实战案例：用AI提示词拍摄客制化机械键盘全套电商图，从铝坨坨CNC纹理到键帽字符微距9图

你是一位高端数码产品摄影师。为键屿KN-75建立产品视觉规范：

1. 产品卡（每张图严格一致）：
   - 配列：75%紧凑配列，82键，右上角单颗旋钮，方向键为下沉式独立设计
   - 机身：6063铝合金CNC一体成型，深空灰阳极氧化（matte anodized dark gray），表面细腻砂粒感不是亮面
   - 键帽：PBT二色成型，深灰色原厂高度（Cherry profile），字符为简洁无衬线小写
   - 结构：Gasket软弹结构，侧面可见轻微分层缝隙
   - 灯光：键缝透出柔和暖白背光（默认图），RGB仅在指定图出现且要克制

2. 9张图清单：45度主图、正面俯拍、右侧CNC纹理微距、旋钮特写、轴体插拔特写、Gasket结构侧剖、RGB氛围图、电竞桌面场景图、包装全家福
3. 布光：左45度大型柔光箱+右后方轮廓光，金属边缘留一条细高光
4. 避坑：塑料感、乱码字符、键数错误、字符发光过曝、浮夸光污染

[主图]
Professional e-commerce product photo of a 75-percent compact custom mechanical keyboard, 82 keys, CNC-milled unibody 6063 aluminum case in matte anodized dark gray with fine sandblasted grain, dark gray PBT double-shot keycaps in Cherry profile with clean sans-serif lowercase legends, one metal volume knob at top right, recessed arrow keys, soft warm-white backlight seeping from key gaps, 45-degree front elevated angle, large softbox from upper left, thin rim light on the metal edge, medium gray seamless background, ultra sharp, Sony A7R macro, f/9, --ar 4:5
[Negative] plastic case, glossy paint, garbled key legends, extra keys, missing knob, neon RGB, watermark, text logo

[俯拍]
Flat top-down photo of the same dark gray aluminum 75-percent keyboard perfectly aligned vertically, clean symmetric layout visible, subtle warm-white glow between keycaps, faint shadow on a matte charcoal desk mat, technical catalog style, --ar 1:1

[CNC纹理微距]
Extreme macro of a matte dark gray anodized aluminum keyboard case edge, ultra-fine uniform sandblasted texture, precision CNC chamfer catching a thin bright specular highlight, visible layered Gasket seam between top and bottom case, raking light, industrial quality photography, shallow DOF, --ar 4:5
[Negative] painted plastic, orange peel texture, brushed steel lines, rust, rough machining marks

[旋钮特写]
Macro close-up of a single precision-machined aluminum volume knob on a dark gray keyboard, knurled diamond texture on the knob side for grip, satisfying metallic weight implied, soft warm-white indicator LED at its base, dark background, premium hi-fi aesthetic, --ar 1:1

[轴体插拔特写]
A dark gray PBT keycap pulled off revealing a hot-swappable tactile switch, switch top housing transparent smoke-gray with gold-plated contacts visible, metal switch puller resting beside, other keycaps softly blurred, even studio light, product teardown photography, --ar 4:5
[Negative] soldered switch, springs flying out, cartoon cross-section, dusty interior

[RGB氛围图]
The same 75-percent dark gray mechanical keyboard in a dark room at dusk, restrained smooth RGB gradient (teal to violet only) softly glowing from under each keycap, light reflecting gently on matte aluminum edges, no light spill on desk, moody but tasteful desk setup photography, 35mm, --ar 16:9
[Negative] rainbow disco, blinding brightness, gaming café neon overload, red-blue police lights, glowing logos

[桌面场景图]
Lifestyle photo of the dark gray custom keyboard on a clean minimalist creator desk: matching matte black monitor stand, one small potted succulent, warm desk lamp in the corner, ceramic coffee cup, late afternoon window light, shallow depth of field, realistic workspace, --ar 4:5
[Negative] gaming chair RGB explosion, energy drink cans, cluttered cables, anime posters

[包装全家福]
Flat lay of keyboard, coiled aviator USB-C cable, metal switch puller, keycap puller, spare switches in a small case and a matte black retail box with minimal unbranded design, arranged neatly on warm gray background, premium unboxing aesthetic, soft shadows, --ar 1:1