20条AI科幻小说封面提示词
科幻封面常常淹没在自己的硬件里。太空战、杂乱的驾驶舱和布满机械细节的舰体，在Amazon缩略图尺寸下全都会糊成灰蒙蒙的一团；畅销的封面只把一个很小的东西放在一个极其巨大的东西旁边，到此为止。下面的提示词就建立在这一种对比之上，并把画面上三分之一留得安静，留给你的书名。
科幻小说封面如何构图
- 每个画面只做一组尺度对比。小飞船对着巨大的舰体就是一个故事；再加第二个庞然大物，两者都会缩成一团杂乱。
- 太空是免费的地盘。没有哪个类型比科幻更容易得到干净的书名区：把上三分之一留成纯粹的虚空或空旷的天空，文字看起来就是刻意设计的。
- 两种色温，而不是彩虹。蓝绿色阴影加一个琥珀色光源（推进器、舷窗或太阳），有电影质感；彩虹色的星云则像手机壁纸。
- 剪影胜过机械细节。面板线条和天线细节在160像素下就消失了；能留在搜索页上的，是衬着光线的干净轮廓。
- 薄雾就是你的纵深。前景与巨型结构之间的大气层次，比堆砌任何数量的细节都更能表现距离；锐利如刀的渲染会显得扁平。
浩瀚
宇宙尺度是科幻最古老的承诺，而它只能靠对比来兑现：行星环下的一艘小船，无尽舰体前的一架穿梭机。这五条把庞然大物压在画面低处，于是天空，也就是你的书名区，变得无比开阔。
1. Ring Horizon
简短描述（一键进入工作室）A ringed planet rising huge over a calm sea horizon at dusk, one small boat on the dark water, the rings cutting the sky at a shallow angle.在工作室中打开 →
完整提示词（用于其他工具）
A ringed planet rising huge over a calm sea horizon at dusk, its rings crossing the sky at a shallow angle, one small boat on the dark water for scale. No coastline, no city lights. Deep teal water, amber ring-light on the swell, soft haze at the horizon, clean digital matte painting, the upper sky left open and quiet above the rings.2. Orbital Thread
简短描述（一键进入工作室）A space elevator cable rising from a sunlit cloud deck, one tiny climber car ascending, the line thinning to a hair in the empty blue above.在工作室中打开 →
完整提示词（用于其他工具）
A space elevator cable rising from a sunlit cloud deck, a single tiny climber car ascending it, the cable thinning to a hairline as it climbs into empty indigo sky. Faint planetary curvature below, no ground detail. Pale blue and white palette with one warm glint on the car, thin atmospheric haze, hard clean rendering, vast calm sky filling the upper frame.3. Dyson Shard
简短描述（一键进入工作室）A broken fragment of a dyson structure eclipsing the sun, kilometres of dark lattice edged in fire, one tiny ship silhouetted beneath it.在工作室中打开 →
完整提示词（用于其他工具）
A broken fragment of a dyson structure eclipsing the sun, its torn edge a dark lattice kilometres deep rimmed with fire, one tiny ship silhouetted beneath it. The structure fills the lower frame only. Near-black and burning gold palette, hard vacuum light, fine star field, immense scale contrast, deep empty space above.4. The Approach
简短描述（一键进入工作室）A small shuttle drifting toward a hull that fills the whole lower frame like a dark plain, one docking light burning far across the metal.在工作室中打开 →
完整提示词（用于其他工具）
A small shuttle drifting toward a ship so large its hull fills the lower frame like a dark metal plain, one amber docking light burning far across the surface. No visible bow or stern, no escort craft. Charcoal and teal palette with a single warm point, matte worn metal texture, cinematic scale, calm black space above.5. Horizon Ring
简短描述（一键进入工作室）A colossal artificial ring arching from horizon to horizon over an empty desert at dawn, its underside catching the first light.在工作室中打开 →
完整提示词（用于其他工具）
A colossal artificial ring arching from horizon to horizon over an empty desert at dawn, its underside catching the first warm light, rippled sand untouched below. No roads, no ruins, no figures. Cold violet sky warming to gold at the horizon, soft atmospheric haze on the far arc, clean painterly rendering, wide quiet sky inside the ring's curve.信号
外星接触类故事卖的是谜团，而不是怪物。一面对准某一点的碟形天线、海面之下的一束光、规律得有点过头的极光：安静的画面，承诺书会解释封面不肯说明的事。
6. The Dish
简短描述（一键进入工作室）A lone radio telescope on a dark frosted plain, tilted at one exact point among the stars, its bowl catching faint starlight.在工作室中打开 →
完整提示词（用于其他工具）
A lone radio telescope standing on a dark frosted plain at night, tilted at one exact point among the stars, its white bowl catching faint starlight. No buildings, no cables, no figure. Deep blue-black palette with silver highlights, fine film grain, long-exposure stillness, the Milky Way kept low so the upper sky stays dark and calm.7. Sea Light
简短描述（一键进入工作室）A pale geometric light glowing beneath a calm black sea at night, seen from a low cliff, no ships, no moon, the water barely moving.在工作室中打开 →
完整提示词（用于其他工具）
A pale geometric light glowing beneath the surface of a calm black sea at night, seen from a low cliff, its shape too regular to be natural. No ships, no moon, no shoreline detail. Ink-dark water with one cold cyan bloom, glassy long-exposure surface, restrained palette, quiet awe and unease, empty night sky above.8. Cloud Beam
简短描述（一键进入工作室）A thin vertical beam of light descending from a motionless cloud bank into an empty field at dusk, dust rising slowly where it lands.在工作室中打开 →
完整提示词（用于其他工具）
A thin vertical beam of light descending from a motionless cloud bank into an empty field at dusk, dust and chaff rising slowly where it touches the ground. No craft visible, no figures. Slate-blue dusk palette with one cold white line, soft volumetric haze, cinematic stillness, the cloud bank kept low so generous quiet sky remains above.9. Desert Monolith
简短描述（一键进入工作室）A matte black monolith standing in rippled desert sand at first light, its edges machine-perfect, one long shadow reaching toward the camera.在工作室中打开 →
完整提示词（用于其他工具）
A matte black monolith standing in rippled desert sand at first light, its edges machine-perfect against the wind-worn dunes, one long shadow reaching toward the camera. Nothing else in frame. Warm apricot sand against pure light-absorbing black, crisp grain texture, low sun, centred vertical composition, vast empty sky above.10. Wrong Aurora
简短描述（一键进入工作室）An aurora over a snowfield whose bands curve in slow, regular geometry, too ordered to be weather, one dark cabin small below.在工作室中打开 →
完整提示词（用于其他工具）
An aurora over a flat snowfield, its bands curving in slow regular geometry — too ordered and too evenly spaced to be weather — one dark cabin standing small below. No footprints. Teal and violet light on blue-white snow, soft glow, fine grain, the brightest bands kept to the middle of the sky so the top of the frame stays deep and calm.废弃之物
报废的技术里封存着岁月：青苔下的机甲、沙下的殖民飞船。废墟赋予科幻一种干净渲染永远不具备的质感，而单独一具残骸在缩略图尺寸下一眼就能看清。
11. Sand Colony
简短描述（一键进入工作室）A colony ship half buried in dunes, hull split open, sand pouring through the ribs, heat haze blurring the far desert.在工作室中打开 →
完整提示词（用于其他工具）
A colony ship half buried in high dunes, its hull split open and sand pouring through the exposed ribs, heat haze blurring the desert behind it. No survivors, no camps. Bleached amber and bone palette, hard overhead light, wind-scoured metal texture, documentary framing, the wreck kept low under a wide empty sky.12. Moss Titan
简短描述（一键进入工作室）A giant mech kneeling in old-growth forest, overgrown with moss and ferns, one shaft of light falling on its bowed shoulders.在工作室中打开 →
完整提示词（用于其他工具）
A giant mech kneeling in old-growth forest, decades of moss and ferns grown over its shoulders, one shaft of green-gold light falling on the bowed frame. Cockpit dark, no pilot. Deep green palette with a warm light accent, wet bark and rust texture, painterly detail, tall trees framing a calm canopy above.13. Dead Corridor
简短描述（一键进入工作室）A dark space station corridor lit by a single red emergency strip, cables floating loose, dust hanging motionless in zero gravity.在工作室中打开 →
完整提示词（用于其他工具）
A dark space station corridor seen straight on, lit only by a single red emergency strip along the floor, loose cables floating, dust hanging motionless in zero gravity. No bodies, no signage. Near-black palette with one deep red line, worn industrial texture, long perspective, heavy shadow filling the upper frame.14. Rocket Field
简短描述（一键进入工作室）Rusting rockets standing upright in a summer meadow like grain silos, wildflowers at their fins, flat overcast light.在工作室中打开 →
完整提示词（用于其他工具）
A row of rusting rockets standing upright in a summer meadow like abandoned grain silos, wildflowers growing against their fins, paint flaking in long strips. Flat overcast light, no fences, no people. Faded palette of rust, cream and green, documentary stillness, soft grey sky left empty above the nose cones.15. Last Pod
简短描述（一键进入工作室）A dark cryo bay with rows of dead pods and one still glowing faint blue at the far end, frost feathering the glass.在工作室中打开 →
完整提示词（用于其他工具）
A dark cryo bay seen down its central aisle, rows of dead pods on either side and a single pod still glowing faint blue at the far end, frost feathering its glass. No figures visible inside. Cold black-and-cyan palette, one light source, condensation and brushed-metal texture, deep shadow above the pods.孤独的身影
一个渺小的人面对机器或虚空，是这个类型的情感锚点。让人物保持微小、没有面孔：一件太空服、一道剪影、一个孩子的背影，这样每位读者都能走进画面。
16. The Causeway
简短描述（一键进入工作室）A single astronaut walking a long causeway across dark water toward a distant lit structure, suit lamp on, stars low on the horizon.在工作室中打开 →
完整提示词（用于其他工具）
A single astronaut walking a long straight causeway across dark still water toward a distant lit structure, small in the frame, suit lamp casting a short pool of light. No other figures. Deep blue night palette with one warm structure glow, mirror reflections, quiet epic mood, stars kept low so the upper sky stays black and calm.17. Viewport
简短描述（一键进入工作室）A small silhouette standing before a viewport that fills the wall, a gas giant turning slowly outside, the room in darkness.在工作室中打开 →
完整提示词（用于其他工具）
A small human silhouette standing before a viewport that fills the entire wall, a banded gas giant turning slowly outside, the observation room in darkness. No face, no interior detail. Amber and rust planet light against black, soft glow on the floor, immense scale contrast, the planet kept low in the glass so dark space fills the top.18. The Visitor
简短描述（一键进入工作室）A child seen from behind on a suburban lawn at dusk, looking up at a vast ship hovering silent and dark above the street.在工作室中打开 →
完整提示词（用于其他工具）
A child seen from behind standing on a suburban lawn at dusk, looking up at a vast ship hovering silent and unlit above the street, porch lights still on. Face never visible. Warm domestic light below, cold enormous shadow above, cinematic framing, muted twilight palette, the ship's smooth dark underside forming a calm upper frame.19. Helmet Mirror
简短描述（一键进入工作室）A spacesuit helmet in the lower frame, its gold visor reflecting a ringed planet and a thin line of stars, no face behind the glass.在工作室中打开 →
完整提示词（用于其他工具）
A spacesuit helmet occupying the lower half of the frame, its gold mirrored visor reflecting a ringed planet and a thin line of stars, no face visible behind the glass. Suit fabric worn at the seams. Warm gold against deep black, crisp reflective detail, centred composition, black space keeping the upper third calm and empty.20. Launch Watcher
简短描述（一键进入工作室）A lone figure on a dew-wet hillside at dawn watching a single launch trail climb from the horizon, still low, the sky pale and vast.在工作室中打开 →
完整提示词（用于其他工具）
A lone figure standing on a dew-wet hillside at dawn, seen from behind and small in the frame, watching a single bright launch trail climbing from the horizon, still low in the distance. Pale rose and grey dawn palette, soft mist in the valley, film grain, the trail kept near the horizon so the vast upper sky stays empty.为什么上方三分之一要留空
图像模型仍然会把文字画成乱码，所以上面的每条提示词都禁止在画面中出现文字，并让上方三分之一保持干净。书名之后会以真正可编辑的文字排上去，使用所选类型的标题字体；想改一个词、翻译或调整大小，都不必重新生成画面。
用自己的书名试一试
常见问题
这些提示词为什么都写了“无文字”？
图像模型仍然会把文字画成乱码，而且直接嵌入画面的书名既无法编辑、翻译，也无法缩放。这里的每条提示词都禁止画面中出现文字；你的书名随后会作为真正的文字排上去，在工作室里会自动使用科幻类的展示字体。
这些提示词是为哪种AI工具写的？
长版本适用于任何图像模型：Midjourney、DALL·E、Stable Diffusion、Flux。短版本是为PrintReadyCovers的创意简述栏写的，它会替你补上该类型的美术指导和书名留白规则。
带AI封面的科幻小说能在KDP上销售吗？
Amazon允许AI辅助生成的内容，并要求你在出版时声明使用了AI。通过付费商用API生成（本工作室就是这样做的），并在上传前核对KDP现行的内容准则。
如何让封面在缩略图尺寸下依然清晰可读？
用一组尺度对比、两种色温和一道干净的剪影，然后测试一下：把封面缩小到约160像素高，看书名是否依然可读。本站的免费缩略图工具做的就是这件事。