* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.7;
  color: #222;
  background: #f7f7f7;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  background: #111;
  color: #fff;
}

.header-inner,
.footer-inner,
.site-wrapper {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 64px;
}

.site-logo {
  font-weight: 700;
  font-size: 20px;
}

.site-nav a,
.footer-nav a {
  margin-left: 16px;
  font-size: 14px;
}

.main-content {
  padding: 32px 0;
}

.page-container,
.article-container,
.tool-container {
  background: #fff;
  padding: 32px;
  border-radius: 14px;
}

.article-container a {
  background: #fff;
}

h1 {
  font-size: 30px;
  line-height: 1.3;
  margin-top: 0;
}

h2 {
  margin-top: 40px;
  font-size: 22px;
}

.lead {
  font-size: 17px;
  color: #555;
}

.breadcrumb {
  font-size: 13px;
  color: #666;
  margin-bottom: 20px;
}

.breadcrumb a {
  color: #333;
}

.ad-box {
  margin: 32px 0;
  padding: 16px;
  background: #f2f2f2;
  text-align: center;
}

.affiliate-box {
  margin: 40px 0;
  padding: 24px;
  border: 1px solid #ddd;
  border-radius: 12px;
  background: #fafafa;
  text-align: center;
}

.affiliate-label {
  font-weight: 700;
  margin-bottom: 12px;
}

.affiliate-button {
  display: inline-block;
  padding: 12px 24px;
  background: #111;
  color: #fff;
  border-radius: 8px;
  font-weight: 700;
}

.related-links {
  margin-top: 40px;
}

.related-links ul {
  padding-left: 20px;
}

.site-footer {
  margin-top: 48px;
  padding: 32px 0;
  background: #111;
  color: #fff;
  font-size: 14px;
}

/* 住宅ローンシミュレータ用CSS */
:root {
  --primary-color: #1a202c;
  --accent-color: #4fd1c5;
  --bg-color: #f7fafc;
  --text-color: #2d3748;
  --result-bg: #edf2f7;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
}

.calculator-layout {
  max-width: 900px;
  margin: 2rem auto;
  padding: 2rem;
  background-color: #fff;
  border-radius: 14px;
  box-shadow: 0 6px 14px rgba(0,0,0,0.08);
}

.calculator-layout h1 {
  text-align: center;
  margin-bottom: 2rem;
  font-size: 2rem;
  font-weight: 600;
  color: var(--primary-color);
}

/* シミュレーター部分の目立たせ方 */
#total-loan-calculator, 
#loan-calculator, 
#mortgage-calculator,
#reverse-loan-calculator {
  background-color: #ffffff; /* 白背景でカード感 */
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.08);
  margin-bottom: 2.5rem; /* 記事との間隔 */
}

/* 記事セクション */
.simulator-info {
  margin-top: 2rem;
  padding: 1.5rem;
  background-color: #f4f7f9;
  border-left: 4px solid #4fd1c5; /* アクセントラインで目立たせる */
  border-radius: 8px;
}

#loan-calculator label,
#mortgage-calculator label {
  font-size: 1.2rem;
  font-weight: 500;
}

input[type=range] {
  width: 100%;
  height: 20px;             /* スライダーを大きく */
  accent-color: var(--accent-color);
  margin-bottom: 0.5rem;
  cursor: pointer;
}

select,
input[type=checkbox] {
  padding: 0.75rem;
  font-size: 1.2rem;
  border-radius: 6px;
  border: 1px solid #cbd5e0;
  background-color: #fff;
}

#calculatorResult {
  background-color: var(--result-bg);
  padding: 1.5rem 2rem;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--primary-color);
}

#calculatorResult p {
  margin: 0;
}

/* スライダー値表示 */
#loanAmountVal,
#interestRateVal,
#loanTermVal,
#bonusAmountVal {
  font-weight: 700;
  color: var(--accent-color);
  margin-left: 0.5rem;
  font-size: 1.2rem;
}

/* ローン説明文 */
#loanDescription {
  margin-top: 1rem;
  padding: 1rem 1.5rem;
  background-color: #e2f0f1;
  border-radius: 10px;
  font-size: 1.1rem;
  color: #1a202c;
}

/* レスポンシブ */
@media (max-width: 768px) {
  .calculator-layout {
    padding: 1.5rem;
  }
  #calculatorResult {
    font-size: 1.1rem;
  }
}

@media (max-width: 480px) {
  .calculator-layout {
    padding: 1rem;
  }
  input[type=range] {
    height: 18px;
  }
  #calculatorResult {
    font-size: 1rem;
  }
}


/* 共通ローンシミュレータ用CSS */


/* レスポンシブ */
@media (max-width: 768px) {
  .calculator-layout {
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .calculator-layout {
    padding: 0.5rem;
  }

  #calculatorResult p {
    font-size: 1rem;
  }
}

:root {
  --primary-color: #1a202c;
  --accent-color: #4fd1c5;
  --bg-color: #f7fafc;
  --text-color: #2d3748;
  --result-bg: #edf2f7;
}

.calculator-layout {
  max-width: 900px;
  margin: 2rem auto;
  padding: 1rem 2rem;
  background-color: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.calculator-layout h1 {
  text-align: center;
  margin-bottom: 2rem;
  font-weight: 600;
}

#mortgage-calculator {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

#mortgage-calculator label {
  font-weight: 500;
}

#mortgage-calculator input[type=range] {
  width: 100%;
  accent-color: var(--accent-color);
}

#mortgage-calculator select,
#mortgage-calculator input[type=checkbox] {
  padding: 0.5rem;
  border-radius: 6px;
  border: 1px solid #cbd5e0;
  font-size: 1rem;
}

#calculatorResult {
  background-color: var(--result-bg);
  padding: 1rem 1.5rem;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--primary-color);
}

/* トップページ全体 */
.top-layout {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
}

/* キャッチコピー */
.hero {
  text-align: center;
  margin-bottom: 3rem;
}
.hero h1 { font-size: 2.5rem; font-weight: 700; margin-bottom: 0.5rem; }
.hero p { font-size: 1.3rem; color: #4a5568; }

/* シミュレーターリンクカード */
.simulator-cards .cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.card {
  background-color: #ffffff;
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 8px 16px rgba(0,0,0,0.08);
  text-decoration: none;
  color: #1a202c;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: 0 12px 24px rgba(0,0,0,0.12); }
.card h3 { font-size: 1.3rem; margin-bottom: 0.5rem; }
.card p { font-size: 1rem; color: #4a5568; }

/* 人気ローンランキング */
.ranking-section .ranking-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.ranking-card {
  background-color: #fefefe;
  border-radius: 14px;
  padding: 1.5rem;
  box-shadow: 0 6px 12px rgba(0,0,0,0.05);
  text-decoration: none;
  color: #1a202c;
  transition: transform 0.2s ease;
}
.ranking-card:hover { transform: translateY(-4px); }

/* 記事カード */
.articles-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}
/* 記事カード全体 */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.article-card {
    display: block;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    background-color: #fff;
    text-decoration: none;
    color: #2c3e50;
    transition: box-shadow 0.2s ease;
}
.article-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.article-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}
.article-card p {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}
.category-label {
    font-size: 0.9rem;
    color: #fff;
    background-color: #4a90e2;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}
.latest-articles, .category-articles {
    margin: 2rem 0;
}
.category-articles h2 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
    border-bottom: 2px solid #4a90e2;
    padding-bottom: 0.3rem;
}

/* シミュレーターまとめ */
.simulator-summary { margin-bottom: 3rem; font-size: 1.1rem; color: #2d3748; }

/* レスポンシブ */
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1.1rem; }
}

@media (max-width: 768px) {
  .calculator-layout {
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .calculator-layout {
    padding: 0.5rem;
  }
}

/* ヘッダースタイル */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-logo {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: #0f172a;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  color: #334155;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  transition: 0.2s ease;
}

.site-nav a:hover {
  color: #0f172a;
  background: #f1f5f9;
}

/* ヘッダー・ナビのスタイル */

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 12px;
  background: #0f172a;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 999px;
  transition: 0.25s ease;
}

/* ランキングテーブル */
.ranking-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 3rem;
}
.ranking-table th, .ranking-table td {
  border: 1px solid #ddd;
  padding: 1rem;
  text-align: left;
}
.ranking-table th {
  background-color: #f3f6fa;
  font-weight: 600;
}
.ranking-table tbody tr:nth-child(even) { background-color: #f9fafb; }

/* ランキング番号を目立たせる */
.ranking-table tbody tr td:first-child {
  font-size: 1.5rem;       /* 大きめの文字 */
  font-weight: 700;
  color: #ffffff;          /* 文字色は白 */
  background-color: #ff5722; /* オレンジ系で目立たせる */
  width: 60px;             /* 固定幅 */
  height: 60px;            /* 固定高さで丸にする */
  text-align: center;
  vertical-align: middle;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}
.ranking-table tbody tr:nth-child(1) td:first-child { background-color: #ffd700; } /* 1位：ゴールド */
.ranking-table tbody tr:nth-child(2) td:first-child { background-color: #c0c0c0; } /* 2位：シルバー */
.ranking-table tbody tr:nth-child(3) td:first-child { background-color: #cd7f32; } /* 3位：ブロンズ */

/* カード強調 */
.ranking-card.highlight {
  background-color: #fffbe6;
}

/* 申込ボタン */
.apply-btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: #ff5722;
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  border-radius: 8px;
  text-align: center;
  transition: background 0.2s ease;
}
.apply-btn:hover {
  background-color: #e64a19;
}
.article-container a.apply-btn {
    background-color: #ff5722 !important;
    color: #fff; /* 文字色も白以外に設定 */
}

.article-layout {
    width: 100%; /* または max-width: none; を指定 */
    margin: 0 auto;
    padding: 2rem 1rem;
    font-family: "Noto Sans JP", "Helvetica", "Arial", sans-serif;
    line-height: 1.8;
    color: #2c3e50;
    background-color: #fdfdfd;
}

.article-container h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-container h2 {
    font-size: 1.6rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid #4a90e2;
    padding-bottom: 0.3rem;
}

.article-container h3 {
    font-size: 1.3rem;
    font-weight: 500;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.article-container p {
    font-size: 1.05rem;
    margin-bottom: 1.2rem;
    line-height: 1.8;
}

.article-container ul,
.article-container ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
    line-height: 1.7;
}

.article-container li {
    margin-bottom: 0.7rem;
}

.article-container a {
    color: #ff5722;
    text-decoration: underline;
}

.article-container a:hover {
    text-decoration: none;
}

.simulators-summary {
    margin-top: 3rem;
    padding: 1.5rem;
    background-color: #f0f7ff;
    border-left: 4px solid #4a90e2;
    border-radius: 6px;
}

.simulators-summary h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.simulators-summary p {
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

.simulator-cards-bottom {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.simulator-card {
    display: block;
    padding: 1rem;
    border-radius: 6px;
    background-color: #fff;
    color: #2c3e50;
    text-decoration: none;
    border: 1px solid #ddd;
    transition: box-shadow 0.2s ease;
}

.simulator-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.simulator-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.simulator-card p {
    font-size: 0.95rem;
}

.apply-btn {
    background-color: #ff5722;
    color: #fff !important;
    padding: 0.7rem 1rem;
    text-align: center;
}

/* 画像や表の調整 */
.article-container img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1rem 0;
}

.article-container table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.article-container table th,
.article-container table td {
    border: 1px solid #ddd;
    padding: 0.6rem 0.8rem;
    text-align: left;
}

.article-container table th {
    background-color: #f5f5f5;
}

/* シミュレーターリンクやボタン */
.simulator-link-section {
    margin-top: 2.5rem;
    padding: 1.5rem;
    background-color: #f0f7ff;
    border-left: 4px solid #4a90e2;
}

.simulator-link-section a.apply-btn {
    display: inline-block;
    margin-top: 0.8rem;
    padding: 0.7rem 1.2rem;
    background-color: #ff5722;
    color: #fff;
    font-weight: 600;
    border-radius: 4px;
    text-decoration: none;
    transition: 0.2s ease;
}

.simulator-link-section a.apply-btn:hover {
    background-color: #e64a19;
}

/* 比較表スタイル */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
}
.comparison-table th,
.comparison-table td {
  border: 1px solid #ddd;
  padding: 1rem;
  text-align: center;
}
.comparison-table th {
  background-color: #f3f6fa;
  font-weight: 700;
  font-size: 1.1rem;
}
.comparison-table tbody tr:nth-child(even) {
  background-color: #f9fafb;
}
.comparison-table td {
  font-size: 1rem;
  color: #4a5568;
}

/* アコーディオンボタン（用語名） */
.accordion-button {
  font-size: 1.2rem;      /* 文字を大きめに */
  font-weight: 700;       /* 太字で強調 */
  background-color: #f7f9fc; /* 明るい背景 */
  color: #2c3e50;         /* 文字色 */
  cursor: pointer;
  padding: 1rem 1.5rem;
  width: 100%;
  text-align: left;
  border: none;
  border-bottom: 1px solid #ddd;
  transition: background-color 0.2s ease;
}
.accordion-button:hover {
  background-color: #e0e7ff; /* ホバーで少し目立たせる */
}

/* アコーディオン展開内容 */
.accordion-content {
  font-size: 1.1rem;      /* 文字を読みやすく */
  line-height: 1.6;
  color: #34495e;
  padding: 0.75rem 1.5rem;
  display: none;           /* 初期は非表示 */
  background-color: #fefefe;
  border-left: 3px solid #4a90e2; /* 左にアクセントライン */
  margin-bottom: 0.5rem;
}

/* 展開中のスタイル */
.accordion.active .accordion-content {
  display: block;
}

/* 全体余白 */
.glossary-section {
  margin: 2rem 0;
}

/* タブレット以下 */
@media (max-width: 768px) {
  .header-inner {
    position: relative;
    padding: 14px 16px;
  }

  .site-logo {
    font-size: 22px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 12px;
    background: #0f172a;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.22);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    width: 100%;
    min-height: 46px;
    padding: 0 14px;
    justify-content: flex-start;
    color: #e5e7eb;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 12px;
  }

  .site-nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
  }

  .nav-toggle.is-open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  
}