④段整套同步（六节＋ P/S/F/J ＋模板）＋ open-design 移到技能根

一、④段整套同步（用户选候选 A） - 新增 `references/stage-proto-doc/assets/产品文档模板.html`（16 KB／247 行，从备份拷、转 LF）。 - ④段 SKILL.md 换成备份 15:28 那版，并按模板口径改齐： · 「产品文档框架」从「四块＋一附录」改成**六节** —— 页面结构／功能清单／使用场景／操作流程／跨页与界面状态／待确认与偏离；与模板同构，⛔ 不从空白页重写结构。 · 编号从 R/S/F 改成 **P 页面／S 场景／F 功能／J 二级功能**，各自唯一、按展示顺序通排。 · 保留旧版有价值的要求：每项功能补齐做什么／入口在哪／输入边界／异常与恢复；重点功能三处标红；横向流程图每步写清页面／功能／操作／完成判据。 · 完成标准「七节」→「六节」，自查清单同步换掉「需求」那批条目，补模板与配图两条。 · 路径 `designs/<项目>/` → `docs/pm/<项目>/ui/`（2 处）。 · 补回本机那条「每份产出文档开头都要有一张图」的引用（指向主 skill，段内不复述）。 - 主 skill 同步：四段结构表④行、④段沿革、画图小节（④段画页面结构图＋用户路径）。二、open-design 移到技能根（用户选候选 A） - `git mv product-planning/references/stage-delivery/assets/open-design → open-design/`（4178 文件）。 - `.gitignore` 白名单加 `!/open-design/` —— 否则移出去就不再纳入版本控制。 - 引用改 11 处：路径形态 `assets/open-design/...` → `<技能根>/open-design/...`；「随段携带的自带件」改称「同根技能」；「路径怎么找」那条改成自带件（段内相对路径）与同根技能（`<技能根>/<技能名>/`）两类分开写。 - open-design 自己的 ATTRIBUTION.md 两处同步（它现在与 oil-ui-pro 同层）。 - 副作用（有益）：命名闸门读数由 2063 降到 225 —— 此前它把 open-design 里 919 个第三方 md 当成规则一起扫了；现在只扫本包 23 个 md。已确认④段的 H1 与 4a/4b/4c 子步仍在检查范围内。三、验收 - check_naming.py --ws E:/ProgramData/AIProject/contentm_agent ＝通过 225 / 失败 0 / 提示 27。 - 活文件里 `assets/open-design` 残留 0；工作区 CRLF 文件 0。
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+# Design System Inspired by GitHub
+
+> Category: Developer Tools
+> Code-forward platform. Functional density, blue-on-white precision, Primer foundations.
+
+## 1. Visual Theme & Atmosphere
+
+GitHub's surface is engineered, not decorated. Every pixel announces a stance: this is a tool for people who care about diffs, builds, and pull requests. The page background is a clean `#ffffff` (light) or `#0d1117` (dark), with content arranged on dense rectangular panes separated by hairline borders rather than negative space. Information density is the brand — list rows, code lines, repository headers, and notification cards are all packed close together so a power user can scan a hundred items without scrolling.
+
+The signature accents are the **Primer blue** (`#0969da`) for links and primary actions, and **GitHub green** (`#1a7f37`) for merged states, success, and the merge button itself. Both feel slightly muted compared to consumer-product blues and greens — saturated enough to read against the dense gray text, restrained enough to disappear into the background when several appear in one viewport.
+
+Typography uses the **system-ui** stack across the entire product so text renders crisply on every OS, paired with **SFMono / Menlo / Consolas** for code. There is no editorial display font; GitHub's voice is the voice of the system you're already on.
+
+**Key Characteristics:**
+- True white canvas (`#ffffff`) or deep navy-black (`#0d1117`) — no warmth, no tint
+- Hairline gray borders (`#d0d7de`) define every pane and panel
+- Primer blue (`#0969da`) for links/primary; GitHub green (`#1a7f37`) for success/merge
+- system-ui for prose; SFMono for code — no custom typeface
+- Dense list rows with minimal padding; whitespace is rare
+- Octicon iconography at 16px / 24px — single-stroke, geometric, consistent
+- Pill-shaped status badges with strong color semantics
+
+## 2. Color Palette & Roles
+
+### Primary
+- **Canvas Default** (`#ffffff`): Primary page background, light theme.
+- **Canvas Subtle** (`#f6f8fa`): Secondary surface, sidebar, input background, header strip.
+- **Canvas Inset** (`#eaeef2`): Code block background, deep-inset surface.
+- **Fg Default** (`#1f2328`): Primary text, headlines, ink.
+- **Fg Muted** (`#656d76`): Secondary text, captions, file paths.
+
+### Brand Accent
+- **Primer Blue** (`#0969da`): Links, primary CTAs, focus ring base — the universal interactive color.
+- **Primer Blue Hover** (`#0550ae`): Hover/pressed for primary blue.
+- **Accent Subtle** (`#ddf4ff`): Soft blue surface for callouts, info banners.
+
+### Semantic
+- **Success / Merge Green** (`#1a7f37`): Merged PRs, success badges, merge button.
+- **Success Subtle** (`#dafbe1`): Success surface tint.
+- **Open Green** (`#1a7f37`): "Open" issue/PR state.
+- **Closed / Danger Red** (`#cf222e`): Closed PRs, destructive action, validation error.
+- **Danger Subtle** (`#ffebe9`): Error banner surface.
+- **Attention / Warning Yellow** (`#9a6700`): Warning text on amber surface.
+- **Attention Subtle** (`#fff8c5`): Warning banner surface.
+- **Done Purple** (`#8250df`): Merged-and-archived, "done" state, premium badge.
+- **Sponsor Pink** (`#bf3989`): Sponsors heart, GitHub sponsors brand.
+
+### Border & Divider
+- **Border Default** (`#d0d7de`): Standard hairline border, panel outline.
+- **Border Muted** (`#d8dee4`): Inner dividers within a panel.
+- **Border Subtle** (`#eaeef2`): Faint table row dividers.
+
+### Dark Theme
+- **Dark Canvas** (`#0d1117`): Dark page background.
+- **Dark Surface** (`#161b22`): Sidebar, header, secondary surface.
+- **Dark Border** (`#30363d`): Standard dark-mode border.
+- **Dark Fg** (`#e6edf3`): Primary text on dark.
+
+## 3. Typography Rules
+
+### Font Family
+- **Body / UI**: `-apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif`
+- **Code / Mono**: `ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace`
+- **Emoji**: `"Apple Color Emoji", "Segoe UI Emoji"`
+
+### Hierarchy
+
+| Role | Font | Size | Weight | Line Height | Letter Spacing | Notes |
+|------|------|------|--------|-------------|----------------|-------|
+| Display | system-ui | 32px (2rem) | 600 | 1.25 | -0.01em | Repo header, marketing hero |
+| H1 | system-ui | 24px (1.5rem) | 600 | 1.25 | normal | Page heading |
+| H2 | system-ui | 20px (1.25rem) | 600 | 1.25 | normal | Section heading |
+| H3 | system-ui | 16px (1rem) | 600 | 1.25 | normal | Sub-section, panel header |
+| Body | system-ui | 14px (0.875rem) | 400 | 1.5 | normal | Default text size — not 16px |
+| Body Small | system-ui | 12px (0.75rem) | 400 | 1.4 | normal | Captions, file metadata |
+| Code | SFMono | 12px (0.75rem) | 400 | 1.45 | normal | Code blocks, diff |
+| Code Inline | SFMono | 0.85em | 400 | inherit | normal | Inline `code` spans |
+
+### Principles
+- **14px body, not 16px**: GitHub's prose density is its identity. The product reads at 14px to fit more rows in a viewport.
+- **Weight binary**: 400 for everything by default; 600 for headlines and emphasis. No 500, no 700.
+- **System fonts always**: never load a webfont for chrome — text must render instantly on slow connections.
+
+## 4. Component Stylings
+
+### Buttons
+
+**Primary (Green)**
+- Background: `#1f883d`
+- Text: `#ffffff`
+- Border: 1px solid `rgba(31, 35, 40, 0.15)`
+- Padding: 5px 16px
+- Radius: 6px
+- Shadow: `0 1px 0 rgba(31,35,40,0.1)`
+- Hover: background `#1a7f37`
+- Use: "Create repository", "Merge pull request"
+
+**Default**
+- Background: `#f6f8fa`
+- Text: `#1f2328`
+- Border: 1px solid `#d0d7de`
+- Padding: 5px 16px
+- Radius: 6px
+- Hover: background `#f3f4f6`, border `#d0d7de`
+
+**Outline (Blue Link Style)**
+- Background: `#ffffff`
+- Text: `#0969da`
+- Border: 1px solid `#d0d7de`
+- Hover: background `#0969da`, text `#ffffff`
+
+**Danger**
+- Background: `#ffffff`
+- Text: `#cf222e`
+- Border: 1px solid `#d0d7de`
+- Hover: background `#a40e26`, text `#ffffff`, border `#a40e26`
+
+### Cards / Boxes
+- Background: `#ffffff`
+- Border: 1px solid `#d0d7de`
+- Radius: 6px
+- Padding: 16px (header) + 16px (body)
+- Header has a `#f6f8fa` strip with bottom border.
+
+### Inputs
+- Background: `#ffffff`
+- Border: 1px solid `#d0d7de`
+- Radius: 6px
+- Padding: 5px 12px
+- Focus: border `#0969da`, ring `0 0 0 3px rgba(9,105,218,0.3)`
+
+### Status Pills (Issue / PR)
+- **Open**: background `#1a7f37`, text white, padding 4px 10px, radius 9999px.
+- **Closed**: background `#cf222e`, text white.
+- **Merged**: background `#8250df`, text white.
+- **Draft**: background `#6e7781`, text white.
+
+### Labels (Tags on Issues/PRs)
+- Padding: 0 7px
+- Radius: 9999px
+- Font: 12px / 500
+- Background and text are programmatic (label color → text computed for contrast).
+
+## 5. Spacing & Layout
+
+- **Base unit**: 4px. Spacing scale: 4, 8, 12, 16, 24, 32, 40, 48.
+- **Page max-width**: 1280px (`Container-xl`).
+- **Sidebar**: 296px on desktop, collapses below 1012px.
+- **Row padding**: 16px horizontal, 12px vertical (lists are dense by design).
+
+## 6. Motion
+
+- **Duration**: 80ms for hover; 200ms for menu/popover open.
+- **Easing**: `ease-out` for opens, `ease-in` for closes.
+- **Avoided**: page-load animation, parallax, persistent micro-interactions. Things appear; they do not perform.
+
+## 7. Usage Guardrails
+
+- Keep dense lists, bordered boxes, and system typography together; isolated green buttons are not enough to create a GitHub-like product surface.
+- Use green for constructive repository actions, blue for links and focus, and red/purple/gray only for issue, PR, and workflow states.
+- Prefer quiet chrome, explicit borders, and compact spacing over decorative shadows or large marketing-style cards.