/* 購入仲介とは？ページのスタイル */

/* ヘッダー */
.about-header {
  background: white;
  border-bottom: 1px solid #e0e0e0;
  position: sticky;
  top: 0;
  z-index: 100;
}

/* パンくずリスト */
.breadcrumb {
  background: #f8f8f8;
  padding: 15px 0;
  font-size: 14px;
}

.breadcrumb a {
  color: #666;
  text-decoration: none;
}

.breadcrumb a:hover {
  color: #E60012;
}

/* メインコンテンツ */
.about-main {
  padding: 60px 20px;
  background: white;
  min-height: calc(100vh - 300px);
}

.page-title {
  font-size: 36px;
  font-weight: bold;
  margin-bottom: 20px;
  color: #333;
  text-align: center;
}

.page-lead {
  font-size: 16px;
  color: #666;
  text-align: center;
  margin-bottom: 60px;
  line-height: 1.8;
}

/* 用語コンテナ */
.terms-container {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 40px;
  max-width: 1000px;
  margin: 0 auto;
}

/* 用語ナビゲーション */
.terms-nav {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.terms-nav h2 {
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #E60012;
}

.terms-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.terms-list li {
  margin-bottom: 12px;
}

.terms-list a {
  color: #333;
  text-decoration: none;
  font-size: 15px;
  display: block;
  padding: 8px 15px;
  border-radius: 4px;
  transition: all 0.3s;
}

.terms-list a:hover {
  background: #f8f8f8;
  color: #E60012;
  padding-left: 20px;
}

/* 用語コンテンツ */
.terms-content {
  background: white;
}

.term-item {
  padding: 30px 0;
  border-bottom: 1px solid #e0e0e0;
}

.term-item:first-child {
  padding-top: 0;
}

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

.term-title {
  display: flex;
  align-items: baseline;
  gap: 15px;
  margin-bottom: 15px;
}

.term-main {
  font-size: 24px;
  font-weight: bold;
  color: #333;
}

.term-reading {
  font-size: 14px;
  color: #666;
  font-weight: normal;
}

.term-description {
  font-size: 16px;
  line-height: 1.8;
  color: #444;
}

/* 関連セクション */
.related-section {
  margin-top: 80px;
  padding-top: 60px;
  border-top: 2px solid #e0e0e0;
}

.related-section h2 {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 30px;
  text-align: center;
}

.related-links {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.related-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 25px;
  background: #f8f8f8;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.3s;
}

.related-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.card-icon {
  font-size: 48px;
  flex-shrink: 0;
}

.card-info h3 {
  font-size: 18px;
  font-weight: bold;
  color: #333;
  margin-bottom: 8px;
}

.card-info p {
  font-size: 14px;
  color: #666;
  margin: 0;
}

/* フッター */
.about-footer {
  background: #333;
  color: white;
  padding: 40px 0;
  text-align: center;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer-logo {
  font-size: 20px;
  font-weight: bold;
  margin-bottom: 20px;
}

.footer-nav {
  margin-bottom: 20px;
}

.footer-nav a {
  color: white;
  text-decoration: none;
  margin: 0 15px;
  font-size: 14px;
}

.footer-nav a:hover {
  text-decoration: underline;
}

.footer-company {
  font-size: 14px;
  color: #ccc;
  margin-bottom: 10px;
}

.copyright {
  font-size: 12px;
  color: #999;
}

/* レスポンシブ */
@media (max-width: 768px) {
  .terms-container {
    grid-template-columns: 1fr;
  }
  
  .terms-nav {
    position: static;
    margin-bottom: 40px;
    background: #f8f8f8;
    padding: 20px;
    border-radius: 8px;
  }
  
  .terms-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .terms-list a {
    font-size: 14px;
    padding: 6px 10px;
  }
  
  .page-title {
    font-size: 28px;
  }
  
  .term-main {
    font-size: 20px;
  }
  
  .related-links {
    grid-template-columns: 1fr;
  }
  
  .related-card {
    flex-direction: column;
    text-align: center;
  }
}