Create a controlled rain-condition demonstration for a fictional front-loader cargo bicycle. Preserve frame geometry, wheel sizes, steering linkage, cargo box, reflective strips, and transparent rain cover from Images 1–3. Preserve the adult rider's identity, helmet, waterproof jacket, and footwear from Image 4.

Open on a stationary close view of water beading on the closed cargo cover. Cut to a low side tracking shot as the rider starts smoothly on the empty closed course from Image 5, both wheels maintaining ground contact. Show one broad low-speed turn, realistic tire spray, visible steering linkage, and stable covered cargo represented by two secured foam blocks. End with a controlled stop and one foot planted.

Sound intent: rainfall, tire hiss, chain, brake contact, no music. Do not claim waterproofing, braking distance, payload, or road legality. Avoid public traffic, child passengers, skidding, missing helmet, warped wheels, changing cargo, impossible steering, visible brands, captions, or watermark.