/* ============================================
   光回線比較特集 (/hikari-compare/) 専用スタイル
   internet-services 本体の styles.css (Data Stream Design) の
   カラーパレット・変数を継承し、特集内の広告カード・比較表・PRバッジ等を
   ダークテーマに合わせて再構成する。
   ============================================ */

/* --------------------------------------------
   特集サブナビゲーション
   -------------------------------------------- */
.feature-subnav {
  position: relative;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-default);
}

.feature-subnav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 10px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.feature-subnav-list li {
  flex: none;
}

.feature-subnav-list a {
  display: inline-block;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: var(--transition-fast);
}

.feature-subnav-list a:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.feature-subnav-list li.is-current a {
  background: var(--gradient-stream);
  color: #04121a;
}

.page-hero-subtitle {
  color: rgba(255, 255, 255, 0.85);
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  margin-top: 8px;
  margin-bottom: 0;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.6);
}

/* --------------------------------------------
   広告セクション見出し (PRバッジ付き)
   -------------------------------------------- */
.affiliate-recommended {
  padding: 32px;
  background: var(--gradient-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
}

.affiliate-section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.affiliate-section-header h2 {
  margin: 0;
  padding: 0;
  border: none;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
}

.affiliate-section-badge,
.affiliate-badge {
  display: inline-block;
  background: linear-gradient(135deg, #ff5470, #ff2d55);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.affiliate-section-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.affiliate-disclaimer {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 20px;
  margin-bottom: 0;
}

/* --------------------------------------------
   おすすめカード (affiliate-card)
   -------------------------------------------- */
.affiliate-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.affiliate-card {
  display: flex;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 22px;
  position: relative;
  transition: var(--transition);
}

.affiliate-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}

.affiliate-card:first-child {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 1px var(--accent-cyan) inset, var(--shadow-glow);
}

.affiliate-card-rank {
  flex-shrink: 0;
  align-self: flex-start;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--gradient-stream);
  color: #04121a;
  font-weight: 800;
  font-size: 1rem;
}

.affiliate-card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.affiliate-card-title {
  margin: 0 0 4px;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.affiliate-card-title a {
  color: inherit;
}

.affiliate-card-price {
  margin: 0 0 4px;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.affiliate-card-campaign {
  margin: 0 0 16px;
  color: var(--accent-teal);
  font-weight: 600;
  font-size: 0.8rem;
}

.affiliate-card-btn {
  display: inline-block;
  align-self: flex-start;
  margin-top: auto;
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--gradient-stream);
  color: #04121a;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
}

.affiliate-card-btn:hover {
  color: #04121a;
  box-shadow: var(--shadow-glow);
}

/* --------------------------------------------
   CTA (affiliate-cta) — 申込導線ブロック
   -------------------------------------------- */
.affiliate-cta {
  padding: 32px;
  text-align: center;
  background: var(--gradient-glow);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
}

.affiliate-cta h2 {
  border: none;
  margin-top: 8px;
}

.affiliate-banner-wrapper {
  margin-top: 16px;
}

.affiliate-cta-button {
  display: inline-block;
  padding: 16px 36px;
  border-radius: 999px;
  background: var(--gradient-stream);
  color: #04121a;
  font-weight: 800;
  font-size: 1.05rem;
  text-decoration: none;
  box-shadow: var(--shadow-glow);
  transition: var(--transition);
}

.affiliate-cta-button:hover {
  transform: translateY(-2px);
  color: #04121a;
}

/* --------------------------------------------
   その他広告ユニット (amazon-banner / affiliate-ad)
   -------------------------------------------- */
.amazon-banner,
.affiliate-ad {
  background: var(--bg-tertiary);
  border: 1px dashed var(--border-accent);
  border-radius: var(--radius-md);
  padding: 16px;
  margin: 24px 0;
  text-align: center;
  font-size: 0.85rem;
}

.amazon-banner a,
.affiliate-ad a {
  color: var(--accent-cyan);
}

.affiliate-ad img {
  vertical-align: middle;
}

/* --------------------------------------------
   比較表・データボックス
   -------------------------------------------- */
.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
}

.table-wrapper table {
  min-width: 640px;
}

tr.recommended-row td {
  background: rgba(0, 212, 255, 0.08) !important;
  font-weight: 600;
}

.data-box {
  background: var(--gradient-glow);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin: 24px 0;
}

.data-box h4 {
  color: var(--accent-cyan);
  margin-bottom: 10px;
}

.data-box ul {
  margin-bottom: 0;
}

/* --------------------------------------------
   FAQ
   -------------------------------------------- */
.faq-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--border-default);
}

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

.faq-item h2 {
  font-size: 1.15rem;
  padding-bottom: 0;
  border-bottom: none;
  margin-top: 0;
  margin-bottom: 12px;
  color: var(--accent-cyan);
}

.faq-item p {
  margin-bottom: 0;
}

/* --------------------------------------------
   用語集
   -------------------------------------------- */
.term-category {
  margin-bottom: 40px;
}

.term-category:last-child {
  margin-bottom: 0;
}

.term-category dl {
  margin: 0;
}

.term-category dt {
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 20px;
  padding: 10px 14px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  border-left: 3px solid var(--accent-cyan);
}

.term-category dd {
  margin: 0 0 4px;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.92rem;
}

/* --------------------------------------------
   事業者(プロバイダー)ナビゲーションカード
   -------------------------------------------- */
.provider-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.provider-nav-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 18px;
  color: var(--text-primary);
  transition: var(--transition);
}

.provider-nav-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
  color: var(--text-primary);
}

.provider-nav-card-title {
  margin: 0 0 8px;
  font-size: 1rem;
  color: var(--text-primary);
}

.provider-nav-card-price {
  margin: 0 0 4px;
  font-size: 0.85rem;
  color: var(--accent-teal);
  font-weight: 600;
}

.provider-nav-card-speed {
  margin: 0 0 4px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.provider-nav-card-campaign {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* --------------------------------------------
   パートナー募集インライン (トップのみ)
   -------------------------------------------- */
.partner-inline-section .partner-inline-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  background: var(--gradient-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
}

.partner-badge {
  display: inline-block;
  background: var(--gradient-stream);
  color: #04121a;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.partner-inline-title {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

.partner-inline-description {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 640px;
}

.partner-inline-actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

.partner-btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.88rem;
  white-space: nowrap;
}

.partner-btn-primary {
  background: var(--gradient-stream);
  color: #04121a;
}

.partner-btn-ghost {
  border: 1px solid var(--border-default);
  color: var(--text-primary);
}

/* --------------------------------------------
   レスポンシブ
   -------------------------------------------- */
@media (max-width: 768px) {
  .affiliate-cards {
    grid-template-columns: 1fr;
  }

  .affiliate-recommended,
  .affiliate-cta {
    padding: 22px;
  }

  .partner-inline-section .partner-inline-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 22px;
  }

  .partner-inline-actions {
    width: 100%;
  }

  .partner-btn {
    flex: 1;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .provider-nav-grid {
    grid-template-columns: 1fr;
  }

  .feature-subnav-list a {
    padding: 8px 12px;
    font-size: 0.8rem;
  }
}