:root {
  --color-primary: #f7f5f0;
  --color-on-primary: #2b2622;
  --color-ink: #f7f5f0;
  --color-body: #c9c0ad;
  --color-mute: #aea69c;
  --color-canvas: #2b2622;
  --color-canvas-soft: #383330;
  --color-hairline: #3f3a36;
  --rounded-sm: 3px;
  --rounded-md: 4px;
  --font: Inter, system-ui, Segoe UI, PingFang SC, Microsoft YaHei, sans-serif;
  --font-serif: "Instrument Serif", Georgia, "Times New Roman", serif, system-ui, Segoe UI, PingFang SC, Microsoft YaHei;
  --font-mono: "DM Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}
* { box-sizing: border-box; }
html { background: #1c1916; }
body {
  margin: 0 auto;
  max-width: 390px;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--color-ink);
  background: var(--color-canvas);
  line-height: 1.5;
  padding-bottom: 64px;
}
a { color: var(--color-ink); text-decoration: none; }
.top {
  padding: 12px 16px; display: flex; align-items: center; justify-content: space-between;
}
.logo { color: var(--color-ink); font-weight: 500; letter-spacing: -0.3px; }
.back { font-size: 12px; color: var(--color-mute); }

.hero { padding: 24px 16px 28px; }
.hero h1 {
  font-size: 28px; font-weight: 400; letter-spacing: -1px;
  margin: 0 0 8px; line-height: 1.15;
}
.hero .serif { font-family: var(--font-serif); font-style: italic; color: #dad2c1; display: block; margin-bottom: 8px; }
.hero p { margin: 0; color: var(--color-body); font-size: 14px; }

.block { padding: 16px; }
.block h2 { font-size: 20px; font-weight: 500; letter-spacing: -0.4px; margin: 0 0 12px; }
.cell {
  display: block; background: var(--color-canvas-soft);
  border: 1px solid var(--color-hairline); border-radius: 4px;
  padding: 12px; margin-bottom: 8px; color: var(--color-ink);
}
.cell:hover { text-decoration: none; }
.cell h3 { margin: 0 0 4px; font-size: 15px; font-weight: 500; }
.cell p { margin: 0; color: var(--color-body); font-size: 13px; }
.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-mute); }
.ph {
  background: var(--color-canvas-soft); color: var(--color-mute);
  height: 120px; display: flex; align-items: center; justify-content: center;
  font-size: 13px; margin-bottom: 12px; border-radius: 4px;
  border: 1px solid var(--color-hairline); font-family: var(--font-mono);
}

form label { display: block; margin: 0 0 4px; font-size: 14px; color: var(--color-body); }
form input, form textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--color-hairline);
  border-radius: 3px; font: inherit; margin-bottom: 12px;
  background: var(--color-canvas-soft); color: var(--color-ink);
}
form button {
  width: 100%; padding: 10px; border: 0; background: var(--color-primary);
  color: var(--color-on-primary); font: inherit; font-weight: 500; border-radius: 3px;
}

.tab {
  position: fixed; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 100%; max-width: 390px;
  display: flex; background: #26211e; border-top: 1px solid var(--color-hairline);
}
.tab a { flex: 1; text-align: center; padding: 10px 0 12px; font-size: 11px; font-weight: 500; color: var(--color-mute); }
.tab a.on { color: var(--color-primary); }

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