Design a light-mode web interface screen: airy multi-pane studio canvas balancing clean geometric controls with luminous electric blue accents.
LAYOUT
Rigid 3-column architecture anchored by a fixed left icon-and-label rail and a right-side contextual inspector panel. The central scrollable stage isolates the web page preview inside an expansive padded viewport canvas. Top utility header floats seamlessly across all panels with centered device preview toggles.
PALETTE (use these exact hex values)
- #F8FAFC — Canvas Background: Global application viewport and backdrop behind canvas components
- #FFFFFF — Card Surface: Foreground surface for builder canvas, side panels, and content cards
- #1E293B — Midnight Accent: High-contrast selected template card and slider navigation arrow buttons
- #1668E8 — Electric Cobalt: Primary publish actions, active tree selections, and text hyperlinks
- #E2E8F0 — Subtle Border: Hairline 1px dividers between panels, card outlines, and inputs
- #0F172A — Text Heading: Main headlines, active navigation labels, and structural headers
- #64748B — Text Muted: Secondary descriptions, inactive sidebar links, and inspector meta labels
- #10B981 — Status Success: Saved state indicator text and lightning bolt feature icon badge
TYPOGRAPHY
Typeface Plus Jakarta Sans (or Inter, Manrope, DM Sans), weights 400/500/600/700. Sizes 11px caption, 13px body-sm, 14px body, 16px body-lg, 20px subheading, 24px heading, 36px display. Tracking -0.02em at display, 0.05em at uppercase caption. Clean, technical, and approachable modern grotesque. The neutral curves of Plus Jakarta Sans provide crisp readability across dense form controls and bold, confident authority across hero canvas headings.
GEOMETRY & SPACING
Corner radii — cards 16px, links 6px, inputs 8px, buttons 20px. Spacing on a 8px unit, 16px gaps, 64px between sections, 1440px container, comfortable density.
DEPTH
Depth is created almost entirely without heavy drop shadows, relying instead on clean 1px structural strokes (#E2E8F0) and background contrast. Where elevation exists in hero wireframes, it uses multi-stop soft ambient blue-grey glows with 20px+ blur and low 6% opacity.
IMAGERY
Visual assets take the form of abstract low-fidelity UI wireframes and vector illustrations composed of soft gradient blocks, pills, and line art. Realistic photographic assets are avoided in favor of minimalist pastel interface blueprints.
SIGNATURE DETAIL — the thing that makes this design itself
The integrated 4-way box model inspector widget paired with the contrasting Midnight Slate (#1E293B) featured template card within an otherwise luminous white UI canvas.
MUST
- Use 1px borders (#E2E8F0) rather than heavy drop shadows to structure panels and cards.
- Keep section meta labels strictly uppercase, 11px, with 0.05em tracking in muted blue-grey.
- Reserve the vivid cobalt blue (#1668E8) exclusively for active selections and primary execution CTAs.
- Enclose all major canvas cards in smooth 16px corner radii.
AVOID
- Never use dark elevation shadows; depth must feel soft, ambient, and light-flooded.
- Do not colorize body text; stick to #0F172A for headings and #64748B for copy.
- Avoid sharp 0px corners on interactive buttons and preview cards.
- Do not mix multiple competing bright accent colors; stick to cobalt blue and subtle mint green.
OUTPUT
Render as a clean, pixel-crisp UI design at roughly 2656:3104. 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 
