三招食材新鲜度测试：三文鱼/整鱼/西兰花 30 秒教程

First Frame Image Prompt (<<<Image1>>>): A medium close-up shot of a man, wearing a white distressed t-shirt with a USA flag graphic, standing in a bright sunroom or enclosed patio with large glass windows behind him showing a rainy green backyard. He holds a large raw salmon fillet over a clear rectangular glass tank filled with hot water on a marble countertop. The man looks directly at the camera with an instructional expression. Natural daylight, bright and clean, shallow depth of field, smartphone vertical video aesthetic, 720x1280 aspect ratio. Image-to-Video Prompt: Theme: Food quality and safety tutorial - three quick kitchen tests for salmon, whole fish, and broccoli Visuals: Bright sunroom with large glass windows, rainy green outdoor background, marble countertop, clear glass tanks and bowls, raw salmon fillet, whole silver fish, raw broccoli florets, wooden cutting board with raw chicken, salmon, and trout. Prominent yellow and white bold text overlays summarizing each tip. Natural daylight, clean and slightly overexposed smartphone look. Camera: Static medium close-up on the presenter and countertop for the entire video, with occasional slow digital zooms into the food reactions and close-ups of the water tank and broccoli bowl. Style: Bright, informative, DIY social-media tutorial aesthetic; natural color grading with emphasis on orange salmon and green broccoli; bold yellow text overlays; vertical smartphone video format. Action + Sound Design: [0-8s] The man holds up a raw salmon fillet and lowers it into the clear tank of hot water. The salmon quickly begins to flake and break apart into small pieces in the water. He gestures toward the tank and speaks directly to camera. On-screen text appears: "HOT WATER" and "IF IT FALLS APART EASILY THE MEAT ISN'T REAL." Sound: casual spoken narration + light water movement + soft ambient room tone [8-15s] He removes the salmon and places a whole silver fish into a clear tank of cold water. The fish sinks slowly to the bottom. He points at the tank while explaining the freshness test. On-screen text appears: "COLD WATER," "IF IT SINKS," and "IF IT FLOATS IT'S BEEN SITTING ON THE SHELF." Sound: continued narration + gentle water splash + subtle tank tapping [15-23s] He places a glass bowl of raw broccoli florets on the counter and pours water over them, then adds a splash of white vinegar from a clear bottle. The camera slowly zooms in to reveal tiny white worm-like insects and eggs floating in the liquid. On-screen text appears: "WATER WITH A SPLASH OF VINEGAR," "ANY HIDDEN INSECTS AND THEIR EGGS WILL COME LOOSE IN THE WATER." Sound: narration + pouring water + light splashing + subtle vinegar bottle cap sound [23-30s] The man holds up a wooden cutting board displaying a whole raw chicken, several salmon pieces, and a whole fish. He smiles slightly and gestures toward the camera, encouraging viewers to save and follow. The camera slowly zooms in on the cutting board. On-screen text appears: "SAVE THIS AND COMMENT WITH OTHER FOODS," "FOR MORE FOLLOW," and "DON'T MISS OUT." Sound: upbeat closing narration + light cutting board tap + ambient room tone