diff --git a/src/components/ArticleSidebar.astro b/src/components/ArticleSidebar.astro
index e281dc8..33ccf2b 100644
--- a/src/components/ArticleSidebar.astro
+++ b/src/components/ArticleSidebar.astro
@@ -1,5 +1,5 @@
 ---
-import type { BlogPost } from '@/lib/posts';
+import { getCategoryHref, type BlogPost } from '@/lib/posts';
 
 type TocItem = {
   depth: number;
@@ -38,7 +38,7 @@ const tocSections = toc.reduce<TocSection[]>((sections, item) => {
     <div class="profile-name">biss</div>
     <div class="article-author-meta">
       <span>{post.dateText}</span>
-      {post.categories[0] && <a href={`/categories/${encodeURIComponent(post.categories[0])}/`}>{post.categories[0]}</a>}
+      {post.categories[0] && <a href={getCategoryHref(post.categories[0])}>{post.categories[0]}</a>}
     </div>
   </section>
 
diff --git a/src/components/PostCard.astro b/src/components/PostCard.astro
index 20ac5a2..3493493 100644
--- a/src/components/PostCard.astro
+++ b/src/components/PostCard.astro
@@ -1,5 +1,5 @@
 ---
-import type { BlogPost } from '@/lib/posts';
+import { getCategoryHref, type BlogPost } from '@/lib/posts';
 
 interface Props {
   post: BlogPost;
@@ -15,7 +15,7 @@ const { post } = Astro.props;
     {post.summary && <p>{post.summary}</p>}
   </a>
   <div class="meta-list">
-    {post.categories.map((category) => <a href={`/categories/${encodeURIComponent(category)}/`}>{category}</a>)}
+    {post.categories.map((category) => <a href={getCategoryHref(category)}>{category}</a>)}
     {post.tags.map((tag) => <a href={`/tags/${encodeURIComponent(tag)}/`}>#{tag}</a>)}
   </div>
 </article>
diff --git a/src/lib/posts.ts b/src/lib/posts.ts
index 29d086d..0e34590 100644
--- a/src/lib/posts.ts
+++ b/src/lib/posts.ts
@@ -16,6 +16,14 @@ export type BlogPost = {
   body: string;
 };
 
+const categorySlugMap: Record<string, string> = {
+  '技术': 'tech',
+  '建站手札': 'site-notes',
+  '学习': 'study',
+  '生活': 'life',
+  '杂谈': 'notes',
+};
+
 function asArray(value: unknown): string[] {
   if (Array.isArray(value)) return value.map(String).filter(Boolean);
   if (typeof value === 'string' && value.trim()) return [value.trim()];
@@ -94,3 +102,22 @@ export async function getAllTags(): Promise<string[]> {
 export async function getAllCategories(): Promise<string[]> {
   return [...new Set((await getAllPosts()).flatMap((post) => post.categories))].sort((a, b) => a.localeCompare(b, 'zh-CN'));
 }
+
+export function getCategorySlug(category: string): string {
+  const mapped = categorySlugMap[category];
+  if (mapped) return mapped;
+
+  const slug = category
+    .trim()
+    .toLowerCase()
+    .normalize('NFKD')
+    .replace(/[\u0300-\u036f]/g, '')
+    .replace(/[^a-z0-9]+/g, '-')
+    .replace(/^-|-$/g, '');
+
+  return slug || 'category';
+}
+
+export function getCategoryHref(category: string): string {
+  return `/categories/${getCategorySlug(category)}/`;
+}
diff --git a/src/pages/categories/[category].astro b/src/pages/categories/[category].astro
index 7e146f1..374e53d 100644
--- a/src/pages/categories/[category].astro
+++ b/src/pages/categories/[category].astro
@@ -2,11 +2,11 @@
 import BaseLayout from '@/layouts/BaseLayout.astro';
 import PageHeaderCard from '@/components/PageHeaderCard.astro';
 import PostCard from '@/components/PostCard.astro';
-import { getAllCategories, getAllPosts } from '@/lib/posts';
+import { getAllCategories, getAllPosts, getCategorySlug } from '@/lib/posts';
 
 export async function getStaticPaths() {
   return (await getAllCategories()).map((category) => ({
-    params: { category },
+    params: { category: getCategorySlug(category) },
     props: { category },
   }));
 }
diff --git a/src/pages/categories/index.astro b/src/pages/categories/index.astro
index f1cdffc..3e8e0ed 100644
--- a/src/pages/categories/index.astro
+++ b/src/pages/categories/index.astro
@@ -1,7 +1,7 @@
 ---
 import BaseLayout from '@/layouts/BaseLayout.astro';
 import PageHeaderCard from '@/components/PageHeaderCard.astro';
-import { getAllCategories, getAllPosts } from '@/lib/posts';
+import { getAllCategories, getAllPosts, getCategoryHref } from '@/lib/posts';
 
 const posts = await getAllPosts();
 const categories = await getAllCategories();
@@ -12,7 +12,7 @@ const categories = await getAllCategories();
     <PageHeaderCard title="分类" subtitle={`共 ${categories.length} 个分类`} />
     <div class="term-grid">
       {categories.map((category) => (
-        <a href={`/categories/${encodeURIComponent(category)}/`}>
+        <a href={getCategoryHref(category)}>
           <span>{category}</span>
           <strong>{posts.filter((post) => post.categories.includes(category)).length}</strong>
         </a>
diff --git a/src/pages/posts/[slug].astro b/src/pages/posts/[slug].astro
index 4e32b07..f8eba9e 100644
--- a/src/pages/posts/[slug].astro
+++ b/src/pages/posts/[slug].astro
@@ -4,7 +4,7 @@ import PostCopyrightCard from '@/components/PostCopyrightCard.astro';
 import TwikooComments from '@/components/TwikooComments.astro';
 import BaseLayout from '@/layouts/BaseLayout.astro';
 import { render } from 'astro:content';
-import { getAllPosts } from '@/lib/posts';
+import { getAllPosts, getCategoryHref } from '@/lib/posts';
 
 export async function getStaticPaths() {
   return (await getAllPosts()).map((post) => ({
@@ -89,13 +89,13 @@ const twikooEnvId = 'https://comment.biss.click';
           {post.cover ? (
             <div class="article-hero-meta" aria-label="文章信息">
               <span>发布于 {post.dateText}</span>
-              {post.categories[0] && <a href={`/categories/${encodeURIComponent(post.categories[0])}/`}>{post.categories[0]}</a>}
+              {post.categories[0] && <a href={getCategoryHref(post.categories[0])}>{post.categories[0]}</a>}
               <span>总字数：{wordCountText}</span>
               <span>阅读时长：{readingMinutes} 分钟</span>
             </div>
           ) : (
             <div class="meta-list">
-              {post.categories.map((category) => <a href={`/categories/${encodeURIComponent(category)}/`}>{category}</a>)}
+              {post.categories.map((category) => <a href={getCategoryHref(category)}>{category}</a>)}
               {post.tags.map((tag) => <a href={`/tags/${encodeURIComponent(tag)}/`}>#{tag}</a>)}
             </div>
           )}