Design a light-mode web interface screen: calm executive workspace balancing tactile terracotta accents with crisp slate typography and airy card architectures.
LAYOUT
The screen follows a fixed-width left rail sidebar (220px) next to an expansive dashboard grid. The main content begins with an executive title row and action controls, immediately followed by four proportional KPI stat cards. Beneath, the layout splits into a 65/35 two-column arrangement, placing large longitudinal time-series data and tables on the left, counterbalanced by task breakdowns and team lists on the right.
PALETTE (use these exact hex values)
- #F8F9FA — Canvas Ground: Global application page background behind sidebar and cards
- #FFFFFF — Card Surface: Modular content card background and input container surfaces
- #ECEEF2 — Border Subtle: Delicate 1px hairline boundary framing cards and table dividers
- #C84B3E — Brand Terracotta: Primary CTA buttons, brand monogram, negative trends, and urgent deadline markers
- #558965 — Success Moss: Positive metrics, completed task statuses, and primary trend line
- #4B71B5 — Focus Denim: In-progress indicators, secondary charts, and progress bar fills
- #191C21 — Text Primary: Page headings, main metric figures, and primary table row titles
- #717684 — Text Muted: Secondary subtitles, metadata captions, inactive sidebar labels, and table headers
TYPOGRAPHY
Typeface Plus Jakarta Sans (or Inter, SF Pro Display), weights 400/500/600/700. Sizes 11px caption, 12px body-sm, 13px body, 14px body-lg, 16px subheading, 20px heading, 26px display. Tracking -0.01em at display, 0 at body. Plus Jakarta Sans provides a warm yet technical demeanor, balancing clean geometric curves with open apertures that remain crystal clear at dense 11px and 12px sizes. It projects calm operational efficiency without feeling sterile. When substituting, Inter or SF Pro Display faithfully preserves this neutral structural tone.
GEOMETRY & SPACING
Corner radii — cards 16px, links 6px, inputs 8px, buttons 8px. Spacing on a 4px unit, 16px gaps, 24px between sections, 1440px container, comfortable density.
DEPTH
Elevation is achieved through flat juxtaposition rather than drop shadows. Crisp #FFFFFF panels sit directly on top of the #F8F9FA canvas, bounded purely by 1px hairline borders (#ECEEF2). The only depth cue is subtle border contrast and occasional 1-2% opacity ambient contact shadows.
IMAGERY
Imagery is strictly utilitarian, limited to circular 28px photographic team avatars and rounded monochrome 32px project initials. Avatars feature realistic natural-light portraiture, while decorative illustrations or skeuomorphic graphics are entirely avoided.
SIGNATURE DETAIL — the thing that makes this design itself
The signature element is the subtle terracotta-tinted active pill navigation paired with thin sparklines embedded directly into white KPI cards. It elevates standard SaaS enterprise layouts into a tactile, editorial executive cockpit. To use correctly, keep the red tint under 8% opacity in backgrounds and reserve the solid red strictly for key triggers.
MUST
- Wrap all analytical cards with consistent 16px corner radii and 1px #ECEEF2 outlines.
- Use terracotta #C84B3E sparingly for critical actions, active navigation, and warning states.
- Maintain strict 20px interior padding on all card surfaces for visual rhythm.
- Pair sparklines and horizontal progress bars directly with their numeric context.
AVOID
- Do not introduce drop shadows heavier than 0 2px 4px rgba(0,0,0,0.02).
- Avoid using bright saturated greens or blues that overpower the grounded earthy palette.
- Never make status badge corners rectangular; they must stay strictly 999px pills.
- Do not omit muted secondary text under main project names and avatar labels.
OUTPUT
Render as a clean, pixel-crisp UI design at roughly 3520:2336. 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 
