A panoramic gaming YouTube banner, ultra-wide aspect ratio 21:9. In the center, glowing futuristic 3D text that reads "GG Run" in a bold, metallic cyber-style font with neon cyan and hot pink accents. The background features a split dynamic composition: on the left, an epic dark fantasy RPG landscape with a glowing dragon; on the right, a high-tech cyberpunk sci-fi city with neon skyscrapers. Action-packed atmosphere, glowing particles, light streaks, cinematic lighting, 8k resolution, photorealistic, professional gaming channel art. --ar 21:9
