/* ================================================================
   chem-atlas-new.css — 新デザインの共通CSS
   使うページ: academy.html / about.html / story.html(<body class="acd-page">)
   - クラス名はすべて acd- で始める(academy で始めた接頭辞をそのまま使う)
   - 要素セレクタは .acd-page の中だけに効かせる
   - 旧デザインの style.css などには依存しない。ほかのページでは読み込まない
   - ページ固有のスタイルは css/academy-page.css などに置き、このファイルの後に読み込む
   ================================================================ */
/* ---------- トークン ---------- */
.acd-page {
  --acd-navy: #0d2137;
  --acd-navy-2: #16314f;
  --acd-navy-3: #24476d;
  --acd-ink: #1c2633;
  --acd-text: #2e3946;
  --acd-muted: #5b6776;
  --acd-line: #dde3ea;
  --acd-bg: #ffffff;
  --acd-bg-alt: #f3f5f8;
  --acd-bg-tint: #eaf1f6;
  --acd-accent: #1e7a8c;          /* 見出しラベル・番号(白地で 4.9:1) */
  --acd-accent-soft: #d9ecf0;
  --acd-light-accent: #8fd3df;    /* 濃紺地の上で使う */
  --acd-bad: #a8432f;
  --acd-bad-bg: #fbf1ee;
  --acd-good: #1d6b4f;
  --acd-good-bg: #edf6f1;

  --acd-font-sans: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --acd-font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;

  --acd-gutter: 20px;
  --acd-max: 1120px;
  --acd-narrow: 760px;
  --acd-prose: 40em;
  --acd-section-y: 80px;
  --acd-radius: 6px;
  --acd-header-h: 64px;
  --acd-ease: cubic-bezier(.2, .7, .2, 1);
}

@media (min-width: 768px) {
  .acd-page { --acd-gutter: 40px; --acd-section-y: 112px; }
}
@media (min-width: 1100px) {
  .acd-page { --acd-section-y: 136px; --acd-header-h: 76px; }
}

/* ---------- ベース(.acd-page の中だけ) ---------- */
html:has(.acd-page) { scroll-behavior: smooth; scroll-padding-top: 80px; }
@media (prefers-reduced-motion: reduce) {
  html:has(.acd-page) { scroll-behavior: auto; }
}

.acd-page {
  margin: 0;
  background: var(--acd-bg);
  color: var(--acd-text);
  font-family: var(--acd-font-sans);
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: .03em;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}
@media (min-width: 768px) { .acd-page { font-size: 17px; } }

/* リセットは :where() で詳細度を0にし、acd- のクラスで上書きできるようにする */
:where(.acd-page) *,
:where(.acd-page) *::before,
:where(.acd-page) *::after { box-sizing: border-box; }

:where(.acd-page) :where(h1, h2, h3, p, ul, ol, dl, dd, figure, blockquote) { margin: 0; }
:where(.acd-page) :where(ul, ol) { padding: 0; list-style: none; }
:where(.acd-page) :where(img, svg) { display: block; max-width: 100%; }
:where(.acd-page) a { color: var(--acd-accent); text-underline-offset: .2em; }
:where(.acd-page) a:hover { text-decoration-thickness: 2px; }
:where(.acd-page) strong { color: var(--acd-ink); font-weight: 700; }
:where(.acd-page) :focus-visible { outline: 3px solid var(--acd-accent); outline-offset: 3px; border-radius: 2px; }
:where(.acd-page) small { font-size: .85em; }

.acd-icon { width: 1.15em; height: 1.15em; flex: none; }
.acd-nowrap { white-space: nowrap; }

.acd-br-sp { display: inline; }
.acd-br-pc { display: none; }
@media (min-width: 768px) {
  .acd-br-sp { display: none; }
  .acd-br-pc { display: inline; }
}

.acd-skip {
  position: absolute; left: 8px; top: -60px; z-index: 200;
  padding: 8px 16px; background: var(--acd-navy); color: #fff !important;
  border-radius: var(--acd-radius); text-decoration: none;
}
.acd-skip:focus { top: 8px; }

/* ---------- レイアウト ---------- */
.acd-container {
  width: 100%;
  max-width: calc(var(--acd-max) + var(--acd-gutter) * 2);
  margin: 0 auto;
  padding: 0 var(--acd-gutter);
}
.acd-container--narrow { max-width: calc(var(--acd-narrow) + var(--acd-gutter) * 2); }

.acd-section { padding: var(--acd-section-y) 0; }
.acd-section--alt { background: var(--acd-bg-alt); }

.acd-section__head { margin-bottom: 40px; }
@media (min-width: 768px) { .acd-section__head { margin-bottom: 56px; } }

.acd-split { display: grid; gap: 8px; }
@media (min-width: 960px) {
  .acd-split { grid-template-columns: 5fr 7fr; gap: 64px; align-items: start; }
  .acd-split .acd-section__head { position: sticky; top: calc(var(--acd-header-h) + 32px); margin-bottom: 0; }
}

.acd-center { text-align: center; margin-top: 32px; }

/* ---------- 見出し ---------- */
.acd-eyebrow {
  display: flex; flex-wrap: wrap; align-items: center; gap: 4px 14px;
  margin-bottom: 16px;
  color: var(--acd-ink);
  font-size: .9rem; font-weight: 700; letter-spacing: .08em;
}
.acd-eyebrow span {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--acd-accent);
  font-size: .78rem; letter-spacing: .18em; text-transform: uppercase;
}
.acd-eyebrow span::before {
  content: ""; width: 28px; height: 1px; background: currentColor;
}
.acd-eyebrow--light { color: #fff; }
.acd-eyebrow--light span { color: var(--acd-light-accent); }

.acd-h2 {
  color: var(--acd-navy);
  font-family: var(--acd-font-serif);
  font-size: clamp(1.5rem, 1.1rem + 1.8vw, 2.25rem);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .04em;
}
.acd-h3 {
  color: var(--acd-navy);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.6;
}
/* 日本語の見出しを文節で折り返す(対応ブラウザのみ) */
.acd-h2, .acd-hero__title, .acd-essence__lead, .acd-summary, .acd-cta__title, .acd-question blockquote p {
  word-break: auto-phrase; text-wrap: balance;
}
.acd-prose p, .acd-section__lead, .acd-essence__body, .acd-cta__body p { text-wrap: pretty; }
@media (min-width: 960px) {
  .acd-split .acd-h2 { font-size: clamp(1.5rem, 1rem + 1vw, 1.9rem); }
}
.acd-section__lead { margin-top: 20px; max-width: var(--acd-prose); color: var(--acd-muted); }

.acd-prose { max-width: var(--acd-prose); }
.acd-prose > * + * { margin-top: 1.1em; }

.acd-note { margin-top: 16px; color: var(--acd-muted); font-size: .85rem; line-height: 1.7; }

/* ---------- ボタン・リンク ---------- */
.acd-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 12px 28px;
  border: 1px solid transparent; border-radius: 999px;
  font: inherit; font-size: 1rem; font-weight: 700; letter-spacing: .06em;
  text-decoration: none; cursor: pointer;
  transition: background-color .2s, color .2s, transform .2s var(--acd-ease), box-shadow .2s;
}
.acd-page .acd-btn:hover { text-decoration: none; transform: translateY(-1px); }
.acd-btn .acd-icon { transition: transform .2s var(--acd-ease); }
.acd-btn:hover .acd-icon { transform: translateX(3px); }
.acd-page .acd-btn--primary { background: var(--acd-navy); color: #fff; box-shadow: 0 6px 18px rgba(13, 33, 55, .18); }
.acd-page .acd-btn--primary:hover { background: var(--acd-navy-3); }
.acd-page .acd-btn--light { background: #fff; color: var(--acd-navy); }
.acd-page .acd-btn--light:hover { background: var(--acd-bg-tint); }
.acd-btn--sm { min-height: 42px; padding: 8px 20px; font-size: .9rem; }
.acd-btn--lg { min-height: 60px; padding: 14px 40px; font-size: 1.05rem; }

.acd-page .acd-textlink {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 0;
  color: var(--acd-navy); font-weight: 700; text-decoration: none;
  border-bottom: 1px solid var(--acd-navy);
}
.acd-page .acd-textlink::after { content: "→"; transition: transform .2s var(--acd-ease); }
.acd-page .acd-textlink:hover::after { transform: translateX(3px); }

/* ---------- ヘッダー ---------- */
.acd-header {
  position: fixed; inset: 0 0 auto; z-index: 100;
  height: var(--acd-header-h);
  background: rgba(255, 255, 255, .9);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s;
}
.acd-header.is-scrolled { border-bottom-color: var(--acd-line); box-shadow: 0 2px 14px rgba(13, 33, 55, .06); }
.acd-header__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  height: 100%; max-width: 1440px; margin: 0 auto; padding: 0 var(--acd-gutter);
}
.acd-page .acd-header__logo {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--acd-navy); font-weight: 700; font-size: 1.1rem; letter-spacing: .04em; text-decoration: none;
}
.acd-header__logo img { width: 36px; height: 36px; border-radius: 50%; }

.acd-header__toggle {
  position: relative; width: 44px; height: 44px; padding: 0;
  background: none; border: 0; cursor: pointer;
}
.acd-header__toggle span {
  position: absolute; left: 11px; width: 22px; height: 2px; background: var(--acd-navy);
  transition: transform .25s, opacity .25s;
}
.acd-header__toggle span:nth-child(1) { top: 15px; }
.acd-header__toggle span:nth-child(2) { top: 21px; }
.acd-header__toggle span:nth-child(3) { top: 27px; }
.acd-header__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.acd-header__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.acd-header__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* スマホ・タブレット: 開閉パネル */
.acd-nav {
  position: absolute; top: var(--acd-header-h); left: 0; right: 0;
  max-height: calc(100vh - var(--acd-header-h)); overflow-y: auto;
  padding: 8px var(--acd-gutter) 28px;
  background: #fff;
  border-bottom: 1px solid var(--acd-line);
  box-shadow: 0 16px 30px rgba(13, 33, 55, .1);
  visibility: hidden; opacity: 0; transform: translateY(-8px);
  transition: opacity .2s, transform .2s, visibility 0s .2s;
}
.acd-nav.is-open { visibility: visible; opacity: 1; transform: none; transition: opacity .2s, transform .2s; }
.acd-nav li { border-bottom: 1px solid var(--acd-line); }
.acd-page .acd-nav li a {
  display: block; padding: 14px 4px;
  color: var(--acd-ink); font-weight: 400; text-decoration: none;
}
.acd-page .acd-nav li a[aria-current="page"] { color: var(--acd-accent); font-weight: 700; }
.acd-nav .acd-btn { width: 100%; margin-top: 20px; }

@media (min-width: 1100px) {
  .acd-header__toggle { display: none; }
  .acd-nav {
    position: static; display: flex; align-items: center; gap: 28px;
    max-height: none; overflow: visible; padding: 0;
    background: none; border: 0; box-shadow: none;
    visibility: visible; opacity: 1; transform: none; transition: none;
  }
  .acd-nav ul { display: flex; gap: 24px; }
  .acd-nav li { border: 0; }
  .acd-page .acd-nav li a { position: relative; padding: 6px 0; font-size: .88rem; }
  .acd-page .acd-nav li a::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
    background: currentColor; transform: scaleX(0); transform-origin: left; transition: transform .25s var(--acd-ease);
  }
  .acd-page .acd-nav li a:hover::after,
  .acd-page .acd-nav li a[aria-current="page"]::after { transform: scaleX(1); }
  .acd-nav .acd-btn { width: auto; margin: 0; }
}

/* ---------- ヒーロー ---------- */
.acd-hero {
  position: relative; overflow: hidden;
  display: flex; align-items: center;
  min-height: 100svh;
  padding: calc(var(--acd-header-h) + 56px) 0 112px;
  background:
    linear-gradient(180deg, #fff 0%, var(--acd-bg-tint) 100%);
}
.acd-hero::before {
  /* 方眼紙のような細い線 */
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(13, 33, 55, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 33, 55, .05) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
  pointer-events: none;
}
.acd-hero__orbit {
  position: absolute; right: -40%; top: 50%;
  width: 115vw; max-width: 760px; height: auto;
  color: var(--acd-navy); opacity: .09;
  transform: translateY(-50%);
  pointer-events: none;
}
@media (min-width: 768px) { .acd-hero__orbit { right: -12%; width: 70vw; opacity: .12; } }
@media (min-width: 1100px) { .acd-hero__orbit { right: -4%; width: 52vw; } }

.acd-hero__inner {
  position: relative;
  width: 100%; max-width: calc(var(--acd-max) + var(--acd-gutter) * 2);
  margin: 0 auto; padding: 0 var(--acd-gutter);
}
.acd-hero__label {
  display: inline-block; margin-bottom: 28px;
  padding: 6px 14px;
  border: 1px solid var(--acd-navy); border-radius: 999px;
  color: var(--acd-navy); font-size: .82rem; font-weight: 700; letter-spacing: .1em;
}
.acd-hero__title {
  color: var(--acd-navy);
  font-family: var(--acd-font-serif);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: .04em;
}
.acd-hero__title span { display: block; }
.acd-hero__title span:first-child {
  font-size: clamp(2.6rem, 1.6rem + 5vw, 5rem);
  line-height: 1.2;
  margin-bottom: .3em;
}
.acd-hero__title span:last-child { font-size: clamp(1.35rem, 1rem + 1.8vw, 2.25rem); }
.acd-hero__lead {
  max-width: 38em; margin-top: 32px;
  color: var(--acd-text);
}
.acd-hero__actions {
  display: flex; flex-wrap: wrap; align-items: center; gap: 20px 32px;
  margin-top: 40px;
}
.acd-page .acd-hero__scroll {
  position: absolute; left: 50%; bottom: 24px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--acd-muted); font-size: .7rem; letter-spacing: .2em; text-transform: uppercase; text-decoration: none;
  transform: translateX(-50%);
}
.acd-hero__scroll::after {
  content: ""; width: 1px; height: 48px;
  background: linear-gradient(var(--acd-navy) 50%, rgba(13, 33, 55, .15) 50%);
  background-size: 1px 200%;
  animation: acd-scroll 2.4s var(--acd-ease) infinite;
}
@keyframes acd-scroll {
  from { background-position: 0 100%; }
  to   { background-position: 0 -100%; }
}

/* ---------- 折りたたみ ---------- */
.acd-details {
  margin-top: 40px;
  background: #fff;
  border: 1px solid var(--acd-line);
  border-radius: var(--acd-radius);
}
.acd-details > summary {
  position: relative;
  padding: 18px 56px 18px 24px;
  color: var(--acd-navy); font-weight: 700;
  cursor: pointer; list-style: none;
}
.acd-details > summary::-webkit-details-marker { display: none; }
.acd-details > summary::after,
.acd-qa > summary::after {
  content: ""; position: absolute; right: 24px; top: 50%;
  width: 10px; height: 10px;
  border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
  transform: translateY(-70%) rotate(45deg);
  transition: transform .2s;
}
.acd-details[open] > summary::after,
.acd-qa[open] > summary::after { transform: translateY(-30%) rotate(-135deg); }
.acd-details__body { padding: 4px 24px 28px; }
.acd-details__body > p + p { margin-top: 1em; }
.acd-details--plain { margin-top: 24px; background: var(--acd-bg-alt); border: 0; }
.acd-details--plain > summary { padding: 14px 48px 14px 20px; font-size: .95rem; }
.acd-details--plain .acd-details__body { padding: 0 20px 20px; }

/* タグ(小さなラベルの並び) */
.acd-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 24px; }
.acd-tags li {
  padding: 4px 12px;
  border: 1px solid var(--acd-accent-soft); border-radius: 999px;
  background: var(--acd-bg-tint);
  color: var(--acd-navy); font-size: .82rem; font-weight: 400;
}

/* ---------- 最終CTA ---------- */
.acd-cta {
  position: relative; overflow: hidden;
  padding: var(--acd-section-y) 0;
  background:
    radial-gradient(ellipse at 85% 0%, rgba(143, 211, 223, .16), transparent 55%),
    linear-gradient(160deg, var(--acd-navy) 0%, var(--acd-navy-2) 100%);
  color: rgba(255, 255, 255, .88);
  text-align: center;
}
.acd-cta .acd-eyebrow { justify-content: center; }
.acd-cta__title {
  color: #fff;
  font-family: var(--acd-font-serif);
  font-size: clamp(1.8rem, 1.2rem + 2.6vw, 3rem);
  font-weight: 700; line-height: 1.45;
}
.acd-cta__sub { margin-top: 16px; color: #fff; font-size: 1.05rem; font-weight: 400; }
.acd-cta__body { max-width: 36em; margin: 32px auto 0; text-align: left; }
.acd-cta__body p + p { margin-top: 1em; }
@media (min-width: 768px) { .acd-cta__body { text-align: center; } }
.acd-page .acd-cta strong { color: #fff; }
.acd-cta__badge {
  display: inline-block; margin: 48px 0 20px;
  padding: 4px 16px;
  border: 1px solid rgba(255, 255, 255, .4); border-radius: 999px;
  color: #fff; font-size: .85rem; font-weight: 700; letter-spacing: .1em;
}
.acd-cta .acd-btn { display: flex; width: fit-content; margin: 0 auto; }
.acd-form {
  margin: 0 auto; max-width: 680px;
  background: #fff; border-radius: var(--acd-radius); overflow: hidden;
}
.acd-form iframe { display: block; width: 100%; height: 1400px; border: 0; }
.acd-cta__note { max-width: 36em; margin: 20px auto 0; font-size: .88rem; }
.acd-page .acd-cta a:not(.acd-btn) { color: #fff; }

.acd-social { margin-top: 56px; padding-top: 32px; border-top: 1px solid rgba(255, 255, 255, .15); }
.acd-social p { font-size: .85rem; letter-spacing: .08em; }
.acd-social ul { display: flex; justify-content: center; gap: 14px; margin-top: 14px; }
.acd-page .acd-social a {
  display: grid; place-items: center;
  width: 48px; height: 48px;
  border: 1px solid rgba(255, 255, 255, .35); border-radius: 50%;
  transition: background-color .2s, color .2s;
}
.acd-page .acd-social a:hover { background: #fff; color: var(--acd-navy); }
.acd-social .acd-icon { width: 22px; height: 22px; }

/* ================================================================
   about / story で追加した部品(academy と同じトークン・見た目で作る)
   ================================================================ */

/* ---------- ページ見出し(ヒーローより低い版) ---------- */
.acd-pagehero {
  position: relative; overflow: hidden;
  padding: calc(var(--acd-header-h) + 56px) 0 72px;
  background: linear-gradient(180deg, #fff 0%, var(--acd-bg-tint) 100%);
}
@media (min-width: 768px) { .acd-pagehero { padding: calc(var(--acd-header-h) + 88px) 0 104px; } }
.acd-pagehero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(13, 33, 55, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 33, 55, .05) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
  mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
  pointer-events: none;
}
.acd-pagehero .acd-container { position: relative; }
.acd-pagehero__title {
  color: var(--acd-navy);
  font-family: var(--acd-font-serif);
  font-size: clamp(1.9rem, 1.2rem + 3vw, 3.2rem);
  font-weight: 700; line-height: 1.4; letter-spacing: .04em;
  word-break: auto-phrase; text-wrap: balance;
}
.acd-pagehero__sub { margin-top: 14px; color: var(--acd-muted); font-size: .95rem; letter-spacing: .06em; }
.acd-pagehero__lead {
  max-width: var(--acd-prose); margin-top: 28px;
  padding-left: 20px; border-left: 2px solid var(--acd-accent);
  color: var(--acd-ink); text-wrap: pretty;
}
.acd-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.acd-chips li {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  background: #fff; border: 1px solid var(--acd-line); border-radius: 999px;
  color: var(--acd-navy); font-size: .85rem;
}
.acd-chips .acd-icon { color: var(--acd-accent); }

/* プロフィール型(写真+肩書き) */
.acd-profile { display: grid; gap: 32px; justify-items: start; }
@media (min-width: 900px) {
  .acd-profile { grid-template-columns: auto 1fr; gap: 72px; align-items: center; }
}
.acd-profile__name {
  color: var(--acd-navy);
  font-family: var(--acd-font-serif);
  font-size: clamp(2rem, 1.4rem + 2.6vw, 3.2rem);
  font-weight: 700; line-height: 1.3; letter-spacing: .12em;
}
.acd-profile__kana { display: block; margin-top: 8px; color: var(--acd-muted); font-family: var(--acd-font-sans); font-size: .9rem; font-weight: 400; letter-spacing: .2em; }
.acd-profile__roles { margin-top: 24px; display: grid; gap: 4px; }
.acd-profile__roles li { color: var(--acd-ink); }
.acd-profile__roles li + li { color: var(--acd-muted); font-size: .92rem; }

/* ---------- ポートレート(運営者の写真。3ページとも円形) ---------- */
.acd-portrait {
  display: block;
  width: 180px; height: 180px;
  border-radius: 50%;
  object-fit: cover; object-position: 50% 30%;
  border: 1px solid var(--acd-line);
  background: var(--acd-bg-alt);
}
.acd-portrait--lg { width: 180px; height: 180px; box-shadow: 0 0 0 10px #fff, 0 0 0 11px var(--acd-line); }
@media (min-width: 900px) { .acd-portrait--lg { width: 320px; height: 320px; } }

/* ---------- 引用(キャッチ) ---------- */
.acd-quote {
  padding: var(--acd-section-y) 0;
  background: var(--acd-navy);
  color: #fff;
}
.acd-quote blockquote { position: relative; padding-top: 48px; }
.acd-quote blockquote::before {
  content: "“"; position: absolute; top: -12px; left: -4px;
  color: var(--acd-light-accent);
  font-family: var(--acd-font-serif); font-size: 5rem; line-height: 1;
}
.acd-quote blockquote p {
  font-family: var(--acd-font-serif);
  font-size: clamp(1.35rem, 1rem + 1.6vw, 2.1rem);
  font-weight: 700; line-height: 1.75;
  word-break: auto-phrase; text-wrap: balance;
}
.acd-quote blockquote p + p { margin-top: .6em; color: rgba(255, 255, 255, .88); font-size: clamp(1.05rem, .9rem + .7vw, 1.4rem); }
.acd-quote figcaption { margin-top: 28px; color: var(--acd-light-accent); font-size: .9rem; letter-spacing: .1em; }

/* ---------- 年表(縦のタイムライン) ---------- */
.acd-timeline { position: relative; max-width: var(--acd-narrow); }
.acd-timeline::before {
  content: ""; position: absolute; left: 7px; top: 10px; bottom: 10px;
  width: 1px; background: var(--acd-line);
}
.acd-timeline li { position: relative; padding: 0 0 32px 40px; }
.acd-timeline li:last-child { padding-bottom: 0; }
.acd-timeline li::before {
  content: ""; position: absolute; left: 0; top: 7px;
  width: 15px; height: 15px; border-radius: 50%;
  background: #fff; border: 2px solid var(--acd-accent);
}
.acd-timeline li.is-key::before { background: var(--acd-accent); }
.acd-timeline time {
  display: block;
  color: var(--acd-accent);
  font-family: var(--acd-font-serif); font-size: 1.05rem; font-weight: 700; letter-spacing: .06em;
}
.acd-timeline span { display: block; margin-top: 2px; color: var(--acd-ink); }
@media (min-width: 768px) {
  .acd-timeline li { display: grid; grid-template-columns: 9em 1fr; gap: 24px; padding-left: 48px; }
  .acd-timeline span { margin-top: 0; }
}

/* ---------- カード(並べる情報) ---------- */
.acd-cards { display: grid; gap: 20px; margin-top: 32px; }
@media (min-width: 768px) { .acd-cards { grid-template-columns: repeat(2, 1fr); gap: 24px; } }
.acd-card {
  padding: 28px 24px;
  background: #fff;
  border: 1px solid var(--acd-line);
  border-top: 3px solid var(--acd-navy);
  border-radius: var(--acd-radius);
}
.acd-card .acd-h3 { margin-bottom: 12px; }
.acd-card .acd-tags { margin: 0; }

/* ---------- 記事(長文) ---------- */
.acd-article { max-width: var(--acd-prose); margin: 0 auto; }
.acd-article__block + .acd-article__block { margin-top: 72px; }
@media (min-width: 768px) { .acd-article__block + .acd-article__block { margin-top: 96px; } }
.acd-article .acd-h2 { margin-bottom: 28px; font-size: clamp(1.4rem, 1.1rem + 1.2vw, 1.85rem); }
.acd-article p { text-wrap: pretty; }
.acd-article p + p { margin-top: 1.2em; }
.acd-article__h2-sub { display: block; margin-bottom: 6px; color: var(--acd-accent); font-family: var(--acd-font-sans); font-size: .8rem; letter-spacing: .18em; }

/* 番号付きの小見出し */
.acd-numbered { display: grid; gap: 40px; counter-reset: acd-num; }
.acd-numbered > li { counter-increment: acd-num; padding-top: 28px; border-top: 1px solid var(--acd-line); }
.acd-numbered h3 {
  display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: baseline;
  margin-bottom: 16px;
  color: var(--acd-navy); font-size: 1.15rem; font-weight: 700; line-height: 1.6;
}
.acd-numbered h3::before {
  content: counter(acd-num, decimal-leading-zero);
  color: var(--acd-accent);
  font-family: var(--acd-font-serif); font-size: 1.9rem; line-height: 1;
}

/* 強調・ラベル */
.acd-mark { color: var(--acd-ink); font-weight: 700; background: linear-gradient(transparent 64%, var(--acd-accent-soft) 64%); }
.acd-pill {
  display: inline-block; margin: 0 2px; padding: 0 10px;
  border: 1px solid var(--acd-accent); border-radius: 999px;
  color: var(--acd-accent); font-size: .82em; font-weight: 700; letter-spacing: .06em; line-height: 1.7;
  white-space: nowrap;
}

/* ---------- 案内ブロック(Academy への導線・お問い合わせ) ---------- */
.acd-promo {
  display: grid; gap: 24px;
  padding: 40px 28px;
  background: #fff;
  border: 1px solid var(--acd-line);
  border-radius: var(--acd-radius);
}
@media (min-width: 900px) { .acd-promo { grid-template-columns: auto 1fr auto; gap: 40px; align-items: center; padding: 48px; } }
.acd-promo__icon {
  display: grid; place-items: center;
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--acd-bg-tint); color: var(--acd-accent);
}
.acd-promo__icon .acd-icon { width: 30px; height: 30px; }
.acd-promo__body p + p { margin-top: .4em; }
.acd-promo__title { margin-bottom: 8px; color: var(--acd-navy); font-family: var(--acd-font-serif); font-size: 1.35rem; font-weight: 700; }
.acd-promo + .acd-promo { margin-top: 24px; }
.acd-promo--plain { background: var(--acd-bg-alt); border-color: transparent; }

/* CTA の中でボタンを並べる */
.acd-cta__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-top: 40px; }
.acd-cta__actions .acd-btn { margin: 0; }
.acd-page .acd-cta .acd-btn--ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .5); }
.acd-page .acd-cta .acd-btn--ghost:hover { background: rgba(255, 255, 255, .1); }
.acd-cta__more { margin-top: 32px; }
.acd-cta--compact { padding: 56px 0; }
.acd-cta--compact .acd-social { margin-top: 0; padding-top: 0; border-top: 0; }
.acd-page .acd-btn--outline { background: #fff; color: var(--acd-navy); border-color: var(--acd-navy); }
.acd-page .acd-btn--outline:hover { background: var(--acd-bg-tint); }

/* 本文の中で、締めの数行を強める */
.acd-lead-strong {
  padding: 20px 0 20px 22px;
  border-left: 2px solid var(--acd-accent);
  color: var(--acd-navy); font-weight: 700; line-height: 2;
}
.acd-experience__close {
  margin-top: 40px;
  color: var(--acd-navy); font-family: var(--acd-font-serif);
  font-size: clamp(1.1rem, .95rem + .7vw, 1.35rem); font-weight: 700; text-align: center;
  word-break: auto-phrase; text-wrap: balance;
}
.acd-page .acd-cta .acd-textlink { color: #fff; border-bottom-color: rgba(255, 255, 255, .6); }
.acd-page .acd-cta__more .acd-textlink { display: inline; line-height: 2.2; }

/* ---------- フッター ---------- */
.acd-page .site-footer { background: #091829; color: rgba(255, 255, 255, .75); }
.acd-footer {
  max-width: calc(var(--acd-max) + var(--acd-gutter) * 2);
  margin: 0 auto; padding: 48px var(--acd-gutter) 32px;
  text-align: center; font-size: .85rem;
}
.acd-footer__logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 1rem; }
.acd-footer__logo img { border-radius: 50%; }
.acd-page .footer-nav {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 24px;
  margin: 24px 0;
}
.acd-page .footer-nav a { display: inline-block; padding: 6px 0; color: rgba(255, 255, 255, .85); text-decoration: none; }
.acd-page .footer-nav a:hover { color: #fff; text-decoration: underline; }
.acd-footer__note { margin-bottom: 8px; font-size: .78rem; color: rgba(255, 255, 255, .6); }

/* ---------- フェードイン(JS があり、動きを減らす設定でないときだけ) ---------- */
.acd-js-reveal .acd-reveal {
  opacity: 0; transform: translateY(16px);
  transition: opacity .7s var(--acd-ease), transform .7s var(--acd-ease);
}
.acd-js-reveal .acd-reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .acd-page *,
  .acd-page *::before,
  .acd-page *::after { animation: none !important; transition: none !important; }
}