日本の鉄道ロゴの6つのバリエーション

{
  "type": "logo style sheet",
  "subject": "Japanese title logo variations for the text {argument name=\"title text\" default=\"鉄道プレス\"}",
  "background": "plain white",
  "rendering": "high-resolution polished promotional logo concepts",
  "layout": {
    "grid": {
      "rows": 3,
      "columns": 2
    },
    "count": 6,
    "sections": [
      {
        "position": "top-left",
        "count": 1,
        "labels": [
          "metallic luxury emblem"
        ],
        "design": "large chrome-and-steel 3D Japanese lettering with black shadows and gold trim, a dark blue circular rail wheel emblem behind the text, a sleek modern bullet train integrated across the top-right, winged gold crest and rail tracks beneath, dramatic premium game-logo look"
      },
      {
        "position": "top-right",
        "count": 1,
        "labels": [
          "cute pastel cloud logo"
        ],
        "design": "rounded bubbly Japanese lettering in pink, lavender, and cyan gradient with thick white outline, fluffy clouds around the logo, tiny pastel stars, circular roller-coaster-like rail line in the background, and a small navy conductor cap with gold badge tilted on the top-right of the text, soft idol-pop fantasy aesthetic"
      },
      {
        "position": "middle-left",
        "count": 1,
        "labels": [
          "speed shinkansen logo"
        ],
        "design": "bold italicized orange-to-gold gradient Japanese lettering with black outline and red speed slashes, a realistic white and silver shinkansen bursting from behind the right side, dark circular rail motif behind the text, aggressive motion-focused sports-logo composition"
      },
      {
        "position": "middle-right",
        "count": 1,
        "labels": [
          "steampunk locomotive logo"
        ],
        "design": "heavy bronze and antique gold 3D Japanese lettering integrated into a steampunk machine, surrounded by visible gears, cogs, pipes, pressure gauges, and a smoking steam locomotive stretching along the top of the wordmark, industrial Victorian mechanical aesthetic"
      },
      {
        "position": "bottom-left",
        "count": 1,
        "labels": [
          "family-friendly eco logo"
        ],
        "design": "soft rounded hiragana-like and kanji-style lettering in green, brown, pink, and orange with white fill and gentle outline, playful children’s-education feel, small train car icon at bottom-left, horizontal rail track below, colorful railroad signal on the right, tiny clover and tree motifs, friendly and approachable"
      },
      {
        "position": "bottom-right",
        "count": 1,
        "labels": [
          "futuristic neon logo"
        ],
        "design": "sharp angular Japanese lettering in electric blue, indigo, and violet glow with white highlights, surrounded by a luminous cosmic ring and small digital particles, subtle train silhouette merged into the lower center, sci-fi cyber-tech branding style"
      }
    ]
  },
  "style_constraints": {
    "all_variants_include_same_text": true,
    "language": "Japanese",
    "spacing": "evenly separated with generous white margins",
    "perspective": "straight-on centered presentation for each logo",
    "no_mockup": true
  },
  "customization": [
    "{argument name=\"title text\" default=\"鉄道プレス\"}",
    "{argument name=\"background color\" default=\"white\"}",
    "{argument name=\"top-left theme\" default=\"metallic luxury emblem\"}",
    "{argument name=\"middle-right theme\" default=\"steampunk locomotive\"}",
    "{argument name=\"bottom-right theme\" default=\"futuristic neon\"}"
  ]
}