模型：Omni flash 提示词：10‑second SNS vertical short‑video, aspect ratio 3:4, 30fps. Setting: Beijing summer street, August midday 13:00, hot humid sunny weather 35℃, strong harsh sunlight, distant developing grey‑white cumulus clouds hinting afternoon thunderstorm, dry ground. First‑person smartphone POV shot, left‑hand holding phone out‑of‑frame, live‑action phone footage composited with rough cute 2D hand‑drawn frame‑by‑frame animation. Ordinary real‑world Beijing street scenes, no famous landmarks, no readable signs or text. Real human right hand enters frame from bottom‑right corner, holding fully fictional childish cardboard toy water‑gun‑style graffiti morph‑device; short chubby asymmetrical white cardboard bulk, cyan‑blue circular scanning ring on front, short clumsy toy‑water‑gun‑like grip, loose uneven black marker outline, visible white paper fiber, sparse cyan‑blue & light‑pink colored‑pencil hatching, single circular energy slot on side, no gun‑barrel, no weapon‑like structures. Maintain identical shape, color, size and hand‑grip posture for right hand and graffiti morph‑device across all shots. Press circular trigger button, scanning ring emits small cyan‑blue hand‑drawn ripple plus few black ink dots only, no shooting, no explosion, no flame, no damage. Ripple hits target, 0.6‑0.8‑second hand‑drawn lock‑on frame appears: wobbly black loose lines, cyan circles, light‑pink scale ticks, jittery graffiti markers tightly sticking onto target respecting perspective and occlusion. After lock‑on finishes, only the targeted everyday object transforms in‑place into rough cute 2D hand‑drawn animation; real‑life humans, streets, buildings, trees and other objects remain live‑action smartphone footage. Four shots connected by clean hard‑cuts only, no fades, no transition effects. Each shot fully shows complete sequence: real‑world target → lock‑on effect → in‑place transform to hand‑drawn version before cutting. [0.0‑2.5s Shot1: takeout thermal box beside subway entrance]: Ordinary Beijing subway entrance exterior, glass canopy, light‑grey stone ground, yellow tactile paving, street trees, no readable station name. Strong midday sun creates bright specular reflection on glass and pavement. Parked electric bicycle at shadow edge, rear rack mounts plain text‑free light‑grey square takeout thermal box. Slight forward walking camera motion. Right hand with graffiti morph‑device enters bottom‑right, aims at thermal box. Trigger pressed, cyan‑blue scanning ripple hits box, lock‑on frame adheres accurately respecting perspective and bicycle occlusion. After ~0.7s, only thermal box transforms in‑place into 2D hand‑drawn version: white‑paper box body, boiling jittery black outline strokes, cyan‑blue edge trim, light‑pink buckles, sparse ink specks; mounting position, dimension, orientation and shadow direction stay exactly unchanged. Electric bike, glass canopy, paving, passers‑by stay live‑action. [2.5‑5.0s Shot2: folding paper fan at grey‑brick hutong entrance]: Beijing grey‑brick hutong entrance under dense locust‑tree shade, dappled sunlight filtering through leaves, background air‑conditioning outdoor units, stone steps, slowly passing pedestrians, no readable house number. Passer‑by in light summer clothes walks left‑to‑right, only lower‑shoulder‑to‑back visible, naturally waving light‑wood folding fan. Graffiti morph‑device tracks fan from bottom‑right. Trigger pressed, lock‑on frame follows fan swinging angle and hand occlusion. After ~0.7s, only folding fan becomes hand‑drawn 2D animation: white‑paper fan surface, loose black‑line fan ribs, cyan‑blue and light‑pink colored‑pencil diagonal hatching. Real human hand, clothes, body and hutong environment keep live‑action. Hand‑drawn fan keeps natural swinging rhythm driven by real human wrist, never detaches from palm. [5.0‑7.5s Shot3: wide‑brim sun hat outside commercial street crossing]: Pedestrian waiting zone outside modern Beijing commercial street, light‑colored pavement, metal bollards, tree pits, blurred shared‑bikes in background, scorching bright sunlight, humid hot air. Passer‑by wearing plain light‑beige wide‑brim sun hat walks slowly from front‑right toward front‑left, back view only, no clear facial features. Slight laggy tracking camera movement. Graffiti morph‑device aims at hat, cyan‑blue ripple travels short distance, lock‑on frame strictly follows hat brim elliptical perspective, head occlusion and walking bounce. After ~0.6s, only sun hat transforms into white‑paper textured hand‑drawn hat: irregular black brim outline, cyan‑blue hatching on hatband, light‑pink marker patch on hat top. Passer‑by hair, body, clothes and whole street stay live‑action. Hand‑drawn hat bounces subtly with walking pace, firmly sits on real human head. [7.5‑10.0s Shot4: cold‑water sports bottle on shaded stone pier]: Street‑corner tree shade, light‑grey stone pier holds text‑free translucent cold‑water sports bottle with carry‑loop, real condensation water droplets on bottle surface. Background sun‑blasted Beijing street, distant slow‑walking pedestrians, rounded summer cumulus clouds in sky. Slight camera push‑in. Graffiti morph‑device from bottom‑right aims at bottle. Trigger pressed, lock‑on frame orbits around bottle for ~0.8s. Only sports bottle transforms in‑place into white‑background black‑line 2D hand‑drawn bottle: translucent white‑paper fill, cyan‑blue bottle cap, light‑pink carry‑loop, colored‑pencil hatching, tiny ink specks. Bottle‑to‑stone‑pier contact point, gravity, perspective and original shadow direction fully preserved. Several wiggly cyan‑blue hand‑drawn cold‑steam lines rise from bottle outer surface, tiny black ink specks float upward like small bubbles. Video ends on frame with swaying cold‑steam lines and slowly drifting distant clouds. 2D hand‑drawn animation style: uneven wobbly black outlines, white‑paper fill, colored‑pencil & marker hatching texture, ink grain, slightly over‑bleeding color blocks, frame‑by‑frame subtle boiling‑line jitter on every drawing frame, child‑like rough cute hand‑drawn aesthetic; no smooth vector graphics, no 3D CG render, no plastic material look, no neon sci‑fi hologram glow. After transformation, converted object strictly inherits original pixel position, scale, orientation, motion trajectory, gravity weight, perspective, occlusion relation, contact anchor points and shadow direction. Only target object visual material gets replaced; background, real‑human figures and supporting objects never animate. Lock‑on frame must stay tightly aligned to target, no misalignment; graffiti morph‑device never changes shape or color across hard‑cuts. Camera spec: smartphone main‑camera 1x wide‑angle, equivalent focal length 24‑28mm, NO 0.5x ultra‑wide / fisheye lens. Electronic image stabilization enabled, preserve subtle natural hand‑held micro‑shake, minor vertical bounce during walking, slight tracking lag, tiny auto‑exposure fluctuation. Right hand and morph‑device near‑lens appear slightly larger with soft minor softness; street background and target objects stay reasonably sharp. No heavy shallow‑depth‑field bokeh blur. Color grading: bright clean pastel cyan‑pink pop aesthetic, keep Beijing street photoreal believability. Sky & glass highlight tint soft pale cyan‑blue, grey brick & stone keep neutral clean tone, skin & warm surfaces tint soft peach‑pink, foliage low‑saturation olive‑green & teal‑green. Exposure lifted +0.5 stop, elevated black‑and‑white levels, low‑to‑medium contrast, subtle smartphone HDR, gentle digital sharpening, light SNS social‑media filter texture. No heavy film grain, no strong lens flare, no teal‑orange cinematic grading, no crushed deep black shadows. Audio: zero dialogue, zero voiceover, zero background music. Only soft button‑click SFX, gentle electronic lock‑on beep sound, marker‑pen‑on‑paper scratching sound, faint ink‑dot pop sound, mixed with quiet real‑world Beijing summer street ambient noise; sound effects precisely sync with four lock‑on trigger moments. Strict prohibitions: no on‑screen text, no titles, no logos, no watermarks, no brand / shop / station / license‑plate readable text. No firearm‑shaped props, no muzzle‑like structures, no bullets, no shooting impact, no attack, no explosion, no fire, no physical destruction. Never animate full‑frame image, never animate real human bodies. No target object drifting, geometry warping, proportion mutation, clipping‑through‑geometry, detaching from contact‑surfaces. Graffiti morph‑device must not alter shape or color. No deformed hands, extra fingers, missing fingers, left‑right‑hand swap errors. No extreme fisheye distortion, no heavy background bokeh, no excessive glowing bloom, no violent camera rotation, no slow‑motion, no black‑out frames, no freeze‑frame.