Rewrite pages/product.html from the 3-row skeleton to the cms
[slug].astro design: breadcrumb -> gallery (main + scrolling thumbs,
reusing the platform pro.js data-gallery-image hooks, zero new JS) +
summary column (eyebrow/h1/lead/brand+model/actions) -> flattened
Product details panel -> Specifications table from fields (hidden when
empty) -> related products on the home card grid -> inquiry section
(left contact info, right external form only when form_endpoint is
configured, CTA to /contact/ otherwise).
Component CSS lands in pro.css under .sf-theme-trade-pro with
900/620 breakpoints; stale .pro-specs tint rules removed (other
themes keep their pro-base skeleton); cross-theme skeleton assertion
in test_theme_pro_v3.py now excludes trade-pro; new
test_trade_pro_product_layout_structure covers the build output.
Co-Authored-By: Claude Code <noreply@anthropic.com>
浅念
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