A final call-to-action slide for a social media carousel. The background is a clean, solid, dark professional studio-style background (matching the dark classroom/office tones of the previous cards). In the center, there is modern and clean typography in the same style: the word 'Подписывайся' in a bold, elegant golden sans-serif font, and the subtitle 'тут про речь и публичные выступления' in a clean, crisp white sans-serif font directly below it. Floating around the text are subtle, glowing neon-like line-art physics icons (such as a magnet, atom model, Newton's cradle, and a light prism) in soft blue, gold, and white neon colors, creating a cohesive, stylish, and premium look that perfectly matches the cover and physics-themed slides.
