Hunyuan Video I2V Looped cinematic animation of a dark fantasy game menu inspired by ‘Black Sakura’. Black-and-white Japanese mountains with subtle European castle silhouettes. On the right, a massive ancient sakura tree with dark branches and glowing red-black petals. The petals drift diagonally from the top-right toward the bottom-left in a continuous infinite loop. Slow fog layers move horizontally, and rare distant lightning illuminates the mountains softly. Floating ash particles enhance the eerie atmosphere. High contrast, sharp shadows, seamless loop, dramatic, dark, mystical, ultra-detailed.