为还没写完的书，先做一张封面

为一本关于 [theme] 的文学小说设计一张无文字书封插画。选择一个具有象征意义的日常物品，在不进行字面叙事的情况下暗示主题。采用象牙色、低饱和橄榄色和焦橙色的克制调色板，优雅的剪纸构图，细微的触感颗粒，为之后排版预留充足负空间。竖向 2:3，扁平插画，不要书籍样机，不要可读文字。让构图带有安静的神秘感。

Design a text-free book cover illustration for a literary novel about [theme]. Choose one symbolic everyday object that suggests the theme without literal storytelling. Use a restrained palette of ivory, desaturated olive and burnt orange, elegant paper-cut composition, subtle tactile grain, ample negative space for later typesetting. Vertical 2:3, flat artwork, no book mockup, no readable text. Give the composition a quiet sense of mystery.