森林地堡工地與混凝土入口豎井

Undisturbed woodland before construction. No visible bunker. Dense pine needle ground cover, exposed roots, scattered rocks, untouched terrain with slight depression where future entrance will be built.SCENE LOCK: Static tripod camera at exact same position, natural 35mm lens feel, identical framing and forest landmarks. Twin moss boulders, center pine tree, fern clusters, and entrance alignment remain fixed. STAGE: Active underground bunker construction. Excavation complete, reinforced concrete entrance shaft being built. Workers in PPE installing forms, rebar, waterproofing systems, drainage lines, and structural framing. DETAILS: Excavator parked nearby, rebar cages, concrete forms, scaffolding, generators, extension cords, safety cones, dirt piles, wheelbarrows, realistic mud tracks, construction lighting, workers physically performing tasks, accurate underground build sequence. NEGATIVE: no text, logos, watermarks, warped geometry, floating tools, instant completion, impossible machinery positions, changing forest layout, teleporting materials, unrealistic construction methods. DETAILS: Survey stakes, faint spray-paint utility markings, measuring tape on ground, small tool bags, realistic forest debris, natural shadows through trees, footprints from survey crew. NEGATIVE: no text, logos, watermarks, warped geometry, extra trees, new landmarks, floating objects, impossible lighting, futuristic machinery, teleporting construction elements, visible bunker entrance.