# #3 Direction b924a406

> light · 260° · Homemade Apple / Hanken Grotesk · 6 col

| | |
|---|---|
| hash / ref | `b924a406afcf83926ccff8ce5da78e3572110c1bdf752a9b17b3caeb8ef64f26` |
| algorithm / library | hash-design/v2 / `bd20321c36ab` |
| constraints | none |

**这份 brief 是冻结的执行规格，不是灵感板。** 每个数值都来自哈希：不要替换字体、颜色、栅格或数值，不要"顺手优化"成你习惯的样子。若与全局禁令冲突，以禁令为准；若 twist 无法照字面执行，取最接近字面的做法，并在 HTML 注释里写明。

## 映射过程 Mapping trace

| bytes | hex | parameter | rule | → result |
|---|---|---|---|---|
| 0+1 | `b9 24` | hue | 0xb924 = 47396; 47396/65536 × 360 | **260.35°** |
| 2 | `a4` | polarity · paper lightness | 164 ≥ 77 → light; L = 0.90 + 87/178 × 0.085 | **light, L 0.942** |
| 3 | `06` | paper chroma | 6/255 × 0.045 | **0.001** |
| 4 | `af` | accent chroma | 0.07 + 175/255 × 0.16 | **0.18** |
| 5 | `cf` | accent2 hue offset | 30 + 207/255 × 300 | **+273.53°** |
| 6 | `83` | display face | 131 mod 98 = 33 | **Homemade Apple** |
| 7 | `92` | body face | 146 mod 62 = 22 | **Hanken Grotesk** |
| 8 | `6c` | display case · weight | 108 mod 4 = 0; ⌊108/4⌋ mod 1 | **as-written, 400** |
| 9 | `cf` | display tracking | −0.04 + 207/255 × 0.24 | **0.155em** |
| 10 | `f8` | type scale ratio | 1.067 + 248/255 × 0.551 | **1.603** |
| 11 | `ce` | density | t = 206/255 | **t 0.808: base 15px, line-height 1.41, unit 5px** |
| 12 | `5d` | grid columns · gutter | 3 + 93 mod 10; unit × (1 + ⌊93/10⌋ mod 4) | **6 columns, 10px gutter** |
| 13 | `a7` | text block span · start | span 7/15, start 10/15 | **columns 2–5 of 6** |
| 14 | `8e` | first-screen height | 45 + 142/255 × 55 | **76%** |
| 15 | `35` | sections · separator | 3 + 53 mod 6; ⌊53/6⌋ mod 5 | **8 sections, space** |
| 16 | `72` | anchor subject · size | 114 mod 8; 25 + ⌊114/8⌋/31 × 75 | **initial, 59%** |
| 17 | `11` | anchor position · rotation | x 1/15; ((1) − 7.5)/7.5 × 8 | **x 0.07, -7°** |
| 18 | `0c` | motif shape · size | 12 mod 12; unit × (1 + ⌊12/12⌋ mod 8) | **rules, 10px** |
| 19 | `1b` | motif placement · angle | 27 mod 4; ⌊27/4⌋ × 180/63 | **markers, 17°** |
| 20 | `df` | radius · border | RADII[223 mod 8]; ⌊223/8⌋ mod 4; ⌊223/32⌋ mod 4 | **16px radius, 3px dashed border** |
| 21 | `75` | shadow · texture | 117 & 3; (117 >> 2) & 3; 3 + 7 × 0.6 | **no shadow, grain 7.2%** |
| 22 | `2a` | motion property · duration | ⌊42/64⌋; (42 mod 64)/63 × 600 | **opacity, 400ms** |
| 23 | `9b` | easing | 155 ≥ 32 → cubic-bezier from bits | **cubic-bezier(0.77, 0.8, 0.9, 1)** |
| 24 | `17` | voice person · headline form | 23 mod 4; ⌊23/4⌋ mod 6 | **none, two-words** |
| 25 | `b3` | sentence length · register | 3 + (179 & 15); (179 >> 4)/15 | **6 words, register 0.73** |
| 26 | `ca` | twist target | 202 mod 9 | **section-heads** |
| 27 | `eb` | twist operation · amount | 235 mod 10; ⌊235/10⌋ | **repeat, 23** |
| 29 | `f6` | CJK display face | 246 mod 14 _(used on Chinese pages)_ | **Noto Serif SC** |
| 30 | `4f` | mono face | 79 mod 8 | **Share Tech Mono** |
| 28, 31 | `8e 26` | (unused) | recorded, not used | — |

## 内容 Content

**Subject:** 二号桥单车铺

只能使用以下事实。不得编造数字、评价、奖项或客户；缺少的信息留空或写"待补"。

- 店名：二号桥单车铺（Bridge No.2 Cycle Works）
- 地址：河西路二号桥桥洞下东侧，蓝色卷帘门，门口立着一个旧车轮
- 营业：周三至周日 10:00–20:00；周一、周二休息
- 补胎 ¥15；换内胎 ¥35（含内胎）
- 全车保养 ¥180：清洗传动、调变速和刹车、紧固全车螺丝，约 2 小时
- 手工编轮组 ¥260 起，工期 5 天
- 二手车：每辆都换过链条和刹车皮，保修 90 天
- 公路车 Fitting ¥480，约 90 分钟，需预约
- 店主：陈立平，大家叫他老陈，修车 27 年，以前在自行车厂做装配
- 周四夜骑：每周四 19:30 店门口出发，沿江一圈 24 公里，免费，自带车灯
- 门口气泵免费，24 小时可用
- 预约：电话 0571-5555-0222，或到店登记
- 不卖新车，只修车、卖二手车和零件

## 文案语气 Voice

- **Person:** impersonal: no pronouns, facts stated plainly
- **Headlines:** two words at most
- **Sentences:** about 6 words on average (about 12 characters in Chinese)
- **Register:** 0.73 on a 0–1 scale — formal and exact

## 版式 Layout

- **Grid:** 6 columns, 10px gutters, max width 1370px
- **Text block:** columns 2–5 of 6 (centred)
- **First screen:** 76% of the viewport height
- **Sections:** 8, separated by space only: the section gap, no lines or fills
- Below 640px wide the grid collapses to one column; separators and the anchor stay.

**First-screen anchor:** the initial letter (or first character) of the subject; about 59% of the first screen's width, centred at 7% from the left edge, rotated -7°.

## 字体 Typography

- **Display**: Homemade Apple 400 · set at 400, as written (sentence case), letter-spacing 0.155em — fallback `"Segoe Script", "Brush Script MT", cursive`
- **Body**: Hanken Grotesk 400/500/600 + italic — fallback `Helvetica, Arial, sans-serif`
- **Mono**: Share Tech Mono 400 — fallback `"Courier New", monospace`
- **CJK** (Chinese pages): display Noto Serif SC, body Noto Sans SC

Scale: ratio **1.603** on a 15px base → -2: 5.8px · -1: 9.4px · 0: 15px · 1: 24px · 2: 38.5px · 3: 61.8px · 4: 99px · 5: 158.8px · 6: 254.5px · 7: 408px

```html
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Homemade+Apple&family=Hanken+Grotesk:ital,wght@0,400;0,500;0,600;1,400;1,500;1,600&family=Share+Tech+Mono&family=Noto+Serif+SC:wght@400;700&family=Noto+Sans+SC:wght@400;700&display=swap">
```

## 配色 Colour — light, hue 260.35°

Computed in OKLCH: paper L 0.942 / C 0.001 at hue 260.35°; accents at chroma 0.18, accent2 273.53° 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 | `#ebecec` | page background |
| ink | `#34383f` | primary text |
| muted | `#626975` | secondary text |
| accent | `#3d7eed` | the anchor and one kind of mark |
| accent2 | `#00997e` | sparingly, under a tenth of the page |
| rule | `#b1b5bc` | lines, borders |
| panel | `#dadde3` | secondary background |

Contrast (WCAG):

- ink on paper: **9.95:1** — AAA — any text
- muted on paper: **4.67:1** — AA — body text OK
- ink on panel: **8.65:1** — AAA — any text
- accent on paper: **3.28:1** — large text / UI marks only (≥24px or bold ≥19px)
- accent2 on paper: **3.03:1** — large text / UI marks only (≥24px or bold ≥19px)
- #000000 on accent: **5.41:1** — AA — body text OK
- #000000 on accent2: **5.86:1** — AA — body text OK

## 密度 Density — 0.808

0.808 on the density axis (0 = airiest, 1 = most packed): base 15px, line-height 1.41, spacing unit 5px, section gap 58px, max width 1370px.

## 形状与材质 Shape & surface

- **Radius:** 16px on boxes and inputs
- **Borders:** 3px dashed in the rule colour
- **Shadow:** none (never a soft, blurred shadow)
- **Texture:** fine noise grain over the paper at 7.2% opacity

```css
body { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.07200000000000001'/%3E%3C/svg%3E"); }
```

## 母题 Motif

Hairline rules, each about 10px, as list and heading markers, at 17°. Draw them with CSS or inline SVG in the palette colours; no icon fonts, no emoji.

## 动效 Motion

Opacity changes over 400ms with `cubic-bezier(0.77, 0.8, 0.9, 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

Repeat the section headings 5 times in a row.

## 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 · b924a406 */
:root {
  --paper: #ebecec;
  --ink: #34383f;
  --muted: #626975;
  --accent: #3d7eed;
  --on-accent: #000000;
  --accent2: #00997e;
  --on-accent2: #000000;
  --rule: #b1b5bc;
  --panel: #dadde3;

  --font-display: "Homemade Apple", "Noto Serif SC", "Segoe Script", "Brush Script MT", cursive;
  --font-body: "Hanken Grotesk", "Noto Sans SC", Helvetica, Arial, sans-serif;
  --font-mono: "Share Tech Mono", "Courier New", monospace;
  --display-weight: 400;
  --display-tracking: 0.155em;

  --step-n2: 0.365rem; /* 5.8px */
  --step-n1: 0.585rem; /* 9.4px */
  --step-0: 0.938rem; /* 15px */
  --step-1: 1.503rem; /* 24px */
  --step-2: 2.409rem; /* 38.5px */
  --step-3: 3.862rem; /* 61.8px */
  --step-4: 6.19rem; /* 99px */
  --step-5: 9.923rem; /* 158.8px */
  --step-6: 15.906rem; /* 254.5px */
  --step-7: 25.498rem; /* 408px */
  --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: 58px;
  --max-width: 1370px;
  --columns: 6;
  --gutter: 10px;

  --radius: 16px;
  --border: 3px dashed var(--rule);
  --shadow: none;

  --motion-duration: 400ms;
  --motion-easing: cubic-bezier(0.77, 0.8, 0.9, 1);
}

html { font-size: 93.8%; }
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: Homemade Apple / Hanken Grotesk / Share Tech Mono (+ Noto Serif SC / Noto Sans SC)
- [ ] Every colour on the page comes from the 7 palette tokens above
- [ ] 6-column grid, text block in columns 2–5 of 6 (centred), first screen built around the initial letter (or first character) of the subject
- [ ] Copy uses impersonal: no pronouns, facts stated plainly, headlines are two words at most, only the facts
- [ ] Radius 16px, no shadow, grain texture
- [ ] Twist applied: Repeat the section headings 5 times in a row.
- [ ] `critique_page` (or `hash-design critique --brief b924a406afcf83926ccff8ce5da78e3572110c1bdf752a9b17b3caeb8ef64f26`) reports no critical/major findings