@media screen and (max-width: 750px) {
    html {
  overflow-y: scroll;
}

:root {
  overflow-y: auto;
  overflow-x: hidden;
}

:root body {
  position: absolute;
}

body {
  width: 100vw;
  overflow: hidden;
}


    .w1000px {
        width: 100vw;
    }
    .header .container {
        position: relative;
        margin-bottom: 0;
        padding-bottom: 15px;
    }
    .header .container .logo {
        width: 35%;
    }
    .header .container .logo_right {
        position: absolute;
        top: 49px;
        left: -4px;
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100vw;
        background: #fff;
    }
    .header .container .logo_right .nav {
        display: block;
    }
    .logo_right .nav ul {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 100%;
    }
    .header .container .logo_right .nav ul li {
        width: unset;
        padding-right: 10px;
    }
    .logo_right .search-form {
        width: 100%;
    }
    .logo_right .search-form fieldset {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .slideBox .hd {
        transform: translateX(-50%);
    }
    .search-form input[type=text] {
        width: unset;
    }
    .search-form button {
        width: unset;
    }
    .im_main,
    .main-im {
        display: none;
    }
    .company_profile .bounceIn,
    .company_profile .video,
    .home_news .news_con ul li,
    .foot_copy_item1,
    .foot_copy_item3,
    .foot_copy_item2,
    .foot_copy_item4,
    .link_title,
    .link_content {
        width: unset;
        float: unset;
    }
    .link_content {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        justify-content: center;
    }
    .foot_copy_item1 {
        height: unset;
    }
    .foot_copy_item2 {
        margin-top: 0;
    }
    .foot_copy_item3 {
        margin-left: 0;
    }
    .foot_copy_item4 img {
        width: 178px;
    }
    .left_nav {
        width: 100%;
        padding-top: 0;
        padding-bottom: 0;
    }
    .home_news .news_con,
    .foot_copy,
    .foot_nav ul,
    .link,
    .foot_copy ul,
    .left_main ul,
    .about_body_content,
    .about_right,
    .right_content {
        width: 100%;
    }
    .about_right {
        float: unset;
        padding: 0 10px;
        min-height: unset;
    }
    .right_content {
        min-height: unset;
        line-height: unset;
        padding-bottom: 0;
    }
    .about_right_wz ul li.about_right_wz_l {
        width: 100%;
    }
    .about_right_wz,
    .about_right_wz ul {
        width: 100%;
    }
    .top_tit .span1 {
        font-size: 20px;
    }
    .foot_copy,
    .foot,
    .foot_nav,
    .foot_nav ul,
    .link {
        height: unset;
    }
    .link {
        margin-bottom: 0;
        line-height: 2;
        margin-top: 0;
    }
    .about_left {
        float: unset;
        width: 100%;
    }
    .left_main ul li {
        margin-top: 0;
        line-height: 1.5;
    }
    .left_main ul {
        margin-bottom: 0;
    }
    .about_body_content .row {
        margin-top: 0;
        margin-left: 0;
        margin-right: 0;
    }
    .slideBox .bd img {
        height: 160px;
    }
    .logo-right-handle {
        display: inline-block;
    }
    .header {
        height: unset;
    }
    .company_profile .video {
        height: unset;
        padding-top: 0;
    }
    .company_profile .video video {
        width: 100%;
    }
    .home_news .news_con ul {
        margin-right: 0;
        margin-left: 0;
    }
    .home_news .news_con ul li {
        margin-bottom: 0;
        margin-left: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .home_news .news_con ul li p {
        margin: 0;
        padding: 0;
    }
    iframe {
        width: 100% !important;
    }
    .about_qt {
        display: flex;
        flex-direction: column;
        align-items: center;
        height: unset;
        width: cacl(100vw - 22px);
    }
    .right_content_t,
    .right_content_t img,
    .right_content_t section,
    .right_content_t p {
        width: calc(100vw - 22px) !important;
    }
    .right_content_t p {
        padding-left: 0 !important;
    }
    .right_content_t section {
        margin: 0 !important;
    }
    .right_content td {
        height: auto !important;
    }
    .widget-content {
        padding: 0 10px;
    }
    .widget-content:not(:last-child) {
        margin-bottom: 20px;
    }
    .about_right_wz ul {
        margin: 0;
    }
    .bounceIn h2 {
        margin-top: 10px;
        line-height: 1.5;
        font-size: 20px;
    }
    .jqgk .contai p {
        margin: 0px auto 0px auto;
    }
    .xia_x {
        display: none;
    }
    .picMarquee-left .hd {
        display: none;
    }
    .picMarquee-left .bd {
        padding: 10px 0;
    }
    .home_news .news_con {
        margin-top: 20px;
    }
    .more_more {
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 10px;
    }
    .more_more a {
        line-height: 1.5;
    }
    .company_profile .bounceIn p a {
        width: unset;
        height: unset;
        margin: 0;
        line-height: 1.5;
    }
}
@media (max-width: 640px) {
    .header .container .logo,
    .header_zi .container .logo {
        width: 35%;
    }
}

@media (max-width: 480px) {
    .header .container .logo,
    .header_zi .container .logo {
        width: 35%;
    }
    .top_tit {
        margin: 3px auto;
    }
    .home_news .news_con ul li {
        padding: 0;
    }
}
.logo-right-handle {
    display: none;
    float: right;
    margin-top: 5px;
    margin-right: 10px;
    font-size: 20px;
}