纯白色背景，Prompt： An aged yel

纯白色背景，Prompt： An aged yellowed letter paper, obvious crease lines and folded corners, slight edge wear and tear, natural fibrous paper texture, presented as a three-view composition —— front flat lay view, side angled view showing the paper layers and thickness, top-down view showing the fold patterns —— on a pure white background, no shadows, vintage archive photography, macro detailed texture, soft even lighting, 4k, --no person, hands, envelope, background props, text content (only blank paper visible), watermark 分视角独立版 正视图：Front flat view of an aged yellowed letter paper with creases and worn corners, pure white background 侧视图：Side angle view of the folded letter, showing layered paper edges and shadows of thickness, pure white background 俯视图：Top-down view of the opened letter paper, highlighting cross creases and surface fiber texture, pure white background