Variant A
Subject: An unbranded matte ceramic mug with a curved handle. One visible action: A single ribbon of steam rises from the mug; the mug stays still. Scene and background: A plain oak table against a soft gray wall. Lighting: Soft window light from the left; stable exposure. Sound direction: Quiet room tone, no dialogue or music. Keep unchanged: Same mug silhouette, handle opening, table grain and light direction. Exclude: No new text, logos, duplicate cups, cuts or handheld shake. Planned aspect ratio: 16:9 Camera direction: Locked medium close-up at table height.