用 Replicate API + Flux 模型生成图像应用——完整 HTML 示例与提示词

Generate a complete HTML page with Replicate API integration for text-to-image generation using Flux model (or any Replicate model). Style with a modern dark UI, include a prompt input, a 'Generate' button, a loading spinner, and display the resulting image. Use Tailwind CSS from CDN. Fetch from Replicate's API (use a dummy token placeholder). Add smooth animations on image load. Make it responsive and visually impressive.