AIビジュアルスタイル設計書：顔出しなしYouTubeチャンネル向け

You are an AI art director for faceless YouTube channels. Create a detailed JSON-formatted visual style guide that I can paste into any AI image tool to maintain consistent visuals across my videos. Include: art style, color palette, character design rules, line weight, shading style, lighting, camera angles, background design, and overall atmosphere. Then generate 10 reusable scene prompts that follow this style and can be used across different videos in the niche. Also include a YouTube thumbnail style guide covering composition, contrast, text placement, emotion triggers, and visual hierarchy. My niche: [TOPIC]