/* ============ 三夜 · 档案纸风格 ============ */
:root {
  --paper: #f4efe4;
  --paper-deep: #ece5d3;
  --ink: #211d17;
  --ink-soft: #56503f;
  --line: #c9bfa4;
  --seal: #a83226;          /* 印章红 */
  --fable: #2b2620;
  --sol: #315a9e;
  --opus: #a2761b;
  --card: #faf6ec;
  --mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", STSong, serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.85;
  font-size: 17px;
}

/* 纸纹 */
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image: radial-gradient(rgba(0,0,0,.028) 1px, transparent 1px);
  background-size: 5px 5px;
}

a { color: var(--seal); text-decoration: none; border-bottom: 1px solid rgba(168,50,38,.35); }
a:hover { border-bottom-color: var(--seal); }
mark { background: none; color: var(--seal); font-weight: 700; }
q { quotes: "「" "」"; color: var(--ink); }
h2, h3, h4 { line-height: 1.4; }

/* ---------- 顶栏 ---------- */
.topnav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 22px; background: rgba(244,239,228,.92);
  border-bottom: 1px solid var(--line); backdrop-filter: blur(6px);
}
.nav-title { font-weight: 900; letter-spacing: .35em; }
.nav-links a { border: none; color: var(--ink-soft); margin-left: 16px; font-size: 14px; }
.nav-links a:hover { color: var(--seal); }

/* ---------- Hero ---------- */
.hero { max-width: 980px; margin: 0 auto; padding: 72px 24px 40px; text-align: center; position: relative; z-index: 1; }
.hero-kicker { color: var(--ink-soft); letter-spacing: .12em; font-size: 14px; }
.hero h1 { font-size: 96px; font-weight: 900; letter-spacing: .18em; margin: 12px 0 6px; }
.hero-sub { font-size: 21px; color: var(--ink-soft); margin-bottom: 40px; }

.cast { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin: 0 0 36px; }
.cast figure { background: var(--card); border: 1px solid var(--line); padding: 10px 10px 14px; }
.cast img { width: 100%; display: block; border: 1px solid var(--line); }
.cast figcaption { display: flex; flex-direction: column; margin-top: 10px; gap: 1px; }
.cast strong { font-size: 16px; }
.cast span { color: var(--seal); font-size: 13px; }
.cast em { color: var(--ink-soft); font-size: 12px; font-style: normal; }

.truth-box, .how-to-read {
  text-align: left; background: var(--card); border: 1px solid var(--line);
  border-left: 4px solid var(--seal); padding: 18px 22px; margin: 14px 0; font-size: 15.5px;
}
.how-to-read { border-left-color: var(--ink-soft); }
.seal-chip.demo {
  display: inline-block; background: var(--seal); color: #fff; border-radius: 999px;
  font-size: 12.5px; padding: 1px 10px; margin: 0 2px;
}

/* ---------- 幕 ---------- */
.act { max-width: 980px; margin: 0 auto; padding: 64px 24px 48px; border-top: 1px dashed var(--line); position: relative; z-index: 1; }
.act-head { margin-bottom: 28px; }
.act-no { color: var(--seal); letter-spacing: .5em; font-size: 14px; font-weight: 700; }
.act h2 { font-size: 44px; font-weight: 900; letter-spacing: .1em; margin: 6px 0 8px; }
.act-logline { color: var(--ink-soft); max-width: 46em; }
.act h3 { margin: 40px 0 12px; font-size: 22px; border-bottom: 1px solid var(--line); padding-bottom: 8px; }

.rules-strip {
  font-size: 13.5px; color: var(--ink-soft); background: var(--paper-deep);
  border: 1px solid var(--line); padding: 8px 14px; letter-spacing: .02em;
}

/* 开榜 */
.seal-btn {
  margin-top: 14px; cursor: pointer; font-family: var(--serif); font-size: 15px;
  background: var(--seal); color: #fff; border: none; border-radius: 999px;
  padding: 8px 22px; letter-spacing: .08em; box-shadow: 0 2px 0 rgba(0,0,0,.18);
}
.seal-btn:hover { filter: brightness(1.08); }
.act.revealed .seal-btn { background: var(--ink-soft); }
.act.revealed .seal-btn::after { content: " ✓ 已开榜"; }

.monologue {
  display: none; margin-top: 8px; padding: 10px 14px; font-size: 15px;
  background: #f1e6cf; border-left: 3px solid var(--opus); color: #4a3c19;
}
.monologue::before { content: "内心独白 · "; font-size: 12px; color: var(--opus); letter-spacing: .1em; }
.act:not(.revealed) .monologue-locked-hint { display: block; }
.act.revealed .monologue { display: block; animation: rise .5s ease; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.monologue.standalone { margin: 18px 0; }

/* 公告 */
.announce {
  margin: 40px 0; padding: 44px 20px; text-align: center;
  background: #17140f; color: #f4efe4; letter-spacing: .2em; font-size: 15px;
}
.announce strong { display: block; font-size: 27px; margin-top: 10px; letter-spacing: .3em; }
.announce-sub { display: block; margin-top: 14px; font-size: 14px; letter-spacing: .05em; color: #cdc4ad; }

/* 牌桌卡 */
.table-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.table-grid.three { grid-template-columns: repeat(3, 1fr); }
.match-card { background: var(--card); border: 1px solid var(--line); padding: 16px 16px 12px; }
.match-card h4 { font-size: 15px; letter-spacing: .05em; color: var(--ink-soft); margin-bottom: 12px; }
.play { margin-bottom: 12px; font-size: 15px; }
.play q { display: block; margin-top: 2px; color: var(--ink-soft); }
.play .who { font-weight: 800; margin-right: 8px; }
.who.fable { color: var(--fable); } .who.sol { color: var(--sol); } .who.opus { color: var(--opus); }
.action { display: inline-block; font-size: 13px; padding: 0 10px; border-radius: 3px; color: #fff; letter-spacing: .1em; }
.action.coop { background: #4a6b46; }
.action.defect { background: var(--seal); }
.score-line { font-size: 14px; color: var(--ink-soft); border-top: 1px dashed var(--line); padding-top: 8px; }

/* 记分牌 */
.scoreboard { display: flex; gap: 14px; margin: 30px 0 10px; flex-wrap: wrap; }
.score {
  flex: 1; min-width: 140px; background: var(--card); border: 1px solid var(--line);
  padding: 14px 18px; display: flex; flex-direction: column;
}
.score .name { font-size: 14px; color: var(--ink-soft); letter-spacing: .15em; }
.score .pts { font-family: var(--mono); font-size: 40px; font-weight: 700; }
.score .tag { font-size: 13px; color: var(--seal); }
.scoreboard.tie { position: relative; }
.tie-line { width: 100%; text-align: center; color: var(--ink-soft); font-size: 14.5px; margin-top: 6px; }

/* 台账 */
.ledger { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14.5px; background: var(--card); }
.ledger th, .ledger td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.ledger th { background: var(--paper-deep); font-size: 13px; letter-spacing: .05em; }
.ledger .mono { font-family: var(--mono); white-space: nowrap; }
.ledger td.flip { background: #f6dcd6; }
.ledger td.flip .intent { text-decoration: line-through; opacity: 0; }
.act.revealed .ledger td.flip .intent { opacity: 1; text-decoration: none; font-weight: 700; color: var(--seal); }
.act.revealed .ledger td.flip .intent::after { content: ""; }
.table-note { font-size: 13.5px; color: var(--ink-soft); }
.flip-demo { background: #f6dcd6; padding: 0 6px; border: 1px solid var(--line); font-size: 12.5px; }

/* 对峙 */
.confront { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 8px 0 16px; }
.say { background: var(--card); border: 1px solid var(--line); padding: 14px 16px; font-size: 15px; }
.say b { display: block; font-size: 13px; letter-spacing: .1em; color: var(--ink-soft); margin-bottom: 6px; }
.say.fable { border-top: 3px solid var(--fable); }
.say.sol { border-top: 3px solid var(--sol); }
.say.opus { border-top: 3px solid var(--opus); }

/* 名场面 */
.scene-callout {
  margin: 30px 0; background: #17140f; color: #efe9da; padding: 26px 28px;
}
.scene-callout q { color: #efe9da; }
.scene-callout .monologue { background: rgba(255,255,255,.08); color: #e8d9ae; border-left-color: var(--opus); }
.scene-tag { display: inline-block; background: var(--seal); color: #fff; font-size: 12.5px; padding: 2px 12px; letter-spacing: .15em; margin-bottom: 12px; }
.scene-callout.gold { background: #241d0e; }
.scene-callout .play { margin: 12px 0; }
.scene-callout .score-line { color: #b7ac91; border-top-color: rgba(255,255,255,.15); }

/* 信封 */
.envelopes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 18px 0; }
.envelope {
  cursor: pointer; border: 1px solid var(--line); background: var(--paper-deep);
  font-family: var(--serif); font-size: 15px; padding: 0; min-height: 130px; position: relative; overflow: hidden;
}
.env-face {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: var(--paper-deep); transition: transform .45s ease; letter-spacing: .1em;
}
.env-face::before { content: "✉ "; color: var(--seal); margin-right: 6px; }
.env-content { display: flex; flex-direction: column; gap: 6px; align-items: center; justify-content: center; padding: 18px; min-height: 130px; }
.env-content b { font-size: 26px; }
.env-content i { font-size: 13.5px; color: var(--ink-soft); font-style: normal; line-height: 1.7; }
.envelope.open .env-face { transform: translateY(-100%); }

/* 杂项 */
.card-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 14px 0; }
.card-row.three { grid-template-columns: repeat(3, 1fr); }
.stat-card { background: var(--card); border: 1px solid var(--line); padding: 18px 20px; font-size: 15.5px; }
.stat-card h4 { font-size: 15px; color: var(--ink-soft); margin-bottom: 8px; letter-spacing: .04em; }
.big-nums { font-family: var(--mono); font-size: 30px; font-weight: 700; margin-bottom: 6px; }
.big-nums .dim { font-size: 14px; color: var(--ink-soft); font-weight: 400; }

.note-card {
  margin: 26px 0; padding: 14px 18px; font-size: 14.5px;
  background: var(--paper-deep); border: 1px dashed var(--ink-soft); color: var(--ink-soft);
}
.databox {
  margin: 20px 0; padding: 12px 16px; font-family: var(--mono); font-size: 13.5px;
  background: var(--card); border: 1px solid var(--line); color: var(--ink-soft);
}
.cliffhanger { margin-top: 30px; text-align: center; letter-spacing: .1em; color: var(--ink-soft); }

/* 终幕 */
.findings ol { padding-left: 1.4em; display: flex; flex-direction: column; gap: 12px; margin: 10px 0 20px; }
.closing { text-align: center; font-size: 24px; line-height: 2; margin: 56px 0 20px; letter-spacing: .06em; }
.ledger.arc td, .ledger.arc th { text-align: center; }

/* 档案室 */
.archive { padding-bottom: 80px; }
details.bias { background: var(--card); border: 1px solid var(--line); margin: 10px 0; padding: 12px 18px; font-size: 15px; }
details.bias summary { cursor: pointer; font-weight: 700; letter-spacing: .02em; }
details.bias[open] summary { color: var(--seal); margin-bottom: 8px; }
details.bias ul { padding-left: 1.4em; margin: 8px 0; }
.facts { padding-left: 1.4em; font-size: 15px; display: flex; flex-direction: column; gap: 6px; margin: 8px 0 20px; }
.facts code { font-family: var(--mono); font-size: 13px; background: var(--paper-deep); padding: 1px 6px; }
.repro { font-size: 15px; color: var(--ink-soft); }

footer { border-top: 1px solid var(--line); padding: 26px; text-align: center; font-size: 13px; color: var(--ink-soft); }

/* 响应式 */
@media (max-width: 860px) {
  .hero h1 { font-size: 60px; }
  .cast { grid-template-columns: repeat(2, 1fr); }
  .table-grid, .table-grid.three, .confront, .envelopes { grid-template-columns: 1fr; }
  .card-row, .card-row.three { grid-template-columns: 1fr; }
  .nav-links a { margin-left: 10px; font-size: 12.5px; }
  .ledger { display: block; overflow-x: auto; }
}