Design a light-mode website section: architectural blueprint software wrapped in warm morning daylight and luminous periwinkle evening mist.
LAYOUT
The header sits at the top with a left-aligned logo, centered navigation links, and a right-aligned pill CTA button. Below, the hero splits into an asymmetric 5:7 two-column composition: the left column stacks the eyebrow badge, two-line headline, description, dual action buttons, and trust metrics. The right column holds a dynamic bento arrangement comprising four portrait persona cards flanking a prominent horizontal blueprint takeoff application window.
PALETTE (use these exact hex values)
- linear-gradient(135deg, #FAF8F5 0%, #F1F3FE 45%, #7B88FA 100%) — Canvas Gradient Glow: ambient full-bleed page background creating light atmosphere
- #FFFFFF — Card Surface: crisp opaque containers for bento cards and UI previews
- #0F172A — Primary Ink: hero headline top line, main brand mark, primary CTA button
- #475467 — Body Slate: subtitles, supporting explanations, and navigation item text
- linear-gradient(90deg, #2563EB 0%, #7C3AED 50%, #BE185D 100%) — Headline Gradient: applied across 'Built for concrete.' title emphasizing innovation
- #E6F7F2 — Badge Tint Teal: background for general contractor category pill
- #0D9488 — Badge Ink Teal: label text for general contractors badge
- #FEECEB — Badge Tint Coral: background for precon and estimators pill
- #E11D48 — Badge Ink Coral: label text for precon and estimators badge
- #E2E8F0 — Card Border: delicate boundary defining white cards and secondary buttons
TYPOGRAPHY
Typeface Plus Jakarta Sans (or Inter, DM Sans, General Sans), weights 400/500/600/700. Sizes 11px caption, 13px body-sm, 15px body, 18px body-lg, 20px subheading, 60px display. Tracking -0.03em at display, 0 at body. The typography is clean, architectural, and razor-sharp, executed in a contemporary geometric neo-grotesk with tight letter tracking. It mirrors the exactness of structural engineering while maintaining modern software polish. If Plus Jakarta Sans is unavailable, Inter or DM Sans provides an equivalent balance of technical clarity and humanist geometry.
GEOMETRY & SPACING
Corner radii — cards 16px, links 999px, inputs 8px, buttons 10px. Spacing on a 4px unit, 16px gaps, 80px between sections, 1360px container, comfortable density.
DEPTH
Depth is communicated through optical layering rather than aggressive drop shadows. The pure white opaque cards (#FFFFFF) and 1px border (#E2E8F0) separate cleanly from the soft, airbrushed periwinkle and lilac canvas gradient beneath them. Extremely subtle, diffused ambient occlusion shadows (less than 4% opacity) are reserved exclusively for the central CAD preview card.
IMAGERY
Photography focuses on authentic concrete construction environments: cast floorplates, rebar lattices, exterior curtain walls, and crane-serviced building frames. Colors in photos are desaturated and architectural to balance against the clean CAD graphics. Any generic stock imagery depicting business handshakes or smiling corporate workers is strictly off-brand.
SIGNATURE DETAIL — the thing that makes this design itself
The design's signature element is the combination of the warm-to-periwinkle glowing backdrop paired with the dual-color hero headline ('AI takeoffs.' in solid slate, 'Built for concrete.' in a vibrant blue-to-violet-to-rose gradient). It communicates both grounded enterprise stability and cutting-edge machine learning. It is commonly misused by applying the gradient to every header or tinting the whole background in heavy saturated violet.
MUST
- Keep the gradient background soft and atmospheric, letting deep periwinkle concentrate only bottom-right.
- Restrict the vibrant linear gradient exclusively to the second line of the hero headline.
- Give all bento preview cards matching 16px border-radii with subtle 1px gray borders.
- Use pastel background tints with matching deep-ink text colors for persona role badges.
AVOID
- Do not apply heavy drop shadows under the white bento cards; rely on clean 1px borders.
- Never turn the entire headline into a gradient; the first sentence must remain solid #0F172A.
- Avoid loud saturated backgrounds for persona category badges; use muted pastels only.
- Do not mix serif or expressive display typography into the technical interface layout.
OUTPUT
Render as a clean, pixel-crisp UI design at roughly 1440:896. 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 
