:root {
  --color-primary: #181d26;
  --color-primary-active: #0d1218;
  --color-ink: #181d26;
  --color-body: #333840;
  --color-muted: #41454d;
  --color-hairline: #dddddd;
  --color-canvas: #ffffff;
  --color-surface-soft: #f8fafc;
  --color-surface-strong: #e0e2e6;
  --color-signature-coral: #aa2d00;
  --color-signature-forest: #0a2e0e;
  --color-signature-cream: #f5e9d4;
  --color-signature-peach: #fcab79;
  --color-signature-mint: #a8d8c4;
  --color-on-primary: #ffffff;
  --color-link: #1b61c9;
  --font-display: "Haas Groot Disp", Haas, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: Haas, system-ui, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --rounded-sm: 6px;
  --rounded-md: 10px;
  --rounded-lg: 12px;
}

* { box-sizing: border-box; }
html { background: var(--color-surface-strong); }
body {
  margin: 0 auto;
  max-width: 390px;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--color-body);
  background: var(--color-canvas);
  line-height: 1.45;
  padding-bottom: 64px;
  font-size: 14px;
}
a { color: var(--color-link); text-decoration: none; }

.top {
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  background: var(--color-canvas);
  position: sticky;
  top: 0;
}
.logo { font-family: var(--font-display); font-weight: 500; color: var(--color-ink); font-size: 18px; }
.back { font-size: 12px; color: var(--color-muted); }

.hero { padding: 32px 16px 16px; }
.hero h1 {
  font-family: var(--font-display);
  font-size: 28px; font-weight: 400; line-height: 1.2;
  color: var(--color-ink); margin: 0 0 8px;
}
.hero p { margin: 0; color: var(--color-muted); font-size: 14px; }

.block { padding: 16px; }
.block h2 {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 400; color: var(--color-ink); margin: 0 0 12px;
}

.cell {
  display: block; color: var(--color-ink);
  padding: 16px; margin-bottom: 8px;
  background: var(--color-surface-soft);
  border-radius: var(--rounded-md);
}
.cell:hover { text-decoration: none; }
.cell h3 { margin: 0 0 4px; font-size: 16px; font-weight: 500; }
.cell p { margin: 0; color: var(--color-muted); font-size: 13px; }
.cell.coral { background: var(--color-signature-coral); color: var(--color-on-primary); }
.cell.coral p { color: rgba(255,255,255,0.85); }
.cell.forest { background: var(--color-signature-forest); color: var(--color-on-primary); }
.cell.forest p { color: rgba(255,255,255,0.85); }
.cell.cream { background: var(--color-signature-cream); }
.cell.peach { background: var(--color-signature-peach); }
.cell.mint { background: var(--color-signature-mint); }

.row {
  display: flex; justify-content: space-between; gap: 8px;
  padding: 12px 0; border-bottom: 1px solid var(--color-hairline); font-size: 14px;
}
.row:last-child { border-bottom: 0; }
.row span { color: var(--color-muted); }

.ph {
  background: var(--color-surface-strong); color: var(--color-muted);
  height: 120px; display: flex; align-items: center; justify-content: center;
  font-size: 13px; margin-bottom: 12px; border-radius: var(--rounded-md);
}

form label { display: block; margin: 0 0 4px; font-size: 14px; }
form input, form textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--color-hairline);
  border-radius: var(--rounded-sm); font: inherit; margin-bottom: 12px;
}
form button {
  width: 100%; padding: 16px 24px; border: 0;
  background: var(--color-primary); color: var(--color-on-primary);
  font: inherit; font-size: 16px; font-weight: 500; border-radius: var(--rounded-lg);
}

.tab {
  position: fixed; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 100%; max-width: 390px;
  display: flex; background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
}
.tab a { flex: 1; text-align: center; padding: 12px 0; font-size: 12px; color: var(--color-muted); }
.tab a.on { color: var(--color-ink); font-weight: 500; }

.ph { overflow: hidden; }
.ph img { width: 100%; height: 100%; object-fit: cover; display: block; }