/* ============================================================
   column.css — コラム記事（column/*.html）共通スタイル
   Base-up v131 — 88本のインラインCSSから抽出・統合
   ============================================================ */

/* --- Breadcrumb --- */
.breadcrumb { padding:12px 0; font-size:13px; color:var(--c-text-muted); }
.breadcrumb a { color:var(--c-text-muted); }
.breadcrumb span { margin:0 6px; }

/* --- Article Header --- */
.article-header {
  padding:100px 0 32px;
  position:relative;
  overflow:hidden;
  background:url('../images/column-header-bg.jpg') center center / cover no-repeat var(--c-bg-warm);
}
.article-header::before {
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(to right, rgba(255,255,255,0.92) 0%, rgba(255,255,255,0.75) 40%, rgba(255,255,255,0.35) 70%, rgba(255,255,255,0.10) 100%);
  z-index:1;
}
.article-header > .container { position:relative; z-index:2; }
.article-cat-tag {
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--c-navy);
  background:var(--c-navy-pale);
  padding:4px 12px;
  border-radius:20px;
  margin-bottom:12px;
}
.article-title {
  font-family:var(--font-display);
  font-size:22px;
  font-weight:800;
  line-height:1.6;
  margin-bottom:12px;
}
.article-meta {
  font-size:13px;
  color:var(--c-text-muted);
  display:flex;
  gap:12px;
  align-items:center;
}
.col-update-badge {
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--c-navy);
  background:var(--c-navy-pale);
  padding:6px 14px;
  border-radius:20px;
  margin-bottom:16px;
}

/* --- Article Body --- */
.article-body { padding:40px 0; }
.article-body h2 {
  font-family:var(--font-display);
  font-size:19px;
  font-weight:700;
  line-height:1.6;
  margin:48px 0 16px;
  padding-bottom:8px;
  border-bottom:2px solid var(--c-navy-pale);
}
.article-body h2:first-child { margin-top:0; }
.article-body h3 {
  font-size:16px;
  font-weight:700;
  line-height:1.6;
  margin:32px 0 12px;
  padding-left:12px;
  border-left:3px solid var(--c-navy);
}
.article-body p {
  font-size:16px;
  line-height:2;
  color:var(--c-text-sub);
  margin-bottom:20px;
}
.article-body strong { color:var(--c-text); }

/* --- Table of Contents --- */
.col-toc {
  background:var(--c-bg);
  border-radius:var(--radius);
  padding:24px 20px;
  margin:0 0 32px;
}
.col-toc-title {
  font-size:14px;
  font-weight:700;
  color:var(--c-navy);
  margin-bottom:12px;
}
.col-toc ol {
  list-style:none;
  counter-reset:toc;
  padding:0;
  margin:0;
}
.col-toc li {
  counter-increment:toc;
  padding:8px 0;
  border-bottom:1px solid var(--c-border);
  font-size:14px;
  line-height:1.6;
}
.col-toc li:last-child { border-bottom:none; }
.col-toc li::before {
  content:counter(toc)".";
  color:var(--c-navy);
  font-weight:700;
  margin-right:8px;
}
.col-toc a { color:var(--c-text-sub); }

/* --- Point / Note / Trap --- */
.col-point {
  background:var(--c-navy-pale);
  border-radius:var(--radius);
  padding:20px;
  margin:24px 0;
}
.col-point-title {
  font-size:14px;
  font-weight:700;
  color:var(--c-navy);
  margin-bottom:8px;
  display:flex;
  align-items:center;
  gap:6px;
}
.col-point p {
  font-size:14px;
  line-height:1.9;
  color:var(--c-text-sub);
  margin-bottom:0;
}
.col-note {
  background:var(--c-gold-pale);
  border-radius:var(--radius);
  padding:20px;
  margin:24px 0;
  border-left:4px solid var(--c-gold-light);
}
.col-note-title {
  font-size:14px;
  font-weight:700;
  color:var(--c-gold);
  margin-bottom:8px;
}
.col-note p {
  font-size:14px;
  line-height:1.9;
  color:var(--c-text-sub);
  margin-bottom:0;
}
.col-trap {
  background:var(--c-red-pale);
  border-radius:var(--radius);
  padding:20px;
  margin:24px 0;
  border-left:4px solid var(--c-red);
}
.col-trap-title {
  font-size:14px;
  font-weight:700;
  color:var(--c-red);
  margin-bottom:8px;
}
.col-trap p {
  font-size:14px;
  line-height:1.9;
  color:var(--c-text-sub);
  margin-bottom:0;
}

/* --- Quote --- */
.col-quote {
  background:var(--c-white);
  border-radius:var(--radius);
  padding:24px 20px;
  margin:24px 0;
  border-left:4px solid var(--c-gold-light);
  box-shadow:var(--shadow-s);
}
.col-quote p {
  font-size:16px;
  line-height:2;
  color:var(--c-text);
  margin-bottom:8px;
}
.col-quote cite { font-size:13px; color:var(--c-text-muted); font-style:normal; }

/* --- Table --- */
.col-table-wrap {
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  margin:20px 0 28px;
  position:relative;
}
.col-table-scroll-hint {
  display:none;
  text-align:center;
  font-size:11px;
  color:var(--c-text-muted);
  padding:6px 0 0;
}
.col-table-wrap .col-table { margin:0; min-width:520px; }
.col-table {
  width:100%;
  border-collapse:collapse;
  margin:20px 0 28px;
  font-size:14px;
}
.col-table th {
  background:var(--c-navy);
  color:#fff;
  font-weight:600;
  padding:12px 14px;
  text-align:left;
}
.col-table td {
  padding:12px 14px;
  border-bottom:1px solid var(--c-border);
  line-height:1.7;
  vertical-align:top;
}
.col-table tr:last-child td { border-bottom:none; }
.col-table .t-em { font-weight:700; color:var(--c-navy); }
.col-table .t-right { text-align:right; white-space:nowrap; }
.col-table .t-sub {
  font-size:12px;
  color:var(--c-text-muted);
  display:block;
  margin-top:2px;
}
.col-table .t-total { background:var(--c-navy-pale); font-weight:700; }
.col-table .t-up { color:#2E7D32; font-weight:700; }
.col-table-scroll { overflow-x:auto; margin:20px -20px 28px; padding:0 20px; }
.col-table-scroll .col-table-wrap {
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  margin:20px 0 28px;
  position:relative;
}

/* --- Data Highlight --- */
.col-data-highlight {
  background:var(--c-navy);
  border-radius:var(--radius);
  padding:28px 24px;
  text-align:center;
  margin:28px 0;
}
.col-data-highlight p { color:#fff; }
.col-data-highlight-label { font-size:13px; color:#fff; margin-bottom:8px; }
.col-data-highlight-num {
  font-family:var(--font-display);
  font-size:40px;
  font-weight:800;
  color:#fff;
}
.col-data-highlight-num span { font-size:18px; }
.col-data-highlight-sub { font-size:13px; color:rgba(255,255,255,0.95); margin-top:8px; }

/* --- Calc Box --- */
.col-calc-box {
  background:var(--c-bg);
  border-radius:var(--radius);
  padding:24px 20px;
  margin:24px 0;
}
.col-calc-title {
  font-size:14px;
  font-weight:700;
  color:var(--c-navy);
  margin-bottom:16px;
}
.col-calc-row {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:8px 0;
  font-size:14px;
  line-height:1.6;
  color:var(--c-text-sub);
}
.col-calc-label { flex:1; }
.col-calc-val { font-weight:700; color:var(--c-text); white-space:nowrap; }
.col-calc-val.highlight { color:var(--c-navy); }
.col-calc-divider { border:none; border-top:2px solid var(--c-navy); margin:12px 0; }
.col-calc-val.gold { color:var(--c-gold); font-size:18px; }

/* --- Simulation Result --- */
.col-sim-title {
  font-size:15px;
  font-weight:700;
  color:var(--c-navy);
  margin-bottom:16px;
  text-align:center;
}
.col-sim-result {
  text-align:center;
  margin-top:16px;
  padding-top:16px;
  border-top:2px solid var(--c-navy-pale);
}
.col-sim-result-label { font-size:13px; color:var(--c-text-muted); margin-bottom:4px; }
.col-sim-result-num {
  font-family:var(--font-display);
  font-size:32px;
  font-weight:800;
  color:var(--c-navy);
}
.col-sim-result-num span { font-size:16px; }

/* --- Type Card --- */
.col-type-card {
  background:var(--c-white);
  border:1px solid var(--c-border);
  border-radius:var(--radius);
  padding:20px;
}
.col-type-card-title {
  font-size:15px;
  font-weight:700;
  color:var(--c-navy);
  margin-bottom:10px;
  display:flex;
  align-items:center;
  gap:8px;
}
.col-type-card p {
  font-size:14px;
  color:var(--c-text-sub);
  line-height:1.8;
  margin-bottom:0;
}

/* --- Area Guide (ku) --- */
.col-ku-header {
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:16px;
}
.col-ku-name {
  font-size:18px;
  font-weight:800;
  color:var(--c-navy);
  font-family:var(--font-display);
}
.col-ku-data {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:8px;
  margin-bottom:16px;
}
.col-ku-data-item { background:var(--c-bg); border-radius:8px; padding:10px 12px; }
.col-ku-data-label { font-size:12px; color:var(--c-text-muted); margin-bottom:2px; }
.col-ku-data-val { font-size:15px; font-weight:700; color:var(--c-text); }
.col-ku-comment { font-size:14px; color:var(--c-text-sub); line-height:1.8; }

/* --- Case Article --- */
.case-summary {
  background:var(--c-navy-pale);
  border-radius:var(--radius);
  padding:24px 20px;
  margin-bottom:32px;
}
.case-summary-title {
  font-size:14px;
  font-weight:700;
  color:var(--c-navy);
  margin-bottom:12px;
}
.case-summary dl {
  display:grid;
  grid-template-columns:auto 1fr;
  gap:6px 12px;
  font-size:14px;
}
.case-summary dt { color:var(--c-text-muted); font-weight:500; }
.case-summary dd { color:var(--c-text); font-weight:600; }
.case-result {
  background:var(--c-white);
  border:2px solid var(--c-gold-light);
  border-radius:var(--radius);
  padding:24px 20px;
  margin:32px 0;
  text-align:center;
}
.case-result-label {
  font-size:13px;
  font-weight:600;
  color:var(--c-gold);
  margin-bottom:8px;
}
.case-result-num {
  font-family:var(--font-display);
  font-size:36px;
  font-weight:800;
  color:var(--c-navy);
  line-height:1.3;
}
.case-result-num span { font-size:16px; font-weight:600; }
.case-result-sub { font-size:14px; color:var(--c-text-sub); margin-top:8px; }
.case-timeline { margin:24px 0; }
.case-tl-item {
  display:flex;
  gap:14px;
  padding-bottom:24px;
  position:relative;
}
.case-tl-dot {
  width:32px;
  height:32px;
  border-radius:50%;
  background:var(--c-navy);
  color:#fff;
  font-size:13px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}
.case-tl-content h3 { font-size:15px; font-weight:700; margin-bottom:4px; }
.case-tl-content p {
  font-size:14px;
  color:var(--c-text-sub);
  line-height:1.8;
  margin-bottom:0;
}

/* --- Mid-CTA --- */
.col-mid-cta {
  background:linear-gradient(135deg,var(--c-navy) 0%,var(--c-navy-mid) 100%);
  border-radius:var(--radius);
  padding:36px 24px;
  margin:32px 0;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.col-mid-cta::before {
  content:'';
  position:absolute;
  top:-40px;
  right:-40px;
  width:120px;
  height:120px;
  border-radius:50%;
  background:rgba(255,255,255,0.04);
}
.col-mid-cta-label {
  display:inline-block;
  font-size:12px;
  font-weight:700;
  letter-spacing:0.1em;
  color:var(--c-gold-light);
  border:1px solid rgba(212,176,106,0.4);
  border-radius:20px;
  padding:3px 14px;
  margin-bottom:14px;
}
.col-mid-cta-title {
  font-family:var(--font-display);
  font-size:22px;
  font-weight:800;
  color:#fff;
  line-height:1.6;
  margin-bottom:12px;
}
.col-mid-cta-text {
  font-size:14px;
  color:rgba(255,255,255,0.75);
  margin-bottom:20px;
  line-height:1.9;
}
.col-mid-cta .btn-gold {
  display:inline-block;
  background:var(--c-gold);
  color:#fff;
  font-size:15px;
  font-weight:700;
  padding:14px 32px;
  border-radius:var(--radius);
  text-decoration:none;
}
.col-mid-cta .btn-gold-sub {
  display:block;
  font-size:12px;
  font-weight:500;
  opacity:0.8;
  margin-top:2px;
}

/* --- Responsive --- */
@media (max-width:600px) {
  .col-table-scroll-hint { display:block; }
}

/* --- Tablet (600px+) --- */
@media (min-width:600px) {
  .article-title { font-size:24px; }
  .article-body h2 { font-size:21px; }
  .article-body h3 { font-size:17px; }
  .article-body p  { font-size:17px; }
  .col-toc-title { font-size:15px; }
  .col-toc li { font-size:15px; }
  .col-point-title, .col-note-title, .col-trap-title { font-size:15px; }
  .col-point p, .col-note p, .col-trap p { font-size:16px; }
  .col-quote p { font-size:17px; }
  .col-table { font-size:15px; }
  .col-type-card-title { font-size:16px; }
  .col-type-card p { font-size:15px; }
  .col-calc-title { font-size:15px; }
  .col-calc-row { font-size:15px; }
  .col-mid-cta-title { font-size:24px; }
  .col-mid-cta-text { font-size:16px; }
  .col-mid-cta .btn-gold { font-size:16px; }
  .case-summary dl { font-size:15px; }
  .case-summary-title { font-size:15px; }
  .case-tl-content h3 { font-size:16px; }
  .case-tl-content p { font-size:16px; }
  .col-ku-name { font-size:20px; }
  .col-ku-data-val { font-size:16px; }
  .col-ku-comment { font-size:16px; }
  .col-sim-title { font-size:16px; }
}

/* --- Desktop (900px+) --- */
@media (min-width:900px) {
  .article-header { padding:120px 0 40px; }
  .article-title { font-size:26px; }
  .article-body h2 { font-size:23px; }
  .article-body h3 { font-size:18px; }
  .article-body p  { font-size:18px; }
  .col-point p, .col-note p, .col-trap p { font-size:17px; }
  .col-quote p { font-size:18px; }
  .col-table { font-size:15px; }
  .col-type-card-title { font-size:17px; }
  .col-type-card p { font-size:16px; }
  .col-calc-row { font-size:16px; }
  .col-mid-cta-title { font-size:26px; }
  .col-mid-cta-text { font-size:17px; }
  .col-ku-name { font-size:22px; }
  .col-ku-comment { font-size:16px; }
  .col-sim-title { font-size:17px; }
  .case-tl-content h3 { font-size:17px; }
  .case-tl-content p { font-size:16px; }
  .case-result-num { font-size:40px; }
}

/* --- CTA staff card (case articles) --- */
.cta-staff-card { display: flex; align-items: center; gap: 12px; background: rgba(255,255,255,0.1); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 20px; }
.cta-staff-card__avatar { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; flex-shrink: 0; border: 2px solid rgba(255,255,255,0.3); }
.cta-staff-card__info { font-size: 14px; color: rgba(255,255,255,0.9); line-height: 1.5; }
.cta-staff-card__name { display: block; font-size: 15px; color: #fff; font-weight: 600; }
.cta-staff-card__link { color: var(--c-gold-light); font-size: 13px; }
@media(min-width:900px) {
  .cta-staff-card__avatar { width: 64px; height: 64px; }
}

/* --- Other shared rules --- */