Site system design reference backdrop
Site system

Site system

A lightweight reference for the typography, layout, and reusable components behind this portfolio. Built for one author, one portfolio, and seven case studies — enough structure to keep the work consistent, but not a universal design system.

Role
Designer + author
Year
2026
Scope
Self-initiated · one portfolio
Surface
Web · Next.js + Tailwind

Overview

This site is built to reduce friction, not to display range. The visual language is restrained so readers can scan and compare seven very different projects quickly. Colour, motion and interaction appear only when they clarify hierarchy, state or evidence.

Seven case studies — healthcare research, urban mobility, enterprise banking, AI assistants — needed to read as one body of work. So typography, spacing and paragraph widths were decided once and used everywhere. Otherwise each new case re-invents its layout, writing one becomes a layout problem instead of a content problem, and the work stops feeling connected.

The four tabs hold the actual decisions: colours, the type ramp, layout measures, components. The system stays secondary to the case content.

  • Reading first — nothing is added just to look impressive.
  • Colour and motion with a purpose — they appear only where they carry information, not as decoration.
  • Built to be scanned — one consistent structure across cases, so comparing them is as easy as reading one.

At a glance

The four tabs above carry the system. Each card below previews what that tab contains — open the corresponding tab to read the live values.

Color
The accent families, the ink emphasis ladder with its contrast floor, and the three places the site allows gradient or shadow.
Aa
Aa Section
Aa Row
Body · 15 / 16 px · 1.7
Typography
Four heading levels with live samples — chapter title, section heading, row heading, note heading — each paired with a canonical prose width.
Layout
Text-width measures, spacing rhythm, page margins, inside spacing, corner softness, and shape language — every spatial rule the site uses.
Components
Twenty-eight components in five groups — page frame, controls, surfaces, content blocks, and case interactives.

How to read this

Each tab focuses on one part of the system. Read top-to-bottom in any tab — every page leads with the canonical values and then explains the role and any exemptions.

  • Color — the palette plus a usage table that fixes what each role does and when a new colour can be added.
  • Typography — the four-heading type scale and which prose width each level pairs with.
  • Layout — the four text-width measures, plus the four patterns that sit deliberately outside the prose scale.
  • Components — the reusable components that compose every case-study page on the site, grouped as frame, controls, surfaces, blocks, and case-specific interactives.

Used in cases

The same system runs underneath every case on this portfolio. Each row below pairs a case with the components it leans on most — a quick map of where the reference is actually doing work.

Older Huawei and CMB cases lean on the structural components (multi-tab body, steps grid, detail block). The RCA cases lean on prose-led components (bridge tables, split, quotes). AI Xiaozhao concentrates the case-specific interactives.

CaseYearSignature components
Human–AI Disagreement in Breast Screening2026Context map · split · steps · bridge tables · quotes
From Underground Heat to Civic Infrastructure2026Full · pair · quoteSplit · points
Passenger Reassurance at Euston2025Steps grid · split · bridge · survey card
AI Xiaozhao — China Merchants Bank2025Multi-tab body · three flow canvases · conversation explorer · context map
Flow — Huawei Cloud2023Multi-tab body · steps grid · detail · bridge
CodeArts — Huawei Cloud2021–2022Three-tab body · bridge table · stats · steps grid
Site system2026Multi-tab body · the four reference visualisations on this page

Scope

This is a content and layout system for one author writing for one portfolio website. It is not a universal design system, and not a token library shipped to other teams. The discipline comes from systems like Material 3 — roles, exemptions, canonical values — because that discipline works at any scale. That reference earned its place in September 2026: when the greys inherited from Apple failed a contrast audit, M3's role definitions were what I checked them against.

The pages that follow are the reference: a colour palette, a type ramp, four layout measures, and a small set of reusable components. Open any tab to see the actual values that govern every case on the site.

One rule was added in September 2026, after I audited the site with Lighthouse: every colour used for text meets WCAG AA. The old grey token sat at 3.3:1 and failed across 64 elements, so it was darkened, `ink/65` became the floor for readable text, and a separate `disabled` grey now carries the cases WCAG exempts. Colour hierarchy here is built from size, weight and case as much as from lightness.