@import url("rn-single-share.css");
/* 技術コラム 詳細（single-column.php）— 左に追従する目次、右に本文（.rn-prose・760px）
   本文は the_content の全文（section.section / .section__head / .entry-cta / .column-figure / #faq / #summary / #author を含む）。
   旧CSS（core-layout.css の .section 等）は @layer 内なので、ここ（レイヤー外）の指定が優先される。
   デザイン: build_a_sub5.py column_detail() */

body.single-column { background: #fff; }

/* タイトル帯: 詳細は見出しが長いので、写真窓の切り口を右へ寄せ（上端 x=1230/1440）、見出しを小さめにする（デザインの h=520・size=40） */
@media (min-width: 901px) {
  .rn-hero { --hero-top: 85.4vw; }
  .rn-hero__line { transform: translateX(15.3vw); }
  .rn-hero--m .rn-hero__title { font-size: clamp(28px, 2.8vw, 40px); line-height: 1.45; text-wrap: balance; }
}

/* 追従する目次のため、帯の overflow は hidden ではなく clip にする（hidden だと sticky が効かない） */
.rn-col-single__section { overflow: clip; padding-top: clamp(56px, 7vw, 88px); }
.rn-col-single__grid { display: grid; grid-template-columns: 280px minmax(0, 760px); gap: 0 96px; justify-content: center; align-items: start; }
.rn-col-single__grid--notoc { grid-template-columns: minmax(0, 760px); }
.rn-col-single__main { min-width: 0; }

/* ---------------- 目次（inj_generate_toc の出力 .toc） ---------------- */
.rn-col-toc { align-self: stretch; }
.rn-col-toc__sticky { position: sticky; top: 104px; max-height: calc(100vh - 124px); overflow-y: auto; scrollbar-width: thin; }
.rn-col-toc__head { margin: 0; font-size: 11px; color: var(--rn-ink); }
.rn-col-toc .toc { margin-top: 12px; padding: 0; border: 0; background: none; box-shadow: none; }
.rn-col-toc .toc::before { display: none; }
.rn-col-toc .toc__details { margin: 0; padding: 0; border: 0; }
.rn-col-toc .toc__summary { display: none; }
.rn-col-toc .toc__list { margin: 0; padding: 0; list-style: none; border-bottom: 1px solid rgba(17, 18, 20, 0.14); counter-reset: none; }
.rn-col-toc .toc__item { margin: 0; padding: 0; }
.rn-col-toc .toc__item a { display: flex; gap: 10px; padding: 10px 0; border-top: 1px solid rgba(17, 18, 20, 0.14); font-size: 13.5px; font-weight: 700; line-height: 1.6; color: var(--rn-ink); text-decoration: none; }
.rn-col-toc .toc__item a:hover .toc__text { text-decoration: underline; text-decoration-color: var(--rn-gold); text-underline-offset: 3px; }
.rn-col-toc .toc__index { width: auto; min-width: 18px; height: auto; flex-shrink: 0; padding: 0; border-radius: 0; background: none; font-family: var(--rn-font-mono); font-size: 11px; font-weight: 400; line-height: 2.1; color: rgba(17, 18, 20, 0.55); }
.rn-col-toc .toc__text { font-size: inherit; color: inherit; }
.rn-col-toc .toc__item--child a { padding: 3px 0 3px 28px; line-height: 1.55; border-top: 0; font-size: 12.5px; font-weight: 400; color: var(--rn-sub-light); }
.rn-col-toc .toc__item--child .toc__index { font-size: 10.5px; line-height: 1.9; }
.rn-col-toc .toc__item + .toc__item { margin-top: 0; }
.rn-col-toc .toc__item--child + .toc__item:not(.toc__item--child) a { margin-top: 6px; }
.rn-col-toc .toc__item.is-active > a { color: var(--rn-ink); }
.rn-col-toc .toc__item.is-active > a::before { display: none; }

.rn-col-toc__contact { margin-top: 28px; padding: 22px; background: var(--rn-ink); color: #fff; }
.rn-col-toc__contact-en { margin: 0; font-size: 10.5px; color: var(--rn-gold-on-dark); }
.rn-col-toc__contact-text { margin-top: 6px; font-size: 16px; line-height: 1.6; color: #fff; }
.rn-col-toc__contact-btn { display: flex; align-items: center; justify-content: space-between; height: 46px; margin-top: 14px; padding: 0 16px; background: #fff; color: var(--rn-ink); font-size: 13.5px; font-weight: 700; }
.rn-col-toc__contact-btn .rn-arrow { width: 14px; height: 14px; }

/* ---------------- 本文 ---------------- */
.rn-col-prose { font-size: 16px; line-height: 2.05; }
.rn-col-prose .section { display: block; gap: 0; margin: 0; padding: 0; }
.rn-col-prose .section > * { width: auto; }
.rn-col-prose > .section + .section,
.rn-col-prose > .section + *,
.rn-col-prose > * + .section { margin-top: 0; }
.rn-col-prose .section > * + * { margin-top: 1.2em; }
.rn-col-prose .section__head { display: block; margin: 0; }
.rn-col-prose p:empty { display: none; }
/* 本文内の h1（本番どおり残す）。タイトル帯の h1 より控えめな大見出しにする */
.rn-col-prose h1 { margin: 0 0 1em; font-family: var(--rn-font-head); font-weight: 900; font-size: clamp(22px, 2.2vw, 30px); line-height: 1.5; color: var(--rn-ink); }

/* 見出し: h2 は金の斜めの角、h3 は墨の縦線（デザインどおり） */
.rn-col-prose h2 { display: flex; align-items: center; gap: 16px; margin-top: 60px; padding: 0 0 14px; border-bottom: 1px solid var(--rn-line-light); background: none; border-left: 0; font-size: clamp(22px, 2vw, 28px); line-height: 1.5; color: var(--rn-ink); text-align: left; }
.rn-col-prose h2::before { content: ""; display: block; width: 18px; height: 18px; flex-shrink: 0; background: var(--rn-gold); transform: skewX(-30deg); }
.rn-col-prose h2::after { display: none; }
.rn-col-prose .section > .section__head:first-child h2 { margin-top: 60px; }
.rn-col-prose h3 { margin-top: 2em; padding: 0 0 0 14px; border: 0; border-left: 3px solid var(--rn-ink); font-size: clamp(18px, 1.5vw, 20px); font-weight: 700; line-height: 1.5; }
.rn-col-prose h2 + *, .rn-col-prose .section__head + * { margin-top: 1.2em; }

/* 本文の画像（本番の画像をそのまま表示） */
.rn-col-prose figure, .rn-col-prose .column-figure { margin: 28px 0 0; }
.rn-col-prose figure img, .rn-col-prose .column-figure img { width: 100%; height: auto; }
.rn-col-prose figcaption { margin-top: 8px; font-family: var(--rn-font-mono); font-size: 11px; letter-spacing: .04em; line-height: 1.7; color: rgba(17, 18, 20, 0.6); }

/* 表 */
.rn-col-prose table { margin-top: 22px; font-size: 13.5px; line-height: 1.75; }
.rn-col-prose thead th, .rn-col-prose tr:first-child th { background: var(--rn-ink); border-color: var(--rn-ink); color: #fff; font-family: var(--rn-font-body); font-size: 12.5px; }
.rn-col-prose tbody th { background: var(--rn-paper); color: var(--rn-ink); }
.rn-col-prose td { background: #fff; }
.rn-col-prose tbody tr td:first-child { font-weight: 700; }

/* 記事内のご相談（.entry-cta） */
.rn-col-prose .entry-cta { margin-top: 36px; padding: 22px 26px; border: 0; border-radius: 0; background: var(--rn-paper); box-shadow: none; }
.rn-col-prose .entry-cta p { margin: 0; font-size: 14.5px; line-height: 1.9; }
.rn-col-prose .entry-cta p + p { margin-top: 8px; }
.rn-col-prose .entry-cta--light { border-left: 3px solid var(--rn-gold); }
.rn-col-prose .entry-cta__inner { display: block; padding: 0; text-align: left; }
.rn-col-prose .entry-cta__heading { font-family: var(--rn-font-head); font-weight: 900; font-size: 20px; line-height: 1.5; color: var(--rn-ink); }
.rn-col-prose .entry-cta--standard { --rn-tombo: var(--rn-ink); position: relative; padding: 30px 34px; }
.rn-col-prose .entry-cta--strong { padding: 30px 34px; background: var(--rn-ink); color: #fff; }
.rn-col-prose .entry-cta--strong .entry-cta__heading, .rn-col-prose .entry-cta--strong p { color: #fff; }
.rn-col-prose .entry-cta__actions { margin-top: 18px !important; }
.rn-col-prose .entry-cta .btn { display: inline-flex; align-items: center; gap: 14px; min-height: 50px; padding: 0 26px; border: 0; border-radius: 0; background: var(--rn-ink); box-shadow: none; color: #fff; font-size: 14.5px; font-weight: 700; text-decoration: none; }
.rn-col-prose .entry-cta .btn::after { content: "→"; font-family: var(--rn-font-en); }
.rn-col-prose .entry-cta--strong .btn { background: #fff; color: var(--rn-ink); }
.rn-col-prose .entry-cta .btn:hover { opacity: .85; transform: none; }

/* よくあるご質問（#faq: h3 が質問、続く div が回答。回答は隠さず表示） */
.rn-col-prose #faq > div { margin-top: 0; padding: 18px 0 20px; border-top: 1px solid var(--rn-line-light); }
.rn-col-prose #faq > .section__head + div { margin-top: 10px; border-top: 0; }
.rn-col-prose #faq > div:last-of-type { border-bottom: 1px solid var(--rn-line-light); }
.rn-col-prose #faq h3 { display: flex; gap: 16px; margin: 0; padding: 0; border: 0; font-size: 15.5px; line-height: 1.7; }
.rn-col-prose #faq h3::before { content: "Q"; flex-shrink: 0; width: 18px; font-family: var(--rn-font-en); font-size: 22px; font-weight: 600; line-height: 1.2; color: var(--rn-ink); }
.rn-col-prose #faq h3 + div { position: relative; margin-top: 10px; padding-left: 34px; font-size: 14.5px; line-height: 1.95; color: var(--rn-sub-light); }
.rn-col-prose #faq h3 + div::before { content: "A"; position: absolute; left: 0; top: 0; font-family: var(--rn-font-en); font-size: 22px; font-weight: 300; line-height: 1.2; color: var(--rn-gold); }

/* まとめ（#summary: 暗い地の箱） */
.rn-col-prose #summary { --rn-tombo: var(--rn-gold); position: relative; margin-top: 56px; padding: 34px 38px 32px; background: var(--rn-ink); color: #fff; }
.rn-col-prose #summary::before, .rn-col-prose #summary::after { content: ""; position: absolute; width: 18px; height: 18px; border-color: var(--rn-gold); border-style: solid; pointer-events: none; }
.rn-col-prose #summary::before { left: 14px; top: 10px; border-width: 1px 0 0 1px; }
.rn-col-prose #summary::after { right: 14px; bottom: 10px; border-width: 0 1px 1px 0; }
.rn-col-prose #summary h2 { margin-top: 0; padding: 0; border: 0; font-size: 26px; color: #fff; }
.rn-col-prose #summary h2::before { display: none; }
.rn-col-prose #summary .section__head:first-child h2 { margin-top: 0; }
.rn-col-prose #summary p { font-size: 14.5px; color: var(--rn-sub-dark); }
.rn-col-prose #summary a { color: #fff; }
.rn-col-prose #summary ul { padding: 0; list-style: none; }
.rn-col-prose #summary li { display: flex; gap: 12px; margin: 0; padding: 10px 0; border-top: 1px solid rgba(255, 255, 255, 0.14); font-size: 14.5px; line-height: 1.85; color: #fff; }
.rn-col-prose #summary li::before { content: ""; width: 10px; height: 10px; margin-top: 9px; flex-shrink: 0; background: var(--rn-gold); transform: skewX(-30deg); }
.rn-col-prose #summary .entry-cta--strong { border: 1px solid rgba(255, 255, 255, 0.2); background: var(--rn-ink2); }
.rn-col-prose #summary .entry-cta .btn { color: var(--rn-ink); text-decoration: none; }

/* 執筆者（#author .author-profile） */
.rn-col-prose #author { margin-top: 40px; }
.rn-col-prose .author-profile { padding: 26px 28px; border: 1px solid rgba(17, 18, 20, 0.2); border-radius: 0; background: #fff; box-shadow: none; }
.rn-col-prose .author-profile::before { content: "AUTHOR — 執筆"; display: block; font-family: var(--rn-font-mono); font-size: 10.5px; letter-spacing: .08em; color: rgba(17, 18, 20, 0.6); }
.rn-col-prose .author-profile p { margin: 0; font-size: 13.5px; line-height: 1.85; color: var(--rn-sub-light); }
.rn-col-prose .author-profile p:first-child { margin-top: 2px; font-family: var(--rn-font-head); font-weight: 900; font-size: 18px; color: var(--rn-ink); }
.rn-col-prose .author-profile p + p { margin-top: 6px; }

/* ---------------- まとめ／監修／参考文献（管理画面入力のブロック） ---------------- */
.rn-col-meta > aside { margin-top: 40px; padding: 26px 28px; border: 1px solid rgba(17, 18, 20, 0.2); border-radius: 0; background: #fff; box-shadow: none; }
.rn-col-meta [class$="__head"] { display: block; margin: 0; padding: 0; border: 0; background: none; }
.rn-col-meta [class$="__eyebrow"] { display: block; font-family: var(--rn-font-mono); font-size: 10.5px; letter-spacing: .08em; color: rgba(17, 18, 20, 0.6); }
.rn-col-meta [class$="__title"] { margin: 4px 0 0; font-family: var(--rn-font-head); font-weight: 900; font-size: 20px; color: var(--rn-ink); }
.rn-col-meta p, .rn-col-meta li { font-size: 14px; line-height: 1.9; color: var(--rn-sub-light); }
.rn-col-meta ul, .rn-col-meta ol { margin: 12px 0 0; padding-left: 1.4em; }
.rn-col-meta .article-summary { background: var(--rn-paper); border-color: var(--rn-paper); }
.rn-col-meta .article-supervisor__card { display: flex; gap: 18px; margin-top: 14px; padding: 0; border: 0; background: none; }
.rn-col-meta .article-supervisor__avatar { display: flex; align-items: center; justify-content: center; width: 56px; height: 56px; flex-shrink: 0; border-radius: 0; background: var(--rn-ink); color: #fff; font-family: var(--rn-font-head); font-size: 22px; }
.rn-col-meta .article-supervisor__name { font-weight: 700; color: var(--rn-ink); }
.rn-col-meta .article-supervisor__role { margin-left: 10px; font-size: 12.5px; font-weight: 400; color: rgba(17, 18, 20, 0.6); }
.rn-col-meta a { color: var(--rn-ink); text-decoration: underline; text-decoration-color: var(--rn-gold); word-break: break-all; }

/* ---------------- スマホ（900px 以下）: 目次を本文の上に置き、開閉できるようにする ---------------- */
@media (max-width: 1100px) {
  .rn-col-single__grid { grid-template-columns: 240px minmax(0, 1fr); gap: 0 48px; }
}
@media (max-width: 900px) {
  .rn-col-single__grid { grid-template-columns: minmax(0, 1fr); }
  .rn-col-toc { margin-bottom: 36px; }
  .rn-col-toc__sticky { position: static; max-height: none; overflow: visible; }
  .rn-col-toc__head { display: none; }
  .rn-col-toc .toc { margin-top: 0; border: 1px solid var(--rn-line-light); }
  .rn-col-toc .toc__summary { display: flex; align-items: center; justify-content: space-between; min-height: 52px; padding: 0 18px; font-family: var(--rn-font-mono); font-size: 12px; letter-spacing: .08em; cursor: pointer; list-style: none; }
  .rn-col-toc .toc__summary::-webkit-details-marker { display: none; }
  .rn-col-toc .toc__summary::after { content: "+"; font-family: var(--rn-font-en); font-size: 20px; }
  .rn-col-toc .toc__details[open] > .toc__summary::after { content: "−"; }
  .rn-col-toc .toc__list { padding: 0 18px 8px; border-bottom: 0; }
  .rn-col-toc .toc__item--child { display: none; }
  .rn-col-toc__contact { display: none; }

  .rn-col-prose { font-size: 15px; line-height: 1.95; }
  .rn-col-prose h2 { margin-top: 48px; gap: 12px; font-size: 21px; }
  .rn-col-prose h2::before { width: 14px; height: 14px; }
  .rn-col-prose .section > .section__head:first-child h2 { margin-top: 48px; }
  .rn-col-prose h3 { font-size: 17px; }
  .rn-col-prose table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .rn-col-prose th, .rn-col-prose td { min-width: 96px; }
  .rn-col-prose .entry-cta--standard, .rn-col-prose .entry-cta--strong, .rn-col-prose #summary { padding: 26px 20px; }
  .rn-col-prose .entry-cta .btn { width: 100%; justify-content: space-between; box-sizing: border-box; }
}