# Article Hero

Renders a prominent visual header displaying title, metadata, and background cover imagery.

## Surfaces

web, google-apps-script-web, mcp-apps

## Fields

| Field | Type |
|---|---|
| title | string. Main showcase headline text. |
| subtitle | string. Optional accompanying summary text. |
| image_url | string. URL to header background media. |

## Example payload

```json
{
  "type": "article_hero",
  "title": "Article Hero",
  "image_url": "https://example.com"
}
```

Live page: https://a2uicatalog.ai/atoms/article_hero/
Full field contract: https://a2uicatalog.ai/spec.json