## 1. Editorial contract

- [x] 1.1 Record the approved 5/7 spread rule in the Heritage Editorial design guidance.
- [x] 1.2 Add failing feature and browser coverage for the 5/7 desktop grid, 470 px reading column, responsive image sizes, text-first mobile order, and contained text.

## 2. Shared opening implementation

- [x] 2.1 Rebuild the public photo hero as the single responsive spread component, retaining fallback, accessible media, motion attributes, optional content, and no-image behavior.
- [x] 2.2 Delegate the home opening to the shared component while retaining its CTAs, note, chapter marker, and motion hooks.

## 3. Verification

- [x] 3.1 Run focused feature and browser/accessibility/motion checks without creating or updating screenshots.
- [x] 3.2 Run Pint, PHPStan, frontend build, and strict OpenSpec validation.