/* ページ種別「article」専用スタイル（旧HTMLのインライン<style>を統合・重複除去） */

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  max-width: 1160px;
  margin: 0 auto;
  padding: 20px;
}

.article-title-block {
  background: white;
  padding: 32px 40px 24px;
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 4px 4px 0 0;
  margin-bottom: 0;
}

.article-title-block .cat-tag {
  display: inline-block;
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 10px;
  font-family: inherit;
}

.article-title-block h1 {
  font-family: inherit;
  font-size: 26px;
  line-height: 1.55;
  margin-bottom: 12px;
  font-weight: 700;
  color: var(--text);
}

.article-meta-line {
  display: flex;
  gap: 20px;
  font-size: 12px;
  color: var(--muted);
  font-family: inherit;
}

.article-main {
  background: white;
  padding: 32px 40px 48px;
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 4px 4px;
}

.lead {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 32px;
}

.data-highlight {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 28px 24px;
  margin: 24px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.data-cell {
  text-align: center;
  border-right: 1px solid var(--border);
  padding-right: 20px;
}

.data-cell:last-child { border-right: none; padding-right: 0; }

.data-cell .num {
  font-family: inherit;
  font-size: 32px;
  font-weight: 600;
  color: var(--primary-dark);
  line-height: 1.2;
  letter-spacing: 0;
}

.data-cell .unit {
  font-size: 14px;
  color: var(--text-sub);
  font-family: inherit;
}

.data-cell .label {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
  font-family: inherit;
}

.source-note {
  font-size: 11px;
  color: var(--muted);
  font-style: italic;
  margin-top: -8px;
  margin-bottom: 20px;
  font-family: inherit;
}

.side {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: sticky;
  top: 100px;
  align-self: start;
}

.side-block {
  padding: 0 0 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.side-block:last-child { border-bottom: none; }

.side-block h4 {
  font-size: 14px;
  padding-bottom: 8px;
  margin-bottom: 12px;
  color: var(--text);
  border-bottom: 2px solid var(--primary);
  display: inline-block;
  font-family: inherit;
  font-weight: 700;
}

.side-rank-item {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dotted var(--border);
  align-items: center;
  text-decoration: none;
  color: inherit;
  font-family: inherit;
}

.side-rank-item:last-child { border-bottom: none; }

.side-rank-item:hover { text-decoration: none; color: var(--primary-dark); }

.side-rank-num {
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
  font-family: inherit;
}

.side-rank-item .n { font-size: 13px; font-weight: 700; }

.side-rank-item .s { font-size: 11px; color: var(--muted); }

.table-wrap { overflow-x: auto; margin: 16px -4px; padding: 0 4px; }

.article-cta {
  margin: 32px 0;
  padding: 28px 20px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.article-cta p { margin-bottom: 12px; font-size: 15px; }

.column-box {
  border-left: 3px solid var(--muted);
  padding: 4px 0 4px 16px;
  margin: 24px 0;
  color: var(--text-sub);
}

.column-box .clabel {
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 0.15em;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 6px;
}

.column-box p { margin: 0 0 8px; font-size: 14px; }

/* トラブル事例カード（罫線区切り版） */
.case-block {
  border-top: 1px solid var(--border);
  padding: 24px 16px;
  margin: 0;
}

.case-block:last-of-type { border-bottom: 1px solid var(--border); }

.case-block .case-tag {
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-dark);
  margin-bottom: 8px;
}

.case-block .case-title {
  font-family: inherit;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
  letter-spacing: 0.02em;
}

.case-block .case-body {
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 8px;
}

.case-block .case-meta {
  font-size: 11px;
  color: var(--muted);
  font-family: inherit;
}

/* チェックリスト */
.checklist {
  padding: 0;
  list-style: none;
  margin: 20px 0;
}

.checklist li {
  padding: 12px 0 12px 32px;
  border-bottom: 1px dotted var(--border);
  position: relative;
  font-size: 14px;
  line-height: 1.8;
}

.checklist li:last-child { border-bottom: none; }

.checklist li::before {
  content: "□";
  position: absolute;
  left: 0;
  top: 12px;
  color: var(--primary);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

.checklist li strong { font-weight: 700; color: var(--text); }

@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; padding: 12px; }

.article-title-block h1 { font-size: 22px; }

.side { position: static; }

.data-highlight { grid-template-columns: 1fr; gap: 12px; }

.data-cell { border-right: none; border-bottom: 1px solid var(--border); padding-bottom: 12px; padding-right: 0; }

.data-cell:last-child { border-bottom: none; }

.data-cell .num { font-size: 26px; }

@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; padding: 12px; }
  .article-title-block h1 { font-size: 22px; }
  .side { position: static; }
  .data-highlight { grid-template-columns: 1fr; gap: 12px; }
  .data-cell { border-right: none; border-bottom: 1px solid var(--border); padding-bottom: 12px; padding-right: 0; }
  .data-cell:last-child { border-bottom: none; }
  .data-cell .num { font-size: 26px; }
}

.article-title-block h1 {
  font-size: 28px;
  line-height: 1.6;
  margin-bottom: 14px;
  font-weight: 600;
}

/* 導入リード */
.lead {
  font-size: 15px;
  line-height: 2;
  color: var(--text-sub);
  margin-bottom: 32px;
  padding: 0;
}

/* データボックス */
.data-highlight {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 28px 24px;
  margin: 24px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* サイドバー */
.side {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: sticky;
  top: 100px;
  align-self: start;
}

/* 本文内テーブル横スクロール */
.table-wrap { overflow-x: auto; margin: 16px -4px; padding: 0 4px; }

/* 記事内CTAブロック */
.article-cta {
  margin: 32px 0;
  padding: 28px 20px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* コラム */
.column-box {
  border-left: 3px solid var(--muted);
  padding: 4px 0 4px 16px;
  margin: 24px 0;
  color: var(--text-sub);
}

.data-cell .num {
  font-family: inherit;
  font-size: 30px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.2;
  letter-spacing: 0;
}

/* ステップ */
.step-block {
  border-top: 1px solid var(--border);
  padding: 24px 0 20px;
}

.step-block:last-of-type { border-bottom: 1px solid var(--border); }

.step-block .step-num-label {
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.15em;
  margin-bottom: 4px;
  font-family: inherit;
}

.step-block .step-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.step-block p { margin-bottom: 8px; font-size: 14px; line-height: 1.9; }

.step-block .step-tips {
  margin-top: 10px;
  padding-left: 18px;
  font-size: 13px;
  color: var(--text-sub);
}

.step-block .step-tips li { margin-bottom: 4px; }

/* エンディングノート項目テーブル */
.note-item-list {
  padding: 0;
  list-style: none;
  margin: 20px 0;
}

.note-item-list li {
  padding: 10px 0;
  border-bottom: 1px dotted var(--border);
  font-size: 14px;
  line-height: 1.7;
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 16px;
}

.note-item-list li:last-child { border-bottom: none; }

.note-item-list .cat {
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 13px;
}

.data-cell .num { font-size: 24px; }

.note-item-list li { grid-template-columns: 1fr; gap: 4px; }

@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; padding: 12px; }
  .article-title-block h1 { font-size: 22px; }
  .side { position: static; }
  .data-highlight { grid-template-columns: 1fr; gap: 12px; }
  .data-cell { border-right: none; border-bottom: 1px solid var(--border); padding-bottom: 12px; padding-right: 0; }
  .data-cell:last-child { border-bottom: none; }
  .data-cell .num { font-size: 24px; }
  .note-item-list li { grid-template-columns: 1fr; gap: 4px; }
}

.article-title-block .cat-tag {
  display: inline-block;
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 10px;
}

.article-meta-line {
  display: flex;
  gap: 20px;
  font-size: 12px;
  color: var(--muted);
}

.lead {
  font-size: 16px;
  line-height: 1.95;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 32px;
}

.data-highlight {
  background: var(--primary-pale);
  border-radius: 4px;
  padding: 24px 20px;
  margin: 24px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  border: 1px solid var(--border);
}

.data-cell .num {
  font-family: inherit;
  font-size: 30px;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.2;
}

.data-cell .unit {
  font-size: 14px;
  color: var(--text-sub);
}

.data-cell .label {
  font-size: 12px;
  color: var(--muted);
  margin-top: 6px;
}

.source-note {
  font-size: 11px;
  color: var(--muted);
  font-style: italic;
  margin-top: -8px;
  margin-bottom: 20px;
}

.article-cta {
  margin: 32px 0;
  padding: 24px 28px;
  background: linear-gradient(135deg, var(--primary-pale) 0%, #fff 100%);
  border: 2px solid var(--primary);
  border-radius: 4px;
}

.column-box {
  background: var(--primary-pale);
  border-left: 4px solid var(--primary);
  padding: 16px 22px;
  margin: 24px 0;
  color: var(--text-sub);
  border-radius: 4px;
}

.column-box .clabel {
  font-size: 11px;
  letter-spacing: 0.15em;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 6px;
}

@media (max-width: 900px) {
  .article-layout { grid-template-columns: 1fr; padding: 12px; }
  .side { position: static; }
  .data-highlight { grid-template-columns: 1fr; gap: 12px; }
  .data-cell { border-right: none; border-bottom: 1px solid var(--border); padding-bottom: 12px; padding-right: 0; }
  .data-cell:last-child { border-bottom: none; }
  .data-cell .num { font-size: 24px; }
}

.data-cell .num { font-size: 30px; font-weight: 700; color: var(--primary-dark); line-height: 1.2; }