feat(polaris): import bookmarks and refine category scrolling

- 导入 29 条精选公开书签，排除重复与敏感入口
- 将滚动限制在分类页内层卡片区域，并适配窄屏
- 更新数据与页面测试

ts/web/nextjs/polaris/src/app/categories/[categoryId]/page.test.tsx

@@ -1,6 +1,8 @@
 import { render, screen } from "@testing-library/react"
 import { describe, expect, it } from "vitest"
 
+import { getLinksByCategory } from "@/services/links"
+
 import CategoryPage, { dynamicParams, generateStaticParams } from "./page"
 
 describe("CategoryPage", () => {
@@ -18,6 +20,7 @@ describe("CategoryPage", () => {
   })
 
   it("通过 service 组合开发工具分类页", async () => {
+    const links = getLinksByCategory("dev")
     const page = await CategoryPage({
       params: Promise.resolve({ categoryId: "dev" }),
     })
@@ -26,8 +29,8 @@ describe("CategoryPage", () => {
     expect(
       screen.getByRole("heading", { level: 1, name: "开发工具" }),
     ).toBeInTheDocument()
-    expect(screen.getByText("共 8 个")).toBeInTheDocument()
-    expect(container.querySelectorAll(".tool-card")).toHaveLength(8)
+    expect(screen.getByText(`共 ${links.length} 个`)).toBeInTheDocument()
+    expect(container.querySelectorAll(".tool-card")).toHaveLength(links.length)
     expect(screen.getByRole("link", { name: "开发工具" })).toHaveAttribute(
       "aria-current",
       "page",
@@ -35,7 +38,8 @@ describe("CategoryPage", () => {
     expect(screen.queryByRole("searchbox")).not.toBeInTheDocument()
   })
 
-  it("通过同一路由组合空分类页", async () => {
+  it("通过同一路由组合生活服务分类页", async () => {
+    const links = getLinksByCategory("life")
     const page = await CategoryPage({
       params: Promise.resolve({ categoryId: "life" }),
     })
@@ -44,7 +48,7 @@ describe("CategoryPage", () => {
     expect(
       screen.getByRole("heading", { level: 1, name: "生活服务" }),
     ).toBeInTheDocument()
-    expect(screen.getByText("共 0 个")).toBeInTheDocument()
-    expect(screen.getByText("暂无工具")).toBeInTheDocument()
+    expect(screen.getByText(`共 ${links.length} 个`)).toBeInTheDocument()
+    expect(screen.queryByText("暂无工具")).not.toBeInTheDocument()
   })
 })

ts/web/nextjs/polaris/src/app/globals.css

@@ -569,12 +569,16 @@ a {
 }
 
 .category-page {
-  min-height: 100svh;
+  height: 100svh;
   padding: 20px 20px 20px 0;
 }
 
 .category-page__panel {
-  min-height: calc(100svh - 40px);
+  display: flex;
+  height: 100%;
+  min-height: 0;
+  overflow: hidden;
+  flex-direction: column;
   padding: 48px clamp(32px, 4vw, 64px) 56px;
   background: var(--surface-sidebar);
   box-shadow: var(--shadow-panel);
@@ -603,11 +607,35 @@ a {
 }
 
 .category-tools {
+  display: flex;
+  min-height: 0;
+  flex: 1;
+  flex-direction: column;
   margin-top: 36px;
 }
 
+.category-tools__viewport {
+  min-width: 0;
+  min-height: 0;
+  overflow-y: auto;
+  overscroll-behavior-y: contain;
+  flex: 1;
+  padding: 16px;
+  border: 1px solid rgba(255, 255, 255, 0.36);
+  border-radius: 20px;
+  background: rgba(82, 113, 151, 0.09);
+  box-shadow:
+    inset 0 2px 10px rgba(29, 56, 93, 0.07),
+    inset 0 1px 0 rgba(255, 255, 255, 0.22);
+}
+
+.category-tools__viewport:focus-visible {
+  outline-offset: -4px;
+}
+
 .category-section-header {
   display: flex;
+  flex: none;
   align-items: center;
   gap: 12px;
   margin-bottom: 20px;
@@ -705,6 +733,7 @@ a {
 
 .tool-grid {
   display: grid;
+  align-content: start;
   margin: 0;
   padding: 0;
   list-style: none;
@@ -726,6 +755,12 @@ a {
   text-align: center;
 }
 
+.category-tools__viewport > .category-empty-state {
+  height: 100%;
+  min-height: 0;
+  padding-block: 20px;
+}
+
 .category-empty-state > svg {
   width: 36px;
   height: 36px;
@@ -791,7 +826,8 @@ a {
 }
 
 .local-search-results,
-.sidebar__nav {
+.sidebar__nav,
+.category-tools__viewport {
   scrollbar-color: rgba(100, 116, 139, 0.32) transparent;
   scrollbar-width: thin;
 }
@@ -816,6 +852,126 @@ a {
   }
 }
 
+@media (max-width: 999px) {
+  .tool-grid {
+    grid-template-columns: minmax(0, 1fr);
+  }
+}
+
+@media (max-width: 767px) {
+  /* Keep category navigation usable without squeezing the boxed content. */
+  .app-shell:has(.category-page) .sidebar {
+    inset: 12px 12px auto;
+    width: auto;
+    height: 124px;
+  }
+
+  .app-shell:has(.category-page) .sidebar__header,
+  .app-shell:has(.category-page)[data-sidebar-collapsed="true"]
+    .sidebar__header {
+    min-height: 56px;
+    flex-direction: row;
+    padding: 0 12px;
+  }
+
+  .app-shell:has(.category-page) .sidebar__header > button {
+    display: none;
+  }
+
+  .app-shell:has(.category-page) .sidebar__brand {
+    justify-content: flex-start;
+  }
+
+  .app-shell:has(.category-page) .sidebar__nav,
+  .app-shell:has(.category-page)[data-sidebar-collapsed="true"] .sidebar__nav {
+    flex-direction: row;
+    overflow-x: auto;
+    overflow-y: hidden;
+    padding: 8px 12px 12px;
+  }
+
+  .app-shell:has(.category-page) .sidebar__categories {
+    flex: none;
+    flex-direction: row;
+  }
+
+  .app-shell:has(.category-page) .sidebar__nav-item,
+  .app-shell:has(.category-page)[data-sidebar-collapsed="true"]
+    .sidebar__nav-item {
+    width: auto;
+    height: 40px;
+    min-height: 40px;
+    flex: none;
+    justify-content: flex-start;
+    padding-inline: 12px;
+  }
+
+  .app-shell:has(.category-page) .sidebar__site-name.sr-only,
+  .app-shell:has(.category-page) .sidebar__label.sr-only {
+    position: static;
+    width: auto;
+    height: auto;
+    margin: 0;
+    overflow: hidden;
+    clip: auto;
+    white-space: nowrap;
+  }
+
+  .app-shell:has(.category-page) .app-shell__content {
+    margin-left: 0;
+  }
+
+  .category-page {
+    padding: 148px 12px 12px;
+  }
+
+  .category-page__panel {
+    padding: 28px 20px 36px;
+  }
+
+  .category-tools__viewport {
+    padding: 12px;
+  }
+
+  .category-header__title {
+    font-size: 32px;
+  }
+}
+
+/* When the header would leave only a sliver of cards, let the page scroll instead. */
+@media (max-height: 540px), (max-width: 767px) and (max-height: 700px) {
+  .category-page {
+    height: auto;
+    min-height: 100svh;
+  }
+
+  .category-page__panel {
+    height: auto;
+    min-height: calc(100svh - 40px);
+    overflow: visible;
+  }
+
+  .category-tools {
+    flex: none;
+  }
+
+  .category-tools__viewport {
+    overflow: visible;
+    flex: none;
+  }
+
+  .category-tools__viewport > .category-empty-state {
+    height: auto;
+    min-height: 200px;
+  }
+}
+
+@media (max-width: 767px) and (max-height: 700px) {
+  .category-page__panel {
+    min-height: calc(100svh - 160px);
+  }
+}
+
 @media (prefers-reduced-motion: reduce) {
   *,
   *::before,

ts/web/nextjs/polaris/src/data/data.test.ts

@@ -27,9 +27,9 @@ describe("Polaris 静态数据", () => {
     }
   })
 
-  it("包含 16 条合法链接且分类引用均存在", () => {
+  it("包含 45 条合法链接且分类引用均存在", () => {
     const categoryIds = new Set(categories.map(({ id }) => id))
-    expect(links).toHaveLength(16)
+    expect(links).toHaveLength(45)
     expect(hasUniqueValues(links.map(({ id }) => id))).toBe(true)
 
     for (const link of links) {
@@ -86,4 +86,33 @@ describe("Polaris 静态数据", () => {
     expect(Number.isFinite(settings.background.blur)).toBe(true)
     expect(Number.isFinite(settings.background.overlay)).toBe(true)
   })
+
+  describe("导入链接卫生检查", () => {
+    const normalizeUrl = (url: string) => url.replace(/\/+$/, "")
+
+    it("全部链接 URL 唯一（忽略末尾斜杠）", () => {
+      const urls = links.map(({ url }) => normalizeUrl(url))
+      expect(hasUniqueValues(urls)).toBe(true)
+    })
+
+    it("不包含本地或内网地址", () => {
+      for (const link of links) {
+        const { hostname } = new URL(link.url)
+        expect(hostname).toMatch(/^[\w.-]+$/)
+        expect(hostname).not.toBe("localhost")
+        expect(hostname).not.toMatch(/\.(local|lan|internal)$/)
+        expect(hostname).not.toMatch(
+          /^(127\.|10\.|192\.168\.|172\.(1[6-9]|2\d|3[01])\.|169\.254\.|0\.0\.0\.0)/,
+        )
+      }
+    })
+
+    it("不携带查询参数或片段，防止 sid/jumpuin 等会话标识混入", () => {
+      for (const link of links) {
+        const url = new URL(link.url)
+        expect([...url.searchParams.keys()]).toEqual([])
+        expect(url.hash).toBe("")
+      }
+    })
+  })
 })

ts/web/nextjs/polaris/src/data/links.json

@@ -179,5 +179,298 @@
     "pinnedSort": 80,
     "keywords": ["哔哩哔哩", "视频", "动漫", "社区"],
     "sort": 20
+  },
+  {
+    "id": "chatbot-arena",
+    "title": "Chatbot Arena",
+    "description": "大模型匿名对战与排行榜社区",
+    "url": "https://huggingface.co/spaces/lmarena-ai/chatbot-arena",
+    "categoryId": "ai",
+    "pinned": false,
+    "keywords": ["ai", "大模型", "排行榜", "对战"],
+    "sort": 20
+  },
+  {
+    "id": "go-stdlib-zh",
+    "title": "Go 标准库中文文档",
+    "description": "studygolang 维护的标准库中文参考",
+    "url": "https://studygolang.com/pkgdoc",
+    "categoryId": "dev",
+    "pinned": false,
+    "keywords": ["go", "golang", "标准库", "文档"],
+    "sort": 50
+  },
+  {
+    "id": "element-plus",
+    "title": "Element Plus",
+    "description": "Vue 3 组件库与组件总览文档",
+    "url": "https://element-plus.org",
+    "categoryId": "dev",
+    "pinned": false,
+    "keywords": ["vue", "组件库", "ui", "文档"],
+    "sort": 60
+  },
+  {
+    "id": "v-md-editor",
+    "title": "v-md-editor",
+    "description": "Vue Markdown 编辑器中文文档",
+    "url": "https://code-farmer-i.github.io/vue-markdown-editor/zh/",
+    "categoryId": "dev",
+    "pinned": false,
+    "keywords": ["vue", "markdown", "编辑器", "组件"],
+    "sort": 70
+  },
+  {
+    "id": "tsinghua-mirror",
+    "title": "清华镜像站",
+    "description": "清华 TUNA 开源软件镜像仓库",
+    "url": "https://mirrors.tuna.tsinghua.edu.cn",
+    "categoryId": "dev",
+    "pinned": false,
+    "keywords": ["镜像", "开源", "linux", "pypi"],
+    "sort": 100
+  },
+  {
+    "id": "haowallpaper",
+    "title": "哲风壁纸",
+    "description": "高质量免费壁纸下载站",
+    "url": "https://www.haowallpaper.com",
+    "categoryId": "design",
+    "pinned": false,
+    "keywords": ["壁纸", "素材", "背景", "4k"],
+    "sort": 20
+  },
+  {
+    "id": "leetcode",
+    "title": "LeetCode",
+    "description": "算法与数据结构刷题平台",
+    "url": "https://leetcode.cn",
+    "icon": "si:leetcode",
+    "categoryId": "learning",
+    "pinned": false,
+    "keywords": ["算法", "刷题", "面试", "题库"],
+    "sort": 10
+  },
+  {
+    "id": "socpk",
+    "title": "SOCPK",
+    "description": "手机 SoC 性能天梯图与排行",
+    "url": "https://www.socpk.com",
+    "categoryId": "efficiency",
+    "pinned": false,
+    "keywords": ["手机", "芯片", "天梯图", "性能"],
+    "sort": 90
+  },
+  {
+    "id": "wiki-52poke",
+    "title": "神奇宝贝百科",
+    "description": "宝可梦中文资料维基",
+    "url": "https://wiki.52poke.com/wiki/%E4%B8%BB%E9%A1%B5",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["宝可梦", "口袋妖怪", "攻略", "资料"],
+    "sort": 80
+  },
+  {
+    "id": "wiki-52poke-typechart",
+    "title": "宝可梦属性相克表",
+    "description": "宝可梦全属性克制关系速查",
+    "url": "https://wiki.52poke.com/wiki/%E5%B1%9E%E6%80%A7%E7%9B%B8%E5%85%8B%E8%A1%A8",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["宝可梦", "属性", "相克", "速查"],
+    "sort": 90
+  },
+  {
+    "id": "wiki-blhx",
+    "title": "碧蓝航线WIKI",
+    "description": "碧蓝航线官方中文百科",
+    "url": "https://wiki.biligame.com/blhx/%E9%A6%96%E9%A1%B5",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["碧蓝航线", "手游", "攻略", "wiki"],
+    "sort": 100
+  },
+  {
+    "id": "wiki-blhx-boss",
+    "title": "碧蓝航线月度BOSS解析",
+    "description": "大型作战月度 BOSS 攻略解析",
+    "url": "https://wiki.biligame.com/blhx/%E5%A4%A7%E5%9E%8B%E4%BD%9C%E6%88%98%E6%9C%88%E5%BA%A6BOSS%E8%A7%A3%E6%9E%90",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["碧蓝航线", "boss", "攻略", "大型作战"],
+    "sort": 110
+  },
+  {
+    "id": "wiki-fgo",
+    "title": "Mooncell",
+    "description": "FGO 中文维基与攻略资料站",
+    "url": "https://fgo.wiki/w/%E9%A6%96%E9%A1%B5",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["fgo", "mooncell", "从者", "攻略"],
+    "sort": 120
+  },
+  {
+    "id": "wiki-stardew",
+    "title": "星露谷物语中文维基",
+    "description": "星露谷物语官方中文资料维基",
+    "url": "https://zh.stardewvalleywiki.com",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["星露谷物语", "攻略", "作物", "wiki"],
+    "sort": 130
+  },
+  {
+    "id": "wiki-terraria",
+    "title": "泰拉瑞亚中文维基",
+    "description": "泰拉瑞亚官方中文百科",
+    "url": "https://terraria.wiki.gg/zh",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["泰拉瑞亚", "攻略", "物品", "wiki"],
+    "sort": 140
+  },
+  {
+    "id": "wiki-moegirl",
+    "title": "萌娘百科",
+    "description": "ACG 中文百科社区",
+    "url": "https://zh.moegirl.org.cn/zh-hans/Mainpage",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["动漫", "acg", "百科", "二次元"],
+    "sort": 150
+  },
+  {
+    "id": "farmgamehub",
+    "title": "星露谷洒水器规划器",
+    "description": "星露谷物语洒水器布局可视化工具",
+    "url": "https://www.farmgamehub.com/zh/tools/stardew-sprinklers",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["星露谷物语", "洒水器", "布局", "工具"],
+    "sort": 160
+  },
+  {
+    "id": "iodraw",
+    "title": "iodraw",
+    "description": "在线思维导图与白板工具",
+    "url": "https://www.iodraw.com/mind",
+    "categoryId": "design",
+    "pinned": false,
+    "keywords": ["思维导图", "脑图", "白板", "在线"],
+    "sort": 30
+  },
+  {
+    "id": "google-translate",
+    "title": "Google 翻译",
+    "description": "Google 在线机器翻译",
+    "url": "https://translate.google.com",
+    "icon": "si:googletranslate",
+    "categoryId": "efficiency",
+    "pinned": false,
+    "keywords": ["翻译", "翻译器", "英文", "中英"],
+    "sort": 40
+  },
+  {
+    "id": "bing-translate",
+    "title": "微软翻译",
+    "description": "微软必应在线翻译",
+    "url": "https://www.bing.com/translator",
+    "categoryId": "efficiency",
+    "pinned": false,
+    "keywords": ["翻译", "必应", "英文", "中英"],
+    "sort": 50
+  },
+  {
+    "id": "oschina-encrypt",
+    "title": "OSChina 加密解密",
+    "description": "在线加密解密工具集",
+    "url": "https://tool.oschina.net/encrypt",
+    "categoryId": "efficiency",
+    "pinned": false,
+    "keywords": ["加密", "解密", "base64", "工具"],
+    "sort": 60
+  },
+  {
+    "id": "tencent-cloud-console",
+    "title": "腾讯云控制台",
+    "description": "腾讯云服务管理控制台",
+    "url": "https://console.cloud.tencent.com",
+    "categoryId": "efficiency",
+    "pinned": false,
+    "keywords": ["腾讯云", "控制台", "云服务", "服务器"],
+    "sort": 70
+  },
+  {
+    "id": "aliyun-console",
+    "title": "阿里云轻量控制台",
+    "description": "阿里云轻量应用服务器控制台",
+    "url": "https://swas.console.aliyun.com",
+    "categoryId": "efficiency",
+    "pinned": false,
+    "keywords": ["阿里云", "控制台", "轻量服务器", "云服务"],
+    "sort": 80
+  },
+  {
+    "id": "spotify",
+    "title": "Spotify",
+    "description": "在线音乐流媒体播放器",
+    "url": "https://open.spotify.com",
+    "icon": "si:spotify",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["音乐", "播放器", "歌单", "流媒体"],
+    "sort": 30
+  },
+  {
+    "id": "nexusmods",
+    "title": "Nexus Mods",
+    "description": "星露谷等游戏 MOD 下载社区",
+    "url": "https://www.nexusmods.com/games/stardewvalley/mods",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["mod", "游戏", "星露谷物语", "下载"],
+    "sort": 40
+  },
+  {
+    "id": "pokemon-showdown",
+    "title": "Pokemon Showdown",
+    "description": "宝可梦在线对战模拟器",
+    "url": "https://play.pokemonshowdown.com",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["宝可梦", "对战", "游戏", "在线"],
+    "sort": 50
+  },
+  {
+    "id": "expreview",
+    "title": "超能网",
+    "description": "硬件评测与数码资讯媒体",
+    "url": "https://www.expreview.com",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["硬件", "评测", "数码", "装机"],
+    "sort": 60
+  },
+  {
+    "id": "chairo",
+    "title": "Chairo 导航",
+    "description": "二次元 ACG 网站导航",
+    "url": "https://www.chairo.cc",
+    "categoryId": "media",
+    "pinned": false,
+    "keywords": ["导航", "二次元", "acg", "动漫"],
+    "sort": 70
+  },
+  {
+    "id": "amap",
+    "title": "高德地图",
+    "description": "在线地图与出行导航",
+    "url": "https://www.amap.com",
+    "categoryId": "life",
+    "pinned": false,
+    "keywords": ["地图", "导航", "出行", "路线"],
+    "sort": 10
   }
 ]

ts/web/nextjs/polaris/src/features/category/components/category-content.test.tsx

@@ -7,29 +7,39 @@ import { getLinksByCategory } from "@/services/links"
 import { CategoryContent } from "./category-content"
 
 describe("CategoryContent", () => {
-  it("展示开发工具标题、描述、数量和 8 张卡片", () => {
+  it("展示开发工具标题、描述、数量和链接卡片", () => {
     const category = getCategoryById("dev")
     if (!category) throw new Error("测试数据缺少 dev 分类")
+    const links = getLinksByCategory(category.id)
 
     const { container } = render(
-      <CategoryContent
-        category={category}
-        links={getLinksByCategory(category.id)}
-      />,
+      <CategoryContent category={category} links={links} />,
     )
 
     expect(
       screen.getByRole("heading", { level: 1, name: "开发工具" }),
     ).toBeInTheDocument()
     expect(screen.getByText(category.description)).toBeInTheDocument()
-    expect(screen.getByText("共 8 个")).toBeInTheDocument()
-    expect(container.querySelectorAll(".tool-card")).toHaveLength(8)
+    expect(screen.getByText(`共 ${links.length} 个`)).toBeInTheDocument()
+    expect(container.querySelectorAll(".tool-card")).toHaveLength(links.length)
     expect(screen.queryByText("暂无工具")).not.toBeInTheDocument()
 
+    const viewport = screen.getByRole("region", { name: "全部工具" })
+    expect(viewport).toHaveAttribute("tabindex", "0")
+    expect(viewport).toContainElement(
+      screen.getByRole("list", { name: "工具列表" }),
+    )
+    expect(viewport).not.toContainElement(
+      screen.getByText(`共 ${links.length} 个`),
+    )
+    expect(
+      container.querySelector(".category-page__panel"),
+    ).not.toHaveAttribute("tabindex")
+
     const toolLinks = screen
       .getByRole("list", { name: "工具列表" })
       .querySelectorAll("a")
-    expect(toolLinks).toHaveLength(8)
+    expect(toolLinks).toHaveLength(links.length)
     for (const link of toolLinks) {
       expect(link).toHaveAttribute("target", "_blank")
       expect(link).toHaveAttribute("rel", "noopener noreferrer")
@@ -37,19 +47,18 @@ describe("CategoryContent", () => {
   })
 
   it("为空分类展示计数和纯浏览空状态", () => {
+    // life 分类当前已有数据，空状态契约改用空 links 夹具保证始终可测。
     const category = getCategoryById("life")
     if (!category) throw new Error("测试数据缺少 life 分类")
 
-    render(
-      <CategoryContent
-        category={category}
-        links={getLinksByCategory(category.id)}
-      />,
-    )
+    render(<CategoryContent category={category} links={[]} />)
 
     expect(screen.getByText("共 0 个")).toBeInTheDocument()
     expect(screen.getByText("暂无工具")).toBeInTheDocument()
     expect(screen.getByText("这个分类下还没有添加链接。")).toBeInTheDocument()
+    const viewport = screen.getByRole("region", { name: "全部工具" })
+    expect(viewport).toContainElement(screen.getByText("暂无工具"))
+    expect(viewport).not.toHaveAttribute("tabindex")
     expect(screen.queryByRole("button")).not.toBeInTheDocument()
     expect(
       screen.queryByRole("list", { name: "工具列表" }),
@@ -57,24 +66,20 @@ describe("CategoryContent", () => {
   })
 
   it.each([
-    ["ai", 3],
-    ["dev", 8],
-    ["design", 1],
-    ["learning", 0],
-    ["efficiency", 2],
-    ["media", 2],
-    ["life", 0],
-  ] as const)("%s 分类展示正确数量", (categoryId, count) => {
+    "ai",
+    "dev",
+    "design",
+    "learning",
+    "efficiency",
+    "media",
+    "life",
+  ] as const)("%s 分类展示服务提供的数量", (categoryId) => {
     const category = getCategoryById(categoryId)
     if (!category) throw new Error(`测试数据缺少 ${categoryId} 分类`)
+    const links = getLinksByCategory(category.id)
 
-    render(
-      <CategoryContent
-        category={category}
-        links={getLinksByCategory(category.id)}
-      />,
-    )
+    render(<CategoryContent category={category} links={links} />)
 
-    expect(screen.getByText(`共 ${count} 个`)).toBeInTheDocument()
+    expect(screen.getByText(`共 ${links.length} 个`)).toBeInTheDocument()
   })
 })

ts/web/nextjs/polaris/src/features/category/components/category-content.tsx

@@ -15,16 +15,20 @@ export function CategoryContent({ category, links }: CategoryContentProps) {
     <main className="category-page">
       <GlassPanel className="category-page__panel">
         <CategoryHeader category={category} />
-        <section
-          className="category-tools"
-          aria-labelledby="category-tools-title"
-        >
+        <section className="category-tools">
           <CategorySectionHeader count={links.length} />
+          <div
+            className="category-tools__viewport"
+            role="region"
+            aria-labelledby="category-tools-title"
+            tabIndex={links.length > 0 ? 0 : undefined}
+          >
             {links.length > 0 ? (
               <ToolGrid links={links} />
             ) : (
               <CategoryEmptyState />
             )}
+          </div>
         </section>
       </GlassPanel>
     </main>

ts/web/nextjs/polaris/src/services/services.test.ts

@@ -33,14 +33,18 @@ describe("静态数据 service", () => {
     const first = getLinksByCategory("dev")
     const second = getLinksByCategory("dev")
 
-    expect(first).toHaveLength(8)
+    expect(first).toHaveLength(12)
     expect(first.map(({ id }) => id)).toEqual([
       "github",
       "gitee",
       "go",
       "go-zero",
+      "go-stdlib-zh",
+      "element-plus",
+      "v-md-editor",
       "docker",
       "kubernetes",
+      "tsinghua-mirror",
       "npm",
       "pnpm",
     ])
@@ -49,8 +53,10 @@ describe("静态数据 service", () => {
     expect(first[0].keywords).not.toBe(second[0].keywords)
     expect(getLinksByCategory("design").map(({ id }) => id)).toEqual([
       "iconfont",
+      "haowallpaper",
+      "iodraw",
     ])
-    expect(getLinksByCategory("life")).toEqual([])
+    expect(getLinksByCategory("life").map(({ id }) => id)).toEqual(["amap"])
   })
 
   it("按 pinnedSort 返回首页 6 个常用链接", () => {