Rewrite your LinkedIn headline to work everywhere it actually appears

My current title or headline: Senior Product Designer at a Series B startup.
Who I help or who I work with: B2B SaaS teams shipping their first enterprise-grade UI.
The specific outcome, expertise, or proof point I want represented: Led the redesign that cut onboarding drop-off by a third.
Keywords people might search to find someone like me: product design, design systems, B2B SaaS, UX research.

LinkedIn's headline field has a 220-character hard limit, but it also renders in places that truncate much shorter — beside every comment you leave, in the connection-request preview, and in search result rows — so it needs to hold up compressed, not just at full length.

Give me:
1. A full-length version (180-220 characters) combining role, who I help, and the specific outcome or proof point, using product design, design systems, B2B SaaS, UX research naturally
2. A compact version (under 80 characters) that keeps only the highest-value phrase — the one thing that should survive if everything else gets cut
3. One alternate full-length version with a different structural approach (e.g., leading with the outcome instead of the title)

For each, count the exact characters and confirm it's within 220. Avoid generic filler like "passionate," "results-driven," or "thought leader" — every word should be doing search or comprehension work.