a portion corresponding to a rectangle of the stern deck under the personal submarine is not part of the deck itself yet it is a movable platform currently closed i want it to be open so that it can show the submarine being lifted the submarine should always be on this part of the platform touching it the platform should always remain horizontal and it opens up towards the stern of the boat so that when open the lenght overall of the yacht is bigger keep the entire yacht scene exactly as it is platform configuration requirements the stern platform must be partially deployed rotated downward from the stern edge supported by visible articulated parallelogram arms one on each side arms must connect from the stern cavity to the underside of the platform marine grade aluminum or stainless steel structural arms realistic hinge joints at pivot points hydraulic mechanism implied but clean and premium positioning platform extended outward and downward not fully submerged positioned just above water level slight inclination consistent with mechanical deployment maintain horizontal alignment of the teak surface self leveling mechanism surface continuity teak planks identical to main deck same grain direction same plank width same caulking lines no color variation satin marine finish structural realism visible underside support structure subtle shadowing under the lifted platform realistic mechanical tension in arms no cartoon interpretation no exaggerated movement lighting behavior sunset light must interact naturally with metal arms soft highlights on stainless steel consistent shadow direction no lighting recalibration atmosphere engineered precision keep the mechanism believable and functional no reinterpretation of the yacht design photorealistic mechanical deployment state
