Design a light-mode website section: luminous sapphire gradient banners anchored by crisp, structured multi-column white footers.
LAYOUT
The layout is divided into two stacked, floating card blocks within a max-width boundary of roughly 1360px. The top card is a high-impact centered CTA containing badge, headline, copy, and dual action buttons. Below it sits a structural footer segmented into a left newsletter/brand zone and four structured right-hand navigation columns, concluding with an expansive legal row.
PALETTE (use these exact hex values)
- #f8fafc — Canvas Background: Outer canvas background providing low-contrast separation for elevated white cards.
- #ffffff — Card Surface White: Main background for the structured footer card and solid primary button.
- linear-gradient(115deg, #1e40af 0%, #2563eb 45%, #38bdf8 85%, #a5f3fc 100%) — CTA Gradient: Hero CTA background surface evoking intelligence, illumination, and depth.
- #2563eb — Brand Blue: Hexagonal logo mark, newsletter subscribe button, and key brand highlights.
- #0f172a — Text Primary Dark: Logo wordmark, footer section headings, and primary body text.
- #64748b — Text Secondary Slate: Footer navigation links, copyright text, and input placeholders.
- #ffffff — Text Primary Light: Headlines and button labels within the dark gradient CTA card.
- #cbd5e1 — Text Muted Light: Supporting paragraph text inside the illuminated CTA card.
- #e2e8f0 — Border Subtle: Border stroke around email input, ghost button stroke, and divider lines.
TYPOGRAPHY
Typeface Inter (or Plus Jakarta Sans, SF Pro Display, system-ui), weights 400/500/600/700. Sizes 11px caption, 12px body-sm, 14px body, 16px body-lg, 20px subheading, 44px heading. Tracking -0.025em for display, 0.05em for uppercase captions. The typographic tone is authoritative, intelligent, and enterprise-grade. An ultra-clean geometric sans (like Inter or Plus Jakarta Sans) balances tight negative display tracking for punchy headlines with airy letter-spacing on micro-labels, providing an exacting, developer-friendly presence.
GEOMETRY & SPACING
Corner radii — cards 24px, links 4px, inputs 8px, buttons 10px. Spacing on a 4px unit, 20px gaps, 64px between sections, 1360px container, comfortable density.
DEPTH
Elevation is achieved through layered color containment rather than blurred drop shadows. The deep glowing blue CTA card floats boldly against the subtle #f8fafc canvas, while the white footer relies on absolute surface purity and crisp 1px borders (#f1f5f9) to separate from the page ground.
IMAGERY
Abstract geometric vector elements are embedded seamlessly into the CTA background: faint concentric white circular arcs and subtle stippled dot fields. These convey computational precision, network topology, and systemic scale without needing photographic assets.
SIGNATURE DETAIL — the thing that makes this design itself
The floating dual-card architecture: an intense sapphire-cyan gradient banner with faint vector orbital arcs resting right above an independent, pristine white multi-column footer card.
MUST
- Keep the CTA card and footer card as distinct rounded rectangles separated by an 18-24px vertical gap.
- Use uppercase tracking (+0.06em to +0.08em) on all category header tags and pill labels.
- Maintain the light-on-dark contrast inside the banner and crisp dark-on-white contrast in the footer.
- Anchor the headline with a two-tone text gradient or highlight on the core value proposition.
AVOID
- Do not let the CTA banner touch or merge directly into the footer without the card gap.
- Never use dark borders on the banner CTA buttons; use translucent whites or solid fills.
- Avoid heavy drop shadows; depth is established entirely through background contrast and card separation.
- Do not use saturated bright colors for footer links; keep them in refined slate tones (#64748b).
OUTPUT
Render as a clean, pixel-crisp UI design at roughly 1792:1024. 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 
