Design a light-mode mobile app interface screen: editorial fashion minimalism meets precision technical instrumentation in high-saturation cobalt.
LAYOUT
The vertical hierarchy opens with an edge-to-edge immersive cobalt hero header occupying approximately 45% of the initial viewport. Below the hero boundary, an overlapping white sheet slides up with an aggressive 32px radius, housing an asymmetric two-column modular card. Sections sequence linearly downward, each introduced by a micro-tag dot and distinct graphic diagram.
PALETTE (use these exact hex values)
- #2554eb — Electric Cobalt: Immersive hero background flood, primary CTA surface, and dial branding glyph.
- #ffffff — Pure White: Content card surfaces, hero typography glyphs, and high-contrast circular floating action triggers.
- #f5f7fb — Canvas Muted Gray: Global application canvas underpinning floating modular content cards.
- #151926 — Obsidian Slate: High-contrast headings, dark icon containers, and bold editorial display text.
- #738094 — Cool Graphite: Secondary descriptive paragraph copy, subsection tags, and inactive indicators.
- #f06a65 — Vibrant Coral: Section indicator bullets, YouTube video play triggers, and active node badges.
- #4cd4b0 — Teal Mint: Ideation iconography backgrounds, category dots, and subtle horizontal rule highlights.
TYPOGRAPHY
Typeface Plus Jakarta Sans (or Inter, Manrope, Archivo), weights 400/500/700/800. Sizes 11px caption, 13px body-sm, 15px body, 16px subheading, 24px heading, 32px heading-lg, 96px display. Tracking -0.02em for headings, 0.15em for micro-caps. Plus Jakarta Sans delivers a razor-sharp, modernist, tech-forward architectural voice. Its tight apertures and precise geometry reflect Swiss poster design without becoming sterile. If licensed replacements are needed, Inter or Archivo replicate the geometric discipline and rigid vertical metrics accurately.
GEOMETRY & SPACING
Corner radii — cards 32px, links 999px, inputs 12px, buttons 999px. Spacing on a 8px unit, 16px gaps, 32px between sections, 390px container, comfortable density.
DEPTH
Depth is created entirely through planar layering rather than ambient drop shadows. The pure white content card with 36px top radii overlays the cobalt hero banner directly, creating a hard physical edge. Small floating controls rely on stark tone inversion (pure white circles on deep blue, or obsidian on white) for tactile prominence.
IMAGERY
Photography follows high-contrast, black-and-white fashion editorial standards with studio rim lighting and stark directional shadows. Subjects are posed sculpturally in minimalist attire like structured tailoring. Full-color, casual lifestyle, or outdoor naturalistic photography would completely shatter the high-end atelier tone.
SIGNATURE DETAIL — the thing that makes this design itself
The standout signature is the technical instrument dial centered over a monochrome fashion figure in saturated electric cobalt. This overlay of delicate 1px radial measurement ticks and an oversized bold lettermark turns an otherwise standard mobile hero into a technical fashion art piece. It is commonly misused by making the ticks too heavy or rendering the background image in competing full spectrum color.
MUST
- Anchor section tags with a 6px saturated solid color dot matching the contextual accent.
- Maintain high-fashion black and white portraiture clipped strictly to a 24px corner radius.
- Use uppercase 11px typography with 0.15em letter-spacing for all technical metadata and category names.
- Keep large content cards at 32px to 36px border radius to establish the sheet-layering aesthetic.
AVOID
- Never introduce skeuomorphic gradients or drop shadows; use pure flat color surface contrast.
- Do not use full-color photographic images; photography must remain high-contrast black-and-white.
- Avoid lowering the saturation of the hero cobalt blue (#2554eb).
- Do not set narrative body text in uppercase or tracking wider than 0em.
OUTPUT
Render as a clean, pixel-crisp UI design at roughly 1632:3840. Flat vector rendering, real legible text, no browser chrome, no device mockup frame, no watermark, no lorem ipsum placeholder blocks. 在 DraPub 中尝试 
