/* 冠电科技官网样式 - 修复版 */

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Microsoft YaHei', '微软雅黑', Arial, sans-serif; color: #333; background: #fff; font-size: 14px; line-height: 1.6; }

.container { width: 1200px; margin: 0 auto; }

/* ========== 顶部导航 ========== */
/* 默认（内页）：白底 */
.header { position: fixed; width: 100%; top: 0; z-index: 1000; height: 70px; background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.1); transition: background 0.35s, box-shadow 0.35s; }
/* 首页：初始透明毛玻璃 */
body.homepage .header { background: rgba(255,255,255,0.15); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: none; }
/* 首页滚动后：白底 */
body.homepage .header.scrolled { background: #fff; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
/* 透明导航下的文字颜色 */
body.homepage .header:not(.scrolled) .nav-box a { color: #fff; text-shadow: 0 1px 4px rgba(0,0,0,0.25); }
body.homepage .header:not(.scrolled) .nav-box a:hover,
body.homepage .header:not(.scrolled) .nav-box a.active { color: #fff; opacity: 1; }
body.homepage .header:not(.scrolled) .nav-box a.active::after { background: #fff; }
body.homepage .header:not(.scrolled) .header-contact { color: #fff; text-shadow: 0 1px 4px rgba(0,0,0,0.25); }
.header-inner { width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; height: 70px; }
.logo-box { display: flex; align-items: center; }
.logo-box .t-logo img { height: 40px; width: auto; display: block; }

/* 双LOGO切换：白色(透明导航) / 彩色(滚动后+内页) */
.logo-color { display: none !important; }
body.homepage .header.scrolled .logo-white { display: none !important; }
body.homepage .header.scrolled .logo-color { display: block !important; }
body:not(.homepage) .logo-white { display: none !important; }
body:not(.homepage) .logo-color { display: block !important; }

/* ========== 全屏Banner内页（has-full-banner）—— 导航栏透明+滚动切换 ========== */
body.has-full-banner .header {
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: none;
}
body.has-full-banner .header.scrolled {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
body.has-full-banner .header:not(.scrolled) .nav-box a {
    color: #fff;
    text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}
body.has-full-banner .header:not(.scrolled) .nav-box a:hover,
body.has-full-banner .header:not(.scrolled) .nav-box a.active {
    color: #fff; opacity: 1;
}
body.has-full-banner .header:not(.scrolled) .nav-box a.active::after {
    background: #fff;
}
body.has-full-banner .header:not(.scrolled) .header-contact {
    color: #fff;
    text-shadow: 0 1px 4px rgba(0,0,0,0.3);
}
body.has-full-banner .header:not(.scrolled) .logo-text {
    color: #fff;
    text-shadow: 0 1px 5px rgba(0,0,0,0.35);
}
body.has-full-banner .header.scrolled .logo-white { display: none !important; }
body.has-full-banner .header.scrolled .logo-color { display: block !important; }
body.has-full-banner .header:not(.scrolled) .logo-white { display: block !important; }
body.has-full-banner .header:not(.scrolled) .logo-color { display: none !important; }

/* 全屏Banner — has-full-banner页面专用 */
body.has-full-banner .page-banner {
    margin-top: 0;
    height: 500px;
    min-height: auto;
    display: flex;
    align-items: center;
    padding: 90px 0 40px;
}
body.has-full-banner .page-banner h2 {
    font-size: 52px;
    text-shadow: 0 3px 12px rgba(0,0,0,0.35);
}
body.has-full-banner .page-banner p {
    font-size: 18px;
    letter-spacing: 4px;
}
.logo-text { display: none; }
.nav-box ul { display: flex; list-style: none; gap: 28px; margin: 0; padding: 0; align-items: center; }
.nav-box a { text-decoration: none; color: #333; font-size: 15px; font-weight: 500; transition: color 0.3s; position: relative; padding: 6px 0; }
.nav-box a:hover, .nav-box a.active { color: #0056A9; }
.nav-box a.active::after { content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 2px; background: #0056A9; }
.header-contact { color: #0056A9; font-size: 15px; font-weight: bold; white-space: nowrap; display: flex; align-items: center; gap: 6px; }
.phone-icon { flex-shrink: 0; }

/* ========== Banner轮播 ========== */
.ban-wrapper { margin-top: 0; position: relative; height: 960px; max-height: 100vh; overflow: hidden; background: #003d7a; }
.banner-swiper { width: 100%; height: 100%; }
.swiper-slide { display: flex !important; align-items: center; justify-content: center; position: relative; }
/* 移除伪元素遮罩，改用inline style的gradient */
.banner-content { position: relative; z-index: 1; text-align: left; color: #fff; max-width: 800px; padding: 0 20px; }
.banner-content h2 { font-size: 52px; margin-bottom: 18px; font-weight: bold; line-height: 1.3; text-shadow: 0 3px 12px rgba(0,0,0,0.45); }
.banner-content .subtitle { font-size: 22px; margin-bottom: 14px; opacity: 0.95; letter-spacing: 3px; text-shadow: 0 2px 6px rgba(0,0,0,0.3); }
.banner-content .desc { font-size: 16px; margin-bottom: 36px; opacity: 0.85; line-height: 2; text-shadow: 0 1px 4px rgba(0,0,0,0.25); }
.btn { display: inline-block; padding: 12px 36px; border-radius: 4px; text-decoration: none; font-weight: bold; transition: all 0.3s; font-size: 15px; }
.btn-primary { background: #fff; color: #0056A9; }
.btn-primary:hover { background: #0056A9; color: #fff; }

/* Swiper 分页器 */
.swiper-pagination-bullet { background: #fff; opacity: 0.6; width: 12px; height: 12px; }
.swiper-pagination-bullet-active { opacity: 1; background: #fff; }

/* ========== 内页Banner ========== */
.page-banner { margin-top: 70px; background: linear-gradient(rgba(0,61,122,0.55), rgba(0,45,90,0.65)), url('../images/contact-banner.jpg') center/cover no-repeat; color: #fff; padding: 100px 0; text-align: left; }
.page-banner .container { padding-left: 80px; }
.page-banner h2 { font-size: 42px; margin-bottom: 10px; text-shadow: 0 2px 8px rgba(0,0,0,0.3); }
.page-banner p { font-size: 18px; opacity: 0.9; letter-spacing: 3px; }

/* ========== 通用板块标题 ========== */
.section-title { text-align: center; font-size: 30px; color: #0056A9; margin-bottom: 12px; }
.section-title span { display: block; font-size: 13px; color: #999; margin-top: 6px; font-weight: normal; letter-spacing: 2px; }

/* ========== 关于冠电（首页） - 左文右图布局 ========== */
.about-wrapper { padding: 80px 0 60px; background: #fff; }

/* 标题区域：装饰线 + 关于冠电 */
.about-header { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.about-line { display: block; width: 32px; height: 2px; background: #0056A9; }
.about-title { font-size: 22px; color: #333; font-weight: bold; margin: 0 !important; letter-spacing: 2px; }

/* 英文副标题 */
.about-subtitle { font-size: 28px; color: #0056A9; font-weight: bold; margin: 0 0 40px 46px !important; letter-spacing: 3px; text-transform: uppercase; }

/* 左右分栏 */
.about-content { display: flex; gap: 50px; align-items: stretch; }
.about-text { flex: 1.1; padding-right: 20px; }
.about-text p { font-size: 15px; line-height: 2; color: #555; margin-bottom: 18px; text-align: justify; }

/* 了解更多按钮 */
.btn-learn-more {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 28px;
    border: 1.5px solid #ddd; border-radius: 24px;
    font-size: 14px; color: #555;
    text-decoration: none; transition: all 0.3s;
    margin-top: 8px;
}
.btn-learn-more:hover { border-color: #0056A9; color: #0056A9; }
.btn-learn-more i { font-style: normal; font-size: 12px; }

/* 右侧大图 */
.about-image { flex: 1; min-width: 0; }
.about-image img { width: 100%; height: auto; max-height: 500px; object-fit: cover; border-radius: 4px; box-shadow: 0 4px 20px rgba(0,0,0,0.08); }

/* 底部数据统计 */
.about-stats { display: flex; gap: 0; margin-top: 45px; background: #f7f8fa; padding: 30px 0; }
.stat-item { flex: 1; text-align: center; padding: 0 25px; border-right: 1px solid #e8e8e8; position: relative; }
.stat-item:last-child { border-right: none; }
.stat-item h3 { font-size: 42px; color: #0056A9; font-weight: bold; margin-bottom: 4px; }
.stat-item h3 span { font-size: 16px; color: #888; font-weight: normal; margin-left: 2px; }
.stat-item p { font-size: 13px; color: #999; line-height: 1.6; }

/* ========== 企业文化 ========== */
.culture-wrapper { padding: 70px 0 80px; background: #f5f7fa; }
.culture-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.culture-item { background: #fff; padding: 35px 25px; border-radius: 8px; text-align: center; box-shadow: 0 4px 16px rgba(0,0,0,0.06); transition: transform 0.3s, box-shadow 0.3s; }
.culture-item:hover { transform: translateY(-6px); box-shadow: 0 8px 24px rgba(0,0,0,0.12); }
.culture-icon { width: 72px; height: 72px; margin: 0 auto 18px; display: flex; align-items: center; justify-content: center; }
.culture-icon img { width: 100%; height: 100%; object-fit: contain; }
.culture-item h3 { font-size: 18px; color: #0056A9; margin-bottom: 8px; }
.culture-en { font-size: 11px; color: #aaa; margin-bottom: 12px; letter-spacing: 1px; }
.culture-item p:last-child { font-size: 14px; color: #666; line-height: 1.7; }

/* ========== 旗下品牌 ========== */
.brands-wrapper { padding: 70px 0 80px; background: #fff; }
.brands-content { display: flex; gap: 50px; align-items: center; }
.brands-text { flex: 1.2; }
.brands-desc { font-size: 18px; color: #333; line-height: 2; margin-bottom: 12px; }
.brands-desc-en { font-size: 14px; color: #888; line-height: 1.8; margin-bottom: 24px; font-style: italic; }
.brands-image { flex: 1; }
.brands-image img { width: 100%; height: auto; border-radius: 8px; box-shadow: 0 4px 20px rgba(0,0,0,0.1); }

/* ========== 产品系列 - 分类链接 ========== */
.products-category-links { display: flex; gap: 16px; margin-top: 40px; flex-wrap: wrap; justify-content: center; }
.btn-category { display: inline-block; padding: 10px 24px; border: 1px solid #0056A9; border-radius: 4px; color: #0056A9; text-decoration: none; font-size: 14px; transition: all 0.3s; }
.btn-category:hover { background: #0056A9; color: #fff; }

/* ========== 产品系列 - 分类列表 ========== */
.products-wrapper { padding: 70px 0 80px; background: #f5f7fa; }
.product-category { margin-bottom: 48px; background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,0.06); border-top: 5px solid #0056A9; }
.product-category:last-child { margin-bottom: 0; }
.cat-header { display: flex; align-items: center; padding: 28px 32px 22px; cursor: pointer; user-select: none; transition: background 0.25s; }
.cat-header:hover { background: #f8fafc; }
.cat-icon { width: 52px; height: 52px; border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-right: 18px; flex-shrink: 0; font-size: 24px; }
.cat-icon.c1 { background: linear-gradient(135deg, #e8f1fd, #c5dcf5); color: #0056A9; }
.cat-icon.c2 { background: linear-gradient(135deg, #fef3e6, #fce0c2); color: #d97b26; }
.cat-icon.c3 { background: linear-gradient(135deg, #e6f8ef, #c5eedd); color: #1a8a60; }
.cat-icon.c4 { background: linear-gradient(135deg, #fdf0f3, #fadde4); color: #c0395b; }
.cat-title { flex: 1; }
.cat-title h3 { font-size: 20px; color: #222; margin-bottom: 2px; }
.cat-title .cat-count { font-size: 13px; color: #999; }
.cat-arrow { width: 30px; height: 30px; border-radius: 50%; background: #f0f4fa; display: flex; align-items: center; justify-content: center; transition: transform 0.35s, background 0.25s; }
.cat-header:hover .cat-arrow { background: #e0e7f2; }
.cat-body { display: none; padding: 0 32px 28px; }
.cat-body.open { display: block; }
.subcat-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px 16px; list-style: none; padding: 0; margin: 0; }
.subcat-item { display: flex; align-items: center; padding: 11px 16px; border-radius: 8px; text-decoration: none; color: #444; font-size: 14.5px; transition: all 0.25s; background: #fbfcfe; border: 1px solid #eee; }
.subcat-item:hover { background: #f0f5ff; color: #0056A9; border-color: #bcd0ee; transform: translateX(4px); }
.subcat-num { width: 28px; height: 28px; border-radius: 6px; background: linear-gradient(135deg, #0056A9, #0073cc); color: #fff; font-size: 12px; font-weight: 600; display: flex; align-items: center; justify-content: center; margin-right: 12px; flex-shrink: 0; }
/* 产品侧边导航 */
.products-layout { display: flex; gap: 36px; align-items: flex-start; }
.prod-nav { width: 240px; flex-shrink: 0; position: sticky; top: 80px; }
.prod-nav-group { margin-bottom: 6px; }
.prod-nav-item { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px; background: #fff; border-radius: 8px; color: #555; font-size: 14.5px; font-weight: 500; text-decoration: none; box-shadow: 0 2px 10px rgba(0,0,0,0.05); transition: all 0.25s; border-left: 4px solid transparent; cursor: pointer; }
.prod-nav-item:hover { background: #eef3fa; }
.prod-nav-item.active { background: #0056A9; color: #fff; border-left-color: #003d7a; box-shadow: 0 4px 14px rgba(0,86,169,0.2); }
.prod-nav-arrow { font-size: 11px; transition: transform 0.3s; margin-left: 8px; opacity: 0.5; }
.prod-nav-item.active .prod-nav-arrow { opacity: 1; color: #fff; }
.prod-nav-item.expanded .prod-nav-arrow { transform: rotate(90deg); }
/* 二级子菜单 */
.prod-subnav { display: none; padding-left: 16px; padding-top: 6px; padding-bottom: 6px; }
.prod-subnav.open { display: block; }
.prod-subnav a { display: block; padding: 9px 14px 9px 20px; color: #666; font-size: 13px; text-decoration: none; border-radius: 6px; transition: all 0.2s; position: relative; }
.prod-subnav a::before { content: ''; position: absolute; left: 6px; top: 50%; width: 6px; height: 6px; border-radius: 50%; background: #ccc; transform: translateY(-50%); transition: background 0.2s; }
.prod-subnav a:hover { background: #f5f7fa; color: #0056A9; }
.prod-subnav a:hover::before { background: #0056A9; }
.prod-subnav a.active { color: #0056A9; font-weight: 600; background: #eef3fa; }
.prod-subnav a.active::before { background: #0056A9; box-shadow: 0 0 0 3px rgba(0,86,169,0.15); }

/* 产品分类区域标题 */
.prod-section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 22px;
    padding-bottom: 14px;
    border-bottom: 2px solid #e8ecf1;
}
.prod-section-num {
    width: 36px; height: 36px; border-radius: 8px; background: linear-gradient(135deg, #0056A9, #0073cc);
    color: #fff; font-size: 14px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.prod-section-title { font-size: 19px; color: #222; font-weight: 700; }
.prod-main { flex: 1; min-width: 0; }

/* 产品搜索/筛选栏 */
.prod-toolbar {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.prod-search {
    flex: 1;
    min-width: 180px;
    position: relative;
}
.prod-search input {
    width: 100%;
    padding: 10px 14px 10px 38px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    transition: border-color 0.25s;
    box-sizing: border-box;
}
.prod-search input:focus {
    outline: none;
    border-color: #0056A9;
    box-shadow: 0 0 0 3px rgba(0,86,169,0.08);
}
.prod-search .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #aaa;
    pointer-events: none;
}
.prod-filter-btn {
    padding: 9px 18px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background: #fff;
    font-size: 13.5px;
    color: #555;
    cursor: pointer;
    transition: all 0.25s;
    white-space: nowrap;
}
.prod-filter-btn:hover, .prod-filter-btn.active {
    border-color: #0056A9;
    color: #0056A9;
    background: #f0f5ff;
}
.prod-sort {
    padding: 9px 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 13.5px;
    color: #555;
    background: #fff;
    cursor: pointer;
}
.prod-sort:focus { outline: none; border-color: #0056A9; }

/* 产品卡片网格 */
.prod-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}
.prod-card {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #eee;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}
.prod-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,86,169,0.12);
    border-color: #c5d8f0;
}
.prod-card-img {
    width: 100%;
    height: 180px;
    background: #f5f7fa;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}
.prod-card-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 16px;
    box-sizing: border-box;
    transition: transform 0.35s;
}
.prod-card:hover .prod-card-img img {
    transform: scale(1.05);
}
.prod-card-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: #0056A9;
    color: #fff;
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 4px;
    font-weight: 500;
}
.prod-card-body {
    padding: 16px 18px 18px;
}
.prod-card-name {
    font-size: 15px;
    font-weight: 600;
    color: #222;
    margin-bottom: 4px;
    line-height: 1.4;
}
.prod-card-model {
    font-size: 12.5px;
    color: #0056A9;
    margin-bottom: 8px;
    font-weight: 500;
}
.prod-card-desc {
    font-size: 12.5px;
    color: #888;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.prod-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid #f0f0f0;
}
.prod-card-cat {
    font-size: 11.5px;
    color: #aaa;
}
.prod-card-link {
    font-size: 12.5px;
    color: #0056A9;
    font-weight: 500;
}

/* 分页 */
.prod-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 8px;
}
.page-btn {
    min-width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
    font-size: 13.5px;
    color: #555;
    cursor: pointer;
    transition: all 0.25s;
    padding: 0 10px;
}
.page-btn:hover, .page-btn.active {
    background: #0056A9;
    color: #fff;
    border-color: #0056A9;
}
.page-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}
.page-ellipsis {
    color: #aaa;
    font-size: 13px;
    padding: 0 4px;
}

/* 产品详情页 */
.prod-detail-breadcrumb {
    padding: 18px 0 14px;
    font-size: 13px;
    color: #999;
}
.prod-detail-breadcrumb a {
    color: #0056A9;
    text-decoration: none;
}
.prod-detail-breadcrumb span {
    margin: 0 6px;
    color: #ccc;
}
.prod-detail-layout {
    display: flex;
    gap: 40px;
    padding: 10px 0 60px;
    align-items: flex-start;
}
.prod-gallery {
    width: 440px;
    flex-shrink: 0;
}
.prod-gallery-main {
    width: 100%;
    height: 340px;
    background: #f5f7fa;
    border-radius: 10px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    border: 1px solid #eee;
}
.prod-gallery-main img {
    max-width: 85%;
    max-height: 85%;
    object-fit: contain;
}
.prod-gallery-thumbs {
    display: flex;
    gap: 10px;
}
.prod-gallery-thumb {
    width: 80px;
    height: 64px;
    background: #f5f7fa;
    border-radius: 6px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid transparent;
    cursor: pointer;
    transition: border-color 0.25s;
}
.prod-gallery-thumb.active, .prod-gallery-thumb:hover {
    border-color: #0056A9;
}
.prod-gallery-thumb img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}
.prod-info {
    flex: 1;
    min-width: 0;
}
.prod-info h1 {
    font-size: 26px;
    color: #222;
    margin-bottom: 4px;
    line-height: 1.3;
}
.prod-info .prod-model {
    font-size: 15px;
    color: #0056A9;
    margin-bottom: 16px;
    font-weight: 500;
}
.prod-info .prod-summary {
    font-size: 14.5px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}
.prod-spec-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 24px;
    font-size: 14px;
}
.prod-spec-table tr:nth-child(odd) { background: #f5f7fa; }
.prod-spec-table tr:nth-child(even) { background: #fff; }
.prod-spec-table td {
    padding: 10px 14px;
    border: 1px solid #eee;
}
.prod-spec-table .spec-label {
    color: #888;
    width: 110px;
    white-space: nowrap;
}
.prod-spec-table .spec-value {
    color: #333;
}
.prod-downloads {
    margin-bottom: 24px;
}
.prod-downloads h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 12px;
}
.prod-download-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    background: #f5f7fa;
    border-radius: 8px;
    margin-right: 12px;
    margin-bottom: 8px;
    text-decoration: none;
    color: #444;
    font-size: 13.5px;
    transition: all 0.25s;
    border: 1px solid #e8ecec;
}
.prod-download-item:hover {
    background: #e8f0fe;
    border-color: #bcd0ee;
    color: #0056A9;
}
.prod-features {
    margin-bottom: 24px;
}
.prod-features h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 12px;
}
.prod-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    font-size: 14px;
    color: #555;
    line-height: 1.6;
}
.prod-feature-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #e8f0fe;
    color: #0056A9;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 11px;
    margin-top: 2px;
}
.prod-related {
    padding: 50px 0 70px;
    background: #f5f7fa;
}
.prod-related .section-title { margin-bottom: 30px; }

/* ========== 解决方案 ========== */
.solutions-wrapper { padding: 70px 0 80px; background: #f5f7fa; }
.section-desc { text-align: center; color: #888; font-size: 15px; margin-top: 8px; margin-bottom: 10px; }
.solutions-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.solution-card { background: #fff; border-radius: 10px; padding: 30px 22px; text-align: center; box-shadow: 0 4px 16px rgba(0,0,0,0.06); transition: transform 0.3s, box-shadow 0.3s; border: 1px solid #eee; }
.solution-card:hover { transform: translateY(-6px); box-shadow: 0 8px 24px rgba(0,86,169,0.13); border-color: #0056A9; }
.solution-icon { width: 64px; height: 64px; margin: 0 auto 18px; background: #f0f5ff; border-radius: 50%; display: flex; align-items: center; justify-content: center; }
.solution-icon img { width: 36px; height: 36px; }
/* 方案卡片 - 场景大图 */
.solution-image { width: calc(100% + 44px); margin-left: -22px; margin-right: -22px; margin-top: -30px; margin-bottom: 18px; overflow: hidden; border-radius: 10px 10px 0 0; }
.solution-image img { width: 100%; height: 200px; object-fit: cover; display: block; }
.solution-card h3 { font-size: 17px; color: #0056A9; margin-bottom: 6px; }
.solution-en { font-size: 11px; color: #aaa; margin-bottom: 12px; text-transform: uppercase; letter-spacing: 1px; }
.solution-desc { font-size: 13px; color: #666; line-height: 1.7; margin-bottom: 14px; }

/* ========== 新闻资讯 - 悬停全图覆盖 ========== */
.news-more-link { text-align: center; margin-top: 40px; }

.news-wrapper { padding: 70px 0 80px; }
.news-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }

/* 新闻卡片：文字在上、图在下 → 悬停时图全覆盖 */
.news-item {
    display: block;
    position: relative;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0,0,0,0.06);
    min-height: 320px;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.4s ease, transform 0.4s ease;
}
.news-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(0,86,169,0.18);
}

/* 背景图层 — 默认只露底部一小截 */
.news-card-bg {
    position: absolute;
    bottom: 0; left: 0;
    width: 100%;
    height: 140px;
    overflow: hidden;
    z-index: 1;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.news-card-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: block;
}

/* 文字内容层 */
.news-card-body {
    position: relative;
    z-index: 2;
    padding: 28px 22px 160px;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.news-card-body h3 {
    font-size: 17px;
    color: #222;
    margin-bottom: 10px;
    line-height: 1.5;
    font-weight: 600;
    transition: color 0.4s ease, text-shadow 0.4s ease;
}
.news-date {
    font-size: 13px;
    color: #999;
    margin-bottom: 12px;
    transition: color 0.4s ease;
}
.news-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.75;
    transition: color 0.4s ease, text-shadow 0.4s ease;
}

/* ====== 悬停状态：图全覆盖 + 文字浮于上方 ====== */
.news-item:hover .news-card-bg {
    height: 100%; top: 0;
}
.news-item:hover .news-card-bg img {
    transform: scale(1.08);
}
.news-item:hover .news-card-body {
    padding-top: 180px;
    padding-bottom: 30px;
    /* 渐变遮罩让文字可读 */
    background: linear-gradient(to bottom,
        rgba(0,40,80,0.55) 0%,
        rgba(0,50,100,0.65) 40%,
        rgba(0,60,110,0.80) 100%);
    min-height: 100%;
}
.news-item:hover .news-card-body h3 {
    color: #fff;
    font-size: 19px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.4);
}
.news-item:hover .news-date {
    color: rgba(255,255,255,0.75);
}
.news-item:hover .news-desc {
    color: rgba(255,255,255,0.88);
    text-shadow: 0 1px 6px rgba(0,0,0,0.35);
}

/* ========== 合作客户 ========== */
.suppliers-wrapper { padding: 70px 0 80px; background: #f5f7fa; }
.suppliers-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 40px; }
.supplier-item { background: #fff; padding: 28px 20px; border-radius: 8px; text-align: center; box-shadow: 0 4px 16px rgba(0,0,0,0.06); font-size: 15px; color: #333; }

/* ========== 联系我们 ========== */
.contact-wrapper { padding: 70px 0 80px; background: #f7f8fc; }
.contact-content { display: flex; gap: 40px; margin-top: 40px; }
.contact-left { flex: 1; display: flex; flex-direction: column; gap: 24px; }
.contact-info { background: #fff; border-radius: 10px; padding: 36px 32px; box-shadow: 0 2px 16px rgba(0,0,0,0.06); border-top: 4px solid #0056A9; }
.contact-info h3 { font-size: 20px; color: #0056A9; margin-bottom: 24px; padding-bottom: 14px; border-bottom: 1px solid #eee; }
.contact-info .info-item { display: flex; gap: 12px; margin-bottom: 18px; align-items: flex-start; line-height: 1.7; }
.contact-info .info-item .label { color: #999; font-size: 13px; white-space: nowrap; min-width: 72px; }
.contact-info .info-item .value { color: #333; font-size: 15px; }
.contact-map { background: #fff; border-radius: 10px; padding: 36px 32px 28px; box-shadow: 0 2px 16px rgba(0,0,0,0.06); border-top: 4px solid #0056A9; }
.contact-map h3 { font-size: 20px; color: #0056A9; margin-bottom: 24px; padding-bottom: 14px; border-bottom: 1px solid #eee; }
.contact-map .map-image { border-radius: 8px; overflow: hidden; border: 1px solid #e8ecef; }
.contact-map .map-image img { width: 100%; height: 140px; object-fit: cover; display: block; }
.contact-form { flex: 1; background: #fff; border-radius: 10px; padding: 36px 32px; box-shadow: 0 2px 16px rgba(0,0,0,0.06); border: 2px solid #e0e4ec; border-top: 4px solid #0056A9; }
.contact-form h3 { font-size: 20px; color: #0056A9; margin-bottom: 24px; padding-bottom: 14px; border-bottom: 1px solid #eee; }
.contact-form .form-group { margin-bottom: 20px; }
.contact-form label { display: block; margin-bottom: 6px; font-size: 14px; color: #555; font-weight: 500; }
.contact-form input, .contact-form textarea { width: 100%; padding: 12px 16px; border: 1px solid #ddd; border-radius: 6px; font-size: 14px; font-family: inherit; transition: border-color 0.25s; background: #fafbfc; }
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: #0056A9; background: #fff; box-shadow: 0 0 0 3px rgba(0,86,169,0.08); }
.contact-form textarea { min-height: 130px; resize: vertical; }
.contact-form .btn-submit { display: inline-block; width: 100%; padding: 14px 0; background: #0056A9; color: #fff; border: none; border-radius: 6px; font-size: 16px; cursor: pointer; transition: background 0.3s; letter-spacing: 2px; margin-top: 10px; }
.contact-form .btn-submit:hover { background: #004080; }

/* ========== 页脚 ========== */
.footer-wrapper {
    background: linear-gradient(135deg, #0b5294 0%, #1274b8 40%, #1a8cd4 100%);
    color: rgba(255,255,255,0.88);
    padding: 50px 0 0;
    position: relative;
    overflow: hidden;
}
.footer-wrapper::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% 30%, rgba(255,255,255,0.06) 0%, transparent 70%),
        radial-gradient(ellipse 60% 40% at 80% 70%, rgba(0,0,0,0.08) 0%, transparent 60%);
    pointer-events: none;
}
.footer-inner { display: flex; gap: 50px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.18); position: relative; z-index: 1; }
.footer-col { flex: 1; }
.footer-col h4 { color: #fff; font-size: 17px; margin-bottom: 8px; font-weight: normal; letter-spacing: 1px; padding-bottom: 12px; border-bottom: 1px solid rgba(255,255,255,0.25); }
.footer-col h4 .en { font-size: 12px; color: rgba(255,255,255,0.55); margin-left: 10px; text-transform: uppercase; letter-spacing: 2px; }
.footer-col a { display: block; color: rgba(255,255,255,0.82); text-decoration: none; font-size: 14px; margin-bottom: 10px; transition: color 0.3s; }
.footer-col a:hover { color: #fff; }

/* 网站导航 - 双列 */
.footer-nav-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 30px; margin-top: 14px; }
.footer-nav-grid a { margin-bottom: 10px; }

/* 联系我们 - 两列信息表 */
.footer-contact-list { margin-top: 16px; }
.footer-contact-row { display: flex; align-items: flex-start; gap: 12px; font-size: 13px; line-height: 1.7; padding: 5px 0; }
.footer-contact-row .label { color: rgba(255,255,255,0.55); white-space: nowrap; min-width: 80px; }
.footer-contact-row .value { color: rgba(255,255,255,0.88); }
.footer-contact-row .value a { display: inline; text-decoration: none; color: inherit; transition: color 0.3s; }
.footer-contact-row .value a:hover { color: #fff; }

/* 热线电话 */
.footer-phone { color: rgba(255,255,255,0.88); }

/* 关注我们 - 二维码 */
.footer-qrcode-group { display: flex; gap: 24px; margin-top: 18px; }
.footer-qr-item { text-align: center; }
.footer-qr-item img { width: 110px; height: 110px; border: 3px solid rgba(255,255,255,0.2); border-radius: 6px; padding: 4px; background: #fff; }
.footer-qr-item p { font-size: 12px; margin-top: 8px; color: rgba(255,255,255,0.65); }

/* 底部版权区 */
.copyright { padding: 20px 0 28px; font-size: 12px; color: rgba(255,255,255,0.5); line-height: 1.9; position: relative; z-index: 1; }
.copyright p { margin-bottom: 0; }
.copyright a { color: rgba(255,255,255,0.6); text-decoration: none; transition: color 0.3s; }
.copyright a:hover { color: #fff; }
.copyright-links { margin-top: 6px; }
.copyright-links a { margin-right: 4px; white-space: nowrap; }

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .container { width: 100%; padding: 0 16px; }
    .header-inner { width: 100%; padding: 0 16px; flex-wrap: wrap; }
    .nav-box { display: none; }
    .header-contact { font-size: 13px; }
    .ban-wrapper { height: 500px; min-height: 400px; margin-top: 60px; }
    .banner-content h2 { font-size: 22px; }
    .banner-content .subtitle { font-size: 13px; letter-spacing: 1px; }
    .banner-content .desc { font-size: 13px; }

    /* 关于冠电 - 移动端 */
    .about-wrapper { padding: 40px 0 30px; }
    .about-subtitle { font-size: 20px; margin-bottom: 25px !important; margin-left: 10px !important; }
    .about-content { flex-direction: column; gap: 24px; }
    .about-text p { font-size: 14px; line-height: 1.9; }
    .about-image img { max-height: 300px; }
    .about-stats { flex-direction: column; padding: 20px 0; gap: 0; }
    .stat-item { border-right: none !important; border-bottom: 1px solid #e8e8e8; padding: 15px 0; }
    .stat-item:last-child { border-bottom: none; }
    .stat-item h3 { font-size: 32px; }

    .products-layout { flex-direction: column; }
    .prod-nav { width: 100%; position: static; display: flex; flex-wrap: wrap; gap: 8px; }
    .prod-nav-item { padding: 10px 14px; font-size: 13px; }
    .subcat-list { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 8px; }
    .cat-header { padding: 20px 18px; }
    .cat-body { padding: 0 18px 20px; }
    .solutions-grid { grid-template-columns: 1fr 1fr; }
    .culture-grid { grid-template-columns: 1fr 1fr; }
    .news-list { grid-template-columns: 1fr; }
    .news-item { min-height: 280px; }
    .news-card-body { padding: 22px 18px 140px; }
    .news-card-bg { height: 120px; }
    .news-item:hover .news-card-body { padding-top: 160px; }
    .contact-content { flex-direction: column; }
    .contact-left { gap: 20px; }
    .contact-map .map-image img { height: 160px; }
    .page-banner { padding: 60px 0; margin-top: 60px; }
    body.has-full-banner .page-banner { height: 340px; min-height: auto; padding: 80px 0 30px; }
    body.has-full-banner .page-banner h2 { font-size: 32px; }
    .page-banner .container { padding-left: 20px; }
    .footer-inner { flex-direction: column; gap: 30px; }
    .footer-nav-grid { grid-template-columns: 1fr 1fr; }
    .footer-qrcode-group { justify-content: flex-start; }
    .section-title { font-size: 24px; }
}