Generate scroll-stopping video ads optimized for social media platforms.
Create a [DURATION]-second vertical video ad for [PRODUCT/SERVICE]. Opening hook: [HOOK DESCRIPTION] that grabs attention in the first 2 seconds. Middle section shows [PRODUCT BENEFIT] with smooth transitions. Closing with [CTA]. Style: modern, fast-paced. Aspect ratio: 9:16 for mobile.
Product: AI writing assistant app, Duration: 15 seconds