Cartier × Zendaya — "THE GOLDEN RATIO" FORMAT: Ultra-Premium Jewelry SMM Poster | 4:5 | Instagram Hero | Behance Front Page Quality CORE STRATEGY: Chiaroscuro luxury. Monolithic serif typography integrated with model and product. CAMPAIGN: "THE GOLDEN RATIO" MASTER VISUAL: Massive serif CARTIER typography (70% canvas), layered with Zendaya. HERO SUBJECT: Zendaya. Sleek low bun, black velvet tuxedo, large gold panther necklace, gold rings. POSE: Centered, direct lens contact. Hands resting to display gold rings. COLOR SYSTEM: Obsidian Black, Warm Gold, Muted Bronze, Cream. BACKGROUND: Dark studio back with a soft gold gradient halo. GRAPHIC SYSTEM: Thin gold grid lines, catalog coordinates, clean editorial labels. PROMOTIONAL ELEMENTS: NEW COLLECTION | THE PANTHÈRE SERIES | ONLINE EXCLUSIVE TYPOGRAPHY: Top left small wordmark | Center giant C A R T I E R | Title: THE GOLDEN RATIO LIGHTING: High-contrast key light highlights the gold necklace and face profile. CAMERA: ARRI Alexa Mini LF, 85mm Lens, shallow depth of field, sharp metal highlights.