@charset "UTF-8";

/* ==================== 平板端 750px ~ 1199px ==================== */
@media (max-width: 1199px) {
    .top_inner {
        height: 60px;
    }

    .sy_banner_bg {
    }

    .nav_list {
        gap: 20px;
    }

    .nav_list > li > a {
        font-size: 14px;
    }

    .sy_banner_swiper {
        height: 560px;
    }

    .banner_text h1,
    .banner_text h2 {
        font-size: 42px;
    }
.sy_industry_grid{gap: 10px;}
.sy_industry_card{padding: 0;}
.sy_about_text p{font-size: 14px;}
.industry_info{padding: 12px;}
    .sy_products_grid{gap: 10px;}
    .sy_products_grid,
    .sy_advantage_grid,
    .sy_industry_grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .sy_news_grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .sy_about_inner {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 40px;
    }

    .sy_about_img,
    .sy_about_text {
        width: 100%;
    }

    .sy_cta_inner {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        text-align: center;
    }

    .footer_top {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 50px;padding-bottom: 30px;
    }

    .footer_brand {
        max-width: 100%;
    }
    .ny_banner{}
}

/* ==================== 平板导航切换：≤991px 改用汉堡菜单（8 项导航在平板宽度会溢出） ==================== */
@media (max-width: 991px) {
    .nav_wrap,
    .top_btn {
        display: none;
    }
.nav_list > li {
    position: relative;
}
.nav_list > li > a {
    display: block;
    padding-right: 32px;
}
.nav_list > li > i {
    position: absolute;
    right: 0;
    top: 0;
    height: 54px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: end;
    -ms-flex-pack: end;
    justify-content: flex-end;
}
.nav_list > li > i::before {
    -webkit-transition: 0.5s;
    transition: 0.5s;
}
    .top_right {
        position: static;
        margin-left: auto;
        margin-right: 12px;
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-align: center;
        -ms-flex-align: center;
        align-items: center;
    }

    .top_search {
        position: static;
    }

    .search_toggle {
        width: 36px;
        height: 36px;
        background: transparent;
        color: #1a1a1a;
        border: 1px solid #e8e8e8;
    }

    .search_toggle:hover {
        background: #c90200;
        color: #ffffff;
    }

    .search_panel {
        top: 60px;
        left: 0;
        right: auto;
        width: 100%;
        padding: 10px;
        border-radius: 0;
        gap: 10px;
    }

    .search_submit {
        padding: 10px 18px;
    }

    .menu_btn {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
    }

    .nav_wrap.active {
        display: block;
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        height: calc(100vh - 60px);
        background: #ffffff;
        overflow-y: auto;
        padding: 20px;
        z-index: 999;
    }

    .nav_wrap.active .nav_list {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        -webkit-box-align: start;
        -ms-flex-align: start;
        align-items: flex-start;
        gap: 0;
    }

    .nav_wrap.active .nav_list > li {
        width: 100%;
        border-bottom: 1px solid #e8e8e8;
    }

    .nav_wrap.active .nav_list > li > a {
        padding: 16px 32px 16px 0;
    }

    .dropdown {
        position: static;
        -webkit-transform: none;
        transform: none;
        opacity: 1;
        visibility: visible;
        -webkit-box-shadow: none;
        box-shadow: none;
        display: none;
        min-width: 100%;
        width: 100%;
        margin: 0 0 6px;
        padding: 0px 0 !important;
        border-radius: 8px;
        border-top: 1px solid #ededed;
        border-radius: 0;
    }
.nav_list > li > a{font-size: 16px;}
    .dropdown li a {
        display: block;
        padding: 8px 5px;
        font-size: 14px;
        color: #555555;
        white-space: normal;
        border-bottom: 1px solid #ededed;
    }
    .dropdown li a::before {content: "•";padding-right: 5px;color: #c90200;font-size: 16px;}

    .dropdown li:last-child a {
        border-bottom: none;
    }

    .dropdown li a:hover {
        color: #c90200;
        background: #fff0f0;
    }

    .has_dropdown.open .dropdown {
        display: block;
        -webkit-transform: translateX(0) translateY(0);
        transform: translateX(0) translateY(0);
    }

    .has_dropdown.open > a {
        color: #c90200;
    }

    .has_dropdown.open > i::before {
        -webkit-transform: rotate(90deg);
        transform: rotate(90deg);
    }
    .sy_footer_bg{padding-top: 40px;}
    .footer_brand > p{font-size: 14px;}
}

/* ==================== 手机端 < 750px ==================== */
@media (max-width: 749px) {
    .pdt80 {
        padding-top: 30px;
        padding-bottom: 30px;
    }

    .sy_bt .ml1 {
        font-size: 28px;
    }

    .sy_bt .ml2 {
        font-size: 14px;
    }

    .ny_bt .ml1 {
        font-size: 22px;
    }

    .top_inner {
        height: 60px;
    }

    .logo img {
        height: 24px;
    }

    .nav_wrap,
    .top_btn {
        display: none;
    }

    .top_right {
        margin-left: auto;
        margin-right: 12px;
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -webkit-box-align: center;
        -ms-flex-align: center;
        align-items: center;
    }

    .top_search {
        position: static;
    }

    .search_toggle {
        width: 40px;
        height: 40px;
        background: transparent;
        color: #1a1a1a;
        border: 1px solid #e8e8e8;
    }

    .search_toggle:hover {
        background: #c90200;
        color: #ffffff;
    }

    .search_panel {
        top: 60px;
        left: 0;
        right: auto;
        width: 100%;
        padding: 10px;
        border-radius: 0;
        gap: 10px;
    }

    .search_submit {
        padding: 10px 18px;
    }

    .menu_btn {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
    }

    .nav_wrap.active {
        display: block;
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        height: calc(100vh - 60px);
        background: #ffffff;
        overflow-y: auto;
        padding: 20px;
        z-index: 999;
    }

    .nav_wrap.active .nav_list {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        -webkit-box-align: start;
        -ms-flex-align: start;
        align-items: flex-start;
        gap: 0;
    }

    .nav_wrap.active .nav_list > li {
        width: 100%;
        border-bottom: 1px solid #e8e8e8;
    }

    .nav_wrap.active .nav_list > li > a {
        padding: 16px 32px 16px 0;
    }

    .dropdown {
        position: static;
        -webkit-transform: none;
        transform: none;
        opacity: 1;
        visibility: visible;
        -webkit-box-shadow: none;
        box-shadow: none;
        display: none;
        padding: 0 0 10px 16px;
    }

    .has_dropdown.open .dropdown {
        display: block;
    }

    .sy_banner_bg {
    }

    .sy_banner_swiper {
        height: 480px;
    }

    .banner_text h1,
    .banner_text h2 {
        font-size: 30px;
    }

    .banner_text p {
        font-size: 15px;
    }

    .banner_btns {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 12px;
    }

    .banner_prev,
    .banner_next {
        display: none;
    }

    .data_num {
        font-size: 40px;
    }

    .data_label {
        font-size: 14px;
    }

    .sy_data_list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .sy_data_item {
        padding: 20px;
    }


    .sy_advantage_grid,
    .sy_news_grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .sy_advantage_card {
        padding: 30px 24px;
    }

    .cta_text h2 {
        font-size: 26px;
    }

    .cta_btns {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        width: 100%;
    }

    .cta_btns .btn_large {
        width: 100%;
    }

    .footer_links {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 30px;display: none;
    }
    .sy_bt{margin-bottom: 20px;}
    .footer_logo img{height: 30px;}
}

/* ==================== 小屏手机 < 499px ==================== */
@media (max-width: 499px) {
    .sy_bt .ml1 {
        font-size: 24px;
    }

    .ny_bt .ml1 {
        font-size: 20px;
    }

    .banner_text h1,
    .banner_text h2 {
        font-size: 26px;
    }

.data_num{font-size: 30px;}
.sy_data_item{padding: 0;}
    .btn_primary,
    .btn_secondary {
        padding: 12px 24px;
        font-size: 14px;
    }

    .product_img {
        height: auto;
        margin-bottom: 0;
    }

    .sy_product_card,
    .sy_news_card {
        padding: 24px;
    }
}

/* ==================== 内页响应式 ==================== */
@media (max-width: 1199px) {
  .gd{margin-top: 24px;}
    .ny_banner {
        height: 320px;
    }

    .ny_banner h1 {
        font-size: 36px!important;
    }

    .ny_video_grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .ny_stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 749px) {
    .ny_banner {
        height: 300px;
    }

    .ny_banner h1 {
        font-size: 28px!important;
    }

    .ny_banner p {
        font-size: 14px!important;
    }


    .ny_side {
        width: 100%;
        position: static;
    }

    .ny_video_grid {
        grid-template-columns: 1fr;
    }

    .ny_stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .ny_stat .num {
        font-size: 30px;
    }

    .ny_imgtext {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 20px;
    }

    .ny_imgtext.reverse {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
    }

    .ny_imgtext .it_img {
        width: 100%;
    }

    .ny_cont h2 {
        font-size: 22px;
    }

    .contact_wrap {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 24px;
    }

    .contact_form .f_row.two {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 16px;
    }

}


/* ==================== 详情页响应式 ==================== */
@media (max-width: 1199px) {
    .pd_aside {
        width: 320px;
    }
    .contact_form{padding: 20px 16px;}

    .rel_grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .prod_cats{margin-bottom: 30px;}
    .news_row{padding: 16px;}
}

@media (max-width: 749px) {
    .pd_layout {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 24px;
    }

    .pd_aside {
        width: 100%;
        display: none;
    }

    /* 手机端：内联询盘表单与快捷联系隐藏，改为按钮唤起底部弹窗 */
    .pd_aside.open {
        display: block;
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        top: auto;
        max-height: 88vh;
        overflow-y: auto;
        background: #ffffff;
        border-radius: 16px 16px 0 0;
        padding: 30px 20px 24px;
        z-index: 1001;
        box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.25);
        -webkit-animation: pdUp .3s ease;
        animation: pdUp .3s ease;
    }

    @-webkit-keyframes pdUp {
        from { -webkit-transform: translateY(100%); transform: translateY(100%); }
        to { -webkit-transform: translateY(0); transform: translateY(0); }
    }
    @keyframes pdUp {
        from { -webkit-transform: translateY(100%); transform: translateY(100%); }
        to { -webkit-transform: translateY(0); transform: translateY(0); }
    }

    .pd_aside.open .pd_quick {
        display: none;
    }

    .pd_inquiry_btn {
        display: block;
        width: 100%;
        margin-top: 22px;
        padding: 14px 20px;
        background: #c90200;
        color: #ffffff;
        border: none;
        border-radius: 8px;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        text-align: center;
    }

    .pd_aside_close {
        display: block;
        position: absolute;
        top: 12px;
        right: 14px;
        width: 32px;
        height: 32px;
        line-height: 30px;
        text-align: center;
        font-size: 24px;
        color: #888888;
        background: #f2f2f2;
        border: none;
        border-radius: 50%;
        cursor: pointer;
        z-index: 2;
    }

    .pd_modal_mask.show {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
    }

    .news_row {
        -webkit-box-orient: vertical;
        -webkit-box-direction: normal;
        -ms-flex-direction: column;
        flex-direction: column;
        gap: 12px;
    }

    .news_row .nr_date {
        width: auto;
        border-right: 0;
        padding-right: 0;
        text-align: left;
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        gap: 8px;
        -webkit-box-align: baseline;
        -ms-flex-align: baseline;
        align-items: baseline;
    }

    .rel_grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 749px) {
  .sy_products_grid{
        grid-template-columns: repeat(1, 1fr);
    }
}


/* === 手机端透明导航时搜索按钮反白（2026-08-22）=== */
@media (max-width: 991px) {
    .top_bg:not(.scrolled) .search_toggle {
        color: #ffffff;
        border-color: rgba(255, 255, 255, 0.55);
    }
    .top_bg.scrolled .search_toggle {
        color: #1a1a1a;
        border-color: #e8e8e8;
    }
}