

@media (max-width: 414px) {
    .jianjie-page .section2 .inner-box .content-title,
    .jianjie-page .section2 .inner-box .content-name1{
        font-size: 20px;
    }
    .index .section1 .banner .item .text-content .b-t{
        margin-bottom: 0px;
    }
    .index .section1 .banner .item .text-content .banner-title {
        font-size: 18px;
    }

    .index .section1 .banner .item .text-content .banner-title2{
        font-size: 35px;
        line-height: 30px;
    }

    .index .section1 .banner .item .text-content .b-title1{
        margin: 0;
    }

    .about-page4 .section2 .right-box .content-box .r-content .title {
        font-size: 18px;
    }

    .about-page4 .section2 .right-box .content-box .r-content .r-t {
        font-size: 14px;
    }

    .about-page3 .section2 .right-box .content-box .time-axis .dot .inner-dot:before {
        height: 80px;
    }
}

@media screen and (max-width: 413px) {
    header .header-top .h-l {
        font-size: 12px;
    }
}

@media screen and (max-width: 375px) {
    header .header-menu .row {

    }

}

@media screen and (max-width: 325px) {
    .more {
        transform: translate(37px, 58px);
    }
}