:root {
  --lacquer: #140e09;
  --panel: #1f160f;
  --ink: #eadcc4;
  --muted: #a89478;
  --cinnabar: #c4452b;
  --cinnabar-deep: #8b2618;
  --gold: #d4b483;
  --line: rgba(212, 180, 131, 0.28);
  --good: #7ea36a;
  --bad: #c4452b;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(196, 69, 43, 0.16), transparent 50%),
    radial-gradient(900px 400px at 100% 0%, rgba(212, 180, 131, 0.1), transparent 45%),
    var(--lacquer);
  color: var(--ink);
  font-family: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", KaiTi, serif;
}
body { min-height: 100vh; }
.hidden { display: none !important; }
#login-mask {
  position: fixed; inset: 0; z-index: 20;
  background: rgba(10, 6, 4, 0.82);
  display: grid; place-items: center;
}
.seal-card {
  width: min(360px, 92vw);
  padding: 2rem 1.6rem 1.4rem;
  background: var(--panel);
  border: 1px solid var(--gold);
  box-shadow: 0 0 0 8px rgba(196, 69, 43, 0.12);
}
.seal-card h1 { margin: 0.2rem 0 0.6rem; letter-spacing: 0.4em; }
.eyebrow { letter-spacing: 0.35em; color: var(--gold); font-size: 0.75rem; margin: 0; }
.hint, .err { color: var(--muted); font-size: 0.85rem; }
.err { color: var(--cinnabar); }
input, select, textarea, button {
  font: inherit; color: var(--ink);
  background: #2a1f16;
  border: 1px solid var(--line);
}
input, select, textarea { padding: 0.45rem 0.55rem; width: 100%; }
button {
  background: var(--cinnabar-deep);
  border-color: var(--cinnabar);
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  letter-spacing: 0.2em;
}
button:hover { background: var(--cinnabar); }
.top {
  display: flex; justify-content: space-between; gap: 1rem;
  align-items: flex-end; flex-wrap: wrap;
  padding: 1.1rem 1.4rem 0.8rem;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; gap: 0.8rem; align-items: center; }
.brand h1 { margin: 0; font-size: 1.6rem; letter-spacing: 0.28em; }
.brand p { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.82rem; }
.seal {
  width: 48px; height: 48px; display: grid; place-items: center;
  border: 2px solid var(--cinnabar); color: var(--cinnabar);
  font-size: 1.4rem; transform: rotate(-8deg);
}
.toolbar { display: flex; flex-wrap: wrap; gap: 0.55rem; align-items: end; }
.toolbar label { font-size: 0.78rem; color: var(--muted); }
.toolbar input, .toolbar select { width: auto; min-width: 140px; }
.check { display: flex; gap: 0.3rem; align-items: center; color: var(--ink); }
.check input { width: auto; }
main {
  display: grid;
  grid-template-columns: minmax(320px, 42%) 1fr;
  gap: 0;
  min-height: calc(100vh - 92px);
}
.board-wrap {
  padding: 1rem 1.2rem 1.4rem;
  border-right: 1px solid var(--line);
}
.ju-line {
  color: var(--gold);
  letter-spacing: 0.12em;
  margin-bottom: 0.8rem;
  min-height: 1.4em;
}
.luoshu {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  aspect-ratio: 1;
  max-width: 520px;
}
.cell {
  background: #241910;
  border: 1px solid var(--line);
  padding: 0.35rem 0.4rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 0;
}
.cell.center { background: #2b140f; }
.cell .p-name { color: var(--gold); font-size: 0.75rem; letter-spacing: 0.15em; }
.cell .gan { font-size: 1.05rem; }
.cell .gan span { color: var(--muted); font-size: 0.85rem; }
.cell .sms { font-size: 0.78rem; color: #d7c7ab; display: flex; justify-content: space-between; gap: 0.2rem; }
.cell .tags { font-size: 0.68rem; color: var(--cinnabar); min-height: 1em; }
.cell.kong { opacity: 0.72; }
.cell.ma { box-shadow: inset 0 0 0 1px var(--gold); }
.meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.25rem 1rem;
  margin: 0.9rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.meta div span { color: var(--ink); }
.chat-wrap {
  display: flex; flex-direction: column;
  min-height: calc(100vh - 92px);
}
.messages {
  flex: 1;
  overflow: auto;
  padding: 1rem 1.2rem;
  display: flex; flex-direction: column; gap: 0.85rem;
}
.bubble {
  max-width: 92%;
  padding: 0.7rem 0.85rem;
  line-height: 1.65;
  white-space: pre-wrap;
}
.bubble.user {
  align-self: flex-end;
  background: #3a2418;
  border: 1px solid var(--line);
}
.bubble.bot {
  align-self: flex-start;
  background: #1a1612;
  border-left: 3px solid var(--cinnabar);
}
#ask-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  padding: 0.8rem 1.1rem 1.1rem;
  border-top: 1px solid var(--line);
}
#ask-form textarea { resize: vertical; min-height: 72px; }
@media (max-width: 900px) {
  main { grid-template-columns: 1fr; }
  .board-wrap { border-right: 0; border-bottom: 1px solid var(--line); }
  .luoshu { max-width: 100%; }
  .chat-wrap { min-height: 50vh; }
}