Morning Greeting City Poster Design

Generate a design for {argument name="subject" default="Good Morning"} featuring flat poster order and realistic focal imagery: first, establish open white space with a large area of vivid, high-brightness color at the top, followed by a nearly equal, low-saturation light-colored paper area at the bottom to form a clean, clear horizontal color boundary. Translate the theme's core form into two sets of oversized, low-detail, heavy, and rounded light-colored character graphics that cross the boundary and bleed to the edges, serving as visual skeletons rather than decoration. Compress the subject into a small-to-medium-scale concrete focal point placed near the boundary, partially obscuring the giant graphics to create clear front-to-back layering. The focal object should be rendered with natural photography or high-texture detail, retaining realistic surfaces, soft top-side lighting, and grounded shadows. Place two lines of theme-related short titles near the left boundary using bold, compact, geometric sans-serif uppercase characters, left-aligned in black to form a strong anchor. Add micro-sized, wide-spaced metadata tags on the upper edges of the graphics for design rhythm. The overall look should feel like clean offset printing on matte paper with fine fibers. Avoid heavy aging, yellowing, or modern gradients. 

Theme: {argument name="quote" default="Good Morning + Greeting"} + {argument name="city" default="Beijing"}

围绕{argument name="主题对象" default="早安"}生成具有平面海报秩序与真实焦点形象的设计：先以一块占据上部的大面积鲜明高明度色场建立开阔留白，再在下部接入一块近乎等量、低饱和的浅色纸面区域，形成干净明确的水平色域交界；让主题的核心形态被转译成两组超大、低细节、厚重圆润的浅色字符化图形，横跨交界线并向左右边缘出血，保留清晰的内部空腔、粗细对比与被边界裁断的切口，图形不是装饰而是背景中的尺度标尺和视觉骨架。把主题主体或核心对象压缩为中小尺度的具象焦点，放在交界附近，局部遮挡巨型图形，使前景对象、图形轮廓与留白发生明确的前后穿插；焦点对象以自然摄影或高度具象的质感表现，保留真实表面细节、柔和的侧上方光线、接地的短而松散的投影，以及不喧宾夺主的中性深色层次。左侧靠近交界的区域放置主题相关的两行短标题，使用粗重、紧凑、几何感明确的无衬线大写字形，行距偏紧、字块整齐左对齐，以黑色或主题最深结构色形成小面积强锚点；在巨型图形上缘两侧加入极小号、宽字距的元信息与编号式短标签，形成稀疏的编辑设计节奏，但文字只承担秩序、尺度和信息提示，不复制固定文案。颜色由主题语义决定色相与材质来源，但维持高明度高纯度主色场对柔和浅底的面积、明度、饱和度和情绪张力关系，巨型图形使用比浅底更醒目或更中性的浅色，深色文字与焦点阴影只占少量；主题色温改变时仍保持大色块对比、清洁边界和有限强调色，不把颜色平均铺满。整体像在哑光纸上进行干净的平面印刷，纸张有细微均匀纤维与颗粒，浅底和色场存在轻微密度不匀，实拍对象边缘与印刷图形边缘清楚但不过度锐利，色块交界保持利落，避免厚重做旧、泛黄、脏污、额外装饰和现代渐变；让背景留白、巨型图形、短标题、微型标签、焦点对象和接地阴影共同形成从大色场到文字再到主体的阅读路径，若去掉图形遮挡、色域交界或尺度反差，画面应立即失去这种克制而有张力的设计识别度。

主题：{argument name="金句" default="早安+问候+GOOD MORNING"}+{argument name="城市" default="北京"}