/* ARROW pro コラム 共通スタイル */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700&family=Poppins:wght@700&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: #333;
  background: #fff;
}

/* ヘッダー */
.col-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  border-bottom: 2px solid #00AFCC;
}

.col-header__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: #00AFCC;
}

.col-header__logo img {
  width: 22px;
  height: auto;
  filter: invert(55%) sepia(80%) saturate(500%) hue-rotate(150deg) brightness(95%);
}

.col-header__logo-text {
  font-family: 'Poppins', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.col-header__divider {
  color: #ccc;
  font-size: 14px;
}

.col-header__label {
  font-size: 13px;
  color: #888;
}

/* メインコンテンツ */
.col-container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

/* 2カラムレイアウト */
.col-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 56px;
  align-items: start;
}

/* サイドバー */
.col-sidebar {
  position: sticky;
  top: 24px;
}

/* 目次 */
.toc {
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 16px 20px;
  margin-bottom: 24px;
  background: #fafafa;
}
.toc-title {
  font-size: 13px;
  font-weight: 700;
  color: #333;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid #e5e5e5;
}
.toc ol {
  padding-left: 0;
  margin: 0;
  list-style: none;
  counter-reset: toc;
}
.toc li {
  margin-bottom: 10px;
  font-size: 13px;
  line-height: 1.5;
  counter-increment: toc;
  display: flex;
  gap: 8px;
  align-items: baseline;
}
.toc li::before {
  content: counter(toc);
  font-size: 11px;
  font-weight: 700;
  background: #333;
  color: #fff;
  width: 18px;
  height: 18px;
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.toc a {
  color: #444;
  text-decoration: none;
}
.toc a:hover { color: #111; text-decoration: underline; }

/* 関連記事 */
.related-articles {
  margin-bottom: 24px;
}
.related-articles-title {
  font-size: 13px;
  font-weight: 700;
  color: #333;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid #e5e5e5;
}
.related-articles ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.related-articles li {
  margin-bottom: 10px;
  font-size: 13px;
  line-height: 1.5;
}
.related-articles a {
  color: #1a6fa0;
  text-decoration: none;
}
.related-articles a:hover {
  color: #111;
  text-decoration: underline;
}
.related-articles .current {
  color: #333;
  font-weight: 700;
}

/* サイドバーCTA */
.sidebar-cta {
  background: #f0f8ff;
  border: 1px solid #e0f2f8;
  border-radius: 8px;
  padding: 20px;
  text-align: center;
}
.sidebar-cta p {
  font-size: 12px;
  color: #555;
  margin-bottom: 12px;
}
.sidebar-cta a {
  display: block;
  background: #00AFCC;
  color: #fff;
  text-decoration: none;
  padding: 11px 16px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 700;
}
.sidebar-cta a:hover { background: #0098b3; }

/* 記事タイトル */
.col-container h1 {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
}

.col-meta {
  font-size: 13px;
  color: #888;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid #e5e5e5;
}

/* 見出し */
.col-container h2 {
  font-size: 19px;
  font-weight: 700;
  margin: 48px 0 16px;
  padding: 12px 16px;
  border-left: 5px solid #00AFCC;
  background: #f5f5f5;
  line-height: 1.5;
}

.col-container h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 32px 0 12px;
  padding-left: 12px;
  border-left: 4px solid #00AFCC;
}

/* 本文 */
.col-container p { margin-bottom: 16px; }
.col-container ul { padding-left: 0; margin-bottom: 16px; list-style: none; }
.col-container ul li {
  padding-left: 20px;
  position: relative;
  margin-bottom: 8px;
}
.col-container ul li::before {
  content: "▶";
  position: absolute;
  left: 0;
  color: #aaa;
  font-size: 10px;
  top: 6px;
}
.col-container ol { padding-left: 24px; margin-bottom: 16px; }
.col-container ol li { margin-bottom: 8px; }

/* テーブル */
.col-container table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 13px;
  line-height: 1.7;
}
.col-container th {
  padding: 10px 12px;
  text-align: left;
  border: none;
  border-bottom: 2px solid #1f2937;
  font-weight: 700;
  color: #1f2937;
}
.col-container td {
  padding: 12px 12px;
  border: none;
  border-bottom: 1px solid #e5e5e5;
  vertical-align: top;
  background: #fafafa;
}

/* 記事下の関連記事 */
.related-bottom {
  margin-top: 48px;
  padding: 24px 28px;
  border: 1px solid #e5e5e5;
  border-radius: 8px;
  background: #fafafa;
}
.related-bottom-title {
  font-size: 15px;
  font-weight: 700;
  color: #333;
  margin-bottom: 16px;
}
.related-bottom ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.related-bottom li {
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.6;
}
.related-bottom li:last-child {
  margin-bottom: 0;
}
.related-bottom a {
  color: #1a6fa0;
  text-decoration: none;
}
.related-bottom a:hover {
  color: #111;
  text-decoration: underline;
}
.related-bottom .current {
  color: #333;
  font-weight: 700;
}

/* CTA */
.col-cta {
  margin-top: 64px;
  padding: 32px;
  background: #f8f8f8;
  border-radius: 8px;
  text-align: center;
}
.col-cta p { margin-bottom: 16px; color: #444; font-size: 15px; }
.col-cta a {
  display: inline-block;
  background: #00AFCC;
  color: #fff;
  text-decoration: none;
  padding: 13px 36px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 600;
}
.col-cta a:hover { background: #0098b3; }

/* フッター */
.col-footer {
  margin-top: 64px;
  padding: 24px;
  border-top: 1px solid #e5e5e5;
  text-align: center;
  font-size: 12px;
  color: #aaa;
}
.col-footer a {
  color: #aaa;
  text-decoration: none;
}
.col-footer a:hover { color: #666; }

/* 著者ボックス */
.author-box {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  border-top: 2px solid #e5e5e5;
  padding-top: 24px;
  margin-top: 48px;
}
.author-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #f0f8ff;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.author-avatar img {
  filter: invert(55%) sepia(80%) saturate(500%) hue-rotate(150deg) brightness(95%);
}
.author-info { flex: 1; }
.author-label {
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: #888;
  display: inline-block;
  padding: 1px 8px;
  border-radius: 2px;
  margin-bottom: 6px;
}
.author-name {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 6px;
}
.author-bio {
  font-size: 12px;
  color: #666;
  line-height: 1.7;
  margin: 0;
}

/* ハイライトボックス */
.highlight-box {
  background: #f0f8ff;
  border: 1px solid #e0f2f8;
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 6px;
}
.highlight-box p { margin: 0; font-size: 15px; }

/* 比較カード */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 32px 0;
}
.compare-card {
  border: 2px solid #e5e5e5;
  border-radius: 8px;
  padding: 20px;
}
.compare-card.agent-card { border-color: #e6971a; }
.compare-card.direct-card { border-color: #4a7fee; }
.compare-card h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
}
.compare-card.agent-card h4 { color: #b56b00; }
.compare-card.direct-card h4 { color: #1a4ab5; }
.compare-card ul { padding-left: 16px; font-size: 14px; }
.compare-card li { margin-bottom: 6px; }

/* レスポンシブ */
@media (max-width: 900px) {
  .col-layout { grid-template-columns: 1fr; }
  .col-sidebar { position: static; display: none; }
}
@media (max-width: 600px) {
  .col-container h1 { font-size: 22px; }
  .col-container { padding: 32px 16px 64px; }
  .compare { grid-template-columns: 1fr; }
  .col-header { padding: 14px 16px; }
}