图板换了白纸，旁边塌掉的小椅子
空白图纸只留一道椅子浅稿，倒在地上的原型缺了条腿，背景全透明。
✍️ 参数党只看数：16:9、alpha 为零、四周留边。not white, not colored, no checkerboard 三连否定，是背景真透明的关键。只看能不能抠。
📋 提示词 自然语言1193 字符
Staged editorial photography, three-quarter view, 16:9 wide frame. A freestanding, tilted wooden drawing board carries one fresh blank drafting sheet with only a faint, newly drawn chair outline; a plain wooden pencil lies diagonally across the lower corner, its tip aimed at that faint outline. On the ground beside the board, a collapsed miniature chair prototype lies on its side, one detached leg next to it, clearly failed beside the fresh start. Together the clean sheet and the broken prototype read as a single return to planning, centred as an isolated cutout asset.
Isolate everything on a fully transparent background: alpha equals zero, not white, not coloured, no checkerboard pattern, a real alpha channel. Board, sheet, pencil and prototype sit completely inside the frame with clear margin on every side. Under the board and the fallen chair, put a soft semi-transparent black contact shadow in the alpha channel, darkest where things touch and fading outward. Soft daylight falls consistently over wood and paper. Every surface stays plain and unmarked: the sheet shows only the faint chair outline, with no letters, numbers, other diagrams, logos or extra subjects anywhere.
📋 中文译写版 自然语言
棚拍编辑摄影，四分之三视角，16:9 宽幅。一块独立站立、略微倾斜的木制绘图板，上面只放一张全新的空白制图纸，纸上只有一道刚画下的椅子浅稿；一支普通木铅笔斜搭在纸的下角，笔尖指向那道浅稿。板子旁的地面上，倒着一把坍塌的迷你椅子原型，横躺着，一条断腿落在旁边，在全新的开始旁边明显是失败品。干净的图纸与破损的原型合起来，读作一次回到规划的动作，居中作为独立的抠图素材。
所有内容隔离在完全透明的背景上：alpha 等于零，不是白色，不是有色，没有棋盘格，必须是真实的 alpha 通道。图板、图纸、铅笔和原型都完整落在画面内，四周留出清晰边距。图板和倒下的椅子下方，在 alpha 通道里放柔和的半透明黑色接触阴影，接触处最深并向外渐隐。柔和的日光一致地落在木头和纸上。所有表面保持素净无标记：图纸上只有那道淡淡的椅子轮廓，任何地方都不要有字母、数字、其他图示、徽标或多余主体。
