Marrow

How-it-works section for Marrow, an at-home blood-testing service that quantifies your health. Style: warm off-white theme, bold black grotesque headline, orange pill CTA, monospaced bracketed step numbers. Layout: oversized headline row, then three numbered columns pairing copy with photo cards. Components: 'Start testing' button, frosted health-score panel with letter grades, biological-age stat card, macro photography tiles. Vibe: clinical yet warm, personal — consumer healthtech.