Castillo de Fantasía Bajo Cielo Nocturno Anime

An illustration in [anime background art] style of a sprawling fantasy castle complex at [night]. The deep blue sky is filled with sparkling stars and a [large full moon] positioned in the upper left. The architecture features light gray stone walls, exactly 8 prominent cylindrical towers with [blue] conical roofs, elevated stone walkways bridging the towers, and a main rectangular building with a matching pitched roof. [Warm yellow] light glows warmly from the windows, contrasting with the cool palette. In the central stone-paved courtyard, a small white cube rests mysteriously. The fortress is surrounded by dense dark green forests, with rolling mountain silhouettes fading into the distant background.