/* Meta 系简洁现代风：蓝白中性色、胶囊控件、轻阴影；移动端优先；深浅色模式 */
:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --text: #1c1e21;
  --muted: #65676b;
  --primary: #1877f2;
  --primary-ink: #ffffff;
  --border: #e4e6eb;
  --shadow: 0 1px 2px rgba(0,0,0,.08), 0 4px 12px rgba(0,0,0,.05);
  --radius: 14px;
  --danger: #e0245e;
  --ok: #31a24c;
}
[data-theme="dark"] {
  --bg: #18191a;
  --surface: #242526;
  --text: #e4e6eb;
  --muted: #b0b3b8;
  --primary: #2d88ff;
  --border: #3e4042;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 12px rgba(0,0,0,.25);
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  line-height: 1.6; font-size: 16px;
}
.container { max-width: 1080px; margin: 0 auto; padding: 16px; }
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; background: var(--surface);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 700; font-size: 1.1rem; color: var(--text); text-decoration: none; }
.topnav { display: flex; gap: 10px; align-items: center; }
.topnav a { color: var(--text); text-decoration: none; font-size: .95rem; }
.theme-toggle {
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  border-radius: 999px; width: 36px; height: 36px; cursor: pointer;
}
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px;
}
.pill {
  display: inline-block; border: 1px solid var(--border); border-radius: 999px;
  padding: 8px 18px; background: var(--surface); color: var(--text);
  text-decoration: none; cursor: pointer; font-size: .95rem;
}
.pill.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.pill.ghost { background: transparent; }
.pill.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.pill.small { padding: 4px 12px; font-size: .85rem; }
button.pill { font-family: inherit; }
.hero { text-align: center; padding: 32px 0 16px; }
.hero.compact { padding: 12px 0 4px; }
.hero.compact h1 { margin-bottom: 4px; font-size: 1.5rem; }
.hero h1 { margin: 0 0 8px; font-size: 1.8rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.market-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
@media (max-width: 560px) { .market-grid { grid-template-columns: 1fr; } }
.market-card {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 32px 16px; text-decoration: none; color: var(--text);
}
.market-flag { font-size: 2.4rem; }
.market-name { font-size: 1.3rem; font-weight: 700; }
.filters { margin: 10px 0; display: flex; flex-direction: column; gap: 8px; }
.filters.card { padding: 10px 12px; }
.filter-row { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-row label { display: flex; flex-direction: column; gap: 2px; font-size: .78rem; min-width: 105px; }
.filter-row label.grow { flex: 1; min-width: 150px; }
.size-btns { display: flex; gap: 8px; flex-wrap: wrap; margin: 6px 0 12px; }
.variant-picker { margin-top: 10px; }
.variant-list { margin-top: 12px; }
.variant-table { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 6px; }
.variant-table th, .variant-table td { border: 1px solid #e5e5e5; padding: 8px 10px; text-align: center; }
.variant-table th { background: #fafafa; font-weight: 600; }
.variant-table td:first-child, .variant-table th:first-child { text-align: left; }
.filters input, .filters select { padding: 6px 10px; font-size: .88rem; border-radius: 8px; }
.filters .filter-actions { gap: 8px; }
.filters .pill { padding: 6px 14px; font-size: .85rem; }
input, select, textarea {
  border: 1px solid var(--border); border-radius: 10px; padding: 9px 12px;
  font-size: 1rem; background: var(--surface); color: var(--text); font-family: inherit;
  width: 100%;
}
.filter-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px;
}
.product-card { text-decoration: none; color: var(--text); padding: 0; overflow: hidden; display: block; }
.cover { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; background: var(--bg); }
.cover.placeholder { display: flex; align-items: center; justify-content: center; font-size: 3rem; color: var(--muted); }
.card-body { padding: 12px 14px; }
.card-body h3 { margin: 0 0 4px; font-size: 1.05rem; }
.price { color: var(--primary); font-weight: 700; margin: 6px 0 0; }
.price.big { font-size: 1.4rem; }
.labor-fee { color: var(--muted); font-size: .82rem; margin: 2px 0 0; }
.price-formula { color: var(--muted); font-size: .8rem; margin: 2px 0 0; line-height: 1.5; }
.empty { text-align: center; padding: 48px 16px; }
.empty-icon { font-size: 3rem; margin: 0 0 8px; }
.back { display: inline-block; margin: 8px 0 12px; color: var(--primary); text-decoration: none; }
.detail { padding: 0; overflow: hidden; }
.gallery { background: #000; }
.main-wrap { touch-action: pan-y; user-select: none; -webkit-user-select: none; }
.main-img { width: 100%; max-height: 60vh; object-fit: contain; display: block; cursor: zoom-in; background: #111; }
.thumbs { display: flex; gap: 8px; padding: 10px; overflow-x: auto; background: var(--surface); }
.thumb { width: 64px; height: 64px; object-fit: cover; border-radius: 8px; cursor: pointer; opacity: .6; border: 2px solid transparent; }
.thumb.active { opacity: 1; border-color: var(--primary); }
.thumb-wrap { position: relative; display: inline-flex; flex-direction: column; align-items: center; gap: 4px; }
.thumb-wrap .pill { position: absolute; top: -8px; right: -8px; padding: 2px 8px; }
.cover-badge { font-size: .72rem; color: var(--primary); border: 1px solid var(--primary); border-radius: 999px; padding: 1px 10px; white-space: nowrap; }
.cover-btn { font-size: .72rem; padding: 2px 10px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; font-family: inherit; white-space: nowrap; }
.cover-btn:hover { border-color: var(--primary); color: var(--primary); }
.detail-body { padding: 20px; }
.detail-body h1 { margin: 0 0 8px; font-size: 1.5rem; }
.specs { display: grid; gap: 6px; margin: 16px 0; }
.specs > div { display: flex; gap: 12px; }
.specs dt { color: var(--muted); min-width: 4em; }
.specs dd { margin: 0; }
.desc { white-space: pre-wrap; }
.lightbox {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,.9);
  z-index: 100; align-items: center; justify-content: center; cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 95vw; max-height: 95vh; }
.searchbox { display: flex; flex-direction: column; gap: 12px; margin: 16px 0; }
.file-label { display: block; }
.error { color: var(--danger); border-color: var(--danger); }
.notice { color: var(--primary); border-color: var(--primary); }
.footer { text-align: center; color: var(--muted); font-size: .85rem; padding: 24px; }
/* 后台 */
body.admin .container { max-width: 1200px; }
.login-wrap { display: flex; justify-content: center; padding: 80px 16px; }
.login-card { width: 100%; max-width: 360px; display: flex; flex-direction: column; gap: 12px; }
.login-card h1 { margin: 0; font-size: 1.3rem; text-align: center; }
.admin-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; margin-bottom: 12px; }
.admin-head > div { display: flex; gap: 8px; flex-wrap: wrap; }
.table-wrap { padding: 0; overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.table th { color: var(--muted); font-weight: 600; white-space: nowrap; }
.table a { color: var(--primary); }
.actions { white-space: nowrap; }
.actions form { display: inline; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .8rem; }
.badge.on { background: #e7f6ec; color: var(--ok); }
.badge.off { background: #f0f1f3; color: var(--muted); }
[data-theme="dark"] .badge.on { background: #1d3a26; }
[data-theme="dark"] .badge.off { background: #3a3b3c; }
.form { display: flex; flex-direction: column; gap: 12px; }
.form label { display: flex; flex-direction: column; gap: 4px; font-size: .95rem; }
.check { flex-direction: row !important; align-items: center; gap: 8px !important; }
.check input { width: auto; }
.existing-media { border-top: 1px solid var(--border); padding-top: 12px; }