* {
    font-family: Source Han Sans SC;
}

#header {
    width: 100%;
    z-index: 9;
    transition: all .3s ease;
    background-color: #FFF;
}
/* 搜索遮罩层 */
.search_overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100px; /* 高度与导航栏一致则挡住导航栏 */
    background: #fff;
    z-index: 200; /* 高于导航栏 */
    display: flex;
    align-items: center;
    transform: translateY(-100%); /* 默认隐藏在上方 */
    transition: transform 0.3s ease-in-out;
}

/* 激活状态 */
.search_overlay.active {
    transform: translateY(0);
}

.search_container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    padding: 0 50px;
    position: relative;
}
.search_container form{
    width: 100%;
}
.search_input {
    width: 100%; 
    border: none; 
    outline: none;
    font-size: 1.2rem; 
    padding: 10px 0;
    border-bottom: 2px solid #333;
}

.close_search {
    cursor: pointer; 
    font-size: 24px;
    margin-left: 20px;
    color: #999;
}
/* 汉堡菜单按钮样式 */
.menu_toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 25px;
    height: 18px;
    cursor: pointer;
    margin-left: 20px;
}
.menu_toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: #333;
    transition: 0.3s;
}

/* 菜单遮罩层 */
.menu_overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.98); /* 白色背景 */
    z-index: 300;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.menu_overlay.active {
    opacity: 1;
    visibility: visible;
}

.menu_container {
    padding: 100px 50px;
    height: 100%;
    overflow-y: auto;
    position: relative;
}

.close_menu {
    position: absolute;
    top: 30px;
    right: 50px;
    font-size: 30px;
    cursor: pointer;
    color: #333;
}

/* 菜单列表 */
.dialog_menu_list {
    list-style: none;
    text-align: center;
}
.dialog_menu_list > li {
    margin-bottom: 30px;
}
.dialog_menu_list > li > a {
    font-size: 2rem;
    font-weight: bold;
    color: #333;
    text-decoration: none;
}
.dialog_menu_list > li.active > a {
    color: #004495;
}

/* 二级菜单样式 */
.dialog_son_menu {
    margin-top: 15px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.dialog_son_menu a {
    color: #666;
    font-size: 1.1rem;
}
.header_bg {
    background-color: #FFF !important;
}
.header_pc {
    display: flex;
    max-width: 1560px;
    margin: 0 auto;
    height: 100px;
    align-items: center;
    justify-content: space-between;
    gap: 52px;
}
.header_logo {
    width: 213px;
    height: 38px;
}
.header_logo img {
    width: 100%;
    height: 100%;
}
.header_left {
    display: flex;
    gap: 52px;
    align-items: center;
}
.header_menu ul {
    display: flex;
    gap: 52px;
}
.header_menu ul li {
    height: 100px;
    display: flex;
    cursor: pointer;
    align-items: center;
    position: relative;
}
.header_menu .active .head_text {
    color: #004495;
}
/*.header_menu .active .second_nav {*/
/*    display: block;*/
/*}*/
.header_menu_a {
    position: relative;
}
.second_nav {
    z-index: 9;
    display: flex;
    position: absolute;
    top: 100%;
    background: #FFF;
    padding: 14px 28px;
    border-bottom-left-radius: 5px;
    border-radius-bottom-right: 5px;
}
.second_nav a,
.second_nav span{
    display: block;
    white-space: nowrap;
    padding: 4px 0;
}
.second_nav a {
    color: #666;
}
.second_nav a:hover {
    color: #004495;
}
.header_menu .active:after {
    width: 30px;
}
.header_menu ul li:hover .head_text {
    color: #004495;
}
.header_menu ul li:hover .second_nav {
    display: block;
}
.header_menu ul li:after {
    content: "";
    width: 0;
    height: 3px;
    position: absolute;
    background-color: #004495;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    transition: all .3s ease;
}
.header_menu ul li:hover:after {
    width: 30px;
}
.header_menu .second_nav {
    display: none;
}
.header_menu .mid_cell {
    font-size: 14px;
    color: #666;
    font-weight: 500;
}
.header_search {
    display: flex;
    gap: 30px;
    align-items: center;
}
.header_search .search_icon svg{
    width: 21px;
    height: auto;
    cursor: pointer;
}
/* 保持你原本的胶囊样式 */
.toLanguage {
    width: 87px;
    height: 31px;
    border: 2px solid #333;
    border-radius: 50px;
    cursor: pointer;
    position: relative; /* 必须加这一行，作为下拉框的定位基准 */
    transition: background 0.3s;
}

/* 原本的内部居中样式 */
.toLanguage .cn {
    width: 100%;
    height: 100%;
    display: flex;
    color: #333;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    gap: 10px;
}

/* 箭头旋转动画 */
.arrow_icon {
    width: 10px;
    height: 10px;
    transition: transform 0.3s;
    cursor: pointer;
}

/* 新增：下拉菜单样式 */
.lang_dropdown {
    position: absolute;
    top: 35px; /* 距离胶囊底部一点距离 */
    left: 50%;
    transform: translateX(-50%) translateY(10px); /* 居中并向下偏移 */
    background-color: #fff;
    border: 1px solid #eee;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    width: 100px; /* 比胶囊稍微宽一点更好看 */
    padding: 8px 0;
    
    /* 默认隐藏 */
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

/* 鼠标移上去的效果 */
.toLanguage:hover {
    background-color: #f8f8f8;
}

.toLanguage:hover .lang_dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.toLanguage:hover .arrow_icon {
    transform: rotate(180deg); /* 箭头转上去 */
}

/* 下拉项的具体样式 */
.lang_dropdown a {
    display: block;
    padding: 8px 15px;
    color: #333;
    font-size: 14px;
    text-decoration: none;
    text-align: center;
    transition: background 0.2s;
}

.lang_dropdown a:hover {
    background-color: #004495;
    color: #fff;
}

/* 装饰：下拉菜单的小箭头（可选） */
.lang_dropdown::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid #fff;
}




.banner_tab {
    display: flex;
    gap: 30px;
    margin-top: 30px;
}
.banner_tab_item {
    padding: 22px 60px;
    border: 1px solid #FFF;
    cursor: pointer;
}
.banner_tab_item a,
.banner_tab_item p{
    font-size: 24px;
    color: #FFF;
}
.banner_tab_active {
    border: 1px solid #004459;
    background-color: #00469b;
}


.banner_other {
    position: relative;
    width: 100%;
}
.banner_other img {
    width: 100%;
}
.banner_content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translateX(-50%) translateY(-50%);
    text-align: center;
}
.banner_content h2 {
    font-size: 34px;
    color: #FFF;
    padding-bottom: 43px;
    font-weight: bold;
    position: relative;
    white-space: nowrap;
}
.banner_content h2:after {
    position: absolute;
    content: "";
    width: 50px;
    height: 4px;
    background-color: #FFF;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
}
.banner_content h4 {
    font-size: 14px;
    line-height: normal;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.7);
}



/*首页*/
.banner {
    width: 100%;
    position: relative;
    cursor: pointer;
}
.banner img {
    width: 100%;
}
.pc {
    display: block;
}
.mobile {
    display: none;
}

.home_title {
    position: relative;
}
.home_title .home_title_name {
    font-size: 22px;
    color: #333;
    font-weight: bold;
    margin-bottom: 60px;
    position: relative;
}
.home_title .home_title_name:after{
    position: absolute;
    content: "";
    
    width: 40px; 

    border-top: 6px solid #004495; 
    border-right: 5px solid transparent;

    bottom: -20px;
    left: 0;
}
.home_title p {
    position: absolute;
    bottom: -52px;
    color: #666666;
    font-size: 14px;
}



.main_container {
    max-width: 1560px;
    margin: 0 auto;
    padding: 70px 0;
}
.home_about {
    padding-bottom: 76px;
}
.home_about_company {
    display: flex;
    gap: 80px;
}
.home_about_left {
    flex: 1;
}
.home_about_right {
    width: 750px;
    height: 400px;
}
.home_about_right img,
.home_about_right video{
    /*height: 100%;*/
    width: 100%;
    /*border: 1px solid #f5f5f5;*/
}
.home_about_content {
}
.info_more {
    display: flex;
    justify-content: space-between;
}
.info_more a {
    color: #004495;
}
.home_about_content h3{
    font-size: 22px;
    color: #333;
    margin-bottom: 14px;
}
.home_about_content h3:nth-of-type(2) {
    margin-top: 40px;
}
.home_about_content p{
    line-height: 36px;
    font-size: 14px;
    color: #666;
    text-indent: 2em;
}
.home_about_data {
    display: flex;
    gap: 132px;
    margin-top: 38px;
}
.home_about_data_item {
    width: calc((100% - 264px) / 3);
    text-align: center;
}
.home_about_data_num {
    display: flex;
    justify-content: center;
}
.home_about_data_num p {
    color: #004495;
    font-weight: bold;
    font-size: 48px;
}
.home_about_data_num span {
    color: #004495;
    font-size: 24px;
}
.home_about_data_remark {
    margin-top: 18px;
    font-size: 14px;
    font-weight: 500;
}



.home_product_list {
    display: flex;
    gap: 45px;
}
.home_product_item {
     width: calc((100% - 135px) / 3);
     background: #FFFFFF;
    box-shadow: 0px 1px 15px 0px rgba(153,153,153,0.3);
    border-radius: 20px;
    cursor: pointer;
    overflow: hidden;
}
.home_product_item:hover .home_product_item_img img {
    transform: scale(1.1);
}
.home_product_item:hover h4:after {
    width: 64px;
}
.home_product_item_img img {
    width: 100%;
    transition: all .3s ease;
}
.home_product_item_content {
    padding: 0 31px 31px 31px;
}
.home_product_item_content h4 {
    color: #333333;
    font-size: 18px;
    font-weight: 600;
    padding-bottom: 20px;
    position: relative;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.home_product_item_content h4:after {
    content: "";
    width: 32px;
    height: 3px;
    position: absolute;
    bottom: 8px;
    left: 0;
    background-color: #004495;
    transition: all .3s ease;
}
.home_product_item_content p{
    color: #6d6d6d;
    font-size: 14px;
    line-height: 24px;
    display: -webkit-box;           /* 必须结合的属性，将对象作为弹性伸缩盒子模型显示 */
    -webkit-line-clamp: 2;          /* 用来限制在一个块元素显示的文本的行数 */
    -webkit-box-orient: vertical;   /* 必须结合的属性，设置伸缩盒子的子元素排列方式 */
    overflow: hidden;               /* 隐藏超出的内容 */
    text-overflow: ellipsis;        /* 多行溢出时显示省略号 */
}
.home_product_item_more {
    color: #004495;
    font-size: 14px;
    margin-top: 24px;
}
.home_product_item_more span {
    color: #004495;
    font-size: 14px;
    display: inline-block;
    margin-top: 22px;
    font-weight: 600;
}
.products_swiper {
    max-width: 1580px;
    margin: 0 auto;
    position: relative;
    padding: 10px; 
    overflow: hidden; 
}
/* 1. 父级容器作为定位基准 */
.home_products {
    max-width: 1580px;
    margin: 0 auto;
    position: relative; /* 必须 */
    padding-bottom: 80px;
}
.product_content {
    position: relative;
}
.product_content span{
    color: #FFF;
    background-color: #004495;
    padding: 12px 25px;
    font-size: 14px;
    border-radius: 50px;
    display: inline-block;
    margin-top: 22px;
}



.home_application {
    padding-bottom: 80px;
}
.home_application_list {
    display: flex;
    gap: 36px;
    flex-wrap: wrap;
}
.home_app_item {
    width: calc((100% - 72px) / 3);
    height: 290px;
    background: #FFFFFF;
    box-shadow: 0px 1px 15px 0px rgba(153,153,153,0.3);
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: all .3s ease;
    position: relative;
}

.home_app_img {
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

.home_app_img img {
    width: 100%;
    height: 100%;
    transition: all .3s ease;
    object-fit: cover;
}

.home_app_item:hover img {
    transform: scale(1.1);
}

.home_app_item::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 120px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
    z-index: 2;
    pointer-events: none;
}

.home_app_contnet {
    width: 100%;
    height: 90px;
    padding: 0 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: absolute;
    bottom: 0px;
    left: 0;
    z-index: 3;
    box-sizing: border-box;
}

.home_app_head {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

.home_app_head img {
    width: 21px;
    height: 16px;
}

.home_app_head p {
    font-size: 18px;
    color: #fff;
    margin: 0;
    position: relative;
    transition: all .3s ease;
}

.home_app_head p:before{
    position: absolute;
    content: "";
    width: 30px;
    height: 4px;
    background: #FFF;
    top: -15px;
    right: 0px;
    transition: all .3s ease;
}
.home_app_item:hover .home_app_head p:before {
    width: 60px;
}
.home_app_item:hover .home_app_head p {
    letter-spacing: 2px;
}
.home_news {
    padding-bottom: 80px;
}
.home_news_content {
    display: flex;
    gap: 50px;
}
.home_news_left,
.home_news_right{
    width: calc((100% - 50px) / 2);
}
.home_news_left img {
    transition: all .3s ease;
}
.home_news_left img:hover {
    transform: scale(1.1);
}
.home_news_img {
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    height: 100%;
}
.home_news_img img {
    width: 100%;
    height: 580px;
    object-fit: cover;
}
.hoem_news_img_content {
    padding: 30px;
    padding-top: 100px;
    position: absolute;
    bottom: 0px;
    width: 100%;
    background: linear-gradient(0deg, #004495 0%, #00449500 100%);
}
.hoem_news_img_content {
    color: #FFF;
}
.hoem_news_img_content p {
    font-size: 22px;
    font-weight: 500;
}
.home_news_item_remark {
    display: flex;
    width: 100%;
    font-size: 14px;
    justify-content: space-between;
    margin-top: 18px;
    color: rgba(255, 255 , 255, 0.7);
}
.home_news_item_remark span:first-child {
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    width: 60%;
}
.home_news_item_remark span {
    white-space: nowrap;
}
.home_new_text {
    display: flex;
    gap: 30px;
    border-bottom: 1px dashed #999;
    padding-bottom: 23px;
    padding-top: 50px;
    position: relative;
    cursor: pointer;
}
.home_new_text:hover:after {
    width: 58px;
}
.home_new_text:hover .home_new_text_date {
    color: #004495;
}
.home_new_text:after {
    position: absolute;
    content: "";
    width: 0;
    height: 4px;
    border-radius: 2px;
    background-color: #004495;
    left: 0;
    bottom: -2px;
    transition: all .3s ease;
}
.home_new_text:first-child {
    padding-top: 0px;
}
.home_new_text_date {
    white-space: nowrap;
    color: #999;
    transition: all .3s ease;
}
.home_new_text_date p {
    font-size: 44px;
    padding-bottom: 6px;
} 
.home_new_text_date span {
    font-size: 14px;
}
.home_new_text_content h4 {
    font-size: 18px;
    color: #333;
}
.home_new_text_content p {
    font-weight: 400;
    font-size: 14px;
    margin-top: 18px;
    color: #999999;
    line-height: 26px;
    
    display: -webkit-box;           /* 必须结合的属性，将对象作为弹性伸缩盒子模型显示 */
    -webkit-line-clamp: 2;          /* 用来限制在一个块元素显示的文本的行数 */
    -webkit-box-orient: vertical;   /* 必须结合的属性，设置伸缩盒子的子元素排列方式 */
    overflow: hidden;               /* 隐藏超出的内容 */
    text-overflow: ellipsis;
}

.home_hzhb {
    width: 100%;
}
.home_hzhb img {
    width: 100%;
}





/*关于我们*/
.company {
    display: flex;
    gap: 95px;
    padding-bottom: 40px;
    align-items: center;
}
.company_left {
    width: 40%;
}
.company_left p {
    line-height: 38px;
    text-indent: 2em;
    color: #666666;
    font-size: 14px;
    
}
.company_right {
    width: 60%;
    overflow: hidden;
}
.company_right img {
    width: 100%;
    transition: all .3s ease;
}
.company_right img:hover {
    transform: scale(1.1);
}
.company_bottom {
    display: flex;
    padding-bottom: 40px;
}
.company_item {
    width: calc((100% - 30px) / 2);
    padding: 28px;
    background-color: #FFF;
    border-radius: 5px;
    text-align: center;
}
.company_item div {
    display: flex;
    justify-content: center;
    padding-bottom: 21px;
}
.company_item p,
.company_item p span{
    font-size: 54px;
    color: #004495;
    font-weight: bold;
}
.company_item span {
    font-size: 27px;
    color: #333;
}
.company_item text {
    font-size: 20px;
    color: #333;
}


.qywh {
    max-width: 1580px;
    margin: 0 auto;
}
.qywh_content {
    display: flex;
    gap: 30px;
}
.qywh_item {
    background: rgba(255, 255, 255, 0.7);
    box-shadow: 0px 1px 15px 0px rgba(153,153,153,0.3);
    border-radius: 20px;
    width: calc((100% - 90px) / 4);
    height: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.qywh_item img {
    width: 43px;
    height: 39px;
}
.qywh_remark {
    margin-top: 33px;
    text-align: center;
}
.qywh_remark h2 {
    font-size: 22px;
    color: #333;
}
.qywh_remark p {
    font-size: 14px;
    color: #666;
    margin-top: 15px;
    line-height: 24px;
    height: 48px;
}

.history {
    padding-bottom: 20px;
}
.history_content {
    position: relative;
}
.history_line {
    position: absolute;
    top: 47px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: #d1d9e6;
    z-index: -1;
}
.history_year {
    font-size: 22px;
    color: #666;
    padding-bottom: 83px;
}
.history_year P {
    padding-bottom: 20px;
    font-weight: 500;
    margin-left: -8%;
}
.history_circle {
    width: 12px;
    height: 12px;
    background-color: #004495;
    border-radius: 50%;
    border: 3px solid rgba(0, 68, 149, 0.7);
}

.history_desc_content {
    display: flex;
    gap: 82px;
    align-items: center;
}

.history_desc_left {
    width: 50%;
}
.history_desc_left img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.history_desc_img {
    width: 100%;
    height: 410px;
    border-radius: 20px;
    overflow: hidden;
}
.history_desc_right h4 {
    font-size: 36px;
    color: #004495;
    font-weight: bold;
    margin-bottom: 44px;
    position: relative;
}
.history_desc_right h4:after {
    position: absolute;
    width: 83px;
    height: 1px;
    content: "";
    left: 0px;
    bottom: -20px;
    background-color: #004495;
    border-radius: 10px;
}
.history_desc_right p {
    line-height: 45px;
    font-size: 14px;
    color: #333;
}
.history_item.swiper-slide-active p {
    color: #004495;
    font-size: 26px;
    padding-bottom: 16px;
}


.cert_container {
    display: flex;
    row-gap: 30px;
    column-gap: 80px;
    flex-wrap: wrap;
    padding-bottom: 40px;
}
.cert_item { 
    width: calc((100% - 320px) / 5);
    cursor: pointer;
}
.cert_item_img {
    width: 100%;
    overflow: hidden;
}
.cert_item_img img {
    width: 100%;
    transition: all .3s ease;
}
.cert_item:hover img {
    transform: scale(1.1);
}
.cert_item_name {
    text-align: center;
    margin-top: 10px;
}
.cert_item_name p {
    color: #666;
    line-height: 28px;
    font-size: 14px;
}






/*产品中心*/
.cat_container {
    background-color: #FFF;
    height: 100px;
}
.cat_list {
    max-width: 1560px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    gap: 140px;
    justify-content: center;
    flex-wrap: wrap;
}
.cat_item {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .3s ease;
}
.cat_item h3 {
    font-size: 18px;
    color: #333;
}
.cat_item.active {
    position: relative;
    transition: all .3s ease;
}
.cat_item.active:after,
.cat_item:hover:after{
    position: absolute;
    content: "";
    width: 50px;
    height: 4px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background-color: #004495;
    transition: all .3s ease;
}
.cat_item.active h3,
.cat_item:hover:after,
.cat_item:hover h3{
    color: #004495;
    transition: all .3s ease;
}

.products {
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
    padding-bottom: 40px;
}
.product_center {
    background: #004495;
    color: #fff;
    font-size: 24px;
    font-weight: bold;
    padding: 20px 40px;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}
.products_container {
    display: flex;
    gap: 4%;
    width: 100%;
}
.products_left {
    width: calc(25% - 4%);
}
.produict_cat_item {
    display: flex;
    background: #FFF;
    flex-direction: column;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;
}
.produict_cat_item .product_cat_item_a {
    color: #333;
    font-size: 20px;
    padding: 20px 40px;
    transition: all .3s ease;
    display: flex;
    justify-content: space-between;
}
.produict_cat_item .product_cat_item_a a{
    color: #333;
}
.produict_cat_item .active,
.produict_cat_item .product_cat_item_a:hover
 {
    background: #004495;
    color: #FFF;
}
.produict_cat_item .active a {
    color: #fff;
}

.product_cat_item_a.active svg path {
    fill: #FFF;
}
.produict_cat_item .product_cat_item_a:hover a {
    color: #FFF;
}
.produict_cat_item h3 {
    font-size: 16px;
}
.sub_cat_list {
    display: none;
    height: auto;
}
.sub_cat_list a {
    display: block;
    font-size: 14px;
    color: #333;
    padding: 20px 60px;
    padding-right: 0px;
}
/* 2. 箭头基础样式与动画过渡 */
.product_cat_item_a .arrow_icon {
    display: inline-block; /* 必须转为块级或行内块级，否则 transform 旋转无效 */
    cursor: pointer;
    font-size: 12px;
    /* 关键：设置旋转动画的过渡时间和曲线（0.3秒平滑旋转） */
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94); 
}
.product_cat_item_a .arrow_icon img {
    width: 100%;
    height: 100%;
}
.product_cat_item_a:hover svg path {
    fill: #FFF;
}
/* 3. 展开状态：当被点击后，箭头顺时针旋转 180 度（倒三角变成正三角 ▲） */
.product_cat_item_a .open svg{
    transform: rotate(180deg);
}
.sub_cat_list:hover,
.sub_cat_list:hover h4{
    background-color: #004495;
    color: #FFF;
}
.sub_cat_list h4:hover {
    color: #fff !important;
}
.products_right {
    width: 75%;
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}
.products_right .product_item {
    width: calc((100% - 72px) / 3);
    background: #FFFFFF;
    box-shadow: 0px 1px 15px 0px rgba(153,153,153,0.3);
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
}
.sample .product_item{
    width: calc((100% - 108px) / 4);
    background: #FFFFFF;
    box-shadow: 0px 1px 15px 0px rgba(153,153,153,0.3);
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
.product_item:hover img{
    transform: scale(1.1);
}
.product_img {
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}
.product_img img {
    height: 275px;
    max-width: 100%;
    max-height: 100%;
    object-fit: cover;
    transition: all .3s ease;
}

.product_content {
    padding: 0 40px 40px 40px;
    margin-top: 22px;
}
.product_content h2 {
    font-size: 18px;
    color: #333;
    padding-bottom: 30px;
    font-weight: 500;
    position: relative;
}
.product_content h2:after {
    position: absolute;
    content: "";
    width: 84px;
    height: 4px;
    left: 0;
    bottom: 15px;
    transition: all .3s ease;
    background: linear-gradient(to right, #004495 0%, #FFF 100%);
}
.product_item:hover h2:after {
    width: 124px;
}
.product_content p {
    font-size: 14px;
    min-height: 32px;
    color: #999;
    line-height: 30px;
}
.product_content {
    
}



/*产品详情*/
.product_container {
    background-color: #fafafa;
    padding: 80px 0;
}
.product_detail {
    max-width: 1360px;
    margin: 0 auto;
    display: flex;
    gap: 60px;
    align-items: center;
}
.prdocut_img {
    width: 512px;
    height: 440px;
    background: #FFFFFF;
    box-shadow: 0px 2px 15px 0px rgba(153,153,153,0.35);
    border-radius: 20px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}
.prdocut_img img {
    width: 100%;
    /*height: 100%;*/
    object-fit: cover;
    transition: all .3s ease;
}
.prdocut_img:hover img {
    transform: scale(1.1);
}

.product_right h1 {
    position: relative;
    font-size: 22px;
    color: #333;
    padding-bottom: 40px;
    font-weight: bold;
}
.product_right h1:after {
    position: absolute;
    content: "";
    width: 84px;
    height: 4px;
    left: 0;
    bottom: 15px;
    background: linear-gradient(to right, #004495 0%, #FFF 100%);
}
.product_right p {
    line-height: 36px;
    color: #666;
    font-size: 14px;
}
.product_btn {
    display: flex;
    margin-top: 53px;
    gap: 37px;
}
.product_btn_item {
    width: 324px;
    height: 72px;
    padding: 0 28px;
    background-color: #004495;
    color: #FFF;
    display: flex;
    align-items: center;
    cursor: pointer;
    justify-content: space-between;
}
.product_btn_item:hover img{
    transform: scale(1.2);
}
.product_btn_item p {
    color: #FFF;
    font-size: 14px;
}
.product_btn_item img {
    width: 24px;
    height: auto;
    transition: all .3s ease;
}
.product_btn_item:last-child {
    background-color: #f25b08;
}

.product_main_container {
    max-width: 1360px;
    margin: 0 auto;
    padding: 78px 0;
}

.product_row h4 {
    font-size: 22px;
    color: #333;
    padding-left: 19px;
    position: relative;
    font-weight: bold;
}
.product_row h4:after {
    position: absolute;
    content: "";
    width: 6px;
    height: 22px;
    background-color: #004495;
    border-radius: 3px;
    left: 0px;
    top: 0px;
}
.product_row_item {
    padding: 29px 0 43px 0;
    line-height: 40px;
    color: #666;
}
.product_spec_table {
    width: 100%;
    /* 1. 必须使用 separate 模式，否则圆角失效 */
    border-collapse: separate; 
    border-spacing: 0;
    
    /* 2. 设置圆角 */
    border: 1px solid #e1e1e1;
    border-radius: 10px; /* 圆角大小 */
    overflow: hidden;   /* 确保子元素（td）不溢出遮挡圆角 */
    
    margin: 20px 0;
}

.product_spec_table td {
    padding: 4px 18px;
    font-size: 14px;
    /* 3. 内部边框只给下边和右边，避免重叠 */
    border-bottom: 1px solid #eee;
    border-right: 1px solid #e1e1e1;
}

/* 4. 处理样式：最后一列去掉右边框，最后一行去掉下边框 */
.product_spec_table td:last-child {
    border-right: none;
}

.product_spec_table tr:last-child td {
    border-bottom: none;
}

/* --- 第一列背景样式 --- */
.product_spec_table td:first-child {
    background-color: #f7f9fc;
    width: 15%;
    color: #333;
    font-weight: 600;
    font-size: 14px;
}

/* --- 第二列样式 --- */
.product_spec_table td:last-child {
    background-color: #fff;
    color: #666;
    font-size: 14px;
    font-weight: 500;
}

.sample {
    display: flex;
    flex-wrap: wrap;
    gap: 22px;
    padding-bottom: 60px;
}
.sample_item {
    width: calc((100% - 44px) / 3);
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
}
.sample_item img {
    width: 100%;
    transition: all .3s ease;
}
.sample_item:hover img {
    transform: scale(1.1);
}
.article_nav {
    display: flex;
    justify-content: center;
    gap: 108px;
}
.nav_item {
    font-size: 14px;
    color: #666;
}
.article_nav a,
.article_nav span{
    color: #999;
    font-size: 14px;
    font-weight: 500;
}
.article_nav a:hover,
.article_nav span:hover {
    color: #00469b;
}
.nav_arrow {
    color: #004495 !important;
    margin: 0 6px;
}
.back {
    display: flex;
    justify-content: center;
    margin-top: 73px;
}
.back a{
    cursor: pointer;
    background-color: #004495;
    border-radius: 50px;
    padding: 19px 46px;
    display: flex;
    color: #FFF;
    font-size: 22px;
}



/*应用领域*/
.cat_app_container {
}
.cat_app_hr {
    border: 0px;
    height: 6px;
    background: #F5F5F5;
}
.cat_app_list {
    display: flex;
    justify-content: flex-start;
    gap: 70px;
}
.cat_app_item {
    padding: 42px 0;
    color: #333;
    font-size: 20px;
    font-weight: 500;
    border-radius: 50px;
    transition: all .3s ease;
    position: relative;
}
.cat_app_item:after {
    position: absolute;
    content: "";
    width: 0;
    height: 4px;
    border-radius: 2px;
    bottom: 0px;
    left: 50%;
    transform: translateX(-50%);
    background: #004495;
    transition: all .3s ease;
}
.cat_app_item h3 {
    font-size: 16px;
}
.cat_app_item:hover:after,
.cat_app_list .active.cat_app_item:after{
    width: 43px;
}

.cat_app_item.active h3 {
    color: #004495;
}
.service {
    padding-top: 20px;
    padding-bottom: 40px;
}
.service_container {
    display: flex;
    gap: 28px;
    align-items: center;
    padding: 28px 0;
}
.service_left {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 45%;
    padding-left: 11%;
}
.service_item {
    display: flex;
    gap: 20px;
    align-items: center;
}
.service_item .service_num {
    display: flex;
    justify-content: center;
    flex-shrink: 0;
    color: #CCC;
    height: 32px;
    font-size: 28px;
    line-height: 32px;
    text-align: center;
    font-weight: bold;
}
.service_content {
    display: flex;
    line-height: 30px;
    color: #666;
    font-size: 14px;
}
.service_content span:first-child{
    white-space: nowrap;
}
.service_line {
    display: flex;
    justify-content: center;
    width: 33px;
}
.service_line span{
    border-right: 2px dashed #CCC;
    height: 24px;
}
.service_right {
    flex: 1;
}
.service_img {
    width: 100%;
    height: 100%;
    overflow: hidden;
    /*border-radius: 20px;*/
    cursor: pointer;
}
.service_img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all .3s ease;
}
/*.service_img:hover img {*/
/*    transform: scale(1.1);*/
/*}*/
.primarylc {
    padding-bottom: 40px;
}
.primary_container {
     position: relative;
     display: flex;
     gap: 2px;
     justify-content: space-between;
}
.primary_item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
}
.primary_content strong {
    font-size: 16px;
    color: #333;
}
.primary_content P {
    font-size: 14px;
    color: #999;
    margin-top: 10px;
    line-height: 16px;
}
.primary_content {
    background: rgb(0, 68, 149, 0.1);
    border-radius: 10px;
    width: 220px;
    text-align: center;
    padding: 30px;
}
.primary_top {
    padding-bottom: 20px;
}
.primary_step {
    padding-bottom: 20px;
}
.primary_circle {
    position: relative;
}
.primary_circle:after {
    position: absolute;
    content: "";
    width: 10px;
    height: 10px;
    background: #004495;
    border-radius: 50px;
    left: 50%;
    transform: translateX(-50%);
}
.primary_hr {
    position: absolute;
    width: 100%;
    border: 1px dashed #999;
    top: 40px;
}


.product_display {
    margin-bottom: 80px;
}
.pd_container {
    display: flex;
    gap: 34px;
}
.pd_item {
    background-color: #fff;
    flex: 1;           /* 默认大家平分空间 */
    min-width: 150px;  /* 设定一个最小宽度，防止缩得太小 */
    border-radius: 20px;
    overflow: hidden;
    transition: all .3s ease;
}
.pd_img {
    width: 100%;
    height: 400px;
}
.pd_img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 1 / 1;
}
.pd_content {
    display: flex;
    justify-content: space-between;
    padding: 30px 43px;
    align-items: center;
}
.pd_container .active {
    background-color: #004495 !important;
}
.deivceName {
    font-size: 16px;
    color: #333;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}
.viewMore {
    display: none;
    font-size: 14px;
    padding: 12px 24px;
    background-color: #FFF;
    color: #004495;
    border-radius: 50px;
    white-space: nowrap;
}
.pd_container .active .viewMore {
    display: block;
}
.pd_container .active .deivceName {
    color: #EEE !important;
}
.pd_container .active {
    flex: 3;
}

/* --- 基础样式保持不变 --- */
.product_display { margin-bottom: 80px; }
.pd_container { display: flex; gap: 34px; }

.pd_item {
    background-color: #fff;
    flex: 1; /* 默认等宽 */
    min-width: 150px;
    border-radius: 20px;
    overflow: hidden;
    transition: all .5s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative; /* 为遮罩层做定位基准 */
}

.pd_img {
    width: 100%;
    height: 400px;
    position: relative; /* 为遮罩层做定位基准 */
    overflow: hidden;
}

/* 媒体容器，放置图片和动态创建的视频 */
.media_container {
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 1; /* 媒体层 */
}

.poster_img, .media_container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    transition: opacity 0.3s ease;
}

/* 遮罩层基础样式 - 默认隐藏 */
.pd_mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* 黑色半透明遮罩 */
    display: flex;
    justify-content: center;
    align-items: center;
    
    opacity: 0;           /* 初始透明 */
    visibility: hidden;   /* 不占用鼠标事件 */
    z-index: 10;          /* 确保在图片/视频上面 */
    transition: all 0.3s ease;
    cursor: pointer;
}

/* 播放图标样式 */
.play_icon {
    color: #FFF;
    font-size: 60px;
    font-style: normal;
    text-shadow: 0 0 10px rgba(0,0,0,0.5);
    transition: transform 0.2s ease;
}
.pd_mask svg {
    transition: all .3s ease;
}

/* 鼠标悬停在图标上时的小动画 */
.pd_mask:hover .play_icon {
    transform: scale(1.1);
}
.pd_mask:hover svg {
    transform: scale(1.1);
}


/* --- 关键：ACTIVE 状态下的样式 --- */

/* 1. Active 项变宽 */
.pd_container .active {
    flex: 3;
    background-color: #004495 !important;
}

/* 2. 在 Active 项中显示遮罩 */
.pd_container .active .pd_mask {
    opacity: 1;
    visibility: visible;
}

/* 3. 如果视频已经在播放，可以隐藏遮罩 (需要 JS 配合) */
.pd_container .active.playing .pd_mask {
    opacity: 0;
    visibility: hidden;
}

/* --- 内容样式保持不变 --- */
.pd_content { display: flex; justify-content: space-between; padding: 30px 43px; align-items: center; }
.deivceName { font-size: 16px; color: #333; transition: color 0.3s; }
.pd_container .active .deivceName { color: #EEE !important; }

.viewMore {
    opacity: 0; visibility: hidden; transition: all .3s ease;
    font-size: 14px; padding: 12px 24px; background-color: #FFF; color: #004495; border-radius: 50px;
}
.pd_container .active .viewMore { opacity: 1; visibility: visible; }

.bzxc_container {
    
}
.bzxc_list {
    display: flex;
    gap: 30px;
}
.bzxc_item {
    width: calc((100% - 80px) / 4);
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
}
.bzxc_item:hover img {
    transform: scale(1.1);
}

.bzxc_item img {
    width: 100%;
    transition: all .3s ease;
}






/*服务中心*/
.service_info {
    margin-bottom: 70px;
}
.service_info_list {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}
.service_info_item {
    width: calc((100% - 60px) / 3);
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #FFFFFF;
    box-shadow: 0px 2px 15px 0px rgba(153,153,153,0.35);
    padding: 40px 0;
    border-radius: 20px;
    cursor: pointer;
}
.service_info_item img {
    width: 40px;
    height: 40px;
    transition: all .3s ease;
}
.service_info_item h4 {
    font-size: 14px;
    color: #333;
    margin-top: 20px;
    transition: all .3s ease;
}
.service_info_item p {
    font-size: 14px;
    color: #999;
    margin-top: 13px;
    transition: all .3s ease;
}
.service_info_item:hover img{
    transform: scale(1.1);
}
.service_info_item:hover h4{
    transform: scale(1.1);
}
.service_info_item:hover p{
    transform: scale(1.1);
}


.baozhang {
    margin-bottom: 70px;
}
.baozhang_list {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}
.baozhang_item {
    width: calc((100% -  120px) / 5);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: all .1s ease;
    cursor: pointer;
}
.baozhang_item:hover {
    transform: translateY(-40%) !important;
}
.baozhang_item_circle {
    width: 48px;
    height: 48px;
    background-color: #004495;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2; 
}
.baozhang_item_circle p {
    font-size: 26px;
    color: #FFF;
}
.baozhang_item_text {
    width: 100%;
    border-radius: 20px;
    background: #FFFFFF;
    box-shadow: 0px 2px 15px 0px rgba(153,153,153,0.35);
    padding-top: 53px;
    padding-bottom: 29px;
    text-align: center;
    margin-top: -24px;
    z-index: 1; 
}
.baozhang_item_text P{
    font-size: 14px;
    color: #333;
}

.baoxiu {
    margin-bottom: 70px;
}

.baoxiu_form {
    
}
#product_contact_form {
    display: flex;
    flex-wrap: wrap;
    gap: 34px;
}
.baoxiu_item {
    width: calc((100% - 34px) / 2);
    display: flex;
    align-items: center;
}
.textarea_item {
    width: 100%;
}
.textarea_item textarea {
    width: 78%;
}
.baoxiu_item_text {
    margin-right: 20px;
    min-width: 77px;
}
.baoxiu_item_text span {
    color: red;
}
.baoxiu_item input,
.baoxiu_item select,
.baoxiu_item textarea{
    flex: 1;
    background: #FFFFFF;
    border-radius: 14px;
    border: 1px solid #CCCCCC;
    padding: 12px 20px;
}
.submit_wrap {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.captcha_inner {
    display: flex;
    align-items: center;
    gap: 20px;
}
.submit_wrap button {
    background-color: #004495;
    color: #FFF;
    border-radius: 50px;
    cursor: pointer;
    border: 0px solid #FFF;
    padding: 12px 35px;
    font-size: 14px;
}
/* 1. 隐藏原生箭头 */
.select_wrapper select {
    appearance: none;       /* 标准写法 */
    -webkit-appearance: none; /* Chrome/Safari */
    -moz-appearance: none;    /* Firefox */
    
    padding-right: 30px;    /* 为自定义箭头留出右侧空间，防止文字盖住箭头 */
    position: relative;
    cursor: pointer;
}

/* 2. 容器设置为相对定位，作为箭头的坐标系 */
.select_wrapper {
    position: relative; 
}

/* 3. 使用伪元素制作自定义箭头 */
.select_wrapper::after {
    content: '';
    /* 这里的 content 也可以换成 iconfont 的编码，比如 '\e600' */
    
    /* 绘制一个小三角形 */
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid #666; /* 箭头的颜色 */
    
    /* 核心：通过绝对定位调位置 */
    position: absolute;
    right: 15px;   /* 距离右边多远 */
    top: 50%;      /* 居中放置 */
    transform: translateY(-50%); /* 垂直方向完美居中 */
    
    pointer-events: none; /* 确保点击箭头时也能触发 select 的下拉 */
    z-index: 5;    /* 确保在最上层，因为你之前提到过 z-index */
}






/*联系我们*/
.contactus {
    display: flex;
    gap: 100px;
    justify-content: space-between;
}

.contactus_left {
    display: flex;
    flex-direction: column;
    gap: 42px;
}
.contactus_left div {
    display: flex;
    flex-direction: column;
    gap: 32px;
}
.contactus_left h3 {
    font-size: 20px;
    color: #333;
    font-weight: 600;
}
.contactus_left p {
    font-size: 14px;
    color: #666;
}
.contactus_right {
    overflow: hidden;
}
.contactus_right img {
    transition: all .3s ease;
}
.contactus_right:hover img{
    transform: scale(1.1);
}

/*新闻列表*/
.news_list {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}
.news_item {
    width: calc((100% - 90px) / 4);
    background: #FFFFFF;
    box-shadow: 0px 2px 15px 0px rgba(153,153,153,0.35);
    border-radius: 20px;
    overflow: hidden;
}
.news_img {
    width: 100%;
    height: 300px;
    overflow: hidden;
    padding: 28px;
}
.news_img img {
    width: 100%;
    height: 100%;
    transition: all .3s ease;
    object-fit: cover;
}
.news_item .news_img:hover img {
    transform: scale(1.1);
}
.news_item:hover .news_more p:last-child {
    color: #004495;
}
.news_remark {
    padding: 30px;
}
.news_remark h2 {
    font-size: 22px;
    color: #333;
    padding-bottom: 42px;
    position: relative;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.news_remark h2:after {
    position: absolute;
    content: "";
    width: 84px;
    height: 4px;
    left: 0;
    bottom: 15px;
    background: linear-gradient(to right, #004495 0%, #FFF 100%);
    transition: all .3s ease;
}
.news_item:hover h2:after {
    width: 60%;
}
.news_remark p {
    display: -webkit-box;       /* 必须结合盒模型使用 */
    -webkit-box-orient: vertical; /* 设置伸缩盒对象的子元素的排列方式 */
    -webkit-line-clamp: 2;      /* 指定显示的行数 */
    overflow: hidden;           /* 隐藏超出的部分 */
    text-overflow: ellipsis;    /* 超出部分显示省略号 */
    
    /* 备选：设置行高和最大高度，防止在不支持 webkit 的浏览器中文字溢出 */
    line-height: 1.6;
    max-height: 3.2em;          /* line-height * 2 */
    color: #999999;
}
.news_more {
    display: flex;
    justify-content: space-between;
    margin-top: 61px;
}
.news_more p {
    transition: all .3s ease;
}


/*新闻详情*/
.news_content {
    padding-bottom: 50px;
    margin-bottom: 30px;
    border-bottom: 1px dashed #999;
    line-height: 32px;
}
.news_header h1 {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    color: #004495;
}
.news_header p {
    text-align: center;
    font-size: 14px;
    color: #999;
    margin-top: 20px;
    margin-bottom: 48px;
}
.nextPre {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.nextPre div{
    display: flex;
    gap: 16px;
}
.nextPre p {
    color: #004495;
}
.nextPre span {
    color: #999;
}
.pagination {
    text-align: center;
    margin-top: 70px;
}



































/* 底部背景 */
.footer {
    background-color: #00469b; /* 对应图中的深蓝色 */
    color: #ffffff;
    padding: 60px 0 20px 0;
    font-size: 14px;
}

.container {
    max-width: 1560px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    gap: 58px;
}

/* 左侧 Logo 和联系方式 */
.footer-brand {
    flex: 1.5;
}

.logo img {
    height: 50px;
    margin-bottom: 20px;
}

.contact-info {
    list-style: none;
    margin-bottom: 20px;
}

.contact-info li {
    margin-bottom: 10px;
    opacity: 0.9;
}

.qr-code img {
    width: 100px;
    height: 100px;
    border: 2px solid #fff;
}

/* 右侧链接区域 */
.footer-links {
    flex: 3;
    display: flex;
    justify-content: space-between;
}

.link-group h4 {
    font-size: 14px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
}

.link-group ul {
    list-style: none;
}

.link-group ul li {
    margin-bottom: 10px;
    text-align: center;
}

.link-group ul li a {
    color: #ffffff;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.link-group ul li a:hover {
    opacity: 1;
}

/* 底部版权信息 */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 50px;
    padding-top: 20px;
    text-align: center;
    font-size: 14px;
    opacity: 0.7;
}

.footer-bottom a {
    color: #fff;
    text-decoration: none;
    margin: 0 5px;
}


@media screen and (max-width: 1199px) {
    .header_search {
        display: none;
    }
    .main_container,
    .product_main_container{
        padding: 78px 28px;
    }
    .home_about_company {
        flex-direction: column;
    }
    .home_about_right {
        width: 100%;
    }
    .home_about_company video {
        width: 100%;
    }
    .home_new_text_content h4 {
        text-overflow: ellipsis;
        overflow: hidden;
        white-space: nowrap;
    }
    .home_news_img img {
        height: 100%;
    }
    .home_app_item {
        width: calc((100% - 36px) / 2);
    }
    .qywh_content {
        flex-wrap: wrap;    
    }
    .qywh_item {
        width: calc((100% - 30px) / 2);   
    }
    .cert_container {
        column-gap: 40px;
    }
    .cert_item {
        width: calc((100% - 80px) / 2);
    }
    .product_item {
        width: calc((100% - 36px) / 2);
    }
    .cat_container {
        padding: 0 28px;
    }
    .products_right .product_item {
        width: calc((100% - 48px) / 2);
    }
    .cat_list {
        overflow-x: scroll; 
        flex-wrap: nowrap;
        gap: 60px;
    }
    .product_container {
        padding: 80px 28px;
    }
    .product_detail {
        flex-direction: column;
    }
    .news_item {
        width: calc((100% - 30px) / 2);
    }
    .service_info_item {
        width: calc((100% - 30px) / 2);
    }
    .baozhang_item {
        width: calc((100% - 90px) / 4);
    }
    .contactus {
        flex-direction: column;
        gap: 40px;
    }
    .contactus_right img {
        width: 100%;
    }
}

/* 响应式适配：手机端显示 */
@media (max-width: 997px) {
    .home_about_right {
        height: auto;
        margin-top: 0px !important;
    }
    .pc {
        display: none;
    }
    .mobile {
        display: block;
    }
    .container {
        flex-direction: column;
    }
    .footer-links {
        flex-direction: column;
        margin-top: 30px;
    }
    .link-group {
        margin-bottom: 20px;
    }
    .header_menu {
        display: none;
    }
    .home_about_data {
        gap: 40px;
    }
    .home_about_data_item {
        width: calc((100% - 80px) / 3);
    }
    .home_news_content {
        flex-direction: column;
    }
    .home_news_left,
    .home_news_right {
        width: 100%;
    }
    .home_app_item {
        width: 100%;
    }
    
    .company {
        flex-direction: column;
    }
    .company_left,
    .company_right {
        width: 100%;
    }
    .company_bottom {
        flex-wrap: wrap;
    }
    .company_item {
        width: calc((100% - 30px) / 2);
    }
    .qywh_item {
        width: 100%;   
    }
    .history_desc_content {
        flex-direction: column;
    }
    .history_desc_left,
    .history_desc_right{
        width: 100%;
    }
    .cert_item {
        width: 100%;
    }
    .product_item {
        width: 100%;
    }
    .cat_item h3 {
        font-size: 14px;
        white-space: nowrap;
    }
    /* 1. 针对 Webkit 内核浏览器 (Chrome, Safari, Edge, 以及大部分移动端浏览器) */
    .cat_list::-webkit-scrollbar {
        display: none; /* 隐藏滚动条 */
    }
    
    /* 2. 针对 Firefox (火狐浏览器) */
    .cat_list {
        scrollbar-width: none; /* 隐藏滚动条 */
    }
    
    /* 3. 针对 IE 10+ 和 老版 Edge */
    .cat_list {
        -ms-overflow-style: none; /* 隐藏滚动条 */
    }
    .prdocut_img {
        width: 100%;
        height: auto;
    }
    .product_right {
        width: 100%;
    }
    .sample {
        flex-direction: column;
    }
    .sample_item {
        width: 100%;
    }
    .cat_app_container {
        overflow-x: scroll;
    }
    .cat_app_item h3 {
        white-space: nowrap;
    }
    /* 1. 针对 Webkit 内核浏览器 (Chrome, Safari, Edge, 以及大部分移动端浏览器) */
    .cat_app_container::-webkit-scrollbar {
        display: none; /* 隐藏滚动条 */
    }
    
    /* 2. 针对 Firefox (火狐浏览器) */
    .cat_app_container {
        scrollbar-width: none; /* 隐藏滚动条 */
    }
    
    /* 3. 针对 IE 10+ 和 老版 Edge */
    .cat_app_container {
        -ms-overflow-style: none; /* 隐藏滚动条 */
    }
    .service_container {
        flex-direction: column;
    }
    .service_container {
        padding: 0 28px;
    }
    .service_left {
        padding-left: 0px;
    }
    .service_left,
    .service_right {
        width: 100%;
    }
    .bzxc_list {
        flex-direction: column;
    }
    .bzxc_item {
        width: 100%;
    }
    .news_item {
        width: 100%;
    }
    .banner_tab {
    }
    .banner_tab_item {
        padding: 12px 12px;
    }
    .banner_tab_item a, .banner_tab_item p {
        font-size: 14px;
    }
    .service_info_item {
        width: 100%;
    }
    .baozhang_item {
        width: calc((100% - 30px) / 2);
    }
    #product_contact_form {
        flex-direction: column;
    }
    .captcha_inner {
        flex-direction: column;
    }
    .captcha_item {
        align-items: flex-start;
    }
    .home_title p {
        bottom: -80px;
        line-height: 22px;
        font-size: 14px;
    }
    .baoxiu_item {
        width: 100%;
    }
    .baoxiu_item_text {
        margin-top: 13px;
    }
    .primary_container {
        flex-wrap: wrap;
        row-gap: 24px;
    }
    .primary_item {
        gap: 4px;
    }
    .primary_hr {
        display: none;
    }
    .primary_line {
        display: none;
    }
    .pd_container  {
        flex-direction: column;
    }
    .footer {
        padding: 0;
    }
    .footer .container {
        display: none;
    }
    .footer-bottom {
        padding-bottom: 20px;
    }
    .header_logo {
        width: 133px;
        height: auto;
    }
    .header_pc {
        padding: 0 28px;
        height: 70px;
    }
    .menu_toggle {
        display: flex;
    }
}
@media (max-width: 797px) {
    .products_right .product_item {
        width: 100%;
    }
    .products_container {
        flex-direction: column;
        gap: 1%;
    }
    .products_left {
        width: 100%;
    }
    .products_right {
        width: 100%;
    }
}
@media screen and (max-width: 555px) {
    .company_item {
        width: 100%;
    }
}
/* ==================== 庄一科技专属：全端完美居中视频弹窗 ==================== */
.video_dialog {
    border: none;
    border-radius: 16px; /* 现代感圆角 */
    padding: 0;
    width: 90%;
    max-width: 850px; /* PC端最大观影宽度 */
    background: #111; /* 深邃黑背景 */
    overflow: visible; /* 允许关闭按钮悬浮在外 */
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6); /* 质感深阴影 */
    
    /* 【核心修改】强制全屏幕绝对居中 */
    position: fixed;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -45%) scale(0.85); /* 初始状态稍微向下并缩小 */
    margin: 0 !important; /* 清除浏览器默认的 margin 干扰 */
    
    /* 核心：平滑的开窗动画（淡入 + 由小变大） */
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), 
                transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* 当弹窗被打开时激活的动画与绝对居中状态 */
.video_dialog[open] {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1); /* 完美正中心对齐 */
}

/* 磨砂玻璃质感的奢华背景遮罩 */
.video_dialog::backdrop {
    background: rgba(15, 15, 20, 0.65);
    backdrop-filter: blur(8px); /* 网页背景毛玻璃模糊 */
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.4s ease;
}

/* 遮罩层同步淡入 */
.video_dialog[open]::backdrop {
    opacity: 1;
}

/* 16:9 黄金比例视频舞台 */
.video_wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%; 
    background: #000;
    border-radius: 16px;
    overflow: hidden; /* 确保视频四周也有圆角 */
}

.video_wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain; 
}

/* ==================== PC端：极简悬浮关闭按钮 ==================== */
.dialog_close_btn {
    position: absolute;
    top: -50px;
    right: -10px;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 40px;
    font-weight: 200; /* 细线条现代工业风 */
    cursor: pointer;
    line-height: 1;
    padding: 5px;
    transition: color 0.3s ease, transform 0.3s ease;
}

.dialog_close_btn:hover {
    color: #fff;
    transform: rotate(90deg); /* 悬停旋转 */
}

/* ==================== 移动端（手机）极致自适应 ==================== */
@media screen and (max-width: 767px) {
    .video_dialog {
        width: 94%;
        border-radius: 12px;
    }
    
    .video_wrapper {
        border-radius: 12px;
    }

    /* 手机端：将关闭按钮精美地嵌入视频右上角内部，防止出界 */
    .dialog_close_btn {
        top: 12px;
        right: 12px;
        font-size: 24px;
        z-index: 1000;
        background: rgba(0, 0, 0, 0.6); 
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        width: 36px;
        height: 36px;
        border-radius: 50%;
        line-height: 34px;
        text-align: center;
        padding: 0;
        color: #fff;
    }
    
    .dialog_close_btn:hover {
        transform: none;
    }
}