智能生成SEO优化关键词

```json
{
  "keywords": ["提升文章吸引力的方法", "如何让文章更吸引人", "提高文章点击率", "文章吸引力优化技巧", "文章标题优化策略"],
  "total_keywords": 5
}
```

```json
{
  "keywords": [
    "increase social media visibility",
    "boost product visibility on social media",
    "social media marketing for products",
    "strategies to increase social media reach",
    "improve product awareness on social platforms",
    "social media advertising tips",
    "grow product audience on social media",
    "engage users on social media",
    "social media promotion techniques",
    "optimize social media for products"
  ],
  "total_keywords": 10
}
```

```json
{
  "keywords": [
    "提升商品销量",
    "有机搜索优化",
    "SEO策略提升销量",
    "内容营销提升销量",
    "搜索引擎优化",
    "如何提高自然搜索流量",
    "电商SEO优化",
    "关键词优化技巧"
  ],
  "total_keywords": 8
}
```