@media (max-width: 1280px) and (min-width: 300px) {

.topnav {
    width: 100%;
    overflow: hidden;
    padding: 0px;
}

.logo {
    width: 100%;
    overflow: hidden;
    height: auto;
    padding-top: 30px;
}

.logo img {
    width: 120px;
    height: auto;
}

.tell {
    width: 100%;
    position: relative;
    line-height: 60px;
}
.msan {
    width: 60px;
    height: 40px;
    position: absolute;
    right: 5px;
    top: 4px;
    background: url(../images/menu.png) no-repeat center;
    background-size: 30px;
    background-color: white; /* 添加的白色背景 */
    border-radius: 4px;       /* 可选：加个圆角更美观 */
    box-shadow: 0 2px 5px rgba(0,0,0,0.1); /* 可选：加个阴影提升层次感 */
}
/* 默认隐藏 .mnav */
.mnav {
        position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 40px 20px;
}



.mnav#fullscreenNav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: center;
}

.mnav#fullscreenNav li {
    margin: 25px 0;
}

.mnav#fullscreenNav a {
    color: white;
    font-size: 24px;
    text-decoration: none;
    transition: color 0.3s;
}

.mnav#fullscreenNav a:hover {
    color: #00bcd4;
}

/* 关闭按钮样式 */
.close-btn {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 40px;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
}
.znav {
    display: none;
}

.banner {
    display: none;
}
.focus {
    width: 100%;
    height: 300px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
        display: block;
}

.focus .hd {
    width: 100%;
    height: 11px;
    position: absolute;
    z-index: 1;
    bottom: 5px;
    text-align: center;
}

.focus .hd ul {
    display: inline-block;
    height: 5px;
    padding: 3px 5px;
    background-color: rgba(255, 255, 255, 0.7);
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
    font-size: 0;
    vertical-align: top;
}

.focus .hd ul li {
    display: inline-block;
    width: 5px;
    height: 5px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
    background: #8C8C8C;
    margin: 0 5px;
    vertical-align: top;
    overflow: hidden;
}

.focus .hd ul .on {
    background: #FE6C9C;
}

.focus .bd {
    position: relative;
    z-index: 0;
}

.focus .bd li img {
    width: 100%;
    height: 300px;
    background: url(images/loading.gif) center center no-repeat;
}

.focus .bd li a {
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    /* 取消链接高亮 */
}
.w1380 {
    width: 100%;
}

.abtxt p {
    width: 100%;
    padding: 20px;
}
.slb {
    width: 100%;
    height: 300px;
}

.shuimg {
    width: 100%;
}

.shuimg div img {
    height: 300px;
}
.vedio_box {
    width: 100%;
}

.vedio_box iframe {
    width: 100%;
    height: auto;
}
.case_box {
    width: 100%;
    padding: 15px;
    margin-bottom: 0px;
}

.case_item {
    width: 100%;
    padding: 0px;
    height: auto;
}

.nqsp {
    width: 100%;
}

.nqsp iframe {
    width: 100%;
    height: auto;
}

.case_text {
    width: 100%;
    padding: 15px;
}

.case_text li {
    width: 50%;
    float: left;
    text-align: center;
}
.news {
    width: 100%;
}

.news_item {
    width: 100%;
}
.news {
    width: 100%;
}

.news_item {
    width: 100%;
}

.fbt_b {
    width: 100%;
    padding: 20px;
}

.fbt_ab {
    width: 100%;
}

.flx {
    width: 100%;
    overflow: hidden;
}

.ffw {
    width: 100%;
}

.jszc {
    width: 100%;
}

.fbt_ab p {
    width: 100%;
}

.ffw_x {
    width: 100%;
}

.fbt_c {
    width: 100%;
    overflow: hidden;
    padding: 20px;
}

.beian {
    width: 100%;
    padding: 0px;
}

.ftlj {
    width: 100%;
}
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background-color: #fff;
    border-top: 1px solid #ddd;
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -1px 5px rgba(0, 0, 0, 0.1);
    z-index: 9999;
    font-family: Arial, sans-serif;
}

.nav-btn {
    flex: 1;
    text-align: center;
    text-decoration: none;
    color: #333;
    font-size: 14px;
    padding: 10px 0;
    transition: background-color 0.3s;
}

.nav-btn:hover {
    background-color: #f0f0f0;
}
.us_nav {
    display: none;
}
.us_p {
    width: 100%;
    padding: 20px;
}

.us_imb {
    height: auto;
}

.us_imb img {
    width: 100%;
}

.us_imb img:last-child{
    width: 100%;
    height: auto;
    margin-left: 0px;
}
.usbox_a {
    width: 100%;
}

.menu_left {
    padding-top: 20px;
    padding-right: 0;
    text-align: center;
}

.menu_right {
    padding: 0px 15px;
    padding-top: 15px;
    width: 100%;
}

.us_news {
    padding-top: 15px;
}

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

.usbox {
    width: 100%;
}

.us_sp iframe {
    width: 100%;
    height: 300px;
}

.team_left {
    width: 100%;
}

.team_right {
    width: 100%;
    padding: 0px;
}

.team_ms {
    padding: 0 15px;
    margin-bottom: 15px;
}

.team_ms_text {
    padding: 0 15px;
}

.team_ms_text p {
    line-height: 30px;
}

.team_ms_text_box img {
    width: 100%;
    height: auto;
}

.team_ms_text_ren {
    width: 100%;
    margin-left: 0px;
    margin-bottom: 15px;
}

.team_ms_text_ren span {
    margin-top: 15px;
}

.team_renwu {
    padding: 0px 15px;
    margin-bottom: 15px;
}

.team_renwu_text {
    width: 100%;
}

.renwu_text {
    width: 100%;
}
.hxpoto img {
    width: 100%;
}

.ustop {
    height: auto;
}

.usbj {
    height: auto;
}
.splbox {
    width: 100%;
}

.lnlist {
    width: 100%;
    height: 60px;
    line-height: 60px;
}

.news_list li {
    padding: 0px 10px;
    margin-bottom: 10px;
}

.news_t a {
    position: relative;
}

.news_t p {
    position: absolute;
    left: 0px;
    top: 0px;
    margin-left: 10px;
    font-size: 15px;
    line-height: 34px;
    height: 105px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    color: #767676;
}

.news_t img {
    float: left;
}

.news_list li h1 {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.spbox h1 {
    line-height: 44px;
    height: auto;
    padding: 15px 0px;
}
.splist li {
    width: 100%;
    margin-right: 0px;
}
.title {
    width: 100%;
}
.title span {
    padding: 0px 25px;
    letter-spacing: 5px!important;
}

    








}