/* ============================================================
   Cypher One — Corporate Site
   Design source of truth: llmo/03_design-direction.md §2
   淡ブルー × 白 × 明朝見出し。字間は letter-spacing のみ（テキストにスペース禁止）
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  /* color */
  --bg: #ffffff;
  --bg-tint: #f6fafe;
  --bg-tint-2: #eaf2fb;
  --ink: #14263f;
  --ink-soft: #3d5573;
  --ink-meta: #4e6379; /* #EAF2FB 上でも 4.5:1 を確保 */
  --primary: #2b6ce5;
  --primary-deep: #1e56c0;
  --primary-soft: #eaf1fd;
  --accent-purple: #7c4dff;
  --accent-purple-deep: #6b3be0; /* 小サイズ文字用（淡紫地でAA） */
  --purple-soft: #f1ecff;
  --badge-dark: #1b2a44;
  --line: #dce6f4;
  --card: #ffffff;

  /* type */
  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --text-base: clamp(0.95rem, 0.9rem + 0.2vw, 1.0625rem);
  --text-catch: clamp(2.35rem, 1.4rem + 4.2vw, 4.15rem);
  --text-h2: clamp(1.6rem, 1.3rem + 1.4vw, 2.35rem);
  --text-h3: clamp(1.1rem, 1rem + 0.5vw, 1.3rem);

  /* shape / depth */
  --radius: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 10px 34px rgba(43, 108, 229, 0.09), 0 2px 8px rgba(20, 38, 63, 0.05);
  --shadow-card-hover: 0 18px 46px rgba(43, 108, 229, 0.14), 0 4px 12px rgba(20, 38, 63, 0.07);

  /* rhythm */
  --space-section: clamp(4.5rem, 3rem + 6vw, 8.75rem);
  --w-max: 1120px;
  --w-text: 42rem;

  /* motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.6s;
}

/* ---------- Reset (lite) ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 96px; /* 固定ヘッダー分 */ }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 2;
  color: var(--ink);
  /* 全ページ共通の基調グラデ（この上に固定の流れ場canvas、さらに上に本文） */
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-tint) 55%, var(--bg-tint-2) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

/* 全ページ共通の背景: 固定の流れ場canvas（main.jsが生成・注入） */
.bg-flow {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  width: 100%;
  height: 100%;
}
/* 本文レイヤーは背景の上（fixed canvasより手前） */
.site-header { z-index: 50; } /* 既存の固定ヘッダー（元々50） */
main, .site-footer { position: relative; z-index: 1; }

h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; }
ul[class], ol[class] { padding: 0; list-style: none; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration-thickness: 1px; text-underline-offset: 0.25em; }
a:hover { color: var(--primary-deep); }
table { border-collapse: collapse; width: 100%; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 2px; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--ink);
  color: #fff;
  padding: 0.6em 1.2em;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- Utilities ---------- */
.wrap {
  width: min(100% - 3rem, var(--w-max));
  margin-inline: auto;
}

.eyebrow {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.22em; /* 字間はCSSで。テキストにスペースを入れない */
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 1rem;
}

.section { padding-block: var(--space-section); }
/* 帯のリズムは半透明で薄く残しつつ、背後の流れ場を全面で透過させる */
.section--tint { background: linear-gradient(180deg, rgba(234, 242, 251, 0.55) 0%, rgba(234, 242, 251, 0.25) 100%); }

.section-head { margin-bottom: clamp(2.5rem, 2rem + 2vw, 4rem); }
.section-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: var(--text-h2);
  letter-spacing: 0.08em;
  line-height: 1.5;
}
.section-lead {
  max-width: var(--w-text);
  margin-top: 1.25rem;
  color: var(--ink-soft);
}

/* underline-arrow link（モックの「事業を見る →」） */
.btn-line {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding-bottom: 0.45em;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--ink);
}
.btn-line .arrow { transition: transform 0.35s var(--ease-out); }
.btn-line:hover { color: var(--primary-deep); border-color: var(--primary-deep); }
.btn-line:hover .arrow { transform: translateX(6px); }

.btn-solid {
  display: inline-block;
  padding: 0.9em 2.6em;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(43, 108, 229, 0.28);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out), background 0.2s;
}
.btn-solid:hover {
  background: var(--primary-deep);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(43, 108, 229, 0.34);
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
}
.brand img { width: 40px; height: 40px; }
.brand-name {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.22rem;
  letter-spacing: 0.04em;
  line-height: 1;
}
.brand-suffix {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  margin-left: 0.35em;
}

.global-nav ul {
  display: flex;
  align-items: stretch;
  gap: 0;
}
.global-nav li { display: flex; align-items: center; padding-inline: clamp(0.7rem, 1.4vw, 1.3rem); }
.global-nav li + li { border-left: 1px solid var(--line); } /* モックの区切り線 */
.global-nav a {
  display: block;
  text-align: center;
  text-decoration: none;
  padding: 0.35em 0.15em;
}
.global-nav .nav-en {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--ink);
  line-height: 1.4;
}
.global-nav .nav-ja {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--primary);
  line-height: 1.4;
}
.global-nav a { position: relative; }
.global-nav a::after {
  content: "";
  position: absolute;
  left: 15%;
  right: 15%;
  bottom: -4px;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out);
}
.global-nav a:hover::after,
.global-nav a[aria-current="page"]::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
  transition: transform 0.3s var(--ease-out), opacity 0.2s;
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .global-nav {
    position: fixed;
    inset: 76px 0 auto 0;
    max-height: calc(100dvh - 76px);
    overflow-y: auto;
    background: rgba(255, 255, 255, 0.97);
    border-bottom: 1px solid var(--line);
    padding: 1.25rem 1.5rem 2rem;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.35s var(--ease-out), opacity 0.3s, visibility 0s 0.35s;
  }
  .global-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    transition: transform 0.35s var(--ease-out), opacity 0.3s;
  }
  .global-nav ul { flex-direction: column; align-items: stretch; gap: 0.25rem; }
  .global-nav li { display: block; padding-inline: 0; }
  .global-nav li + li { border-left: 0; }
  .global-nav a { display: flex; align-items: baseline; gap: 0.8em; padding: 0.7em 0.2em; text-align: left; }
  body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;   /* フォールバック */
  min-height: 100svh;  /* 実ビューポートを満たす（頭打ち撤去＝直下の帯の覗きを解消・モバイルURLバー変動に強い） */
  display: grid;
  align-items: center;
  padding-top: 76px;
  background: linear-gradient(180deg, #ffffff 0%, var(--bg-tint) 46%, var(--bg-tint-2) 100%);
  overflow: clip;
}
.hero-visual {
  position: absolute;
  inset: 0;
  pointer-events: none;
  /* ビジュアルは fv.js（three.js 3D波・現行サイト移植版） */
}
.hero-visual canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  /* 現行サイトと同じ: テキスト側(左40%)には波を出さない */
  -webkit-mask-image: linear-gradient(to right, transparent 0%, transparent 40%, rgba(0, 0, 0, 0.6) 52%, #000 65%);
  mask-image: linear-gradient(to right, transparent 0%, transparent 40%, rgba(0, 0, 0, 0.6) 52%, #000 65%);
}
@media (max-width: 900px) {
  .hero-visual canvas {
    -webkit-mask-image: linear-gradient(to bottom, transparent 0%, transparent 42%, rgba(0, 0, 0, 0.6) 56%, #000 70%);
    mask-image: linear-gradient(to bottom, transparent 0%, transparent 42%, rgba(0, 0, 0, 0.6) 56%, #000 70%);
  }
}
.hero-inner { position: relative; z-index: 1; }

.hero-catch {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: var(--text-catch);
  letter-spacing: 0.14em; /* モックのゆったりした字間（CSSのみで実現） */
  line-height: 1.6;
}
.hero-lead {
  margin-top: 1.9rem;
  max-width: 36em;
  font-size: clamp(0.98rem, 0.93rem + 0.25vw, 1.1rem);
  font-weight: 400; /* h1のUA太字を打ち消す（本文はSans 300-400） */
  line-height: 2;
  color: var(--ink-soft);
}
.hero-facts {
  margin-top: 1.1rem;
  max-width: 40em;
  font-size: 0.92rem;
  color: var(--ink-meta);
}
.hero-facts a { color: var(--primary); font-weight: 500; }
.hero-cta { margin-top: 2.4rem; }

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 1;
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  color: var(--ink-meta);
  text-align: center;
}
.scroll-cue::after {
  content: "";
  display: block;
  width: 1px;
  height: 34px;
  margin: 10px auto 0;
  background: linear-gradient(180deg, var(--ink-meta), transparent);
  animation: cue 2.2s var(--ease-out) infinite;
}
@keyframes cue {
  0% { transform: scaleY(0); transform-origin: top; }
  45% { transform: scaleY(1); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ---------- Business cards（モック_15準拠: ソリッドバッジ→ブランド名→コピー→円形3Dビジュアル→色付きリンク） ---------- */
.section--biz {
  position: relative;
  overflow: clip;
  /* 背景は全ページ共通の流れ場に一本化（透明化）。矩形画像は撤去 */
}
/* モック_15の斜めリボン */
.section--biz::before,
.section--biz::after {
  content: "";
  position: absolute;
  width: 46vw;
  height: 30vw;
  pointer-events: none;
}
.section--biz::before {
  right: -18vw;
  top: 8%;
  background: linear-gradient(120deg, rgba(124, 77, 255, 0.14), rgba(43, 108, 229, 0.05) 70%, transparent);
  transform: skewY(-14deg);
}
.section--biz::after {
  left: -22vw;
  bottom: -6%;
  background: linear-gradient(60deg, rgba(43, 108, 229, 0.1), transparent 70%);
  transform: skewY(-14deg);
}
.section--biz .wrap { position: relative; z-index: 1; }

.biz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: clamp(1.1rem, 1.8vw, 1.75rem);
}
.biz-card {
  --c: var(--primary);
  --c-deep: var(--primary-deep);
  --c-soft: var(--primary-soft);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  padding: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  background: var(--card);
  border: 1px solid rgba(220, 230, 244, 0.7);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s var(--ease-out);
}
.biz-card--ads { --c: var(--accent-purple); --c-deep: var(--accent-purple-deep); --c-soft: var(--purple-soft); }
.biz-card--cbyme { --c: var(--badge-dark); --c-deep: var(--badge-dark); --c-soft: #e8edf6; }
.biz-card--kikkake { --c: var(--primary-deep); }
.biz-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-card-hover); }

.biz-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: #fff;
  background: var(--c-deep); /* ソリッド濃色: 白文字でAA確保 */
  border-radius: 8px;
  padding: 0.32em 1em;
}
.biz-brand {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.35rem, 1.2rem + 0.7vw, 1.7rem);
  letter-spacing: 0.04em;
  line-height: 1.45;
}
.biz-reading {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--ink-meta);
  margin-top: 0.2em;
}
.biz-desc { font-size: 0.9rem; line-height: 1.95; color: var(--ink-soft); }
/* 円形の3Dアイコン置き場（Codex生成PNG） */
.biz-visual {
  align-self: center;
  width: clamp(120px, 10vw, 150px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  /* 説明文の行数差に関わらずアイコンを各カード下部の同一Yに揃える（カードは等高＝grid stretch） */
  margin-top: auto;
  margin-bottom: 0.9rem;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 26%, #ffffff 0%, var(--c-soft) 78%);
  border: 1px solid var(--line);
  box-shadow: inset 0 -10px 22px rgba(43, 108, 229, 0.08), 0 8px 20px rgba(20, 38, 63, 0.06);
  transition: transform 0.45s var(--ease-out);
}
.biz-card:hover .biz-visual { transform: translateY(-4px) scale(1.03); }
.biz-visual img,
.biz-visual svg { width: 82%; height: auto; }
.biz-card .card-link {
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--c-deep);
  text-decoration: none;
}
.biz-card .card-link::after { content: ""; position: absolute; inset: 0; }
.biz-card .card-link .arrow { display: inline-block; margin-left: 0.4em; transition: transform 0.35s var(--ease-out); }
.biz-card:hover .card-link .arrow { transform: translateX(5px); }

/* ---------- Foundation（人間理解 × データ — モック_16の連鎖レイアウト） ---------- */
.section--foundation {
  /* 背景は全ページ共通の流れ場に一本化（透明化）。矩形画像は撤去 */
}
.foundation-copy { max-width: 52rem; color: var(--ink-soft); }
.foundation-copy p + p { margin-top: 1.2em; }
.foundation-copy .section-title + p { margin-top: 1.4rem; }
.foundation-copy strong { color: var(--ink); font-weight: 600; }

.chain-row {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: clamp(0.4rem, 1.6vw, 1.4rem);
  margin-top: clamp(2.5rem, 2rem + 2.5vw, 4rem);
}
.chain-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  flex: 0 1 168px;
  text-align: center;
  text-decoration: none;
}
a.chain-node .disc { transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out); }
a.chain-node:hover .disc {
  transform: translateY(-5px);
  box-shadow: inset 0 -12px 24px rgba(43, 108, 229, 0.1), 0 16px 32px rgba(20, 38, 63, 0.14);
}
a.chain-node:hover .chain-label { text-decoration: underline; text-underline-offset: 0.3em; }
/* 台座風の円形ビジュアル（Codex生成の3Dアイコンに差し替え予定） */
.chain-node .disc {
  width: clamp(92px, 9vw, 128px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 24%, #ffffff 0%, #eef4fd 74%);
  border: 1px solid var(--line);
  box-shadow: inset 0 -12px 24px rgba(43, 108, 229, 0.1), 0 10px 24px rgba(20, 38, 63, 0.08);
}
.chain-node .disc img,
.chain-node .disc svg { width: 80%; height: auto; }
.chain-label {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--ink);
  line-height: 1.6;
}
.chain-node--core .chain-label { font-weight: 600; }
.chain-node--meo .chain-label { color: var(--primary-deep); }
.chain-node--ads .chain-label { color: var(--accent-purple-deep); }
.chain-node--cbyme .chain-label { color: var(--badge-dark); }
.chain-node--kikkake .chain-label { color: var(--primary-deep); }
.chain-arrow {
  align-self: center;
  margin-top: -1.6rem; /* discの中心高さに合わせる */
  color: var(--primary);
  font-size: 1.3rem;
  flex: 0 0 auto;
}
@media (max-width: 760px) {
  .chain-row { flex-direction: column; align-items: center; gap: 0.9rem; }
  .chain-node { flex-basis: auto; }
  .chain-arrow { margin-top: 0; transform: rotate(90deg); }
}
.chain-figure .node-label {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  fill: var(--ink);
  letter-spacing: 0.05em;
}
.chain-figure .node-sub { font-size: 10px; fill: var(--ink-meta); letter-spacing: 0.04em; }
.chain-figure .core-label { font-family: var(--font-serif); font-size: 16px; font-weight: 600; fill: var(--ink); letter-spacing: 0.1em; }
.chain-figure .core-sub { font-size: 10px; fill: var(--primary); letter-spacing: 0.18em; }

/* ---------- Company mini table ---------- */
.company-mini {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: start;
}
@media (max-width: 900px) {
  .company-mini { grid-template-columns: 1fr; }
}
.info-table { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow-card); overflow: hidden; }
.info-table th,
.info-table td {
  text-align: left;
  vertical-align: top;
  padding: 1.05em 1.4em;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  line-height: 1.9;
}
.info-table tr:last-child th,
.info-table tr:last-child td { border-bottom: 0; }
.info-table th {
  width: 11em;
  font-weight: 500;
  color: var(--primary);
  letter-spacing: 0.06em;
  white-space: nowrap;
  background: transparent; /* モック_17: 白地に青ラベル */
}
/* 狭幅では見出しを上に積む（長い所在地の折返し破綻を防ぐ） */
@media (max-width: 480px) {
  .info-table th,
  .info-table td { display: block; width: auto; }
  .info-table th { padding: 0.55em 1.2em; border-bottom: 0; }
  .info-table td { padding: 0.7em 1.2em 1em; }
}

/* ---------- CTA band ---------- */
.cta-band {
  background:
    radial-gradient(ellipse 60% 120% at 80% 120%, rgba(124, 77, 255, 0.14), transparent 60%),
    radial-gradient(ellipse 70% 130% at 15% -20%, rgba(43, 108, 229, 0.16), transparent 60%),
    var(--badge-dark);
  color: #fff;
  text-align: center;
  padding-block: clamp(3.5rem, 3rem + 3vw, 6rem);
}
.cta-band .section-title { color: #fff; }
.cta-band .eyebrow { color: #9dbbff; }
.cta-band p { color: rgba(255, 255, 255, 0.82); max-width: 34em; margin: 1.2rem auto 2.2rem; }

/* 汎用: セクション内のリンク行 */
.btn-line-row { margin-top: 2rem; }
.page-hero--center { min-height: 72vh; display: grid; align-items: center; }
.mt-lg { margin-top: 2.2rem; }
.footer-bottom--bare { border-top: 0; margin-top: 0; padding-top: 0; }

/* ---------- 汎用カード/グリッド（下層ページ用） ---------- */
.card {
  background: var(--card);
  border: 1px solid rgba(220, 230, 244, 0.7);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: clamp(1.5rem, 1.2rem + 1vw, 2.2rem);
}
/* 記事カードの線画サムネ（カード余白に収めるインセット配置） */
.card-thumb {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 12px;
  background: #eef4fd;
  border: 1px solid rgba(220, 230, 244, 0.7);
}
.card-thumb + .article-meta { margin-top: 1rem; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: clamp(1.1rem, 1.8vw, 1.75rem); }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: clamp(1.1rem, 1.8vw, 1.75rem); }

/* ---------- 役員プロフィール（/about・モック_13） ---------- */
.officer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: clamp(1.25rem, 2vw, 2rem); align-items: start; }
.officer-card { background: var(--card); border: 1px solid rgba(220, 230, 244, 0.7); border-radius: var(--radius); box-shadow: var(--shadow-card); overflow: hidden; }
.officer-photo { aspect-ratio: 4 / 3.4; overflow: hidden; background: var(--bg-tint-2); }
.officer-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center 24%; }
.officer-body { padding: clamp(1.4rem, 1.2rem + 0.8vw, 2rem); }
.officer-role { display: block; font-size: 0.78rem; font-weight: 500; letter-spacing: 0.18em; color: var(--primary); margin-bottom: 0.5rem; }
.officer-name { font-family: var(--font-serif); font-weight: 600; font-size: clamp(1.5rem, 1.3rem + 0.8vw, 1.9rem); letter-spacing: 0.1em; line-height: 1.4; }
.officer-name .kana { display: block; font-family: var(--font-sans); font-size: 0.78rem; font-weight: 400; letter-spacing: 0.2em; color: var(--ink-meta); margin-top: 0.4em; }
.officer-facts { margin-top: 1rem; font-size: 0.9rem; color: var(--ink-soft); line-height: 2; }
.officer-greeting { margin-top: 1.4rem; border-top: 1px solid var(--line); }
.officer-greeting summary {
  display: flex; align-items: center; justify-content: space-between; gap: 1em;
  padding: 1em 0.2em; cursor: pointer; list-style: none;
  font-weight: 500; letter-spacing: 0.1em; color: var(--ink);
}
.officer-greeting summary::-webkit-details-marker { display: none; }
.officer-greeting summary::after { content: "＋"; color: var(--primary); font-weight: 400; transition: transform 0.3s var(--ease-out); }
.officer-greeting[open] summary::after { content: "−"; }
.officer-greeting .greeting-body { padding: 0.2em 0.2em 1.2em; color: var(--ink-soft); font-size: 0.94rem; line-height: 2.15; }
.officer-greeting .greeting-body p + p { margin-top: 1.1em; }

/* ---------- 価値観 7C + CORE（/about・モック_14） ---------- */
.values-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); margin-top: 2.2rem; border-left: 1px solid var(--line); }
.value-item { padding: 0.4rem 1.1rem 0.6rem; border-right: 1px solid var(--line); }
.value-en { display: block; font-weight: 600; font-size: 0.95rem; letter-spacing: 0.04em; color: var(--ink); }
.value-ja { display: block; margin-top: 0.5em; font-size: 0.82rem; color: var(--ink-soft); line-height: 1.9; }
.core-band {
  display: flex; flex-wrap: wrap; align-items: center; gap: 1.2rem 2rem;
  margin-top: 2.2rem; padding: 1.4rem 1.8rem;
  background: linear-gradient(90deg, #ffffff 0%, var(--bg-tint) 100%);
  border: 1px solid var(--line); border-radius: var(--radius);
}
.core-mark { font-size: 1.9rem; color: var(--primary); line-height: 1; }
.core-tag { font-size: 0.74rem; font-weight: 500; letter-spacing: 0.24em; color: var(--primary); }
.core-text { font-family: var(--font-serif); font-weight: 600; font-size: clamp(1.15rem, 1rem + 0.8vw, 1.5rem); letter-spacing: 0.1em; }

/* ---------- 沿革 ---------- */
.timeline { border-left: 2px solid var(--primary-soft); padding-left: 1.6rem; }
.timeline li { position: relative; padding-bottom: 1.4rem; }
.timeline li::before { content: ""; position: absolute; left: calc(-1.6rem - 6px); top: 0.55em; width: 10px; height: 10px; border-radius: 50%; background: var(--primary); }
.timeline time { display: block; font-size: 0.82rem; font-weight: 500; letter-spacing: 0.1em; color: var(--primary); }
.timeline .tl-body { color: var(--ink-soft); }

/* ---------- フォーム（/contact・/recruit — モック_19/_20） ---------- */
.form { max-width: 46rem; }
.field { margin-bottom: 1.5rem; }
.field > label, .field > .field-label { display: block; font-size: 0.9rem; font-weight: 500; letter-spacing: 0.06em; margin-bottom: 0.5em; }
.req { color: #C33A3A; font-size: 0.8em; margin-left: 0.3em; }
.opt { color: var(--ink-meta); font-size: 0.8em; margin-left: 0.3em; font-weight: 400; }
.input, .form select, .form textarea {
  width: 100%; padding: 0.8em 1em;
  border: 1px solid var(--line); border-radius: 10px;
  background: #fff; color: var(--ink);
  font: inherit; font-size: 0.95rem;
}
.input:focus-visible, .form select:focus-visible, .form textarea:focus-visible {
  outline: 2px solid var(--primary); outline-offset: 1px;
}
.form textarea { min-height: 9em; resize: vertical; }
.radio-row { display: flex; flex-wrap: wrap; gap: 0.6rem 1.8rem; }
.radio-row label { display: inline-flex; align-items: center; gap: 0.5em; font-size: 0.93rem; cursor: pointer; }
.field-note { font-size: 0.8rem; color: var(--ink-meta); margin-top: 0.5em; }
.consent { display: flex; align-items: flex-start; gap: 0.7em; font-size: 0.9rem; margin: 1.8rem 0; }
.consent input { margin-top: 0.4em; }
.btn-submit {
  display: inline-block; width: min(100%, 22rem);
  padding: 0.95em 2em; border: 0; border-radius: 999px;
  background: var(--primary); color: #fff;
  font: inherit; font-weight: 500; letter-spacing: 0.12em; font-size: 1rem;
  cursor: pointer; box-shadow: 0 8px 24px rgba(43, 108, 229, 0.28);
  transition: background 0.2s, transform 0.35s var(--ease-out);
}
.btn-submit:hover { background: var(--primary-deep); transform: translateY(-2px); }

/* ---------- ニュース一覧（/news・モック_12） ---------- */
.filter-row { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 1.8rem; }
.chip {
  padding: 0.4em 1.4em; border-radius: 999px;
  border: 1px solid var(--primary); background: #fff; color: var(--primary-deep);
  font: inherit; font-size: 0.85rem; letter-spacing: 0.08em; cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.chip[aria-pressed="true"] { background: var(--primary); color: #fff; }
.news-list li + li { margin-top: 1rem; }
.news-item {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.6rem 1.4rem;
  background: var(--card); border: 1px solid rgba(220, 230, 244, 0.7);
  border-radius: var(--radius-sm); box-shadow: var(--shadow-card);
  padding: 1.3rem 1.6rem;
}
.news-date { font-size: 0.85rem; letter-spacing: 0.1em; color: var(--ink-meta); }
.news-tag { font-size: 0.72rem; font-weight: 500; letter-spacing: 0.12em; color: var(--primary-deep); background: var(--primary-soft); border-radius: 999px; padding: 0.25em 1em; }
.news-title { flex-basis: 100%; font-weight: 500; line-height: 1.9; }
.article-meta { display: flex; flex-wrap: wrap; gap: 0.5rem 1.6rem; font-size: 0.85rem; color: var(--ink-meta); margin-top: 1rem; }

/* ============================================================
   モック忠実化コンポーネント（2026-07-05 fidelity pass）
   ============================================================ */

/* --- トップの会社情報: リンクのみの控えめな帯 --- */
.section--slim { padding-block: clamp(3rem, 2.5rem + 2vw, 4.5rem); }
.company-band { text-align: center; }
.company-band-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.25rem, 1.1rem + 0.7vw, 1.6rem);
  letter-spacing: 0.14em;
}
.company-band-copy { margin-top: 0.7rem; font-size: 0.88rem; color: var(--ink-meta); }
.company-band .btn-line-row { margin-top: 1.4rem; }

/* --- 会社定義の控えめな帯（ヒーロー直下・LLMOのH1/事実の置き場） --- */
.intro-strip {
  background: rgba(255, 255, 255, 0.66); /* 背後の流れ場をうっすら透過（小さいグレー文字の可読性は維持） */
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1.5rem 0;
}
.intro-strip .intro-lead {
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 400;
  line-height: 2;
  color: var(--ink-meta);
  max-width: 62em;
}
.intro-strip .intro-facts {
  margin-top: 0.4rem;
  font-size: 0.78rem;
  line-height: 2;
  color: var(--ink-meta);
  max-width: 62em;
}

/* --- _11 ヒーロー: モックの視覚順（キャッチ→サブ3行→CTA が主役。H1(D1)+事実は下部の小さな帯） --- */
.hero-inner { display: flex; flex-direction: column; align-items: flex-start; }
.hero-inner > .eyebrow { order: 1; }
.hero-catch { order: 2; }
.hero-sub {
  order: 3;
  margin-top: 1.7rem;
  font-size: clamp(0.95rem, 0.9rem + 0.25vw, 1.08rem);
  line-height: 2.3;
  color: var(--ink-soft);
}
.hero-cta { order: 4; margin-top: 2.3rem; }
.hero-lead {
  order: 5;
  margin-top: clamp(2.2rem, 2rem + 2vw, 3.6rem);
  max-width: 46em;
  font-size: 0.8rem;
  font-weight: 400;
  line-height: 1.95;
  color: var(--ink-meta);
}
.hero-facts { order: 6; margin-top: 0.4rem; font-size: 0.76rem; }

/* --- _15 英字大見出し（Our Business Overview） --- */
.head-en {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(2.1rem, 1.5rem + 2.6vw, 3.4rem);
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--ink);
}
.head-dash { display: block; width: 46px; height: 3px; background: var(--primary); border: 0; margin: 1.3rem 0 1rem; }
.head-ja { font-size: 0.95rem; font-weight: 500; letter-spacing: 0.3em; color: var(--ink); }

/* --- _14 MISSION/VISION バンド --- */
.mvv-band {
  position: relative;
  background: rgba(255, 255, 255, 0.72); /* 白カード（波画像は撤去・背後の流れ場をうっすら透過） */
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
  border: 1px solid rgba(220, 230, 244, 0.8);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: clamp(1.8rem, 1.4rem + 1.6vw, 3rem);
}
.mvv-band + .mvv-band { margin-top: 1.2rem; }
.mvv-label { display: flex; align-items: baseline; gap: 1.1em; font-size: 0.8rem; font-weight: 600; letter-spacing: 0.24em; color: var(--primary); }
.mvv-label .ja { font-size: 0.76rem; font-weight: 400; letter-spacing: 0.12em; color: var(--ink-meta); }
.mvv-statement {
  margin-top: 1rem;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.55rem, 1.25rem + 1.5vw, 2.4rem);
  letter-spacing: 0.1em;
  line-height: 1.65;
}
.mvv-sub { margin-top: 0.9rem; max-width: 40em; font-size: 0.92rem; color: var(--ink-soft); }

/* --- _13 挨拶カード（写真右・開閉式） --- */
.greet-card {
  background: var(--card);
  border: 1px solid rgba(220, 230, 244, 0.7);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.greet-head { display: grid; grid-template-columns: 1fr 44%; min-height: 240px; }
.greet-meta { padding: clamp(1.4rem, 1.2rem + 0.8vw, 2rem); }
.greet-label { display: block; font-size: 0.92rem; font-weight: 600; letter-spacing: 0.16em; color: var(--primary); }
.greet-name { margin-top: 0.9rem; font-family: var(--font-serif); font-weight: 600; font-size: clamp(1.65rem, 1.4rem + 1vw, 2.1rem); letter-spacing: 0.16em; line-height: 1.4; }
.greet-name .kana { display: block; font-family: var(--font-sans); font-size: 0.74rem; font-weight: 400; letter-spacing: 0.22em; color: var(--ink-meta); margin-top: 0.5em; }
.greet-title { margin-top: 0.8rem; font-size: 0.8rem; letter-spacing: 0.08em; color: var(--ink-meta); line-height: 1.9; }
.greet-photo { position: relative; background: var(--bg-tint-2); }
.greet-photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 16%; }
.greet-facts { padding: 0 clamp(1.4rem, 1.2rem + 0.8vw, 2rem) 1.1rem; font-size: 0.86rem; line-height: 2.05; color: var(--ink-soft); }
.greet-details { border-top: 1px solid var(--line); }
.greet-details summary {
  display: flex; align-items: center; justify-content: space-between; gap: 1em;
  padding: 1em clamp(1.4rem, 1.2rem + 0.8vw, 2rem); cursor: pointer; list-style: none;
  font-size: 0.92rem; font-weight: 500; letter-spacing: 0.1em;
}
.greet-details summary::-webkit-details-marker { display: none; }
.greet-details summary .chev {
  flex: 0 0 auto; width: 36px; height: 36px; border-radius: 50%;
  border: 1px solid var(--line); display: grid; place-items: center;
  color: var(--primary); transition: transform 0.3s var(--ease-out); background: #fff;
}
.greet-details[open] summary .chev { transform: rotate(180deg); }
.greet-body { padding: 0.2em clamp(1.4rem, 1.2rem + 0.8vw, 2rem) 1.6rem; font-size: 0.93rem; line-height: 2.2; color: var(--ink-soft); }
.greet-body p + p { margin-top: 1.1em; }
@media (max-width: 640px) {
  .greet-head { grid-template-columns: 1fr; }
  .greet-photo { min-height: 240px; }
}

/* --- _17 写真バンド（実写真2枚+オーバーレイ見出し） --- */
.photo-band { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-card); margin-bottom: 2rem; }
.photo-band .band-photos { display: grid; grid-template-columns: 1fr 1fr; min-height: clamp(240px, 32vw, 340px); }
.photo-band img { width: 100%; height: 100%; object-fit: cover; object-position: center 18%; }
.photo-band::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20, 38, 63, 0.14) 0%, rgba(20, 38, 63, 0.46) 100%);
}
.photo-band .band-title {
  position: absolute; inset: 0; z-index: 1;
  display: grid; place-content: center; text-align: center; color: #fff;
}
.band-title .en { display: block; font-size: 0.85rem; font-weight: 500; letter-spacing: 0.32em; padding-left: 0.32em; }
.band-title .ja {
  display: block; margin-top: 0.8rem;
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(1.7rem, 1.4rem + 1.4vw, 2.5rem);
  letter-spacing: 0.4em; padding-left: 0.4em; /* 字間はCSSのみ */
}

/* --- _12 ニュースカード（サムネ付き） --- */
.news-item { display: grid; grid-template-columns: 200px 1fr auto; gap: 1.1rem 1.6rem; align-items: center; }
.news-thumb {
  display: block; width: 100%;
  aspect-ratio: 16 / 10; border-radius: 10px; overflow: hidden;
  object-fit: cover;
  background: #eef4fd; /* 線画SVGサムネ（読み込み前の下地） */
}
.news-main { min-width: 0; }
.news-head-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 1.2rem; }
.news-title { flex-basis: auto; margin-top: 0.5rem; }
.news-body { margin-top: 0.35rem; font-size: 0.88rem; color: var(--ink-soft); line-height: 2; }
.news-chevron { color: var(--primary); font-size: 1.2rem; }
@media (max-width: 640px) {
  .news-item { grid-template-columns: 96px 1fr; }
  .news-chevron { display: none; }
}

/* --- _18 採用ヒーロー（左テキスト+右円形ビジュアル）と丸アイコン --- */
.split-hero { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); align-items: center; gap: clamp(1.5rem, 3vw, 3.5rem); }
@media (max-width: 820px) { .split-hero { grid-template-columns: 1fr; } }
.dot-sphere {
  justify-self: center;
  width: clamp(220px, 26vw, 330px); aspect-ratio: 1; border-radius: 50%;
  display: grid; place-content: center; text-align: center; gap: 0.6rem;
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, 0.9), transparent 42%),
    radial-gradient(1.5px 1.5px at 24% 38%, #7fa8ef 98%, transparent), radial-gradient(1.5px 1.5px at 58% 22%, #9dbbff 98%, transparent),
    radial-gradient(1.5px 1.5px at 72% 52%, #7fa8ef 98%, transparent), radial-gradient(1.5px 1.5px at 38% 68%, #9dbbff 98%, transparent),
    radial-gradient(1.5px 1.5px at 62% 78%, #7fa8ef 98%, transparent), radial-gradient(1.5px 1.5px at 46% 46%, #6f9ae8 98%, transparent),
    radial-gradient(circle at 50% 55%, #eaf2fb 0%, #f6fafe 70%);
  box-shadow: var(--shadow-card);
}
.dot-sphere a { font-weight: 500; letter-spacing: 0.1em; }
.icon-circle { width: 84px; height: 84px; border-radius: 50%; background: var(--primary-soft); display: grid; place-items: center; margin-bottom: 1rem; color: var(--primary); }

/* --- _19/_20 フォーム: 2カラム・アウトラインボタン・fieldset統一 --- */
.form fieldset { border: 0; margin: 0 0 1.5rem; padding: 0; min-width: 0; }
.form legend { display: block; font-size: 0.9rem; font-weight: 500; letter-spacing: 0.06em; margin-bottom: 0.5em; padding: 0; }
.form--two { max-width: 58rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0 2.2rem; }
.form--two .span-2 { grid-column: 1 / -1; }
@media (max-width: 760px) { .form--two { grid-template-columns: 1fr; } }
.btn-submit {
  background: #fff; color: var(--primary-deep);
  border: 1.5px solid var(--primary); border-radius: 10px;
  box-shadow: none;
}
.btn-submit:hover { background: var(--primary-soft); color: var(--primary-deep); transform: none; }
.submit-row { text-align: center; margin-top: 0.8rem; }

/* --- _20 CONTACT センター見出し --- */
.contact-head { text-align: center; }
.contact-head .en-title {
  display: block; font-family: var(--font-serif); font-weight: 600;
  color: var(--primary); font-size: clamp(1.6rem, 1.35rem + 1.2vw, 2.2rem);
  letter-spacing: 0.4em; padding-left: 0.4em;
}
.contact-head .head-rule { width: 64px; height: 2px; background: var(--primary); border: 0; margin: 1.1rem auto; }
.contact-head .page-title { font-size: 1.05rem; font-family: var(--font-sans); font-weight: 500; letter-spacing: 0.22em; color: var(--primary); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-tint);
  border-top: 1px solid var(--line);
  padding: clamp(3rem, 2.5rem + 2vw, 4.5rem) 0 2rem;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: clamp(1.75rem, 3vw, 3rem);
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
}
.footer-brand address {
  font-style: normal;
  margin-top: 1rem;
  color: var(--ink-soft);
  font-size: 0.86rem;
  line-height: 2.05;
}
.footer-head {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.9rem;
}
.footer-nav li + li { margin-top: 0.5em; }
.footer-nav a { color: var(--ink-soft); text-decoration: none; }
.footer-nav a:hover { color: var(--primary-deep); text-decoration: underline; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: center;
  margin-top: clamp(2.5rem, 2rem + 2vw, 3.75rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--ink-meta);
  font-size: 0.8rem;
}
.footer-bottom a { color: var(--ink-meta); }

/* ---------- Page hero（下層ページ共通） ---------- */
.page-hero {
  padding: calc(76px + clamp(3.5rem, 3rem + 3vw, 6rem)) 0 clamp(3rem, 2.5rem + 2.5vw, 5rem);
  /* 上部だけ淡くフェードし下部は透明（背後の流れ場を見せる）。矩形画像は撤去 */
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.85) 0%, rgba(246, 250, 254, 0.4) 55%, transparent 100%);
}
/* ヒーロー直後のセクションは上余白を詰める（ヒーロー下余白との二重取り解消） */
.page-hero + .section { padding-top: clamp(0.5rem, 0.2rem + 1vw, 1.5rem); }

/* --- About: 16:9 写真ヒーロー（最上部・固定ヘッダー下から） --- */
.about-hero { padding-top: 76px; }
.about-hero-media { position: relative; }
.about-hero-media img {
  width: 100%; aspect-ratio: 16 / 9; max-height: 62vh;
  object-fit: cover; object-position: center 42%; display: block;
}
.about-hero-media::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(12,22,44,0.40) 0%, rgba(12,22,44,0.30) 50%, rgba(12,22,44,0.46) 100%);
}
.about-hero-inner {
  position: absolute; inset: 0; z-index: 1;
  display: grid; place-content: center; align-content: center;
  text-align: center; color: #fff; padding: 0 1.5rem;
}
.about-hero-inner .eyebrow { color: rgba(255,255,255,0.92); }
.about-hero-title {
  margin-top: 0.5rem; color: #fff;
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(2rem, 1.5rem + 3vw, 3.4rem); letter-spacing: 0.2em; line-height: 1.4;
}
.about-intro { padding-top: clamp(1.6rem, 1rem + 2vw, 3rem); }
.page-title {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.8rem, 1.4rem + 2vw, 2.8rem);
  letter-spacing: 0.08em;
  line-height: 1.5;
}
.breadcrumb { font-size: 0.8rem; color: var(--ink-meta); margin-bottom: 1.4rem; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 0.5em; list-style: none; margin: 0; padding: 0; }
.breadcrumb li + li::before { content: "/"; margin-right: 0.5em; color: var(--line); }
.breadcrumb a { color: var(--ink-meta); text-decoration: none; }
.breadcrumb a:hover { color: var(--primary); text-decoration: underline; }

/* ---------- Prose（記事・本文ページ） ---------- */
.prose { max-width: var(--w-text); }
.prose > * + * { margin-top: 1.4em; }
.prose h2 {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(1.3rem, 1.15rem + 0.8vw, 1.7rem);
  letter-spacing: 0.06em;
  line-height: 1.6;
  margin-top: 2.6em;
  padding-left: 0.8em;
  border-left: 3px solid var(--primary);
}
.prose h3 { font-weight: 600; font-size: 1.08em; margin-top: 2em; }
.prose ul { padding-left: 1.4em; }
.prose li + li { margin-top: 0.4em; }

/* ---------- Reveal animation（transform/opacityのみ）
   注意: 非表示開始は html.js が付いた時だけ（JS無効・クローラ環境では常に可視＝P3） ---------- */
html.js .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
html.js .reveal.is-visible { opacity: 1; transform: none; }
html.js .reveal[data-delay="1"] { transition-delay: 0.08s; }
html.js .reveal[data-delay="2"] { transition-delay: 0.16s; }
html.js .reveal[data-delay="3"] { transition-delay: 0.24s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-cue::after { animation: none; }
  *,
  *::before,
  *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}