/* ShelfRestock site core (production) — v1.2 design system subset
   用于 /pricing/、/help/ 等新版页面（旧页面保持内联样式不动）。 */
:root {
  --text-1:#303030; --text-2:#616161; --text-muted:#6d7175;
  --ink:#1a1a1a; --surface:#fff; --page:#f6f6f7;
  --border:#e3e3e3; --border-subtle:#f0f0f0; --border-input:#babfc3;
  --critical:#d72c0d; --critical-deep:#8e1f0b; --critical-bg:#fdf3f1;
  --success:#1a7f4b; --success-deep:#0c5132; --success-bg:#f2faf5; --success-badge:#e3f1df;
  --caution:#8a6100; --caution-bg:#fff3d6; --caution-border:#f0cf7a;
  --info:#2c6ecb; --info-bg:#eef3ff;
  --radius:8px; --radius-card:12px;
  --shadow:0 1px 2px rgba(0,0,0,.05);
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
* { box-sizing:border-box; margin:0; padding:0; }
body { font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
  background:#fff; color:var(--text-1); font-size:16px; line-height:1.65; -webkit-font-smoothing:antialiased; }
.wrap { max-width:1120px; margin:0 auto; padding:0 24px; }
a { color:var(--info); text-decoration:none; }
a:hover { text-decoration:underline; }
h1 { font-size:38px; line-height:1.18; font-weight:700; color:var(--ink); letter-spacing:-.4px; }
h2 { font-size:24px; line-height:1.3; font-weight:700; color:var(--ink); letter-spacing:-.2px; }
h3 { font-size:17px; font-weight:600; color:var(--ink); }
.lead { font-size:18px; color:var(--text-2); }
.sub { font-size:14px; color:var(--text-2); }
.mini { font-size:13px; color:var(--text-2); }
.note { font-size:13px; color:var(--text-muted); }

/* nav */
.nav { border-bottom:1px solid var(--border-subtle); background:#fff; }
.nav .wrap { display:flex; align-items:center; gap:26px; padding-top:16px; padding-bottom:16px; flex-wrap:wrap; }
.nav .brand { display:flex; align-items:center; gap:9px; font-weight:700; font-size:16px; color:var(--ink); text-decoration:none; }
.nav .brand .mk { width:26px; height:26px; border-radius:7px; background:#1a1a1a; color:#fff; display:flex; align-items:center; justify-content:center; font-size:11px; font-weight:700; letter-spacing:.3px; }
.nav .links { display:flex; gap:22px; margin-left:auto; align-items:center; flex-wrap:wrap; }
.nav .links a { color:var(--text-2); font-size:14px; }
.nav .links a:hover { color:var(--ink); text-decoration:none; }
.nav .links a.on { color:var(--ink); font-weight:600; }

/* sections */
.hero { padding:56px 0 36px; }
.sec { padding:36px 0; }
.sec-t { border-top:1px solid var(--border-subtle); }

/* buttons */
.btn { display:inline-flex; align-items:center; gap:8px; border-radius:10px; font-size:15px; font-weight:600;
  padding:11px 20px; border:1px solid transparent; cursor:pointer; white-space:nowrap; text-decoration:none; font-family:inherit; }
.btn:hover { text-decoration:none; }
.btn.primary { background:var(--text-1); color:#fff; }
.btn.secondary { background:#fff; color:var(--text-1); border-color:var(--border-input); }
.btn.sm { padding:7px 14px; font-size:13.5px; border-radius:8px; }
.btn[disabled] { opacity:.55; cursor:not-allowed; }
.btn-row { display:flex; gap:12px; align-items:center; flex-wrap:wrap; }

/* badges */
.badge { display:inline-flex; align-items:center; gap:4px; border-radius:999px; font-size:12px; font-weight:600; padding:2px 9px; white-space:nowrap; line-height:1.55; }
.badge.success { background:var(--success-badge); color:var(--success-deep); }
.badge.critical { background:#ffe1db; color:var(--critical-deep); }
.badge.caution { background:var(--caution-bg); color:var(--caution); }
.badge.warning { background:#ffead6; color:#8a3800; }
.badge.info { background:var(--info-bg); color:var(--info); }
.badge.neutral { background:#f0f0f0; color:#5c5f62; }

/* cards & grids */
.card { background:#fff; border:1px solid var(--border); border-radius:var(--radius-card); box-shadow:var(--shadow); padding:22px; }
.card h3 { margin-bottom:6px; }
.card.tight { padding:16px; }
.grid2 { display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.grid3 { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }

/* table */
table.tbl { width:100%; border-collapse:collapse; font-size:14px; }
.tbl th { font-size:12px; color:var(--text-2); font-weight:600; text-align:left; padding:9px 12px; border-bottom:1px solid var(--border); white-space:nowrap; background:#fafafa; }
.tbl td { padding:10px 12px; border-bottom:1px solid var(--border-subtle); vertical-align:top; }
.tbl tr:last-child td { border-bottom:none; }
.tbl .num { font-variant-numeric:tabular-nums; text-align:right; white-space:nowrap; }
.tbl th.num { text-align:right; }
.tbl .yes { color:var(--success-deep); font-weight:700; }
.tbl .no { color:#b5b5b5; }
.card .tbl { margin:6px -22px -22px; width:calc(100% + 44px); }
.card .tbl th:first-child, .card .tbl td:first-child { padding-left:22px; }
.card .tbl th:last-child, .card .tbl td:last-child { padding-right:22px; }

/* callouts */
.callout { display:flex; gap:10px; align-items:flex-start; border-radius:10px; padding:12px 16px; font-size:14px; border:1px solid transparent; }
.callout .t { flex:1; }
.callout.info { background:var(--info-bg); border-color:#cddcf7; color:#1f4a94; }
.callout.caution { background:var(--caution-bg); border-color:var(--caution-border); color:var(--caution); }
.callout.success { background:var(--success-bg); border-color:#bfe3cd; color:var(--success-deep); }

/* FAQ */
.faq .qa { padding:16px 0; border-bottom:1px solid var(--border-subtle); }
.faq .qa:last-child { border-bottom:none; }
.faq .q { font-weight:600; color:var(--ink); font-size:15px; }
.faq .a { color:var(--text-2); font-size:14px; margin-top:6px; }
.faq .a a { color:var(--info); }

/* forms */
.field { display:flex; flex-direction:column; gap:5px; margin-bottom:12px; }
.field label { font-size:13px; color:var(--text-2); font-weight:600; }
.field input { height:40px; border:1px solid var(--border-input); border-radius:9px; padding:0 12px; font-size:15px; color:var(--text-1); background:#fff; font-family:inherit; width:100%; }
.field input:focus { outline:2px solid #cddcf7; border-color:var(--info); }
.field input.err { border-color:var(--critical); }
.check { display:flex; gap:9px; align-items:flex-start; font-size:13px; color:var(--text-2); margin-bottom:14px; }
.check input { width:16px; height:16px; margin-top:3px; flex-shrink:0; accent-color:var(--text-1); }
.sub-status { font-size:13px; color:var(--text-muted); margin-top:10px; min-height:0; }
.sub-status.err { color:var(--critical); }

/* subscribe strip */
.sub-strip { border-top:1px solid var(--border-subtle); }
.sub-strip .inner { display:flex; align-items:center; gap:18px; flex-wrap:wrap; }
.sub-strip .txt { flex:1 1 280px; }
.sub-strip form { display:flex; gap:10px; align-items:flex-start; flex:2 1 420px; flex-wrap:wrap; }
.sub-strip .field { flex:1 1 240px; margin-bottom:0; }
.sub-strip .check { flex-basis:100%; margin:0; }
.sub-strip .sub-status { flex-basis:100%; margin-top:0; }

/* price cards */
.price { border:1px solid var(--border); border-radius:14px; background:#fff; box-shadow:var(--shadow); padding:24px; display:flex; flex-direction:column; gap:14px; }
.price.hl { border-color:var(--text-1); box-shadow:0 6px 24px rgba(0,0,0,.06); }
.price .plan { font-size:15px; font-weight:700; color:var(--ink); }
.price .amount { font-size:34px; font-weight:700; color:var(--ink); font-variant-numeric:tabular-nums; letter-spacing:-.5px; }
.price .amount span { font-size:15px; font-weight:500; color:var(--text-2); }
.price ul { list-style:none; display:flex; flex-direction:column; gap:8px; font-size:14px; color:var(--text-2); }
.price li::before { content:"✓"; color:var(--success-deep); font-weight:700; margin-right:8px; }
.price .foot { margin-top:auto; }

/* gnav (help) */
.gnav { display:flex; gap:8px; flex-wrap:wrap; margin:18px 0 8px; }
.gnav a { border:1px solid var(--border); border-radius:999px; padding:5px 13px; font-size:13px; color:var(--text-2); background:#fff; }
.gnav a:hover { color:var(--ink); text-decoration:none; }
.gsec { padding:22px 0 6px; border-top:1px solid var(--border-subtle); margin-top:22px; }
.gsec h2 { font-size:19px; }

/* footer */
.footer { border-top:1px solid var(--border); margin-top:56px; padding:30px 0 44px; color:var(--text-2); font-size:13px; }
.footer .cols { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:24px; margin-bottom:22px; }
.footer .cols b { display:block; color:var(--ink); font-size:13.5px; margin-bottom:8px; }
.footer .cols a { display:block; color:var(--text-2); font-size:13px; margin-bottom:6px; }
.footer .legal { border-top:1px solid var(--border-subtle); padding-top:16px; display:flex; justify-content:space-between; gap:16px; color:var(--text-muted); font-size:12.5px; flex-wrap:wrap; }

@media (max-width: 860px) {
  h1 { font-size:30px; }
  .hero { padding:36px 0 24px; }
  .grid3 { grid-template-columns:1fr; }
  .footer .cols { grid-template-columns:1fr 1fr; }
  .nav .links { gap:14px; }
  .card .tbl { overflow-x:auto; }
}
@media (max-width: 520px) {
  .footer .cols { grid-template-columns:1fr; }
}