/* Wireframe共通スタイル */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Helvetica Neue", Arial, "Hiragino Sans", sans-serif; background: #f5f5f5; color: #333; }

/* ワイヤーフレーム注釈 */
.wf-note {
  background: #fff3cd; border: 1px solid #ffc107; border-radius: 4px;
  padding: 12px 16px; margin: 16px auto; max-width: 1200px;
  font-size: 13px; color: #856404;
}
.wf-note strong { color: #664d03; }

/* ヘッダー */
.header {
  background: #fff; border-bottom: 3px solid #1a3a5c;
  padding: 16px 32px; display: flex; align-items: center; justify-content: space-between;
}
.header-logo {
  display: flex; align-items: center; gap: 12px;
}
.header-logo .logo-placeholder {
  width: 48px; height: 48px; background: #ddd; border-radius: 4px;
  display: flex; align-items: center; justify-content: center; font-size: 10px; color: #999;
}
.header-logo .site-title {
  font-size: 18px; font-weight: bold; color: #1a3a5c;
}
.header-logo .site-subtitle {
  font-size: 12px; color: #666;
}
.header-nav { display: flex; gap: 24px; }
.header-nav a {
  text-decoration: none; color: #555; font-size: 14px;
  padding: 4px 8px; border-radius: 4px;
}
.header-nav a.active { color: #1a3a5c; font-weight: bold; border-bottom: 2px solid #1a3a5c; }

/* フッター */
.footer {
  background: #1a3a5c; color: #ccc; padding: 32px;
  text-align: center; font-size: 12px; margin-top: 48px;
}

/* コンテナ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* プレースホルダ */
.placeholder {
  background: #e0e0e0; border: 2px dashed #bbb; border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  color: #888; font-size: 12px; text-align: center;
}

/* セクション見出し */
.section-title {
  font-size: 20px; font-weight: bold; color: #1a3a5c;
  margin: 32px 0 16px; padding-bottom: 8px; border-bottom: 2px solid #e0e0e0;
}

/* タグ */
.tag {
  display: inline-block; padding: 4px 10px; border-radius: 16px;
  font-size: 12px; margin: 2px 4px 2px 0;
}
.tag-research { background: #e3f2fd; color: #1565c0; }
.tag-social { background: #e8f5e9; color: #2e7d32; }
.tag-keyword { background: #f3e5f5; color: #6a1b9a; }

/* ページタイトル */
.page-label {
  background: #1a3a5c; color: #fff; text-align: center;
  padding: 12px; font-size: 14px; letter-spacing: 2px;
}