先在 2.0 Mini 上用 480p 打草稿，再把效果最好的提示词放到 2.0（4K）或 2.5（时长、参考素材）上重跑。
制作序列时，按顺序写出各个节拍，让 2.5 一镜到底完成；或者在多次生成之间用尾帧衔接首帧。
不要写真实人物、名人、受版权保护的角色或第三方品牌的名字；这违反内容政策，结果也不可靠。
提示词示例
电影感一镜到底（Seedance 2.5）seedance-2.5
One continuous shot: a barista in a small corner cafe at opening time flips the sign to OPEN, walks behind the counter, pulls the first espresso as steam rises, then looks up as the first customer pushes the door open and the morning light floods in. Handheld, warm, 24fps. Sound: door bell, grinder, steam wand, quiet street outside.
A matte ceramic speaker on a walnut shelf; a slow orbit as a warm light sweep crosses the fabric grille, dust motes in the beam, dark background. Premium, minimal, no text. Sound: low room tone and a soft hum as the speaker's light ring turns on.
Vertical video. Whip pan from a blurry grey wall to a bright orange bicycle leaning against a graffiti mural in hard midday sun; the camera settles with a small bounce. Saturated, punchy. Sound: a whoosh, then street ambience.
Studio product film. A pair of matte-black over-ear headphones rests on a slab of wet dark slate. The camera begins on a tight macro of the ear cushion stitching, then pulls back on a slow motorized slider to reveal the full silhouette. A single hard key light from the upper left throws a crisp rim highlight along the headband; soft fill from a large overhead diffuser. Fine mist drifts through the beam. In the final second, a bead of water slides off the cup and lands with a soft, clean drip sound. Sound design: low room tone, subtle hum of the light, the single drip. No text, no logo.
Fashion film, 35mm anamorphic look, rich saturated color. A model in a floor-length emerald-green silk coat stands in a sunlit terracotta courtyard, late-afternoon golden light raking across ochre walls and a cobalt-blue door. A wind machine off-screen lifts the coat in slow waves. The camera orbits a quarter turn at hip height, shallow depth of field, soft warm lens flares. Palette: emerald, gold, terracotta, cobalt. Motion is unhurried; fabric moves in slow motion while the model holds a steady gaze into the lens. Sound: fabric rustle, distant wind, no music.
Cinematic scene. Interior of an overnight train at 2 a.m. A woman in a wool coat rests her forehead against the window; rain streaks the glass and the passing sodium lamps paint moving orange bars across her face. The camera is locked off on the seat opposite, slight handheld drift. Rich color: amber lamp glow against cool teal-blue night outside the window, deep shadows, subtle film grain, warm practical light from a reading lamp above. Halfway through she exhales and closes her eyes. Sound: steady rail rhythm, rain against glass, the lamp buzzing faintly.
Character close-up. An elderly lighthouse keeper with a white beard, weathered ruddy skin and a faded red wool sweater sits in a stone room, a kerosene lamp throwing warm amber light on the table while deep blue dusk fills the small window behind him. Medium close-up, 50mm, camera slowly pushing in. He looks just off lens, half-smiles, and says in a low gravelly voice: "They said the light would never fail. I never asked who they were." Lip movement matches the line. Lamp flicker, wind pressing on the shutters, a slow foghorn far away.
Vertical social ad, bright and punchy. A tall glass of ice sits on a sunlit white marble counter beside a bowl of bright oranges and a sprig of fresh mint, a coral-pink wall behind. Cold brew coffee pours in from above in slow motion, dark ribbons swirling through the ice, then a splash of oat milk clouds the glass from the bottom up. Quick whip-pan to a top-down shot as the milk blooms. High-key daylight, crisp highlights, very shallow focus. Energetic pacing with two fast cuts. Sound: ice cracking, liquid pour, one satisfying clink.
Abstract music visual, vivid color. Drops of magenta, cyan and gold ink fall into clear water inside a glass tank against a deep black backdrop, each color blooming and mixing into violet and teal clouds. Each drop lands on a slow 70 bpm pulse, tendrils unfolding in macro detail. The camera slowly rotates around the tank. Add a faint iridescent shimmer at the edges of the ink. High contrast, saturated, no text. Sound: a deep sub-bass pulse on each drop with soft reverb tails.
