/* =============================================
   Shop Board LP - Column (オウンドメディア) Stylesheet
   style.css の後に読み込む前提。nav / footer / btn /
   container / section-* などの共通クラスは style.css を再利用する。
   ============================================= */

/* --- カテゴリ配色（ピラー別） --- */
:root {
  --col-pillarA: #2563EB; /* 出品・運用ガイド */
  --col-pillarB: #E8603A; /* 利益・運用（ブランドカラー） */
  --col-pillarC: #059669; /* ツール比較 */
}

/* 固定ナビ（高さ約73px）分の余白を確保 */
.col-page { padding-top: 73px; }

/* --- パンくず --- */
.breadcrumb {
  font-size: 13px;
  color: var(--color-gray);
  padding: 24px 0 8px;
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.breadcrumb li { display: flex; align-items: center; }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--color-gray-light);
}
.breadcrumb [aria-current="page"] { color: var(--color-gray-dark); }

/* =============================================
   記事一覧（hub）
   ============================================= */
.col-hero {
  background: var(--color-bg-soft);
  border-bottom: 1px solid var(--color-border);
  padding: 129px 0 64px; /* 73px(固定ナビ) + 56px */
  text-align: center;
}
.col-hero__title {
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 900;
  letter-spacing: -0.02em;
}
.col-hero__title .accent { color: var(--color-primary); }
.col-hero__desc {
  margin-top: 16px;
  color: var(--color-gray);
  font-size: 16px;
}

.col-section { padding: 56px 0; }
.col-section + .col-section { padding-top: 0; }

.col-pillar-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-border);
}
.col-pillar-head__mark {
  width: 6px;
  height: 28px;
  border-radius: 100px;
  background: var(--col-pillarB);
}
.col-pillar-head h2 {
  font-size: 22px;
  font-weight: 800;
}
.col-pillar-head p {
  font-size: 13px;
  color: var(--color-gray);
}
.col-pillar--a .col-pillar-head__mark { background: var(--col-pillarA); }
.col-pillar--c .col-pillar-head__mark { background: var(--col-pillarC); }

.col-card-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.col-card {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: #fff;
  overflow: hidden;
  transition: all var(--transition);
}
.col-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.col-card__body { padding: 22px 0 22px 26px; display: flex; flex-direction: column; flex: 1; }
.col-card__badge {
  align-self: flex-start;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--col-pillarB);
  background: var(--color-primary-pale);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 14px;
}
.col-card--a .col-card__badge { color: var(--col-pillarA); background: #EAF1FE; }
.col-card--c .col-card__badge { color: var(--col-pillarC); background: #E7F6F0; }
.col-card__title {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: -0.01em;
}
.col-card__excerpt {
  margin-top: 10px;
  font-size: 14px;
  color: var(--color-gray);
  line-height: 1.7;
  flex: 1;
}
.col-card__more {
  margin: 0 26px 0 0;
  flex-shrink: 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}
.col-card__more i { transition: transform var(--transition); }
.col-card:hover .col-card__more i { transform: translateX(4px); }

/* =============================================
   記事本文
   ============================================= */
.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 8px 0 64px;
}
.article__header { margin: 8px 0 32px; }
.article__badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--col-pillarB);
  background: var(--color-primary-pale);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.article__title {
  font-size: clamp(26px, 4.5vw, 36px);
  font-weight: 900;
  line-height: 1.4;
  letter-spacing: -0.02em;
}
.article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: 18px;
  font-size: 13px;
  color: var(--color-gray);
}
.article__meta time::before { content: "\f017"; font-family: "Font Awesome 6 Free"; font-weight: 400; margin-right: 6px; }
.article__author { display: flex; align-items: center; gap: 8px; }
.article__author img, .article__author .article__author-mark {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--color-primary-pale); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800;
}

/* 本文タイポgrafi */
.article__body { font-size: 16px; color: var(--color-gray-dark); }
.article__body > p { margin: 0 0 20px; }
.article__body h2 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 48px 0 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
  scroll-margin-top: 84px;
}
.article__body h3 {
  font-size: 19px;
  font-weight: 800;
  margin: 32px 0 14px;
  padding-left: 12px;
  border-left: 4px solid var(--color-primary);
  scroll-margin-top: 84px;
}
.article__body ul, .article__body ol { margin: 0 0 20px; padding-left: 1.5em; }
.article__body ul { list-style: none; padding-left: 0; }
.article__body ul > li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 10px;
}
.article__body ul > li::before {
  content: "\f058";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--color-primary);
  position: absolute;
  left: 0;
  top: 1px;
}
.article__body ol { list-style: decimal; }
.article__body ol > li { margin-bottom: 10px; padding-left: 4px; }
.article__body a { color: var(--color-primary); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.article__body strong { font-weight: 800; }

/* 本文内のボタンは本文リンクの色/下線を打ち消す */
.article__body a.btn { text-decoration: none; font-weight: 700; }
.article__body a.btn--primary { color: #fff; }
.article__body a.btn--white { color: var(--color-primary); }
.article__body a.btn--ghost { color: var(--color-gray-dark); }

/* 表 */
.article__body .table-wrap { overflow-x: auto; margin: 0 0 24px; }
.article__body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 480px;
}
.article__body th, .article__body td {
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  text-align: left;
}
.article__body thead th {
  background: var(--color-bg-soft);
  font-weight: 700;
  white-space: nowrap;
}
.article__body tbody tr:nth-child(even) { background: #FCFCFD; }

/* 注意・ポイントボックス */
.note {
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  background: var(--color-primary-pale);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin: 0 0 24px;
  font-size: 15px;
}
.note__label {
  display: block;
  font-weight: 800;
  font-size: 13px;
  color: var(--color-primary-dark);
  margin-bottom: 6px;
}
.note--warn { border-left-color: #D97706; background: #FFFBEB; }
.note--warn .note__label { color: #B45309; }

/* 図版 */
.article__body figure { margin: 0 0 28px; }
.article__body figure img {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.article__body figcaption {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-gray);
  text-align: center;
}

/* リード文 */
.article__lead {
  font-size: 17px;
  line-height: 1.9;
  color: var(--color-gray-dark);
  margin: 0 0 8px;
}

/* --- 目次 --- */
.toc {
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  margin: 0 0 40px;
}
.toc__title {
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 12px;
}
.toc__title i { color: var(--color-primary); margin-right: 8px; }
.toc ol { list-style: none; counter-reset: toc; }
.toc li { counter-increment: toc; margin-bottom: 8px; font-size: 14px; }
.toc li::before { content: counter(toc) ". "; color: var(--color-primary); font-weight: 700; }
.toc a { color: var(--color-gray-dark); }
.toc a:hover { color: var(--color-primary); text-decoration: underline; }

/* --- 記事内CTA --- */
.article-cta {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: var(--radius-lg);
  padding: 32px;
  color: #fff;
  text-align: center;
  margin: 40px 0;
  box-shadow: 0 10px 30px rgba(232,96,58,0.3);
}
.article-cta__title { font-size: 20px; font-weight: 800; line-height: 1.5; }
.article-cta__desc { margin: 12px 0 22px; font-size: 14px; opacity: 0.95; }
.article-cta--soft {
  background: #fff;
  border: 1px solid var(--color-border);
  color: var(--color-gray-dark);
  box-shadow: var(--shadow-sm);
}
.article-cta--soft .article-cta__title { color: var(--color-black); }
.article-cta--soft .article-cta__desc { color: var(--color-gray); opacity: 1; }

/* --- 関連記事 --- */
.related {
  border-top: 1px solid var(--color-border);
  padding-top: 40px;
  margin-top: 48px;
}
.related__title { font-size: 18px; font-weight: 800; margin-bottom: 20px; }

/* 記事本文内に置くカードは本文タイポ(a下線・h3ボーダー)の影響を打ち消す */
.article__body .col-card { text-decoration: none; }
.article__body .col-card__title {
  border-left: 0;
  padding-left: 0;
  margin: 0;
  font-size: 17px;
}
.article__body .col-card__excerpt { margin: 10px 0 0; }
.article__body .col-card ul,
.article__body .col-card li { margin: 0; padding: 0; }

/* --- レスポンシブ --- */
@media (max-width: 768px) {
  .col-card { flex-direction: column; align-items: stretch; gap: 0; }
  .col-card__body { padding: 20px 20px 0; }
  .col-card__more { margin: 14px 20px 20px; }
  .col-hero { padding: 105px 0 44px; } /* 73px(固定ナビ) + 32px */
  .article__body h2 { font-size: 21px; }
  .article__body h3 { font-size: 17px; }
  .article-cta { padding: 26px 20px; }
}