.site-header-nav {
  display: flex;
}

/* ページ上部のメインビジュアル */
#mainvisual {
  position: relative;
  height: 300px;
}

#mainvisual img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

#mainvisual .products-title {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
}

.products-title h2 {
  color: #fff;
}

.products-title h2::after {
  content: "";
  display: block;
  width: 50px;
  height: 3px;
  background-color: #fff;
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
}

.products-title p {
  color: #fff;
}

/* ブログ個別記事ページ用スタイル */
.single-box {
  background: #ecece6;
  padding: 16px 0;
}

.single-container {
  max-width: 820px;
  margin: 60px auto;
  padding: 0 20px;
}

.single-post {
  background-color: #fff;
  padding: 40px 50px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.post-header {
  margin-bottom: 30px;
  padding-bottom: 25px;
  border-bottom: 1px solid #eaeaea;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 0;
  font-size: 0.9rem;
  color: #666;
  justify-content: space-between;
}

.post-meta .category {
  background-color: #333;
  color: #fff;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: bold;
}

.post-meta .category a {
  color: #fff;
}

.post-meta time {
  color: #333;
}

.post-title {
  font-size: 2rem;
  font-weight: bold;
  line-height: 1.4;
  margin: 16px 0;
  color: #333;
}

.post-featured-image {
  margin: 0 0 40px 0;
}

.post-featured-image img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.post-content {
  line-height: 1.9;
  font-size: 1rem;
  color: #333;
}

.post-content p {
  margin: 0 0 1.8em 0;
}

.post-content h2 {
  font-size: 1.7rem;
  font-weight: bold;
  margin: 60px 0 25px;
  padding-bottom: 10px;
  border-bottom: 3px solid #f0f0f0;
}

.post-content h3 {
  font-size: 1.4rem;
  font-weight: bold;
  margin: 50px 0 20px;
  padding-left: 15px;
  border-left: 5px solid #333;
}

/* 記事フッター・一覧へ戻るボタン */
.post-footer {
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid #333;
  text-align: center;
}

.back-link {
  display: inline-block;
  padding: 14px 48px;
  border: 2px solid #333;
  border-radius: 50px;
  text-decoration: none;
  color: #333;
  font-weight: bold;
  transition: all 0.3s ease;
}

.back-link:hover {
  background-color: #333;
  color: #fff;
  border-color: #333;
}

@media (max-width: 768px) {
  .site-header-nav {
    display: block;
  }

  .single-post {
    padding: 25px 20px;
  }

  .post-title {
    font-size: 1.6rem;
  }

  .post-content h2 {
    font-size: 1.4rem;
  }

  .post-content h3 {
    font-size: 1.2rem;
  }
}

@media screen and (max-width: 520px) {
  .post-title {
    font-size: 1.3rem;

  }

  .post-content h2 {
    font-size: 1.3rem;
  }

}