/* VapePL 品牌站共享样式 — 企业营销风 · 少圆角 · 无全宽区块 */
:root {
  --bg: #ffffff;
  --bg-soft: #f6f7f9;
  --bg-deep: #0f1730;
  --card: #ffffff;
  --text: #0f1722;
  --muted: #5b6472;
  --line: #e2e6ec;
  --line-strong: #c9d2de;
  --accent: #1652f0;
  --accent-dark: #0f3ecb;
  --accent-soft: #eef3ff;
  --hot: #e5484d;
  --ok: #1a9e5c;
  --warn: #d97706;
  --badge-sale: #e5484d;
  --badge-out: #8a919e;
  --radius: 2px; /* 少圆角：仅 2px 微锐角，企业风 */
  --radius-md: 4px;
  --wrap: 1180px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 34, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 23, 34, 0.08);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-feature-settings: "cv11", "ss01";
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
main.wrap { padding-top: 4px; padding-bottom: 24px; }
h1, h2, h3, h4 { line-height: 1.22; letter-spacing: -0.015em; }
h1 { font-size: 2.05rem; margin: 0.35em 0 0.35em; font-weight: 800; }
h2 { font-size: 1.5rem; margin: 1.5em 0 0.6em; font-weight: 800; }
h3 { font-size: 1.12rem; margin: 1.2em 0 0.4em; font-weight: 700; }
p { margin: 0.55em 0; }
.lead { color: var(--muted); font-size: 1.08rem; }
.lead-sm { color: var(--muted); font-size: 1rem; max-width: 760px; }
.count { color: var(--muted); font-weight: 600; font-size: 0.85em; }
.anchor { display: block; position: relative; top: -70px; visibility: hidden; }

/* ===== 通用小物 ===== */
.kicker {
  display: inline-block;
  font-size: 0.78rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent-dark);
  background: var(--accent-soft);
  padding: 4px 12px; border-radius: var(--radius);
  border-left: 3px solid var(--accent);
}
.kicker.sm { padding: 3px 10px; font-size: 0.72rem; }

.badge {
  display: inline-block; font-size: 0.72rem; font-weight: 700;
  padding: 3px 9px; border-radius: var(--radius); letter-spacing: 0.02em;
}
.badge.sale { background: #fdebec; color: var(--badge-sale); }
.badge.out { background: #eef0f3; color: var(--badge-out); }
.badge.puffs { background: var(--accent-soft); color: var(--accent-dark); }
.badge.hot { background: #fff3e0; color: #c2410c; }
.badge.bestseller { background: #fef08a; color: #854d0e; }
.badge.cat {
  background: transparent; color: var(--cc, var(--accent-dark));
  border: 1px solid var(--cc, var(--accent-dark));
}
.badge.big { font-size: 0.82rem; padding: 4px 12px; vertical-align: middle; }

/* ===== 按钮 ===== */
.btn-buy {
  display: inline-block; background: var(--accent); color: #fff !important;
  padding: 13px 24px; border-radius: var(--radius); font-weight: 700; font-size: 1rem;
  border: none; text-align: center; letter-spacing: 0.01em;
  box-shadow: 0 2px 0 rgba(15, 62, 203, 0.35);
  transition: background 0.15s, transform 0.1s;
}
.btn-buy:hover { background: var(--accent-dark); text-decoration: none; transform: translateY(-1px); }
.btn-buy.lg { padding: 16px 32px; font-size: 1.08rem; }
.btn-buy.sm { padding: 10px 16px; font-size: 0.9rem; }
.btn-ghost {
  display: inline-block; border: 1px solid var(--line-strong); color: var(--text) !important;
  background: #fff; padding: 12px 22px; border-radius: var(--radius); font-weight: 600;
  transition: border-color 0.15s, color 0.15s;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent) !important; text-decoration: none; }
.btn-ghost.sm { padding: 8px 14px; font-size: 0.88rem; }

/* ===== 头部（企业风：标识 + 导航 + 主 CTA） ===== */
.site-head {
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50;
}
.head-in { display: flex; align-items: center; gap: 24px; padding-top: 14px; padding-bottom: 14px; }
.logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 800; font-size: 1.08rem; color: var(--text); white-space: nowrap;
  letter-spacing: -0.01em;
}
.logo-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; background: var(--accent); color: #fff;
  font-weight: 800; border-radius: var(--radius); font-size: 0.95rem;
}
.site-head nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.site-head nav a {
  color: var(--muted); font-weight: 500; font-size: 0.95rem;
  padding: 8px 12px; border-radius: var(--radius);
}
.site-head nav a:hover { color: var(--text); background: var(--bg-soft); text-decoration: none; }
.head-cta {
  background: var(--accent); color: #fff !important;
  padding: 10px 18px; border-radius: var(--radius); font-weight: 700; font-size: 0.92rem;
  white-space: nowrap; box-shadow: 0 2px 0 rgba(15, 62, 203, 0.35);
}
.head-cta:hover { background: var(--accent-dark); text-decoration: none; }

/* ===== 信任条（置于 .wrap 内的水平分隔面板） ===== */
.trust-bar {
  background: var(--bg-deep); color: #cdd6f4;
  font-size: 0.82rem; letter-spacing: 0.02em;
  margin-top: 16px; border-radius: var(--radius);
  display: flex; gap: 26px; flex-wrap: wrap; align-items: center;
  padding: 10px 20px;
}
.trust-bar span { white-space: nowrap; }

/* ===== 区块（内容面板；无全宽背景，统一在 .wrap 内） ===== */
section.block { padding: 22px 0; }
section.block.alt {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 28px;
  margin: 22px 0;
}
.block-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 14px; flex-wrap: wrap; margin-bottom: 18px;
  border-bottom: 1px solid var(--line); padding-bottom: 14px;
}
.block-head h2 { margin: 6px 0 0; }
.block-head .more { font-size: 0.92rem; font-weight: 600; }

/* 通用面板（带左侧强调色条） */
.panel {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-md); padding: 22px 26px;
  position: relative;
  display: grid; grid-template-columns: 4px 1fr; gap: 18px;
}
.panel-side { background: var(--accent); border-radius: var(--radius); width: 4px; }
.panel-main { min-width: 0; }
.panel h2 { margin-top: 0; font-size: 1.22rem; }

/* ===== HERO ===== */
.hero { padding: 30px 0 6px; }
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 40px; align-items: center;
}
.hero h1 { font-size: 2.5rem; margin: 14px 0 14px; }
.hero .lead { max-width: 560px; }
.hero-cta { display: flex; gap: 14px; margin: 24px 0 12px; flex-wrap: wrap; }
.hero-proof { color: var(--ok); font-weight: 600; font-size: 0.92rem; margin: 6px 0 0; }
.hero-media {
  border: 1px solid var(--line); border-radius: var(--radius-md);
  background: var(--bg-soft); padding: 22px;
}
.hero-media img { width: 100%; height: auto; object-fit: contain; }
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--radius-md);
  margin-top: 26px; overflow: hidden;
}
.hero-stats .stat {
  background: #fff; padding: 14px 16px;
  border-radius: 0;
}
.hero-stats .stat b { display: block; font-size: 1.3rem; }
.hero-stats .stat span { color: var(--muted); font-size: 0.82rem; }

/* ===== 折扣阶梯面板 ===== */
.tiers { margin: 22px 0; }
.tiers-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 12px; margin: 16px 0 14px;
}
.tier {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 14px; text-align: center;
}
.tier-qty { display: block; color: var(--muted); font-size: 0.82rem; letter-spacing: 0.04em; }
.tier-pct { display: block; font-size: 1.5rem; font-weight: 800; color: var(--ok); margin-top: 4px; }
.tiers-note { color: var(--muted); font-size: 0.9rem; }
.tiers-cta { margin-top: 12px; }

/* ===== 四大口味分类卡 ===== */
.cat-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.cat-card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-md); padding: 22px;
  display: flex; flex-direction: column; gap: 6px;
  color: var(--text); text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
  border-top: 3px solid var(--cc, var(--accent));
}
.cat-card:hover {
  text-decoration: none; border-color: var(--cc, var(--accent));
  box-shadow: var(--shadow-md); transform: translateY(-2px);
}
.cat-icon {
  display: inline-flex; width: 44px; height: 44px;
  background: var(--bg-soft); color: var(--cc, var(--accent));
  border: 1px solid var(--line); border-radius: var(--radius);
  align-items: center; justify-content: center;
}
.cat-icon svg { width: 24px; height: 24px; }
.cat-name { font-weight: 800; font-size: 1.08rem; margin-top: 6px; }
.cat-en { color: var(--muted); font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; }
.cat-blurb { color: var(--muted); font-size: 0.9rem; margin: 4px 0 8px; }
.cat-count { color: var(--cc, var(--accent)); font-weight: 700; font-size: 0.88rem; margin-top: auto; }

/* ===== 商品卡片 ===== */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
/* 折叠线以下的卡片跳过渲染工作，降低首屏主线程占用（不影响可访问性树） */
.card { content-visibility: auto; contain-intrinsic-size: 240px 380px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-md);
  overflow: hidden; display: flex; flex-direction: column;
  transition: box-shadow 0.15s, border-color 0.15s, transform 0.15s;
}
.card:hover { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-2px); }
/* 筛选隐藏：display:flex 会覆盖 [hidden] 默认样式，需显式声明 */
.card[hidden], .cat-block[hidden] { display: none !important; }
.card-media { display: block; background: #fff; border-bottom: 1px solid var(--line); }
.card-media img { width: 100%; aspect-ratio: 1; object-fit: contain; }
.card .card-body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card .card-title { font-weight: 600; font-size: 0.96rem; color: var(--text); line-height: 1.35; }
.card .card-title:hover { color: var(--accent); text-decoration: none; }
.card .card-meta { color: var(--muted); font-size: 0.82rem; }
.card .btn-buy.sm { align-self: stretch; margin-top: auto; }
.price-row { display: flex; align-items: baseline; gap: 10px; }
.price { font-weight: 800; font-size: 1.14rem; }
.price-old { color: var(--muted); text-decoration: line-through; font-size: 0.88rem; }
.badges { display: flex; gap: 6px; flex-wrap: wrap; }

/* ===== 型号卡（对比栅格） ===== */
.model-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.model-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md);
  display: grid; grid-template-columns: 140px 1fr; overflow: hidden;
  transition: box-shadow 0.15s, border-color 0.15s;
}
.model-card:hover { border-color: var(--accent); box-shadow: var(--shadow-md); }
.model-media { background: var(--bg-soft); display: flex; align-items: stretch; justify-content: center; padding: 0; overflow: hidden; }
.model-media img { width: 100%; height: 100%; object-fit: contain; padding: 12px; }
.model-body { padding: 16px 18px; display: flex; flex-direction: column; gap: 8px; }
.model-title { font-weight: 700; font-size: 1rem; color: var(--text); line-height: 1.3; }
.model-title:hover { color: var(--accent); text-decoration: none; }
.model-meta { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 6px 10px; margin: 4px 0; padding: 0; }
.model-meta div { display: flex; flex-direction: column; min-width: 0; }
.model-meta dt { color: var(--muted); font-size: 0.72rem; letter-spacing: 0.04em; text-transform: uppercase; }
.model-meta dd { margin: 2px 0 0; font-weight: 700; font-size: 0.88rem; white-space: nowrap; }

/* ===== 型号页顶部 Hero ===== */
.model-hero {
  display: grid; grid-template-columns: 300px 1fr; gap: 30px;
  border: 1px solid var(--line); border-radius: var(--radius-md);
  padding: 24px; margin: 18px 0; background: #fff;
}
.model-hero-media { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }
.model-hero-info h1 { margin-top: 0; }

/* ===== 口味筛选 chips ===== */
.flavor-filter { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 22px; }
.chip {
  border: 1px solid var(--line-strong); background: #fff; color: var(--text);
  border-radius: var(--radius); padding: 8px 14px; font-size: 0.86rem; font-weight: 600;
  cursor: pointer; transition: all 0.15s;
}
.chip:hover { border-color: var(--accent); }
.chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.chip[data-cat]:not([data-cat="all"]).active { background: var(--cc, var(--accent)); border-color: var(--cc, var(--accent)); color: #fff; }

/* ===== 商品详情页 ===== */
.prod-layout { display: grid; grid-template-columns: minmax(0, 440px) minmax(0, 1fr); gap: 34px; padding: 22px 0; }
.prod-media { border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--bg-soft); padding: 20px; }
.prod-media img { width: 100%; height: auto; }
.prod-info h1 { margin-top: 0; }
.prod-info .price-big { font-size: 2.1rem; font-weight: 800; }
.prod-info .price-old-big { color: var(--muted); text-decoration: line-through; font-size: 1.15rem; margin-left: 12px; }
.stock-ok { color: var(--ok); font-weight: 700; }
.stock-out { color: var(--badge-out); font-weight: 700; }
.spec-line { color: var(--muted); font-size: 0.94rem; margin: 12px 0; }
.flavor-profile { background: #fff; }
.q-answer { background: var(--accent-soft); border-color: var(--accent-soft); }
.q-answer .panel-side { background: var(--accent); }
.flavor-profile .panel-side { background: var(--warn); }

.spec-table { width: 100%; border-collapse: collapse; margin: 12px 0; background: #fff; border: 1px solid var(--line); }
.spec-table th, .spec-table td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); }
.spec-table th { color: var(--muted); font-weight: 600; width: 42%; background: var(--bg-soft); }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: none; }

.flavor-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.flavor-tag {
  background: #fff; color: var(--cc, var(--accent-dark));
  border: 1px solid var(--cc, var(--accent-dark));
  border-radius: var(--radius); padding: 5px 12px; font-size: 0.85rem; font-weight: 600;
}
.flavor-tag:hover { background: var(--cc, var(--accent)); color: #fff; text-decoration: none; }

.link-list { list-style: none; padding: 0; margin: 8px 0; }
.link-list li { padding: 8px 0; border-bottom: 1px solid var(--line); }
.link-list li:last-child { border-bottom: none; }
.link-list a { font-weight: 600; }

/* ===== FAQ ===== */
.faq-list details {
  border: 1px solid var(--line); border-radius: var(--radius-md);
  margin: 10px 0; background: #fff;
}
.faq-list summary {
  cursor: pointer; font-weight: 600; padding: 14px 18px;
  list-style: none; position: relative; padding-right: 44px;
}
.faq-list summary::after {
  content: "+"; position: absolute; right: 18px; top: 50%;
  transform: translateY(-50%); color: var(--muted); font-size: 1.2rem;
}
.faq-list details[open] summary::after { content: "−"; }
.faq-list .faq-a { padding: 0 18px 16px; color: var(--muted); }

/* ===== 博客列表（卡片化美化） ===== */
.article-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 18px;
}
.article-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md);
  transition: box-shadow 0.15s, border-color 0.15s, transform 0.15s;
}
.article-card:hover { border-color: var(--accent); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.article-link { display: block; padding: 20px 22px; color: var(--text); }
.article-link:hover { text-decoration: none; }
.article-kicker {
  display: inline-block; font-size: 0.76rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--accent-dark); margin-bottom: 8px;
}
.article-card h3 { margin: 4px 0 8px; font-size: 1.06rem; line-height: 1.35; }
.article-card p { color: var(--muted); font-size: 0.9rem; margin: 0 0 12px; }
.article-more { color: var(--accent); font-weight: 700; font-size: 0.9rem; }

/* ===== 文章页布局 ===== */
.article-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 30px;
  padding: 18px 0;
}
.article-body h2 { margin-top: 1.6em; }
.article-body table { border-collapse: collapse; width: 100%; margin: 12px 0; background: #fff; border: 1px solid var(--line); }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; }
.article-body th { background: var(--bg-soft); }
.article-body time.crumbs { display: block; margin: 6px 0 16px; }
.article-side .rel-articles { position: sticky; top: 84px; }

/* ===== 收尾 CTA 面板 ===== */
.cta-panel {
  background: var(--bg-deep); color: #fff;
  border-radius: var(--radius-md); padding: 38px 30px;
  margin: 28px 0; text-align: center;
}
.cta-panel h2 { color: #fff; margin-top: 0; }
.cta-panel p { color: #cdd6f4; max-width: 560px; margin: 10px auto 20px; }
.cta-panel .btn-buy { background: #fff; color: var(--accent) !important; }
.cta-panel .btn-buy:hover { background: var(--accent-soft); }

/* ===== 最近订单 / 客户评价 ===== */
.orders-block, .reviews-block { padding: 22px 0; }
.orders-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; margin-top: 14px; }
.order-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 14px 16px; }
.order-head { display: flex; align-items: center; gap: 10px; font-size: 0.84rem; color: var(--muted); }
.order-cust { font-weight: 700; color: var(--text); }
.order-when { flex: 1; }
.order-total { font-weight: 800; color: var(--text); font-size: 1rem; }
.order-items { list-style: none; padding: 0; margin: 10px 0; }
.order-item { display: flex; align-items: center; gap: 10px; padding: 6px 0; }
.order-thumb img { width: 40px; height: 40px; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--line); }
.order-line { flex: 1; display: flex; flex-direction: column; font-size: 0.85rem; }
.order-name { font-weight: 600; }
.order-var { color: var(--muted); font-size: 0.8rem; }
.order-qty { color: var(--muted); font-weight: 600; }
.order-foot { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 10px; margin-top: 6px; font-size: 0.82rem; color: var(--muted); }
.order-cta { color: var(--accent); font-weight: 700; font-size: 0.85rem; }
.orders-live { color: var(--muted); font-size: 0.82rem; }

.reviews-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin-top: 14px; }
.review-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 18px; }
.review-stars { color: #f59e0b; font-size: 1rem; letter-spacing: 2px; }
.review-text { margin: 10px 0; font-size: 0.92rem; }
.review-meta { color: var(--muted); font-size: 0.8rem; }

/* ===== 粘性 CTA（移动端悬浮） ===== */
.sticky-cta {
  position: sticky; bottom: 0; z-index: 40;
  display: none;
  align-items: center; justify-content: space-between; gap: 14px;
  background: #fff; border-top: 1px solid var(--line);
  box-shadow: 0 -4px 16px rgba(22, 82, 240, 0.10);
  padding: 10px 16px;
}
.sticky-cta .sticky-cta-info { font-size: 0.85rem; color: var(--muted); }

/* ===== 404 ===== */
.notfound { padding: 70px 0; text-align: center; }
.notfound h1 { font-size: 3rem; margin-bottom: 0.2em; }
.notfound .hero-cta { justify-content: center; }

/* ===== 面包屑 ===== */
.crumbs { color: var(--muted); font-size: 0.85rem; padding: 14px 0 0; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { margin: 0 6px; color: #b3bcc8; }

/* ===== 页脚 ===== */
.site-foot { border-top: 1px solid var(--line); margin-top: 40px; padding: 38px 0 26px; background: var(--bg-soft); }
.foot-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; }
.foot-brand h4 { margin: 0 0 10px; font-size: 1.02rem; }
.foot-brand p { color: var(--muted); font-size: 0.92rem; }
.foot-col h4 { margin: 0 0 10px; font-size: 0.88rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.foot-col nav { display: flex; flex-direction: column; gap: 6px; }
.foot-col nav a { color: var(--text); font-size: 0.92rem; }
.foot-legal { color: var(--muted); font-size: 0.82rem; margin-top: 26px; border-top: 1px solid var(--line); padding-top: 18px; }

/* ===== 动效降级（无障碍 + 减少合成开销） ===== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-media { order: -1; max-width: 420px; margin: 0 auto; }
  .article-layout { grid-template-columns: 1fr; }
  .article-side .rel-articles { position: static; }
}
@media (max-width: 860px) {
  .prod-layout { grid-template-columns: 1fr; }
  .foot-top { grid-template-columns: 1fr; }
  .head-in { flex-wrap: wrap; gap: 10px; }
  .hero h1 { font-size: 1.7rem; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .tiers-grid { grid-template-columns: repeat(2, 1fr); }
  .model-hero { grid-template-columns: 1fr; }
  .sticky-cta { display: flex; }
  .trust-bar { gap: 14px; padding: 10px 16px; }
  section.block.alt { padding: 18px; }
}
@media (max-width: 520px) {
  .cat-grid { grid-template-columns: 1fr; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
}