/* 一問一答ページ（/ichimonitto/{時代}/）。共通の部品（レイアウト・ボタン・バナー・右カラム・比較表）は content.css、ヘッダー・フッターは doc.css、色と寸法は tokens.css。
   答えは <details> の中（HTML にテキストで入っていて、検索エンジンにも読める）。
   規則は docs/DESIGN.md（カードの左端に色線を付けない・強調は墨の 2px 線・グラデーションなし・絵文字なし）。 */
html.fc-lock, html.fc-lock body { overflow: hidden; }

.ichimonitto h1 { margin-bottom: 12px; }
.ichimonitto .lead { font-size: 15px; line-height: 2; color: var(--ink-2); }
.era-eyecatch { margin: 4px 0 18px; aspect-ratio: 16 / 9; overflow: hidden; border: 1px solid var(--line-2); border-radius: 14px; background: var(--paper-2); }
.era-eyecatch img { display: block; width: 100%; height: 100%; object-fit: cover; }

/* ---- フラッシュカードクイズの起動 ---- */
.fc-launch { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 18px; margin: 0 0 22px;
  padding: 16px 20px; border-radius: var(--r-lg); background: var(--paper-texture), var(--card);
  border: 2px solid color-mix(in srgb, var(--river) 55%, var(--paper-1)); }
.fc-launch-art { position: relative; width: 64px; height: 56px; }
.fc-launch-art .c { position: absolute; top: 4px; width: 44px; height: 50px; display: grid; place-items: center; border-radius: 8px;
  font-size: 20px; font-weight: 900; box-shadow: var(--shadow-1); }
.fc-launch-art .back { left: 18px; transform: rotate(10deg); background: var(--moss-pale); color: var(--moss); border: 2px solid color-mix(in srgb, var(--moss) 45%, var(--paper-1)); }
.fc-launch-art .front { left: 0; transform: rotate(-6deg); background: var(--paper-0); color: var(--river-deep); border: 2px solid var(--line-ink); }
.fc-launch-title { margin: 0 0 2px; font-size: 17px; font-weight: 900; }
.fc-launch-copy p { margin: 0; font-size: 13.5px; line-height: 1.8; color: var(--ink-2); }
.fc-launch-copy .fc-launch-title { color: var(--ink-1); font-size: 17px; }
.fc-launch .fc-progress-note { margin-top: 4px; font-size: 12.5px; color: var(--moss); font-weight: 700; }
@media (max-width: 640px) {
  .fc-launch { grid-template-columns: auto minmax(0, 1fr); padding: 14px 16px; gap: 12px 14px; }
  .fc-launch .btn { grid-column: 1 / -1; width: 100%; }
}

/* ---- もくじ ---- */
.toc { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin: 0 0 8px;
  padding: 12px 14px; border-radius: var(--r-md); background: var(--paper-2); }
.toc ol { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 0; padding: 0; list-style: none; }
.toc a { font-weight: 700; color: var(--ink-1); text-decoration: none; }
.toc a:hover { color: var(--river-deep); }
.toc span { margin-left: 4px; font-size: 13px; color: var(--ink-3); }
.toc [data-toggle-all] { margin-left: auto; }

/* ---- レーン ---- */
.lane { scroll-margin-top: 72px; }
.lane h2 { display: flex; align-items: baseline; gap: 8px; margin: 38px 0 4px; padding-bottom: 6px; font-size: 21px; font-weight: 900;
  border-bottom: 2px solid var(--lane-color, var(--line-ink)); }
.lane h2::before { content: ''; flex: none; width: 10px; height: 10px; border-radius: 2px; background: var(--lane-color); transform: translateY(-2px); }
.lane h2 .cnt { font-size: 13px; font-weight: 500; color: var(--ink-3); }
.lane-politics { --lane-color: var(--lane-politics); }
.lane-diplomacy { --lane-color: var(--lane-diplomacy); }
.lane-culture { --lane-color: var(--lane-culture); }
.lane h3 { margin: 24px 0 10px; font-size: 15px; font-weight: 900; color: var(--ink-2); }

/* ---- 押さえておきたいポイント（見出し＋1〜2文＋図解） ---- */
.points { margin: 16px 0 8px; border-radius: var(--r-lg); background: var(--ochre-pale);
  border: 1px solid color-mix(in srgb, var(--ochre) 40%, var(--paper-1)); }
.points summary { display: flex; align-items: center; gap: 10px; min-height: 52px; padding: 10px 16px; cursor: pointer; list-style: none;
  border-radius: var(--r-lg); transition: background var(--dur-fast); }
.points summary::-webkit-details-marker { display: none; }
.points summary:hover { background: color-mix(in srgb, var(--ochre) 12%, var(--ochre-pale)); }
.points summary:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.points-title { flex: 0 1 auto; min-width: 0; font-size: 15px; font-weight: 900; line-height: 1.6; }
.points-count { flex: none; white-space: nowrap; padding: 2px 8px; border-radius: var(--r-xs); background: var(--paper-0); font-size: 12px; font-weight: 700; color: var(--ink-3); }
.points-toggle { flex: none; margin-left: auto; font-size: 13px; font-weight: 700; color: var(--river-deep); white-space: nowrap; }
.points-toggle::before { content: '開く'; }
.points-toggle::after { content: ''; display: inline-block; width: 7px; height: 7px; margin: 0 2px 3px 8px;
  border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(45deg); transition: transform var(--dur-fast); }
.points[open] .points-toggle::before { content: 'とじる'; }
.points[open] .points-toggle::after { transform: rotate(-135deg); margin-bottom: -2px; }
.points .point-list { padding: 0 16px 16px; }
.point-list { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; }   /* 表の最小幅でカードが画面からはみ出さないように */
.point { scroll-margin-top: 80px; padding: 14px 16px 15px; border-radius: 12px; background: var(--paper-texture), var(--card); border: 1px solid var(--line-1); }
.point-title { display: flex; align-items: baseline; gap: 10px; margin: 0; font-size: 16px; font-weight: 900; line-height: 1.8; }
.point-title .tt { flex: 1; min-width: 0; }   /* ルビ付きの語が flex の別アイテムに割れて上下にずれないよう、見出しの文字は1つの箱に入れる */
.point-title .no { flex: none; width: 24px; height: 24px; position: relative; top: var(--badge-nudge); display: grid; place-items: center; border-radius: 50%;
  background: var(--ochre); color: var(--paper-0); font-size: 12.5px; font-weight: 900; line-height: 1; font-variant-numeric: tabular-nums; }
.point-text { margin: 4px 0 0 34px; font-size: 14.5px; line-height: 2; color: var(--ink-2); }
.fig { margin: 10px 0 0 34px; }
@media (max-width: 560px) { .point-text, .fig { margin-left: 0; } }

/* 年を並べる */
.fig-years { display: grid; grid-template-columns: repeat(auto-fit, minmax(9em, 1fr)); gap: 8px; padding: 0; list-style: none; }   /* 年が4つある図はスマホで2列に折り返す */
.fig-years li { position: relative; padding: 10px 12px; border-radius: var(--r-md); background: var(--paper-2); }
.fig-years .y { display: block; font-size: 22px; font-weight: 900; color: var(--river-deep); font-variant-numeric: tabular-nums; line-height: 1.3; }
.fig-years .l { display: block; font-size: 13.5px; font-weight: 700; line-height: 1.9; }

/* 流れ（→でつなぐ。最後の結果だけ枠で強める。スマホは縦に積んで↓） */
.fig-flow { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 0; padding: 0; list-style: none; }
.fig-flow li { position: relative; margin-right: 26px; padding: 5px 11px; border-radius: var(--r-md); background: var(--paper-2);
  font-size: 13.5px; font-weight: 700; line-height: 1.8; }
.fig-flow li:last-child { margin-right: 0; background: var(--paper-0); box-shadow: inset 0 0 0 2px var(--ochre); }
.fig-flow li:not(:last-child)::after { content: '→'; position: absolute; right: -20px; top: 50%; transform: translateY(-50%);
  color: var(--ochre); font-weight: 900; }
@media (max-width: 560px) {
  .fig-flow { flex-direction: column; align-items: stretch; gap: 0; }
  .fig-flow li { margin: 0 0 22px; }
  .fig-flow li:last-child { margin-bottom: 0; }
  .fig-flow li:not(:last-child)::after { content: '↓'; right: auto; left: 16px; top: auto; bottom: -21px; transform: none; }
}

/* 組み合わせ */
.fig-pairs { display: grid; gap: 6px; margin-bottom: 0; }
.fig-pairs > div { display: grid; grid-template-columns: minmax(8.5em, auto) minmax(0, 1fr); gap: 10px; align-items: baseline;
  padding: 7px 12px; border-radius: var(--r-md); background: var(--paper-2); }
.fig-pairs dt { font-size: 14px; font-weight: 900; line-height: 1.8; }
.fig-pairs dd { margin: 0; font-size: 14px; font-weight: 700; line-height: 1.8; color: var(--ink-2); }
.fig-pairs dd::before { content: '→ '; color: var(--ochre); font-weight: 900; }
@media (max-width: 560px) { .fig-pairs > div { grid-template-columns: 1fr; gap: 0; } }

/* 2者の関係（御恩と奉公） */
.fig-relation { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 10px; }
.fig-relation .who { display: grid; place-items: center; text-align: center; min-width: 5.2em; min-height: 64px; padding: 6px 12px; border-radius: 10px;
  border: 2px solid var(--line-ink); background: var(--paper-0); font-size: 16px; font-weight: 900; }
.fig-relation .arrows { display: grid; gap: 8px; }
.fig-relation .arrows span { position: relative; padding: 6px 12px; border-radius: var(--r-md); font-size: 13px; font-weight: 700; line-height: 1.8; text-align: center; }
.fig-relation .to-right { background: var(--moss-pale); color: var(--ink-1); }
.fig-relation .to-left { background: var(--river-pale); color: var(--ink-1); }
.fig-relation .to-right::after { content: ' →'; color: var(--moss); font-weight: 900; }
.fig-relation .to-left::before { content: '← '; color: var(--river-deep); font-weight: 900; }
@media (max-width: 480px) { .fig-relation .who { min-width: 3.6em; padding: 6px 8px; font-size: 15px; } }

/* ---- 問題（一問一答） ---- */
.qlist { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; }   /* 長い語を含む問題でカードが画面からはみ出さないように */
.qa { scroll-margin-top: 72px; }
.qa details { border-radius: 12px; border: 1px solid var(--line-1); background: var(--card); box-shadow: var(--shadow-1); }
.qa details[open] { border: 2px solid var(--line-ink); margin: -1px; }
.qa summary { display: flex; align-items: baseline; gap: 12px; min-height: 52px; padding: 12px 14px; cursor: pointer; list-style: none; border-radius: 11px;
  border-radius: 12px; transition: background var(--dur-fast); }
.qa summary::-webkit-details-marker { display: none; }
.qa details[open] summary { border-radius: 10px; }   /* ホバーの背景を枠の角丸に合わせる（開くと枠が 2px） */
.qa summary:hover { background: var(--paper-0); }
.qa summary:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.qn { flex: none; min-width: 30px; height: 26px; position: relative; top: var(--badge-nudge); padding: 0 6px; display: grid; place-items: center; border-radius: var(--r-sm);
  background: var(--paper-2); color: var(--ink-3); font-size: 12px; font-weight: 700; font-variant-numeric: tabular-nums; line-height: 1; }
.qt { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.ql { display: block; margin-bottom: 2px; font-size: 13px; font-weight: 700; color: var(--ink-3); line-height: 1.9; }
.qb { display: block; font-size: 15.5px; font-weight: 700; line-height: 2; }
.qm { flex: none; align-self: center; padding: 5px 12px; border-radius: var(--r-pill); border: 2px solid var(--line-2);
  font-size: 13px; font-weight: 700; color: var(--river-deep); line-height: 1.2; white-space: nowrap; }
.qa details[open] .qm { border-color: transparent; color: var(--ink-3); }
.qa details[open] .qm::after { content: 'をとじる'; }
.ans { padding: 0 14px 14px 56px; overflow-wrap: anywhere; }
.ans .a { margin: 0; padding: 8px 12px; border-radius: var(--r-md); background: var(--moss-pale); font-size: 16.5px; font-weight: 900; line-height: 2; }
.ans .a::before { content: '答え'; margin-right: 10px; font-size: 12px; font-weight: 700; color: var(--moss); }
.ans .ex { margin: 8px 0 0; font-size: 14px; line-height: 2; color: var(--ink-2); }
.ans .tl { display: inline-block; margin-top: 6px; font-size: 13px; font-weight: 700; color: var(--river-deep); text-decoration: none; }
.ans .tl::after { content: ' ›'; }
.ans .tl:hover { color: var(--river-deep); text-decoration: underline; }
.known-btn { display: inline-flex; align-items: center; min-height: 36px; margin: 10px 0 0 12px; padding: 0 14px; border-radius: var(--r-pill);
  border: 2px solid var(--line-2); background: var(--card); font: inherit; font-size: 13px; font-weight: 700; color: var(--ink-2); cursor: pointer; }
.known-btn:hover { background: var(--paper-2); }
.known-btn[aria-pressed="true"] { border-color: var(--moss); background: var(--moss-pale); color: var(--moss); }
.qa.known .qn { background: var(--moss-pale); color: var(--moss); }

/* ---- ハブ（/ichimonitto/） ---- */
.howto { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 0 0 30px; padding: 0; list-style: none; counter-reset: none; }
.howto li { display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border-radius: 12px; background: var(--card); border: 1px solid var(--line-1); }
.howto .no { width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; background: var(--river); color: var(--paper-0);
  font-size: 12.5px; font-weight: 900; line-height: 1; }
.howto b { font-size: 15px; font-weight: 900; }
.howto li > span:last-child { font-size: 13px; line-height: 1.85; color: var(--ink-2); }
@media (max-width: 640px) { .howto { grid-template-columns: 1fr; } }
.eras h2 { margin: 0 0 14px; font-size: 21px; font-weight: 900; }
.era-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 0; padding: 0; list-style: none; }
@media (max-width: 640px) { .era-grid { grid-template-columns: 1fr; } }
.era-card { display: flex; flex-direction: column; padding: 0 0 16px; border-radius: 16px; overflow: hidden; background: var(--paper-texture), var(--card);
  border: 1px solid color-mix(in srgb, var(--c) 45%, var(--paper-1)); box-shadow: var(--shadow-1); }
.era-card-head { display: flex; flex-direction: column; gap: 2px; padding: 12px 16px; background: color-mix(in srgb, var(--c) 22%, var(--paper-1)); }
.era-card h3 { margin: 0; font-size: 19px; font-weight: 900; line-height: 1.45; }
.era-card h3 a { color: color-mix(in srgb, var(--c) 72%, var(--ink-1)); text-decoration: none; }
.era-card h3 a:hover { color: var(--ink-1); text-decoration: underline; }
.era-range { margin: 0; font-size: 12.5px; font-weight: 700; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.era-thumb { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--paper-2); }
.era-thumb img { display: block; width: 100%; height: 100%; object-fit: cover; }
.era-theme { margin: 12px 16px 0; font-size: 14px; font-weight: 700; line-height: 1.9; }
.era-count { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 10px; margin: 6px 16px 0; font-size: 13px; color: var(--ink-2); }
.era-count b { font-size: 22px; font-weight: 900; color: var(--river-deep); font-variant-numeric: tabular-nums; margin-right: -8px; }
.era-count span { font-size: 12px; color: var(--ink-3); }
.era-known { margin: 6px 16px 0; font-size: 12.5px; font-weight: 700; color: var(--moss); }
.era-points-title { margin: 14px 16px 6px; font-size: 12.5px; font-weight: 900; color: var(--ink-2); }
.era-points { display: grid; gap: 6px; margin: 0 16px 14px; padding: 0; list-style: none; flex: 1; align-content: start; }
.era-points a { display: flex; align-items: baseline; gap: 8px; padding: 8px 10px; border-radius: 10px; background: var(--paper-1);
  border: 1px solid var(--line-1); color: var(--ink-1); text-decoration: none; transition: background var(--dur-fast), border-color var(--dur-fast); }
.era-points a:hover { background: var(--paper-0); border-color: var(--line-2); color: var(--ink-1); }
.era-points a::after { content: '›'; margin-left: auto; align-self: center; color: var(--ink-3); font-weight: 700; }
.era-points .pt { min-width: 0; font-size: 13.5px; font-weight: 700; line-height: 1.9; }
.lane-tag { flex: none; position: relative; top: var(--badge-nudge); padding: 1px 7px; border-radius: var(--r-xs); font-size: 11px; font-weight: 700; line-height: 1.6; white-space: nowrap;
  color: color-mix(in srgb, var(--lane-color) 80%, var(--ink-1)); background: color-mix(in srgb, var(--lane-color) 12%, var(--paper-0)); }
.era-card > .btn { margin: 0 16px; width: auto; }
.hub .next { margin-top: 40px; }
.era-link.hub { border-color: var(--line-ink); }

.side-fc { border: 2px solid color-mix(in srgb, var(--river) 55%, var(--paper-1)); }
.side-eras a { display: flex; justify-content: space-between; gap: 8px; }
.side-eras a::after { content: none; }
.side-eras a .n { font-size: 12px; font-weight: 500; color: var(--ink-3); }
.side-eras a[aria-current="page"] { color: var(--river-deep); }
.side-eras a[aria-current="page"] span:first-child::before { content: ''; display: inline-block; width: 6px; height: 6px; margin: 0 6px 2px 0; border-radius: 50%; background: var(--river); }

/* ---- フラッシュカードクイズ（モーダル） ---- */
.fc-overlay { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 16px;
  background: color-mix(in srgb, var(--ink-1) 55%, transparent); animation: fc-fade var(--dur-base) var(--ease-out); }
.fc-box { width: min(560px, 100%); max-height: calc(100dvh - 32px); display: flex; flex-direction: column; overflow: hidden;
  border-radius: 20px; background: var(--paper-texture), var(--paper-1); box-shadow: var(--shadow-sheet); }
.fc-head { display: flex; align-items: center; gap: 10px; padding: 12px 12px 10px 20px; border-bottom: 1px solid var(--line-1); }
.fc-heading { font-size: 15px; font-weight: 900; font-variant-numeric: tabular-nums; }
.fc-score { margin-left: auto; font-size: 13px; font-weight: 700; color: var(--moss); font-variant-numeric: tabular-nums; }
.fc-close { width: 44px; height: 44px; border: 0; border-radius: var(--r-md); background: none; font-size: 24px; line-height: 1; color: var(--ink-2); cursor: pointer; }
.fc-score:empty + .fc-close { margin-left: auto; }
.fc-close:hover { background: var(--paper-2); }
.fc-body { position: relative; padding: 18px 20px 20px; overflow-y: auto; }
.fc-lead { margin: 0 0 12px; font-size: 14px; line-height: 1.9; color: var(--ink-2); }
.fc-body .chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 14px; }
.chip { display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 0 14px; border-radius: var(--r-pill); border: 2px solid var(--line-2);
  background: var(--card); font: inherit; font-size: 13.5px; font-weight: 700; color: var(--ink-2); cursor: pointer; }
.chip span { font-size: 11.5px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.chip:hover { background: var(--paper-2); }
.chip.on { background: var(--ink-1); border-color: var(--ink-1); color: var(--paper-0); }
.chip.on span { color: color-mix(in srgb, var(--paper-0) 75%, transparent); }
.fc-menu { display: grid; gap: 10px; }
.fc-allknown { margin: 0; padding: 10px 12px; border-radius: var(--r-md); background: var(--moss-pale); font-size: 14px; font-weight: 700; color: var(--moss); }
.fc-note { margin: 12px 0 0; font-size: 12.5px; line-height: 1.8; color: var(--ink-3); }
.fc-reset { padding: 0; border: 0; background: none; font: inherit; color: var(--ink-3); text-decoration: underline; cursor: pointer; }
.fc-reset:hover { color: var(--shu-deep); }

.fc-stage { perspective: 1200px; }
.fc-card { position: relative; display: flex; flex-direction: column; width: 100%; padding: 22px 20px 20px; overflow-y: auto;
  border-radius: 16px; border: 2px solid var(--line-2); background: var(--paper-0); box-shadow: var(--shadow-2);
  text-align: left; cursor: pointer; transform-origin: center; }
.fc-card:focus-visible { outline: none; box-shadow: var(--focus-ring); }
.fc-card.is-back { border-color: var(--line-ink); }
.fc-card.flip-out { transform: rotateY(90deg); transition: transform 150ms var(--ease-out); }
.fc-card.flip-in { animation: fc-flip-in 170ms var(--ease-out); }
@keyframes fc-flip-in { from { transform: rotateY(-90deg); } to { transform: rotateY(0); } }
@keyframes fc-fade { from { opacity: 0; } to { opacity: 1; } }
.fc-badge { position: absolute; top: 14px; right: 14px; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%;
  background: var(--river); color: var(--paper-0); font-size: 14px; font-weight: 900; }
.is-back .fc-badge { background: var(--moss); }
.fc-cat { font-size: 12px; font-weight: 700; color: var(--ink-3); padding-right: 40px; }
.fc-label { margin-top: 8px; font-size: 13px; font-weight: 700; color: var(--ink-3); line-height: 1.9; }
.fc-q { display: block; margin: auto 0; padding: 10px 0; font-size: 18px; font-weight: 700; line-height: 2.05; }
.fc-q.small { margin: 8px 0 0; padding: 0; font-size: 13.5px; font-weight: 500; line-height: 1.95; color: var(--ink-2); }
.fc-hint { margin-top: 8px; font-size: 12.5px; font-weight: 700; color: var(--river-deep); text-align: center; }
.fc-a { display: block; margin: 12px 0 0; padding: 10px 14px; border-radius: var(--r-md); background: var(--moss-pale); font-size: 20px; font-weight: 900; line-height: 1.9; }
.fc-ex { display: block; margin: 10px 0 0; font-size: 14px; line-height: 2; color: var(--ink-2); }
.fc-tl { align-self: flex-start; display: inline-block; margin-top: 8px; font-size: 13px; font-weight: 700; color: var(--river-deep); text-decoration: none; }   /* カードは縦の flex なので、指定しないとリンクが横幅いっぱいに伸びる */
.fc-tl:hover { color: var(--river-deep); text-decoration: underline; }
.fc-measure { position: absolute; left: -9999px; top: 0; visibility: hidden; pointer-events: none; }
.fc-measure .fc-card { height: auto !important; overflow: visible; }
.fc-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.fc-actions .wide { grid-column: 1 / -1; }
.fc-actions.stack { grid-template-columns: 1fr; }
.btn.known { background: var(--moss); border-color: var(--moss); }
.btn.known:hover { background: color-mix(in srgb, var(--moss) 82%, var(--ink-1)); border-color: color-mix(in srgb, var(--moss) 82%, var(--ink-1)); }
.btn.unknown { background: var(--card); border-color: var(--ochre); color: var(--ink-1); }
.btn.unknown:hover { background: var(--ochre-pale); }
.fc-result { padding: 10px 0 4px; text-align: center; }
.fc-result .big { margin: 0; font-size: 18px; font-weight: 700; color: var(--ink-2); }
.fc-result .big b { font-size: 46px; font-weight: 900; color: var(--moss); font-variant-numeric: tabular-nums; }
.fc-result .big small { font-size: 16px; color: var(--ink-3); }
.fc-result .msg { margin: 8px 0 0; font-size: 14.5px; line-height: 1.9; color: var(--ink-2); }
@media (max-width: 560px) {
  .fc-overlay { padding: 10px; align-items: end; }
  .fc-box { max-height: calc(100dvh - 20px); }
  .fc-body { padding: 14px 14px 16px; }
  .fc-q { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  .fc-overlay, .fc-card.flip-in { animation: none; }
  .fc-card.flip-out { transition: none; }
}

/* ---- スマホ ---- */
@media (max-width: 560px) {
  .ichimonitto h1 { font-size: 23px; }
  .qa summary { gap: 10px; padding: 12px; flex-wrap: wrap; }
  .qm { margin-left: 40px; }
  .qt { flex-basis: calc(100% - 40px); }
  .ans { padding: 0 12px 14px; }
  .known-btn { margin-left: 10px; }
}
.ans .tl.ar { margin-left: 16px; }   /* 答えの中の「読みもの」リンク（年表で見る の右） */