Premium Mechanical Keyboard Ad Poster

{
  "type": "High-end product advertising posters",
  "subject": {
    "product": "{argument name=\"product name\" default=\"X75\"} mechanical keyboard",
    "category": "75% Compact Wireless Mechanical Keyboard",
    "color": "Deep navy blue, accented with dark cyan.",
    "material": "Matte plastic casing with rounded keycaps",
    "branding": "The small badge in the upper right corner of the keyboard",
    "layout badge": "A cream-colored square badge with a black X symbol is affixed to the upper right edge of the keyboard."
  },
  "scene": {
    "setting": "Warm and atmospheric desktop setup",
    "surface": "A dark brown leather placemat is placed on a light-colored wooden tabletop.",
    "lighting": "The cinematic warm-toned directional light from the upper right corner creates a soft reflection and a luxurious, high-tech advertising atmosphere.",
    "background": "A dark, blurry office or desk environment with a coffee cup in the upper right corner and other items on the desk vaguely visible."
  },
  "composition": {
    "format": "Before and after comparison of split-screen promotional images",
    "panels": [
      {
        "position": "left half",
        "style": "Simple, casual snapshots",
        "description": "A top-down photo of the keyboard centered on a large brown desk mat, in bright ambient light, with the edge of a light-colored wooden desktop visible at the top, and a monitor stand or part of a silver device at the top center. This is an authentic, unretouched product photo."
      },
      {
        "position": "right half",
        "style": "Upgraded high-end advertising design",
        "description": "The same keyboard is presented dramatically on a brown leather desk mat, with darker exposure, richer contrast, warm highlights, and shallow depth of field, as if meticulously retouched for a commercial purpose."
      }
    ]
  },
  "text elements": {
    "headline": "{argument name=\"headline text\" default=\"X75\"}",
    "subheadline": "mechanical keyboard",
    "tagline": "{argument name=\"tagline\" default=\"Simple yet sophisticated, efficient every day.\"}",
    "feature line count": 4,
    "feature line items": [
      "75% compact layout",
      "mechanical shaft",
      "Multi-system compatibility",
      "Long battery life"
    ]
  },
  "bottom feature cards": {
    "count": 4,
    "cards": [
      {
        "title": "75% compact layout",
        "description": "Preserving the high-efficiency area saves desktop space",
        "visual": "Close-up of the corner of the keyboard"
      },
      {
        "title": "mechanical shaft",
        "description": "Clear paragraph breaks and excellent typing feedback",
        "visual": "Close-up of a mechanical shaft with a translucent casing"
      },
      {
        "title": "Multi-system compatibility",
        "description": "Supports Windows / macOS / iOS / Android",
        "visual": "Four platform icons: Windows, Apple, iOS, Android"
      },
      {
        "title": "Long battery life",
        "description": "Low-power design for lasting companionship.",
        "visual": "Battery icon, labeled as{argument name=\"battery capacity\" default=\"3000 mAh\"}"
      }
    ]
  },
  "style": {
    "design language": "High-end Chinese e-commerce main image poster",
    "color palette": "Deep navy blue, charcoal gray, copper brown, warm amber highlight, cream typography",
    "typography": "The product name is in a bold, modern sans-serif font, with smaller, all-caps English subtitles and concise Chinese text.",
    "finish": "Exquisite commercial retouching, delicate vignetting, glossy highlights, and a high-end atmosphere."
  }
}