/* ===================================
   column.css — 相続コラム 一覧・詳細 共通スタイル
   =================================== */

/* ===== ページヒーロー ===== */
.page-hero {
  background: var(--bg-light);
  padding: 48px 0;
  color: #1a1a1a;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.4rem;
  margin-bottom: 20px;
  opacity: .8;
  flex-wrap: wrap;
}
.breadcrumb a { color: rgba(90, 60, 55, 0.75); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { opacity: .5; }
.page-hero-label {
  font-size: 1.3rem;
  font-weight: 700;
  background: var(--accent);
  color: #fff;
  display: inline-block;
  padding: 3px 16px;
  border-radius: 2px;
  margin-bottom: 16px;
  letter-spacing: .1em;
}
.page-hero h1 {
  font-size: 3.6rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
}
.page-hero h1 em { font-style: normal; color: #5a3c37; }
.page-hero-lead {
  font-size: 1.7rem;
  line-height: 1.85;
  opacity: 1;
  max-width: 720px;
}

/* ===== カテゴリフィルター（一覧） ===== */
.filter-bar {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  position: sticky;
  top: 72px;
  z-index: 100;
}
.filter-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.filter-label {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-muted);
  white-space: nowrap;
}
.filter-btn {
  display: inline-flex;
  align-items: center;
  font-size: 1.4rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: #fff;
  color: #555;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ===== コラム一覧 ===== */
.column-list-section { padding: 56px 0 80px; }
.column-list-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}

/* ===== コラムカード ===== */
.column-grid {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.column-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  border: 1px solid var(--border);
  transition: box-shadow var(--transition), transform var(--transition);
}
.column-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.column-card-img {
  width: 220px;
  flex-shrink: 0;
  overflow: hidden;
  background: var(--bg-light);
  position: relative;
}
.column-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .4s ease;
}
.column-card:hover .column-card-img img { transform: scale(1.04); }
.column-card-img-placeholder {
  width: 100%;
  height: 100%;
  min-height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5.6rem;
  background: var(--primary);
}
.column-card-body {
  padding: 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.column-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}
.column-card-cat {
  font-size: 1.2rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 2px;
  color: #fff;
  background: var(--primary);
}
.column-card-cat.cat-kiso    { background: #1a5276; }
.column-card-cat.cat-setsuzei { background: #1e6b3b; }
.column-card-cat.cat-tetuzuki { background: #6c3483; }
.column-card-cat.cat-ai       { background: #c0392b; }
.column-card-date {
  font-size: 1.3rem;
  color: var(--text-muted);
}
.column-card-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: #1a1a1a;
  line-height: 1.5;
  margin-bottom: 10px;
  flex: 1;
}
.column-card-excerpt {
  font-size: 1.4rem;
  color: #555;
  line-height: 1.7;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.column-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  margin-top: auto;
  transition: gap var(--transition);
}
.column-card-link::after { content: '→'; }
.column-card-link:hover { gap: 10px; }

/* ===== 詳細ページ: レイアウト ===== */
.article-body {
  padding: 56px 0 80px;
}
.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}
.article-main {}
.article-sidebar {}

/* ===== 記事ヘッダー ===== */
.article-header { margin-bottom: 36px; }
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.article-cat {
  font-size: 1.3rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 2px;
  color: #fff;
}
.article-date {
  font-size: 1.4rem;
  color: var(--text-muted);
}
.article-update {
  font-size: 1.3rem;
  color: var(--text-muted);
  background: var(--bg-gray);
  padding: 2px 10px;
  border-radius: 2px;
}
.article-title {
  font-size: 3.0rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.4;
  margin-bottom: 16px;
}
.article-lead {
  font-size: 1.7rem;
  color: #444;
  line-height: 1.9;
  border-left: 4px solid var(--accent);
  padding-left: 20px;
  margin-bottom: 0;
}

/* ===== 目次 ===== */
.toc {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin: 36px 0;
}
.toc-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.toc-title::before {
  content: '≡';
  font-size: 2.0rem;
  color: var(--accent);
}
.toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.toc-list li { padding-left: 0; }
.toc-list a {
  font-size: 1.5rem;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.6;
  transition: color var(--transition);
}
.toc-list a:hover { color: var(--accent); text-decoration: underline; }
.toc-list a::before {
  content: counter(toc-counter) '.';
  counter-increment: toc-counter;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  min-width: 20px;
}
.toc-list { counter-reset: toc-counter; }

/* ===== 記事本文 ===== */
.article-content { font-size: 1.6rem; color: #333; line-height: 1.9; }
.article-content h2 {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--primary);
  margin: 48px 0 20px;
  padding: 14px 20px;
  background: var(--bg-light);
  border-left: 5px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  scroll-margin-top: 100px;
  line-height: 1.4;
}
.article-content h3 {
  font-size: 2.0rem;
  font-weight: 700;
  color: var(--primary);
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
  scroll-margin-top: 100px;
}
.article-content h4 {
  font-size: 1.7rem;
  font-weight: 700;
  color: #333;
  margin: 28px 0 12px;
}
.article-content p { margin-bottom: 20px; }
.article-content p:last-child { margin-bottom: 0; }
.article-content strong { color: var(--primary); }
.article-content a { color: var(--primary); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.article-content ul,
.article-content ol {
  margin: 16px 0 20px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.article-content ul li {
  padding-left: 22px;
  position: relative;
  line-height: 1.7;
}
.article-content ul li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 1.1rem;
  top: 5px;
}
.article-content ol { counter-reset: ol-counter; }
.article-content ol li {
  padding-left: 30px;
  position: relative;
  line-height: 1.7;
}
.article-content ol li::before {
  content: counter(ol-counter) '.';
  counter-increment: ol-counter;
  position: absolute;
  left: 0;
  font-weight: 700;
  color: var(--primary);
}

/* 記事内ボックス */
.article-content .box-warn {
  background: #fff8e1;
  border: 1px solid #f5a623;
  border-left: 4px solid #f5a623;
  border-radius: var(--radius);
  padding: 18px 22px;
  margin: 24px 0;
  font-size: 1.5rem;
  line-height: 1.8;
}
.article-content .box-warn::before {
  content: '⚠ ';
  font-weight: 700;
  color: #e67e22;
}
.article-content .box-point {
  background: #eaf4ff;
  border: 1px solid #7fb3d3;
  border-left: 4px solid var(--primary);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin: 24px 0;
  font-size: 1.5rem;
  line-height: 1.8;
}
.article-content .box-point::before {
  content: '✔ ポイント｜';
  font-weight: 700;
  color: var(--primary);
}
.article-content .box-accent {
  background: var(--accent-light);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin: 24px 0;
  font-size: 1.5rem;
  line-height: 1.8;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 1.5rem;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.article-content table th,
.article-content table td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  vertical-align: middle;
}
.article-content table thead th {
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  text-align: left;
}
.article-content table tbody tr:nth-child(even) { background: var(--bg-gray); }

/* 担当者コメント */
.article-author-box {
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  padding: 28px 32px;
  margin: 48px 0 0;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.article-author-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 3px solid var(--accent);
}
.article-author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}
.article-author-name { font-size: 1.4rem; opacity: .8; margin-bottom: 8px; }
.article-author-text { font-size: 1.6rem; line-height: 1.85; opacity: .95; }

/* ===== サイドバー（共通） ===== */
.sidebar-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}
.sidebar-card-head {
  background: var(--primary);
  color: #fff;
  padding: 14px 20px;
  font-size: 1.6rem;
  font-weight: 700;
}
.sidebar-card-body { padding: 20px; }

/* 目次サイドバー（詳細ページ） */
.sidebar-toc { position: sticky; top: 100px; }
.sidebar-toc-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: stoc-counter;
}
.sidebar-toc-list li { counter-increment: stoc-counter; }
.sidebar-toc-list a {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 1.4rem;
  color: #444;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  line-height: 1.5;
  transition: color var(--transition);
}
.sidebar-toc-list li:last-child a { border-bottom: none; }
.sidebar-toc-list a:hover { color: var(--primary); }
.sidebar-toc-list a::before {
  content: counter(stoc-counter) '.';
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
  min-width: 18px;
}

/* CTA サイドバー */
.sidebar-cta-tel {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--primary);
  display: block;
  text-align: center;
  letter-spacing: .02em;
  margin-bottom: 4px;
}
.sidebar-cta-hours {
  font-size: 1.3rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 16px;
}
.sidebar-card .btn { width: 100%; text-align: center; margin-bottom: 10px; }

/* 関連記事リスト */
.sidebar-post-list { display: flex; flex-direction: column; gap: 12px; }
.sidebar-post-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.sidebar-post-item:last-child { border-bottom: none; padding-bottom: 0; }
.sidebar-post-cat {
  font-size: 1.2rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 2px;
  background: var(--primary);
  color: #fff;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 2px;
}
.sidebar-post-title {
  font-size: 1.4rem;
  color: #333;
  line-height: 1.5;
  font-weight: 600;
  transition: color var(--transition);
}
.sidebar-post-item a:hover .sidebar-post-title { color: var(--primary); }

/* ===== 関連記事（詳細下部） ===== */
.related-posts-section {
  background: var(--bg-light);
  padding: 64px 0;
  border-top: 1px solid var(--border);
}
.related-posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

/* ===== CTA ===== */
.main-cta {
  background: var(--primary);
  padding: 80px 0;
  text-align: center;
  color: #fff;
}
.main-cta h2 { font-size: 3.2rem; font-weight: 900; margin-bottom: 12px; line-height: 1.4; }
.main-cta p  { font-size: 1.7rem; opacity: .85; margin-bottom: 40px; }
.cta-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.cta-card {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  backdrop-filter: blur(4px);
}
.cta-card-title { font-size: 1.8rem; font-weight: 700; margin-bottom: 8px; }
.cta-card-desc  { font-size: 1.4rem; opacity: .8; margin-bottom: 20px; line-height: 1.6; }
.cta-card .tel-link { font-size: 2.8rem; font-weight: 900; color: var(--accent); display: block; letter-spacing: .02em; }
.cta-card .btn { width: 100%; }

/* ===== フッター ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.85);
  padding-top: 56px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand p { font-size: 1.4rem; line-height: 1.8; margin: 16px 0 12px; opacity: .75; }
.footer-logo-img { filter: brightness(0) invert(1); opacity: .9; margin-bottom: 4px; }
.footer-tel   { font-size: 2.2rem; font-weight: 900; color: var(--accent); letter-spacing: .03em; }
.footer-hours { font-size: 1.3rem; opacity: .65; margin-top: 4px; }
.footer-nav-title {
  font-size: 1.4rem; font-weight: 700; color: #fff;
  margin-bottom: 16px; padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,.15);
}
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a { font-size: 1.4rem; opacity: .75; transition: opacity var(--transition); }
.footer-nav a:hover { opacity: 1; }
.footer-bottom {
  display: flex; align-items: center; justify-content: center;
  gap: 24px; padding: 20px; font-size: 1.3rem; opacity: .6; flex-wrap: wrap;
}
.footer-bottom a:hover { text-decoration: underline; opacity: 1; }


/* ===== レスポンシブ ===== */
@media (max-width: 1040px) {
  .column-list-layout,
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
  .sidebar-toc { position: static; }
  .related-posts-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .cta-cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  body { padding-bottom: 72px; }
  .page-hero { padding: 36px 0; }
  .page-hero h1 { font-size: 2.6rem; }
  .page-hero-lead { font-size: 1.5rem; }
  .filter-bar { top: 58px; }
  .column-card { flex-direction: column; }
  .column-card-img { width: 100%; height: 180px; }
  .article-sidebar { grid-template-columns: 1fr; }
  .related-posts-grid { grid-template-columns: 1fr; }
  .cta-cards { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .article-content h2 { font-size: 2.0rem; }
  .article-content h3 { font-size: 1.7rem; }
  .article-author-box { flex-direction: column; }
}
@media (max-width: 480px) {
  .page-hero h1 { font-size: 2.2rem; }
  .footer-inner { grid-template-columns: 1fr; }
  .article-title { font-size: 2.4rem; }
}