/* ===================================================================
 * Service Detail Page - Refined Design
 * =================================================================== */

/* --- 変数定義 --- */
:root {
  --primary-color: #0d2c4f;      /* ディープブルー */
  --accent-color: #ff6b35;       /* サンセットオレンジ */
  --text-color: #333;            /* 基本テキスト */
  --text-muted-color: #6c757d;   /* 補足テキスト */
  --bg-color: #ffffff;           /* 背景色 */
  --bg-soft-color: #f8f9fa;      /* やや薄い背景色 */
  --border-color: #dee2e6;       /* 境界線 */
  --success-color: #28a745;      /* 成功・チェックマーク */
  
  --font-family-base: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;

  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.08);
}

/* --- 基本スタイル --- */
.service-detail-page {
  font-family: var(--font-family-base);
  background-color: var(--bg-soft-color);
  color: var(--text-color);
}

/* --- 全体コンテナ --- */
.detail-container {
  max-width: 1200px;
  margin: 20px auto;
  padding: 48px;
  background-color: var(--bg-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
}

/* --- パンくずリスト --- */
.breadcrumbs {
  max-width: 1200px;
  margin: 24px auto 0;
  padding: 0 48px;
  font-size: 0.9rem;
}
.breadcrumbs ol {
  list-style: none;
  padding: 25px 0 0 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumbs a {
  color: var(--primary-color);
  text-decoration: none;
  transition: opacity 0.2s ease;
}
.breadcrumbs a:hover {
  opacity: 0.7;
}
.breadcrumbs li:not(:last-child)::after {
  content: '/';
  margin-left: 8px;
  color: var(--text-muted-color);
}

/* --- 上部ヘッダー（2カラムレイアウト） --- */
.product-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 60px;
  margin-bottom: 80px;
}

/* --- 左カラム：画像エリア --- */
.product-gallery .main-image {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  margin-bottom: 16px;
}
.product-gallery .no-image {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 16 / 11;
  background-color: var(--bg-soft-color);
  color: var(--text-muted-color);
  border-radius: var(--border-radius-md);
  margin-bottom: 16px;
}
.thumbnail-list {
  display: flex;
  gap: 12px;
}
.thumbnail-item {
  width: 90px;
  height: 65px;
  object-fit: cover;
  border: 2px solid transparent;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  opacity: 0.6;
  transition: all 0.3s ease;
}
.thumbnail-item:hover,
.thumbnail-item.active {
  opacity: 1;
  border-color: var(--accent-color);
  transform: translateY(-2px);
}

/* --- 右カラム：情報エリア --- */
.product-info {
  display: flex;
  flex-direction: column;
}
.category-tag {
  align-self: flex-start;
  background-color: var(--primary-color);
  color: #fff;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: var(--font-weight-medium);
  border-radius: 20px;
  margin-bottom: 16px;
}
.product-title {
  font-size: 2.5rem;
  font-weight: var(--font-weight-bold);
  line-height: 1.3;
  margin: 0 0 24px 0;
  color: var(--primary-color);
}

.price-box {
  background-color: var(--bg-soft-color);
  border-radius: var(--border-radius-md);
  padding: 24px;
  margin-bottom: 32px;
}
.price-label {
  font-size: 1rem;
  color: var(--text-muted-color);
  margin-bottom: 8px;
  display: block;
}
.price-note {
  font-size: 0.85rem;
  margin-left: 4px;
}
.price-amount {
  font-size: 2.8rem;
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
  line-height: 1;
}
.price-container {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.original-price {
  text-decoration: line-through;
  color: var(--text-muted-color);
  font-size: 1.4rem;
  font-weight: var(--font-weight-regular);
}
.campaign-price.price-amount {
  color: var(--accent-color);
}
.monthly-fee {
  margin: 16px 0 0 0;
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  color: var(--primary-color);
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0 0 32px 0;
  font-size: 1rem;
}
.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text-color);
}
.feature-list .fa-check-circle {
  color: var(--success-color);
  font-size: 1.3em;
}

.action-panel {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  text-align: center;
}
.action-lead {
  font-size: 0.9rem;
  color: var(--text-muted-color);
  margin-bottom: 16px;
}
.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  background: linear-gradient(45deg, var(--accent-color), #ff8a5c);
  color: #fff;
  padding: 18px;
  font-size: 1.2rem;
  font-weight: var(--font-weight-bold);
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius-md);
  box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
  transition: all 0.3s ease;
}
.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 7px 20px rgba(255, 107, 53, 0.5);
}
.cta-button .arrow-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
}
.cta-button:hover .arrow-icon {
  transform: translateX(4px);
}

/* --- 下部コンテンツエリア --- */
.content-section {
  max-width: 900px;
  margin: 0 auto 80px;
}
.section-title {
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);
  padding-bottom: 16px;
  margin-bottom: 32px;
  border-bottom: 2px solid var(--primary-color);
  position: relative;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 80px;
  height: 2px;
  background-color: var(--accent-color);
}
.section-content {
  line-height: 1.9;
  color: var(--text-color);
}
.section-content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius-md);
  margin: 24px 0;
}

/* --- FAQ アコーディオン --- */
.faq-accordion .accordion-item {
  border-bottom: 1px solid var(--border-color);
}
.accordion-trigger {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 24px 8px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: var(--font-weight-medium);
  color: var(--primary-color);
  transition: color 0.2s ease;
}
.accordion-trigger:hover {
  color: var(--accent-color);
}
.accordion-icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-left: 16px;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.accordion-icon::before,
.accordion-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 2px;
  background-color: currentColor;
  transform: translate(-50%, -50%);
  border-radius: 2px;
  transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.accordion-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(135deg);
}
.accordion-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s ease-out;
}
.accordion-content > p {
  overflow: hidden;
}
.accordion-trigger[aria-expanded="true"] + .accordion-content {
  grid-template-rows: 1fr;
}
.accordion-content p {
  padding: 0 8px 24px 8px;
  margin: 0;
  line-height: 1.8;
  color: var(--text-color);
}

/* --- レスポンシブ対応 (タブレット) --- */
@media (max-width: 1024px) {
  .product-header {
    gap: 40px;
  }
  .product-title {
    font-size: 2rem;
  }
  .price-amount {
    font-size: 2.4rem;
  }
}

/* --- レスポンシブ対応 (スマホ) --- */
@media (max-width: 768px) {
  .detail-container {
    margin: 20px auto;
    padding: 24px;
    box-shadow: none;
  }
  .breadcrumbs {
    padding: 0 24px;
  }
  .product-header {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 48px;
  }
  .product-title {
    font-size: 1.8rem;
  }
  .price-amount {
    font-size: 2.2rem;
  }
  .action-panel {
    margin-top: 24px;
  }
  .content-section {
    margin-bottom: 60px;
  }
  .section-title {
    font-size: 1.6rem;
    margin-bottom: 24px;
  }
}

/* --- さらに小さい画面 --- */
@media (max-width: 480px) {
  .detail-container {
    padding: 16px;
  }
  .breadcrumbs {
    padding: 0 16px;
    font-size: 0.8rem;
  }
  .product-title {
    font-size: 1.6rem;
  }
  .price-amount {
    font-size: 2rem;
  }
  .cta-button {
    font-size: 1.1rem;
    padding: 16px;
  }
  .accordion-trigger {
    padding: 20px 0;
    font-size: 1rem;
  }
  .accordion-content p {
    font-size: 0.9rem;
  }
}