Design a light-mode mobile app interface screen: tactile precision and soft-pill navigation framed in warm neutral air.
LAYOUT
The interface executes an inverted-pyramid retail hierarchy: utilitarian top header, followed immediately by an immersive edge-curved hero banner (24px radius). Beneath the hero, a 3-part horizontal quick-category rail lets users filter immediately. The core section opens with an asymmetric 'Best Sellers' feed with 'See All' right link, concluding with a persistent full-width promotional callout banner at the footer viewport edge.
PALETTE (use these exact hex values)
- #FFFFFF — Canvas Pure: Main screen background and elevated card surface fills
- #F0F1F3 — Subtle Border: Outlines around category tiles, product cards, and input boundaries
- #111827 — Ink Primary: Brand wordmark, primary titles, product names, and pricing labels
- #8C93A3 — Muted Slate: Secondary counts, subheadings, subtitle metadata, and icon strokes
- #3366FF — Electric Cobalt: Hero primary button, promo card fill, links, and cart badge notification
- #1E242B — Deep Midnight: Background for floating pill tags like 'Bestseller'
- #E9F6F0 — Sage Mist: Background tint circle for men category icon
- #FDF2EB — Peach Blush: Background tint circle for women category icon
- #F0EEFC — Lavender Glow: Background tint circle for new arrivals gift icon
TYPOGRAPHY
Typeface Inter (or SF Pro Text, Plus Jakarta Sans, DM Sans), weights 400/500/600/700. Sizes 11px caption, 12px body-sm, 14px body, 16px body-lg, 18px subheading, 20px heading, 28px display. Tracking -0.02em on headings, 0.05em on tracking caps. The geometric grotesque typography delivers an understated, clinical Scandinavian precision that complements metallic luxury watches. Its low-contrast neutral forms give prominence to product detail without competing for visual attention. For open-source parity, Inter or SF Pro seamlessly preserve this modern industrial sensibility.
GEOMETRY & SPACING
Corner radii — cards 16px, links 4px, inputs 12px, buttons 12px. Spacing on a 4px unit, 12px gaps, 24px between sections, 390px container, comfortable density.
DEPTH
Depth is flattened in favor of architectural borders and clean white planes. The sole vertical dimensionality comes from layered banner photography and subtle contrast between dark product straps and pristine background fills. Shadows are virtually nonexistent, prioritizing border containment.
IMAGERY
Photographs emphasize close-up horological hardware, metallic textures, and genuine wrist-wear context with atmospheric natural lighting. Catalog images are sharp, front-facing packshots isolated cleanly on plain white or light grey canvases with consistent watch hands positioning. Avoid low-resolution renders or heavily stylized saturated lifestyle shoots.
SIGNATURE DETAIL — the thing that makes this design itself
The distinctive pairing of ultra-subtle 1px card outlines with soft, pastel-tinted circular icon badges (#E9F6F0, #FDF2EB, #F0EEFC) directly beneath an immersive, deeply rounded (24px) lifestyle banner. Misuse occurs when replacing these pale pastel icon backdrops with high-contrast solid colors, which instantly destroys the calm luxury balance.
MUST
- Keep product card boundaries crisp with 1px solid #F0F1F3 borders rather than heavy drop shadows.
- Use solid #3366FF exclusively for top-tier calls-to-action, promotional strips, and badges.
- Ensure category icon circles use very low-saturation pastel tints with at least 85% lightness.
- Maintain uniform 16px side gutters across all horizontally aligned module blocks.
AVOID
- Never apply harsh multi-layer dark shadows to standard product cards.
- Do not mix serif display typefaces into this clean modernist Swiss-inspired mobile layout.
- Never use saturated background colors behind category cards—rely strictly on tinted circles.
- Avoid sharp 0px card corners; all surfaces must respect the 16px-24px rounded vocabulary.
OUTPUT
Render as a clean, pixel-crisp UI design at roughly 1280:3840. 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 
