/* ============================================================
   Structure Notes — 実務メモ用 図解キット
   対象: /insights/<slug>/ の記事本文のみ（main.css のトークンを使用）
   方針: 図はHTML/CSSで組み、画像の中に情報を閉じない。
         デスクトップは横、スマートフォンは縦積み／横スクロール表に切り替える。
   ============================================================ */

.insights-article-body {
  --sn-accent: #9A3412;          /* 人が判断する点・後戻りできない点にだけ使う */
  --sn-accent-soft: #FBF1EC;
  --sn-ink-soft: #2A2F38;
}


/* ---------- 記事本文の既定スタイル（li の罫線・記号、p の余白）を図の中では打ち消す ---------- */
.insights-article-body :where(.sn-fig, .sn-first, .sn-decide) li { padding: 0; border-bottom: 0; font-size: inherit; }
.insights-article-body :where(.sn-fig, .sn-first, .sn-decide) :is(ul, ol) > li::before { content: none; }
.insights-article-body :where(.sn-fig, .sn-first, .sn-decide) p { margin-bottom: 0; }

/* ---------- 更新日 ---------- */
.insights-article-hero .ia-meta .ia-updated { color: var(--ink); }

/* ---------- この記事で判断できること ---------- */
.insights-article-body .sn-decide {
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--line);
  padding: 28px 0 8px;
  margin-bottom: 48px;
}
.insights-article-body .sn-decide-label {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  font-family: var(--font-jp); font-weight: 700; font-size: 15px; color: var(--ink);
  margin-bottom: 18px;
}
.insights-article-body .sn-decide-label .en {
  font-family: var(--font-mono); font-size: 10px; font-weight: 400;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--mute);
}
.insights-article-body .sn-decide ol { list-style: none; margin: 0; padding: 0; counter-reset: snd; }
.insights-article-body .sn-decide li {
  counter-increment: snd;
  display: grid; grid-template-columns: 44px minmax(0, 1fr) minmax(0, 1.25fr); gap: 20px;
  padding: 16px 0; border-top: 1px solid var(--line-soft);
}
.insights-article-body .sn-decide li::before {
  content: counter(snd, decimal-leading-zero);
  font-family: var(--font-mono); font-size: 12px; font-weight: 500; color: var(--mute);
  padding-top: 3px;
}
.insights-article-body .sn-decide .q { font-family: var(--font-jp); font-weight: 700; font-size: 15px; line-height: 1.7; color: var(--ink); }
.insights-article-body .sn-decide .a { font-family: var(--font-jp); font-size: 14px; line-height: 1.85; color: var(--ink-2); }
.insights-article-body .sn-decide .a strong { color: var(--ink); font-weight: 700; }

/* ---------- 図の外枠 ---------- */
.insights-article-body .sn-fig {
  margin: 48px 0 64px;
  padding: 36px 36px 28px;
  background: var(--bg-faint);
  border: 1px solid var(--line);
  position: relative;
}
.insights-article-body .sn-fig::before {             /* 左上の支配色ライン */
  content: ""; position: absolute; left: -1px; top: -1px; width: 72px; height: 3px; background: var(--ink);
}
@media (min-width: 1100px) {
  .insights-article-body .sn-fig--wide { margin-left: -100px; margin-right: -100px; }
}
.insights-article-body .sn-fig-head {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px;
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--mute);
  margin-bottom: 12px;
}
.insights-article-body .sn-fig-no { color: var(--ink); font-weight: 500; }
.insights-article-body .sn-fig-title {
  font-family: var(--font-jp); font-weight: 700; font-size: clamp(17px, 1.9vw, 21px); line-height: 1.55; color: var(--ink);
  margin: 0 0 10px;
}
.insights-article-body .sn-fig-read {
  font-family: var(--font-jp); font-size: 12px; line-height: 1.7; color: var(--mute);
  margin: 0 0 24px; padding-bottom: 16px; border-bottom: 1px solid var(--line);
}
.insights-article-body .sn-fig-read::before { content: "読み順 ─ "; font-family: var(--font-mono); letter-spacing: 0.08em; }
.insights-article-body .sn-fig-cap {
  margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--line);
  font-family: var(--font-jp); font-size: 13px; line-height: 1.9; color: var(--ink-2);
}
.insights-article-body .sn-fig-cap strong { color: var(--ink); font-weight: 700; }
.insights-article-body .sn-fig-note {
  margin: 12px 0 0; font-family: var(--font-jp); font-size: 11.5px; line-height: 1.8; color: var(--mute);
}
.insights-article-body .sn-fig-note a { color: var(--ink-2); text-decoration: underline; text-underline-offset: 2px; }
.insights-article-body .sn-sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- 凡例・ラベル ---------- */
.insights-article-body .sn-legend {
  display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 20px;
  font-family: var(--font-jp); font-size: 12px; color: var(--ink-2);
}
.insights-article-body .sn-legend span { display: inline-flex; align-items: center; gap: 8px; }
.insights-article-body .sn-legend span::before { content: ""; width: 12px; height: 12px; border: 1px solid var(--ink); background: #fff; flex: none; }
.insights-article-body .sn-legend .k-ink::before { background: var(--ink); }
.insights-article-body .sn-legend .k-accent::before { background: var(--sn-accent); border-color: var(--sn-accent); }
.insights-article-body .sn-legend .k-dash::before { border-style: dashed; background: transparent; }
.insights-article-body .sn-legend .k-soft::before { background: var(--bg-soft); border-color: var(--line); }

.insights-article-body .sn-badge {
  display: inline-block; vertical-align: 2px;
  font-family: var(--font-jp); font-size: 11px; font-weight: 700; line-height: 1; letter-spacing: 0.04em;
  padding: 5px 8px; border: 1px solid var(--ink-2); color: var(--ink-2); background: #fff;
}
.insights-article-body .sn-badge--human { border-color: var(--sn-accent); color: var(--sn-accent); }
.insights-article-body .sn-badge--ink { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- フロー（横 → スマホで縦） ---------- */
.insights-article-body .sn-flow {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(var(--n, 4), minmax(0, 1fr)); gap: 28px;
  counter-reset: snf;
}
.insights-article-body .sn-flow > li {
  counter-increment: snf;
  position: relative; background: #fff; border: 1px solid var(--ink);
  padding: 18px 16px 16px; display: flex; flex-direction: column; gap: 8px; min-width: 0;
}
.insights-article-body .sn-flow > li::before {
  content: counter(snf, decimal-leading-zero);
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; color: var(--mute);
}
.insights-article-body .sn-flow > li:not(:last-child)::after {
  content: ""; position: absolute; right: -22px; top: 50%; width: 16px; height: 1px; background: var(--ink);
}
.insights-article-body .sn-flow > li:not(:last-child) > .sn-step-t::after {
  content: ""; position: absolute; right: -23px; top: calc(50% - 4px);
  border: 4px solid transparent; border-left: 6px solid var(--ink); border-right: 0;
}
.insights-article-body .sn-flow .sn-step-t { font-family: var(--font-jp); font-weight: 700; font-size: 15px; line-height: 1.5; color: var(--ink); }
.insights-article-body .sn-flow .sn-step-d { font-family: var(--font-jp); font-size: 12.5px; line-height: 1.75; color: var(--ink-2); }
.insights-article-body .sn-flow .sn-step-who {
  margin-top: auto; padding-top: 10px; border-top: 1px dashed var(--line);
  font-family: var(--font-jp); font-size: 11.5px; line-height: 1.6; color: var(--ink);
}
.insights-article-body .sn-flow .sn-step-who::before { content: "担当 "; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; color: var(--mute); }
.insights-article-body .sn-flow > li.is-key { background: var(--ink); }
.insights-article-body .sn-flow > li.is-key::before, .insights-article-body .sn-flow > li.is-key .sn-step-d { color: rgba(255,255,255,0.72); }
.insights-article-body .sn-flow > li.is-key .sn-step-t, .insights-article-body .sn-flow > li.is-key .sn-step-who { color: #fff; }
.insights-article-body .sn-flow > li.is-human { border-color: var(--sn-accent); box-shadow: inset 0 3px 0 var(--sn-accent); }
.insights-article-body .sn-flow > li.is-muted { border-style: dashed; background: transparent; }
.insights-article-body .sn-flow-loop {
  margin-top: 16px; display: flex; align-items: center; gap: 12px;
  font-family: var(--font-jp); font-size: 12.5px; color: var(--ink-2);
}
.insights-article-body .sn-flow-loop::before { content: "↺"; font-family: var(--font-mono); font-size: 16px; color: var(--ink); }

/* ---------- 左右対比 ---------- */
.insights-article-body .sn-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0; border: 1px solid var(--ink); background: #fff; }
.insights-article-body .sn-split > div { padding: 22px 22px 20px; min-width: 0; }
.insights-article-body .sn-split > div + div { border-left: 1px solid var(--ink); }
.insights-article-body .sn-split .sn-split-h {
  font-family: var(--font-jp); font-weight: 700; font-size: 15.5px; line-height: 1.5; color: var(--ink);
  padding-bottom: 12px; margin-bottom: 12px; border-bottom: 1px solid var(--line);
}
.insights-article-body .sn-split .sn-split-h small {
  display: block; font-family: var(--font-mono); font-size: 10px; font-weight: 400; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mute); margin-bottom: 6px;
}
.insights-article-body .sn-split ul { list-style: none; margin: 0; padding: 0; }
.insights-article-body .sn-split li {
  font-family: var(--font-jp); font-size: 13px; line-height: 1.75; color: var(--ink-2);
  padding: 8px 0 8px 18px; position: relative; border-bottom: 1px solid var(--line-soft);
}
.insights-article-body .sn-split li:last-child { border-bottom: 0; }
.insights-article-body .sn-split li::before { content: "─"; position: absolute; left: 0; color: var(--mute); }
.insights-article-body .sn-split > .is-good { background: var(--ink); }
.insights-article-body .sn-split > .is-good .sn-split-h { color: #fff; border-color: rgba(255,255,255,0.2); }
.insights-article-body .sn-split > .is-good .sn-split-h small { color: rgba(255,255,255,0.6); }
.insights-article-body .sn-split > .is-good li { color: rgba(255,255,255,0.86); border-color: rgba(255,255,255,0.12); }
.insights-article-body .sn-split > .is-good li::before { content: "→"; color: #fff; }
.insights-article-body .sn-split-foot { margin-top: 14px; font-family: var(--font-jp); font-size: 12.5px; line-height: 1.8; color: var(--ink-2); }

/* ---------- 表（比較・役割・シート） ---------- */
.insights-article-body .sn-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--ink); background: #fff; }
.insights-article-body .sn-table-wrap:focus { outline: 2px solid var(--ink); outline-offset: 2px; }
.insights-article-body .sn-table { width: 100%; border-collapse: collapse; font-family: var(--font-jp); font-size: 13px; line-height: 1.7; color: var(--ink-2); }
.insights-article-body .sn-table caption { caption-side: top; text-align: left; padding: 12px 16px; font-size: 12px; color: var(--mute); border-bottom: 1px solid var(--line); }
.insights-article-body .sn-table th, .insights-article-body .sn-table td { padding: 12px 14px; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line-soft); text-align: left; vertical-align: top; }
.insights-article-body .sn-table th:last-child, .insights-article-body .sn-table td:last-child { border-right: 0; }
.insights-article-body .sn-table tr:last-child > * { border-bottom: 0; }
.insights-article-body .sn-table thead th {
  background: var(--ink); color: #fff; font-weight: 700; font-size: 12.5px; white-space: nowrap; border-right-color: rgba(255,255,255,0.14);
}
.insights-article-body .sn-table tbody th { color: var(--ink); font-weight: 700; background: var(--bg-faint); min-width: 7.5em; }
.insights-article-body .sn-table td strong { color: var(--ink); }
.insights-article-body .sn-table .is-col-good { background: #F3F4F6; color: var(--ink); }
.insights-article-body .sn-table--roles td { text-align: center; white-space: nowrap; }
.insights-article-body .sn-table--roles td.l { text-align: left; white-space: normal; }
.insights-article-body .sn-mark { font-family: var(--font-mono); font-size: 14px; color: var(--ink); }
.insights-article-body .sn-mark--a { color: var(--sn-accent); }
.insights-article-body .sn-blank { display: block; min-height: 1.7em; border-bottom: 1px dotted var(--mute); }
.insights-article-body .sn-table--sheet td { min-width: 10em; }
.insights-article-body .sn-scroll-hint { display: none; margin-top: 8px; font-family: var(--font-jp); font-size: 11px; color: var(--mute); }

/* ---------- 判断フロー（問いを順に） ---------- */
.insights-article-body .sn-tree { list-style: none; margin: 0; padding: 0; counter-reset: snq; }
.insights-article-body .sn-tree > li {
  counter-increment: snq;
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 0;
  border: 1px solid var(--ink); background: #fff; position: relative;
}
.insights-article-body .sn-tree > li + li { margin-top: 26px; }
.insights-article-body .sn-tree > li + li::before {
  content: "いいえ／次へ ↓"; position: absolute; top: -22px; left: 18px;
  font-family: var(--font-jp); font-size: 11px; color: var(--mute);
}
.insights-article-body .sn-tree .sn-q-t {
  padding: 16px 18px; font-family: var(--font-jp); font-weight: 700; font-size: 14.5px; line-height: 1.65; color: var(--ink);
  border-right: 1px solid var(--ink);
}
.insights-article-body .sn-tree .sn-q-t::before {
  content: "Q" counter(snq); display: block; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.14em; color: var(--mute); margin-bottom: 4px;
}
.insights-article-body .sn-tree .sn-yes { padding: 16px 18px; font-family: var(--font-jp); font-size: 13px; line-height: 1.75; color: var(--ink-2); }
.insights-article-body .sn-tree .sn-yes b { display: block; font-size: 11px; font-family: var(--font-jp); color: var(--mute); font-weight: 500; margin-bottom: 4px; }
.insights-article-body .sn-tree .sn-yes strong { color: var(--ink); }
.insights-article-body .sn-tree > li.is-stop .sn-yes { background: var(--sn-accent-soft); }
.insights-article-body .sn-tree > li.is-stop .sn-yes strong { color: var(--sn-accent); }
.insights-article-body .sn-tree-end {
  margin-top: 26px; padding: 16px 18px; background: var(--ink); color: #fff; position: relative;
  font-family: var(--font-jp); font-size: 14px; font-weight: 700; line-height: 1.7;
}
.insights-article-body .sn-tree-end::before { content: "すべて通過 ↓"; position: absolute; top: -22px; left: 18px; font-size: 11px; font-weight: 400; color: var(--mute); }

/* ---------- 2x2 マトリクス ---------- */
.insights-article-body .sn-matrix { display: grid; grid-template-columns: 28px minmax(0, 1fr) minmax(0, 1fr); grid-template-rows: auto auto auto; gap: 0; }
.insights-article-body .sn-matrix .sn-ax-y {
  grid-row: 1 / span 2; writing-mode: vertical-rl; transform: rotate(180deg); text-align: center;
  font-family: var(--font-jp); font-size: 11.5px; color: var(--ink-2); padding: 0 4px;
}
.insights-article-body .sn-matrix .sn-ax-x { grid-column: 2 / span 2; display: flex; justify-content: space-between; padding-top: 8px; font-family: var(--font-jp); font-size: 11.5px; color: var(--ink-2); }
.insights-article-body .sn-matrix .sn-cell { border: 1px solid var(--ink); margin: -1px 0 0 -1px; background: #fff; padding: 16px 16px 14px; min-height: 132px; }
.insights-article-body .sn-matrix .sn-cell h4 { font-family: var(--font-jp); font-weight: 700; font-size: 14.5px; line-height: 1.5; color: var(--ink); margin: 0 0 6px; }
.insights-article-body .sn-matrix .sn-cell p { font-family: var(--font-jp); font-size: 12.5px; line-height: 1.75; color: var(--ink-2); margin: 0; }
.insights-article-body .sn-matrix .sn-cell small { display: block; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; color: var(--mute); margin-bottom: 6px; }
.insights-article-body .sn-matrix .sn-cell.is-key { background: var(--ink); }
.insights-article-body .sn-matrix .sn-cell.is-key h4 { color: #fff; }
.insights-article-body .sn-matrix .sn-cell.is-key p, .insights-article-body .sn-matrix .sn-cell.is-key small { color: rgba(255,255,255,0.78); }
.insights-article-body .sn-matrix .sn-cell.is-human { box-shadow: inset 0 3px 0 var(--sn-accent); }

/* ---------- 段階ロードマップ ---------- */
.insights-article-body .sn-phases { display: grid; grid-template-columns: repeat(var(--n, 3), minmax(0, 1fr)); gap: 0; border-top: 2px solid var(--ink); }
.insights-article-body .sn-phase { padding: 16px 18px 18px 0; min-width: 0; }
.insights-article-body .sn-phase + .sn-phase { padding-left: 18px; border-left: 1px solid var(--line); }
.insights-article-body .sn-phase-when { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; color: var(--mute); }
.insights-article-body .sn-phase-t { font-family: var(--font-jp); font-weight: 700; font-size: 16px; line-height: 1.5; color: var(--ink); margin: 4px 0 12px; }
.insights-article-body .sn-phase ul { list-style: none; margin: 0; padding: 0; }
.insights-article-body .sn-phase li { font-family: var(--font-jp); font-size: 12.5px; line-height: 1.75; color: var(--ink-2); padding: 7px 0 7px 16px; position: relative; border-top: 1px solid var(--line-soft); }
.insights-article-body .sn-phase li::before { content: "□"; position: absolute; left: 0; font-size: 10px; top: 9px; color: var(--ink); }
.insights-article-body .sn-phase-out { margin-top: 12px; padding: 10px 12px; background: #fff; border: 1px solid var(--line); font-family: var(--font-jp); font-size: 12px; line-height: 1.7; color: var(--ink); }
.insights-article-body .sn-phase-out::before { content: "完了の目安 "; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; color: var(--mute); }

/* ---------- 要素マップ（n要素を1枚で） ---------- */
.insights-article-body .sn-map { display: grid; grid-template-columns: repeat(var(--n, 3), minmax(0, 1fr)); gap: 12px; counter-reset: snm; }
.insights-article-body .sn-map > div { counter-increment: snm; background: #fff; border: 1px solid var(--line); padding: 14px 14px 12px; min-width: 0; }
.insights-article-body .sn-map > div::before { content: counter(snm, decimal-leading-zero); display: block; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.12em; color: var(--mute); margin-bottom: 4px; }
.insights-article-body .sn-map > div.sn-map-core { grid-column: 1 / -1; background: var(--ink); border-color: var(--ink); counter-increment: none; }
.insights-article-body .sn-map > div.sn-map-core::before { content: none; }
.insights-article-body .sn-map h4 { font-family: var(--font-jp); font-weight: 700; font-size: 14px; line-height: 1.5; color: var(--ink); margin: 0 0 4px; }
.insights-article-body .sn-map p { font-family: var(--font-jp); font-size: 12px; line-height: 1.7; color: var(--ink-2); margin: 0; }
.insights-article-body .sn-map .sn-map-core h4, .insights-article-body .sn-map .sn-map-core p { color: #fff; }
.insights-article-body .sn-map .sn-map-core p { color: rgba(255,255,255,0.75); }
.insights-article-body .sn-map > div.is-human { border-color: var(--sn-accent); box-shadow: inset 0 3px 0 var(--sn-accent); }

/* ---------- 層構造 ---------- */
.insights-article-body .sn-layers { display: flex; flex-direction: column; gap: 0; }
.insights-article-body .sn-layer { display: grid; grid-template-columns: 9.5em minmax(0, 1fr); border: 1px solid var(--ink); background: #fff; margin-top: -1px; }
.insights-article-body .sn-layer > b { padding: 16px; font-family: var(--font-jp); font-size: 13px; font-weight: 700; color: var(--ink); background: var(--bg-soft); border-right: 1px solid var(--ink); line-height: 1.6; }
.insights-article-body .sn-layer > div { padding: 16px 18px; font-family: var(--font-jp); font-size: 13px; line-height: 1.8; color: var(--ink-2); }
.insights-article-body .sn-layer > div strong { color: var(--ink); }
.insights-article-body .sn-layer.is-key > b { background: var(--ink); color: #fff; }

/* ---------- チェックリスト／テンプレート ---------- */
.insights-article-body .sn-check { list-style: none; margin: 0; padding: 0; }
.insights-article-body .sn-check li {
  display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 12px; align-items: start;
  padding: 11px 0; border-top: 1px solid var(--line); font-family: var(--font-jp); font-size: 13.5px; line-height: 1.75; color: var(--ink);
}
.insights-article-body .sn-check li::before { content: ""; width: 14px; height: 14px; border: 1.5px solid var(--ink); margin-top: 5px; background: #fff; }
.insights-article-body .sn-check li small { display: block; font-size: 12px; color: var(--ink-2); }
.insights-article-body .sn-check-cols { display: grid; grid-template-columns: repeat(var(--n, 3), minmax(0, 1fr)); gap: 24px; }
.insights-article-body .sn-check-cols h4 { font-family: var(--font-jp); font-weight: 700; font-size: 14px; color: var(--ink); margin: 0 0 6px; padding-bottom: 8px; border-bottom: 2px solid var(--ink); }
.insights-article-body .sn-check-cols h4 small { font-family: var(--font-mono); font-size: 10px; font-weight: 400; letter-spacing: 0.12em; color: var(--mute); margin-right: 8px; }

/* ---------- 最初に確認する3項目 ---------- */
.insights-article-body .sn-first { margin: 8px 0 72px; background: var(--ink); color: #fff; padding: 36px 36px 30px; position: relative; overflow: hidden; }
.insights-article-body .sn-first::after {             /* 質感: 細いグリッドで奥行き */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0.07;
  background-image: linear-gradient(rgba(255,255,255,0.9) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.9) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: linear-gradient(120deg, transparent 35%, #000 100%);
  -webkit-mask-image: linear-gradient(120deg, transparent 35%, #000 100%);
}
.insights-article-body .sn-first-label { font-family: var(--font-mono); font-size: 10.5px; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(255,255,255,0.55); }
.insights-article-body .sn-first h2 { font-family: var(--font-jp); font-weight: 700; font-size: clamp(20px, 2.2vw, 26px); line-height: 1.5; color: #fff; margin: 8px 0 22px; padding: 0; border: 0; }
.insights-article-body .sn-first ol { list-style: none; margin: 0; padding: 0; counter-reset: snx; position: relative; z-index: 1; }
.insights-article-body .sn-first li {
  counter-increment: snx; display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 12px;
  padding: 16px 0; border-top: 1px solid rgba(255,255,255,0.16);
  font-family: var(--font-jp); font-size: 14.5px; line-height: 1.8; color: rgba(255,255,255,0.86);
}
.insights-article-body .sn-first li::before { content: counter(snx, decimal-leading-zero); font-family: var(--font-en); font-weight: 200; font-size: 34px; line-height: 1; color: #fff; }
.insights-article-body .sn-first li strong { display: block; color: #fff; font-weight: 700; font-size: 15.5px; margin-bottom: 2px; }
.insights-article-body .sn-first li small { display: block; margin-top: 6px; font-size: 12px; color: rgba(255,255,255,0.6); }

/* ---------- 出典・確認日 ---------- */
.insights-article-body .sn-source { margin: 16px 0 0; padding-top: 12px; border-top: 1px dashed var(--line); font-family: var(--font-jp); font-size: 11.5px; line-height: 1.8; color: var(--mute); }
.insights-article-body .sn-source b { font-family: var(--font-mono); font-weight: 500; font-size: 10px; letter-spacing: 0.12em; color: var(--ink-2); margin-right: 8px; }
.insights-article-body .sn-source a { color: var(--ink-2); text-decoration: underline; text-underline-offset: 2px; word-break: break-all; }

/* ---------- 段階リビール（JSがある時だけ） ---------- */
@media (prefers-reduced-motion: no-preference) {
  .sn-js .insights-article-body .sn-fig [data-sn-rv] > * { opacity: 0; transform: translateY(10px); transition: opacity 0.6s var(--ease-main), transform 0.6s var(--ease-main); }
  .sn-js .insights-article-body .sn-fig.is-in [data-sn-rv] > * { opacity: 1; transform: none; }
  .sn-js .insights-article-body .sn-fig.is-in [data-sn-rv] > *:nth-child(2) { transition-delay: 0.08s; }
  .sn-js .insights-article-body .sn-fig.is-in [data-sn-rv] > *:nth-child(3) { transition-delay: 0.16s; }
  .sn-js .insights-article-body .sn-fig.is-in [data-sn-rv] > *:nth-child(4) { transition-delay: 0.24s; }
  .sn-js .insights-article-body .sn-fig.is-in [data-sn-rv] > *:nth-child(5) { transition-delay: 0.32s; }
  .sn-js .insights-article-body .sn-fig.is-in [data-sn-rv] > *:nth-child(6) { transition-delay: 0.40s; }
  .sn-js .insights-article-body .sn-fig.is-in [data-sn-rv] > *:nth-child(n+7) { transition-delay: 0.48s; }
}

/* ---------- スマートフォン ---------- */
@media (max-width: 760px) {
  .insights-article-body .sn-decide li { grid-template-columns: 32px minmax(0, 1fr); gap: 4px 12px; }
  .insights-article-body .sn-decide .a { grid-column: 2; }
  .insights-article-body .sn-fig { padding: 24px 18px 20px; margin: 36px 0 48px; }
  .insights-article-body .sn-flow { grid-template-columns: 1fr; gap: 22px; }
  .insights-article-body .sn-flow > li:not(:last-child)::after { right: auto; left: 24px; top: auto; bottom: -17px; width: 1px; height: 12px; }
  .insights-article-body .sn-flow > li:not(:last-child) > .sn-step-t::after { display: none; }
  .insights-article-body .sn-split { grid-template-columns: 1fr; }
  .insights-article-body .sn-split > div + div { border-left: 0; border-top: 1px solid var(--ink); }
  .insights-article-body .sn-tree > li { grid-template-columns: 1fr; }
  .insights-article-body .sn-tree .sn-q-t { border-right: 0; border-bottom: 1px solid var(--ink); }
  .insights-article-body .sn-matrix { grid-template-columns: 22px minmax(0, 1fr) minmax(0, 1fr); }
  .insights-article-body .sn-matrix .sn-cell { padding: 12px 10px; min-height: 0; }
  .insights-article-body .sn-matrix .sn-cell h4 { font-size: 13px; }
  .insights-article-body .sn-matrix .sn-cell p { font-size: 11.5px; }
  .insights-article-body .sn-phases { grid-template-columns: 1fr; }
  .insights-article-body .sn-phase, .insights-article-body .sn-phase + .sn-phase { padding: 16px 0; border-left: 0; border-top: 1px solid var(--line); }
  .insights-article-body .sn-map { grid-template-columns: 1fr 1fr; }
  .insights-article-body .sn-layer { grid-template-columns: 1fr; }
  .insights-article-body .sn-layer > b { border-right: 0; border-bottom: 1px solid var(--ink); }
  .insights-article-body .sn-check-cols { grid-template-columns: 1fr; }
  .insights-article-body .sn-table { font-size: 12.5px; }
  .insights-article-body .sn-table-wrap .sn-table { min-width: var(--min, 600px); }
  .insights-article-body .sn-scroll-hint { display: block; }
  .insights-article-body .sn-first { padding: 28px 20px 22px; }
  .insights-article-body .sn-first li { grid-template-columns: 42px minmax(0, 1fr); }
  .insights-article-body .sn-first li::before { font-size: 26px; }
}
@media (max-width: 420px) {
  .insights-article-body .sn-map { grid-template-columns: 1fr; }
}

/* ---------- 分岐の問い（split の上に置く） ---------- */
.insights-article-body .sn-split-q {
  display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap;
  padding: 12px 16px; margin-bottom: 18px; border: 1px solid var(--sn-accent); background: #fff;
  font-family: var(--font-jp); font-size: 14px; font-weight: 700; color: var(--ink); text-align: center; position: relative;
}
.insights-article-body .sn-split-q::after { content: ""; position: absolute; left: 50%; bottom: -13px; width: 1px; height: 12px; background: var(--sn-accent); }
.insights-article-body .sn-split-q small { font-family: var(--font-mono); font-size: 10px; font-weight: 400; letter-spacing: 0.14em; color: var(--sn-accent); }

/* ---------- 追加: 採点セル・後戻りできない層 ---------- */
.insights-article-body .sn-table td.n { text-align: center; font-family: var(--font-mono); font-size: 13px; color: var(--ink); white-space: nowrap; }
.insights-article-body .sn-layer.is-human { border-color: var(--sn-accent); position: relative; z-index: 1; }
.insights-article-body .sn-layer.is-human > b { background: var(--sn-accent); color: #fff; border-right-color: var(--sn-accent); }
@media (max-width: 760px) { .insights-article-body .sn-layer.is-human > b { border-bottom-color: var(--sn-accent); } }

/* ---------- 追加: 本文セクション内に置いた場合の打ち消し ---------- */
.insights-article-body .sn-flow > li::before,
.insights-article-body .sn-check li::before,
.insights-article-body .sn-decide li::before,
.insights-article-body .sn-first li::before { position: static; }
.insights-article-body .sn-phase li::before { position: absolute; left: 0; }
.insights-article-body .sn-check li > small { grid-column: 2; }
.insights-article-body .sn-layer > b small { display: block; margin-top: 4px; font-family: var(--font-mono); font-size: 10.5px; font-weight: 400; letter-spacing: 0.06em; color: var(--mute); }
.insights-article-body .sn-layer.is-key > b small, .insights-article-body .sn-layer.is-human > b small { color: rgba(255,255,255,0.7); }
@media (min-width: 761px) { .insights-article-body .sn-table--sheet td { min-width: 6em; } }
.insights-article-body .sn-table-wrap.is-overflow + .sn-scroll-hint { display: block; }
.insights-article-body .sn-source { overflow-wrap: anywhere; }
.insights-article-body .sn-table-wrap ~ .sn-table-wrap { margin-top: 20px; }
.insights-article-body .sn-tree > li + li::before, .insights-article-body .sn-tree-end::before { font-weight: 400; letter-spacing: 0; font-family: var(--font-jp); }

/* ---------- コントラスト: 読ませる注記は --ink-2（約7:1）。--mute は番号ラベルのみ ---------- */
.insights-article-body .sn-fig-read, .insights-article-body .sn-fig-note, .insights-article-body .sn-source,
.insights-article-body .sn-legend, .insights-article-body .sn-scroll-hint, .insights-article-body .sn-tree > li + li::before,
.insights-article-body .sn-tree-end::before { color: var(--ink-2); }