创建一幅高端的 4:5 竖版复古丝网印刷海报插画，主体围绕 [SUBJECT / LANDMARK / CITY / ERA]（主题…

Create a premium 4:5 vertical retro screen-print poster illustration centered on [SUBJECT / LANDMARK / CITY / ERA]. The composition should feel like a refined vintage travel or cultural print, while remaining adaptable to any location, historical period, landmark, or subject. TYPOGRAPHY: Place the primary title "[MAIN TITLE]" in a bold, condensed uppercase sans-serif, positioned within a balanced area of negative space. Add a smaller supporting line "[SECONDARY HEADLINE / LOCATION / DATE]" beneath it. Maintain strong typographic hierarchy, restrained spacing, and an authentic archival-poster character. MAIN SUBJECT: Feature [PRIMARY SUBJECT] as the dominant visual element, positioned within the lower or side third of the composition. Use a distinctive pose, silhouette, or profile that communicates the character of the subject. Include carefully rendered defining details, natural contours, expressive features, clothing or architectural details, and subtle highlights without making the artwork photorealistic. GEOMETRIC ANCHOR: Introduce one bold, simple geometric shape behind or around the main subject to create visual separation and establish a strong graphic focal point. BACKGROUND: Construct the environment as several flat, layered graphic planes rather than a conventional realistic scene. Use recognizable elements associated with [LOCATION / SUBJECT] — distant silhouettes, architectural forms, structural details, vegetation, terrain, atmospheric elements, or cultural motifs. Avoid a strong vanishing point. Build depth through overlapping shapes, scale, linework, and tonal density. Render clouds, smoke, mist, foliage, or atmospheric details as controlled stippled clusters where appropriate. RENDERING STYLE: Authentic vintage screen-print / silkscreen poster aesthetic. Create all tonal modeling exclusively through stippling, halftone patterns, and varying dot density — concentrated dots for shadows and sparse dots for highlights. No smooth gradients, airbrushing, photorealistic shading, or digital 3D rendering. Use crisp contour lines with consistent visual weight, subtle riso-style registration shifts, imperfect ink edges, natural paper grain, and faint woven-print texture. The result should feel physically printed rather than digitally rendered. COLOR SYSTEM: Use exactly four carefully selected high-contrast colors appropriate to the subject: [COLOR 1], [COLOR 2], [COLOR 3], [COLOR 4]. Do not introduce additional hues. Generate intermediate tonal values exclusively through stipple density, halftone overlap, and ink coverage, never by adding new colors. COMPOSITION: Strong editorial balance, clear focal hierarchy, generous negative space, layered depth, bold silhouette design, authentic vintage graphic-design proportions, and carefully controlled visual density. Keep the artwork sophisticated, collectible, and suitable for a premium travel or cultural poster. OUTPUT: 4:5 vertical aspect ratio, edge-to-edge poster composition, high detail, crisp print-ready appearance, cohesive screen-print texture, no modern photographic elements.

创建一幅高端的 4:5 竖版复古丝网印刷海报插画，主体围绕 [SUBJECT / LANDMARK / CITY / ERA]（主题 / 地标 / 城市 / 时代）展开。整体构图应呈现精致的复古旅行或文化印刷品风格，同时能够灵活适配任何地点、历史时期、地标或主题。 TYPOGRAPHY（字体排版）：将主标题 "[MAIN TITLE]" 以粗体、压缩型大写无衬线字体置于均衡的负空间区域内。在其下方添加一行较小的辅助文字 "[SECONDARY HEADLINE / LOCATION / DATE]"。保持强烈的字体层级关系、克制的字距，以及真实可信的档案海报质感。 MAIN SUBJECT（主体）：将 [PRIMARY SUBJECT] 作为画面中最具支配性的视觉元素，置于构图的下三分之一或侧三分之一位置。采用具有辨识度的姿态、剪影或侧脸轮廓，以传达主体的特征。精细刻画其关键细节、自然轮廓、富有表现力的特征、服饰或建筑细部，以及细腻的高光，但不要使画面具有照片级的写实感。 GEOMETRIC ANCHOR（几何锚点）：在主体后方或周围引入一个醒目而简洁的几何形状，以营造视觉分离并建立一个强烈的图形焦点。 BACKGROUND（背景）：将环境构建为若干扁平、分层的图形平面，而非传统的写实场景。使用与 [LOCATION / SUBJECT]（地点 / 主体）相关的可识别元素——远景轮廓、建筑形态、结构细节、植物、地形、大气元素或文化母题。避免使用强烈的透视消失点。通过形状的重叠、比例、线条与色调密度来构建纵深。云朵、烟雾、雾气、植被或大气细节在适用处以受控的点描簇进行刻画。 RENDERING STYLE（渲染风格）：正宗复古丝网印刷 / 绢网印刷海报美学。所有色调塑造仅通过点描、半色调图案与变化的网点密度来实现——阴影处网点密集，高光处网点稀疏。禁止使用平滑渐变、气笔、照片级写实明暗或数字三维渲染。使用粗细一致的清晰轮廓线、细微的 riso（ Risograph ）风格套色错位、不完美的油墨边缘、自然的纸张纹理以及隐约的织物印刷纹理。整体效果应让人感到是物理印刷而成，而非数字渲染。 COLOR SYSTEM（色彩体系）：仅使用恰好四种经过精心挑选的高对比度、契合主体内容的颜色：[COLOR 1]、[COLOR 2]、[COLOR 3]、[COLOR 4]。不得引入其他色调。中间色调值只能通过点描密度、半色调叠加和油墨覆盖率来生成，绝不通过添加新颜色来实现。 COMPOSITION（构图）：强烈的编辑式平衡、清晰的视觉主次层级、充裕的负空间、分层的纵深、大胆的剪影设计、正宗的复古平面设计比例，以及经过精细控制的视觉密度。保持作品的高雅感、收藏价值，并适合作为高端旅行或文化海报使用。 OUTPUT（输出）：4:5 竖版比例，画满边缘的海报构图，高细节度，清晰的印刷成品观感，整体统一的丝网印刷质感，不出现任何现代摄影元素。