@charset "UTF-8";

/* ==================== 基础重置与变量 ==================== */


*, *::before, *::after {
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #1a1a1a;
    background: #ffffff;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border: 0;
}

ul, ol {
    list-style: none;
}

button {
    border: 0;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

.w1400 {
    width: 1480px;
    max-width: 95%;
    margin: 0 auto;
}

.pdt80 {
    padding-top: 80px;
    padding-bottom: 80px;
}

/* ==================== 通用标题 ==================== */
.sy_bt {
    text-align: center;
    margin-bottom: 50px;
}

.sy_bt .ml1 {
    font-size: 38px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 12px;
    line-height: 1.2;
}

.sy_bt .ml2 {
    font-size: 16px;
    color: #555555;
    margin: 0 auto;
}

.sy_bt_left {
    text-align: left;
}

.sy_bt_left .ml2 {
    margin: 0;
}

.sy_bt_white .ml1,
.sy_bt_white .ml2 {
    color: #ffffff;
}

/* ==================== 通用按钮 ==================== */
.btn_primary,
.btn_secondary {
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.btn_primary {
    background: #c90200;
    color: #ffffff;
    border: 1px solid #c90200;
}

.btn_primary:hover {
    background: #a80000;
    border-color: #a80000;
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
}

.btn_secondary {
    background: transparent;
    color: #1a1a1a;
    border: 1px solid #e8e8e8;
}

.btn_secondary:hover {
    border-color: #c90200;
    color: #c90200;
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
}

.btn_large {
    padding: 16px 40px;
    font-size: 18px;
}

.gd {
    text-align: center;
    margin-top: 40px;
}

.more_an {
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border: 1px solid #c90200;
    border-radius: 8px;
    color: #c90200;
    font-size: 15px;
    font-weight: 600;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.more_an:hover {
    background: #c90200;
    color: #ffffff;
    -webkit-transform: translateY(-3px);
    transform: translateY(-3px);
}

.more_an:hover i {
    -webkit-transform: translateX(4px);
    transform: translateX(4px);
}

.more_an i {
    font-size: 14px;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

/* ==================== 顶部导航 ==================== */
.top_bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

/* === 滚动后白色固定导航（参考 xlinkcore.com 模式）=== */
.top_bg.scrolled {
    position: fixed;
    background: rgba(255, 255, 255, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    -webkit-box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}
.top_bg.scrolled .nav_list > li > a {
    color: #1a1a1a;
}
.top_bg.scrolled .menu_btn span {
    background: #1a1a1a;
}

.top_inner {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    height: 70px;
}

.logo img {
    height: 30px;
    width: auto;
    -webkit-transition: -webkit-filter 0.5s;
    transition: filter 0.5s;
}

/* 透明导航时黑色LOGO自动反白 */
.top_bg:not(.scrolled) .logo img {
    -webkit-filter: brightness(0) invert(1);
    filter: brightness(0) invert(1);
}

/* 滚动出白色背景后恢复原色 */
.top_bg.scrolled .logo img {
    -webkit-filter: none;
    filter: none;
}

.nav_list {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 32px;
}

.nav_list > li {
    position: relative;
}

.nav_list > li > a {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 4px;
    font-size: 15px;
    font-weight: 500;
    color: #ffffff;
    padding: 10px 0;
    position: relative;
}

.nav_list > li > a::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #c90200;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.nav_list > li > a.on {
    color: #c90200;
}

.nav_list > li > a.on::after {
    width: 100%;
}

.nav_list > li > i {
    font-size: 12px;
    -webkit-transition: 0.5s;
    transition: 0.5s;
    display: none;
}
@media (min-width: 992px) {
.nav_list > li > a:hover{
    color: #c90200;
}
.nav_list > li > a:hover::after{
    width: 100%;
}
.has_dropdown:hover > i {
    -webkit-transform: rotate(90deg);
    transform: rotate(90deg);
}
}

.dropdown {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    -webkit-transform: translateX(-50%) translateY(10px);
    transform: translateX(-50%) translateY(10px);
    min-width: 200px;
    background: #ffffff;
    border-radius: 8px;
    -webkit-box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    padding: 12px 0;
    opacity: 0;
    visibility: hidden;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.has_dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    -webkit-transform: translateX(-50%) translateY(0);
    transform: translateX(-50%) translateY(0);
}

.dropdown li a {
    display: block;
    padding: 10px 24px;
    font-size: 14px;
    color: #555555;
    white-space: nowrap;
}

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

.top_right {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 20px;
}

.top_search {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

/* 导航栏常驻的搜索按钮：点击展开/收起浮层 */
.search_toggle {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    -ms-flex-negative: 0;
    flex-shrink: 0;
    width: 34px;
    height: 34px;
    border: 0;
    border-radius: 50%;
    background: #c90200;
    color: #ffffff;
    cursor: pointer;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.search_toggle:hover {
    background: #a80000;
}

/* 点击后弹出的搜索浮层（绝对定位，不占导航宽度） */
.search_panel {
    position: absolute;
    top: calc(100% + 14px);
    right: 0;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 8px;
    width: 300px;
    padding: 6px 6px 6px 18px;
    background: #ffffff;
    border: 1px solid #e8e8e8;
    border-radius: 30px;
    -webkit-box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    -webkit-transform: translateY(-8px);
    transform: translateY(-8px);
    -webkit-transition: opacity .3s ease, transform .3s ease, visibility .3s ease;
    transition: opacity .3s ease, transform .3s ease, visibility .3s ease;
}

.top_search.active .search_panel {
    opacity: 1;
    visibility: visible;
    -webkit-transform: translateY(0);
    transform: translateY(0);
}

.search_input {
    -webkit-box-flex: 1;
    -ms-flex-positive: 1;
    flex: 1;
    min-width: 0;
    border: 0;
    background: transparent;
    outline: none;
    font-size: 14px;
    color: #1a1a1a;
    font-family: inherit;
}

.search_input::-webkit-input-placeholder {
    color: #888888;
}

.search_input::-moz-placeholder {
    color: #888888;
}

.search_input::placeholder {
    color: #888888;
}

/* 浮层内的提交按钮 */
.search_submit {
    -ms-flex-negative: 0;
    flex-shrink: 0;
    border: 0;
    background: #c90200;
    color: #ffffff;
    font-size: 14px;
    font-family: inherit;
    padding: 8px 20px;
    border-radius: 30px;
    cursor: pointer;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.search_submit:hover {
    background: #a80000;
}

.top_btn {
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    padding: 10px 24px;
    background: #c90200;
    color: #ffffff;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.top_btn:hover {
    background: #a80000;
    -webkit-transform: translateY(-2px);
    transform: translateY(-2px);
}

.menu_btn {
    display: none;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    gap: 6px;
    width: 30px;
    padding: 5px;
}

.menu_btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: #ffffff;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}
.menu_btn.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.menu_btn.open span:nth-child(2) {
    opacity: 0;
}

.menu_btn.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ==================== Banner ==================== */
.sy_banner_bg {
}

.sy_banner_swiper {
    width: 100%;
    height: 720px;
}

.banner_item {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

.banner_item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: -webkit-gradient(linear, left top, right top, from(rgba(0, 0, 0, 0.65)), to(rgba(0, 0, 0, 0.2)));
    background: linear-gradient(to right, rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.2));
}

.banner_content {
    position: relative;
    z-index: 2;
}

.banner_text {
    max-width: 700px;
    color: #ffffff;
}

.banner_tag {
    display: inline-block;
    padding: 8px 18px;
    background: #c90200;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.banner_text h1,
.banner_text h2 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
    color: #ffffff;
}

.banner_text p {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 36px;
}

.banner_btns {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 16px;
}

.banner_btns .btn_secondary {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.5);
}

.banner_btns .btn_secondary:hover {
    border-color: #ffffff;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}

.banner_pagination {
    bottom: 30px !important;
}

.banner_pagination .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 1;
    margin: 0 6px !important;
}

.banner_pagination .swiper-pagination-bullet-active {
    background: #c90200;
    width: 30px;
    border-radius: 6px;
}

.banner_prev,
.banner_next {
    color: #ffffff;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.banner_prev:hover,
.banner_next:hover {
    background: #c90200;
}

.banner_prev::after,
.banner_next::after {
    font-size: 20px;
}

/* ==================== 核心数据 ==================== */
.sy_data_bg {
    background: #ffffff;
}

.sy_data_list {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-pack: distribute;
    justify-content: space-around;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    gap: 30px;
}

.sy_data_item {
    text-align: center;
    padding: 30px;
}

.data_num {
    font-size: 56px;
    font-weight: 800;
    color: #c90200;
    line-height: 1;
    margin-bottom: 12px;
}

.data_label {
    font-size: 16px;
    color: #555555;
}

/* ==================== 产品中心 ==================== */
.sy_products_bg {
    background: #f7f8fa;
}

.sy_products_grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

/* 产品列表页 + 产品详情相关产品 — 保持4列 */
.ny_cont .sy_products_grid,
.pd_rel .sy_products_grid {
    grid-template-columns: repeat(4, 1fr);
}

.sy_product_card {
    display: block;
    background: #ffffff;
    border-radius: 8px;
    padding: 25px 24px;
    text-align: center;
    -webkit-box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.sy_product_card:hover {
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
    -webkit-box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

.product_img {
    height: 260px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    margin-bottom: 20px;
}

.product_img img {
    max-height: 100%;
    width: auto;
    -o-object-fit: contain;
    object-fit: contain;
}

.sy_product_card h3 {
    font-size: 15px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sy_product_card p {
    font-size: 14px;
    color: #888888;
}

.sy_product_card .pc_desc {
    font-size: 13px;
    color: #555555;
    margin-top: 10px;
    line-height: 1.8;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-line-clamp: 3;
    -ms-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==================== 核心优势 ==================== */
.sy_advantage_bg {
    background:url('../img/sy_advantage_bg.jpg') center center / cover no-repeat;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
}

.sy_advantage_grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 30px;
    position: relative;
    z-index: 1;
}

.sy_advantage_card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 40px 28px;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.sy_advantage_card:hover {
    background: rgba(0, 0, 0, 0.5);
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
    border-color: rgba(201, 2, 0, 0.8);
}

.adv_icon {
    width: 60px;
    height: 60px;
    background: #c90200;
    border-radius: 50%;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: center;
    -ms-flex-pack: center;
    justify-content: center;
    margin-bottom: 24px;
}

.adv_icon i {
    font-size: 30px;
    color: #ffffff;
}

.sy_advantage_card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 14px;
}

.sy_advantage_card p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

/* ==================== 行业应用 ==================== */
.sy_industry_bg {
    background: #ffffff;
}

.sy_industry_grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.sy_industry_card {
    display: block;
    border-radius: 8px;
    overflow: hidden;
    -webkit-box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    background: #ffffff;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.sy_industry_card:hover {
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
    -webkit-box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

.industry_img {
    overflow: hidden;
}

.industry_img img {
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
    object-fit: cover;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.sy_industry_card:hover .industry_img img {
    -webkit-transform: scale(1.08);
    transform: scale(1.08);
}

.industry_info {
    padding: 24px;
}

.industry_info h3 {
    font-size: 18px;
    font-weight: 700;
    margin:0 0 10px !important;
    color: #1a1a1a;
}

.industry_info p {
    font-size: 14px;
    color: #555555;
    line-height: 1.6;
}

/* ==================== 关于我们 ==================== */
.sy_about_bg {
    background: #f7f8fa;
}

.sy_about_inner {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 60px;
}

.sy_about_img {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
    border-radius: 8px;
    overflow: hidden;
    -webkit-box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

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

.sy_about_text {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
}

.sy_about_text p {
    font-size: 16px;
    color: #555555;
    line-height: 1.8;
    margin-bottom: 18px;
}

.sy_about_text .gd {
    text-align: left;
}

/* ==================== 新闻资讯 ==================== */
.sy_news_bg {
    background: #ffffff;
}

.sy_news_grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.sy_news_card {
    display: block;
    padding: 32px;
    background: #ffffff;
    border-radius: 8px;
    border: 1px solid #e8e8e8;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.sy_news_card:hover {
    -webkit-transform: translateY(-5px);
    transform: translateY(-5px);
    -webkit-box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
    border-color: #c90200;
}

.news_date {
    display: inline-block;
    padding: 4px 14px;
    background: #fff0f0;
    color: #c90200;
    font-size: 13px;
    font-weight: 600;
    border-radius: 4px;
    margin-bottom: 16px;
}

.sy_news_card h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 12px;
    line-height: 1.4;
    -webkit-transition: 0.5s;
    transition: 0.5s;
}

.sy_news_card:hover h3 {
    color: #c90200;
}

.sy_news_card p {
    font-size: 14px;
    color: #555555;
    line-height: 1.7;
}

/* ==================== 底部 CTA ==================== */
.sy_cta_bg {
    background: -webkit-gradient(linear, left top, right top, from(#c90200), to(#a80000));
    background: linear-gradient(to right, #c90200, #a80000);
    padding: 80px 0;
}

.sy_cta_inner {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    gap: 40px;
}

.cta_text h2 {
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 12px;
}

.cta_text p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
}

.cta_btns {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 16px;
    -ms-flex-negative: 0;
    flex-shrink: 0;
}

.cta_btns .btn_primary {
    background: #ffffff;
    color: #c90200;
    border-color: #ffffff;
}

.cta_btns .btn_primary:hover {
    background: rgba(255, 255, 255, 0.9);
}

.cta_btns .btn_secondary {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.6);
}

.cta_btns .btn_secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
    color: #ffffff;
}

/* ==================== 页脚 ==================== */
.sy_footer_bg {
    background: #111111;
    color: #ffffff;
    padding-top: 70px;
}

.footer_top {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    gap: 120px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer_brand {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
    max-width: 420px;
}

.footer_logo img {
    height: 40px;
    width: auto;
    margin-bottom: 24px;
}

.footer_brand > p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
    margin-bottom: 24px;
}

.footer_contact p {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 10px;
}

.footer_contact i {
    color: #c90200;
}

.footer_links {
    -webkit-box-flex: 1;
    -ms-flex: 1;
    flex: 1;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    gap: 40px;
}

.link_group h4{color:#fff;font-size:16px;margin-bottom:18px;position:relative;padding-left:12px;}
.link_group h4::before{content:"";position:absolute;left:0;top:4px;width:4px;height:16px;background:#c90200;border-radius:2px;}

.link_group ul li {
    margin-bottom: 12px;
}

.link_group ul li a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.link_group ul li a:hover {
    color: #c90200;
    padding-left: 4px;
}

.footer_bottom {
    padding: 24px 0;
    text-align: center;
}

.footer_bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 6px;
}

/* ==================== 页脚产品中心两列布局 ==================== */
.prod_links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: repeat(5, auto);
    grid-auto-flow: column;
    gap: 0 28px;
}

/* ==================== 动画 ==================== */
.wow {
    visibility: hidden;
}

.pt0{padding-top: 0!important;}