Use this skill when the user wants to build a sophisticated fintech / banking marketing landing in the Mercury style — soft sand-cream backgrounds with layered sand variants, restrained humanist sans typography at weight 500 with a slightly editorial feel and zero letter-spacing, muted teal/sage accents used as chips and underlines, real banking-dashboard mockups with tabular figures and alternating row tints, founder-portrait testimonials with first-person quotes, and language that addresses startup operators specifically without marketing flourish.