{
  "prompt": "Create a polished 1920x1080 16:9 YouTube frame for a Vietnamese audio-story channel, divided into exactly three vertical regions with boundaries at 31.25 percent and 68.75 percent of width.\nLEFT REGION only: atmospheric hand-drawn flat 2D Chinese manhua background in limited teal, cream, amber and brick-red palette. Exact large heading \"Gác Mái Audio\". Three stacked modern CTA buttons with exact labels \"Like\", \"Share\", \"Subscribe\" and simple matching icons. Keep every left element inside the left 31.25 percent and above the bottom safe zone.\nCENTER REGION exactly 37.5 percent: one perfectly uniform pure chroma-green #00FF00 rectangle, edge to edge top to bottom. Absolutely empty: no people, objects, text, texture, gradients, shadows, decoration, borders or overlap from either side.\nRIGHT REGION only: exact Vietnamese story title \"Những Con Dấu Dưới Mái Kính\" in at most three lines. Below it a text-free portrait of protagonist Lâm Vãn Ninh: 29-year-old Chinese-inspired woman, long black hair tied low, brown eyes, blue-gray shirt and beige coat, calm restrained expression. Strict hand-drawn flat 2D Chinese manhua/webtoon, crisp ink outlines, hard-edged cel shading. Keep all content inside the right 31.25 percent.\nNo other text, no player controls, progress bar, subtitles, waveform, handwriting, annotations, watermark, signature, random letters, photorealism, semi-realism, 3D, CGI, painterly rendering. Side rails must not intrude into the green center.",
  "output": "/data/video-pipeline/GacMaiAudio/project/gacmai_20260713_050144/tests/three-panel-5min/frame_generated.png",
  "visual_review": "pending"
}