Build a massive and epic medieval c...

Build a massive and epic medieval castle with multiple defensive layers including outer walls, inner walls, towers, and a gatehouse, featuring several courtyards, a central keep, and large-scale layout, with highly detailed architecture, tall towers, battlements, and realistic depth; include large interior halls, long corridors, staircases, and fully decorated rooms (throne room, dining hall, storage, bedrooms); use a rich block palette of stone, cobblestone, stone bricks, cracked and mossy stone bricks, and dark oak wood, with strong variation and detail.