移动端群聊消息应用

生成一张 4:5 竖版 1024x1280 的移动端群聊消息应用案例图。画面主体是一台真实比例的无品牌现代安卓手机，手机屏幕必须保持自然 9:19.5 竖屏比例，不要拉宽、不要压扁、不要变形；手机完整居中，四周是干净浅灰背景和轻微阴影。屏幕内是浅色模式群聊界面：顶部状态栏 9:41，应用栏有返回箭头、四格群头像、群名「产品团队 🏗」、电话图标和更多图标。聊天内容包含左侧浅灰圆角气泡、右侧青绿色圆角气泡、彩色小字发送者名称、模糊图片缩略图、文件附件「Q3简报.pdf · 2.4 MB」、语音条「0:47」、emoji 反应行、底部输入栏含表情、附件、相机图标。UI 元素清晰、间距真实、中文文字为主；不出现真实品牌 logo、水印、英文乱码。

Create a 4:5 vertical 1024x1280 case image for a mobile group chat app. Center a realistic, unbranded modern Android phone with a natural 9:19.5 portrait-screen ratio; do not stretch, widen, compress, or distort the phone or UI. The screen shows a light-mode group chat: status bar at 9:41, back arrow, 2x2 group avatar grid, group title "产品团队 🏗", call icon, more icon, incoming light-gray bubbles, outgoing teal bubbles, sender names in small colored Chinese text, a blurred image attachment, a file chip "Q3简报.pdf · 2.4 MB", a voice message bar "0:47", emoji reactions, and a bottom input bar with emoji, attachment, and camera icons. Clean pale-gray background, subtle device shadow, Chinese UI text, no real brand logo, watermark, or garbled text.