/* ========================================
   中古車購入ガイド - 新デザインCSS
   レスポンシブ対応
   ======================================== */

/* リセット */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* 基本設定 */
html {
  font-size: 16px;
}

body {
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif;
  line-height: 1.7;
  color: #333;
  background-color: #f5f5f5;
}

a {
  color: #0066cc;
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #cc3300;
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul {
  list-style: none;
}

/* コンテナ */
.container {
  max-width: 1000px;
  margin: 0 auto;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

/* ヘッダー */
.header {
  background-color: #003366;
  text-align: center;
  padding: 10px;
}

.header-img {
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}

/* コンテンツラッパー（Flexbox） */
.content-wrapper {
  display: flex;
  flex-wrap: wrap;
}

/* メインコンテンツ */
.main-content {
  flex: 1;
  min-width: 0;
  padding: 20px;
}

/* バナーリンク */
.banner-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 30px;
}

.banner-links a {
  display: block;
}

.banner-links img {
  width: 100%;
  max-width: 445px;
  border: 1px solid #ddd;
  border-radius: 4px;
  transition: opacity 0.2s;
}

.banner-links img:hover {
  opacity: 0.8;
}

/* カテゴリセクション */
.category-section {
  margin-bottom: 30px;
}

.category-title {
  background: linear-gradient(to right, #003366, #0066cc);
  color: #fff;
  font-size: 1.1rem;
  font-weight: bold;
  padding: 10px 15px;
  margin-bottom: 15px;
  border-radius: 4px;
}

.link-list li {
  border-bottom: 1px dotted #ccc;
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
}

.link-list li::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid #0066cc;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

.link-list li:last-child {
  border-bottom: none;
}

.link-list a {
  display: block;
}

/* ========================================
   記事ページ用スタイル
   ======================================== */

/* パンくずリスト */
.breadcrumb {
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 20px;
  padding: 10px 0;
  border-bottom: 1px dotted #ccc;
}

.breadcrumb a {
  color: #0066cc;
}

.breadcrumb a:hover {
  color: #cc3300;
}

/* 記事本文 */
.article {
  line-height: 1.8;
}

.article h1 {
  background: linear-gradient(to right, #003366, #0066cc);
  color: #fff;
  font-size: 1.2rem;
  padding: 12px 15px;
  margin-bottom: 20px;
  border-radius: 4px;
}

.article h2 {
  background-color: #fcfcaf;
  color: #000000;
  font-size: 1.1rem;
  padding: 10px 15px;
  margin: 25px 0 15px 0;
  border-left: 4px solid #666400;
}

.article h3 {
  color: #003366;
  font-size: 1rem;
  padding: 8px 0;
  margin: 20px 0 10px 0;
  border-bottom: 2px solid #0066cc;
}

.article p {
  margin-bottom: 1em;
}

.article img {
  margin: 15px auto;
  border-radius: 4px;
}

.article .img-right {
  float: right;
  margin: 0 0 15px 20px;
  max-width: 200px;
}

.article .img-left {
  float: left;
  margin: 0 20px 15px 0;
  max-width: 200px;
}

.article .clearfix::after {
  content: "";
  display: table;
  clear: both;
}

/* 次へボタン */
.next-link {
  display: inline-block;
  background: linear-gradient(to bottom, #0066cc, #003366);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 4px;
  margin-top: 30px;
  transition: opacity 0.2s;
}

.next-link:hover {
  opacity: 0.8;
  text-decoration: none;
}

/* 記事内リスト */
.article ul, .article ol {
  margin: 15px 0;
  padding-left: 25px;
}

.article ul {
  list-style: disc;
}

.article ol {
  list-style: decimal;
}

.article li {
  margin-bottom: 8px;
}

/* 強調ボックス */
.highlight-box {
  background-color: #fff8e5;
  border: 1px solid #ffcc00;
  border-radius: 4px;
  padding: 15px;
  margin: 20px 0;
}

.warning-box {
  background-color: #ffeaea;
  border: 1px solid #cc0000;
  border-radius: 4px;
  padding: 15px;
  margin: 20px 0;
}

/* 用語集インデックス */
.glossary-list {
  margin: 20px 0;
}

.glossary-item {
  background-color: #f9f9f9;
  border-left: 4px solid #0066cc;
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 0 4px 4px 0;
}

.glossary-item h3 {
  margin: 0 0 8px 0;
  padding: 0;
  border: none;
  font-size: 1rem;
}

.glossary-item h3 a {
  color: #003366;
  font-weight: bold;
}

.glossary-item h3 a:hover {
  color: #0066cc;
}

.glossary-item p {
  margin: 0;
  font-size: 0.9rem;
  color: #666;
  line-height: 1.6;
}

/* ========================================
   旧テーブルレイアウト互換スタイル
   ======================================== */

/* 記事内のテーブルをレスポンシブ化 */
.article table {
  width: 100% !important;
  max-width: 100%;
  border-collapse: collapse;
}

.article table td,
.article table th {
  display: block;
  width: 100% !important;
  padding: 8px 0;
}

.article table tr {
  display: block;
  margin-bottom: 10px;
}

/* 古いclass互換 */
.text12gray {
  font-size: 0.9rem;
  color: #333;
  line-height: 1.8;
}

.text12white {
  color: #fff;
}

.midashi {
  background: linear-gradient(to right, #003366, #0066cc);
  color: #fff;
  font-size: 1.1rem;
  font-weight: bold;
  padding: 10px 15px;
  border-radius: 4px;
  display: block;
  margin-bottom: 15px;
}

.midashi2 {
  background-color: #f0f5fa;
  color: #003366;
  font-size: 1rem;
  font-weight: bold;
  padding: 10px 15px;
  border-left: 4px solid #003366;
  display: block;
  margin: 15px 0;
}

/* 古い次へボタンのスタイル */
.article TABLE[border="0"] a.text12gray {
  display: inline-block;
  background: linear-gradient(to bottom, #0066cc, #003366);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 4px;
  text-decoration: none;
}

.article TABLE[border="0"] a.text12gray:hover {
  opacity: 0.8;
}

/* 古いボタン画像を非表示 */
.article img[src*="next_btn"],
.article img[src*="spacer"] {
  display: none;
}

/* 背景画像付きTDをクリーンアップ */
.article td[background] {
  background: none !important;
}

/* サイドバー */
.sidebar {
  width: 280px;
  background-color: #f9f9f9;
  padding: 20px;
  border-left: 1px solid #ddd;
}

.sidebar-section {
  margin-bottom: 25px;
}

.sidebar-title {
  background-color: #003366;
  color: #fff;
  font-size: 0.95rem;
  padding: 8px 12px;
  margin-bottom: 10px;
  border-radius: 4px;
}

.sidebar-menu li {
  border-bottom: 1px dotted #ccc;
  padding: 8px 5px;
  font-size: 0.9rem;
}

.sidebar-menu li:last-child {
  border-bottom: none;
}

/* メルマガ登録 */
.mailmag {
  background-color: #fff;
  border: 2px solid #003366;
  border-radius: 6px;
  padding: 15px;
  text-align: center;
}

.mailmag .sidebar-title {
  margin: -15px -15px 15px -15px;
  border-radius: 4px 4px 0 0;
}

.mailmag-title {
  font-size: 0.9rem;
  font-weight: bold;
  color: #003366;
  margin-bottom: 8px;
}

.mailmag-readers {
  font-size: 0.85rem;
  color: #666;
  margin-bottom: 10px;
}

.mailmag-link {
  display: inline-block;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.mailmag-form {
  display: flex;
  gap: 5px;
}

.mailmag-form input[type="text"] {
  flex: 1;
  padding: 8px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 0.85rem;
}

.mailmag-form input[type="submit"] {
  background-color: #ff6600;
  color: #fff;
  border: none;
  padding: 8px 15px;
  border-radius: 4px;
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.2s;
}

.mailmag-form input[type="submit"]:hover {
  background-color: #cc5500;
}

/* お問い合わせボタン */
.contact-btn {
  display: block;
  background: linear-gradient(to bottom, #ff6600, #cc5500);
  color: #fff !important;
  text-align: center;
  padding: 12px;
  border-radius: 6px;
  font-weight: bold;
  transition: opacity 0.2s;
}

.contact-btn:hover {
  opacity: 0.9;
  text-decoration: none;
}

/* フッター */
.footer {
  background-color: #003366;
  color: #fff;
  text-align: center;
  padding: 20px;
}

.footer a {
  color: #fff;
}

.footer a:hover {
  color: #ffcc00;
}

.copyright {
  font-size: 0.85rem;
  margin-top: 10px;
  opacity: 0.8;
}

/* ========================================
   レスポンシブ - タブレット (768px以下)
   ======================================== */
@media screen and (max-width: 768px) {
  .content-wrapper {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-left: none;
    border-top: 1px solid #ddd;
  }

  .category-title {
    font-size: 1rem;
  }

  /* 記事ページ */
  .article h1 {
    font-size: 1.1rem;
  }

  .article h2 {
    font-size: 1rem;
  }

  .article .img-right,
  .article .img-left {
    float: none;
    max-width: 100%;
    margin: 15px auto;
  }
}

/* ========================================
   レスポンシブ - スマートフォン (480px以下)
   ======================================== */
@media screen and (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .main-content {
    padding: 15px;
  }

  .sidebar {
    padding: 15px;
  }

  .category-title {
    font-size: 0.95rem;
    padding: 8px 12px;
  }

  .link-list li {
    padding: 10px 0;
    padding-left: 18px;
  }

  .sidebar-title {
    font-size: 0.9rem;
  }

  .footer {
    padding: 15px;
  }

  .copyright {
    font-size: 0.75rem;
  }
}

/* ========================================
   印刷用
   ======================================== */
@media print {
  body {
    background: #fff;
  }

  .container {
    box-shadow: none;
  }

  .sidebar {
    display: none;
  }

  a {
    color: #000;
  }
}