/* ==========================================================================
   前台样式 - 工业科技风 / 现代简约
   结构对应《UI设计规范》第 6 章前台页面布局
   ========================================================================== */

body.front-body { background: #fff; color: var(--c-text); }

/* ---------- 区块通用 ---------- */
.section { padding: var(--sp-2xl) 0; }
.section-lg { padding: var(--sp-3xl) 0; }
.section-gray { background: var(--c-bg); }
.section-head { text-align: center; margin-bottom: var(--sp-xl); }
.section-title { position: relative; display: inline-block; margin: 0 0 var(--sp-sm); font-size: 28px; font-weight: 600; color: var(--c-title); }
.section-title::after {
    content: ""; display: block; width: 48px; height: 3px;
    margin: 12px auto 0; background: var(--c-primary); border-radius: 2px;
}
.section-sub { margin: 0; font-size: 15px; color: var(--c-text-sub); }
.section-more { display: inline-flex; align-items: center; gap: 6px; margin-top: var(--sp-xl); font-size: 14px; color: var(--c-primary); }
.section-more:hover { color: var(--c-primary-dark); gap: 10px; }
.section-more-wrap { text-align: center; }

.page-banner {
    position: relative;
    height: 240px;
    display: flex; align-items: center; justify-content: center;
    background: var(--g-banner);
    color: #fff; text-align: center;
    overflow: hidden;
}
.page-banner-bg {
    position: absolute; inset: 0; width: 100%; height: 100%;
    object-fit: cover; z-index: 0;
}
.page-banner::after { content: ""; position: absolute; inset: 0; background: rgba(21, 74, 138, .55); z-index: 1; }
.page-banner-inner { position: relative; z-index: 2; padding: 0 20px; }
.page-banner-title { margin: 0; font-size: 32px; font-weight: 600; color: #fff; }
.page-banner-sub { margin: var(--sp-sm) 0 0; font-size: 15px; color: rgba(255, 255, 255, .85); }
.page-banner .breadcrumb { justify-content: center; margin-top: var(--sp-md); }
.page-banner .breadcrumb a, .page-banner .breadcrumb .current { color: rgba(255, 255, 255, .9); }
.page-banner .breadcrumb .sep { color: rgba(255, 255, 255, .5); }

.crumb-bar { padding: var(--sp-md) 0; border-bottom: 1px solid var(--c-border-light); background: #fff; }

/* ---------- 顶部导航 ---------- */
.site-header {
    position: sticky; top: 0; z-index: 1000;
    height: var(--header-h);
    background: #fff;
    border-bottom: 1px solid var(--c-border-light);
    transition: box-shadow .25s;
}
.site-header.scrolled { box-shadow: 0 2px 12px rgba(0, 0, 0, .08); }
.header-inner { display: flex; align-items: center; height: var(--header-h); gap: var(--sp-lg); }

.site-logo { display: flex; align-items: center; gap: 10px; flex: none; max-width: 260px; }
.site-logo img { height: 42px; width: auto; }
.site-logo-text { font-size: 20px; font-weight: 700; color: var(--c-primary); line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.site-logo-text small { display: block; font-size: 11px; font-weight: 400; color: var(--c-text-mute); letter-spacing: .5px; }

.main-nav { flex: 1; display: flex; justify-content: center; min-width: 0; }
.main-nav > ul { display: flex; align-items: center; }
.main-nav > ul > li { position: relative; }
.main-nav > ul > li > a {
    display: flex; align-items: center; gap: 4px;
    height: var(--header-h); padding: 0 18px;
    font-size: 15px; color: var(--c-text);
    border-bottom: 3px solid transparent;
    transition: color .2s, border-color .2s;
    white-space: nowrap;
}
.main-nav > ul > li > a:hover, .main-nav > ul > li.active > a { color: var(--c-primary); border-bottom-color: var(--c-primary); }

.main-nav .sub-menu {
    position: absolute; top: 100%; left: 50%; transform: translate(-50%, 8px);
    min-width: 180px; padding: 6px 0;
    background: #fff; border-radius: var(--r-sm);
    box-shadow: 0 6px 24px rgba(0, 0, 0, .12);
    opacity: 0; visibility: hidden;
    transition: opacity .2s, transform .2s, visibility .2s;
}
.main-nav li:hover > .sub-menu { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.main-nav .sub-menu a { display: block; padding: 9px 18px; font-size: 14px; color: var(--c-text); white-space: nowrap; }
.main-nav .sub-menu a:hover { background: var(--c-primary-bg); color: var(--c-primary); }

.header-tools { display: flex; align-items: center; gap: var(--sp-sm); flex: none; }

.header-search { position: relative; display: flex; align-items: center; }
.header-search .input { width: 0; padding: 0; border: 0; opacity: 0; transition: width .25s, opacity .2s, padding .25s; height: 34px; }
.header-search.open .input { width: 190px; padding: 0 34px 0 12px; border: 1px solid var(--c-input-border); opacity: 1; }
.header-search-btn {
    position: absolute; right: 0; top: 50%; transform: translateY(-50%);
    width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
    background: none; border: 0; cursor: pointer; color: var(--c-text-sub); border-radius: var(--r-sm);
}
.header-search-btn:hover { color: var(--c-primary); background: var(--c-bg-hover); }
.header-search.open .header-search-btn { right: 0; }

/* 搜索联想下拉 */
.search-suggest {
    position: absolute; top: calc(100% + 6px); right: 0; z-index: 120;
    width: 320px; max-height: 380px; overflow-y: auto; padding: 4px;
    background: var(--c-bg-card); border: 1px solid var(--c-border-light);
    border-radius: var(--r-md); box-shadow: var(--shadow-card-hover);
}
.search-suggest[hidden] { display: none; }
.search-suggest-item {
    display: flex; align-items: center; gap: 10px; padding: 8px 10px;
    border-radius: var(--r-sm); color: var(--c-text); text-decoration: none;
    font-size: 14px; line-height: 1.4;
}
.search-suggest-item:hover,
.search-suggest-item.active { background: var(--c-bg-hover); color: var(--c-primary); }
.search-suggest-img {
    width: 34px; height: 34px; flex: 0 0 34px; object-fit: cover;
    border-radius: var(--r-sm); background: var(--c-bg);
}
.search-suggest-dot {
    width: 6px; height: 6px; flex: 0 0 6px; margin: 0 14px;
    border-radius: 50%; background: var(--c-border);
}
.search-suggest-text {
    flex: 1 1 auto; min-width: 0;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.search-suggest-tag {
    flex: 0 0 auto; padding: 1px 6px; font-size: 12px;
    color: var(--c-text-sub); background: var(--c-bg); border-radius: var(--r-sm);
}
@media (max-width: 768px) {
    .search-suggest { width: min(320px, calc(100vw - 32px)); right: -8px; }
}

.lang-switch { position: relative; }
.lang-current {
    display: flex; align-items: center; gap: 6px;
    height: 34px; padding: 0 10px;
    background: none; border: 1px solid var(--c-border); border-radius: var(--r-sm);
    font-size: 13px; color: var(--c-text); cursor: pointer;
    transition: border-color .2s, color .2s;
}
.lang-current:hover { border-color: var(--c-primary); color: var(--c-primary); }
.lang-list {
    position: absolute; right: 0; top: calc(100% + 6px); min-width: 150px;
    padding: 6px 0; background: #fff; border-radius: var(--r-sm);
    box-shadow: 0 6px 24px rgba(0, 0, 0, .12);
    opacity: 0; visibility: hidden; transform: translateY(6px);
    transition: all .2s; z-index: 10;
}
.lang-switch.open .lang-list { opacity: 1; visibility: visible; transform: none; }
.lang-list a { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-sm); padding: 8px 14px; font-size: 13px; color: var(--c-text); }
.lang-list a:hover { background: var(--c-bg-hover); color: var(--c-primary); }
.lang-list a.active { color: var(--c-primary); background: var(--c-primary-bg); font-weight: 500; }

.nav-toggle { display: none; width: 40px; height: 40px; align-items: center; justify-content: center; background: none; border: 0; cursor: pointer; color: var(--c-text); }

/* 移动端抽屉 */
.mobile-nav {
    position: fixed; top: 0; right: -300px; bottom: 0; width: 280px; z-index: 2000;
    background: #fff; box-shadow: -4px 0 24px rgba(0, 0, 0, .12);
    transition: right .28s ease; overflow-y: auto;
    display: flex; flex-direction: column;
}
.mobile-nav.open { right: 0; }
.mobile-nav-head { display: flex; align-items: center; justify-content: space-between; height: 56px; padding: 0 var(--sp-md); border-bottom: 1px solid var(--c-border-light); }
.mobile-nav ul li a { display: block; padding: 13px var(--sp-md); font-size: 15px; color: var(--c-text); border-bottom: 1px solid var(--c-border-light); }
.mobile-nav ul li a:hover, .mobile-nav ul li.active > a { color: var(--c-primary); background: var(--c-primary-bg); }
.mobile-nav .sub-menu { padding-left: var(--sp-md); background: var(--c-bg); }
.mobile-nav .sub-menu a { font-size: 14px; padding: 11px var(--sp-md); }
.mobile-nav-foot { padding: var(--sp-md); margin-top: auto; border-top: 1px solid var(--c-border-light); }
.nav-mask { position: fixed; inset: 0; z-index: 1999; background: rgba(0, 0, 0, .45); opacity: 0; visibility: hidden; transition: all .25s; }
.nav-mask.show { opacity: 1; visibility: visible; }

/* ---------- Banner 轮播 ---------- */
.banner { position: relative; height: 500px; overflow: hidden; background: var(--c-dark); }
.banner-slides { position: relative; height: 100%; }
.banner-slide {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    opacity: 0; transition: opacity .7s ease;
    display: flex; align-items: center;
}
.banner-slide.active { opacity: 1; z-index: 1; }
.banner-slide::after { content: ""; position: absolute; inset: 0; background: var(--g-banner); opacity: .78; }
.banner-slide.no-image::after { opacity: 1; }
.banner-content { position: relative; z-index: 2; width: 100%; }
.banner-title { margin: 0 0 var(--sp-md); font-size: 40px; font-weight: 700; line-height: 1.25; color: #fff; max-width: 760px; }
.banner-subtitle { margin: 0 0 var(--sp-xl); font-size: 18px; line-height: 1.7; color: rgba(255, 255, 255, .9); max-width: 640px; }
.banner-dots { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 3; display: flex; gap: var(--sp-sm); }
.banner-dot { width: 28px; height: 4px; border: 0; border-radius: 2px; background: rgba(255, 255, 255, .45); cursor: pointer; padding: 0; transition: background .2s; }
.banner-dot.active { background: #fff; }
.banner-arrow {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
    width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
    background: rgba(0, 0, 0, .22); border: 0; border-radius: 50%; color: #fff; cursor: pointer;
    transition: background .2s;
}
.banner-arrow:hover { background: rgba(0, 0, 0, .45); }
.banner-prev { left: 24px; }
.banner-next { right: 24px; }

/* ---------- 首页：分类入口 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-lg); }
.cat-item {
    display: flex; flex-direction: column; align-items: center; gap: var(--sp-sm);
    padding: var(--sp-lg) var(--sp-md);
    background: #fff; border: 1px solid var(--c-border-light); border-radius: var(--r-md);
    text-align: center; color: var(--c-text);
    transition: all .25s;
}
.cat-item:hover { border-color: var(--c-primary); box-shadow: var(--shadow-card-hover); transform: translateY(-2px); color: var(--c-primary); }
.cat-icon {
    width: 56px; height: 56px; display: flex; align-items: center; justify-content: center;
    background: var(--c-primary-bg); color: var(--c-primary); border-radius: 50%;
    transition: all .25s;
}
.cat-item:hover .cat-icon { background: var(--c-primary); color: #fff; }
.cat-name { font-size: 15px; font-weight: 500; color: inherit; }
.cat-count { font-size: 12px; color: var(--c-text-mute); }

/* ---------- 产品卡片 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-lg); }
.product-card {
    display: flex; flex-direction: column;
    background: #fff; border: 1px solid var(--c-border-light); border-radius: var(--r-md);
    overflow: hidden; transition: all .25s;
}
.product-card:hover { border-color: transparent; box-shadow: var(--shadow-card-hover); transform: translateY(-3px); }
.product-thumb { position: relative; display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--c-bg); }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.product-card:hover .product-thumb img { transform: scale(1.06); }
.product-badge { position: absolute; top: 10px; left: 10px; z-index: 1; }
.product-body { display: flex; flex-direction: column; flex: 1; padding: var(--sp-md); }
.product-name { margin: 0 0 var(--sp-sm); font-size: 15px; font-weight: 600; line-height: 1.5; color: var(--c-title); }
.product-name a { color: inherit; }
.product-name a:hover { color: var(--c-primary); }
.product-desc { margin: 0 0 var(--sp-md); font-size: 13px; line-height: 1.6; color: var(--c-text-sub); }
.product-meta { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-sm); margin-top: auto; padding-top: var(--sp-sm); border-top: 1px solid var(--c-border-light); }
.product-model { font-size: 12px; color: var(--c-text-mute); }
.product-link { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: var(--c-primary); }

/* ---------- 公司简介区块 ---------- */
.about-block { display: flex; align-items: center; gap: var(--sp-3xl); }
.about-text { flex: 1; min-width: 0; }
.about-title { margin: 0 0 var(--sp-md); font-size: 28px; font-weight: 600; color: var(--c-title); line-height: 1.4; }
.about-desc { font-size: 15px; line-height: 1.9; color: var(--c-text-sub); }
.about-stats { display: flex; flex-wrap: wrap; gap: var(--sp-xl); margin: var(--sp-lg) 0; }
.about-stat-num { font-size: 32px; font-weight: 700; color: var(--c-primary); line-height: 1.2; }
.about-stat-label { font-size: 13px; color: var(--c-text-sub); }
.about-media { flex: 1; min-width: 0; border-radius: var(--r-md); overflow: hidden; box-shadow: var(--shadow-card); }
.about-media img { width: 100%; display: block; }

/* ---------- 新闻卡片 ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-lg); }
.news-card { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--c-border-light); border-radius: var(--r-md); overflow: hidden; transition: all .25s; }
.news-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-3px); border-color: transparent; }
.news-card-thumb { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--c-bg); }
.news-card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.news-card:hover .news-card-thumb img { transform: scale(1.05); }
.news-card-body { display: flex; flex-direction: column; flex: 1; padding: var(--sp-md); }
.news-card-title { margin: 0 0 var(--sp-sm); font-size: 16px; font-weight: 600; line-height: 1.5; color: var(--c-title); }
.news-card-title a { color: inherit; }
.news-card-title a:hover { color: var(--c-primary); }
.news-card-summary { margin: 0 0 var(--sp-md); font-size: 13px; line-height: 1.7; color: var(--c-text-sub); }
.news-card-meta { display: flex; align-items: center; gap: var(--sp-sm); margin-top: auto; font-size: 12px; color: var(--c-text-mute); }

/* 新闻列表项（左图右文） */
.news-list { display: flex; flex-direction: column; }
.news-item { display: flex; gap: var(--sp-lg); padding: var(--sp-lg) 0; border-bottom: 1px solid var(--c-border-light); }
.news-item:first-child { padding-top: 0; }
.news-item-thumb { flex: none; width: 200px; aspect-ratio: 16 / 10; border-radius: var(--r-sm); overflow: hidden; background: var(--c-bg); }
.news-item-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.news-item:hover .news-item-thumb img { transform: scale(1.05); }
.news-item-body { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.news-item-title { margin: 0 0 var(--sp-sm); font-size: 18px; font-weight: 600; line-height: 1.5; }
.news-item-title a { color: var(--c-title); }
.news-item-title a:hover { color: var(--c-primary); }
.news-item-summary { margin: 0 0 var(--sp-md); font-size: 14px; line-height: 1.7; color: var(--c-text-sub); }
.news-item-meta { display: flex; align-items: center; flex-wrap: wrap; gap: var(--sp-md); margin-top: auto; font-size: 12px; color: var(--c-text-mute); }
.news-item-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: #CCC; }

/* 分类标签筛选 */
.filter-tabs { display: flex; flex-wrap: wrap; gap: var(--sp-sm); padding-bottom: var(--sp-lg); margin-bottom: var(--sp-lg); border-bottom: 1px solid var(--c-border-light); }
.filter-tab { display: inline-flex; align-items: center; height: 32px; padding: 0 var(--sp-md); font-size: 14px; color: var(--c-text-sub); background: var(--c-bg); border-radius: var(--r-sm); transition: all .2s; }
.filter-tab:hover { color: var(--c-primary); background: var(--c-primary-bg); }
.filter-tab.active { color: #fff; background: var(--c-primary); }

/* 排序栏 */
.list-toolbar { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-md); flex-wrap: wrap; margin-bottom: var(--sp-lg); }
.sort-group { display: flex; align-items: center; gap: var(--sp-xs); }
.sort-item { padding: 5px 12px; font-size: 13px; color: var(--c-text-sub); border-radius: var(--r-sm); transition: all .2s; }
.sort-item:hover { color: var(--c-primary); }
.sort-item.active { color: #fff; background: var(--c-primary); }
.result-count { font-size: 13px; color: var(--c-text-sub); }

/* ---------- 侧边栏 / 内容两栏 ---------- */
.layout-sidebar { display: flex; gap: var(--sp-xl); align-items: flex-start; padding: var(--sp-xl) 0; }
.sidebar { flex: none; width: 240px; }
.main-content { flex: 1; min-width: 0; }

.side-box { background: #fff; border: 1px solid var(--c-border-light); border-radius: var(--r-md); overflow: hidden; margin-bottom: var(--sp-lg); }
.side-box-title { padding: 14px var(--sp-md); margin: 0; font-size: 16px; font-weight: 600; color: #fff; background: var(--c-primary); }
.side-tree a { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-sm); padding: 11px var(--sp-md); font-size: 14px; color: var(--c-text); border-bottom: 1px solid var(--c-border-light); }
.side-tree li:last-child a { border-bottom: 0; }
.side-tree a:hover { background: var(--c-bg-hover); color: var(--c-primary); }
.side-tree a.active { background: var(--c-primary-bg); color: var(--c-primary); font-weight: 500; border-left: 3px solid var(--c-primary); padding-left: 13px; }
.side-tree .sub a { padding-left: var(--sp-lg); font-size: 13px; }
.side-tree .count { font-size: 12px; color: var(--c-text-mute); }

.side-contact { padding: var(--sp-md); }
.side-contact li { display: flex; gap: var(--sp-sm); padding: 8px 0; font-size: 13px; color: var(--c-text-sub); border-bottom: 1px dashed var(--c-border-light); }
.side-contact li:last-child { border-bottom: 0; }
.side-contact .icon { color: var(--c-primary); margin-top: 3px; }

/* ---------- 详情页 ---------- */
.detail-head { padding: var(--sp-lg) 0; border-bottom: 1px solid var(--c-border-light); }
.detail-title { margin: 0 0 var(--sp-sm); font-size: 28px; font-weight: 600; color: var(--c-title); line-height: 1.4; }
.detail-meta { display: flex; align-items: center; flex-wrap: wrap; gap: var(--sp-md); font-size: 13px; color: var(--c-text-mute); }
.detail-meta .icon { vertical-align: -2px; }

.product-detail-top { display: flex; gap: var(--sp-xl); padding: var(--sp-xl) 0; }
.product-gallery { flex: none; width: 41.666%; }
.gallery-main { width: 100%; aspect-ratio: 4 / 3; border: 1px solid var(--c-border-light); border-radius: var(--r-sm); overflow: hidden; background: var(--c-bg); }
.gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumbs { display: flex; gap: var(--sp-sm); margin-top: var(--sp-sm); flex-wrap: wrap; }
.gallery-thumb { width: 72px; height: 60px; border: 1px solid var(--c-border-light); border-radius: var(--r-sm); overflow: hidden; cursor: pointer; padding: 0; background: var(--c-bg); transition: border-color .2s; }
.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery-thumb.active, .gallery-thumb:hover { border-color: var(--c-primary); }

.product-info { flex: 1; min-width: 0; }
.product-info-title { margin: 0 0 var(--sp-md); font-size: 26px; font-weight: 600; color: var(--c-title); line-height: 1.4; }
.info-table { width: 100%; margin-bottom: var(--sp-lg); font-size: 14px; }
.info-table th { width: 90px; padding: 8px 0; text-align: left; font-weight: 400; color: var(--c-text-mute); vertical-align: top; }
.info-table td { padding: 8px 0; color: var(--c-text); }
.info-highlight { display: flex; flex-wrap: wrap; gap: var(--sp-sm); margin-bottom: var(--sp-lg); }
.info-actions { display: flex; flex-wrap: wrap; gap: var(--sp-sm); margin-bottom: var(--sp-lg); }
.share-row { display: flex; align-items: center; gap: var(--sp-sm); font-size: 13px; color: var(--c-text-mute); }
.share-btn { display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px; border: 1px solid var(--c-border); border-radius: 50%; background: #fff; color: var(--c-text-sub); cursor: pointer; transition: all .2s; }
.share-btn:hover { border-color: var(--c-primary); color: var(--c-primary); }

/* Tabs */
.tabs { border-bottom: 1px solid var(--c-border-light); display: flex; gap: var(--sp-lg); overflow-x: auto; }
.tab-btn {
    position: relative; padding: 12px 2px; background: none; border: 0;
    font-size: 16px; font-weight: 500; color: var(--c-text-sub); cursor: pointer; white-space: nowrap;
    transition: color .2s;
}
.tab-btn::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--c-primary); transform: scaleX(0); transition: transform .2s; }
.tab-btn:hover { color: var(--c-primary); }
.tab-btn.active { color: var(--c-primary); }
.tab-btn.active::after { transform: scaleX(1); }
.tab-panel { display: none; padding: var(--sp-lg) 0; }
.tab-panel.active { display: block; animation: fade-in .25s; }

.param-table th { width: 220px; background: var(--c-bg); color: var(--c-text-sub); font-weight: 500; }
.scene-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-lg); }
.scene-item { border: 1px solid var(--c-border-light); border-radius: var(--r-sm); overflow: hidden; }
.scene-item img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; }
.scene-item-body { padding: var(--sp-md); }
.scene-item-title { margin: 0 0 var(--sp-xs); font-size: 15px; font-weight: 600; color: var(--c-title); }
.scene-item-text { margin: 0; font-size: 13px; color: var(--c-text-sub); line-height: 1.7; }

/* 富文本正文 */
.rich-text { font-size: 16px; line-height: 1.8; color: var(--c-text); word-break: break-word; }
.rich-text p { margin-bottom: var(--sp-md); }
.rich-text h2, .rich-text h3, .rich-text h4 { margin: var(--sp-lg) 0 var(--sp-md); color: var(--c-title); }
.rich-text img { max-width: 100%; height: auto; border-radius: var(--r-sm); margin: var(--sp-md) 0; }
.rich-text ul, .rich-text ol { padding-left: 24px; margin-bottom: var(--sp-md); }
.rich-text ul { list-style: disc; }
.rich-text ol { list-style: decimal; }
.rich-text li { margin-bottom: 6px; }
.rich-text a { color: var(--c-primary); text-decoration: underline; }
.rich-text table { width: 100%; margin-bottom: var(--sp-md); border: 1px solid var(--c-border-light); border-collapse: collapse; }
.rich-text table th, .rich-text table td { padding: 8px 12px; border: 1px solid var(--c-border-light); font-size: 14px; }
.rich-text table th { background: var(--c-bg); font-weight: 500; }
/* 多规格矩阵表：列数多，需紧凑排版并在窄屏横向滚动，而不是挤压变形 */
.rich-text .spec-table { display: block; overflow-x: auto; white-space: nowrap; font-size: 13px; }
.rich-text .spec-table th, .rich-text .spec-table td { padding: 6px 10px; text-align: center; }
.rich-text .spec-table th:first-child, .rich-text .spec-table td:first-child { font-weight: 500; }
.rich-text blockquote { margin: var(--sp-md) 0; padding: var(--sp-md); border-left: 4px solid var(--c-primary); background: var(--c-bg); color: var(--c-text-sub); }
.news-content { max-width: 900px; margin: 0 auto; }

/* 上下篇 */
.prev-next { display: flex; gap: var(--sp-md); padding: var(--sp-lg) 0; border-top: 1px solid var(--c-border-light); margin-top: var(--sp-lg); }
.prev-next a { flex: 1; min-width: 0; padding: var(--sp-md); background: var(--c-bg); border-radius: var(--r-sm); font-size: 14px; color: var(--c-text-sub); transition: all .2s; }
.prev-next a:hover { background: var(--c-primary-bg); color: var(--c-primary); }
.prev-next .label { display: block; font-size: 12px; color: var(--c-text-mute); margin-bottom: 4px; }
.prev-next .next { text-align: right; }

/* ---------- 单页面 ---------- */
.page-content { max-width: 1000px; margin: 0 auto; padding: var(--sp-xl) 0 var(--sp-3xl); }

/* ---------- 联系我们 ---------- */
.contact-layout { display: flex; gap: var(--sp-xl); align-items: flex-start; padding: var(--sp-xl) 0 var(--sp-3xl); }
.contact-info { flex: none; width: 41.666%; }
.contact-form-wrap { flex: 1; min-width: 0; }
.contact-item { display: flex; gap: var(--sp-md); padding: var(--sp-md) 0; border-bottom: 1px dashed var(--c-border-light); }
.contact-item:last-child { border-bottom: 0; }
.contact-icon { flex: none; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: var(--c-primary-bg); color: var(--c-primary); border-radius: 50%; }
.contact-label { font-size: 13px; color: var(--c-text-mute); margin-bottom: 2px; }
.contact-value { font-size: 15px; color: var(--c-title); font-weight: 500; word-break: break-all; }
.contact-map { margin-top: var(--sp-lg); border-radius: var(--r-md); overflow: hidden; border: 1px solid var(--c-border-light); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--sp-md); }
.form-grid .full { grid-column: 1 / -1; }

/* ---------- 搜索 ---------- */
.search-hero { padding: var(--sp-xl) 0; background: var(--c-bg); text-align: center; }
.search-box { display: flex; max-width: 640px; margin: 0 auto; gap: var(--sp-sm); }
.search-box .input { height: 44px; font-size: 15px; }
.search-result-item { padding: var(--sp-lg) 0; border-bottom: 1px solid var(--c-border-light); }
.search-result-title { margin: 0 0 var(--sp-sm); font-size: 17px; font-weight: 600; }
.search-result-title a { color: var(--c-primary); }
.search-result-title a:hover { text-decoration: underline; }
.search-result-summary { margin: 0 0 var(--sp-sm); font-size: 14px; line-height: 1.7; color: var(--c-text-sub); }
.search-result-meta { display: flex; align-items: center; gap: var(--sp-sm); font-size: 12px; color: var(--c-text-mute); }
mark, .hl { background: #FFF3CD; color: var(--c-danger); padding: 0 2px; border-radius: 2px; }
.hot-words { display: flex; flex-wrap: wrap; gap: var(--sp-sm); justify-content: center; }
.hot-word { padding: 5px 14px; font-size: 13px; color: var(--c-text-sub); background: #fff; border: 1px solid var(--c-border); border-radius: 16px; transition: all .2s; }
.hot-word:hover { border-color: var(--c-primary); color: var(--c-primary); }

/* ---------- FAQ 手风琴 ---------- */
.faq-list { display: flex; flex-direction: column; gap: var(--sp-sm); }
.faq-item { background: #fff; border: 1px solid var(--c-border-light); border-radius: var(--r-sm); overflow: hidden; transition: border-color .2s; }
.faq-item.open { border-color: var(--c-primary); }
.faq-question {
    display: flex; align-items: center; justify-content: space-between; gap: var(--sp-md);
    width: 100%; padding: var(--sp-md);
    background: none; border: 0; cursor: pointer; text-align: left;
    font-size: 15px; font-weight: 500; color: var(--c-title);
}
.faq-item.open .faq-question { color: var(--c-primary); }
.faq-question .icon { transition: transform .25s; color: var(--c-text-mute); flex: none; }
.faq-item.open .faq-question .icon { transform: rotate(180deg); color: var(--c-primary); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-answer-inner { padding: 0 var(--sp-md) var(--sp-md); font-size: 14px; line-height: 1.8; color: var(--c-text-sub); border-top: 1px solid var(--c-border-light); padding-top: var(--sp-md); }

/* ---------- CTA ---------- */
.cta-section { padding: var(--sp-3xl) 0; background: var(--g-banner); color: #fff; text-align: center; }
.cta-title { margin: 0 0 var(--sp-sm); font-size: 30px; font-weight: 600; color: #fff; }
.cta-sub { margin: 0 0 var(--sp-lg); font-size: 16px; color: rgba(255, 255, 255, .88); }

/* ---------- 404 ---------- */
.error-page { padding: var(--sp-3xl) 0; text-align: center; }
.error-code { font-size: 120px; font-weight: 700; line-height: 1; color: var(--c-primary); opacity: .9; letter-spacing: 4px; }
.error-title { margin: var(--sp-md) 0 var(--sp-sm); font-size: 22px; color: var(--c-title); }
.error-desc { margin: 0 0 var(--sp-xl); font-size: 14px; color: var(--c-text-sub); }
.error-actions { display: flex; gap: var(--sp-sm); justify-content: center; margin-bottom: var(--sp-3xl); }
.error-search { display: flex; max-width: 420px; margin: 0 auto var(--sp-lg); gap: var(--sp-sm); }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--c-dark); color: var(--c-dark-text-sub); font-size: 14px; }
.footer-main { display: grid; grid-template-columns: 1.4fr 1.2fr 1fr 1fr; gap: var(--sp-xl); padding: var(--sp-2xl) 0 var(--sp-lg); }
.footer-title { margin: 0 0 var(--sp-md); font-size: 16px; font-weight: 600; color: #fff; }
.footer-about p { line-height: 1.8; margin-bottom: var(--sp-md); }
.footer-qr { width: 100px; height: 100px; padding: 6px; background: #fff; border-radius: var(--r-sm); }
.footer-qr img { width: 100%; height: 100%; object-fit: contain; }
/* 快速链接是四列里最长的一列：单列 8 条会把整行顶到 300px，其余三列各空 100～200px。
   收成两列后整行高度由「联系方式」决定。行距只在这一处定义，别在视图里补内联样式。 */
.footer-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--sp-lg); row-gap: 6px; }
.footer-links li { margin-bottom: 0; }
.footer-links a { color: var(--c-dark-text-sub); font-size: 14px; transition: color .2s, padding-left .2s; }
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact li { display: flex; gap: var(--sp-sm); margin-bottom: 12px; line-height: 1.7; }
.footer-contact .icon { color: var(--c-secondary); margin-top: 4px; flex: none; }
.footer-bottom {
    display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: var(--sp-sm);
    height: 60px; padding: 0 20px;
    border-top: 1px solid var(--c-dark-border);
    font-size: 12px; color: #95A5A6; text-align: center;
}
.footer-bottom a { color: #95A5A6; }
.footer-bottom a:hover { color: #fff; }

/* ---------- 悬浮按钮 ---------- */
.float-tools { position: fixed; right: 30px; bottom: 30px; z-index: 900; display: flex; flex-direction: column; gap: 12px; }
.float-btn {
    width: 48px; height: 48px; display: flex; align-items: center; justify-content: center;
    background: #fff; color: var(--c-primary);
    border: 1px solid var(--c-border-light); border-radius: 50%;
    box-shadow: 0 2px 12px rgba(0, 0, 0, .12);
    cursor: pointer; transition: all .25s; position: relative;
}
.float-btn:hover { background: var(--c-primary); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 18px rgba(30, 90, 168, .3); }
.float-btn .tip {
    position: absolute; right: calc(100% + 10px); top: 50%; transform: translateY(-50%);
    padding: 6px 10px; background: rgba(0, 0, 0, .78); color: #fff;
    font-size: 12px; border-radius: var(--r-sm); white-space: nowrap;
    opacity: 0; visibility: hidden; transition: all .2s; pointer-events: none;
}
.float-btn:hover .tip { opacity: 1; visibility: visible; }
.float-btn.to-top { opacity: 0; visibility: hidden; transform: translateY(10px); }
.float-btn.to-top.show { opacity: 1; visibility: visible; transform: none; }
.float-btn.to-top:hover { transform: translateY(-2px); }

/* 询盘弹窗内的联系条 */
.inquiry-contact { display: flex; flex-direction: column; gap: var(--sp-sm); padding: var(--sp-md); background: var(--c-bg); border-radius: var(--r-sm); margin-bottom: var(--sp-md); font-size: 14px; }
.inquiry-contact a { color: var(--c-primary); font-weight: 600; }

/* ---------- 前台响应式 ---------- */
@media (max-width: 1023px) {
    .banner { height: 360px; }
    .banner-title { font-size: 28px; }
    .banner-subtitle { font-size: 16px; }
    .product-grid { grid-template-columns: repeat(3, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .cat-grid { grid-template-columns: repeat(4, 1fr); }
    .footer-main { grid-template-columns: 1fr 1fr; gap: var(--sp-xl) var(--sp-lg); }
    .about-block { gap: var(--sp-xl); }
    .main-nav > ul > li > a { padding: 0 12px; font-size: 14px; }
    .layout-sidebar { gap: var(--sp-lg); }
    .sidebar { width: 200px; }
    .scene-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
    .site-header { height: 60px; }
    :root { --header-h: 60px; }
    .main-nav { display: none; }
    .nav-toggle { display: flex; }
    .header-inner { gap: var(--sp-sm); }
    .site-logo { max-width: none; flex: 1; }
    .site-logo-text { font-size: 17px; }
    .header-search.open .input { width: 130px; }

    .banner { height: 240px; }
    .banner-title { font-size: 22px; margin-bottom: var(--sp-sm); }
    .banner-subtitle { font-size: 14px; margin-bottom: var(--sp-md); }
    .banner-arrow { display: none; }

    .page-banner { height: 180px; }
    .page-banner-title { font-size: 24px; }

    .product-grid { grid-template-columns: repeat(2, 1fr); gap: var(--sp-md); }
    .news-grid { grid-template-columns: 1fr; }
    .cat-grid { grid-template-columns: repeat(2, 1fr); gap: var(--sp-md); }

    .layout-sidebar { display: block; padding: var(--sp-lg) 0; }
    .topic-index { padding: var(--sp-lg) 0; }
    .sidebar { width: auto; margin-bottom: var(--sp-lg); }

    .about-block { display: block; }
    .about-media { margin-top: var(--sp-lg); }
    .about-title { font-size: 22px; }

    .product-detail-top { display: block; padding: var(--sp-lg) 0; }
    .product-gallery { width: auto; margin-bottom: var(--sp-lg); }
    .product-info-title { font-size: 20px; }
    .detail-title { font-size: 20px; }
    .scene-list { grid-template-columns: 1fr; }
    .param-table th { width: 120px; }

    .news-item { flex-direction: column; gap: var(--sp-md); }
    .news-item-thumb { width: 100%; aspect-ratio: 16 / 9; }
    .news-item-title { font-size: 16px; }

    .contact-layout { display: block; padding: var(--sp-lg) 0 var(--sp-2xl); }
    .contact-info { width: auto; margin-bottom: var(--sp-xl); }
    .form-grid { grid-template-columns: 1fr; }

    .footer-main { grid-template-columns: 1fr; padding: var(--sp-xl) 0; gap: var(--sp-lg); }
    .footer-bottom { height: auto; padding: var(--sp-md) 12px; }

    .float-tools { right: 12px; bottom: 16px; gap: 10px; }
    .float-btn { width: 40px; height: 40px; }

    .prev-next { flex-direction: column; }
    .prev-next .next { text-align: left; }
    .error-code { font-size: 80px; }
    .rich-text { font-size: 15px; }
    .cta-title { font-size: 22px; }
}

@media (max-width: 479px) {
    .product-grid { grid-template-columns: 1fr; }
    .float-btn { width: 40px; height: 40px; }
}

/* ============================================================
   补充：布局壳、头部信息、页脚列、首页区块
   ============================================================ */
.site-main { min-height: 60vh; }

.site-logo-mark {
    display: inline-flex; align-items: center; justify-content: center;
    width: 36px; height: 36px; border-radius: var(--r-sm);
    background: var(--g-button); color: #fff; flex-shrink: 0;
}

.header-hotline { display: flex; align-items: center; gap: 8px; padding-right: var(--sp-md); }
.header-hotline .hotline-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 34px; border-radius: 50%;
    background: var(--c-primary-bg); color: var(--c-primary);
}
.header-hotline .hotline-text { display: flex; flex-direction: column; line-height: 1.25; }
.header-hotline .hotline-text em { font-style: normal; font-size: 12px; color: var(--c-text-mute); }
.header-hotline .hotline-text strong { font-size: 15px; color: var(--c-primary); font-weight: 700; }

.header-search-form { display: flex; align-items: center; }
.header-search-form .input { height: 32px; padding: 0 10px; font-size: 13px; }

.lang-switch .lang-code { font-weight: 600; }
.lang-switch .lang-name { margin-left: 6px; font-size: 12px; opacity: .8; }
.lang-switch .lang-list .lang-name { margin-left: 8px; }

.mobile-nav-body { flex: 1; overflow-y: auto; padding: var(--sp-sm) 0; }
.mobile-nav-body > ul > li > a {
    display: block; padding: 13px var(--sp-lg);
    font-size: 15px; color: var(--c-text); border-bottom: 1px solid var(--c-border-light);
}
.mobile-nav-body > ul > li.active > a { color: var(--c-primary); font-weight: 600; }
.mobile-nav-body .sub { background: var(--c-bg); }
.mobile-nav-body .sub a {
    display: block; padding: 11px var(--sp-lg) 11px 36px;
    font-size: 14px; color: var(--c-text-sub); border-bottom: 1px solid var(--c-border-light);
}
.mobile-nav-title { font-size: 15px; font-weight: 600; color: var(--c-title); }
body.nav-locked { overflow: hidden; }
body.modal-locked { overflow: hidden; }

.banner-actions { display: flex; gap: var(--sp-md); flex-wrap: wrap; justify-content: center; margin-top: var(--sp-lg); }
.banner-actions .btn-ghost {
    background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.6); color: #fff;
}
.banner-actions .btn-ghost:hover { background: #fff; color: var(--c-primary); border-color: #fff; }

.about-stat { text-align: center; }
.about-media-fallback {
    display: flex; align-items: center; justify-content: center;
    width: 100%; height: 100%; min-height: 280px;
    background: var(--c-primary-bg); color: var(--c-primary); border-radius: var(--r-md);
}

.news-card-date { display: block; font-size: 12px; color: var(--c-text-mute); margin-bottom: 6px; }

.footer-col { min-width: 0; }
.footer-about-col { padding-right: var(--sp-xl); }
.footer-contact .fc-icon { display: inline-flex; color: var(--c-primary-light); flex-shrink: 0; margin-top: 2px; }
.footer-bottom-inner {
    display: flex; align-items: center; justify-content: center;
    gap: var(--sp-md); flex-wrap: wrap; font-size: 13px; color: var(--c-dark-text-sub);
}
.footer-bottom-inner a { color: var(--c-dark-text-sub); }
.footer-bottom-inner a:hover { color: #fff; }

.cta-inner {
    display: flex; align-items: center; justify-content: space-between;
    gap: var(--sp-xl); flex-wrap: wrap;
}
.cta-text { flex: 1 1 420px; min-width: 0; }
.cta-actions { display: flex; align-items: center; gap: var(--sp-md); flex-wrap: wrap; }

.error-recommend { margin-top: var(--sp-3xl); text-align: left; }
.error-recommend .section-title { margin-bottom: var(--sp-lg); }

.modal-mask.show { display: flex; }

@media (max-width: 767px) {
    .header-hotline { display: none; }
    .banner-actions { flex-direction: column; align-items: stretch; }
    .cta-inner { flex-direction: column; align-items: flex-start; }
    .footer-about-col { padding-right: 0; }
}

/* ============================================================
   前台内页组件：列表侧栏、详情、专题、联系、搜索、FAQ
   ============================================================ */

/* FAQ 手风琴展开态（基础样式只定义了收起时的 max-height） */
.faq-item.open .faq-answer { max-height: 1600px; }
.faq-answer-inner > p:last-child { margin-bottom: 0; }

/* 弹窗默认隐藏，加 .show 后由 .modal-mask.show 显示 */
.modal-mask:not(.show) { display: none; }
body.modal-locked { overflow: hidden; }

/* 产品卡片价格 */
.product-price-row { display: flex; align-items: baseline; gap: var(--sp-sm); margin-bottom: var(--sp-sm); }
.product-price { font-size: 17px; font-weight: 600; color: var(--c-danger); }
/* 带侧栏的列表区可用宽度更窄，产品栅格降为 3 列 */
.main-content .product-grid { grid-template-columns: repeat(3, 1fr); }

/* 侧栏内部结构 */
.side-contact-action { padding: var(--sp-md); border-top: 1px solid var(--c-border-light); }
.side-contact .contact-label,
.side-contact .contact-value { display: block; }
.side-contact a.contact-value:hover { color: var(--c-primary); }
.side-contact li > span:last-child { min-width: 0; }

.side-news-list li { border-bottom: 1px solid var(--c-border-light); }
.side-news-list li:last-child { border-bottom: 0; }
.side-news-list a { display: block; padding: 11px var(--sp-md); }
.side-news-list a:hover { background: var(--c-bg-hover); }
.side-news-title { display: block; font-size: 13px; line-height: 1.6; color: var(--c-text); }
.side-news-list a:hover .side-news-title { color: var(--c-primary); }
.side-news-date { display: block; margin-top: 4px; font-size: 12px; color: var(--c-text-mute); }

/* 详情页通用 */
.detail-related { padding-bottom: var(--sp-xl); }
.product-detail-tabs { padding-bottom: var(--sp-lg); }
.info-price { font-size: 18px; font-weight: 600; color: var(--c-danger); }
.sub-cat-nav { padding-bottom: var(--sp-md); margin-bottom: var(--sp-md); }

/* 新闻列表与详情 */
.news-item-more { margin-left: auto; display: inline-flex; align-items: center; gap: 2px; color: var(--c-primary); }
.news-item-top { margin-right: 6px; vertical-align: 1px; }
.news-item-meta .icon { vertical-align: -2px; }
.news-article { padding-bottom: var(--sp-lg); }
.news-summary {
    margin: var(--sp-lg) 0; padding: var(--sp-md);
    background: var(--c-primary-bg); border-left: 3px solid var(--c-primary);
    border-radius: 0 var(--r-sm) var(--r-sm) 0;
    font-size: 14px; line-height: 1.8; color: var(--c-text-sub);
}
.news-share { margin-top: var(--sp-xl); }

/* 单页面导航 */
.page-nav-tabs { padding: var(--sp-lg) 0 0; margin-bottom: 0; border-bottom: 0; }

/* 专题页 */
.topic-index { padding: var(--sp-xl) 0; }
.topic-body { padding-bottom: var(--sp-xl); }
.topic-meta { display: flex; flex-wrap: wrap; gap: var(--sp-sm) var(--sp-md); padding: var(--sp-lg) 0 var(--sp-md); font-size: 13px; color: var(--c-text-mute); }
.topic-meta-item { display: inline-flex; align-items: center; gap: 4px; }
.topic-meta-item .icon { color: var(--c-primary); }
.topic-lead {
    margin-bottom: var(--sp-lg); padding: var(--sp-md) var(--sp-lg);
    background: var(--c-bg); border-radius: var(--r-sm);
    font-size: 15px; line-height: 1.9; color: var(--c-text-sub);
}
.topic-thumb { margin-bottom: var(--sp-lg); border-radius: var(--r-md); overflow: hidden; }
.topic-thumb img { width: 100%; display: block; }
.topic-section { margin-top: var(--sp-2xl); }
.topic-section-title {
    display: flex; align-items: center; gap: var(--sp-sm);
    margin: 0 0 var(--sp-lg); padding-left: var(--sp-md);
    font-size: 19px; font-weight: 600; color: var(--c-title);
    border-left: 4px solid var(--c-primary); line-height: 1.4;
}
.topic-section-title .icon { color: var(--c-primary); }
.topic-keywords { display: flex; flex-wrap: wrap; gap: var(--sp-sm); }

.region-card { padding: var(--sp-md); }
.region-name { display: flex; align-items: center; gap: var(--sp-sm); margin: 0 0 var(--sp-md); font-size: 15px; font-weight: 600; color: var(--c-title); }
.region-name .icon { color: var(--c-primary); }
.region-meta li {
    display: flex; align-items: center; justify-content: space-between; gap: var(--sp-sm);
    padding: 8px 0; font-size: 13px; color: var(--c-text-sub);
    border-bottom: 1px dashed var(--c-border-light);
}
.region-meta li:last-child { border-bottom: 0; }
.region-meta b { font-weight: 600; color: var(--c-title); }

/* 联系我们 */
.contact-info-body { padding: 0 var(--sp-md); }
.contact-text { min-width: 0; }
.contact-text .contact-label,
.contact-text .contact-value { display: block; }
.contact-text a.contact-value:hover { color: var(--c-primary); }
.contact-form-body { padding: var(--sp-lg) var(--sp-md); }
.form-intro { margin: 0 0 var(--sp-lg); font-size: 14px; line-height: 1.8; color: var(--c-text-sub); }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-md); margin-top: var(--sp-md); }
.form-error:empty { display: none; }
.form-done { margin: var(--sp-md) 0 0; }

.contact-qrcode { margin-top: var(--sp-lg); padding: var(--sp-md); text-align: center; background: #fff; border: 1px solid var(--c-border-light); border-radius: var(--r-md); }
.contact-qrcode img { width: 132px; height: 132px; object-fit: contain; display: block; margin: 0 auto var(--sp-sm); }
.contact-qrcode span { font-size: 13px; color: var(--c-text-sub); }

/* 地图占位区：不加载任何外部地图脚本 */
.contact-map-placeholder {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--sp-xs);
    min-height: 260px; padding: var(--sp-xl) var(--sp-md); text-align: center;
    background:
        linear-gradient(rgba(30, 90, 168, .05) 1px, transparent 1px) 0 0 / 100% 28px,
        linear-gradient(90deg, rgba(30, 90, 168, .05) 1px, transparent 1px) 0 0 / 28px 100%,
        var(--c-bg);
}
.contact-map-icon { display: flex; align-items: center; justify-content: center; width: 64px; height: 64px; border-radius: 50%; background: #fff; color: var(--c-primary); box-shadow: var(--shadow-card); margin-bottom: var(--sp-sm); }
.contact-map-title { margin: 0; font-size: 16px; font-weight: 600; color: var(--c-title); }
.contact-map-address { margin: 0; max-width: 480px; font-size: 14px; line-height: 1.8; color: var(--c-text-sub); }
.contact-map-hours { display: inline-flex; align-items: center; gap: 4px; margin: var(--sp-sm) 0 0; font-size: 13px; color: var(--c-text-mute); }

/* 询盘弹窗 */
.modal-product-name { margin: 0 0 var(--sp-md); padding-bottom: var(--sp-md); border-bottom: 1px solid var(--c-border-light); font-size: 15px; font-weight: 600; color: var(--c-title); }
#inquiryModal .form-grid { grid-template-columns: 1fr; }

/* FAQ 页 */
.faq-page { padding: var(--sp-xl) 0 var(--sp-3xl); }
.faq-search { margin-bottom: var(--sp-lg); }
.faq-search .search-box { max-width: 560px; }
.faq-cat-tabs { margin-bottom: var(--sp-xl); }
.tab-count { margin-left: 6px; padding: 0 6px; font-size: 11px; line-height: 16px; border-radius: 8px; background: rgba(0, 0, 0, .06); color: inherit; }
.filter-tab.active .tab-count { background: rgba(255, 255, 255, .25); }
.faq-result-count { margin-bottom: var(--sp-md); }
.faq-group { margin-bottom: var(--sp-2xl); }
.faq-group:last-of-type { margin-bottom: var(--sp-xl); }
.faq-group-title { display: flex; align-items: center; gap: var(--sp-sm); margin: 0 0 var(--sp-md); font-size: 19px; font-weight: 600; color: var(--c-title); }
.faq-group-count { padding: 1px 8px; font-size: 12px; font-weight: 400; color: var(--c-primary); background: var(--c-primary-bg); border-radius: 10px; }
.faq-cta {
    display: flex; align-items: center; justify-content: space-between; gap: var(--sp-lg); flex-wrap: wrap;
    padding: var(--sp-lg); background: var(--c-primary-bg); border-radius: var(--r-md);
}
.faq-cta p { margin: 0; font-size: 15px; color: var(--c-text-sub); }

/* 搜索页 */
.search-hero-title { margin: 0 0 var(--sp-xs); font-size: 26px; font-weight: 600; color: var(--c-title); }
.search-hero-sub { margin: 0 0 var(--sp-lg); font-size: 14px; color: var(--c-text-sub); }
.search-hero .search-box .btn { flex: none; }
.search-hot { display: flex; align-items: center; justify-content: center; gap: var(--sp-md); flex-wrap: wrap; margin-top: var(--sp-lg); }
.search-hot-label { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: var(--c-text-mute); }
.search-hot .hot-words { justify-content: flex-start; }
.search-body { padding: var(--sp-xl) 0 var(--sp-3xl); }
.search-type-tabs { margin-bottom: var(--sp-md); }
.search-result-list { margin-bottom: var(--sp-lg); }
.search-result-item:first-child { padding-top: 0; }
.search-result-title a mark, .search-result-summary mark { background: #FFF3CD; color: var(--c-danger); padding: 0 2px; border-radius: 2px; }
.search-result-meta .icon { vertical-align: -2px; }

@media (max-width: 1023px) {
    .main-content .product-grid { grid-template-columns: repeat(2, 1fr); }
    .topic-section-title { font-size: 17px; }
}

@media (max-width: 767px) {
    .detail-related { padding-bottom: var(--sp-lg); }
    .news-summary { padding: var(--sp-sm) var(--sp-md); font-size: 13px; }
    .topic-section { margin-top: var(--sp-xl); }
    .topic-lead { padding: var(--sp-sm) var(--sp-md); font-size: 14px; }
    .faq-group { margin-bottom: var(--sp-xl); }
    .faq-cta { flex-direction: column; align-items: flex-start; }
    .search-hero-title { font-size: 21px; }
    .search-hero .search-box { flex-direction: column; }
    .search-hero .search-box .btn { width: 100%; }
    .search-hot { flex-direction: column; align-items: flex-start; gap: var(--sp-sm); }
    .form-actions .btn { flex: 1; }
    .contact-map-placeholder { min-height: 200px; }
    .rich-text { overflow-x: auto; }
    .side-news-list, .side-contact { font-size: 13px; }
}

@media (max-width: 479px) {
    .main-content .product-grid { grid-template-columns: 1fr; }
    .topic-meta { gap: var(--sp-xs) var(--sp-sm); font-size: 12px; }
    .contact-qrcode img { width: 112px; height: 112px; }
}