/*
 * manavigate — Site styles (Phase 1a)
 * 接頭辞: l- レイアウト / c- コンポーネント / t- 文字 / u- ユーティリティ
 * 色・寸法は tokens.css の変数のみを使う。
 */

/* ========== Base ========== */
*, *::before, *::after { box-sizing: border-box; }

html {
  color-scheme: light;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + var(--space-4));
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  letter-spacing: 0.03em;
  font-synthesis: none;
  font-kerning: normal;
  line-break: strict;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure, blockquote { margin: 0; }
ul[class], ol[class] { list-style: none; padding: 0; }

h1, h2, .u-heading-font {
  font-family: var(--font-heading);
  font-weight: var(--heading-weight);
  letter-spacing: var(--heading-tracking);
  line-height: var(--lh-heading);
}

h3 {
  font-size: var(--fs-h3);
  font-weight: 500;
  line-height: var(--lh-h3);
  letter-spacing: 0.02em;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }

a { color: inherit; }

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

::selection { background: var(--color-accent-tint); color: var(--color-ink); }

.u-visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.u-num { font-family: var(--font-sans); font-variant-numeric: tabular-nums; }
.u-nowrap { white-space: nowrap; }

/* 和文の折り返しを文節単位に（対応ブラウザのみ。非対応は通常の折り返し） */
.t-phrase,
.c-hero__lead,
.c-proof__value,
.c-define__desc,
.c-section-head__lead,
.c-cta__text,
.c-footer__tagline,
.c-tdiagram__text,
.c-tdiagram__note,
.c-tdiagram__question,
.c-ledger__body,
.c-page-hero__label,
.c-person-detail__message,
.c-figure__caption {
  word-break: auto-phrase;
  overflow-wrap: anywhere;
}

.c-icon {
  width: 1em;
  height: 1em;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: square;
}

/* ========== Layout ========== */
.l-container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.l-section { padding-block: var(--space-section); }
.l-section + .l-section { padding-top: 0; }

/* ========== Skip link ========== */
.c-skip {
  position: absolute;
  top: var(--space-2);
  left: var(--space-4);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  border: var(--rule-ink);
  background: var(--color-surface);
  color: var(--color-ink);
  font-size: var(--fs-small);
  text-decoration: none;
  transform: translateY(-200%);
}
.c-skip:focus { transform: none; }
.c-skip:focus-visible { outline-offset: -6px; }

/* ========== Text link ========== */
.t-link {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

@media (hover: hover) {
  .t-link { transition: color var(--dur-fast) var(--ease); }
  .t-link:hover { color: var(--color-accent-hover); text-decoration-thickness: 2px; }
}

/* 矢印つきテキストリンク */
.c-arrow-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-ink);
  text-decoration: underline;
  text-decoration-color: var(--color-line-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.35em;
}
.c-arrow-link .c-icon { width: 0.95em; height: 0.95em; }

@media (hover: hover) {
  .c-arrow-link { transition: text-decoration-color var(--dur-fast) var(--ease); }
  .c-arrow-link:hover { text-decoration-color: currentColor; }
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .c-arrow-link .c-icon { transition: transform var(--dur-base) var(--ease); }
  .c-arrow-link:hover .c-icon { transform: translateX(3px); }
}

/* ========== Button ========== */
.c-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  min-height: 44px;
  padding: 0 var(--space-5);
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}
.c-btn .c-icon { width: 1em; height: 1em; }

.c-btn--lg {
  min-height: 52px;
  padding: 0 var(--space-6);
  font-size: 1rem;
}

.c-btn--primary {
  background: var(--color-accent);
  color: var(--color-surface);
}

.c-btn--secondary {
  background: transparent;
  border-color: var(--color-line-strong);
  color: var(--color-ink);
}

@media (hover: hover) {
  .c-btn { transition: background-color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease); }
  .c-btn--primary:hover { background: var(--color-accent-hover); }
  .c-btn--secondary:hover { border-color: var(--color-ink); }
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .c-btn .c-icon { transition: transform var(--dur-base) var(--ease); }
  .c-btn:hover .c-icon { transform: translateX(3px); }
}

/* ========== Eyebrow ========== */
.t-eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}
.t-eyebrow__num { color: var(--color-ink); font-variant-numeric: tabular-nums; }
.t-eyebrow__rule {
  width: var(--space-6);
  border-top: 1px solid currentColor;
}

/* ========== Header ========== */
.c-header-sentinel { height: 1px; }

.c-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-paper);
  border-bottom: 1px solid transparent;
}
.c-header.is-stuck { border-bottom-color: var(--color-line); }

@media (prefers-reduced-motion: no-preference) {
  .c-header { transition: border-color var(--dur-base) var(--ease); }
}

.c-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: var(--header-h);
}

.c-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  margin-right: auto;
  min-height: 44px;
  color: var(--color-ink);
  text-decoration: none;
}
.c-brand__mark { flex: none; width: auto; height: 1.75rem; }
.c-brand__name {
  font-family: var(--font-sans);
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: -0.005em;
}

.c-nav { display: none; }
.c-nav__list { display: flex; align-items: center; gap: var(--space-6); }
.c-nav__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 0.9375rem;
  color: var(--color-ink-2);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.5em;
}
.c-nav__link[aria-current] {
  color: var(--color-ink);
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 2px;
}

@media (hover: hover) {
  .c-nav__link { transition: color var(--dur-fast) var(--ease), text-decoration-color var(--dur-fast) var(--ease); }
  .c-nav__link:hover { color: var(--color-ink); text-decoration-color: currentColor; }
}

.c-header__cta--short { display: none; }

.c-menu-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0 var(--space-3);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-control);
  background: transparent;
  color: var(--color-ink);
  font: inherit;
  font-size: var(--fs-small);
  letter-spacing: 0.06em;
  white-space: nowrap;
  cursor: pointer;
}
.c-menu-button .c-icon { width: 1rem; height: 1rem; }
.c-menu-button__close { display: none; }
.c-menu-button[aria-expanded="true"] .c-menu-button__open { display: none; }
.c-menu-button[aria-expanded="true"] .c-menu-button__close { display: block; }

.c-drawer {
  max-height: calc(100vh - var(--header-h));
  max-height: calc(100dvh - var(--header-h));
  overflow-y: auto;
  overscroll-behavior: contain;
  border-top: var(--rule-hair);
  background: var(--color-paper);
  padding-block: var(--space-4) var(--space-6);
}
.c-drawer[hidden] { display: none; }
.c-drawer__list { display: grid; }
.c-drawer__cta { margin-bottom: var(--space-4); width: 100%; }
.c-drawer__link[aria-current] {
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.5em;
}
.c-drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  border-bottom: var(--rule-hair);
  font-size: 1.0625rem;
  text-decoration: none;
  color: var(--color-ink);
}

@media (min-width: 22.5em) {
  .c-header__cta--short { display: inline-flex; padding: 0 var(--space-4); font-size: var(--fs-small); }
}

/* 400px 未満: ロゴ・短いCTA・メニューを1行に収める */
@media (max-width: 24.999em) {
  .c-header__inner, .c-brand { gap: var(--space-2); }
  .c-brand__mark { height: 1.5rem; }
  .c-brand__name { font-size: 1rem; }
  .c-header__cta--short { padding: 0 var(--space-3); }
  .c-menu-button { min-width: 44px; justify-content: center; padding: 0 var(--space-2); }
  .c-menu-button__label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}

@media (min-width: 56.25em) {
  .c-header__inner { gap: var(--space-7); }
  .c-nav { display: block; }
  .c-header__cta--short, .c-menu-button, .c-drawer { display: none; }
  .c-drawer[hidden] { display: none; }
}

@media (max-width: 56.249em) {
  .c-header__cta--full { display: none; }
}

/* JSなし: 固定ヘッダーをやめ、メニューを常時表示 */
html:not(.js) .c-header { position: static; }
html:not(.js) .c-menu-button { display: none; }

@media (max-width: 56.249em) {
  html:not(.js) .c-drawer[hidden] { display: block; max-height: none; }
}

/* ========== Home hero ========== */
.c-hero { padding-top: clamp(3rem, 1rem + 6vw, 7rem); padding-bottom: var(--space-6); }

.c-hero__grid { display: grid; gap: var(--space-7); }

.c-hero__title {
  margin-top: var(--space-5);
  max-width: 12em;
  font-size: var(--fs-display);
  line-height: var(--lh-display);
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.c-hero__main > .c-hero__title:first-child { margin-top: 0; }

.c-hero__lead {
  margin-top: var(--space-5);
  max-width: 34em;
  font-size: var(--fs-lead);
  line-height: var(--lh-lead);
  color: var(--color-ink-2);
}

.c-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-6);
  margin-top: var(--space-6);
}
.c-hero__cta-group { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-4); }
.c-hero__note { font-size: var(--fs-small); color: var(--color-ink-3); letter-spacing: 0.06em; }

/* 「IT翻訳家」の定義ブロック（比較用） */
.c-define { display: none; border-top: var(--rule-ink); padding-top: var(--space-4); }
.c-define__term {
  font-size: var(--fs-h2);
  line-height: 1.3;
}
.c-define__en {
  display: block;
  margin-top: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-ink-2);
}
.c-define__desc { margin-top: var(--space-4); color: var(--color-ink-2); font-size: var(--fs-body); }

:root[data-itl="define"] .c-define { display: block; }
:root[data-itl="define"] .c-hero__eyebrow { display: none; }

@media (min-width: 67.5em) {
  .c-hero__grid { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .c-hero__main { grid-column: 1 / span 8; }
  .c-define { grid-column: 9 / span 4; align-self: end; }
}

/* 証拠の抜粋（ProofStrip） */
.c-proof {
  margin-top: clamp(3rem, 1.5rem + 4vw, 6rem);
  border-top: var(--rule-hair);
  padding-top: var(--space-5);
}
.c-proof__list { display: grid; gap: var(--space-4) var(--space-6); }
.c-proof__label {
  font-size: var(--fs-caption);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-ink-2);
}
.c-proof__value {
  margin-top: var(--space-1);
  font-size: var(--fs-small);
  line-height: 1.7;
  color: var(--color-ink);
}
.c-proof__note { margin-top: var(--space-4); font-size: var(--fs-caption); color: var(--color-ink-2); }
.c-proof__more { margin-top: var(--space-2); }

@media (min-width: 37.5em) {
  .c-proof__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 67.5em) {
  .c-proof {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas: "list more" "note note";
    align-items: end;
    column-gap: var(--space-6);
  }
  .c-proof__list { grid-area: list; grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .c-proof__note { grid-area: note; }
  .c-proof__more { grid-area: more; margin-top: 0; }
}

/* 低い画面（ノートPC・横向きスマートフォン）: 大見出しを抑える */
@media (max-height: 45em) {
  :root {
    --fs-display: clamp(2rem, 1.35rem + 3.8vw, 2.75rem);
    --fs-stat: clamp(2.25rem, 1.8rem + 2vw, 2.75rem);
  }
}

/* ノートPC等の低い画面: ファーストビューに証拠の上端を収める */
@media (min-width: 56.25em) and (max-height: 45em) {
  .c-hero { padding-top: var(--space-6); }
  .c-hero__title { max-width: none; }
  .c-hero__lead { margin-top: var(--space-4); }
  .c-hero__actions { margin-top: var(--space-5); }
  .c-proof { margin-top: var(--space-6); }
}

/* 墨の帯（B案要素の比較用） */
:root[data-hero="ink"] .c-hero {
  background: var(--color-night);
  color: var(--color-night-ink);
  padding-bottom: var(--space-7);
}
:root[data-hero="ink"] .c-hero .t-eyebrow,
:root[data-hero="ink"] .c-hero__note,
:root[data-hero="ink"] .c-proof__label,
:root[data-hero="ink"] .c-proof__note,
:root[data-hero="ink"] .c-define__en { color: var(--color-night-ink-2); }
:root[data-hero="ink"] .c-hero__lead,
:root[data-hero="ink"] .c-define__desc { color: var(--color-night-ink-2); }
:root[data-hero="ink"] .c-proof__value,
:root[data-hero="ink"] .c-hero .c-arrow-link { color: var(--color-night-ink); }
:root[data-hero="ink"] .c-hero .c-arrow-link { text-decoration-color: var(--color-night-ink-2); }
:root[data-hero="ink"] .c-proof { border-top-color: var(--color-night-line); }
:root[data-hero="ink"] .c-define { border-top-color: var(--color-night-ink); }
:root[data-hero="ink"] .c-hero .c-btn--primary { background: var(--color-paper); color: var(--color-ink); }
:root[data-hero="ink"] .c-hero :focus-visible { outline-color: var(--color-accent-on-night); }

@media (hover: hover) {
  :root[data-hero="ink"] .c-hero .c-btn--primary:hover { background: var(--color-surface); }
}

/* ========== Section heading ========== */
.c-section-head { display: grid; gap: var(--space-5); margin-bottom: var(--space-7); }
.c-section-head__title,
.c-person-detail__def {
  margin-top: var(--space-4);
  font-size: var(--fs-h2);
  word-break: keep-all;
  word-break: auto-phrase;
  overflow-wrap: anywhere;
  text-wrap: balance;
}
.c-section-head__lead { max-width: var(--measure); color: var(--color-ink-2); }

@media (min-width: 56.25em) {
  .c-section-head { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); align-items: end; }
  .c-section-head__main { grid-column: 1 / span 6; }
  .c-section-head__lead { grid-column: 8 / span 5; }
}

/* ========== Evidence ledger ========== */
.c-ledger { border-top: var(--rule-ink); }

.c-ledger__head { display: none; }
.c-ledger__list { margin: 0; }

.c-ledger__row {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  grid-template-areas:
    "date kind"
    "body body"
    "person person"
    "source source";
  gap: var(--space-1) var(--space-4);
  padding-block: var(--space-5);
  border-bottom: var(--rule-hair);
}

.c-ledger__date { grid-area: date; font-size: var(--fs-small); font-variant-numeric: tabular-nums; letter-spacing: 0.04em; }
.c-ledger__kind { grid-area: kind; font-size: var(--fs-small); color: var(--color-ink-3); }
.c-ledger__body { grid-area: body; margin-top: var(--space-1); }
.c-ledger__person { grid-area: person; font-size: var(--fs-small); color: var(--color-ink-2); }
.c-ledger__source { grid-area: source; font-size: var(--fs-small); justify-self: start; }
.c-ledger__source a { display: inline-flex; align-items: center; gap: var(--space-1); min-height: 44px; }
.c-ledger__source .c-icon { width: 0.85em; height: 0.85em; }
.c-ledger__src-text { color: var(--color-ink-2); }

.c-ledger__notes, .c-page-note { margin-top: var(--space-5); display: grid; gap: var(--space-2); font-size: var(--fs-small); color: var(--color-ink-3); }

@media (min-width: 56.25em) {
  .c-ledger__head,
  .c-ledger__row {
    display: grid;
    grid-template-columns: 5.5rem 8.5rem 3.5rem minmax(0, 1fr) 9rem;
    grid-template-areas: "date person kind body source";
    column-gap: var(--space-5);
    align-items: baseline;
  }
  .c-ledger__head {
    padding-block: var(--space-3);
    border-bottom: var(--rule-hair);
    font-size: var(--fs-caption);
    font-weight: 500;
    letter-spacing: 0.12em;
    color: var(--color-ink-2);
  }
  .c-ledger__head span:last-child, .c-ledger__source { justify-self: end; }
  .c-ledger__body { margin-top: 0; }
  .c-ledger__source a { min-height: 0; }
}

/* ========== Translation diagram（図1） ========== */
.c-tdiagram { min-width: 0; }
.c-tdiagram__labels { display: none; }
.c-tdiagram__stages { display: grid; gap: var(--space-6); }
.c-tdiagram__stage { border-top: var(--rule-ink); padding-top: var(--space-4); }
.c-tdiagram__head { display: flex; align-items: baseline; gap: var(--space-3); }
.c-tdiagram__num {
  font-size: var(--fs-small);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
  color: var(--color-ink-3);
}
.c-tdiagram__title { font-size: var(--fs-h3); line-height: 1.4; }
.c-tdiagram__arrow { display: none; }
.c-tdiagram__cells { margin-top: var(--space-3); }
.c-tdiagram__cell {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-3);
  border-top: var(--rule-hair);
}
.c-tdiagram__layer {
  font-size: var(--fs-caption);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--color-ink-2);
}
.c-tdiagram__text { font-size: var(--fs-body); line-height: 1.7; }

.c-tdiagram__stage--gate {
  background: var(--color-accent-tint);
  border-top-color: var(--color-accent);
  padding: var(--space-4) var(--space-4) var(--space-5);
}
.c-tdiagram__head--gate { flex-wrap: wrap; }
.c-tdiagram__question { flex-basis: 100%; margin-top: var(--space-1); font-size: var(--fs-small); color: var(--color-ink-2); }
.c-tdiagram__exits { display: grid; gap: var(--space-2); margin-top: var(--space-4); }
.c-tdiagram__exit {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-small);
  font-weight: 500;
  line-height: 1.6;
}
.c-tdiagram__exit .c-icon { width: 1.5rem; height: 0.75rem; stroke-width: 1.25; }
.c-tdiagram__exit--stop { color: var(--color-ink-2); }

@supports (grid-template-rows: subgrid) {
  @media (min-width: 67.5em) {
    .c-tdiagram__body {
      display: grid;
      grid-template-columns: 7rem minmax(0, 1fr);
      grid-template-rows: auto repeat(3, auto);
      column-gap: var(--space-5);
    }
    .c-tdiagram__labels,
    .c-tdiagram__stages,
    .c-tdiagram__stage,
    .c-tdiagram__cells {
      display: grid;
      grid-template-rows: subgrid;
      row-gap: 0;
    }
    .c-tdiagram__labels { grid-column: 1; grid-row: 1 / span 4; }
    .c-tdiagram__labels span {
      display: flex;
      align-items: center;
      border-top: var(--rule-hair);
      font-size: var(--fs-caption);
      font-weight: 500;
      letter-spacing: 0.08em;
      color: var(--color-ink-2);
    }
    .c-tdiagram__labels span:first-child { border-top: 0; }
    .c-tdiagram__stages {
      grid-column: 2;
      grid-row: 1 / span 4;
      grid-template-columns: minmax(0, 1fr) 11.5rem minmax(0, 1fr) minmax(0, 1fr);
      column-gap: var(--space-6);
    }
    .c-tdiagram__stage { grid-row: 1 / span 4; }
    .c-tdiagram__head { position: relative; padding-bottom: var(--space-4); }
    .c-tdiagram__arrow {
      display: block;
      position: absolute;
      top: 0.45em;
      right: calc(var(--space-6) / -2 - 0.5em);
      color: var(--color-ink-3);
    }
    .c-tdiagram__stage--gate .c-tdiagram__arrow { right: calc(var(--space-6) / -2 - 0.5em - var(--space-4)); }
    .c-tdiagram__cells { grid-row: 2 / span 3; margin-top: 0; }
    .c-tdiagram__cell { align-content: center; padding-block: var(--space-4); }
    .c-tdiagram__layer {
      position: absolute;
      width: 1px;
      height: 1px;
      overflow: hidden;
      clip-path: inset(50%);
      white-space: nowrap;
    }
    .c-tdiagram__stage--gate .c-tdiagram__exits { grid-row: 2 / span 3; align-self: center; margin-top: 0; }
  }
}

/* 対応図（--bridge）：行が段階、列が層。狭い画面は縦に積む */
.c-tdiagram__cols { display: none; }
.c-tdiagram__rows { display: grid; gap: var(--space-6); }
.c-tdiagram__row { border-top: var(--rule-ink); padding-top: var(--space-4); }
.c-tdiagram__set { margin-top: var(--space-3); }
.c-tdiagram--bridge .c-tdiagram__text { font-weight: 500; }
.c-tdiagram__cell--bridge { padding-inline: var(--space-3); background: var(--color-paper-deep); }

@media (min-width: 56.25em) {
  .c-tdiagram__cols, .c-tdiagram__row, .c-tdiagram__set { display: grid; column-gap: var(--space-6); }
  .c-tdiagram__cols { grid-template-columns: 2.5rem repeat(3, minmax(0, 1fr)); padding-bottom: var(--space-3); font-size: var(--fs-caption); font-weight: 500; letter-spacing: 0.08em; color: var(--color-ink-2); }
  .c-tdiagram__cols > :nth-child(3) { padding-inline: var(--space-3); }
  .c-tdiagram__rows { gap: 0; border-top: var(--rule-ink); }
  .c-tdiagram__row { grid-template-columns: 2.5rem minmax(0, 1fr); padding-top: 0; border-top: 0; border-bottom: var(--rule-hair); }
  .c-tdiagram__row > .c-tdiagram__num { padding-top: var(--space-4); }
  .c-tdiagram__set { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 0; }
  .c-tdiagram--bridge .c-tdiagram__cell { position: relative; align-content: start; padding-block: var(--space-4); border-top: 0; }
  .c-tdiagram--bridge .c-tdiagram__layer { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .c-tdiagram--bridge .c-tdiagram__arrow { display: block; position: absolute; top: calc(var(--space-4) + 0.4em); right: calc(var(--space-6) / -2 - 0.5em); color: var(--color-ink-3); }
}

.c-figure__caption {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-3);
  border-top: var(--rule-hair);
  font-size: var(--fs-small);
  color: var(--color-ink-2);
}
.c-figure__num { font-weight: 600; color: var(--color-ink); font-variant-numeric: tabular-nums; }
.c-figure__source { flex-basis: 100%; font-size: var(--fs-caption); color: var(--color-ink-2); }

.c-approach__more,
.c-section-more { margin-top: var(--space-5); }

/* ========== CTA band ========== */
.c-cta { background: var(--color-paper-deep); padding-block: var(--space-section); }
.c-cta__inner { display: grid; gap: var(--space-6); border-top: var(--rule-ink); padding-top: var(--space-6); }
.c-cta__title {
  align-self: start;
  max-width: 17em;
  font-size: var(--fs-h2);
  word-break: keep-all;
  word-break: auto-phrase;
  overflow-wrap: anywhere;
  text-wrap: balance;
}
.c-cta__text { color: var(--color-ink-2); max-width: var(--measure); }
.c-cta__list { margin-top: var(--space-5); border-bottom: var(--rule-hair); }
.c-cta__list li { padding-block: var(--space-3); border-top: var(--rule-hair); font-size: var(--fs-small); }
.c-cta__actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3) var(--space-5); margin-top: var(--space-5); }
.c-cta__note { font-size: var(--fs-small); color: var(--color-ink-3); letter-spacing: 0.06em; }

@media (min-width: 56.25em) {
  .c-cta__inner { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .c-cta__title { grid-column: 1 / span 7; }
  .c-cta__body { grid-column: 8 / span 5; }
}

/* ========== Footer ========== */
.c-footer {
  background: var(--color-night);
  color: var(--color-night-ink);
  padding-block: var(--space-8) var(--space-5);
  font-size: var(--fs-small);
}
.c-footer :focus-visible { outline-color: var(--color-accent-on-night); }
.c-footer__grid { display: grid; gap: var(--space-7); }
.c-footer__brand .c-brand { color: var(--color-night-ink); }
.c-footer__tagline { margin-top: var(--space-3); color: var(--color-night-ink-2); }
.c-footer__address { margin-top: var(--space-4); font-style: normal; color: var(--color-night-ink-2); }
.c-footer__cols { display: grid; gap: var(--space-6); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.c-footer__label {
  font-size: var(--fs-caption);
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-night-ink-2);
}
.c-footer__list { margin-top: var(--space-3); display: grid; gap: var(--space-1); }
.c-footer__list a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  color: var(--color-night-ink);
  text-decoration: underline;
  text-decoration-color: transparent;
  text-underline-offset: 0.35em;
}
.c-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-8);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-night-line);
  color: var(--color-night-ink-2);
  font-size: var(--fs-caption);
  letter-spacing: 0.06em;
}
.c-footer__bottom a {
  display: inline-flex;
  align-items: center;
  min-height: 44px; /* 操作対象の大きさ（WCAG 2.5.8）。文字だけだと高さ23px */
  color: var(--color-night-ink-2);
}

@media (hover: hover) {
  .c-footer__list a { transition: text-decoration-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease); }
  .c-footer__list a:hover { color: var(--color-accent-on-night); text-decoration-color: currentColor; }
}

@media (min-width: 56.25em) {
  .c-footer__grid { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .c-footer__brand { grid-column: 1 / span 4; }
  .c-footer__cols { grid-column: 6 / span 7; grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ========== Page hero（サブページ共通） ========== */
.c-page-hero {
  padding-block: clamp(2.5rem, 1.5rem + 3vw, 4.5rem) var(--space-7);
  border-bottom: var(--rule-hair);
}
.c-breadcrumb { margin: 0; }
.c-breadcrumb__list { display: flex; flex-wrap: wrap; gap: var(--space-2); font-size: var(--fs-small); color: var(--color-ink-2); }
.c-breadcrumb__list a { color: var(--color-ink-2); text-underline-offset: 0.3em; }
.c-breadcrumb__sep { margin-right: var(--space-2); color: var(--color-ink-3); }
.c-page-hero__eyebrow { margin-top: var(--space-6); }
.c-page-hero__title { margin-top: var(--space-4); font-size: var(--fs-h1); }
.c-page-hero__lead {
  margin-top: var(--space-4);
  max-width: var(--measure);
  font-size: var(--fs-lead);
  line-height: var(--lh-lead);
  color: var(--color-ink-2);
  word-break: auto-phrase;
  overflow-wrap: anywhere;
}
/* 個人ページの役職・補助ラベル */
.c-page-hero__role, .c-page-hero__label { margin-top: var(--space-3); font-size: var(--fs-small); color: var(--color-ink-2); }
.c-page-hero__role { display: flex; flex-wrap: wrap; gap: 0 var(--space-4); letter-spacing: 0.04em; }

/* ========== Services（事業の3本柱） ========== */
.c-services { border-top: var(--rule-ui); }
.c-service {
  position: relative;
  display: grid;
  gap: var(--space-3);
  padding-block: var(--space-6);
  border-bottom: var(--rule-hair);
}
.c-service__num { font-size: var(--fs-small); font-weight: 500; font-variant-numeric: tabular-nums; letter-spacing: 0.08em; color: var(--color-ink-3); }
.c-service__title { font-size: var(--fs-h3); }
.c-service__title a { text-decoration: none; }
.c-service__title a::after { content: ""; position: absolute; inset: 0; }
.c-service__desc { margin-top: var(--space-2); color: var(--color-ink-2); max-width: var(--measure); word-break: auto-phrase; overflow-wrap: anywhere; }
.c-service__main, .c-case__main, .c-person__body, .c-feature__stat, .c-feature__body, .c-resource__body { min-width: 0; }
.c-service__links { position: relative; z-index: 1; display: grid; gap: 0; align-content: start; }
.c-service__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: var(--fs-small);
  color: var(--color-ink-2);
  text-decoration: underline;
  text-decoration-color: var(--color-line-strong);
  text-underline-offset: 0.3em;
}

@media (hover: hover) {
  .c-service__link { transition: color var(--dur-fast) var(--ease), text-decoration-color var(--dur-fast) var(--ease); }
  .c-service__link:hover { color: var(--color-ink); text-decoration-color: currentColor; }
}

@media (hover: hover) {
  .c-service__title a { text-decoration: underline; text-decoration-color: transparent; text-decoration-thickness: 1px; text-underline-offset: 0.3em; transition: text-decoration-color var(--dur-fast) var(--ease); }
  .c-service:hover .c-service__title a { text-decoration-color: currentColor; }
}

@media (min-width: 56.25em) {
  .c-service { grid-template-columns: 4rem minmax(0, 7fr) minmax(0, 4fr); column-gap: var(--space-6); align-items: start; }
  .c-service__num { line-height: var(--lh-h3); padding-top: 0.2em; }
}

/* ========== 数値（Featured の大きな数字など） ========== */
.c-stat__value { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-2); }
.c-stat__num {
  font-family: var(--font-latin), var(--font-jp-sans);
  font-size: var(--fs-stat);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.c-stat__unit { font-size: var(--fs-h3); font-weight: 500; }
.c-stat__caption { margin-top: var(--space-3); font-size: var(--fs-small); color: var(--color-ink-2); }

/* ========== Case study ========== */
.c-feature {
  display: grid;
  gap: var(--space-6);
  padding-block: var(--space-6) var(--space-7);
  border-top: var(--rule-ink);
  border-bottom: var(--rule-hair);
}
.c-feature__label { display: block; margin-bottom: var(--space-3); font-size: var(--fs-small); font-weight: 500; letter-spacing: 0.06em; color: var(--color-ink-2); }
.c-feature__title { font-size: var(--fs-h3); }
.c-feature__text { margin-top: var(--space-4); max-width: var(--measure); word-break: auto-phrase; overflow-wrap: anywhere; }
.c-feature__meta { margin-top: var(--space-5); display: grid; gap: var(--space-1); font-size: var(--fs-small); color: var(--color-ink-2); }
.c-feature__meta div { display: flex; flex-wrap: wrap; gap: 0 var(--space-3); }
.c-feature__meta dt { font-weight: 500; color: var(--color-ink); }

@media (min-width: 56.25em) {
  .c-feature { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .c-feature__stat { grid-column: 1 / span 4; padding-top: var(--space-2); }
  .c-feature__body { grid-column: 6 / span 7; }
}

.c-cases { margin-top: var(--space-2); }
.c-section-head + .c-cases { margin-top: 0; border-top: var(--rule-ui); }
.c-case {
  position: relative;
  display: grid;
  gap: var(--space-2);
  padding-block: var(--space-5);
  border-bottom: var(--rule-hair);
}
.c-case__num { font-size: var(--fs-small); font-weight: 500; font-variant-numeric: tabular-nums; letter-spacing: 0.08em; color: var(--color-ink-3); }
.c-case__label { font-size: var(--fs-small); color: var(--color-ink-2); }
.c-case__title { margin-top: var(--space-1); font-size: 1.0625rem; line-height: 1.7; word-break: auto-phrase; overflow-wrap: anywhere; }
.c-case__title a { text-decoration: none; }
.c-case__title a::after { content: ""; position: absolute; inset: 0; }
.c-case__tags { display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-3); font-size: var(--fs-small); color: var(--color-ink-2); }
.c-case__arrow { display: none; }

@media (hover: hover) {
  .c-case__title a { text-decoration: underline; text-decoration-color: transparent; text-decoration-thickness: 1px; text-underline-offset: 0.3em; transition: text-decoration-color var(--dur-fast) var(--ease); }
  .c-case:hover .c-case__title a { text-decoration-color: currentColor; }
}

@media (min-width: 56.25em) {
  .c-case { grid-template-columns: 6rem minmax(0, 1fr) 11rem 1.5rem; column-gap: var(--space-6); align-items: baseline; }
  .c-case__arrow { display: block; align-self: center; color: var(--color-ink-2); }
}


.c-quote { margin-top: var(--space-8); max-width: 44em; }
.c-quote__text {
  padding-left: var(--space-5);
  border-left: var(--rule-ui);
  font-size: var(--fs-lead);
  font-weight: 500;
  line-height: var(--lh-lead);
  word-break: auto-phrase;
  overflow-wrap: anywhere;
}
.c-quote__cite { margin-top: var(--space-3); padding-left: calc(var(--space-5) + 1px); font-size: var(--fs-small); color: var(--color-ink-2); }

/* ========== Insights & R&D ========== */
.c-split { display: grid; gap: var(--space-8); }

@media (min-width: 56.25em) {
  .c-split { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); align-items: start; }
  .c-split__main { grid-column: 1 / span 7; }
  .c-split__aside { grid-column: 8 / span 5; }
}

.c-sublabel { font-size: var(--fs-small); font-weight: 500; letter-spacing: 0.06em; color: var(--color-ink-2); }
.c-resources { margin-top: var(--space-4); border-top: var(--rule-ui); }
.c-resource {
  position: relative;
  padding-block: var(--space-5);
  border-bottom: var(--rule-hair);
}
.c-resource__title { font-size: 1.0625rem; line-height: 1.7; word-break: auto-phrase; overflow-wrap: anywhere; }
.c-resource__title a { text-decoration: none; }
.c-resource__title a::after { content: ""; position: absolute; inset: 0; }
.c-resource__desc, .c-tdiagram__desc { margin-top: var(--space-1); font-size: var(--fs-small); color: var(--color-ink-2); word-break: auto-phrase; overflow-wrap: anywhere; }

@media (hover: hover) {
  .c-resource__title a { text-decoration: underline; text-decoration-color: transparent; text-decoration-thickness: 1px; text-underline-offset: 0.3em; transition: text-decoration-color var(--dur-fast) var(--ease); }
  .c-resource:hover .c-resource__title a { text-decoration-color: currentColor; }
}

.c-rnd {
  padding: var(--space-6) var(--space-5) var(--space-6);
  background: var(--color-paper-deep);
}
.c-rnd__title { margin-top: var(--space-3); font-size: var(--fs-h3); }
.c-rnd__text { margin-top: var(--space-3); color: var(--color-ink-2); word-break: auto-phrase; overflow-wrap: anywhere; }
.c-rnd__stat { margin-top: var(--space-5); padding-top: var(--space-4); border-top: var(--rule-hair); }
.c-rnd__stat .c-stat__num { font-size: clamp(2.25rem, 1.8rem + 1.5vw, 3rem); }
.c-rnd__more { margin-top: var(--space-4); }

@media (min-width: 37.5em) {
  .c-rnd { padding-inline: var(--space-6); }
}

/* 図2: 処理工程（直線の手順図） */
.c-pipeline { margin-top: var(--space-6); }
.c-pipeline__steps { margin-left: var(--space-2); border-left: var(--rule-ui); }
.c-pipeline__step {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  column-gap: var(--space-3);
  padding: var(--space-2) 0 var(--space-2) var(--space-4);
  font-size: var(--fs-small);
}
.c-pipeline__num { font-weight: 500; font-variant-numeric: tabular-nums; color: var(--color-ink-2); }
.c-pipeline .c-figure__caption { margin-top: var(--space-3); padding-top: 0; border-top: 0; }

/* ========== People ========== */
.c-people { display: grid; gap: var(--space-8); }
.c-person { display: grid; gap: var(--space-5); align-content: start; }
.c-person__photo { margin: 0; padding: var(--space-3); background: var(--color-paper-deep); max-width: 16rem; }
.c-person__photo img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.c-person__role { display: block; margin-bottom: var(--space-1); font-size: var(--fs-small); font-weight: 400; color: var(--color-ink-2); }
.c-person__name { font-size: var(--fs-h3); }
.c-person__en { display: block; margin-top: var(--space-1); font-size: var(--fs-small); font-weight: 400; letter-spacing: 0.04em; color: var(--color-ink-2); }
.c-person__text { margin-top: var(--space-4); word-break: auto-phrase; overflow-wrap: anywhere; }
.c-person__text .c-sublabel + .c-list { margin-top: var(--space-2); }
.c-person__more { margin-top: var(--space-3); }

@media (min-width: 37.5em) {
  .c-person { grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); column-gap: var(--space-6); }
  .c-person__photo { max-width: none; }
}

@media (min-width: 67.5em) {
  .c-people { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--space-8); }
}

/* 1人1行（紹介文が長いとき：会社概要） */
@media (min-width: 37.5em) {
  .c-people--stack .c-person { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); }
}

@media (min-width: 67.5em) {
  .c-people--stack { grid-template-columns: minmax(0, 1fr); row-gap: var(--space-8); }
  .c-people--stack .c-person { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); column-gap: var(--space-7); }
}

.c-people__more { margin-top: var(--space-7); }

/* ========== Phase 2: サブページの部品 ========== */

/* ページ内リンク（見出し帯の下） */
.c-anchor-nav { margin-top: var(--space-6); }
.c-anchor-nav__list { display: flex; flex-wrap: wrap; gap: 0 var(--space-5); }
.c-anchor-nav__list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: var(--fs-small);
  color: var(--color-ink-2);
  text-decoration: underline;
  text-decoration-color: var(--color-line-strong);
  text-underline-offset: 0.3em;
}

@media (hover: hover) {
  .c-anchor-nav__list a { transition: color var(--dur-fast) var(--ease), text-decoration-color var(--dur-fast) var(--ease); }
  .c-anchor-nav__list a:hover { color: var(--color-ink); text-decoration-color: currentColor; }
}

/* 本文の段落のまとまり */
.c-prose { display: grid; gap: var(--space-4); max-width: var(--measure); }
.c-prose p { word-break: auto-phrase; overflow-wrap: anywhere; }
.c-prose--muted { color: var(--color-ink-2); }

/* 罫線区切りの箇条書き */
.c-list { border-top: var(--rule-hair); }
.c-list > li {
  padding-block: var(--space-3);
  border-bottom: var(--rule-hair);
  word-break: auto-phrase;
  overflow-wrap: anywhere;
}
.c-list--small > li { font-size: var(--fs-small); }

/* キーワード（押せないので枠線・下線なし） */
.c-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.c-tags > li { padding: var(--space-1) var(--space-3); background: var(--color-paper-deep); font-size: var(--fs-small); line-height: 1.6; color: var(--color-ink-2); overflow-wrap: anywhere; }

/* 定義リスト（対象／内容…、会社情報など） */
.c-deflist { border-top: var(--rule-ui); }
.c-deflist__row {
  display: grid;
  gap: var(--space-1);
  padding-block: var(--space-4);
  border-bottom: var(--rule-hair);
}
.c-deflist dt { font-size: var(--fs-small); font-weight: 500; color: var(--color-ink-2); }
.c-deflist dd { word-break: auto-phrase; overflow-wrap: anywhere; }
.c-deflist--ink { border-top: var(--rule-ink); }

@media (min-width: 37.5em) {
  .c-deflist__row { grid-template-columns: 8rem minmax(0, 1fr); column-gap: var(--space-5); align-items: baseline; }
}

/* 小見出し（h3 相当のゴシック） */
.c-subhead { font-family: var(--font-sans); font-size: var(--fs-h3); font-weight: 500; letter-spacing: 0.02em; line-height: var(--lh-h3); }
.c-subhead + * { margin-top: var(--space-4); }

/* 区切りの中のブロック間隔 */
.c-stack { display: grid; gap: var(--space-7); }
.c-stack--tight { gap: var(--space-5); }

/* ---- 進め方（5段階） ---- */
.c-process { border-top: var(--rule-ink); }
.c-process__list { display: grid; }
.c-process__step {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  column-gap: var(--space-4);
  padding-block: var(--space-5);
  border-bottom: var(--rule-hair);
}
.c-process__num { font-size: var(--fs-small); font-weight: 500; font-variant-numeric: tabular-nums; letter-spacing: 0.08em; color: var(--color-ink-3); line-height: var(--lh-h3); }
.c-process__title { font-size: var(--fs-h3); }
.c-process__text { margin-top: var(--space-2); color: var(--color-ink-2); word-break: auto-phrase; overflow-wrap: anywhere; }
.c-process__note,
.c-tdiagram__note {
  margin-top: var(--space-3);
  padding-left: var(--space-3);
  border-left: var(--rule-ui);
  font-size: var(--fs-small);
  color: var(--color-ink-2);
}

@media (min-width: 67.5em) {
  .c-process__list { grid-template-columns: repeat(5, minmax(0, 1fr)); column-gap: var(--space-5); }
  .c-process__step { grid-template-columns: 1fr; row-gap: var(--space-3); align-content: start; border-bottom: 0; padding-bottom: 0; }
}

/* ---- サービスの詳細ブロック ---- */
.c-service-block {
  display: grid;
  gap: var(--space-6);
  padding-block: var(--space-7);
  border-top: var(--rule-hair);
}
.c-service-block:first-of-type { border-top: var(--rule-ui); }
.c-service-block__label { font-size: var(--fs-small); font-weight: 500; letter-spacing: 0.06em; color: var(--color-ink-2); }
.c-service-block__title { margin-top: var(--space-2); font-size: var(--fs-h3); }
.c-service-block__lead { margin-top: var(--space-3); font-weight: 500; word-break: auto-phrase; overflow-wrap: anywhere; }
.c-service-block__body { margin-top: var(--space-4); }

@media (min-width: 56.25em) {
  .c-service-block { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .c-service-block__main { grid-column: 1 / span 6; }
  .c-service-block__spec { grid-column: 8 / span 5; }
}

/* ---- 事例の詳細 ---- */
.c-case-detail { padding-block: var(--space-8); border-top: var(--rule-ink); }
.c-case-detail + .c-case-detail { margin-top: var(--space-2); }
.c-case-detail__title { margin-top: var(--space-4); font-size: var(--fs-h2); max-width: 22em; word-break: keep-all; word-break: auto-phrase; overflow-wrap: anywhere; text-wrap: balance; }
.c-case-detail__meta { margin-top: var(--space-6); }
.c-bna { display: grid; gap: var(--space-6); margin-top: var(--space-7); }
.c-bna__item { border-top: var(--rule-ui); padding-top: var(--space-4); }
.c-bna__label { font-size: var(--fs-small); font-weight: 500; letter-spacing: 0.06em; color: var(--color-ink-2); }
.c-bna__text { margin-top: var(--space-3); display: grid; gap: var(--space-3); word-break: auto-phrase; overflow-wrap: anywhere; }

@media (min-width: 56.25em) {
  .c-bna { grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: var(--space-6); }
}

.c-steps { margin-top: var(--space-7); }
.c-steps__title { font-size: var(--fs-small); font-weight: 500; letter-spacing: 0.06em; color: var(--color-ink-2); }
.c-steps__list { margin-top: var(--space-3); display: grid; border-top: var(--rule-hair); }
.c-steps__item {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  column-gap: var(--space-3);
  padding-block: var(--space-3);
  border-bottom: var(--rule-hair);
  font-size: var(--fs-small);
}
.c-steps__num { font-weight: 500; font-variant-numeric: tabular-nums; color: var(--color-ink-2); }

@media (min-width: 56.25em) {
  .c-steps__list { grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: var(--space-5); }
  .c-steps__item { grid-template-columns: 1fr; row-gap: var(--space-1); border-bottom: 0; }
}

/* お客様の声（複数） */
.c-voices { display: grid; gap: var(--space-7); }
.c-voices .c-quote { margin-top: 0; }

@media (min-width: 56.25em) {
  .c-voices { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--space-7); }
}

/* ---- 理念（3項目） ---- */
.c-triad { display: grid; gap: var(--space-6); border-top: var(--rule-ui); padding-top: var(--space-5); }
.c-triad__item { display: grid; gap: var(--space-2); align-content: start; }
.c-triad__num { font-size: var(--fs-small); font-weight: 500; font-variant-numeric: tabular-nums; color: var(--color-ink-3); }
.c-triad__en, .c-triad__label { font-size: var(--fs-small); font-weight: 500; letter-spacing: 0.04em; color: var(--color-ink-2); }
.c-triad__title { font-size: var(--fs-h3); }
.c-triad__text { color: var(--color-ink-2); word-break: auto-phrase; overflow-wrap: anywhere; }

@media (min-width: 56.25em) {
  .c-triad { grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: var(--space-6); }
}

/* 2項目（ミッション） */
@media (min-width: 37.5em) {
  .c-triad--pair { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: var(--space-6); }
}

/* ---- 代表メッセージ ---- */
.c-letter { display: grid; gap: var(--space-6); }
.c-letter__body { display: grid; gap: var(--space-4); max-width: var(--measure); }
.c-letter__body p { word-break: auto-phrase; overflow-wrap: anywhere; }
.c-letter__sign { margin-top: var(--space-3); font-size: var(--fs-small); color: var(--color-ink-2); }
.c-letter__sign strong { display: block; margin-top: var(--space-1); font-size: var(--fs-body); font-weight: 500; color: var(--color-ink); }

@media (min-width: 56.25em) {
  .c-letter { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .c-letter__head { grid-column: 1 / span 4; }
  .c-letter__body { grid-column: 6 / span 7; }
}

/* ---- 人物の詳細（役員紹介・個人ページ） ---- */
.c-person-detail { display: grid; gap: var(--space-6); padding-block: var(--space-8); border-top: var(--rule-ui); }
.c-person-detail__photo { margin: 0; padding: var(--space-3); background: var(--color-paper-deep); max-width: 18rem; }
.c-person-detail__photo img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.c-person-detail__name { font-size: var(--fs-h2); }
.c-person-detail__role { display: block; margin-bottom: var(--space-2); font-family: var(--font-sans); font-size: var(--fs-small); font-weight: 400; letter-spacing: 0.02em; color: var(--color-ink-2); }
.c-person-detail__en { display: block; margin-top: var(--space-2); font-family: var(--font-sans); font-size: var(--fs-small); font-weight: 400; letter-spacing: 0.04em; color: var(--color-ink-2); }
.c-person-detail__body { display: grid; gap: var(--space-6); min-width: 0; }

@media (min-width: 56.25em) {
  .c-person-detail { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .c-person-detail__photo { grid-column: 1 / span 4; max-width: none; align-self: start; }
  .c-person-detail__body { grid-column: 6 / span 7; }
}

/* 個人ページの冒頭（--hero）：本文が左、肖像が右 */
.c-person-detail--hero { padding-block: 0; border-top: 0; }
.c-person-detail__def { max-width: 20em; }
.c-person-detail__figure { max-width: 18rem; }
.c-person-detail__caption { margin-top: var(--space-4); }
.c-person-detail__message { margin-top: var(--space-2); font-size: var(--fs-lead); font-weight: 500; line-height: var(--lh-lead); }
.c-person-detail--hero .c-quote { margin-top: 0; }

@media (min-width: 56.25em) {
  .c-person-detail--hero .c-person-detail__body { grid-column: 1 / span 7; }
  .c-person-detail__figure { grid-column: 9 / span 4; max-width: none; }
}

/* ---- 年表 ---- */
.c-chronology { border-top: var(--rule-ink); }
.c-chronology__item {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  column-gap: var(--space-5);
  padding-block: var(--space-4);
  border-bottom: var(--rule-hair);
}
.c-chronology__date { font-size: var(--fs-small); font-variant-numeric: tabular-nums; letter-spacing: 0.04em; color: var(--color-ink-2); line-height: var(--lh-body); }
.c-chronology__text { word-break: auto-phrase; overflow-wrap: anywhere; }

/* ---- 発信・お知らせの一覧 ---- */
.c-newslist { border-top: var(--rule-ink); }
.c-newslist__item {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  grid-template-areas: "date kind" "body body" "link link";
  gap: var(--space-1) var(--space-4);
  padding-block: var(--space-5);
  border-bottom: var(--rule-hair);
}
.c-newslist__date { grid-area: date; font-size: var(--fs-small); font-variant-numeric: tabular-nums; letter-spacing: 0.04em; }
.c-newslist__kind { grid-area: kind; font-size: var(--fs-small); color: var(--color-ink-2); }
.c-newslist__body { grid-area: body; margin-top: var(--space-1); min-width: 0; }
.c-newslist__title { font-size: 1.0625rem; font-weight: 500; line-height: 1.7; word-break: auto-phrase; overflow-wrap: anywhere; }
.c-newslist__desc { margin-top: var(--space-1); font-size: var(--fs-small); color: var(--color-ink-2); word-break: auto-phrase; overflow-wrap: anywhere; }
.c-newslist__link { grid-area: link; font-size: var(--fs-small); }
.c-newslist__link a { display: inline-flex; align-items: center; gap: var(--space-1); min-height: 44px; }
.c-newslist__link .c-icon { width: 0.85em; height: 0.85em; }

@media (min-width: 56.25em) {
  .c-newslist__item {
    grid-template-columns: 5.5rem 4.5rem minmax(0, 1fr) 8rem;
    grid-template-areas: "date kind body link";
    column-gap: var(--space-5);
    align-items: baseline;
  }
  .c-newslist__body { margin-top: 0; }
  .c-newslist__link { justify-self: end; }
  .c-newslist__link a { min-height: 0; }
}

/* ---- 資料カード ---- */
.c-resource-cards { display: grid; gap: var(--space-6); }
.c-resource-card { display: grid; gap: var(--space-3); align-content: start; padding-top: var(--space-5); border-top: var(--rule-ui); }
.c-resource-card__label { font-size: var(--fs-small); font-weight: 500; letter-spacing: 0.06em; color: var(--color-ink-2); }
.c-resource-card__title { font-size: var(--fs-h3); word-break: auto-phrase; overflow-wrap: anywhere; }
.c-resource-card__desc { color: var(--color-ink-2); word-break: auto-phrase; overflow-wrap: anywhere; }
.c-resource-card__action { margin-top: var(--space-2); }

@media (min-width: 67.5em) {
  .c-resource-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: var(--space-6); }
}

/* 3列のとき、題名の行数が違っても説明・要点・ボタンの高さをそろえる */
@supports (grid-template-rows: subgrid) {
  @media (min-width: 67.5em) {
    .c-resource-cards { grid-template-rows: repeat(5, auto); }
    .c-resource-card { grid-row: span 5; grid-template-rows: subgrid; }
  }
}

/* ---- お問い合わせ ---- */
.c-contact { display: grid; gap: var(--space-8); }
.c-contact__info { display: grid; gap: var(--space-7); align-content: start; min-width: 0; }
.c-contact__form { min-width: 0; }
.c-contact__meta { display: grid; gap: var(--space-2); margin-top: var(--space-4); font-size: var(--fs-small); color: var(--color-ink-2); }

@media (min-width: 56.25em) {
  .c-contact { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); }
  .c-contact__info { grid-column: 1 / span 5; }
  .c-contact__form { grid-column: 7 / span 6; }
}

/* 外部フォームの枠。--live は本番の Google フォーム（iframe）、--placeholder はプレビュー用の仮枠。
   どちらも __frame が同じ寸法になるので、プレビューでも本番と同じレイアウトで確認できる */
.c-form-embed { display: grid; gap: var(--space-3); }
.c-form-embed__frame {
  width: 100%;
  height: var(--form-embed-h);
  border: var(--rule-ui);
  background: var(--color-surface);
}
.c-form-embed--live .c-form-embed__frame { display: block; }
.c-form-embed--placeholder .c-form-embed__frame {
  display: grid;
  place-content: center;
  padding: var(--space-6);
  text-align: center;
}
.c-form-embed__note { color: var(--color-ink-2); font-size: var(--fs-small); word-break: auto-phrase; overflow-wrap: anywhere; }
.c-form-embed__frame > .c-form-embed__note { max-width: 24em; }

/* ---- 規約・方針 ---- */
.c-legal { display: grid; gap: var(--space-7); }
.c-legal__toc { font-size: var(--fs-small); }
.c-legal__toc summary {
  display: list-item;
  min-height: 44px;
  padding-block: var(--space-2);
  font-weight: 500;
  cursor: pointer;
}
.c-legal__toc-list { margin-top: var(--space-2); border-top: var(--rule-hair); }
.c-legal__toc-list a {
  display: flex;
  align-items: center;
  min-height: 40px;
  padding-block: var(--space-1);
  border-bottom: var(--rule-hair);
  color: var(--color-ink-2);
  text-decoration: none;
}
@media (hover: hover) {
  .c-legal__toc-list a:hover { color: var(--color-ink); text-decoration: underline; }
}
.c-legal__body { display: grid; gap: var(--space-7); max-width: 42em; min-width: 0; }
.c-legal__article h2 { font-family: var(--font-sans); font-size: var(--fs-h3); font-weight: 500; letter-spacing: 0.02em; line-height: var(--lh-h3); }
.c-legal__article > * + * { margin-top: var(--space-3); }
.c-legal__article p, .c-legal__items li { word-break: auto-phrase; overflow-wrap: anywhere; }
.c-legal__items { display: grid; gap: var(--space-2); }
.c-legal__items li { padding-left: 2.5em; text-indent: -2.5em; }
.c-legal__sub { margin-top: var(--space-2); display: grid; gap: var(--space-2); padding-left: var(--space-3); }
ul.c-legal__items li, .c-legal__sub li { padding-left: 1em; text-indent: -1em; }

@media (min-width: 37.5em) {
  .c-legal__sub { padding-left: var(--space-5); }
}

@media (min-width: 80em) {
  .c-legal { grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--space-6); align-items: start; }
  .c-legal__toc { grid-column: 1 / span 3; position: sticky; top: calc(var(--header-h) + var(--space-5)); max-height: calc(100vh - var(--header-h) - var(--space-7)); overflow-y: auto; }
  .c-legal__body { grid-column: 5 / span 8; }
}

/* ---- 404 ---- */
.c-notfound { padding-block: var(--space-9) var(--space-section); }
.c-notfound__title { margin-top: var(--space-4); font-size: var(--fs-h1); }
.c-notfound__text { margin-top: var(--space-4); max-width: var(--measure); color: var(--color-ink-2); }
.c-notfound__links { margin-top: var(--space-7); max-width: 32rem; }
.c-notfound__action { margin-top: var(--space-7); }

/* ========== Reveal（一回きり・初回表示外のみ） ========== */
@media screen and (prefers-reduced-motion: no-preference) {
  html.reveal-ready [data-reveal] {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity var(--dur-reveal) var(--ease), transform var(--dur-reveal) var(--ease);
  }
  html.reveal-ready [data-reveal].is-revealed,
  html.reveal-ready [data-reveal]:focus-within { opacity: 1; transform: none; }
}

/* ========== 動きを減らす設定 ==========
   色の変化（hover の transition）も含め、reduce のときはすべて即時にする。 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}