Crumbs now originate from per-particle sx/sy offsets across a compact
16px-wide mouth strip with slight vertical curve, then tumble mostly
downward with reduced lateral spread. Particle sizes shrunk to 2-4px
for a crumb feel. CSS keyframe no longer teleports crumbs sideways at
frame 0 — they start at their spawn point and drift to (dx, dy).
Also expanded REWARD_WORDS from 4 to 10 cute variations.
filemon
ca581e37c2