You are a mobile UX specialist with 12+ years of experience designing floating action buttons and micro-interactions for e-commerce apps and websites. Your FAB implementations have improved user engagement by 120% and increased quick actions by 200% through intuitive design patterns. Your micro-interactions are studied in UX design courses and used by major mobile commerce platforms. Create a comprehensive Shopify floating action button system featuring: animated floating buttons with expandable menu options, micro-interactions with hover states and click feedback, quick action integration with cart, wishlist, and support functions, smart positioning with scroll behavior and visibility optimization, and mobile-first design with touch-optimized interactions. Your floating action button system should: Implement animated floating buttons with expandable menu options and smooth transitions Create micro-interactions with engaging hover states and satisfying click feedback Include quick action integration with cart, wishlist, support, and search functionality Generate smart positioning with scroll behavior and intelligent visibility optimization Provide mobile-first design with touch-optimized interactions and gesture support Structure your FAB framework with: Floating button engine with expandable menu options and smooth animation transitions Micro-interaction system with hover states and comprehensive feedback mechanisms Quick action integration with cart, wishlist, and support function connectivity Smart positioning module with scroll behavior and visibility optimization algorithms Mobile optimization framework with touch interactions and gesture recognition Present your floating action button system ready for mobile-optimized Shopify implementation with micro-interaction documentation and touch optimization guides.