# #1 Direction 97d68879
> light · 214° · Jost / IBM Plex Serif · 6 col
| | |
|---|---|
| hash / ref | `97d6887926672958dcbd4fd0a35e19d85f74f989714c1362771939e39a309069` |
| algorithm / library | hash-design/v2 / `bd20321c36ab` |
| constraints | none |
**This brief is a frozen spec, not a mood board.** Every value comes from the hash: do not swap fonts, colours, the grid or the numbers for ones you prefer. Global bans override everything; if the twist cannot apply literally, apply the nearest literal reading and say so in an HTML comment.
## 映射过程 Mapping trace
| bytes | hex | parameter | rule | → result |
|---|---|---|---|---|
| 0+1 | `97 d6` | hue | 0x97d6 = 38870; 38870/65536 × 360 | **213.52°** |
| 2 | `88` | polarity · paper lightness | 136 ≥ 77 → light; L = 0.90 + 59/178 × 0.085 | **light, L 0.928** |
| 3 | `79` | paper chroma | 121/255 × 0.045 | **0.021** |
| 4 | `26` | accent chroma | 0.07 + 38/255 × 0.16 | **0.094** |
| 5 | `67` | accent2 hue offset | 30 + 103/255 × 300 | **+151.18°** |
| 6 | `29` | display face | 41 mod 98 = 41 | **Jost** |
| 7 | `58` | body face | 88 mod 62 = 26 | **IBM Plex Serif** |
| 8 | `dc` | display case · weight | 220 mod 4 = 0; ⌊220/4⌋ mod 5 | **as-written, 300** |
| 9 | `bd` | display tracking | −0.04 + 189/255 × 0.24 | **0.138em** |
| 10 | `4f` | type scale ratio | 1.067 + 79/255 × 0.551 | **1.238** |
| 11 | `d0` | density | t = 208/255 | **t 0.816: base 14.5px, line-height 1.41, unit 5px** |
| 12 | `a3` | grid columns · gutter | 3 + 163 mod 10; unit × (1 + ⌊163/10⌋ mod 4) | **6 columns, 5px gutter** |
| 13 | `5e` | text block span · start | span 14/15, start 5/15 | **columns 1–6 of 6** |
| 14 | `19` | first-screen height | 45 + 25/255 × 55 | **50%** |
| 15 | `d8` | sections · separator | 3 + 216 mod 6; ⌊216/6⌋ mod 5 | **3 sections, bands** |
| 16 | `5f` | anchor subject · size | 95 mod 8; 25 + ⌊95/8⌋/31 × 75 | **motif, 52%** |
| 17 | `74` | anchor position · rotation | x 4/15; ((7) − 7.5)/7.5 × 8 | **x 0.27, -0.5°** |
| 18 | `f9` | motif shape · size | 249 mod 12; unit × (1 + ⌊249/12⌋ mod 8) | **half-circles, 25px** |
| 19 | `89` | motif placement · angle | 137 mod 4; ⌊137/4⌋ × 180/63 | **dividers, 97°** |
| 20 | `71` | radius · border | RADII[113 mod 8]; ⌊113/8⌋ mod 4; ⌊113/32⌋ mod 4 | **0px radius, 2px dotted border** |
| 21 | `4c` | shadow · texture | 76 & 3; (76 >> 2) & 3; 3 + 4 × 0.6 | **no shadow, dot-screen 5.4%** |
| 22 | `13` | motion property · duration | ⌊19/64⌋; (19 mod 64)/63 × 600 | **opacity, 180ms** |
| 23 | `62` | easing | 98 ≥ 32 → cubic-bezier from bits | **cubic-bezier(0, 0.6, 0.63, 1)** |
| 24 | `77` | voice person · headline form | 119 mod 4; ⌊119/4⌋ mod 6 | **none, two-words** |
| 25 | `19` | sentence length · register | 3 + (25 & 15); (25 >> 4)/15 | **12 words, register 0.07** |
| 26 | `39` | twist target | 57 mod 9 | **footer** |
| 27 | `e3` | twist operation · amount | 227 mod 10; ⌊227/10⌋ | **off-grid, 22** |
| 29 | `30` | CJK display face | 48 mod 14 _(used on Chinese pages)_ | **Noto Sans SC** |
| 30 | `90` | mono face | 144 mod 8 | **Azeret Mono** |
| 28, 31 | `9a 69` | (unused) | recorded, not used | — |
## 内容 Content
**Subject:** Causeway — a music festival on Skerrow Island
Use only these facts. Do not invent numbers, reviews, awards or customers; leave gaps visibly empty.
- Name: Causeway — a one-day music festival on Skerrow Island
- Date: Saturday 19 June 2027
- The island is reached on foot over a 1.2 km tidal causeway
- Causeway open for arrivals 09:40–13:10 and for departures 22:15–01:30 (that day's tide times)
- Nobody crosses outside those windows; the harbour boat is for emergencies only
- Capacity: 900 people
- Tickets: £54 adult, £27 for ages 12–17, free under 12; on sale 1 March 2027
- Two stages: the Boathouse (indoors, 220 people) and the Field (outdoors)
- Field line-up: The Lantern Choir, Mara Quist, Seven Herons, Low Orbit Brass
- Boathouse line-up: Ada Fenwick (solo cello), Tomasz & the Weir, Kelp, Ruth Ono Trio
- The last set ends at 21:45 so everyone reaches the causeway in time
- No single-use plastic on the island: bring a cup, or buy an enamel one for £6
- Food from two island kitchens; cash and card
- Organised by the Skerrow Island Trust, a volunteer charity; profits go to repairing the sea wall
- Fourth year of the festival, first held in 2024
- Wear boots: parts of the causeway are wet sand and seaweed
## 文案语气 Voice
- **Person:** impersonal: no pronouns, facts stated plainly
- **Headlines:** two words at most
- **Sentences:** about 12 words on average (about 24 characters in Chinese)
- **Register:** 0.07 on a 0–1 scale — spoken and casual
## 版式 Layout
- **Grid:** 6 columns, 5px gutters, max width 1370px
- **Text block:** columns 1–6 of 6 (full width)
- **First screen:** 50% of the viewport height
- **Sections:** 3, separated by full-width bands alternating paper and panel
- Below 640px wide the grid collapses to one column; separators and the anchor stay.
**First-screen anchor:** the motif drawn at full scale; about 52% of the first screen's width, centred at 27% from the left edge, rotated -0.5°.
## 字体 Typography
- **Display**: Jost 300/400/500/700/800 · set at 300, as written (sentence case), letter-spacing 0.138em — fallback `Futura, "Century Gothic", sans-serif`
- **Body**: IBM Plex Serif 400 + italic — fallback `Georgia, serif`
- **Mono**: Azeret Mono 400/500/700 — fallback `"Courier New", monospace`
- **CJK** (Chinese pages): display Noto Sans SC, body Noto Serif SC
Scale: ratio **1.238** on a 14.5px base → -2: 9.5px · -1: 11.7px · 0: 14.5px · 1: 18px · 2: 22.2px · 3: 27.5px · 4: 34.1px · 5: 42.2px · 6: 52.2px · 7: 64.6px
```html
```
## 配色 Colour — light, hue 213.52°
Computed in OKLCH: paper L 0.928 / C 0.021 at hue 213.52°; accents at chroma 0.094, accent2 151.18° round the wheel. Text lightness is solved for contrast (ink ≥ 7.5:1, muted ≥ 4.6:1, accents ≥ 3:1 on paper).
| token | hex | role |
|---|---|---|
| paper | `#d8ebf0` | page background |
| ink | `#233d42` | primary text |
| muted | `#5a696d` | secondary text |
| accent | `#248b9f` | the anchor and one kind of mark |
| accent2 | `#b37281` | sparingly, under a tenth of the page |
| rule | `#9bb6bc` | lines, borders |
| panel | `#c4dee4` | secondary background |
Contrast (WCAG):
- ink on paper: **9.39:1** — AAA — any text
- muted on paper: **4.64:1** — AA — body text OK
- ink on panel: **8.21:1** — AAA — any text
- accent on paper: **3.24:1** — large text / UI marks only (≥24px or bold ≥19px)
- accent2 on paper: **3.02:1** — large text / UI marks only (≥24px or bold ≥19px)
- #000000 on accent: **5.27:1** — AA — body text OK
- #000000 on accent2: **5.64:1** — AA — body text OK
## 密度 Density — 0.816
0.816 on the density axis (0 = airiest, 1 = most packed): base 14.5px, line-height 1.41, spacing unit 5px, section gap 57px, max width 1370px.
## 形状与材质 Shape & surface
- **Radius:** 0 — square corners everywhere
- **Borders:** 2px dotted in the rule colour
- **Shadow:** none (never a soft, blurred shadow)
- **Texture:** a fine dot screen (radial-gradient pattern) at 5.4% opacity
```css
body { background-image: radial-gradient(color-mix(in srgb, var(--ink) 5.4%, transparent) 1px, transparent 1.5px); background-size: 6px 6px; }
```
## 母题 Motif
Half circles, each about 25px, between sections, at 97°. Draw them with CSS or inline SVG in the palette colours; no icon fonts, no emoji.
## 动效 Motion
Opacity changes over 180ms with `cubic-bezier(0, 0.6, 0.63, 1)`, on hover, focus and state changes, plus the anchor once on load. Never animate every section on scroll. Under prefers-reduced-motion nothing moves.
## 变数 Twist
Push the footer 2 columns off the grid.
## 全局禁令 Global bans
- **禁用 Inter 及同类默认无衬线** (generic-sans, critical): 不得使用 Inter / Inter Tight / Inter Display / Roboto / Roboto Flex / Open Sans / Lato / Poppins / Montserrat / Nunito / Nunito Sans / Plus Jakarta Sans / Manrope / DM Sans / Outfit / Figtree / Geist / Urbanist / Sora / Lexend / Raleway / Work Sans / Space Grotesk，也不得只写 system-ui / sans-serif 当作"设计选择"。字体必须来自 brief 指定的字体对。
- **禁用紫蓝渐变** (purple-blue-gradient, critical): 禁止紫/靛/蓝系渐变背景、渐变文字（background-clip:text）、模糊彩色光斑（mesh blob / glow orb）。需要渐变时只能用 brief 调色板内的颜色，且必须有材质理由（如油墨叠印、日晒褪色）。
- **禁用居中 hero + 双按钮** (centered-hero-two-buttons, critical): 禁止"居中大标题 + 一行副标题 + 主按钮/幽灵按钮并排"的首屏。首屏结构必须来自 brief 的 layout 与 anchor。
- **禁用三张同款卡片** (identical-cards, major): 禁止 3/4/6 张结构相同的"图标 + 标题 + 两行说明"卡片排成一行。信息分组要用 brief 指定的版式手段（表格、清单、编号条款、价签、标签……），且各项尺寸/权重应有差异。
- **禁用玻璃态** (glassmorphism, major): 禁止 backdrop-filter 毛玻璃、半透明白卡片叠在彩色背景上。
- **禁用 emoji 当图标** (emoji-icons, major): 禁止用 emoji（✨🚀⚡️🎯 等）充当图标、项目符号或装饰；也不要拿通用图标库（Heroicons/Lucide/Feather）当装饰。需要图形时用 brief 母题自绘 SVG 或纯排版符号。
- **禁用空洞营销文案** (buzzword-copy, major): 禁止 unlock / unleash / seamless / seamlessly / supercharge / elevate / empower / revolutionize / revolutionary / effortless 等英文空话，以及 赋能 / 无缝 / 一站式 / 极致体验 / 颠覆 / 引领未来 / 全方位 / 助力 等中文空话。文案只能由用户提供的事实构成，按 brief 的 voice 写。
- **禁用"圆角 + 柔和大阴影"一切** (soft-shadow-rounded, major): 禁止所有块都是 12–24px 圆角加 0 10px 30px 级别的柔和投影。圆角与阴影只能按 brief tokens 使用（--radius、--shadow：硬投影或不用，绝不模糊）。
- **禁止编造事实与社会证明** (invented-facts, critical): 禁止虚构数据条（"10K+ 用户 / 99.9% 可用"）、"Trusted by" logo 墙、带头像的假评价、假奖项。只用 facts 中给出的信息；缺信息就留空位或写明待补。
- **禁用框架默认色板** (tailwind-default-palette, major): 禁止直接用 Tailwind slate/indigo/violet/sky 默认色值（如 #6366f1、#8b5cf6、#0f172a、#3b82f6），禁止"深海军蓝底 + 霓虹强调色"的开发者工具外观（除非 brief 明确如此）。颜色只能来自 brief 调色板。
- **禁用"每段都淡入上浮"** (scroll-fade-everything, minor): 禁止给每个区块都加滚动淡入上浮（AOS / data-aos / IntersectionObserver fade-up）。动效只能按 brief motion 规格，且必须尊重 prefers-reduced-motion。
- **禁用标题上方的胶囊徽标** (pill-badge-sparkle, minor): 禁止在大标题上方放 "New ✨ / Now in beta →" 一类圆角胶囊小标签。
- **禁用占位内容** (placeholder-content, major): 禁止 Lorem ipsum、"Feature One"、通用图库人物照、随机 Unsplash 图。没有真实图片时，用排版、色块、自绘 SVG 或 brief 母题代替。
- **禁用 SaaS 模板分节** (template-sections, minor): 禁止 Hero → Features → Testimonials → Pricing → FAQ → CTA 的固定套路。分节顺序来自 brief layout 的 structure，内容按事实组织。
## tokens.css
```css
/* hash-design hash-design/v2 · 97d68879 */
:root {
--paper: #d8ebf0;
--ink: #233d42;
--muted: #5a696d;
--accent: #248b9f;
--on-accent: #000000;
--accent2: #b37281;
--on-accent2: #000000;
--rule: #9bb6bc;
--panel: #c4dee4;
--font-display: Jost, Futura, "Century Gothic", sans-serif;
--font-body: "IBM Plex Serif", Georgia, serif;
--font-mono: "Azeret Mono", "Courier New", monospace;
--display-weight: 300;
--display-tracking: 0.138em;
--step-n2: 0.591rem; /* 9.5px */
--step-n1: 0.732rem; /* 11.7px */
--step-0: 0.906rem; /* 14.5px */
--step-1: 1.122rem; /* 18px */
--step-2: 1.389rem; /* 22.2px */
--step-3: 1.72rem; /* 27.5px */
--step-4: 2.129rem; /* 34.1px */
--step-5: 2.635rem; /* 42.2px */
--step-6: 3.263rem; /* 52.2px */
--step-7: 4.039rem; /* 64.6px */
--leading: 1.41;
--space-1: 5px;
--space-2: 10px;
--space-3: 15px;
--space-4: 20px;
--space-5: 25px;
--space-6: 30px;
--space-7: 35px;
--space-8: 40px;
--section-gap: 57px;
--max-width: 1370px;
--columns: 6;
--gutter: 5px;
--radius: 0px;
--border: 2px dotted var(--rule);
--shadow: none;
--motion-duration: 180ms;
--motion-easing: cubic-bezier(0, 0.6, 0.63, 1);
}
html { font-size: 90.6%; }
body { background: var(--paper); color: var(--ink); font-family: var(--font-body); line-height: var(--leading); }
@media (prefers-reduced-motion: reduce) {
*, *::before, *::after { animation: none !important; transition: none !important; }
}
```
## 交付前自检 Before you ship
- [ ] Fonts on the page are exactly: Jost / IBM Plex Serif / Azeret Mono
- [ ] Every colour on the page comes from the 7 palette tokens above
- [ ] 6-column grid, text block in columns 1–6 of 6 (full width), first screen built around the motif drawn at full scale
- [ ] Copy uses impersonal: no pronouns, facts stated plainly, headlines are two words at most, only the facts
- [ ] Radius 0px, no shadow, dot-screen texture
- [ ] Twist applied: Push the footer 2 columns off the grid.
- [ ] `critique_page` (or `hash-design critique --brief 97d6887926672958dcbd4fd0a35e19d85f74f989714c1362771939e39a309069`) reports no critical/major findings