"Create a modern, tech-inspired logo with a dark background (black or charcoal). Use shades of teal and green with gradient effects. The logo should include the text 'ESN' in a modern, sans-serif font with a metallic or glossy finish, and the text '小白书教' beneath it in a clean, legible font. Incorporate a simple yet elegant leaf icon above the 'ESN' text, with gradients or shading for a slight three-dimensional look. Add subtle shadows and highlights for depth, ensuring a clean, uncluttered, and professional appearance."