3D Model: Design A High-end 3D Model Of A Modern Luxury Sofa With A Minimalist Yet Elegant Aesthetic. The Sofa Should Feature Fabric Upholstery With Detailed Stitching, Soft Cushions With Realistic Folds, And Polished Wooden Legs. Add Multiple Throw Pillows Of Different Shapes And Sizes For Realism. Create PBR Textures Including Fabric Weave Details, Roughness Maps, And AO For Shadows. Provide 4K Resolution Textures For High-quality Close-ups. Ensure The Model Has Clean Topology, Optimized Polycount, And UV-unwrapped Meshes. Include Different Color/material Variations (grey, Beige, Dark Blue, Leather Brown). The Model Should Be Optimized For Architectural Visualization, Interior Renders, Furniture Design Presentations, And Real-time AR/VR Use.