# HarmonyOS Design (HarmonyOSデザイン) — image generation prompt
# IndexStyle No.601 — https://indexstyle.org/styles/harmonyos
# Style descriptors only. This prompt names no artist, studio, brand or work.

Produce four original images in the visual language of HarmonyOS Design, a style from Platform Screen Languages, 2019–.

## What to make

Make the kind of thing this style exists for: recomposing the same information across phones, tablets, vehicles and wearables, or explaining continuity across devices through shared cards, motion and hierarchy. Choose one subject and hold it across all four images.

## What has to be visible

- Large rounded cards grouping information by function
- Wide space on light fields with a few saturated accents
- Arcs, concentric circles and gentle scaling for operation states
- Cards and variable type recomposed to suit device size

Someone who knows this style should be able to point at each of these in the finished image.

## How to build it

- Layout and structure: Group by function; spread cards sideways on wide screens and stack them by importance on small ones
- Type and lettering: Adapt the weight and width of a variable sans to the display and enlarge short headings and numbers
- Material and surface: Start with bright neutrals, reserve diffusion and translucency for the control layer, and keep one accent family
- Colour: #F5F7FA carries the ground, #0A59F7 is the colour the style is remembered by, #172033 holds text and outlines. Read off real works, so treat them as a direction rather than a fixed palette.
- What it should feel like: futurity, intimacy, technique

## What goes wrong

Rounded cards alone are not HarmonyOS. Information priority and action continuity must survive the move between devices.

## Across the four

Keep every cue above present in all four. Vary the framing, the scale and the arrangement so the set shows the range this style covers rather than four versions of one picture.

## Constraints

- Do not imitate, reference or name any specific artist, studio, brand, character or copyrighted work.
- Do not reproduce the composition of an existing work.
- Produce original compositions in the general period language described above.

Full design spec: https://indexstyle.org/styles/harmonyos/design.md