/* ============================================================
   お知らせ詳細 — News Single
   ============================================================ */

/* ── ページヒーロー拡張 ── */
.page-hero .article-badge {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 12px;
  border: 1px solid rgba(185,89,66,.4);
  border-radius: 999px;
  font-family: var(--jp-display);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--accent-deep);
  margin-bottom: 20px;
}

/* ── 記事本文エリア ── */
.article-body {
  background: var(--paper);
  padding: clamp(64px, 9vw, 120px) var(--pad-x) clamp(80px, 10vw, 140px);
}
.article-body__inner {
  max-width: 760px;
  margin: 0 auto;
}

.article-content {
  font-family: var(--jp-body);
  font-size: 16px;
  line-height: 2.15;
  color: var(--ink-2);
  letter-spacing: .08em;
}
.article-content p {
  margin-bottom: 1.8em;
}
.article-content p:last-of-type {
  margin-bottom: 0;
}

/* 強調ボックス */
.article-box {
  background: var(--paper-warm);
  border-left: 3px solid var(--accent);
  padding: 28px 32px;
  margin: 40px 0;
  border-radius: 0 4px 4px 0;
}
.article-box__heading {
  font-family: var(--jp-display);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--ink);
  margin-bottom: 18px;
}
.article-box__row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 8px 24px;
  font-family: var(--jp-body);
  font-size: 15px;
  color: var(--ink-2);
  letter-spacing: .08em;
  line-height: 1.85;
}
.article-box__row + .article-box__row {
  margin-top: 10px;
}
.article-box__label {
  font-family: var(--jp-display);
  font-weight: 600;
  color: var(--ink-soft);
  font-size: 13.5px;
  letter-spacing: .18em;
}

/* 注意書き */
.article-note {
  font-size: 13.5px;
  color: var(--ink-soft);
  letter-spacing: .06em;
  line-height: 1.9;
  margin-top: 28px;
}
.article-note p { margin-bottom: .6em; }

/* 署名 */
.article-signature {
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-family: var(--jp-display);
  font-size: 14px;
  letter-spacing: .2em;
  color: var(--ink-soft);
}

/* ── 関連記事 ── */
.related {
  background: var(--paper-warm);
}
.related__inner {
  max-width: 1180px;
  margin: 0 auto;
}
.related .h-mid {
  font-size: clamp(22px, 2.8vw, 38px);
  margin-bottom: 48px;
}

.related-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.related-item {
  background: var(--paper);
  transition: background .25s ease;
}
.related-item:hover {
  background: var(--paper-deep);
}
.related-item__link-area {
  display: block;
  padding: 32px 28px;
  text-decoration: none;
  color: inherit;
}
.related-item__date {
  font-family: var(--en-display);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--ink-soft);
  margin-bottom: 10px;
}
.related-item__badge {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--jp-display);
  font-size: 10.5px;
  letter-spacing: .2em;
  color: var(--ink-soft);
  margin-bottom: 14px;
}
.related-item__title {
  font-family: var(--jp-display);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--ink);
  line-height: 1.75;
  margin-bottom: 16px;
}
.related-item__link {
  font-family: var(--en-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--ink-soft);
  text-transform: uppercase;
  transition: color .3s ease;
}
.related-item__link:hover { color: var(--accent-deep); }

/* ── 一覧へ戻る ── */
.back-nav {
  background: var(--paper);
  padding: 56px var(--pad-x);
  display: flex;
  justify-content: center;
}
.back-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--jp-display);
  font-size: 14px;
  letter-spacing: .12em;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
  padding-bottom: 4px;
  transition: color .3s ease, gap .3s ease, border-color .3s ease;
}
.back-nav__link:hover {
  color: var(--ink);
  gap: 16px;
  border-color: var(--ink);
}
.back-nav__link .arrow-left {
  display: inline-block;
  transition: transform .3s ease;
}
.back-nav__link:hover .arrow-left {
  transform: translateX(-4px);
}

/* ── レスポンシブ ── */
@media (max-width: 960px) {
  .related-list {
    grid-template-columns: 1fr;
    gap: 2px;
  }
  .article-box__row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .article-box__label::after {
    content: "：";
  }
}
@media (max-width: 640px) {
  .article-box {
    padding: 22px 20px;
  }
}