案例研究
April 27, 2026
April 27, 2026

Seedance 2.0 + Flowith:香港3步AI出片Workflow(15秒廣告實戰)

Table of Contents

你可能已經用緊AI寫文、出post,甚至生成圖片。
但一到「短片」,你仲係:

  • 諗idea卡住
  • 寫script慢
  • 剪片更慢

結果一條15秒廣告,花你幾個鐘。

問題唔係你能力,而係你流程。

而家最有效嘅做法,唔係「用AI幫手」,而係——
👉 用AI建立一條完整Workflow,直接出片。

以下我會用一個香港本地案例(茶餐廳廣告),帶你一步步砌好一條可以即用嘅3-step AI出片流程。

你可以直接copy所有Prompt,用喺自己品牌。

第一步:用 Flowith 自動生成廣告方向

大部分人第一步已經輸咗。

因為你係「自己諗」,而唔係「設計AI幫你諗」。

你需要做嘅唔係問AI:「幫我諗廣告」
而係——

👉 定義好角色 + 場景 + 輸出格式

直接用呢個Prompt(可即用):

你係一個香港本地廣告創意人(熟悉IG Reels節奏、港式文化同貼地表達),幫我為以下品牌設計3個「15秒內短片廣告概念」。

【品牌資料】
品牌名稱:華記冰室
地點:旺角西洋菜街
產品:午市套餐(餐肉煎蛋飯 + 凍檸茶)
價格:$42
目標客群:附近返工嘅打工仔、學生
平台:IG Reels / Threads

【創作要求】
- 廣東話語境,貼地自然
- 必須有對白或旁白
- 節奏快(15秒內)
- 畫面要簡單易拍 / 易生成
- 風格要有港味(唔好corporate)

【輸出格式】
每個方向包括:
1. 概念名稱
2. Hook(吸引停低睇)
3. 一鏡到底畫面(15秒)
4. 廣東話對白(口語)
5. 情緒基調

請提供3個完全不同風格方向。

呢一步嘅關鍵唔係創意,而係「限制」。

限制越清晰,AI越好用。

第二步:將概念轉成 Seedance 2.0 Video Prompt

大部分人會停喺「有idea」,但唔識變成「可生成畫面」。

而呢一步,先係分水嶺。

你要將:

👉 廣告concept → 視覺語言

以下係可以直接copy用嘅Prompt(已優化):

I have selected a Hong Kong cha chaan teng lunch advertisement concept.

Convert it into a highly detailed Seedance 2.0 video generation prompt.

Requirements:
- Duration: 15 seconds
- One continuous shot (no cuts)
- Natural Cantonese dialogue must be spoken by the character

Dialogue (must be included exactly):
「呢個套餐㗎,我自己都日日食㗎。四十二蚊啫,你試吓啦。華記冰室,等你嚟。」

Include:

Subject & Action:
- Middle-aged Hong Kong female boss
- Standing behind counter
- Holding or pointing to luncheon meat egg rice + iced lemon tea

Camera:
- Start close-up of food
- Slowly push in to subject
- Slight handheld movement

Environment:
- Authentic Hong Kong cha chaan teng
- Tiled walls, handwritten menu
- Red stools, busy lunch crowd
- Steam visible

Lighting:
- Fluorescent + warm tones
- Slight yellow-green grading

Style:
- Documentary, authentic, local Hong Kong vibe

Audio:
- Cantonese speaking
- Background kitchen noise

Keep it under 150 words, precise and visual.

最關鍵一點:

👉 一定要「寫死」對白 + 語言

否則AI會自己亂生成。

第三步:直接生成影片(Seedance 2.0)

你可以用上面Prompt生成。

或者直接用我幫你寫好嘅完整版(可即用):

A 15-second one-take documentary-style video inside an authentic Hong Kong cha chaan teng. The camera starts with a close-up of a steaming plate of luncheon meat and fried egg rice, with a glossy runny yolk, and an iced lemon tea beside it with visible condensation. The camera slowly pushes in toward a middle-aged Hong Kong female boss standing behind the counter. She looks directly into the camera and speaks naturally in Cantonese: "呢個套餐㗎,我自己都日日食㗎。四十二蚊啫,你試吓啦。華記冰室,等你嚟。" She gestures toward the food warmly. Background shows a busy lunch scene with customers eating, tiled walls, handwritten menu boards, red stools, and kitchen steam. Lighting is mixed fluorescent and warm tones, slightly yellow-green graded. Slight handheld movement, raw, authentic Hong Kong documentary style.

生成時間通常:30–60秒
你會得到一條:

  • 有廣東話
  • 有場景
  • 有情緒
  • 可直接用嘅廣告片

最重要你要明白一件事:

你唔係學緊「點用AI工具」
你係學緊——

👉 點樣用AI建立一條內容生產系統

當你有呢條Workflow,你可以:

  • 一日出10條片
  • 測試唔同Hook
  • 快速優化轉換

而唔係再靠靈感。

最後送你一句:

👉 慢唔係因為你唔夠快,而係你仲未自動化。

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