/* =========================================================================
   クラリアホールディングス コーポレートサイト — base.css（2026-09-05 改訂）
   natural-web-page 適用版。階層は文字サイズ・太さ・余白で作る。
   消したもの: 英字eyebrow・色のアクセント線・一律の影と浮くホバー・fade-in・
             ヒーローの装飾図形・3列均等カード・数字カウンター・CTA大判カード
   足したもの: split（画像＋文章）・figure・facts（数えられる事実）・list-plain・quote
   トークン（色・書体・余白）は 2026-07-12 もっち確定値を維持。
   ========================================================================= */

/* ---- デザイントークン ---------------------------------------------------- */
:root {
  --color-accent: #285044;        /* 千歳緑寄りの深緑。ブランドカラー（もっち確定 2026-07-12） */
  --color-accent-deep: #18382f;   /* hover／フッター用の深い緑 */
  --color-ink: #2f3334;           /* 本文＝炭色。本文は薄くしない */
  --color-ink-soft: #626767;      /* 補助テキスト（対白 5.6:1） */
  --color-bg: #f5f7f7;            /* 地色 */
  --color-bg-alt: #fbfcfa;        /* 白面 */
  --color-bg-tint: #edf1f0;       /* 淡色面 */
  --color-line: #d5dcdc;          /* 罫線 */
  --color-border-ui: #7d878a;     /* フォーム等のUI部品の境界（WCAG 1.4.11） */
  --color-accent-tint: #e8f0ec;   /* 緑のごく薄い面 */

  --font-ja: "Noto Sans JP", -apple-system, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-en: "Roboto", var(--font-ja);
  --font-serif: "Noto Serif JP", "Yu Mincho", serif;

  --container: 1120px;
  --container-narrow: 820px;
  --space-section: clamp(64px, 9vw, 120px);
  --space-block: clamp(32px, 4.5vw, 56px);
  --gutter: clamp(20px, 5vw, 44px);

  --radius: 2px;
  --ease: cubic-bezier(0.2, 0.62, 0.32, 1);
  --dur: 0.25s;
  --header-h: 76px;
}

/* ---- リセット ----------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%; scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
}
body {
  margin: 0;
  font-family: var(--font-ja);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.9;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--dur) var(--ease); }
a:hover { color: var(--color-accent); }
main p a, main li a, main td a, main dd a, main label a, main .notice a, main .doc a, main .small a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 0.22em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p, figure, dl, dd, blockquote { margin: 0; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }
strong { font-weight: 700; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 1000;
  background: var(--color-accent); color: var(--color-bg-alt); padding: 10px 18px;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---- レイアウト --------------------------------------------------------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.container--narrow { max-width: var(--container-narrow); }
.section { padding-block: var(--space-section); }
.section--tint { background: var(--color-bg-tint); }
.section--white { background: var(--color-bg-alt); }
.section + .section--white, .section + .section--tint { border-top: 1px solid var(--color-line); }


/* ---- 見出し ------------------------------------------------------------- */
.sec-head { margin-bottom: clamp(24px, 3vw, 36px); }
.sec-head__ja {
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(1.45rem, 2.8vw, 1.95rem); line-height: 1.5;
  letter-spacing: 0.05em; color: var(--color-ink); text-wrap: balance;
}
.sec-head--center { text-align: center; }
.sub-head {
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(1.1rem, 1.8vw, 1.25rem); line-height: 1.6; letter-spacing: 0.04em;
  color: var(--color-ink); margin-top: var(--space-block); margin-bottom: 0.8em;
}
.sub-head:first-child, .sec-head + .sub-head, .split__body > .sub-head:first-child { margin-top: 0; }
.lede { font-size: clamp(1.05rem, 1.5vw, 1.15rem); line-height: 2; color: var(--color-ink); }
.lede + .lede { margin-top: 1.4em; }
.body-text { color: var(--color-ink); }
.body-text + .body-text { margin-top: 1.4em; }
p + p { margin-top: 1.1em; }
.sec-head + p, .sec-head + .lede, .sec-head + .stack { margin-top: 0; }

/* ---- 書き手の声 --------------------------------------------------------- */
.quote { max-width: 42em; margin-block: var(--space-block); }
.quote p { font-family: var(--font-serif); font-size: clamp(1.05rem, 1.6vw, 1.2rem); line-height: 2; color: var(--color-ink); }
.quote cite { display: block; font-style: normal; font-size: 0.92rem; color: var(--color-ink-soft); margin-top: 1.1em; }
.message__sign { font-family: var(--font-serif); font-size: 1.02rem; letter-spacing: 0.04em; margin-top: 1.6em; }

/* ---- ボタン ------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6em;
  font-size: 0.95rem; letter-spacing: 0.04em; font-weight: 500;
  min-height: 48px; padding: 0.8em 1.7em; border: 1px solid var(--color-accent); border-radius: var(--radius);
  color: var(--color-accent); background: transparent; text-decoration: none;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.btn::after { content: "→"; }
.btn:hover { background: var(--color-accent); color: var(--color-bg-alt); }
.btn--fill { background: var(--color-accent); color: var(--color-bg-alt); }
.btn--fill:hover { background: var(--color-accent-deep); border-color: var(--color-accent-deep); }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.8em 1em; margin-top: 1.6em; }
p > .btn, .btn-row .btn { text-decoration: none; }

/* ---- ヘッダー ----------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h); display: flex; align-items: center;
  background: rgba(245, 247, 247, 0.94);
  border-bottom: 1px solid var(--color-line);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.brand { display: flex; align-items: center; gap: 0.7em; }
.brand::before {
  content: ""; flex: 0 0 30px; width: 30px; height: 30px;
  background-color: var(--color-accent);
  -webkit-mask: url("../img/claria-kamon.svg") center / contain no-repeat;
  mask: url("../img/claria-kamon.svg") center / contain no-repeat;
}
.brand__mark { font-family: var(--font-en); font-weight: 700; letter-spacing: 0.16em; font-size: 1rem; color: var(--color-accent); }
.brand__ja { padding-left: 0.1em; font-size: 0.72rem; letter-spacing: 0.1em; color: var(--color-ink-soft); }
.gnav { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 32px); }
.gnav__link { font-size: 0.9rem; letter-spacing: 0.04em; padding-block: 0.5em; border-bottom: 1px solid transparent; }
.gnav__link:hover, .gnav__link[aria-current="page"] { color: var(--color-accent); border-bottom-color: var(--color-accent); }
.lang-toggle { display: flex; align-items: center; gap: 0.3em; font-family: var(--font-en); font-size: 0.8rem; letter-spacing: 0.04em; }
.lang-toggle a { color: var(--color-ink-soft); padding: 0.2em 0.45em; min-width: 24px; min-height: 24px; display: inline-flex; align-items: center; justify-content: center; }
.lang-toggle a[aria-current="true"] { color: var(--color-accent); font-weight: 700; }
.lang-toggle span { color: var(--color-line); }
.nav-toggle { display: none; width: 40px; height: 40px; border: 0; background: transparent; position: relative; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 8px; width: 24px; height: 1.5px; background: var(--color-ink);
}
.nav-toggle span { top: 19px; }
.nav-toggle span::before { top: -7px; } .nav-toggle span::after { top: 7px; }

/* ---- ヒーロー（トップ。装飾なし） --------------------------------------- */
.hero { padding-block: clamp(64px, 11vw, 140px) clamp(48px, 8vw, 110px); background: var(--color-bg); }
.hero__mark {
  display: block; width: 56px; height: 56px; margin-bottom: 2em;
  background-color: var(--color-accent);
  -webkit-mask: url("../img/claria-kamon.svg") center / contain no-repeat;
  mask: url("../img/claria-kamon.svg") center / contain no-repeat;
}
.hero__lead {
  font-family: var(--font-serif); font-weight: 600;
  font-size: clamp(1.9rem, 4.4vw, 3rem); line-height: 1.5; letter-spacing: 0.06em; color: var(--color-ink); text-wrap: balance;
  max-width: 22em;
}
.hero__lead .accent { color: var(--color-accent); }
.hero__text { max-width: 38em; margin-top: 1.8em; font-size: clamp(1.02rem, 1.4vw, 1.1rem); line-height: 2; }
.hero .btn-row { margin-top: 2.2em; }

/* ---- 下層ページ見出し --------------------------------------------------- */
.page-hero { padding-block: clamp(48px, 7vw, 88px) clamp(28px, 4vw, 44px); background: var(--color-bg-tint); border-bottom: 1px solid var(--color-line); }
.page-hero__ja { font-family: var(--font-serif); font-weight: 600; font-size: clamp(1.7rem, 3.6vw, 2.4rem); letter-spacing: 0.06em; line-height: 1.4; }
.breadcrumb { font-size: 0.82rem; letter-spacing: 0.02em; color: var(--color-ink-soft); margin-top: 1em; }
.breadcrumb a { color: var(--color-ink-soft); text-decoration: none; min-height: 24px; display: inline-block; padding-block: 0.2em; }
.breadcrumb a:hover { color: var(--color-accent); }

/* ---- 画像＋文章（左右） ------------------------------------------------- */
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
.split--rev .split__media { order: 2; }
.split__media { margin: 0; min-width: 0; }
.split__media img, .figure img { width: 100%; border: 1px solid var(--color-line); background: var(--color-bg-alt); }
.split__media figcaption, .figure__cap { font-size: 0.86rem; color: var(--color-ink-soft); margin-top: 0.7em; line-height: 1.7; }
.split__body { min-width: 0; }
.split + .split { margin-top: var(--space-block); }
.figure { margin: 0; }
.figure + p, .figure + .stack { margin-top: 1.6em; }

/* ---- 数えられる事実 ----------------------------------------------------- */
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 0 clamp(20px, 3vw, 40px); }
.facts > div { border-top: 1px solid var(--color-line); padding-top: 0.9em; padding-bottom: 0.9em; }
.facts dt { font-size: 0.86rem; color: var(--color-ink-soft); }
.facts dd { font-family: var(--font-serif); font-size: clamp(1.25rem, 2vw, 1.5rem); font-variant-numeric: tabular-nums; color: var(--color-ink); margin-top: 0.15em; }

/* ---- 一覧（箱で囲わない） ----------------------------------------------- */
.list-plain { border-top: 1px solid var(--color-line); }
.list-plain > li { padding: 1.25em 0.2em; border-bottom: 1px solid var(--color-line); }
.list-plain > li > b { display: block; font-family: var(--font-serif); font-weight: 600; font-size: 1.08rem; letter-spacing: 0.03em; margin-bottom: 0.3em; }
.list-plain > li > a { margin-left: 0.6em; white-space: nowrap; }

/* ---- 表 ----------------------------------------------------------------- */
.info-table { width: 100%; border-collapse: collapse; border-top: 1px solid var(--color-line); }
.info-table th, .info-table td { text-align: left; padding: 1.1em 0.6em; border-bottom: 1px solid var(--color-line); vertical-align: top; font-weight: 400; }
.info-table th { width: 28%; color: var(--color-ink-soft); font-size: 0.9rem; letter-spacing: 0.04em; }
.info-table td { font-size: 0.98rem; }
.info-table td, .footer-meta__addr { overflow-wrap: anywhere; }

/* ---- 年表 --------------------------------------------------------------- */
.timeline { border-top: 1px solid var(--color-line); }
.timeline__item { display: grid; grid-template-columns: 6em 1fr; gap: 1em; padding: 1em 0.2em; border-bottom: 1px solid var(--color-line); }
.timeline__year { font-family: var(--font-en); font-weight: 500; color: var(--color-ink-soft); letter-spacing: 0.04em; font-variant-numeric: tabular-nums; }
.timeline__text { font-size: 0.98rem; }

/* ---- ニュース ----------------------------------------------------------- */
.news-list { border-top: 1px solid var(--color-line); }
.news-item { display: grid; grid-template-columns: 8em 1fr; gap: 1em; align-items: baseline; padding: 1.2em 0.4em; border-bottom: 1px solid var(--color-line); }
.news-item__date { font-family: var(--font-en); font-size: 0.88rem; color: var(--color-ink-soft); font-variant-numeric: tabular-nums; }
.news-item__tag { display: none; }
.news-item__title { font-size: 0.98rem; }
a.news-item:hover .news-item__title { color: var(--color-accent); text-decoration: underline; text-underline-offset: 0.22em; }

/* ---- 順序のある箇条 ----------------------------------------------------- */
.num-list { counter-reset: numlist; border-top: 1px solid var(--color-line); }
.num-list__item { counter-increment: numlist; display: grid; grid-template-columns: 2.6em 1fr; gap: 0 1em; padding: 1.4em 0.2em; border-bottom: 1px solid var(--color-line); }
.num-list__item::before { content: counter(numlist) "."; font-family: var(--font-serif); font-size: 1.05rem; color: var(--color-ink-soft); padding-top: 0.15em; }
.num-list__title { font-family: var(--font-serif); font-weight: 600; font-size: 1.08rem; letter-spacing: 0.03em; color: var(--color-ink); }
.num-list__body { font-size: 0.98rem; color: var(--color-ink); margin-top: 0.5em; }

/* ---- FAQ ---------------------------------------------------------------- */
.faq { border-top: 1px solid var(--color-line); }
.faq__item { border-bottom: 1px solid var(--color-line); }
.faq__q { display: grid; grid-template-columns: 1fr 1.4em; align-items: start; gap: 0.5em; padding: 1.2em 0.3em; cursor: pointer; font-size: 1rem; list-style: none; }
.faq__q::-webkit-details-marker { display: none; }
.faq__q::after { content: "＋"; color: var(--color-ink-soft); justify-self: end; }
.faq__item[open] .faq__q::after { content: "－"; }
.faq__q:hover { color: var(--color-accent); }
.faq__a { padding: 0 0.3em 1.4em; font-size: 0.98rem; color: var(--color-ink); }

/* ---- 注意書き・方針文書 ------------------------------------------------- */
.notice { border: 1px solid var(--color-line); background: var(--color-bg-alt); padding: clamp(18px, 2.4vw, 28px); border-radius: var(--radius); }
.notice__title { font-weight: 700; font-size: 0.98rem; margin-bottom: 0.6em; }
.notice p { font-size: 0.94rem; color: var(--color-ink); }
.notice p + p { margin-top: 0.8em; }
.doc { max-width: var(--container-narrow); }
.doc h2 { font-family: var(--font-serif); font-weight: 600; font-size: 1.18rem; letter-spacing: 0.04em; color: var(--color-ink); margin-top: 2.4em; padding-bottom: 0.6em; border-bottom: 1px solid var(--color-line); }
.doc h2:first-child { margin-top: 0; }
.doc h3 { font-size: 1.02rem; font-weight: 700; letter-spacing: 0.03em; margin-top: 1.8em; }
.doc p { margin-top: 1.1em; font-size: 0.98rem; }
.doc ol, .doc ul { margin-top: 1.1em; }
.doc ol { counter-reset: docol; }
.doc ol > li { counter-increment: docol; position: relative; padding-left: 2.2em; margin-top: 0.7em; font-size: 0.98rem; }
.doc ol > li::before { content: "(" counter(docol) ")"; position: absolute; left: 0; color: var(--color-ink-soft); font-family: var(--font-en); font-size: 0.9rem; }
.doc ul > li { position: relative; padding-left: 1.3em; margin-top: 0.7em; font-size: 0.98rem; }
.doc ul > li::before { content: "・"; position: absolute; left: 0; color: var(--color-ink-soft); }
.doc__meta { font-size: 0.88rem; color: var(--color-ink-soft); margin-top: 2.6em; padding-top: 1.4em; border-top: 1px solid var(--color-line); }

/* ---- 関連リンク --------------------------------------------------------- */
.rel-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 0 2em; border-top: 1px solid var(--color-line); }
.rel-link { display: flex; align-items: center; justify-content: space-between; gap: 1em; padding: 1em 0.3em; font-size: 0.98rem; text-decoration: none; border-bottom: 1px solid var(--color-line); }
.rel-link::after { content: "→"; color: var(--color-ink-soft); }
.rel-link:hover { color: var(--color-accent); }
a.rel-link { color: var(--color-ink); text-decoration: none; }

/* ---- 外部リンクの明示 --------------------------------------------------- */
.ext::after { content: "↗"; font-size: 0.8em; margin-left: 0.35em; }

/* ---- フォーム ----------------------------------------------------------- */
.form-row { display: flex; flex-direction: column; gap: 0.5em; margin-bottom: 1.4em; }
.form-row label { font-size: 0.92rem; letter-spacing: 0.03em; }
.form-row .req { color: var(--color-accent); font-size: 0.78rem; margin-left: 0.4em; }
.form-row input, .form-row textarea, .form-row select {
  font-family: inherit; font-size: 1rem; color: var(--color-ink);
  padding: 0.9em 1em; border: 1px solid var(--color-border-ui); border-radius: var(--radius); background: var(--color-bg-alt); width: 100%;
}
.form-row input:focus-visible, .form-row textarea:focus-visible, .form-row select:focus-visible {
  border-color: var(--color-accent); outline: 2px solid var(--color-accent); outline-offset: 2px;
}
.form-consent { display: flex; flex-direction: row; align-items: flex-start; gap: 0.6em; cursor: pointer; }
.form-row input[type="checkbox"] { width: 24px; height: 24px; min-width: 24px; min-height: 24px; flex: none; margin: 0; accent-color: var(--color-accent); }
.form-note { font-size: 0.88rem; color: var(--color-ink-soft); }
.form-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.site-footer .form-note { color: rgba(255,255,255,0.7); }
.form-errors { border: 1px solid #a33434; background: #fdf4f4; padding: 1.1em 1.3em; margin-bottom: var(--space-block); border-radius: var(--radius); }
.form-errors h2 { font-size: 1rem; color: #8d2b2b; margin-bottom: 0.5em; font-family: var(--font-ja); font-weight: 700; }
.form-errors li { font-size: 0.94rem; color: #6f2323; padding-left: 1.1em; position: relative; }
.form-errors li::before { content: "・"; position: absolute; left: 0; }

/* ---- サイトマップページ・404 -------------------------------------------- */
.sitemap-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: clamp(26px, 4vw, 52px); }
.sitemap-col h2 { font-family: var(--font-serif); font-weight: 600; font-size: 1.05rem; letter-spacing: 0.04em; padding-bottom: 0.7em; border-bottom: 1px solid var(--color-ink); }
.sitemap-col li { border-bottom: 1px solid var(--color-line); }
.sitemap-col li a { display: block; padding: 0.9em 0.2em; font-size: 0.95rem; }
.sitemap-col li a:hover { color: var(--color-accent); }
.err { min-height: calc(70vh - var(--header-h)); display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: 1.2em; padding-block: var(--space-section); }
.err__code { font-family: var(--font-en); font-size: clamp(3rem, 10vw, 5rem); font-weight: 300; letter-spacing: 0.06em; color: var(--color-ink-soft); line-height: 1; }
.err__ja { font-family: var(--font-serif); font-weight: 600; font-size: clamp(1.1rem, 3vw, 1.4rem); letter-spacing: 0.04em; }
.err__en { font-size: 0.9rem; color: var(--color-ink-soft); }

/* ---- フッター ----------------------------------------------------------- */
.site-footer { background-color: var(--color-accent-deep); color: rgba(255,255,255,0.86); padding-block: clamp(48px, 6vw, 72px) 28px; font-size: 0.92rem; }
.footer-brand { display: flex; flex-wrap: wrap; align-items: center; gap: clamp(20px, 3vw, 40px); padding-bottom: 1.8em; border-bottom: 1px solid rgba(255,255,255,0.16); }
.footer-brand__hd { display: inline-flex; align-items: center; gap: 0.7em; font-family: var(--font-en); font-weight: 700; letter-spacing: 0.14em; color: var(--color-bg-alt); font-size: 1rem; }
.footer-brand__hd::before { content: ""; width: 26px; height: 26px; background: var(--color-bg-alt); -webkit-mask: url("../img/claria-kamon.svg") center / contain no-repeat; mask: url("../img/claria-kamon.svg") center / contain no-repeat; }
.footer-logos { display: flex; flex-wrap: wrap; gap: clamp(14px, 2.5vw, 28px); }
.footer-logos a { color: rgba(255,255,255,0.78); font-size: 0.92rem; padding-block: 0.25em; display: inline-block; }
.footer-logos a:hover { color: var(--color-bg-alt); }
.footer-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; padding-top: 1.8em; }
.footer-meta__addr { line-height: 1.9; }
.footer-meta__addr .en { font-family: var(--font-en); font-size: 0.82rem; color: rgba(255,255,255,0.66); }
.footer-links { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: 0.88rem; }
.footer-links a { display: inline-block; padding-block: 0.25em; }
.footer-links--policy { margin-top: 1.6em; }
.footer-note { font-size: 0.8rem; color: rgba(255,255,255,0.6); margin-top: 1.4em; line-height: 1.8; }
.copyright { font-family: var(--font-en); font-size: 0.78rem; letter-spacing: 0.03em; color: rgba(255,255,255,0.5); text-align: center; margin-top: 2.2em; }

/* ---- レスポンシブ ------------------------------------------------------- */
@media (max-width: 960px) {
  .nav-toggle { display: block; }
  .js .gnav {
    position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--color-bg-alt); border-bottom: 1px solid var(--color-line); padding: 10px var(--gutter) 22px;
    transform: translateY(-120%); max-height: calc(100vh - var(--header-h)); overflow: auto;
    visibility: hidden;
    transition: transform var(--dur) var(--ease), visibility 0s linear var(--dur);
  }
  .js .gnav.is-open { transform: none; visibility: visible; transition: transform var(--dur) var(--ease), visibility 0s; }
  .gnav__link { width: 100%; padding: 0.9em 0; border-bottom: 1px solid var(--color-line); }
  .gnav__link[aria-current="page"], .gnav__link:hover { border-bottom-color: var(--color-line); }
  .lang-toggle { padding: 1em 0 0.4em; }
  html:not(.js) .nav-toggle { display: none; }
  html:not(.js) .site-header { position: static; height: auto; padding-block: 14px; }
  html:not(.js) .site-header__inner { flex-wrap: wrap; row-gap: 10px; }
  html:not(.js) .gnav { width: 100%; flex-direction: column; align-items: flex-start; gap: 0; max-height: none; overflow: visible; }
}
@media (max-width: 820px) {
  .split { grid-template-columns: 1fr; }
  .split--rev .split__media { order: 0; }
  .split__media { max-width: 560px; }
}
@media (max-width: 720px) {
  :root { --header-h: 68px; }
  .brand { gap: 0.6em; }
  .brand::before { width: 26px; height: 26px; flex-basis: 26px; }
  .brand__mark { font-size: 0.9rem; letter-spacing: 0.12em; }
  .brand__ja { display: none; }
  .news-item { grid-template-columns: 1fr; gap: 0.3em; }
  .timeline__item { grid-template-columns: 1fr; gap: 0.2em; }
  .info-table th { width: 36%; }
  .num-list__item { grid-template-columns: 2.2em 1fr; }
  .facts { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 400px) {
  :root { --gutter: 18px; }
  .info-table th, .info-table td { display: block; width: 100%; }
  .info-table th { border-bottom: 0; padding-bottom: 0.2em; }
  .info-table td { padding-top: 0.2em; }
  .facts { grid-template-columns: 1fr; }
}

/* ---- 動き（fade-in は廃止。動くのは押せるものだけ） -------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, a, .gnav__link { transition: none; }
  .js .gnav, .js .gnav.is-open { transition: none; }
}

/* ---- modifier（インライン style の代わり。同じ詳細度の部品ルールに勝つよう最後に置く） ---- */
.narrow { max-width: 52em; }
.center { text-align: center; }
.text-center { text-align: center; }
.mt-1 { margin-top: 1.5em; }
.mt-2 { margin-top: 2.5em; }
.mt-block { margin-top: var(--space-block); }
.mb-block { margin-bottom: var(--space-block); }
.small { font-size: 0.92rem; color: var(--color-ink-soft); }
.stack > * + * { margin-top: 1.4em; }
.nobr { white-space: nowrap; }
.brand-logo { margin: 0 0 1.2em; }
.brand-logo img { display: block; width: min(260px, 60%); height: auto; }
.split__body .brand-logo { margin-bottom: 0.9em; }