直播观看页界面

Design a pixel-crisp desktop UI mockup of a livestream watch page on a modern unbranded video platform, rendered in dark mode like a browser screenshot. Across the top place a slim header with a generic play-button logo, rounded search bar, and icons for microphone, create, notifications, and profile. Fill the main column with a large 16:9 player showing the presenter, event, or scene from the user request, with a red LIVE badge, semi-transparent scrolling chat with colored usernames, a small goal ticker, and a lower-third banner. Along the player bottom run a control bar with pause, next, volume, LIVE progress, captions, settings, miniplayer, theater, and fullscreen icons. Below it set a bold title, channel row with circular avatar, verified check, subscriber count, and Subscribe button, then pill buttons for like, dislike, share, and save, plus a rounded description box with watching-now stats, hashtags, and truncated text. Keep typography sharp on a clean grid with legible text. Do not use real platform, company, or streamer branding, logos, or watermarks. User request: a tech founder on stage unveiling a new AI model, title 'Launch day live'