围绕具体主题内容生成一张竖版编辑广告式视觉海报，先把主题拆成两种可见场域。上方是更浅、更空、更低饱和的概念空气场，承载标题、轻量符号、年份感标记和阅读呼吸；下方是更饱和、更有承托感的实体体验场，承接主体、材质、短句和情绪温度。两场之间保留明确的硬切分界或近似硬切的色面转折，分界线像版面结构而不是自然风景，不用复杂场景解释主题。核心对象位于中轴偏下并跨越分界，顶部或外缘进入概念场，主体质量沉入体验场，边缘综合透明感、反光关系、同色叠合、轮廓压缩与高光折射，和两个背景场发生轻微融合，使对象像连接两种语义的桥，而不是贴在底色上的素材。最高细节密度只集中在核心对象内部，表现其材质、纹理、折射、颗粒、内部层次和可触摸的真实感，背景、图标和文字保持平面、干净、低噪声。色彩采用大面积结构色、锐利深色文字、白色或高明度高光、小面积主题触发色的层级关系；主题变化时改变色相和温度，但保持上场轻、下场重、文字深、主体亮、触发色小而准确的比例。上半画面让主标题成为图形结构，使用强尺度差、克制黑色、硬朗字形骨架，并设置一个更具曲线张力或高反差的字形事件参与叠压和节奏，让文字像气味、速度或情绪的可见轨迹。辅助文字压缩为边缘注释、主体下方短句和底部低对比微型 metadata，底部可形成很浅的信息带，像出版物页脚一样安静收束。概念场中安排一个由主题语义派生的空心单线符号，线条简洁、低密度、只作为感官或概念旁证。整体保留宽阔留白和非对称平衡，中心主体稳定，边缘文字形成轻微压力，底部信息带收住版面，视觉第一眼看到硬切双场、跨场主体、巨大黑字、低声量符号和清洁的现代平面秩序。
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本次主题：鲁迅书籍 《呐喊》推荐海报
比例16:9 横版
Generate a vertical editorial advertising-style visual poster based on specific theme content, first splitting the theme into two visible fields. The upper part is a lighter, emptier, lower-saturation conceptual air field, carrying the title, lightweight symbols, a sense of the year markers, and reading breath; the lower part is a more saturated, more supportive physical experience field, carrying the main subject, materials, short sentences, and emotional temperature. Maintain a clear hard-cut boundary or an approximate hard-cut color plane transition between the two fields; the boundary line is like a layout structure rather than natural scenery, without using complex scenes to explain the theme. The core object is located on the central axis, slightly lower, and spans the boundary, with the top or outer edge entering the conceptual field and the main mass sinking into the experience field; the edges integrate transparency, reflective relationships, same-color layering, contour compression, and highlight refraction, slightly merging with the two background fields, making the object like a bridge connecting two semantics rather than material pasted on a background color. The highest detail density is only concentrated inside the core object, expressing its material, texture, refraction, particles, internal layers, and touchable realism; the background, icons, and text remain flat, clean, and low-noise. The colors adopt a hierarchical relationship of large-area structural colors, sharp dark text, white or high-brightness highlights, and small-area theme trigger colors; when the theme changes, change the hue and temperature, but maintain the proportion of light upper field, heavy lower field, dark text, bright subject, and small but accurate trigger colors. Let the main title become a graphic structure in the upper half of the image, using strong scale differences, restrained black, and a tough font skeleton, and set a glyph event with more curved tension or high contrast to participate in overlay and rhythm, making the text like a visible trajectory of smell, speed, or emotion. Auxiliary text is compressed into edge annotations, short sentences below the subject, and low-contrast miniature metadata at the bottom; the bottom can form a very shallow information band, ending quietly like a publication footer. Arrange a hollow single-line symbol derived from the thematic semantics in the conceptual field, with simple lines, low density, and serving only as sensory or conceptual evidence. The overall design retains wide white space and asymmetrical balance, with a stable central subject, edge text forming slight pressure, and the bottom information band closing the layout; the first visual glance sees the hard-cut dual fields, the cross-field subject, huge black characters, low-volume symbols, and clean modern graphic order.
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Theme for this session: Lu Xun's book "Call to Arms" recommendation poster
Ratio 16:9 landscape
