feat(mall): pin home category menu beside hero carousel

Home hero becomes a 450px flex row with a pinned 240x450 category rail
(ShellCategoryMenu `pinned` mode) left of the 960px center-cropped
carousel; hovering a top-level category expands the mega-menu over the
carousel. The header no longer collapses on scroll, and its category
dropdown is now hover-only on non-home pages.

OpenSpec change: openspec/changes/pin-home-category-menu

BREAKING CHANGE: the header logo/search/cart bar no longer auto-hides
past 200px of scroll, and the home page no longer shows the header
category dropdown (it is pinned in the hero row instead).
This commit is contained in:
2026-09-17 14:17:46 +00:00
parent 21e99bb52b
commit ee2f421709
7 changed files with 127 additions and 11 deletions
@@ -0,0 +1,2 @@
schema: spec-driven
created: 2026-09-17