通勤站台超精细参数化（OpenAI 官方）

Format & Look: Duration 4s; 180° shutter; digital capture emulating 65mm photochemical contrast; fine grain; subtle halation on speculars; no gate weave.

Lenses & Filtration: 32mm / 50mm spherical primes; Black Pro-Mist 1/4; slight CPL rotation to manage glass reflections on train windows.

Grade/Palette: Highlights—clean morning sunlight with amber lift. Mids—balanced neutrals with slight teal cast in shadows. Blacks—soft, neutral with mild lift.

Lighting & Atmosphere: Natural sunlight from camera left (07:30 AM). 4×4 ultrabounce silver; negative fill from opposite wall. Gentle mist; train exhaust drift.

Location & Framing: Urban commuter platform at dawn. Foreground—yellow safety line, coffee cup. Midground—silhouetted passengers in haze. Background—arriving train braking.

Wardrobe: Mid-30s traveler, navy coat, backpack, holding phone loosely.

Sound: Diegetic only—rail screech, train brakes, muffled announcement, ambient hum, footsteps, paper rustle.