*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  color: #333;
  line-height: 1.8;
  background: #f5f5f5;
}

/* ヘッダー */
.site-header {
  background: #fff;
  border-bottom: 3px solid #e60012;
  padding: 0.8rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

.site-header .inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-title {
  font-size: 1.1rem;
  font-weight: bold;
  color: #e60012;
}

.back-link {
  color: #666;
  text-decoration: none;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.back-link:hover {
  color: #e60012;
}

/* 記事一覧 */
.index-body {
  max-width: 1000px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.index-body h2 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: #555;
  border-left: none;
  padding-left: 0;
}

.article-list {
  list-style: none;
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.article-list li {
  border-bottom: 1px solid #f0f0f0;
}

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

.article-list a {
  display: block;
  padding: 1rem 1.4rem;
  color: #333;
  text-decoration: none;
  font-size: 0.95rem;
  transition: background 0.15s;
}

.article-list a:hover {
  background: #fff5f5;
  color: #e60012;
}

/* 記事本文 */
.article-body {
  max-width: 1000px;
  margin: 1.5rem auto 3rem;
  padding: 0 1.5rem;
}

article {
  background: #fff;
  border-radius: 10px;
  padding: 2.5rem 3rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

h1 {
  font-size: 1.5rem;
  line-height: 1.5;
  margin-bottom: 1rem;
  color: #1a1a1a;
}

h2 {
  font-size: 1.15rem;
  margin: 2.2rem 0 0.8rem;
  padding: 0.5rem 0.8rem;
  border-left: 4px solid #e60012;
  background: #fff7f7;
  color: #1a1a1a;
  border-radius: 0 4px 4px 0;
}

h3 {
  font-size: 1rem;
  margin: 1.5rem 0 0.5rem;
  color: #333;
  font-weight: bold;
}

p {
  margin-bottom: 1rem;
  font-size: 0.95rem;
  line-height: 1.9;
}

ul, ol {
  padding-left: 1.4rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  line-height: 1.8;
}

/* 記事内画像 */
.article-img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin: 1.5rem 0;
  display: block;
}

.hero-img {
  border-radius: 10px;
}

/* 評価星 */
.rating-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.stars {
  color: #f5a623;
  font-size: 1.3rem;
  letter-spacing: 2px;
}

.rating-text {
  color: #666;
  font-size: 0.9rem;
}

/* リード文 */
.lead-text {
  font-size: 1rem;
  line-height: 2;
  color: #444;
  border-left: 3px solid #e60012;
  padding-left: 1rem;
  margin: 1.2rem 0;
}

/* 情報ボックス */
.info-box {
  background: #fff9f9;
  border: 1px solid #f0c0c0;
  border-radius: 8px;
  padding: 1.2rem 1.4rem;
  margin: 1.5rem 0;
}

.info-box-title {
  font-weight: bold;
  color: #e60012;
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
}

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

/* 特徴セクション */
.feature-item {
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 1.2rem 1.4rem;
  margin: 1.2rem 0;
  background: #fafafa;
}

.feature-item h3 {
  color: #e60012;
  margin-top: 0;
  font-size: 1rem;
}

.feature-item p:last-child,
.feature-item ul:last-child {
  margin-bottom: 0;
}

/* おすすめリスト */
.recommend-list {
  list-style: none;
  padding-left: 0;
}

.recommend-list li {
  padding: 0.4rem 0;
  font-size: 0.95rem;
}

/* レビューカード */
.review-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1rem 0;
}

.review-card {
  background: #f9f9f9;
  border-radius: 8px;
  padding: 1rem 1.2rem;
  border-left: 3px solid #f5a623;
}

.review-stars {
  color: #f5a623;
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.review-text {
  font-size: 0.9rem;
  color: #444;
  line-height: 1.8;
  margin-bottom: 0.4rem;
}

.reviewer {
  font-size: 0.8rem;
  color: #888;
  margin-bottom: 0;
}

/* メリット・デメリット表 */
.pros-cons-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.9rem;
}

.pros-cons-table th,
.pros-cons-table td {
  padding: 0.7rem 1rem;
  border: 1px solid #e0e0e0;
  vertical-align: top;
  line-height: 1.7;
}

.pros-head {
  background: #e8f5e9;
  color: #2e7d32;
  font-weight: bold;
  width: 50%;
}

.cons-head {
  background: #fce4ec;
  color: #c62828;
  font-weight: bold;
  width: 50%;
}

.pros-cons-table tbody td:first-child {
  background: #f9fff9;
}

.pros-cons-table tbody td:last-child {
  background: #fff9f9;
}

/* FAQ */
.faq-list {
  margin: 1rem 0;
}

.faq-item {
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 1rem 1.2rem;
  margin-bottom: 0.8rem;
  background: #fff;
}

.faq-q {
  font-weight: bold;
  color: #e60012;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.faq-a {
  color: #444;
  font-size: 0.93rem;
  margin-bottom: 0;
  line-height: 1.8;
}

/* CTAボックス */
.cta-box {
  background: linear-gradient(135deg, #fff0f0, #ffe4e4);
  border: 2px solid #e60012;
  border-radius: 10px;
  padding: 1.5rem;
  text-align: center;
  margin: 2rem 0 1rem;
}

.cta-text {
  font-size: 0.95rem;
  font-weight: bold;
  color: #c00;
  margin-bottom: 1rem;
}

.cta-sub {
  font-size: 0.8rem;
  color: #888;
  margin-top: 0.7rem;
  margin-bottom: 0;
}

/* 購入ボタン */
.buy-btn {
  display: inline-block;
  background: linear-gradient(135deg, #e60012, #c0000f);
  color: #fff;
  padding: 1rem 2.8rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1rem;
  transition: all 0.2s;
  box-shadow: 0 4px 12px rgba(230,0,18,0.3);
  letter-spacing: 0.05em;
}

.buy-btn:hover {
  background: linear-gradient(135deg, #ff1a2a, #e60012);
  box-shadow: 0 6px 16px rgba(230,0,18,0.4);
  transform: translateY(-1px);
}

/* フッター */
.site-footer {
  text-align: center;
  padding: 2rem 1rem;
  color: #999;
  font-size: 0.8rem;
}

/* レスポンシブ */
@media (max-width: 768px) {
  .article-body {
    padding: 0 1rem;
  }

  article {
    padding: 1.5rem 1.2rem;
  }

  h1 {
    font-size: 1.3rem;
  }

  h2 {
    font-size: 1.05rem;
  }
}

@media (max-width: 480px) {
  article {
    padding: 1.2rem 1rem;
    border-radius: 6px;
  }

  h1 {
    font-size: 1.15rem;
  }

  .pros-cons-table {
    font-size: 0.8rem;
  }

  .pros-cons-table th,
  .pros-cons-table td {
    padding: 0.4rem 0.5rem;
  }

  .buy-btn {
    display: block;
    text-align: center;
    padding: 1rem;
    font-size: 0.95rem;
  }

  .review-cards {
    gap: 0.8rem;
  }
}