/* ja.css: Japanese pages (/ja/*). Loaded after zh.css by partials/head-i18n.njk.
   System CJK fonts only (no web CJK font: megabytes). Space Grotesk stays first so Latin
   text keeps the brand face; kana/kanji fall through to the system Japanese font, so
   Han unification never shows Chinese glyph forms. No italics, no letter-spacing on CJK. */

html[lang="ja"] {
  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Yu Gothic UI", "Yu Gothic", "Meiryo", "Noto Sans JP", "Noto Sans CJK JP", "Source Han Sans JP",
    "Segoe UI", system-ui, sans-serif;
  --font-display: var(--font-sans);
}

html[lang="ja"] body {
  line-height: 1.8;
  line-break: strict;
  word-break: normal;
  overflow-wrap: break-word;
  font-feature-settings: "palt" 0;
}

html[lang="ja"] em, html[lang="ja"] i, html[lang="ja"] cite { font-style: normal; }

html[lang="ja"] h1,
html[lang="ja"] h2,
html[lang="ja"] h3 { letter-spacing: 0; line-break: strict; text-wrap: balance; }

html[lang="ja"] .section-label { letter-spacing: 1px; }

html[lang="ja"] .hero h1 {
  font-size: clamp(28px, 4.6vw, 48px);
  line-height: 1.35;
}

html[lang="ja"] .hero__subtitle {
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.95;
  max-width: 760px;
  margin-bottom: 28px;
}

html[lang="ja"] .hero__subtitle a { text-decoration: underline; text-underline-offset: 3px; }

html[lang="ja"] .hero__updated {
  font-size: 13px;
  color: var(--text-muted);
  margin: -12px 0 28px;
}

html[lang="ja"] .section-subtitle { line-height: 1.9; }

html[lang="ja"] .hero__stats { flex-wrap: wrap; justify-content: center; row-gap: 24px; }

html[lang="ja"] .faq__question { text-align: left; justify-content: space-between; line-height: 1.65; }
html[lang="ja"] .faq__item.open .faq__answer { max-height: 1400px; }
html[lang="ja"] .faq__answer-inner { text-align: left; padding: 0 32px 20px; font-size: 15px; line-height: 1.9; }

html[lang="ja"] .zh-welcome__text { line-height: 1.9; }
html[lang="ja"] .zh-table th, html[lang="ja"] .zh-table td { line-height: 1.7; }