/* ============ 恒奇仪器官网 · UI 设计稿 · 设计系统 ============ */
/* 仅用于静态设计稿（HTML mockups），不含任何外部依赖 */

:root {
  --primary: #1259d0;
  --primary-dark: #0b3e8f;
  --primary-deep: #0a2f66;
  --cyan: #0ea5e9;
  --accent: #ff6a00;          /* 询价 CTA */
  --accent-dark: #e05d00;
  --green: #16a34a;
  --bg: #f5f7fa;
  --card: #ffffff;
  --text: #1b2a3a;
  --muted: #64748b;
  --border: #e5eaf1;
  --radius: 10px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .05);
  --shadow: 0 1px 3px rgba(16, 24, 40, .06), 0 4px 14px rgba(16, 24, 40, .06);
  --font: -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "HarmonyOS Sans SC", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---------- 顶栏 / 头部 ---------- */
.topbar { background: var(--primary-dark); color: #d7e4f7; font-size: 12px; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; height: 34px; }
.topbar a { color: #fff; margin-left: 14px; }
.topbar a:hover { color: #9ec9ff; }

.header { background: #fff; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 50; }
.header .container { display: flex; align-items: center; gap: 28px; padding-top: 16px; padding-bottom: 14px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo .mark {
  width: 42px; height: 42px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--cyan));
  color: #fff; font-weight: 800; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
}
.logo .name { font-weight: 800; font-size: 19px; color: var(--text); line-height: 1.2; }
.logo .name small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: 1px; }

/* 搜索（位于导航栏上方） */
.searchbar { flex: 1; max-width: 560px; position: relative; }
.searchbar .box { display: flex; border: 2px solid var(--primary); border-radius: 12px; overflow: hidden; background: #fff; }
.searchbar input {
  flex: 1; border: 0; outline: 0; padding: 11px 16px; font-size: 14px; font-family: var(--font);
}
.searchbar button {
  border: 0; background: var(--primary); color: #fff; font-size: 14px;
  padding: 0 26px; cursor: pointer; font-family: var(--font);
}
.searchbar button:hover { background: var(--primary-dark); }
.searchbar .hint { font-size: 12px; color: var(--muted); margin-top: 6px; }
.searchbar .hint b { color: var(--primary); font-weight: 600; }
/* 搜索联想下拉 */
.suggest {
  position: absolute; left: 0; right: 0; top: calc(100% + 6px); background: #fff;
  border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow);
  padding: 8px; z-index: 60; display: none;
}
.searchbar:focus-within .suggest { display: block; }
.suggest .g { font-size: 12px; color: var(--muted); padding: 6px 10px 2px; }
.suggest .item { display: flex; justify-content: space-between; gap: 10px; padding: 8px 10px; border-radius: 8px; cursor: pointer; }
.suggest .item:hover { background: #f0f5ff; }
.suggest .item .t { color: var(--text); font-size: 13px; }
.suggest .item .m { font-size: 12px; color: var(--muted); font-family: var(--mono); }
.suggest .item .tag { color: var(--primary); }

.header .actions { display: flex; align-items: center; gap: 12px; margin-left: auto; flex-shrink: 0; }
.icon-btn {
  position: relative; display: flex; align-items: center; gap: 6px;
  border: 1px solid var(--border); border-radius: 10px; padding: 9px 14px;
  color: var(--text); background: #fff; cursor: pointer; font-size: 13px;
}
.icon-btn:hover { border-color: var(--primary); color: var(--primary); }
.icon-btn .cnt {
  position: absolute; top: -6px; right: -6px; background: var(--accent); color: #fff;
  font-size: 11px; min-width: 18px; height: 18px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center; padding: 0 4px;
}

/* ---------- 主导航 ---------- */
.nav { background: var(--primary-deep); position: relative; z-index: 40; }
.nav .container { display: flex; align-items: center; gap: 4px; }
.nav a {
  display: flex; align-items: center; gap: 4px; color: #dce8fb; padding: 13px 18px;
  font-size: 15px; transition: background .15s;
}
.nav a:hover, .nav a.active { background: rgba(255, 255, 255, .12); color: #fff; }
.nav a.active { box-shadow: inset 0 -3px 0 var(--cyan); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 0; border-radius: 8px; padding: 9px 18px; font-size: 14px;
  cursor: pointer; font-family: var(--font); transition: all .15s; font-weight: 500;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); }
.btn-outline { background: #fff; color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { background: #f0f5ff; }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255, 255, 255, .55); }
.btn-ghost:hover { border-color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 12px; border-radius: 6px; }
.btn-lg { padding: 12px 28px; font-size: 15px; border-radius: 10px; }

/* ---------- 徽标 / 标签 ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 4px; padding: 2px 9px;
  border-radius: 999px; font-size: 12px; line-height: 1.7; font-weight: 500;
}
.badge-blue { background: #e8f1ff; color: var(--primary); }
.badge-orange { background: #fff1e6; color: var(--accent-dark); }
.badge-green { background: #e8f8ee; color: #128a3f; }
.badge-gray { background: #eef1f5; color: var(--muted); }
.badge-dark { background: var(--primary-deep); color: #fff; }
.tag {
  display: inline-block; padding: 2px 10px; border-radius: 6px; font-size: 12px;
  background: #f0f4fa; color: var(--muted); margin: 0 6px 6px 0;
}
.tag.on { background: #e8f1ff; color: var(--primary); }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(120deg, var(--primary-deep) 0%, var(--primary) 55%, #1e6fdd 100%);
  color: #fff; padding: 64px 0 72px; position: relative; overflow: hidden;
}
.hero .container { position: relative; z-index: 2; text-align: center; }
.hero h1 { font-size: 38px; line-height: 1.3; font-weight: 800; }
.hero h1 em { font-style: normal; color: #ffd9a8; }
.hero .sub { margin-top: 14px; color: #cfe0f8; font-size: 16px; }
.hero .searchwrap { max-width: 640px; margin: 28px auto 0; }
.hero .chips { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.hero .chips a {
  background: rgba(255, 255, 255, .14); color: #fff; border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 999px; padding: 5px 16px; font-size: 13px;
}
.hero .chips a:hover { background: rgba(255, 255, 255, .25); }
.hero .trust { margin-top: 26px; display: flex; gap: 28px; justify-content: center; color: #d7e4f7; font-size: 13px; }
.hero .trust b { display: block; font-size: 20px; color: #fff; }

/* ---------- 区块 ---------- */
.section { padding: 46px 0; }
.section.gray { background: #fff; }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 22px; }
.sec-head h2 { font-size: 24px; font-weight: 800; display: flex; align-items: center; gap: 10px; }
.sec-head h2::before { content: ""; width: 5px; height: 22px; border-radius: 3px; background: linear-gradient(var(--primary), var(--cyan)); }
.sec-head .more { font-size: 13px; color: var(--muted); }
.sec-head .more a { color: var(--muted); }
.sec-head .more a:hover { color: var(--primary); }

/* ---------- 类目磁贴 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cat-tile {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 18px; display: flex; gap: 14px; align-items: flex-start; transition: all .15s;
}
.cat-tile:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-2px); }
.cat-tile .ic {
  width: 44px; height: 44px; border-radius: 10px; flex-shrink: 0;
  background: linear-gradient(135deg, #e8f1ff, #e0f6ff);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
}
.cat-tile h3 { font-size: 15px; margin-bottom: 4px; }
.cat-tile h3 a { color: var(--text); }
.cat-tile h3 a:hover { color: var(--primary); }
.cat-tile p { font-size: 12px; color: var(--muted); line-height: 1.5; }

/* ---------- 品牌墙 ---------- */
.brand-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.brand-cell {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 16px 10px; text-align: center; transition: all .15s;
}
.brand-cell:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.brand-cell .lg {
  height: 78px; display: flex; align-items: center; justify-content: center;
  border-radius: 8px; margin-bottom: 10px; padding: 0 14px;
  background: linear-gradient(135deg, #eef3fb, #f4f6f9);
  font-weight: 800; font-size: 18px; color: var(--primary-dark); letter-spacing: .5px;
  white-space: nowrap; overflow: hidden;
}
.brand-cell .nm { font-size: 13px; font-weight: 600; }
.brand-cell .lv { margin-top: 5px; }

/* ---------- 产品卡片 ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.prod-card {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  overflow: hidden; display: flex; flex-direction: column; transition: all .15s;
}
.prod-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.prod-card .ph {
  height: 150px; background: linear-gradient(135deg, #f2f6fd, #e9f1fb);
  display: flex; align-items: center; justify-content: center; font-size: 26px;
}
.prod-card .bd { padding: 13px 14px 14px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.prod-card .nm { font-size: 14px; font-weight: 600; line-height: 1.45; height: 40px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.prod-card .nm a { color: var(--text); }
.prod-card .nm a:hover { color: var(--primary); }
.prod-card .meta { font-size: 12px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 4px 12px; }
.prod-card .meta .mono { font-family: var(--mono); color: #33475e; }
.prod-card .ft { display: flex; gap: 8px; margin-top: auto; padding-top: 8px; }
.prod-card .ft .btn { flex: 1; }

/* ---------- 内容卡片（解决方案/知识库/资讯） ---------- */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.post-card {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 18px; transition: all .15s; display: flex; flex-direction: column; gap: 8px;
}
.post-card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.post-card .kind { font-size: 12px; color: var(--primary); font-weight: 600; }
.post-card h3 { font-size: 15px; line-height: 1.5; }
.post-card h3 a { color: var(--text); }
.post-card h3 a:hover { color: var(--primary); }
.post-card p { font-size: 12.5px; color: var(--muted); height: 40px; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.post-card .d { font-size: 12px; color: #9aa7b8; margin-top: auto; }

/* ---------- CTA 横幅 ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--primary) 0%, #1b6cd9 60%, #2a86e0 100%);
  border-radius: 16px; color: #fff; padding: 34px 40px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.cta-band h3 { font-size: 22px; margin-bottom: 6px; }
.cta-band p { color: #cfe0f8; font-size: 13.5px; }
.cta-band .btns { display: flex; gap: 12px; flex-shrink: 0; }

/* ---------- 页脚 ---------- */
.footer { background: #0d1829; color: #b8c6d8; margin-top: 20px; }
.footer .cols { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 30px; padding: 44px 0 30px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer a { color: #b8c6d8; display: block; font-size: 13px; margin-bottom: 9px; }
.footer a:hover { color: #fff; }
.footer .co { font-size: 13px; line-height: 2; }
.footer-bottom { border-top: 1px solid #1e2c41; padding: 16px 0; font-size: 12px; color: #7d8ba0; }
.footer-bottom a { color: #7d8ba0; display: inline; margin: 0 8px; }

/* ---------- 面包屑 / 页面头 ---------- */
.breadcrumb { font-size: 12.5px; color: var(--muted); padding: 14px 0 0; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { margin: 0 6px; color: #c3cdd9; }
.page-head { padding: 18px 0 10px; }
.page-head h1 { font-size: 26px; font-weight: 800; }
.page-head .desc { color: var(--muted); margin-top: 6px; max-width: 900px; font-size: 13.5px; }

/* ---------- 列表页两栏 ---------- */
.layout { display: grid; grid-template-columns: 220px 1fr; gap: 20px; padding: 16px 0 40px; align-items: start; }
.side { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 14px; position: sticky; top: 130px; }
.side h4 { font-size: 14px; margin-bottom: 8px; }
.side ul a { display: block; padding: 6px 10px; border-radius: 6px; font-size: 13px; color: var(--text); }
.side ul a:hover, .side ul a.on { background: #eef4ff; color: var(--primary); }
.side .grp { margin-bottom: 12px; }
.facet { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 12px 16px; margin-bottom: 14px; }
.facet .row { display: flex; align-items: flex-start; gap: 10px; padding: 5px 0; font-size: 13px; }
.facet .k { color: var(--muted); flex-shrink: 0; width: 46px; padding-top: 1px; }
.facet .vs { display: flex; flex-wrap: wrap; gap: 4px; }
.facet .v { padding: 2px 10px; border-radius: 999px; cursor: pointer; }
.facet .v:hover { background: #eef4ff; color: var(--primary); }
.facet .v.on { background: var(--primary); color: #fff; }
.cat-intro { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; margin-bottom: 14px; font-size: 13px; color: #41506a; }
.cat-intro b { color: var(--text); }
.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 20px; }
.pagination a, .pagination span {
  min-width: 34px; height: 34px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 8px; background: #fff; font-size: 13px; color: var(--text);
}
.pagination .on { background: var(--primary); border-color: var(--primary); color: #fff; }
.pagination a:hover { border-color: var(--primary); color: var(--primary); }

/* ---------- 产品详情 ---------- */
.prod-detail { display: grid; grid-template-columns: 300px 1fr; gap: 28px; padding: 16px 0 40px; align-items: start; }
.pd-img { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 26px; position: sticky; top: 130px; }
.pd-img .ph { height: 280px; border-radius: 10px; background: linear-gradient(135deg, #f2f6fd, #e9f1fb); display: flex; align-items: center; justify-content: center; font-size: 44px; }
.pd-img .thumbs { display: flex; gap: 8px; margin-top: 12px; }
.pd-img .thumbs span { width: 56px; height: 56px; border-radius: 8px; background: #f2f6fd; border: 2px solid transparent; }
.pd-img .thumbs span.on { border-color: var(--primary); }
.pd-main h1 { font-size: 22px; font-weight: 800; line-height: 1.4; }
.pd-main .pd-en { margin-top: 6px; font-size: 15px; color: var(--muted); line-height: 1.5; }
.pd-main .sum { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pd-main .kv { display: flex; flex-wrap: wrap; gap: 8px 26px; margin: 14px 0; font-size: 13px; color: #41506a; background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 14px 18px; }
.pd-main .kv b { color: var(--text); font-weight: 600; }
.pd-main .kv .mono { font-family: var(--mono); }
.pd-note { margin: 12px 0; font-size: 13px; color: var(--accent-dark); background: #fff7ef; border: 1px dashed #ffcda3; border-radius: 10px; padding: 10px 14px; }
.vtable { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; font-size: 13px; }
.vtable th { background: #f5f8fc; text-align: left; padding: 10px 14px; font-weight: 600; color: #41506a; }
.vtable td { padding: 11px 14px; border-top: 1px solid var(--border); }
.vtable tr:hover td { background: #f8fbff; }
.vtable .mono { font-family: var(--mono); color: #33475e; }
.vtable .hl td { background: #fff8ef; }
.pd-side .card { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 18px; margin-bottom: 14px; }
.pd-side .card h4 { font-size: 15px; margin-bottom: 10px; }
.pd-side .qline { font-size: 13px; color: var(--muted); line-height: 1.8; }
.pd-side .card .btn { width: 100%; margin-top: 6px; }

/* ---------- 搜索结果 ---------- */
.result-item {
  background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px;
  margin-bottom: 12px; display: flex; gap: 16px; align-items: flex-start; transition: all .15s;
}
.result-item:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.result-item .ph { width: 84px; height: 84px; border-radius: 10px; background: linear-gradient(135deg, #f2f6fd, #e9f1fb); display: flex; align-items: center; justify-content: center; font-size: 28px; flex-shrink: 0; }
.result-item h3 { font-size: 15px; margin-bottom: 4px; }
.result-item .meta { font-size: 12.5px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 4px 14px; }
.result-item .meta .mono { font-family: var(--mono); color: #33475e; }
.result-item .why { font-size: 12px; color: var(--green); margin-top: 4px; }
.result-item .rt { margin-left: auto; display: flex; gap: 8px; flex-shrink: 0; }
.no-result { background: #fff; border: 1px dashed var(--border); border-radius: 12px; padding: 40px; text-align: center; color: var(--muted); }
.no-result h3 { color: var(--text); margin-bottom: 8px; }
.no-result .tip { font-size: 12.5px; margin-top: 14px; color: #9aa7b8; }

/* ---------- 文章 ---------- */
.article-layout { display: grid; grid-template-columns: 1fr 260px; gap: 24px; padding: 16px 0 44px; align-items: start; }
.article { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 34px 40px; }
.article h1 { font-size: 26px; line-height: 1.45; margin-bottom: 12px; }
.article .by { font-size: 12.5px; color: var(--muted); display: flex; gap: 16px; flex-wrap: wrap; padding-bottom: 16px; border-bottom: 1px solid var(--border); margin-bottom: 20px; }
.callout {
  background: #f0f6ff; border-left: 4px solid var(--primary); border-radius: 0 10px 10px 0;
  padding: 14px 18px; margin: 16px 0; font-size: 13.5px; color: #33475e;
}
.callout b { color: var(--primary-dark); }
.prose { font-size: 14.5px; line-height: 1.9; color: #33475e; }
.prose h2 { font-size: 19px; margin: 28px 0 12px; color: var(--text); }
.prose h2::before { content: "§ "; color: var(--primary); }
.prose h3 { font-size: 16px; margin: 20px 0 10px; color: var(--text); }
.prose p { margin-bottom: 12px; }
.prose ul, .prose ol { margin: 0 0 12px 22px; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 13px; }
.prose th, .prose td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.prose th { background: #f5f8fc; }
.prose .faq-q { font-weight: 700; color: var(--text); margin: 18px 0 6px; }
.prose .faq-q::before { content: "Q："; color: var(--primary); }
.prose .faq-a { margin-bottom: 8px; }
.prose .faq-a::before { content: "A："; color: var(--green); font-weight: 700; }
.toc { position: sticky; top: 130px; }
.toc .card { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 16px 18px; margin-bottom: 14px; }
.toc .card h4 { font-size: 14px; margin-bottom: 8px; }
.toc .card a { display: block; font-size: 13px; color: var(--muted); padding: 3px 0; border-left: 2px solid transparent; padding-left: 10px; }
.toc .card a:hover, .toc .card a.on { color: var(--primary); border-left-color: var(--primary); }
.toc .mini { display: flex; gap: 10px; align-items: flex-start; background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 10px; margin-bottom: 8px; }
.toc .mini .ph { width: 52px; height: 52px; border-radius: 8px; background: #f2f6fd; display: flex; align-items: center; justify-content: center; font-size: 20px; flex-shrink: 0; }
.toc .mini .t { font-size: 12px; line-height: 1.5; }
.toc .mini .m { font-size: 11px; color: var(--muted); font-family: var(--mono); }

/* ---------- 询价弹层 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(10, 20, 40, .55); z-index: 200;
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.modal {
  width: 680px; max-width: 100%; max-height: 92vh; overflow: auto;
  background: #fff; border-radius: 16px; padding: 26px 30px;
}
.modal h3 { font-size: 19px; margin-bottom: 4px; }
.modal .sub { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.modal .sel { background: #f7f9fc; border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; margin-bottom: 16px; }
.modal .sel .it { display: flex; justify-content: space-between; gap: 10px; font-size: 13px; padding: 5px 0; border-bottom: 1px dashed var(--border); }
.modal .sel .it:last-child { border-bottom: 0; }
.modal .sel .mono { font-family: var(--mono); color: var(--muted); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 13px; color: #41506a; margin-bottom: 5px; }
.field label i { color: var(--accent); font-style: normal; }
.field input, .field textarea {
  width: 100%; border: 1px solid var(--border); border-radius: 8px; padding: 9px 12px;
  font-size: 13.5px; font-family: var(--font); outline: none;
}
.field input:focus, .field textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(18, 89, 208, .1); }
.modal .ft { display: flex; justify-content: space-between; align-items: center; margin-top: 18px; font-size: 12px; color: var(--muted); }

/* ---------- 后台 ---------- */
.admin { display: flex; min-height: 100vh; background: #f2f5f9; }
.admin-side { width: 220px; background: #101c30; color: #c6d3e6; flex-shrink: 0; display: flex; flex-direction: column; }
.admin-side .hd { padding: 18px; font-weight: 800; color: #fff; font-size: 16px; border-bottom: 1px solid #22314b; }
.admin-side a { color: #c6d3e6; display: block; padding: 11px 20px; font-size: 13.5px; border-left: 3px solid transparent; }
.admin-side a:hover, .admin-side a.on { background: #182742; color: #fff; border-left-color: var(--cyan); }
.admin-main { flex: 1; padding: 22px 26px; }
.admin-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.admin-top h2 { font-size: 20px; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 20px; }
.stat { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; }
.stat .k { font-size: 12.5px; color: var(--muted); }
.stat .v { font-size: 26px; font-weight: 800; margin: 4px 0 2px; }
.stat .d { font-size: 12px; color: var(--green); }
.panel { background: #fff; border: 1px solid var(--border); border-radius: 12px; margin-bottom: 18px; }
.panel .ph { padding: 13px 18px; border-bottom: 1px solid var(--border); font-weight: 700; display: flex; justify-content: space-between; align-items: center; }
.panel .pb { padding: 6px 18px 14px; }
.atable { width: 100%; border-collapse: collapse; font-size: 13px; }
.atable th { text-align: left; color: var(--muted); font-weight: 600; padding: 10px 14px; border-bottom: 1px solid var(--border); background: #fafcfe; }
.atable td { padding: 10px 14px; border-bottom: 1px solid #f0f3f8; }
.atable tr:last-child td { border-bottom: 0; }
.atable .mono { font-family: var(--mono); }

/* ---------- 响应式（设计稿示意） ---------- */
@media (max-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .brand-grid { grid-template-columns: repeat(3, 1fr); }
  .post-grid { grid-template-columns: 1fr; }
  .prod-detail { grid-template-columns: 1fr; }
  .article-layout { grid-template-columns: 1fr; }
  .layout { grid-template-columns: 1fr; }
  .side { position: static; }
  .footer .cols { grid-template-columns: 1fr 1fr; }
}

/* ---------- 移动端（≤768px） ---------- */
@media (max-width: 768px) {
  .topbar .container { height: auto; padding: 6px 20px; flex-wrap: wrap; gap: 4px; justify-content: center; }
  .header .container { flex-wrap: wrap; gap: 10px; padding: 12px 20px; }
  .logo { order: 1; }
  .logo .name { font-size: 16px; }
  .logo .mark { width: 36px; height: 36px; font-size: 15px; }
  .header .actions { order: 2; margin-left: auto; gap: 8px; }
  .icon-btn { padding: 8px 10px; font-size: 12px; }
  .searchbar { order: 3; flex-basis: 100%; max-width: none; }
  .searchbar .hint { display: none; }
  .nav .container { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .nav a { flex-shrink: 0; padding: 11px 13px; font-size: 14px; }
  .hero { padding: 40px 0 44px; }
  .hero h1 { font-size: 26px; }
  .hero .sub { font-size: 14px; }
  .hero .trust { flex-wrap: wrap; gap: 12px 22px; }
  .hero .trust b { font-size: 17px; }
  .hero .brands-line { line-height: 1.9; }
  .section { padding: 32px 0; }
  .sec-head h2 { font-size: 20px; }
  .cat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .cat-tile { flex-direction: column; gap: 10px; padding: 14px; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .prod-card .nm { font-size: 13px; }
  .brand-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .brand-cell .lg { height: 60px; font-size: 15px; }
  .post-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; text-align: center; padding: 26px 22px; }
  .cta-band .btns { flex-wrap: wrap; justify-content: center; }
  .prod-detail { grid-template-columns: 1fr; gap: 16px; }
  .pd-img { position: static; padding: 16px; }
  .pd-img .ph { height: 200px; }
  .pd-main h1 { font-size: 18px; }
  .layout { grid-template-columns: 1fr; }
  .side { position: static; }
  .article-layout { grid-template-columns: 1fr; }
  .article { padding: 22px 16px; }
  .article h1 { font-size: 21px; }
  .toc { position: static; }
  .result-item { flex-wrap: wrap; }
  .result-item .rt { width: 100%; margin-left: 0; justify-content: flex-end; }
  .modal { padding: 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .footer .cols { grid-template-columns: 1fr 1fr; gap: 22px; padding: 30px 0 20px; }
  .admin { flex-direction: column; }
  .admin-side { width: 100%; flex-direction: row; overflow-x: auto; }
  .admin-side .hd { display: none; }
  .admin-side a { white-space: nowrap; padding: 10px 13px; border-left: 0; border-bottom: 3px solid transparent; }
  .admin-side a.on { border-bottom-color: var(--cyan); }
  .admin-main { padding: 14px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .vtable { font-size: 12px; }
  .vtable th, .vtable td { padding: 8px; }
  .facet .row { flex-wrap: wrap; }
}

/* ---------- 小屏手机（≤480px） ---------- */
@media (max-width: 480px) {
  .hero h1 { font-size: 22px; }
  .logo .name small { display: none; }
  .brand-grid { grid-template-columns: repeat(2, 1fr); }
  .footer .cols { grid-template-columns: 1fr; }
  .prod-card .ph { height: 110px; }
  .cat-grid { grid-template-columns: 1fr 1fr; }
  .header .actions .icon-btn { padding: 8px; }
}