Slow dolly through old library aisle

Single continuous slow forward dolly shot, vertical 9:16 framing. Inside an old wood-paneled library in the late afternoon, a narrow beam of warm golden sunlight cuts diagonally through the air from a tall arched window on the left, and thousands of dust motes drift slowly through the beam in gentle random swirls. Rows of leather-bound books with plain unlabeled spines fill the shelves on both sides and recede toward a soft-focus far wall, with a worn wooden reading table in the middle ground. The camera glides forward at walking pace along the aisle at chest height in one steady move, with no cuts and no shake, keeping the light beam in the central band of the frame. Cinematic 35mm look, warm amber highlights, deep brown shadows, shallow depth of field, subtle film grain. The top tenth and bottom sixth of the frame stay calm and low in detail. Sound design: very quiet room tone, a faint distant clock tick, the soft creak of old wood, no music, no voice. No people, no text, no logos, no watermark.