复古主机游戏风低多边形环境背景

创作一张可用作电子游戏场景背景的全幅环境图，默认场景为薄雾笼罩的山谷，包含棱角分明的低多边形峭壁、蜿蜒小径和稀疏的几何造型松树。采用复古主机早期3D游戏的低多边形视觉语言：大而清晰的多边形面、分段简化的地形轮廓、有限而协调的色彩、较少的几何细节，以及轻微的复古低分辨率纹理观感。地平线和前中远景层次分明，构图适合后续叠加游戏角色或界面，背景主体不要过度拥挤。使用灰板岩蓝、苔藓绿和风化土色作为统一配色，保持环境中明暗和色彩关系一致。画面呈现为完整的游戏背景艺术，而非控制台截图；不出现人物、角色、HUD、菜单、文字、平台标志、水印或现有游戏的可识别专属元素。避免现代照片级写实、复杂高模细节和品牌仿冒。

【English Prompt】
Create a full-frame environment image that can serve as a video-game background. Default setting: a misty mountain valley with angular low-poly cliffs, a winding path, and sparse geometric pine trees. Use the visual language of retro early-3D console games: broad readable polygon faces, segmented simplified terrain silhouettes, a limited harmonious palette, sparse geometric detail, and a subtle low-resolution vintage texture impression. Separate the foreground, middle distance, and horizon clearly, and keep the composition open enough for game characters or interface elements to be overlaid later. Use muted slate blue, moss green, and dusty earth tones consistently across the environment's light and color relationships. Present this as finished game background art, not a screenshot of a console or game interface. Include no people, characters, HUD, menus, text, platform logos, watermarks, or recognizable proprietary elements from an existing game. Avoid modern photorealism, dense high-poly detail, and brand imitation.

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