/* ===== 全局基础样式 ===== */
body {
    font-family: "微软雅黑";
    overflow-x: hidden;
    font-size: 14px;
}

.container{
	min-width: 1500px;
}
 
ul, li {
    list-style: none;
}
 
.cb {
    width: 100%;
    clear: both;
    height: 0;
}
 
.fl { float: left; }
.fr { float: right; }
.tac { text-align: center; }
 
a { text-decoration: none !important; }
h1 { margin: 0; height: 70px; line-height: 70px; }
img { max-width: 100%; }
 
/* ===== 导航栏样式 ===== */
#nav {
    height: 80px;
    line-height: 80px;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    z-index: 999999;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}
 
#nav .container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
 
/* 品牌LOGO */
#nav .logo {
	margin-top: 15px;
    height: 80px;
    background: no-repeat left center;
    line-height: 62px;
    position: absolute;
    left: 8px;
    transition: all 0.3s ease;
}
 
#nav .logo img {
    vertical-align: middle;
    max-height: 50px;
    transition: all 0.3s ease;
}
 
/* 主导航菜单 */
#nav .nava {
    text-align: right;
    position: absolute;
    width: 100%;
    z-index: 9;
    height: 80px;
    padding: 0;
    margin-bottom: 0;
}
 
#nav .nava li {
    display: inline-block;
    position: relative;
    width: 12%;
    text-align: center;
    max-width: 120px;
}
 
/* 导航链接 */
#nav .nava .a1 {
    display: block;
    padding: 0 2px;
    color: #666666;
    height: 80px;
    line-height: 80px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    position: relative;
    transition: all 0.3s ease;
}
 
#nav .nava .a1 img { display: none; }
 
/* 导航悬停效果 */
#nav .nava a:hover { color: #1890ff; }
 
#nav .nava a:after {
    content: '';
    position: absolute;
    bottom: 0px;
    left: 50%;
    width: 0;
    height: 2px;
    background: #1890ff;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}
 
#nav .nava a:hover:after { width: 60%; }
 
/* 下拉菜单 */
#nav .nava .submenu {
    position: absolute;
    top: 100%;
    left: 0;
    width: max-content;
    min-width: 200px;
    background: #fff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1000;
    border-radius: 4px;
    padding: 10px 0;
}
 
#nav .nava li:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
 
#nav .nava .submenu li {
    display: flex;
    align-items: center;
    width: 100%;
    height: 40px;
    min-height: 40px;
    margin: 5px 0;
    position: relative;
} 
 
#nav .nava .submenu a {
    display: inline-flex;
    align-items: center;
    min-width: max-content;
    white-space: nowrap;
	height: 40px;
    padding: 0 10px;
    color: #666;
    font-size: 14px;
    font-weight: 400;
    border-left: 3px solid transparent;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
 
#nav .nava .submenu a:hover {
    color: #333;
    background: linear-gradient(90deg, #f8f9fa 0%, #e9ecef 100%);
    border-left-color: #d4a017;
    transform: translateX(3px);
}

.language .submenu {
    background: transparent !important; /* 去除背景 */
    box-shadow: none !important;      /* 去除阴影 */
    position: absolute;
    top: 100%;
    left: 0;
    width: max-content;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1000;
    border-radius: 4px;
    padding: 10px 0;
}

/* 移动端菜单按钮 */
#nav .daohangi {
    display: none;
    width: 70px;
    height: 80px;
    text-align: center;
    line-height: 80px;
    cursor: pointer;
    position: absolute;
    right: 15px;
    top: 0;
}
 
#nav .daohangi img {
    width: 24px;
    height: 24px;
    vertical-align: middle;
    transition: all 0.3s ease;
}
 
/* ===== 横幅区域 ===== */
#banner {
    width: 100%;
    height: 640px;
    position: relative;
    overflow: hidden;
    line-height: 650px;
    text-align: center;
    margin-top: 80px;
}
 
#banner img { max-width: 90%; }
 
#banner ul {
    width: 300%;
    height: 100%;
    position: relative;
    padding: 0;
    left: 0;
    z-index: 2;
}
 
#banner ul li {
    width: 33.3333333%;
    height: 100%;
    float: left;
    background: #fff url()  no-repeat top center;
    background-size: cover;
}
 
#banner ol {
    text-align: center;
    position: absolute;
    width: 100%;
    bottom: 20px;
    padding: 0;
    z-index: 5;
    height: 14px;
    line-height: 14px;
}
 
#banner ol li {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    display: inline-block;
    margin: 0 12px;
    cursor: pointer;
}

/* ===== 内容区域 ===== */
.i_con1 {
    height: 450px;
    overflow: hidden;
    margin-top: 18px;
    padding: 0;
}
 
.i_con1 .right {
    padding: 0;
    background: center center;
    background-size: cover;
    height: 450px;
}
 
.i_con1 .right img { display: none; width: 100%; }
 
.i_con1 .left {
    height: 450px;
    line-height: 450px;
    background: #fff;
    padding: 30px 45px;
}
 
.i_con1 .left .box11 {
    display: inline-block;
    line-height: 1;
    vertical-align: middle;
}
 
.i_con1 .left .p1 {
    font-size: 24px;
    margin-bottom: 30px;
}
 
.i_con1 .left .span1 {
    display: inline-block;
    height: 2px;
    width: 12px;
    margin-bottom: 30px;
}
 
.i_con1 .left .a {
    color: #4b4b4b;
    font-size: 16px;
    line-height: 24px;
    margin-bottom: 20px;
    display: block;
}
 
.i_con1 .left .p2 {
    font-size: 13px;
    color: #909090;
    line-height: 20px;
    margin-bottom: 50px;
}
 
.i_con1 .left .a2 {
    display: inline-block;
    width: 50px;
    height: 50px;
    text-align: center;
    line-height: 50px;
    border-radius: 50%;
}
 
/* 内容区域变体 */
.i_con2 .left { background: #2b2b2b; }
.i_con2 .left .p1 { color: #ffffff; }
.i_con2 .left .span1 { background: #666666; }
.i_con2 .left .a { color: #FFF; }
.i_con2 .left .p2 { color: #909090; }
.i_con2 .left .a2 { border: 1px solid #FFF; }
 
.i_con3 {
    background: #fff;
    margin-top: 18px;
    overflow: hidden;
}
 
/* 标题样式 */
.i_bt {
    text-align: center;
    margin-top: 36px;
    margin-bottom: 18px;
}
 
.i_bt .p1 {
    color: #222222;
    font-size: 24px;
    height: 56px;
    line-height: 56px;
}
 
.i_bt .p2 {
    max-width: 760px;
    font-size: 12px;
    color: #909090;
    line-height: 24px;
    margin: 0 auto;
}
 
/* 选择器样式 */
.i_con3 .xuanze {
    width: 100%;
    max-width: 632px;
    margin: 0 auto 45px;
    overflow: hidden;
    padding: 0;
}
 
.i_con3 .xuanze li {
    float: left;
    height: 50px;
    width: 25%;
    max-width: 158px;
    color: #6e6e6e;
    background: #F2F2F2;
    text-align: center;
    line-height: 50px;
    cursor: pointer;
}
 
.i_con3 .xuanze li.background  { color: #FFF !important; }
 
/* 列表样式 */
.i_con3 .lb { overflow: hidden; margin-bottom: 46px; }
 
/* .lb {
     overflow: hidden; 
 }
 .lb .big_box {
     display: flex;
     transition: transform 0.5s; 
 }
 .lb .big_box .s_box {
     flex: 0 0 100%;
     min-width: 100%;
 } */
 
.lb .big_box {
    width: 400%;
    position: relative;
    left: 0;
}
 
.lb .big_box .s_box { float: left; width: 25%; }
 
.s_box .col-xs-12 {
    padding: 0 9px;
    margin-bottom: 18px;
}
 
.s_box .ss_box {
    padding: 15px;
    border: 1px solid #eeeeee;
}
 
.s_box .ss_box .img { display: block; overflow: hidden; }
 
.img img {
    width: 100%;
    height: 248px;
    transition: all .5s;
    -webkit-transition: all .5s;
    -moz-transition: all .5s;
    -o-transition: all .5s;
}
 
.img:hover img { transform: scale(1.05); }
 
.s_box .ss_box .a1 {
    width: 100%;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #434343;
    line-height: 44px;
}
 
.s_box .ss_box .p1 {
    width: 100%;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 13px;
    color: #9c9999;
    line-height: 1;
}

 
/* ===== 特色区域 ===== */
.i_con4 {
    padding: 200px 15px;
    background: url(../images/5.jpg)  center center;
    background-size: cover;
    margin-top: 18px;
    color: #000000;
    text-align: center;
}
 
.i_con4 .p1 {
    font-size: 30px;
    line-height: 1;
    margin-bottom: 20px;
}
.i_con4 .p1 span{
    background: rgba(255, 255, 255, 0.74);
}
.i_con4 .bkd {
	background: rgba(255, 255, 255, 0.74);
}
.i_con4 .p2 {
    font-size: 16px;
    line-height: 32px;
    max-width: 1000px;
    margin: 0 auto 30px;
}
 
.i_con4 .a1 {
    width: 150px;
    height: 46px;
    line-height: 46px;
    text-align: center;
    display: inline-block;
    font-size: 13px;
    color: #373737 !important;
    background: rgba(255, 255, 255, 0.74);
    transition: all .5s;
    -webkit-transition: all .5s;
    -moz-transition: all .5s;
    -o-transition: all .5s;
}
 
.i_con4 .a1:hover { background: #fff; }
 
.i_con4 span {
    justify-content: center;
    align-items: center;
    color: #000; /* 文本颜色 */
	border: 1px solid #ddd; /* 添加边框 */
}
/* ===== 新闻区域 ===== */
.i_con5 {
    margin: 18px auto;
    background: #fff;
    overflow: hidden;
    padding-bottom: 50px;
}
 
.i_news { margin: 15px 0; }
 
.i_news a { display: block; width: 100%; overflow: hidden; }
 
.i_news .a1 {
    white-space: nowrap;
    text-overflow: ellipsis;
    font-size: 16px;
    color: #434343;
    height: 36px;
    line-height: 36px;
    margin-top: 10px;
}
 
.i_news p {
    font-size: 12px;
    color: #969696;
    margin: 0;
}
 
.i_news .p2 {
    line-height: 18px;
    height: 54px;
    overflow: hidden;
}
 
.i_con5 .div div {
    height: 110px;
    line-height: 110px;
    text-align: center;
    max-height: 90%;
    overflow: hidden;
}
 
.i_con5 div:hover > img {
    transition: all .5s;
    -webkit-transition: all .5s;
    -moz-transition: all .5s;
    -o-transition: all .5s;
}
 
.i_con5 div:hover > img { transform: scale(1.1); }
 
/* ===== 页脚样式 ===== */
.footer {
    background: #1e1e1e;
    overflow: hidden;
}
 
.footer .foot_top {
    border-bottom: 1px solid #000;
    text-align: center;
    padding: 26px 0;
    position: relative;
}
 
.footer .foot_top .div { display: inline-block; overflow: hidden; }
 
.footer .foot_top .f_top {
    width: 66px;
    height: 46px;
    line-height: 46px;
    text-align: center;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    border-radius: 0 0 5px 5px;
    cursor: pointer;
}
 
.footer .foot_top a {
    color: #818181;
    font-size: 12px;
    padding: 6px 16px;
    float: left;
}
 
.footer .foot_top a:hover {
    color: #fff !important;
    text-decoration: underline !important;
}
 
.footer .foot_top .a1h { background: none; }
.footer .foot_top br { display: none; }
 
.footer .foot_m {
    border-top: 1px solid #505050;
    padding: 28px 0 54px;
    overflow: hidden;
}
 
.foot_m .guanzhu { text-align: center; }
.foot_m .foot_lx { text-align: left; }
 
.foot_m .foot_lx .p1 {
    font-size: 13px;
    color: #ffffff;
    margin-bottom: 30px;
    margin-top: 18px;
}
 
.foot_m .foot_lx .p2 {
    font-size: 22px;
    color: #fff;
    margin-bottom: 22px;
}
 
.foot_m .foot_lx a {
    display: inline-block;
    font-size: 14px;
    color: #fff !important;
    width: 150px;
    height: 36px;
    line-height: 36px;
    text-align: center;
}
 
.foot_m .xinxi {
    text-align: center;
    margin-top: 10px;
}
 
.foot_m .xinxi .p1 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 20px;
}
 
.foot_m .xinxi p {
    color: #d9d9d9;
    background: no-repeat top left;
    line-height: 30px;
    text-align: left;
    margin-bottom: 0;
}
 
.foot_m .xinxi .box { display: inline-block; }
.foot_m .erweima { text-align: center; }
.foot_m .cb { display: none; }
 
.foot_m .erweima {
    width: 250px;
    margin: 0 auto;
}
 
.foot_m .erweima dl { display: inline-block; }
 
.foot_m .erweima dt {
    padding: 20px;
    background: #2c2c2c;
    border: 1px solid #444444;
}
 
.foot_m .erweima dd {
    color: #d9d9d9;
    height: 60px;
    line-height: 60px;
}
 
.foot_down {
    background: #0f0f0f;
    padding: 15px 0;
    overflow: hidden;
}
 
.foot_down p {
    margin-bottom: 0;
    font-size: 12px;
    color: #6a6a6a;
    line-height: 22px;
}
 
.foot_down a {
    color: #6a6a6a;
    margin-right: 5px;
}
 
/* ===== 列表页样式 ===== */
.list_banner {
    height: 450px;
    line-height: 450px;
    text-align: center;
    margin-top: 80px;
}
 
.list_banner img { max-width: 90%; }
 
.list_bt {
    text-align: center;
    padding: 46px 0;
}
 
.list_bt .p1 {
    font-size: 24px;
    color: #222222;
}
 
.list_bt .p2 {
	padding: 6px;
    font-size: 12px;
    color: #909090;
}
 
/* ===== 关于我们页样式 ===== */
.about_main { margin-bottom: 30px; }
.about_main p { text-align: center; }
 
.about_main .p1 {
    font-size: 18px;
    color: #222222;
    line-height: 44px;
}
 
.about_main .p2 {
    font-size: 13px;
    color: #959595;
    line-height: 24px;
    margin-bottom: 20px;
}
 
.about_mi {
    padding: 150px 0 120px;
    text-align: center;
    background: url(../images/about_m_i.png)  center center;
    background-size: cover;
    color: #fff;
}
 
.about_mi .boxo {
    display: inline-block;
    width: 33.3333%;
    max-width: 330px;
    text-align: center;
    min-width: 220px;
}
 
.about_mi .boxo .boxo1 { display: inline-block; }
.about_mi .boxo p { margin-bottom: 0; text-align: left; }
.about_mi .boxo .p01 { margin-bottom: 18px; }
 
.about_mi .boxo .p02 {
    font-size: 40px;
    margin-bottom: 12px;
    font-weight: bold;
}
 
.about_mi .boxo .p03 { margin-bottom: 30px; }
 
.about_main .p4 {
    font-size: 24px;
    color: #222222;
    height: 68px;
    line-height: 68px;
    background: url(../images/about_x.jpg)  no-repeat bottom center;
    margin-top: 30px;
}
 
.about_main .p5 {
    font-size: 18px;
    color: #474747;
}
 
.about_main .p6 {
    font-size: 13px;
    color: #959595;
    max-width: 738px;
    margin: 10px auto 20px;
}
 
.about_main .box_b {
    text-align: center;
    margin-top: 50px;
}
 
.about_main .box_b1 {
    display: inline-block;
    text-align: center;
    width: 33%;
    max-width: 300px;
    min-width: 200px;
    margin-bottom: 30px;
}
 
.about_main .box_b2 {
    width: 175px;
    display: inline-block;
}
 
.about_main .box_b2 img { margin-bottom: 35px; }
 
.about_main .box_b2 p {
    color: #909090;
    line-height: 24px;
}
 
.about_main .box_b2 font { color: #2c2c2c; }
 
/* ===== 分页样式 ===== */
.fenye {
    margin: 40px 0;
    padding: 0;
}
 
.fenye li { display: inline-block; }
 
.fenye li a {
    display: block;
    height: 26px;
    line-height: 24px;
    border: 1px solid #000;
    padding: 0 9px;
}
 
.fenye li a:hover,
.fenye li a.cur  { color: #fff !important; }
 
/* ===== 详情页样式 ===== */
.xq_bt {
    text-align: center;
    padding: 50px 0 10px;
    border-bottom: 1px solid #eeeeee;
    margin-bottom: 20px;
}
 
.xq_bt .p1 {
    font-size: 22px;
    color: #000000;
    line-height: 38px;
}
 
.xq_bt .p2 {
    font-size: 12px;
    color: #767676;
    line-height: 30px;
}
 
.cp_x_main .p1 {
    font-size: 12px;
    color: #4e4e4e;
    text-indent: 2em;
    line-height: 24px;
    margin-bottom: 20px;
}
 
.cp_x_main img { margin: 20px 0; }
.cp_x_main { padding-bottom: 50px; }
 
.sx { padding: 30px 0; }
 
.sx a {
    display: block;
    color: #3d3d3d;
    line-height: 28px;
}
 
.n_xuanze {
    text-align: center;
    margin: 40px 0;
}
 
.n_xuanze a {
    width: 25%;
    max-width: 314px;
    height: 50px;
    text-align: center;
    line-height: 50px;
    color: #6e6e6e !important;
    background: #f2f2f2;
    display: inline-block;
}
 
.n_xuanze a.background  { color: #FFF !important; }
 
/* ===== 新闻详情页样式 ===== */
.news_x .n_bt {
    text-align: center;
    margin-top: 40px;
}
 
.news_x .n_bt .p1 {
    margin-bottom: 20px;
    font-size: 22px;
    color: #242424;
    font-weight: bold;
}
 
.news_x .n_bt .p2 {
    font-size: 12px;
    color: #939393;
}
 
.news_x .n_bt .p2 span {
    margin: 0 15px;
    display: inline-block;
}
 
.news_x .p1 {
    color: #626262;
    font-size: 12px;
    line-height: 24px;
}
 
/* ===== 联系信息样式 ===== */
.l_xinxi {
    border: 1px solid #ccc;
    padding-top: 60px;
    text-align: center;
    overflow: hidden;
    margin-bottom: 38px;
}
 
.l_xinxi .boxo1 {
    display: inline-block;
    text-align: left;
    margin-bottom: 35px;
}
 
.l_xinxi .boxo1 .p1 {
    font-size: 24px;
    color: #434343;
    font-weight: bold;
    margin-bottom: 12px;
}
 
.l_xinxi .boxo1 .p2 {
    font-size: 12px;
    line-height: 22px;
    color: #787878;
}
 
.l_xinxi .boxo1 .p3 {
    font-size: 12px;
    color: #787878;
}
 
.ditu {
    border: 1px solid #ccc;
    padding: 5px;
    overflow: hidden;
    margin-bottom: 50px;
}
 
/* ===== 留言表单样式 ===== */
.liuyan .left {
    height: 355px;
    border: 1px solid #d9d9d9;
    padding: 15px;
    margin-bottom: 50px;
}
 
.liuyan .left .bg_i {
    height: 280px;
    background: url(../images/liuyan_i.jpg)  no-repeat center right;
    background-size: cover;
}
 
.liuyan .left .p1 {
    font-size: 18px;
    color: #848484;
    border-top: 1px solid #ccc;
    line-height: 40px;
    margin-top: 15px;
}
 
.liuyan .left font { font-size: 12px; }
 
.liuyan .right {
    padding: 0 0 0 50px;
    margin-bottom: 50px;
}
 
.liuyan .right input {
    width: 100%;
    border: 1px solid #d9d9d9;
    height: 40px;
    line-height: 40px;
    padding-left: 18px;
    text-align: left;
    margin: 13px 0;
}
 
.liuyan .right textarea {
    width: 100%;
    height: 70px;
    border: 1px solid #d9d9d9;
    padding-left: 18px;
    padding-top: 5px;
    resize: none;
    margin: 14px 0;
}
 
.liuyan .right button {
    height: 40px;
    border: none;
    text-align: center;
    line-height: 40px;
    color: #fff;
    width: 100%;
}
 
/* ===== 响应式设计 ===== */
@media (max-width: 1500px) {
    .container {
        min-width: 100%;
        padding: 0 15px;
        box-sizing: border-box;
    }
    
    #nav .container {
        width: 100%;
    }
}

@media (max-width: 1200px) {
    #nav .nava li {
        width: 14%;
        max-width: none;
    }
    
    .i_con1 .left {
        padding: 20px 30px;
    }
}
 
@media (max-width: 992px) {
	#nav .nava li {
	    width: 16%;
	}
	
	#banner {
	    height: 500px;
	    margin-top: 80px;
	}
	
	.i_con1 .left {
	    line-height: 1.5;
	}
	
	.i_con4 {
	    padding: 150px 15px;
	}
    .foot_m { padding: 28px 0; }
    .foot_m .fenx { text-align: center; margin-top: 30px; }
    .foot_m .cb { display: block; }
    .foot_m .erweima { margin-top: 40px; }
}
 
@media (max-width: 768px) {
	body {
	    font-size: 15px;
	}
	
	#nav {
	    height: 60px;
	    line-height: 60px;
	}
	
	#nav .logo {
	    height: 60px;
	    line-height: 50px;
	}
	
	#nav .logo img {
	    max-height: 40px;
	}
	
	#banner {
	    height: 400px;
	    margin-top: 60px;
	}
	
	.i_con1 .left {
	    padding: 20px;
	}
	
	.i_bt .p1 {
	    font-size: 20px;
	}
	
	.i_con3 .xuanze li {
	    width: 50%;
	    max-width: none;
	}
	
	.foot_m .foot_lx,
	.foot_m .xinxi {
	    text-align: center;
	}
    #nav .daohangi {
        display: block;
        width: 70px;
        height: 80px;
        text-align: center;
        line-height: 80px;
        cursor: pointer;
    }
    
    #nav .daohangi img {
        width: 55%;
        cursor: pointer;
        display: none;
    }
    
    #nav .daohangi img.cur  { display: inline-block; }
    #nav .container { padding-right: 0; }
    
    #nav .nava {
        left: 0;
        top: 80px;
        padding: 0;
        display: none;
    }
    
    #nav .nava li {
        display: block;
        background: #fff;
        width: 100%;
        max-width: 100%;
        text-align: left;
        position: relative;
        font-size: 16px;
        line-height: 60px;
    }
    
    #nav .nava li .a1 {
        border-top: none !important;
        height: 60px;
        line-height: 60px;
        position: relative;
        padding-left: 20px;
        border-bottom: 1px solid #CCC !important;
        width: 100%;
        color: #333;
    }
    
    #nav .nava dl {
        position: relative;
        margin: 0 !important;
        padding: 0;
        width: 100%;
        border-top: none;
        background: #f6f6f6;
        padding: 15px 0;
        display: none;
    }
    
    #nav .nava dd:hover { background: #b9d6f5; }
    #nav .nava dl a { font-size: 14px; color: #333; }
    
    #nav .nava .a1 img {
        display: inline;
        height: 60%;
        margin-top: 10px;
        margin-right: 3px;
        transition: all .5s;
        -webkit-transition: all .5s;
        -moz-transition: all .5s;
        -o-transition: all .5s;
    }
    
    #nav .nava .a1 img.cur  {
        transform: rotate(90deg);
        margin-top: 12px;
    }
    
    #nav { height: 80px; line-height: 80px; }
    .i_con1 { height: auto; }
    .i_con1 .right { height: auto; }
    .i_con1 .right img { display: block; }
    .i_con1 .left { padding: 30px 15px; height: auto; line-height: 1; }
    
    #banner { height: 500px; line-height: 500px; }
    .footer .foot_top br { display: inline-block; }
    .footer .foot_top .br1 { display: none; }
    .footer .foot_top .a2h { background: none; }
    
    .foot_m .xinxi {
        margin-top: 30px;
        text-align: center;
    }
    
    .foot_m .xinxi p { text-align: center; }
    .foot_m .foot_lx { display: inline-block; text-align: center; }
    .l_xinxi .boxo1 { text-align: center; }
    .liuyan .right { padding: 0; }
}

@media (max-width: 576px) {
    #banner {
        height: 300px;
    }
    
    .i_con4 {
        padding: 100px 15px;
    }
    
    .i_con4 .p1 {
        font-size: 24px;
    }
    
    .about_mi .boxo {
        width: 100%;
        max-width: none;
        margin-bottom: 30px;
    }
    
    .about_main .box_b1 {
        width: 100%;
        max-width: none;
    }
    
    .n_xuanze a {
        width: 100%;
        max-width: none;
        margin-bottom: 10px;
    }
}
 
@media (max-width: 420px) {
    .i_con4 { padding: 150px 15px; }
    .footer .foot_top br { display: none; }
    .footer .foot_top .br1 { display: inline-block; }
    .footer .foot_top .a3h { background: none; }
}
 
@media (min-width: 768px) {
    #nav .nava { display: block !important; }
}

@media (max-width: 767px) {
    .hidden-xs {
        display: none !important;
    }
    
    .visible-xs {
        display: block !important;
    }
	
	.mobile-mt-0 {
	    margin-top: 0 !important;
	}
	
	.mobile-mb-20 {
	    margin-bottom: 20px !important;
	}
	
	.mobile-text-center {
	    text-align: center !important;
	}
	
	.mobile-text-left {
	    text-align: left !important;
	}
}

/* 超大屏幕适配 */
@media (min-width: 2000px) {
    .container {
        max-width: 1800px;
        margin: 0 auto;
    }
    
    #nav .container {
        max-width: 1800px;
    }
    
    body {
        font-size: 16px;
    }
}

/* 移动设备横屏适配 */
@media (max-width: 992px) and (orientation: landscape) {
    #nav {
        height: 50px;
        line-height: 50px;
    }
    
    #nav .logo {
        height: 50px;
        line-height: 40px;
    }
    
    #nav .logo img {
        max-height: 30px;
    }
    
    #banner {
        margin-top: 50px;
    }
}
 
/* 高DPI设备适配 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    #nav {
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
    }
}

/* 证书模块 */
.cert-item {
    border: 1px solid #eee;
    padding: 15px;
    margin-bottom: 20px;
    transition: all 0.3s;
}
.cert-item:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}
.img-box {
    display: block;
    height: 200px;
    overflow: hidden;
    background: #f8f8f8;
}
.img-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.cert-info {
    padding: 10px 0;
    text-align: center;
}
.cert-title {
    font-size: 14px;
    color: #333;
    margin-bottom: 5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.cert-date {
    font-size: 12px;
    color: #999;
}

/* 打印样式 */
@media print {
    #nav, 
    .footer,
    .daohangi {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        background: none;
        color: #000;
    }
    
    .container {
        width: 100%;
        padding: 0;
        margin: 0;
    }
}
 
/* 弹性图片 */
.a2 img{
	padding: 20px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}
 
/* 响应式表格 */
table {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    display: block;
}
 
/* 响应式视频容器 */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
}
 
.video-container iframe,
.video-container object,
.video-container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
 
/* 响应式工具类 */
.hidden-xs {
    display: block !important;
}
 
.visible-xs {
    display: none !important;
}