:root {
  --bg: #f6f4ef;
  --ink: #1c1b19;
  --muted: #5c574f;
  --line: #d9d2c5;
  --warn: #8a5a00;
  --warn-bg: #fff4d6;
  --danger: #8b1e1e;
  --unknown: #9a3412;
  --unknown-bg: #ffedd5;
  --ok: #166534;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Source Han Sans SC", "PingFang SC", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}
.banner {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: #efeae0;
}
.banner h1 { margin: 0 0 0.5rem; font-size: 1.35rem; }
.disclaimer {
  margin: 0;
  color: var(--danger);
  font-weight: 600;
}
main { max-width: 720px; margin: 0 auto; padding: 1.25rem 1.5rem 3rem; }
.field { display: block; margin-bottom: 1rem; font-size: 0.95rem; color: var(--muted); }
input, textarea {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  background: #fff;
}
button {
  background: var(--ink);
  color: #fff;
  border: 0;
  border-radius: 6px;
  padding: 0.65rem 1.2rem;
  font: inherit;
  cursor: pointer;
}
button:disabled { opacity: 0.55; cursor: wait; }
.status { color: var(--muted); }
.warnings {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: var(--warn-bg);
  color: var(--warn);
  border-left: 4px solid var(--warn);
}
.answer {
  margin-top: 1rem;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  white-space: pre-wrap;
}
.citations { margin-top: 1.5rem; }
.citations ul { list-style: none; padding: 0; margin: 0; }
.citations li {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  margin-bottom: 0.75rem;
}
.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  margin-right: 0.35rem;
}
.badge-未知, .badge-未核定 { background: var(--unknown-bg); color: var(--unknown); }
.badge-现行 { background: #dcfce7; color: var(--ok); }
.badge-废止 { background: #fee2e2; color: var(--danger); }
.badge-待实施 { background: #e0e7ff; color: #3730a3; }
.badge-弱 { background: #e5e7eb; color: #374151; }
.meta { color: var(--muted); font-size: 0.85rem; margin: 0.35rem 0; }
.excerpt { margin: 0; font-size: 0.9rem; }