Continue in the same project. This is optional advanced work. Do not submit anything without a playable A.mp4. Reuse output/A.mp4 from Stage 2, or ask for the downloaded Stage 1 video. Do not regenerate A just to start this stage.
1. Open A and inspect the face, hands and phone at the ending. After I accept it, extract its actual last frame to assets/bridge.png and show it to me. If an earlier frame is needed, trim A to exactly that frame and record why; never silently replace the ending.
2. This exercise defaults to an original virtual person. Upload the frame with the current official CLI and wait for ready. Record its source task. If A contains a real person, keep the derived frame in that person's original verified group. Stop if verification fails; never bypass it with an ordinary upload.
3. Read the current Seedance 2.0 Fast first-frame parameters. Use the bridge as firstFrameAssetId for a 10-second, 480p B with native audio. Use adaptive aspect ratio as required by the current frames mode; do not mix in a reference-image array. Use the prompt below. Show the quote, balance and cumulative exercise cost. Wait for explicit confirmation and submit once. No automatic retry or top-up.
4. Download output/B.mp4 and check that it starts from the supplied frame. Assemble A then B locally into output/final.mp4, retaining originals, audio and both task IDs. Do not overwrite A or B. Let me watch and listen to two seconds on either side of the join: person, phone, movement and volume. A frame helps visual continuity but cannot guarantee the same voice. Report missing native audio as a problem, not a completed silent video.

VIDEO PROMPT:
Continue the supplied first frame as a 10-second video with native audio. Preserve the same virtual creator, face, navy shirt, hands, unbranded phone, desk, lighting and phone orientation. The phone is already raised; do not repeat that action.
Seconds 0–3: hold the opening composition. Seconds 3–8: one slow, straight camera push toward the phone, keeping the entire phone and supporting fingers in view. Seconds 8–10: hold still. Do not change the phone, unfold it, cut to another angle, or add captions or music.
Use a warm English off-screen voiceover between seconds 1 and 7: "Now take it one step further. Keep creating." The visible mouth remains relaxed and closed. Quiet room tone. Keep the final two seconds free of speech. Match the previous clip's vocal character if possible; the visual frame does not guarantee the same voice.