.blog-detail {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  padding-top: var(--header-offset, 120px);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #333;
}

.blog-detail__article {
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  padding: 30px;
}

.blog-detail__header {
  margin-bottom: 25px;
  text-align: center;
}

.blog-detail__title {
  font-size: 38px;
  font-weight: 700;
  color: #2c3e50;
  margin-bottom: 15px;
  line-height: 1.2;
}

.blog-detail__meta {
  font-size: 14px;
  color: #7f8c8d;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 10px;
}

.blog-detail__date {
  white-space: nowrap;
}

.blog-detail__keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.blog-detail__keyword {
  background-color: #ecf0f1;
  color: #555;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  white-space: nowrap;
  transition: background-color 0.2s ease;
}

.blog-detail__keyword:hover {
  background-color: #dce0e1;
}

.blog-detail__figure {
  margin: 0 0 35px 0;
  text-align: center;
}

.blog-detail__cover {
  width: 100%;
  max-width: 100%;
  max-height: 400px;
  border-radius: 8px;
  object-fit: cover;
  display: block;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.blog-detail__content {
  font-size: 17px;
  line-height: 1.7;
  color: #333;
}

.blog-detail__content p {
  margin-bottom: 20px;
}

.blog-detail__content h2 {
  font-size: 28px;
  font-weight: 600;
  color: #2c3e50;
  margin-top: 35px;
  margin-bottom: 18px;
  line-height: 1.3;
}

.blog-detail__content h3 {
  font-size: 24px;
  font-weight: 600;
  color: #2c3e50;
  margin-top: 30px;
  margin-bottom: 15px;
  line-height: 1.3;
}

.blog-detail__content h4 {
  font-size: 20px;
  font-weight: 600;
  color: #2c3e50;
  margin-top: 25px;
  margin-bottom: 12px;
  line-height: 1.3;
}

.blog-detail__content ul,
.blog-detail__content ol {
  margin-bottom: 20px;
  padding-left: 25px;
}

.blog-detail__content li {
  margin-bottom: 10px;
}

.blog-detail__content blockquote {
  border-left: 5px solid #3498db;
  padding: 15px 25px;
  margin: 25px 0;
  background-color: #f8f9fa;
  color: #555;
  font-style: italic;
  border-radius: 4px;
}

.blog-detail__content a {
  color: #3498db;
  text-decoration: none;
  font-weight: 500;
}

.blog-detail__content a:hover {
  text-decoration: underline;
  color: #2980b9;
}

.blog-detail__related-posts {
  margin-top: 50px;
  padding-top: 35px;
  border-top: 1px solid #eee;
}

.blog-detail__related-title {
  font-size: 26px;
  font-weight: 600;
  color: #2c3e50;
  margin-bottom: 25px;
  text-align: center;
}

.blog-detail__related-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.blog-detail__related-item {
  background-color: #f9f9f9;
  border-radius: 8px;
  padding: 20px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.07);
  transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.blog-detail__related-item:hover {
  transform: translateY(-7px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.blog-detail__related-link {
  display: block;
  font-size: 18px;
  color: #3498db;
  text-decoration: none;
  font-weight: 600;
  line-height: 1.4;
}

.blog-detail__related-link:hover {
  color: #2980b9;
  text-decoration: underline;
}

@media (max-width: 768px) {
  .blog-detail {
    padding: 15px;
    padding-top: var(--header-offset, 100px);
  }

  .blog-detail__article {
    padding: 20px;
  }

  .blog-detail__title {
    font-size: 32px;
    margin-bottom: 12px;
  }

  .blog-detail__meta {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .blog-detail__content {
    font-size: 16px;
    line-height: 1.6;
  }

  .blog-detail__content h2 {
    font-size: 26px;
    margin-top: 30px;
    margin-bottom: 15px;
  }

  .blog-detail__content h3 {
    font-size: 22px;
    margin-top: 25px;
    margin-bottom: 12px;
  }

  .blog-detail__content h4 {
    font-size: 18px;
    margin-top: 20px;
    margin-bottom: 10px;
  }

  .blog-detail__cover {
    max-height: 300px;
    margin-bottom: 25px;
  }

  .blog-detail__related-title {
    font-size: 22px;
    margin-bottom: 20px;
  }

  .blog-detail__related-item {
    padding: 15px;
  }

  .blog-detail__related-link {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .blog-detail {
    padding: 10px;
    padding-top: var(--header-offset, 80px);
  }

  .blog-detail__article {
    padding: 15px;
  }

  .blog-detail__title {
    font-size: 26px;
    margin-bottom: 10px;
  }

  .blog-detail__meta {
    font-size: 13px;
  }

  .blog-detail__keyword {
    font-size: 12px;
    padding: 5px 10px;
  }

  .blog-detail__content {
    font-size: 15px;
    line-height: 1.5;
  }

  .blog-detail__content h2 {
    font-size: 22px;
    margin-top: 25px;
    margin-bottom: 12px;
  }

  .blog-detail__content h3 {
    font-size: 19px;
    margin-top: 20px;
    margin-bottom: 10px;
  }

  .blog-detail__content h4 {
    font-size: 17px;
    margin-top: 18px;
    margin-bottom: 8px;
  }

  .blog-detail__cover {
    max-height: 250px;
    margin-bottom: 20px;
  }

  .blog-detail__related-list {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .blog-detail__related-item {
    padding: 12px;
  }

  .blog-detail__related-link {
    font-size: 15px;
  }
}