/* 通用设置 */
body {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 16px;
  color: #333;
  line-height: 1.6;
  background-color: #f9f9f9;
  margin: 0;
  padding: 0;
}

/* 文章容器 */
.article-container {
  max-width: 800px;
  margin: 40px auto;
  padding: 20px 30px;
  background-color: #ffffff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
}

/* 标题样式 */
.article-container h2 {
  font-size: 28px;
  color: #2c3e50;
  margin-bottom: 20px;
  border-left: 5px solid #3498db;
  padding-left: 10px;
}

.article-container h3 {
  font-size: 22px;
  color: #34495e;
  margin-top: 30px;
  margin-bottom: 15px;
  border-bottom: 2px solid #ecf0f1;
  padding-bottom: 5px;
}

/* 段落样式 */
.article-container p {
  margin-bottom: 15px;
  text-align: justify;
}

/* 表格样式 */
.article-container table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
}

.article-container table th,
.article-container table td {
  border: 1px solid #ddd;
  padding: 12px;
  text-align: center;
}

.article-container table th {
  background-color: #f2f2f2;
  font-weight: bold;
}

/* 列表样式 */
.article-container ul {
  list-style-type: disc;
  padding-left: 20px;
  margin-bottom: 15px;
}

.article-container ul li {
  margin-bottom: 10px;
}

/* 强调文字 */
.article-container strong {
  color: #e74c3c;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .article-container {
    padding: 15px 20px;
  }

  .article-container h2 {
    font-size: 24px;
  }

  .article-container h3 {
    font-size: 20px;
  }
}