/* ============================================
   Template B: マガジン型
   - 1カラム（特集 + 3列グリッド）
   - 配色: 赤系 #c75450
   - フォント: Noto Serif JP（明朝）
   - 見出し: 背景帯（赤帯）
   - 一覧: 3列グリッド
   ============================================ */

:root {
  --feature-primary: #c75450;
  --feature-primary-dark: #9a3a36;
  --feature-accent: #f0c674;
  --feature-bg: #fffaf6;
  --feature-text: #2a2118;
  --feature-text-muted: #8a7868;
  --feature-border: #ead8c8;
}

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

html { font-size: 16px; }

body {
  font-family: 'Noto Serif JP', serif;
  background: var(--feature-bg);
  color: var(--feature-text);
  line-height: 1.85;
}

a { color: var(--feature-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ヘッダー */
.feature-header {
  background: #fff;
  padding: 1.5rem 0;
  border-bottom: 3px double var(--feature-primary);
}
.feature-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  text-align: center;
}
.feature-brand {
  font-size: 1.8rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  color: var(--feature-text);
}
.feature-brand a { color: inherit; }
.feature-tagline {
  font-size: 0.9rem;
  color: var(--feature-text-muted);
  margin-top: 0.4rem;
}
.feature-nav {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1rem;
}
.feature-nav a {
  color: var(--feature-text);
  font-size: 0.95rem;
  font-weight: 600;
}

/* メインビジュアル（特集） */
.feature-hero {
  background: linear-gradient(135deg, var(--feature-primary) 0%, var(--feature-primary-dark) 100%);
  color: #fff;
  padding: 3rem 2rem;
  margin: 2rem auto;
  max-width: 1200px;
  border-radius: 2px;
}
.feature-hero-label {
  display: inline-block;
  background: var(--feature-accent);
  color: var(--feature-primary-dark);
  padding: 0.3rem 0.8rem;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
}
.feature-hero-title {
  font-size: 1.8rem;
  font-weight: 900;
  line-height: 1.5;
  margin-bottom: 0.8rem;
}
.feature-hero-excerpt { font-size: 1rem; }
.feature-hero-link {
  color: #fff;
  border-bottom: 1px solid #fff;
  padding-bottom: 0.1rem;
}

/* レイアウト */
.feature-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* セクション見出し */
.feature-section-title {
  font-size: 1.4rem;
  font-weight: 900;
  background: var(--feature-primary);
  color: #fff;
  padding: 0.6rem 1.2rem;
  margin: 3rem 0 1.5rem;
  letter-spacing: 0.05em;
}

/* 記事グリッド */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
}
@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .feature-grid { grid-template-columns: 1fr; }
}

.feature-item {
  background: #fff;
  border: 1px solid var(--feature-border);
  padding: 1.4rem;
  transition: transform 0.2s;
}
.feature-item:hover { transform: translateY(-3px); }
.feature-item-cat {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--feature-primary);
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.feature-item-title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 0.6rem;
}
.feature-item-title a { color: var(--feature-text); }
.feature-item-date {
  font-size: 0.8rem;
  color: var(--feature-text-muted);
}

/* 記事ページ */
.feature-article {
  background: #fff;
  max-width: 800px;
  margin: 2rem auto;
  padding: 3rem 2.5rem;
  border-top: 4px solid var(--feature-primary);
}
.feature-article-cat {
  display: inline-block;
  background: var(--feature-primary);
  color: #fff;
  padding: 0.3rem 0.8rem;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}
.feature-article-title {
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.4;
  margin-bottom: 1rem;
}
.feature-article-meta {
  font-size: 0.9rem;
  color: var(--feature-text-muted);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--feature-border);
}
.feature-article-body { font-size: 1.05rem; }
.feature-article-body h2 {
  font-size: 1.5rem;
  font-weight: 900;
  background: var(--feature-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  margin: 3rem 0 1.2rem;
  line-height: 1.4;
}
.feature-article-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 2rem 0 0.8rem;
  padding: 0.3rem 0.8rem;
  background: var(--feature-accent);
  color: var(--feature-primary-dark);
}
.feature-article-body p { margin-bottom: 1.5rem; }
.feature-article-body img {
  max-width: 100%;
  height: auto;
  margin: 1.8rem 0;
}
.feature-article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.8rem 0;
}
.feature-article-body th,
.feature-article-body td {
  border: 1px solid var(--feature-border);
  padding: 0.7rem;
}
.feature-article-body th {
  background: var(--feature-primary);
  color: #fff;
}

/* CTA */
.feature-cta {
  background: var(--feature-accent);
  border-left: 6px solid var(--feature-primary);
  padding: 1.8rem;
  margin: 2.5rem 0;
}
.feature-cta-title {
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--feature-primary-dark);
  margin-bottom: 0.6rem;
}
.feature-cta-button {
  display: inline-block;
  background: var(--feature-primary);
  color: #fff;
  padding: 0.8rem 1.6rem;
  font-weight: 700;
  margin-top: 1rem;
}
.feature-cta-button:hover { background: var(--feature-primary-dark); text-decoration: none; }

/* パンくず */
.feature-breadcrumb {
  font-size: 0.85rem;
  color: var(--feature-text-muted);
  margin: 1rem 0 0;
}
.feature-breadcrumb a { color: var(--feature-text-muted); }
.feature-breadcrumb .sep { margin: 0 0.5rem; }

/* フッター */
.feature-footer {
  background: #2a2118;
  color: #c4b8a8;
  padding: 3rem 0 1.5rem;
  margin-top: 4rem;
  font-size: 0.9rem;
}
.feature-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}
.feature-footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
@media (max-width: 600px) {
  .feature-footer-grid { grid-template-columns: 1fr; }
}
.feature-footer h4 {
  font-size: 1rem;
  font-weight: 900;
  color: var(--feature-accent);
  margin-bottom: 0.8rem;
}
.feature-footer a { color: #d4c8b8; }
.feature-footer-copy {
  text-align: center;
  border-top: 1px solid #4a3e2e;
  padding-top: 1rem;
  color: #7a6d5e;
}