Silk Ribbon CTA — ultra-subtle, bottom-stuck, expandable

One-time pop + micro-jiggle, then still. A gentle amber glow hugs the bottom edge. Tap to expand actions; autohides slightly during fast scrolling. Perfect for mobile, classy on desktop.

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Scroll a bit; the ribbon appears after engagement (20% scroll or 7s). Try expanding it; then collapse again. Snooze for 7 days if you like.