3D卡通渲染风广播喇叭通知图标元素

128x128 iOS Apple app icon for "宣传顺口溜生成器" (批量处理). Reference: 11-edit.png or 10-realtime.png: simple tool object on colorful tile. Object: one friendly megaphone with two small sound marks. Palette: sky blue, cyan, white, soft yellow accent. Soft gel 3D, bright friendly gradient, one simple concrete object, centered, readable at small size. No black edge/corner/shadow/frame/canvas. White or transparent-looking outer padding, 6-10px. No meaningless white card, extra frame, border panel, container, neon HUD, cyberpunk, text, letters, logo, watermark.