{
  "type": "live stream UI mockup",
  "subject": {
    "description": "portrait of {argument name=\"host name\" default=\"Elon Musk\"}, smiling, wearing a black t-shirt with a white technical schematic graphic",
    "background": "left side shows a screen with '{argument name=\"left background logo\" default=\"SPACEX\"}' text, right side shows a red '{argument name=\"right background logo\" default=\"Tesla T logo\"}' and a dark car"
  },
  "ui_overlay": {
    "top_header": {
      "host_info": "avatar, name '{argument name=\"host name\" default=\"Elon Musk\"}', subtext '556k likes this stream', red 'Follow' button",
      "rank_badge": "gold coin icon with 'No.1 Site-wide'",
      "viewer_stats": "3 top viewer avatars with '123k', '86k', '57k', total '687k', 'X' close button",
      "right_links": "'More streams >', 'Gift Hall 0/24' with blue 'Classic' tag"
    },
    "mid_left_gifts": {
      "count": 2,
      "items": [
        "avatar 'TechFan', 'sent a Little Heart', heart icon x 1314",
        "avatar 'SeaOfStars', 'sent a Rocket', rocket icon x 666"
      ]
    },
    "bottom_left_chat": {
      "system_message": "level 37 badge 'CosmicWanderer joined the stream'",
      "message_count": 7,
      "messages": [
        "LittleRocket: Musk! The future is bright! 🚀",
        "future: When is Tesla Model 2 coming?",
        "StarryDreamer: Can SpaceX reach Mars this year?",
        "AIExplorer: How is Neuralink progressing?",
        "HandsomeNetizen: Hello Boss Ma!",
        "Mars: First time in your stream, super excited!",
        "User123: Talk about AI — will it replace humans?"
      ]
    },
    "bottom_right_product_card": {
      "hot_tag": "orange 'Hot Sale x 1888'",
      "image": "Tesla Cybertruck",
      "title": "{argument name=\"product name\" default=\"Tesla Cybertruck Electric Pickup\"}",
      "price": "{argument name=\"product price\" default=\"¥1,618,000\"}",
      "button": "red 'Buy' button",
      "floating_animation": "translucent hearts floating up the right edge"
    },
    "bottom_bar": {
      "input_field": "'Say something...'",
      "icons": ["smiley face", "three dots", "shopping cart", "gift box", "share"]
    }
  }
}