/* 暖邻商城 · 大众消费级设计系统 */
:root {
  --bg: #faf6f1;
  --bg-soft: #f3ebe3;
  --card: #ffffff;
  --ink: #1f2430;
  --ink-2: #3d4454;
  --muted: #6b7280;
  --line: #ebe4dc;
  --line-strong: #e0d6cb;
  --primary: #e85d3a;
  --primary-ink: #fff8f5;
  --ok: #1f8a5b;
  --warn: #c47a12;
  --out: #9aa0a6;
  --danger: #c23b2a;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 8px 24px rgba(31, 36, 48, 0.06);
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --mono: ui-monospace, Menlo, Consolas, monospace;
  --max: 1120px;
  --pad: 18px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
body > main,
body > .admin-shell {
  flex: 1 0 auto;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
h1, h2, h3 { font-weight: 700; margin: 0 0 8px; letter-spacing: -0.01em; }
code, .mono { font-family: var(--mono); }
.wrap { width: min(var(--max), calc(100% - 2 * var(--pad))); margin: 0 auto; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.hidden { display: none !important; }

.test-banner {
  background: #fff4ee;
  color: #b34720;
  text-align: center;
  font-size: 13px;
  padding: 8px 12px;
  font-weight: 600;
}
.topline {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}
.topline-in {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  flex-wrap: wrap;
}

.site-header {
  background: rgba(255,255,255,0.94);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-header-in {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 64px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  text-decoration: none;
  min-width: 132px;
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 16px;
}
.brand-text strong { font-size: 18px; display: block; line-height: 1.15; }
.brand-text small { color: var(--muted); font-size: 11px; }

.header-search {
  flex: 1;
  display: flex;
  min-width: 180px;
  background: var(--bg-soft);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  overflow: hidden;
  height: 42px;
}
.header-search input {
  flex: 1;
  border: 0;
  background: transparent;
  padding: 0 16px;
  font: inherit;
  font-size: 14px;
  outline: none;
  color: var(--ink);
}
.header-search button {
  border: 0;
  background: var(--primary);
  color: var(--primary-ink);
  font: inherit;
  font-weight: 700;
  padding: 0 18px;
  cursor: pointer;
}

.nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav a {
  text-decoration: none;
  color: var(--ink-2);
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 999px;
}
.nav a.is-on, .nav a[aria-current="page"] {
  background: var(--ink);
  color: #fff;
}
.header-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.header-actions a {
  text-decoration: none;
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 600;
}
.link-quiet {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 14px;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 1px;
}
.link-quiet:hover { color: var(--primary); border-bottom-color: var(--primary); }

.cart-link {
  background: var(--ink) !important;
  color: #fff !important;
  padding: 10px 14px;
  border-radius: 999px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  border: 1px solid var(--line-strong);
}
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-ink);
}
.btn-ink {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.btn-ghost {
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--line-strong);
  font-weight: 600;
}
.btn-danger {
  border-color: var(--danger);
  color: var(--danger);
}
.btn-sm { min-height: 34px; padding: 0 12px; font-size: 13px; }
.btn:disabled, .btn.is-disabled { opacity: 0.45; pointer-events: none; }
.btn-block { width: 100%; }
.btn-quiet {
  background: transparent;
  border-color: var(--line);
  color: var(--muted);
  font-weight: 600;
}
.btn-quiet:hover { color: var(--ink); border-color: var(--line-strong); }
.btn-accent {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-ink);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.kicker {
  color: var(--primary);
  font-weight: 700;
  font-size: 13px;
  margin: 0 0 10px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.note {
  background: #fff7f2;
  border: 1px solid #f0c4b4;
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 14px;
}
.alert { padding: 10px 12px; border: 1px solid var(--line-strong); background: var(--card); border-radius: var(--radius-sm); margin-bottom: 12px; font-size: 13px; }
.alert.ok { border-color: var(--ok); color: var(--ok); }
.alert.err { border-color: var(--danger); color: var(--danger); }

/* Home */
.home { padding: 22px 0 40px; }
.hero {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 18px;
  background: linear-gradient(135deg, #fff7f2, #ffe8dc 55%, #fff);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
  margin-bottom: 22px;
  box-shadow: var(--shadow);
}
.hero h1 { font-size: clamp(28px, 4vw, 40px); line-height: 1.2; }
.hero-lead { margin: 0 0 16px; color: var(--ink-2); max-width: 34em; }
.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.hero-card {
  background: var(--card);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
}
.hero-card-tag {
  align-self: flex-start;
  background: #ffe1d4;
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
}
.hero-price {
  display: flex;
  gap: 8px;
  align-items: baseline;
}
.hero-price em {
  font-style: normal;
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
}
.hero-price s { color: var(--muted); font-size: 14px; }
.hero-stock {
  font-size: 13px;
  color: var(--ok);
  font-weight: 600;
}

.cat-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.cat-bar a, .cat-bar button {
  border: 0;
  background: var(--card);
  color: var(--ink-2);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  text-decoration: none;
}
.cat-bar .is-on {
  background: var(--ink);
  color: #fff;
}
.cat-bar .cat-brand {
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  font-weight: 500;
}
.cat-bar .cat-div {
  width: 8px;
  flex: none;
}

/* 筛选面板：默认折叠，有筛选条件时保持展开 */
.filter-panel {
  margin-bottom: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius, 14px);
  background: var(--card, #fff);
  padding: 0 14px;
}
.filter-panel > summary {
  cursor: pointer;
  font-weight: 700;
  padding: 12px 0;
  list-style: none;
}
.filter-panel > summary::-webkit-details-marker { display: none; }
.filter-panel > summary::after {
  content: '＋';
  float: right;
  color: var(--muted);
  font-weight: 600;
}
.filter-panel[open] > summary::after { content: '－'; }
.filter-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: end;
  padding-bottom: 14px;
}
.filter-form .field {
  flex: 1;
  min-width: 140px;
  margin: 0;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.toolbar h2 { font-size: 20px; margin: 0; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.card-product {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
}
.card-product.is-deal { border-color: #f0c4b4; }
.card-product.is-out { opacity: 0.58; }
.card-media {
  position: relative;
  display: block;
}
.deal-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 999px;
  z-index: 1;
}
.thumb {
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 28px;
  margin: 10px;
  border-radius: 12px;
  background: #f0ebe4;
  overflow: hidden;
}
.thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #fff;
  border-radius: 12px;
  display: block;
  padding: 18px;
  box-sizing: border-box;
}
.card-body {
  padding: 4px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.card-body h3 { font-size: 16px; line-height: 1.3; margin: 0; }
.card-body > p { margin: 0; color: var(--muted); font-size: 13px; }
.card-price {
  display: flex;
  gap: 6px;
  align-items: baseline;
  margin-top: 4px;
}
.card-price strong {
  color: var(--primary);
  font-size: 22px;
  font-weight: 800;
}
.card-price s { color: var(--muted); font-size: 12px; }
.card-price em { font-style: normal; color: var(--muted); font-size: 12px; }
.card-foot {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding-top: 8px;
}
.stock { font-size: 12px; font-weight: 700; }
.stock.ok, .stock.is-ok { color: var(--ok); }
.stock.low, .stock.is-low { color: var(--warn); }
.stock.out, .stock.is-out { color: var(--out); }

.trust-row {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.trust-row > div {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}
.trust-row strong { display: block; margin-bottom: 4px; }
.trust-row span { color: var(--muted); font-size: 13px; }

.side-notes {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.side-notes > div {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}
.side-notes h3 { font-family: var(--sans); font-size: 14px; }

/* Product */
.product-page { padding: 20px 0 40px; }
.crumb { font-size: 13px; color: var(--muted); margin: 0 0 14px; }
.pdp-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 22px;
  align-items: start;
}
.frame-1x1 {
  aspect-ratio: 1 / 1;
  width: 100%;
  max-width: min(100%, 480px);
  border: 1px solid var(--line);
  background: var(--card);
  padding: 14px;
  border-radius: 18px;
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
}
.frame-1x1 img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}
.frame-1x1 .thumb { width: 100%; height: 100%; margin: 0; font-size: 42px; }

.price-box {
  background: linear-gradient(180deg, #fff7f2, #fff);
  border: 1px solid #f0c4b4;
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 16px;
}
.price-main {
  display: flex;
  gap: 10px;
  align-items: baseline;
  flex-wrap: wrap;
}
.price-label { color: var(--primary); font-weight: 700; font-size: 13px; }
.price {
  color: var(--primary);
  font-size: 36px;
  font-weight: 800;
}
.price-xl { font-size: 36px; }
.price-block s, .price-main s { color: var(--muted); }

.block { margin-bottom: 16px; }
.block-head {
  font-weight: 800;
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: baseline;
  flex-wrap: wrap;
}
.block-head h2 { font-family: var(--sans); font-size: 16px; margin: 0; }
.hint { font-weight: 500; color: var(--muted); font-size: 12px; }

.skus { display: grid; gap: 8px; }
.sku {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  width: 100%;
  background: var(--card);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font: inherit;
  cursor: pointer;
  text-align: left;
}
.sku.is-on {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232, 93, 58, 0.15);
  background: #fffaf7;
}
.sku.is-disabled { opacity: 0.5; cursor: not-allowed; }
.sku-name { font-weight: 700; }
.sku-price { font-weight: 800; }
.sku-meta { color: var(--muted); font-size: 12px; }

.buybox {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.buy-actions { display: flex; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.buy-actions .btn { flex: 1; min-height: 44px; min-width: 120px; }
.buy-pay { margin: 0; font-size: 12px; color: var(--muted); }

.redeem-box, .a-guide {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
}
.redeem-url code, .key-line {
  display: block;
  margin-top: 4px;
  background: var(--bg-soft);
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--ink);
  word-break: break-all;
  font-family: var(--mono);
  font-size: 12px;
}
.steps {
  margin: 8px 0;
  padding-left: 18px;
  font-size: 14px;
  color: var(--ink-2);
}

.related { margin-top: 28px; }
.related-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.mini {
  display: flex;
  gap: 10px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  text-decoration: none;
  color: inherit;
}
.mini .thumb {
  width: 56px;
  height: 56px;
  margin: 0;
  font-size: 14px;
  aspect-ratio: auto;
}
.mini strong { display: block; font-size: 14px; }
.mini span { color: var(--muted); font-size: 12px; }

/* Checkout / forms */
.checkout-page, .order-page, .simple-page { padding: 28px 0 56px; }
.form-card {
  width: min(720px, 100%);
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow);
}
.form-card.wide { width: min(920px, 100%); }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--ink-2); font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: var(--card);
  padding: 12px 14px;
  font: inherit;
  font-size: 14px;
  border-radius: var(--radius-sm);
}
.summary-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.pay-channels { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0 16px; }
.pay-channels label {
  border: 1px solid var(--line-strong);
  padding: 12px 14px;
  cursor: pointer;
  background: var(--bg-soft);
  min-width: 140px;
  border-radius: var(--radius-sm);
}
.pay-channels label.is-on {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232, 93, 58, 0.15);
  background: #fffaf7;
}
.pay-channels .soft { opacity: 0.75; }
.pay-channels small { display: block; color: var(--muted); }

/* Order page */
.order-page { display: block; }
.order-top { margin-bottom: 16px; }
.status-pill {
  display: inline-flex;
  align-items: center;
  background: #e8f7ef;
  color: var(--ok);
  font-weight: 800;
  font-size: 13px;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.status-pill.warn {
  background: #fff4e5;
  color: #b45309;
}
.status-pill.danger {
  background: #fde8e8;
  color: var(--danger);
}
.status-pill.muted {
  background: var(--bg-soft);
  color: var(--muted);
}
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.muted, .stock.out, .small.muted {
  color: #6b7280;
}
.table { width: 100%; border-collapse: collapse; }
@media (max-width: 720px) {
  .table { display: block; overflow-x: auto; white-space: nowrap; }
}
.order-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 14px;
  align-items: start;
}
.deliver-card, .steps-card, .side-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
}
.deliver-head {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}
.deliver-head > div:nth-child(2) { flex: 1; }
.deliver-head strong { display: block; }
.deliver-head span { color: var(--muted); font-size: 13px; }
.deliver-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
}
.key-note { margin: 8px 0 0; color: var(--muted); font-size: 12px; }
.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 12px;
}
.meta-grid span { display: block; color: var(--muted); font-size: 12px; }
.meta-grid strong { font-size: 14px; }
.support-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.support-list li { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font-size: 14px; }

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 28px;
  padding: 24px 0 36px;
  color: var(--muted);
  font-size: 13px;
}
.footer-in { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* Admin keeps functional density */
.admin-shell { display: grid; grid-template-columns: 220px 1fr; min-height: calc(100vh - 64px); }
.admin-side {
  border-right: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 18px 14px;
}
.admin-side h2 { font-family: var(--sans); font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.admin-side a {
  display: block;
  text-decoration: none;
  padding: 8px 10px;
  font-size: 14px;
  color: var(--ink-2);
  border-radius: 8px;
}
.admin-side a.is-on { background: var(--card); color: var(--ink); font-weight: 600; }
.admin-main { padding: 22px; }
.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  font-size: 13px;
}
.table th, .table td {
  border-bottom: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.table th { background: var(--bg-soft); font-size: 12px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; }
.form-grid .full { grid-column: 1 / -1; }
.toast-root {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 50;
  display: grid;
  gap: 8px;
}
.toast {
  background: var(--ink);
  color: var(--card);
  padding: 10px 14px;
  font-size: 13px;
  max-width: 280px;
  border-radius: 10px;
}

@media (max-width: 980px) {
  .hero, .pdp-grid, .order-grid, .trust-row, .side-notes, .related-row {
    grid-template-columns: 1fr;
  }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ========== 移动端整体体验 ========== */
@media (max-width: 640px) {
  :root { --pad: 14px; }

  .topline { display: none; }
  .test-banner { font-size: 11px; padding: 6px 10px; line-height: 1.35; }

  .site-header-in { padding: 6px 0; min-height: 0; gap: 6px; }
  .brand { min-width: 0; gap: 8px; }
  .brand-mark { width: 32px; height: 32px; border-radius: 10px; font-size: 14px; }
  .brand-text strong { font-size: 15px; }
  .brand-text small { display: none; }
  .header-actions { margin-left: auto; gap: 8px; }
  .header-actions a { font-size: 13px; }
  .cart-link { padding: 8px 12px !important; font-size: 13px !important; }
  .header-search { order: 3; width: 100%; flex: none; height: 40px; }
  .header-search input { font-size: 16px; padding: 0 12px; }
  .header-search button { padding: 0 14px; font-size: 14px; }
  .nav {
    order: 4;
    width: 100%;
    flex: none;
    overflow-x: auto;
    flex-wrap: nowrap;
    gap: 4px;
    scrollbar-width: none;
  }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { flex: none; padding: 7px 11px; font-size: 13px; }

  .hero { display: block; padding: 14px; gap: 12px; }
  .hero-card { display: none; }
  .hero h1 { font-size: 20px; line-height: 1.3; margin-bottom: 6px; }
  .hero h1 br { display: none; }
  .hero-lead { font-size: 12px; margin-bottom: 10px; line-height: 1.5; }
  .hero-actions { gap: 8px; }
  .hero-actions .btn { min-height: 40px; padding: 0 12px; font-size: 13px; flex: 1; }

  .cat-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 6px;
    margin: 0 calc(-1 * var(--pad)) 10px;
    padding: 0 var(--pad) 4px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .cat-bar::-webkit-scrollbar { display: none; }
  .cat-bar a { flex: none; padding: 7px 12px; font-size: 12px; white-space: nowrap; }

  .filter-panel { margin-bottom: 10px; padding: 0 12px; }
  .filter-panel > summary { padding: 10px 0; font-size: 14px; }
  .filter-form { gap: 8px; }
  .filter-form .field { min-width: 100%; }
  .filter-form .btn { width: 100%; }

  .toolbar { margin-bottom: 10px; gap: 6px; }
  .toolbar h2 { font-size: 17px; }
  .toolbar .muted { font-size: 12px; }

  /* 双列紧凑商品卡 */
  .product-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .card-product { box-shadow: none; border-radius: 12px; }
  .card-media .thumb {
    margin: 8px 8px 0;
    font-size: 18px;
    aspect-ratio: 5 / 4;
    max-height: 120px;
  }
  .thumb img { padding: 8px; }
  .deal-badge { top: 6px; left: 6px; font-size: 11px; padding: 3px 7px; }
  .card-body { padding: 0 10px 10px; gap: 4px; }
  .card-body h3 {
    font-size: 13px;
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .card-body > p {
    font-size: 11px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .card-price { margin-top: 2px; gap: 4px; }
  .card-price strong { font-size: 17px; }
  .card-price s { font-size: 11px; }
  .card-foot { display: flex; flex-direction: column; align-items: stretch; gap: 6px; }
  .card-foot .btn { width: 100%; min-height: 34px; font-size: 12px; padding: 0 8px; }
  .stock { font-size: 11px; }

  .side-notes { grid-template-columns: 1fr; gap: 8px; margin-top: 14px; }
  .side-notes > div { padding: 12px; }
  .trust-row {
    display: flex !important;
    grid-template-columns: none;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .trust-row::-webkit-scrollbar { display: none; }
  .trust-row span { flex: none; font-size: 12px; white-space: nowrap; }

  .product-page { padding: 12px 0 28px; }
  .crumb {
    font-size: 11px;
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .pdp-grid { grid-template-columns: 1fr; gap: 12px; }
  /* B03：手机端主图仍保持 1:1，不改成横条 */
  .frame-1x1 {
    aspect-ratio: 1 / 1;
    height: auto;
    max-height: none;
    width: min(100%, 420px);
    margin: 0 auto;
    padding: 10px;
    border-radius: 14px;
  }
  .frame-1x1 img, .frame-1x1 .thumb { max-height: none; height: 100%; }
  .product-page .small.muted { display: none; }
  .price-box { padding: 12px; margin-bottom: 12px; }
  .price, .price-xl { font-size: 28px; }
  .block-head h2 { font-size: 15px; }
  .sku { padding: 12px 14px; }
  .buybox { padding: 12px 12px 88px; }
  .buy-actions {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 30;
    display: flex;
    gap: 8px;
    background: rgba(255,255,255,0.97);
    border-top: 1px solid var(--line);
    margin: 0;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
    box-shadow: 0 -8px 20px rgba(31, 36, 48, 0.08);
  }
  .buy-actions .btn { flex: 1; min-height: 44px; }
  .buy-actions .btn-ghost { flex: 0 0 40%; }

  input, select, textarea { font-size: 16px !important; min-height: 42px; }
  .btn { min-height: 42px; font-size: 14px; }
  .btn-block, .buy-actions .btn { min-height: 46px; }

  .checkout-page .form-card.wide { padding: 14px; }
  .summary-line { padding: 8px 0; font-size: 13px; }
  .pay-channels { gap: 8px; }
  .pay-channels label { min-width: 0; flex: 1; padding: 10px; }
  .order-grid { grid-template-columns: 1fr; gap: 12px; }
  .side-card { padding: 12px; }

  .admin-shell { grid-template-columns: 1fr; gap: 12px; }
  .admin-side { padding: 12px; }
  .admin-nav {
    display: flex;
    overflow-x: auto;
    gap: 6px;
    scrollbar-width: none;
  }
  .admin-nav::-webkit-scrollbar { display: none; }
  .admin-nav a { flex: none; white-space: nowrap; padding: 8px 12px; }
  .form-grid { grid-template-columns: 1fr; gap: 10px; }
  .table-wrap, .table { overflow-x: auto; }

  .footer-in {
    flex-direction: column;
    gap: 12px;
    text-align: left;
    padding: 18px 0 24px;
  }
  .site-footer { margin-top: 20px; }

  .simple-page { padding: 16px 0 28px; }
  .simple-page .form-card { padding: 16px; }
  .form-card h1 { font-size: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* R10/R11: admin mobile+tablet no document overflow */
@media (max-width: 900px) {
  .admin-shell { min-width: 0; }
  .admin-main { padding: 12px; overflow-x: hidden; min-width: 0; }
  .admin-main .table {
    display: block;
    overflow-x: auto;
    max-width: 100%;
  }
  .admin-main .panel { overflow-x: hidden; max-width: 100%; }
  .admin-main input,
  .admin-main select,
  .admin-main textarea { max-width: 100%; }
  .admin-main .form-grid { overflow-x: hidden; max-width: 100%; }
}