Create a low-poly 3D model of a small wooden raft, inspired by the raft in the game Krew.io. The raft should be built using rectangular wooden planks arranged side by side to form a flat base. Add four small upright log posts on each corner, with basic rope lashings. Place a single central mast made of a vertical wooden pole, supporting a slightly curved, rectangular white cloth sail. The sail should look wind-filled and be tied with simple rope. The overall style should be simple, game-ready, and optimized for use in online multiplayer games with a cartoony, stylized aesthetic. No high-detail textures, only solid or gradient colors.