diff --git a/astro.config.mjs b/astro.config.mjs
index 4155157..bcc68c6 100644
--- a/astro.config.mjs
+++ b/astro.config.mjs
@@ -14,6 +14,7 @@ import { sectionize } from "./src/plugins/satteri/sectionize.mjs"
 import { shiftHeadings } from "./src/plugins/satteri/shift-headings.mjs"
 import { autolinkHeadings } from "./src/plugins/satteri/autolink-headings.mjs"
 import { imageLightbox } from "./src/plugins/satteri/image-lightbox.mjs"
+import { satteriKatex } from "satteri-katex"
 import { site } from "./src/data/site"
 
 export default defineConfig({
@@ -88,6 +89,9 @@ export default defineConfig({
         excerpt,
         shiftHeadings(),
         sectionize(),
+        // KaTeX 必须排在 reading-time / excerpt 之后：它把 math 节点换成 KaTeX 的
+        // HTML，先换的话 ctx.textContent() 会把 KaTeX 标记也算进字数。
+        satteriKatex(),
       ],
       hastPlugins: [
         satteriHeadingIdsPlugin(),
diff --git a/package.json b/package.json
index ffd0597..e3ee76c 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,6 @@
     "reading": "node scripts/fetch-reading.mjs"
   },
   "dependencies": {
-    "@astrojs/markdown-remark": "^7.3.1",
     "@astrojs/markdown-satteri": "^0.4.1",
     "@astrojs/mdx": "^8.0.1",
     "@astrojs/react": "^6.0.6",
@@ -64,7 +63,6 @@
     "date-fns": "4.1.0",
     "embla-carousel-react": "8.5.1",
     "gray-matter": "^4.0.3",
-    "hastscript": "^9.0.1",
     "input-otp": "1.4.1",
     "katex": "^0.16.22",
     "lucide-react": "^0.454.0",
@@ -78,20 +76,12 @@
     "react-resizable-panels": "^2.1.7",
     "reading-time": "^1.5.0",
     "recharts": "2.15.4",
-    "rehype-autolink-headings": "^7.1.0",
-    "rehype-components": "^0.3.0",
-    "rehype-katex": "^7.0.1",
-    "rehype-slug": "^6.0.0",
-    "remark-directive": "^3.0.1",
-    "remark-github-admonitions-to-directives": "^1.0.5",
-    "remark-math": "^6.0.0",
-    "remark-sectionize": "^2.1.0",
     "sanitize-html": "^2.17.0",
     "satteri": "^0.10.5",
+    "satteri-katex": "^0.1.1",
     "sonner": "^1.7.4",
     "tailwind-merge": "^2.5.5",
     "tailwindcss-animate": "^1.0.7",
-    "unist-util-visit": "^5.0.0",
     "vaul": "^1.1.2",
     "zod": "3.25.76"
   },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index ffcd4fe..cc8f726 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -8,9 +8,6 @@ importers:
 
   .:
     dependencies:
-      '@astrojs/markdown-remark':
-        specifier: ^7.3.1
-        version: 7.3.1
       '@astrojs/markdown-satteri':
         specifier: ^0.4.1
         version: 0.4.1
@@ -158,9 +155,6 @@ importers:
       gray-matter:
         specifier: ^4.0.3
         version: 4.0.3
-      hastscript:
-        specifier: ^9.0.1
-        version: 9.0.1
       input-otp:
         specifier: 1.4.1
         version: 1.4.1(react-dom@19.2.0(react@19.2.0))(react@19.2.0)
@@ -200,36 +194,15 @@ importers:
       recharts:
         specifier: 2.15.4
         version: 2.15.4(react-dom@19.2.0(react@19.2.0))(react@19.2.0)
-      rehype-autolink-headings:
-        specifier: ^7.1.0
-        version: 7.1.0
-      rehype-components:
-        specifier: ^0.3.0
-        version: 0.3.0
-      rehype-katex:
-        specifier: ^7.0.1
-        version: 7.0.1
-      rehype-slug:
-        specifier: ^6.0.0
-        version: 6.0.0
-      remark-directive:
-        specifier: ^3.0.1
-        version: 3.0.1
-      remark-github-admonitions-to-directives:
-        specifier: ^1.0.5
-        version: 1.0.5
-      remark-math:
-        specifier: ^6.0.0
-        version: 6.0.0
-      remark-sectionize:
-        specifier: ^2.1.0
-        version: 2.1.0
       sanitize-html:
         specifier: ^2.17.0
         version: 2.17.7
       satteri:
         specifier: ^0.10.5
         version: 0.10.5
+      satteri-katex:
+        specifier: ^0.1.1
+        version: 0.1.1(satteri@0.10.5)
       sonner:
         specifier: ^1.7.4
         version: 1.7.4(react-dom@19.2.0(react@19.2.0))(react@19.2.0)
@@ -239,9 +212,6 @@ importers:
       tailwindcss-animate:
         specifier: ^1.0.7
         version: 1.0.7(tailwindcss@4.3.3)
-      unist-util-visit:
-        specifier: ^5.0.0
-        version: 5.1.0
       vaul:
         specifier: ^1.1.2
         version: 1.1.2(@types/react-dom@19.3.0(@types/react@19.3.0))(@types/react@19.3.0)(react-dom@19.2.0(react@19.2.0))(react@19.2.0)
@@ -3023,9 +2993,6 @@ packages:
   '@types/hast@3.0.5':
     resolution: {integrity: sha512-rp/ezSWaD1m44dPKICGhiskI13nVr7qTloFwDa/IYkhhf5nzwP+zIQcIJh3WIFSBOy/H1PzB40jPjMDksN4F+g==}
 
-  '@types/katex@0.16.7':
-    resolution: {integrity: sha512-HMwFiRujE5PjrgwHQ25+bsLJgowjGjm5Z8FVSf0N6PwgJrwxH0QxzHYDcKsTfV3wva0vzrpqMTJS2jXPr5BMEQ==}
-
   '@types/linkify-it@5.0.0':
     resolution: {integrity: sha512-sVDA58zAw4eWAffKOaQH5/5j3XeayukzDk+ewSsnv3p4yJEZHCCzMDiZM8e0OUrRvmpGZ85jf4yDHkHsgBNr9Q==}
 
@@ -3079,10 +3046,6 @@ packages:
   '@types/unist@3.0.3':
     resolution: {integrity: sha512-ko/gIFJRv177XgZsZcBwnqJN5x/Gien8qNOn0D5bQU/zAzVf9Zt3BlcUiLqhV9y4ARk0GbT3tnUiPNgnTXzc/Q==}
 
-  '@ungap/structured-clone@1.3.0':
-    resolution: {integrity: sha512-WmoN8qaIAo7WTYWbAZuG8PYEhn5fkz7dZrqTBZ7dtt//lL2Gwms1IcnQ5yHqjDfX8Ft5j4YzDM23f87zBfDe9g==}
-    deprecated: Potential CWE-502 - Update to 1.3.1 or higher
-
   '@ungap/structured-clone@1.4.0':
     resolution: {integrity: sha512-1mEZtMKPM09vDmQt5y7YvmN2+DFTP7Tg0EWXdic8/C6VRnpb33e4ghisCIE3WZjsE2N8mf+QV1Zqh7ZFYLWInQ==}
 
@@ -4124,12 +4087,6 @@ packages:
     resolution: {integrity: sha512-T2UbfbBEF32wiepXIsMlTW9+dDYC6wMh/t/vYA4tuOMKqWz/n3vr1NFSxQiyP+zk2mXsoMA/i/7qV6LKut1t1A==}
     engines: {node: '>= 0.4'}
 
-  hast-util-from-dom@5.0.1:
-    resolution: {integrity: sha512-N+LqofjR2zuzTjCPzyDUdSshy4Ma6li7p/c3pA78uTwzFgENbgbUrm2ugwsOdcjI1muO+o6Dgzp9p8WHtn/39Q==}
-
-  hast-util-from-html-isomorphic@2.0.0:
-    resolution: {integrity: sha512-zJfpXq44yff2hmE0XmwEOzdWin5xwH+QIhMLOScpX91e/NSGPsAzNCvLQDIEPyO2TXi+lBmU6hjLIhV8MwP2kw==}
-
   hast-util-from-html@2.0.3:
     resolution: {integrity: sha512-CUSRHXyKjzHov8yKsQjGOElXy/3EKpyX56ELnkHH34vDVw1N1XSQ1ZcAvTyAPtGqLTuKP/uxM+aLkSPqF/EtMw==}
 
@@ -4139,9 +4096,6 @@ packages:
   hast-util-has-property@3.0.0:
     resolution: {integrity: sha512-MNilsvEKLFpV604hwfhVStK0usFY/QmM5zX16bo7EjnAEGofr5YyI37kzopBlZJkHD4t887i+q/C8/tr5Q94cA==}
 
-  hast-util-heading-rank@3.0.0:
-    resolution: {integrity: sha512-EJKb8oMUXVHcWZTDepnr+WNbfnXKFNf9duMesmr4S8SXTJBJ9M4Yok08pu9vxdJwdlGRhVumk9mEhkEvKGifwA==}
-
   hast-util-is-element@3.0.0:
     resolution: {integrity: sha512-Val9mnv2IWpLbNPqc/pUem+a7Ipj2aHacCwgNfTiK0vJKl0LF+4Ba4+v1oPHFpf3bLYmreq0/l3Gud9S5OH42g==}
 
@@ -4700,15 +4654,9 @@ packages:
   mdast-util-definitions@6.0.0:
     resolution: {integrity: sha512-scTllyX6pnYNZH/AIp/0ePz6s4cZtARxImwoPJ7kS42n+MnVsI4XbnG6d4ibehRIldYMWM2LD7ImQblVhUejVQ==}
 
-  mdast-util-directive@3.1.0:
-    resolution: {integrity: sha512-I3fNFt+DHmpWCYAT7quoM6lHf9wuqtI+oCOfvILnoicNIqjh5E3dEJWiXuYME2gNe8vl1iMQwyUHa7bgFmak6Q==}
-
   mdast-util-find-and-replace@3.0.2:
     resolution: {integrity: sha512-Tmd1Vg/m3Xz43afeNxDIhWRtFZgM2VLyaf4vSTYwudTyeuTneoL3qtWMA5jeLyz/O1vDJmmV4QuScFCA2tBPwg==}
 
-  mdast-util-from-markdown@2.0.2:
-    resolution: {integrity: sha512-uZhTV/8NBuw0WHkPTrCqDOl0zVe1BIng5ZtHoDk49ME1qqcjYmmLmOf0gELgcRMxN4w2iuIeVso5/6QymSrgmA==}
-
   mdast-util-from-markdown@2.0.3:
     resolution: {integrity: sha512-W4mAWTvSlKvf8L6J+VN9yLSqQ9AOAAvHuoDAmPkz4dHf553m5gVj2ejadHJhoJmcmxEnOv6Pa8XJhpxE93kb8Q==}
 
@@ -4730,9 +4678,6 @@ packages:
   mdast-util-gfm@3.1.0:
     resolution: {integrity: sha512-0ulfdQOM3ysHhCJ1p06l0b0VKlhU0wuQs3thxZQagjcjPrlFRqY215uZGHHJan9GEAXd9MbfPjFJz+qMkVR6zQ==}
 
-  mdast-util-math@3.0.0:
-    resolution: {integrity: sha512-Tl9GBNeG/AhJnQM221bJR2HPvLOSnLE/T9cJI9tlc6zwQk2nPk/4f0cHkOdEixQPC/j8UtKDdITswvLAy1OZ1w==}
-
   mdast-util-mdx-expression@2.0.1:
     resolution: {integrity: sha512-J6f+9hUp+ldTZqKRSg7Vw5V6MqjATc+3E4gf3CFNcuZNWD8XdyI6zQ8GqH7f8169MM6P7hMBRDVGnn7oHB9kXQ==}
 
@@ -4779,9 +4724,6 @@ packages:
   micromark-core-commonmark@2.0.3:
     resolution: {integrity: sha512-RDBrHEMSxVFLg6xvnXmb1Ayr2WzLAWjeSATAoxwKYJV94TeNavgoIdA0a9ytzDSVzBy2YKFK+emCPOEibLeCrg==}
 
-  micromark-extension-directive@3.0.2:
-    resolution: {integrity: sha512-wjcXHgk+PPdmvR58Le9d7zQYWy+vKEU9Se44p2CrCDPiLr2FMyiT4Fyb5UFKFC66wGB3kPlgD7q3TnoqPS7SZA==}
-
   micromark-extension-gfm-autolink-literal@2.1.0:
     resolution: {integrity: sha512-oOg7knzhicgQ3t4QCjCWgTmfNhvQbDDnJeVu9v81r7NltNCVmhPy1fJRX27pISafdjL+SVc4d3l48Gb6pbRypw==}
 
@@ -4803,9 +4745,6 @@ packages:
   micromark-extension-gfm@3.0.0:
     resolution: {integrity: sha512-vsKArQsicm7t0z2GugkCKtZehqUm31oeGBV/KVSorWSy8ZlNAv7ytjFhvaryUiCUJYqs+NoE6AFhpQvBTM6Q4w==}
 
-  micromark-extension-math@3.1.0:
-    resolution: {integrity: sha512-lvEqd+fHjATVs+2v/8kg9i5Q0AP2k85H0WUOwpIVvUML8BapsMvh1XAogmQjOCsLpoKRCVQqEkQBB3NhVBcsOg==}
-
   micromark-extension-mdx-expression@3.0.1:
     resolution: {integrity: sha512-dD/ADLJ1AeMvSAKBwO22zG22N4ybhe7kFIZ3LsDI0GlsNr2A3KYxb0LdC1u5rj4Nw+CHKY0RVdnHX8vj8ejm4Q==}
 
@@ -5552,42 +5491,21 @@ packages:
     resolution: {integrity: sha512-NgRBy2Nx/bE+9F27nVHnqcN5HjyLmecqsqx2PJHu3/IEtADD4WuxuXIVExD5PoSDFVrl78dOonfcOe5O+5nbzQ==}
     hasBin: true
 
-  rehype-autolink-headings@7.1.0:
-    resolution: {integrity: sha512-rItO/pSdvnvsP4QRB1pmPiNHUskikqtPojZKJPPPAVx9Hj8i8TwMBhofrrAYRhYOOBZH9tgmG5lPqDLuIWPWmw==}
-
-  rehype-components@0.3.0:
-    resolution: {integrity: sha512-yl2bUkZi+sU0gxwVCun7IkjiDLPczSs1SKMKHmjlSLkk4mMryBd/aYba5J8suhJdquBEKSw6ZNxU3MvVQ9xqoQ==}
-
   rehype-expressive-code@0.44.2:
     resolution: {integrity: sha512-jvjQpsfWKBquDrEl5YQA3CJybRRIuDOYsui1BJTs5oKDUK8pPkJSSxY8FjxNlIFIdtgrTjC1zuahuY4Cc1j9SQ==}
 
-  rehype-katex@7.0.1:
-    resolution: {integrity: sha512-OiM2wrZ/wuhKkigASodFoo8wimG3H12LWQaH8qSPVJn9apWKFSH3YOCtbKpBorTVw/eI7cuT21XBbvwEswbIOA==}
-
   rehype-raw@7.0.0:
     resolution: {integrity: sha512-/aE8hCfKlQeA8LmyeyQvQF3eBiLRGNlfBJEvWH7ivp9sBqs7TNqBL5X3v157rM4IFETqDnIOO+z5M/biZbo9Ww==}
 
   rehype-recma@1.0.0:
     resolution: {integrity: sha512-lqA4rGUf1JmacCNWWZx0Wv1dHqMwxzsDWYMTowuplHF3xH0N/MmrZ/G3BDZnzAkRmxDadujCjaKM2hqYdCBOGw==}
 
-  rehype-slug@6.0.0:
-    resolution: {integrity: sha512-lWyvf/jwu+oS5+hL5eClVd3hNdmwM1kAC0BUvEGD19pajQMIzcNUd/k9GsfQ+FfECvX+JE+e9/btsKH0EjJT6A==}
-
   rehype-stringify@10.0.1:
     resolution: {integrity: sha512-k9ecfXHmIPuFVI61B9DeLPN0qFHfawM6RsuX48hoqlaKSF61RskNjSm1lI8PhBEM0MRdLxVVm4WmTqJQccH9mA==}
 
-  remark-directive@3.0.1:
-    resolution: {integrity: sha512-gwglrEQEZcZYgVyG1tQuA+h58EZfq5CSULw7J90AFuCTyib1thgHPoqQ+h9iFvU6R+vnZ5oNFQR5QKgGpk741A==}
-
   remark-gfm@4.0.1:
     resolution: {integrity: sha512-1quofZ2RQ9EWdeN34S79+KExV1764+wCUGop5CPL1WGdD0ocPpu91lzPGbwWMECpEpd42kJGQwzRfyov9j4yNg==}
 
-  remark-github-admonitions-to-directives@1.0.5:
-    resolution: {integrity: sha512-MSRzDs51HGbUrHJ0es8POuxwJiUycWw4aYCTN2RZhdOm5UvyqdB8ApWoGBj9QAiPSHKw2HWl1hd5rRzWxVfNew==}
-
-  remark-math@6.0.0:
-    resolution: {integrity: sha512-MMqgnP74Igy+S3WwnhQ7kqGlEerTETXMvJhrUzDikVZ2/uogJCb+WHUg97hK9/jcfc0dkD73s3LN8zU49cTEtA==}
-
   remark-mdx@3.1.1:
     resolution: {integrity: sha512-Pjj2IYlUY3+D8x00UJsIOg5BEvfMyeI+2uLPn9VO9Wg4MEtN/VTIq2NEJQfde9PnX15KgtHyl9S0BcTnWrIuWg==}
 
@@ -5597,9 +5515,6 @@ packages:
   remark-rehype@11.1.2:
     resolution: {integrity: sha512-Dh7l57ianaEoIpzbp0PC9UKAdCSVklD8E5Rpw7ETfbTl3FqcOOgq5q2LVDhgGCkaBv7p24JXikPdvhhmHvKMsw==}
 
-  remark-sectionize@2.1.0:
-    resolution: {integrity: sha512-R/pHt1RLYrEqrbwOVXx8HnvvwOg+mxg8pE4kIWpIYE3/CuZhU8/PAx/0y1BbHWUA0jmTLTeWpUlDrS/B0pyd0g==}
-
   remark-smartypants@3.0.3:
     resolution: {integrity: sha512-gCaK+ndZ0hYezlqFegHFCVh2CQemsi0Npdh1qVM9bxlUFknjkbP6VmojWhddOCrbK0PbbacmYLWfTULRiT1eWA==}
     engines: {node: '>=16.0.0'}
@@ -5722,6 +5637,12 @@ packages:
     resolution: {integrity: sha512-PGtEkc9cbnedU3s9TmzDbpsZ8w086g/0Q8k8/oIO1NLNU3i5k9yn835CrjJSajp1KMmkisbO1qPXxNKO3welAg==}
     engines: {node: '>=22.12.0'}
 
+  satteri-katex@0.1.1:
+    resolution: {integrity: sha512-65M00JZKW145vEhvCFWCe0Gd57hzL8KEDQHbJ9ZvuH4FGrgh90KUPxqS8GCnIEC5EIhOfWPP7NbEnBfFn+nf3w==}
+    engines: {node: '>=20'}
+    peerDependencies:
+      satteri: ^0.9.5
+
   satteri@0.10.5:
     resolution: {integrity: sha512-Ao1LKpAEa9Wdg0otgbVKViZHEq9ebdXe4DMrp3s9vQAU0HNIuHnFEuMuOcm0ZIXyV0Yzxj91NvhLpvXZJO/5ZQ==}
 
@@ -6099,15 +6020,9 @@ packages:
   unifont@0.7.5:
     resolution: {integrity: sha512-ULe/Cs+ZIsq+dcFofNkhqielCrUJnb5mr+Yc4EBM2VlL+6OZR6+cjtI2mT1bJvRBrVncqHAbLURxmPLcCXzWMg==}
 
-  unist-util-find-after@4.0.1:
-    resolution: {integrity: sha512-QO/PuPMm2ERxC6vFXEPtmAutOopy5PknD+Oq64gGwxKtk4xwo9Z97t9Av1obPmGU0IyTa6EKYUfTrK2QJS3Ozw==}
-
   unist-util-find-after@5.0.0:
     resolution: {integrity: sha512-amQa0Ep2m6hE2g72AugUItjbuM8X8cGQnFoHk0pGfrFeT9GZhzN5SW8nRsiGKK7Aif4CrACPENkA6P/Lw6fHGQ==}
 
-  unist-util-is@5.2.1:
-    resolution: {integrity: sha512-u9njyyfEh43npf1M+yGKDGVPbY/JWEemg5nH05ncKPfi+kBbKBJoTdsogMu33uhytuLlv9y0O7GH7fEdwLdLQw==}
-
   unist-util-is@6.0.1:
     resolution: {integrity: sha512-LsiILbtBETkDz8I9p1dQ0uyRUWuaQzd/cuEeS1hoRSyW5E5XGmTzlwY1OrNzzakGowI9Dr/I8HVaw4hTtnxy8g==}
 
@@ -6129,15 +6044,9 @@ packages:
   unist-util-visit-children@3.0.0:
     resolution: {integrity: sha512-RgmdTfSBOg04sdPcpTSD1jzoNBjt9a80/ZCzp5cI9n1qPzLZWF9YdvWGN2zmTumP1HWhXKdUWexjy/Wy/lJ7tA==}
 
-  unist-util-visit-parents@5.1.3:
-    resolution: {integrity: sha512-x6+y8g7wWMyQhL1iZfhIPhDAs7Xwbn9nRosDXl7qoPTSCy0yNxnKc+hWokFifWQIDGi154rdUqKvbCa4+1kLhg==}
-
   unist-util-visit-parents@6.0.2:
     resolution: {integrity: sha512-goh1s1TBrqSqukSc8wrjwWhL0hiJxgA8m4kFxGlQ+8FYQ3C/m11FcTs4YYem7V664AhHVvgoQLk890Ssdsr2IQ==}
 
-  unist-util-visit@4.1.2:
-    resolution: {integrity: sha512-MSd8OUGISqHdVvfY9TPhyK2VdUrPgxkUtWSuMHF6XAAFuL4LokseigBnZtPnJMu+FbynTkFNnFlyjxpVKujMRg==}
-
   unist-util-visit@5.1.0:
     resolution: {integrity: sha512-m+vIdyeCOpdr/QeQCu2EzxX/ohgS8KbnPDgFni4dQsfSCtpz8UqDyY5GjRru8PDKuYn7Fq19j1CQ+nJSsGKOzg==}
 
@@ -6649,6 +6558,7 @@ snapshots:
       vfile: 6.0.3
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   '@astrojs/markdown-satteri@0.4.1':
     dependencies:
@@ -8332,6 +8242,7 @@ snapshots:
       vfile: 6.0.3
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   '@napi-rs/wasm-runtime@1.2.4(@emnapi/core@1.11.1)(@emnapi/runtime@1.11.1)':
     dependencies:
@@ -9826,6 +9737,7 @@ snapshots:
   '@types/debug@4.1.13':
     dependencies:
       '@types/ms': 2.1.0
+    optional: true
 
   '@types/estree-jsx@1.0.5':
     dependencies:
@@ -9843,8 +9755,6 @@ snapshots:
     dependencies:
       '@types/unist': 3.0.3
 
-  '@types/katex@0.16.7': {}
-
   '@types/linkify-it@5.0.0': {}
 
   '@types/markdown-it@14.2.0':
@@ -9858,9 +9768,11 @@ snapshots:
 
   '@types/mdurl@2.0.0': {}
 
-  '@types/mdx@2.0.14': {}
+  '@types/mdx@2.0.14':
+    optional: true
 
-  '@types/ms@2.1.0': {}
+  '@types/ms@2.1.0':
+    optional: true
 
   '@types/nlcst@2.0.3':
     dependencies:
@@ -9896,12 +9808,11 @@ snapshots:
     dependencies:
       '@types/node': 22.19.2
 
-  '@types/unist@2.0.11': {}
+  '@types/unist@2.0.11':
+    optional: true
 
   '@types/unist@3.0.3': {}
 
-  '@ungap/structured-clone@1.3.0': {}
-
   '@ungap/structured-clone@1.4.0': {}
 
   '@vitejs/plugin-react@5.2.0(vite@8.3.0(@types/node@22.19.2)(esbuild@0.28.2)(jiti@2.7.0)(terser@5.51.2)(yaml@2.9.1))':
@@ -9969,6 +9880,7 @@ snapshots:
   acorn-jsx@5.3.2(acorn@8.16.0):
     dependencies:
       acorn: 8.16.0
+    optional: true
 
   acorn@8.16.0: {}
 
@@ -10029,7 +9941,8 @@ snapshots:
       call-bound: 1.0.4
       is-array-buffer: 3.0.5
 
-  array-iterate@2.0.1: {}
+  array-iterate@2.0.1:
+    optional: true
 
   arraybuffer.prototype.slice@1.0.4:
     dependencies:
@@ -10041,7 +9954,8 @@ snapshots:
       get-intrinsic: 1.3.0
       is-array-buffer: 3.0.5
 
-  astring@1.9.0: {}
+  astring@1.9.0:
+    optional: true
 
   astro-expressive-code@0.44.2(astro@7.3.3(@astrojs/markdown-remark@7.3.1)(@emnapi/core@1.11.1)(@emnapi/runtime@1.11.3)(@types/node@22.19.2)(jiti@2.7.0)(terser@5.51.2)(yaml@2.9.1)):
     dependencies:
@@ -10291,9 +10205,11 @@ snapshots:
 
   character-entities-legacy@3.0.0: {}
 
-  character-entities@2.0.2: {}
+  character-entities@2.0.2:
+    optional: true
 
-  character-reference-invalid@2.0.1: {}
+  character-reference-invalid@2.0.1:
+    optional: true
 
   chokidar@4.0.3:
     dependencies:
@@ -10335,7 +10251,8 @@ snapshots:
       - '@types/react'
       - '@types/react-dom'
 
-  collapse-white-space@2.1.0: {}
+  collapse-white-space@2.1.0:
+    optional: true
 
   color-convert@2.0.1:
     dependencies:
@@ -10563,10 +10480,12 @@ snapshots:
   decode-named-character-reference@1.2.0:
     dependencies:
       character-entities: 2.0.2
+    optional: true
 
   decode-named-character-reference@1.3.0:
     dependencies:
       character-entities: 2.0.2
+    optional: true
 
   deepmerge@4.3.1: {}
 
@@ -10713,7 +10632,8 @@ snapshots:
 
   entities@4.5.0: {}
 
-  entities@6.0.1: {}
+  entities@6.0.1:
+    optional: true
 
   entities@7.0.1: {}
 
@@ -10876,6 +10796,7 @@ snapshots:
       devlop: 1.1.0
       estree-util-visit: 2.0.0
       unist-util-position-from-estree: 2.0.0
+    optional: true
 
   esast-util-from-js@2.0.1:
     dependencies:
@@ -10883,6 +10804,7 @@ snapshots:
       acorn: 8.16.0
       esast-util-from-estree: 2.0.0
       vfile-message: 4.0.3
+    optional: true
 
   esbuild@0.28.2:
     optionalDependencies:
@@ -10919,13 +10841,15 @@ snapshots:
 
   escape-string-regexp@4.0.0: {}
 
-  escape-string-regexp@5.0.0: {}
+  escape-string-regexp@5.0.0:
+    optional: true
 
   esprima@4.0.1: {}
 
   estree-util-attach-comments@3.0.0:
     dependencies:
       '@types/estree': 1.0.9
+    optional: true
 
   estree-util-build-jsx@3.0.1:
     dependencies:
@@ -10933,24 +10857,29 @@ snapshots:
       devlop: 1.1.0
       estree-util-is-identifier-name: 3.0.0
       estree-walker: 3.0.3
+    optional: true
 
-  estree-util-is-identifier-name@3.0.0: {}
+  estree-util-is-identifier-name@3.0.0:
+    optional: true
 
   estree-util-scope@1.0.0:
     dependencies:
       '@types/estree': 1.0.9
       devlop: 1.1.0
+    optional: true
 
   estree-util-to-js@2.0.0:
     dependencies:
       '@types/estree-jsx': 1.0.5
       astring: 1.9.0
       source-map: 0.7.6
+    optional: true
 
   estree-util-visit@2.0.0:
     dependencies:
       '@types/estree-jsx': 1.0.5
       '@types/unist': 3.0.3
+    optional: true
 
   estree-walker@0.6.1: {}
 
@@ -10961,6 +10890,7 @@ snapshots:
   estree-walker@3.0.3:
     dependencies:
       '@types/estree': 1.0.9
+    optional: true
 
   esutils@2.0.3: {}
 
@@ -11200,19 +11130,6 @@ snapshots:
     dependencies:
       function-bind: 1.1.2
 
-  hast-util-from-dom@5.0.1:
-    dependencies:
-      '@types/hast': 3.0.5
-      hastscript: 9.0.1
-      web-namespaces: 2.0.1
-
-  hast-util-from-html-isomorphic@2.0.0:
-    dependencies:
-      '@types/hast': 3.0.4
-      hast-util-from-dom: 5.0.1
-      hast-util-from-html: 2.0.3
-      unist-util-remove-position: 5.0.0
-
   hast-util-from-html@2.0.3:
     dependencies:
       '@types/hast': 3.0.5
@@ -11221,6 +11138,7 @@ snapshots:
       parse5: 7.3.0
       vfile: 6.0.3
       vfile-message: 4.0.3
+    optional: true
 
   hast-util-from-parse5@8.0.3:
     dependencies:
@@ -11232,15 +11150,12 @@ snapshots:
       vfile: 6.0.3
       vfile-location: 5.0.3
       web-namespaces: 2.0.1
+    optional: true
 
   hast-util-has-property@3.0.0:
     dependencies:
       '@types/hast': 3.0.5
 
-  hast-util-heading-rank@3.0.0:
-    dependencies:
-      '@types/hast': 3.0.4
-
   hast-util-is-element@3.0.0:
     dependencies:
       '@types/hast': 3.0.4
@@ -11264,6 +11179,7 @@ snapshots:
       vfile: 6.0.3
       web-namespaces: 2.0.1
       zwitch: 2.0.4
+    optional: true
 
   hast-util-select@6.0.4:
     dependencies:
@@ -11303,6 +11219,7 @@ snapshots:
       zwitch: 2.0.4
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   hast-util-to-html@9.0.5:
     dependencies:
@@ -11337,6 +11254,7 @@ snapshots:
       vfile-message: 4.0.3
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   hast-util-to-parse5@8.0.1:
     dependencies:
@@ -11347,6 +11265,7 @@ snapshots:
       space-separated-tokens: 2.0.2
       web-namespaces: 2.0.1
       zwitch: 2.0.4
+    optional: true
 
   hast-util-to-string@3.0.1:
     dependencies:
@@ -11417,7 +11336,8 @@ snapshots:
 
   inherits@2.0.4: {}
 
-  inline-style-parser@0.2.7: {}
+  inline-style-parser@0.2.7:
+    optional: true
 
   input-otp@1.4.1(react-dom@19.2.0(react@19.2.0))(react@19.2.0):
     dependencies:
@@ -11436,12 +11356,14 @@ snapshots:
 
   iron-webcrypto@1.2.1: {}
 
-  is-alphabetical@2.0.1: {}
+  is-alphabetical@2.0.1:
+    optional: true
 
   is-alphanumerical@2.0.1:
     dependencies:
       is-alphabetical: 2.0.1
       is-decimal: 2.0.1
+    optional: true
 
   is-array-buffer@3.0.5:
     dependencies:
@@ -11485,7 +11407,8 @@ snapshots:
       call-bound: 1.0.4
       has-tostringtag: 1.0.2
 
-  is-decimal@2.0.1: {}
+  is-decimal@2.0.1:
+    optional: true
 
   is-docker@2.2.1: {}
 
@@ -11511,7 +11434,8 @@ snapshots:
       has-tostringtag: 1.0.2
       safe-regex-test: 1.1.0
 
-  is-hexadecimal@2.0.1: {}
+  is-hexadecimal@2.0.1:
+    optional: true
 
   is-map@2.0.3: {}
 
@@ -11758,7 +11682,8 @@ snapshots:
 
   lodash@4.17.21: {}
 
-  longest-streak@3.1.0: {}
+  longest-streak@3.1.0:
+    optional: true
 
   loose-envify@1.4.0:
     dependencies:
@@ -11796,7 +11721,8 @@ snapshots:
     dependencies:
       semver: 6.3.1
 
-  markdown-extensions@2.0.0: {}
+  markdown-extensions@2.0.0:
+    optional: true
 
   markdown-it@14.3.2:
     dependencies:
@@ -11807,7 +11733,8 @@ snapshots:
       punycode.js: 2.3.1
       uc.micro: 2.1.0
 
-  markdown-table@3.0.4: {}
+  markdown-table@3.0.4:
+    optional: true
 
   math-intrinsics@1.1.0: {}
 
@@ -11823,20 +11750,7 @@ snapshots:
       '@types/mdast': 4.0.4
       '@types/unist': 3.0.3
       unist-util-visit: 5.1.0
-
-  mdast-util-directive@3.1.0:
-    dependencies:
-      '@types/mdast': 4.0.4
-      '@types/unist': 3.0.3
-      ccount: 2.0.1
-      devlop: 1.1.0
-      mdast-util-from-markdown: 2.0.2
-      mdast-util-to-markdown: 2.1.2
-      parse-entities: 4.0.2
-      stringify-entities: 4.0.4
-      unist-util-visit-parents: 6.0.2
-    transitivePeerDependencies:
-      - supports-color
+    optional: true
 
   mdast-util-find-and-replace@3.0.2:
     dependencies:
@@ -11844,23 +11758,7 @@ snapshots:
       escape-string-regexp: 5.0.0
       unist-util-is: 6.0.1
       unist-util-visit-parents: 6.0.2
-
-  mdast-util-from-markdown@2.0.2:
-    dependencies:
-      '@types/mdast': 4.0.4
-      '@types/unist': 3.0.3
-      decode-named-character-reference: 1.2.0
-      devlop: 1.1.0
-      mdast-util-to-string: 4.0.0
-      micromark: 4.0.2
-      micromark-util-decode-numeric-character-reference: 2.0.2
-      micromark-util-decode-string: 2.0.1
-      micromark-util-normalize-identifier: 2.0.1
-      micromark-util-symbol: 2.0.1
-      micromark-util-types: 2.0.2
-      unist-util-stringify-position: 4.0.0
-    transitivePeerDependencies:
-      - supports-color
+    optional: true
 
   mdast-util-from-markdown@2.0.3:
     dependencies:
@@ -11878,6 +11776,7 @@ snapshots:
       unist-util-stringify-position: 4.0.0
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   mdast-util-gfm-autolink-literal@2.0.1:
     dependencies:
@@ -11886,6 +11785,7 @@ snapshots:
       devlop: 1.1.0
       mdast-util-find-and-replace: 3.0.2
       micromark-util-character: 2.1.1
+    optional: true
 
   mdast-util-gfm-footnote@2.1.0:
     dependencies:
@@ -11896,6 +11796,7 @@ snapshots:
       micromark-util-normalize-identifier: 2.0.1
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   mdast-util-gfm-strikethrough@2.0.0:
     dependencies:
@@ -11904,6 +11805,7 @@ snapshots:
       mdast-util-to-markdown: 2.1.2
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   mdast-util-gfm-table@2.0.0:
     dependencies:
@@ -11914,6 +11816,7 @@ snapshots:
       mdast-util-to-markdown: 2.1.2
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   mdast-util-gfm-task-list-item@2.0.0:
     dependencies:
@@ -11923,6 +11826,7 @@ snapshots:
       mdast-util-to-markdown: 2.1.2
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   mdast-util-gfm@3.1.0:
     dependencies:
@@ -11935,18 +11839,7 @@ snapshots:
       mdast-util-to-markdown: 2.1.2
     transitivePeerDependencies:
       - supports-color
-
-  mdast-util-math@3.0.0:
-    dependencies:
-      '@types/hast': 3.0.4
-      '@types/mdast': 4.0.4
-      devlop: 1.1.0
-      longest-streak: 3.1.0
-      mdast-util-from-markdown: 2.0.2
-      mdast-util-to-markdown: 2.1.2
-      unist-util-remove-position: 5.0.0
-    transitivePeerDependencies:
-      - supports-color
+    optional: true
 
   mdast-util-mdx-expression@2.0.1:
     dependencies:
@@ -11958,6 +11851,7 @@ snapshots:
       mdast-util-to-markdown: 2.1.2
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   mdast-util-mdx-jsx@3.2.0:
     dependencies:
@@ -11975,6 +11869,7 @@ snapshots:
       vfile-message: 4.0.3
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   mdast-util-mdx@3.0.0:
     dependencies:
@@ -11985,6 +11880,7 @@ snapshots:
       mdast-util-to-markdown: 2.1.2
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   mdast-util-mdxjs-esm@2.0.1:
     dependencies:
@@ -11996,11 +11892,13 @@ snapshots:
       mdast-util-to-markdown: 2.1.2
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   mdast-util-phrasing@4.1.0:
     dependencies:
       '@types/mdast': 4.0.4
       unist-util-is: 6.0.1
+    optional: true
 
   mdast-util-to-hast@13.2.1:
     dependencies:
@@ -12025,6 +11923,7 @@ snapshots:
       micromark-util-decode-string: 2.0.1
       unist-util-visit: 5.1.0
       zwitch: 2.0.4
+    optional: true
 
   mdast-util-to-string@4.0.0:
     dependencies:
@@ -12108,16 +12007,7 @@ snapshots:
       micromark-util-subtokenize: 2.1.0
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
-
-  micromark-extension-directive@3.0.2:
-    dependencies:
-      devlop: 1.1.0
-      micromark-factory-space: 2.0.1
-      micromark-factory-whitespace: 2.0.1
-      micromark-util-character: 2.1.1
-      micromark-util-symbol: 2.0.1
-      micromark-util-types: 2.0.2
-      parse-entities: 4.0.2
+    optional: true
 
   micromark-extension-gfm-autolink-literal@2.1.0:
     dependencies:
@@ -12125,6 +12015,7 @@ snapshots:
       micromark-util-sanitize-uri: 2.0.1
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-extension-gfm-footnote@2.1.0:
     dependencies:
@@ -12136,6 +12027,7 @@ snapshots:
       micromark-util-sanitize-uri: 2.0.1
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-extension-gfm-strikethrough@2.1.0:
     dependencies:
@@ -12145,6 +12037,7 @@ snapshots:
       micromark-util-resolve-all: 2.0.1
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-extension-gfm-table@2.1.2:
     dependencies:
@@ -12153,10 +12046,12 @@ snapshots:
       micromark-util-character: 2.1.1
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-extension-gfm-tagfilter@2.0.0:
     dependencies:
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-extension-gfm-task-list-item@2.1.0:
     dependencies:
@@ -12165,6 +12060,7 @@ snapshots:
       micromark-util-character: 2.1.1
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-extension-gfm@3.0.0:
     dependencies:
@@ -12176,16 +12072,7 @@ snapshots:
       micromark-extension-gfm-task-list-item: 2.1.0
       micromark-util-combine-extensions: 2.0.1
       micromark-util-types: 2.0.2
-
-  micromark-extension-math@3.1.0:
-    dependencies:
-      '@types/katex': 0.16.7
-      devlop: 1.1.0
-      katex: 0.16.47
-      micromark-factory-space: 2.0.1
-      micromark-util-character: 2.1.1
-      micromark-util-symbol: 2.0.1
-      micromark-util-types: 2.0.2
+    optional: true
 
   micromark-extension-mdx-expression@3.0.1:
     dependencies:
@@ -12197,6 +12084,7 @@ snapshots:
       micromark-util-events-to-acorn: 2.0.3
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-extension-mdx-jsx@3.0.2:
     dependencies:
@@ -12210,10 +12098,12 @@ snapshots:
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
       vfile-message: 4.0.3
+    optional: true
 
   micromark-extension-mdx-md@2.0.0:
     dependencies:
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-extension-mdxjs-esm@3.0.0:
     dependencies:
@@ -12226,6 +12116,7 @@ snapshots:
       micromark-util-types: 2.0.2
       unist-util-position-from-estree: 2.0.0
       vfile-message: 4.0.3
+    optional: true
 
   micromark-extension-mdxjs@3.0.0:
     dependencies:
@@ -12237,12 +12128,14 @@ snapshots:
       micromark-extension-mdxjs-esm: 3.0.0
       micromark-util-combine-extensions: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-factory-destination@2.0.1:
     dependencies:
       micromark-util-character: 2.1.1
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-factory-label@2.0.1:
     dependencies:
@@ -12250,6 +12143,7 @@ snapshots:
       micromark-util-character: 2.1.1
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-factory-mdx-expression@2.0.3:
     dependencies:
@@ -12262,11 +12156,13 @@ snapshots:
       micromark-util-types: 2.0.2
       unist-util-position-from-estree: 2.0.0
       vfile-message: 4.0.3
+    optional: true
 
   micromark-factory-space@2.0.1:
     dependencies:
       micromark-util-character: 2.1.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-factory-title@2.0.1:
     dependencies:
@@ -12274,6 +12170,7 @@ snapshots:
       micromark-util-character: 2.1.1
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-factory-whitespace@2.0.1:
     dependencies:
@@ -12281,6 +12178,7 @@ snapshots:
       micromark-util-character: 2.1.1
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-util-character@2.1.1:
     dependencies:
@@ -12290,21 +12188,25 @@ snapshots:
   micromark-util-chunked@2.0.1:
     dependencies:
       micromark-util-symbol: 2.0.1
+    optional: true
 
   micromark-util-classify-character@2.0.1:
     dependencies:
       micromark-util-character: 2.1.1
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-util-combine-extensions@2.0.1:
     dependencies:
       micromark-util-chunked: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-util-decode-numeric-character-reference@2.0.2:
     dependencies:
       micromark-util-symbol: 2.0.1
+    optional: true
 
   micromark-util-decode-string@2.0.1:
     dependencies:
@@ -12312,6 +12214,7 @@ snapshots:
       micromark-util-character: 2.1.1
       micromark-util-decode-numeric-character-reference: 2.0.2
       micromark-util-symbol: 2.0.1
+    optional: true
 
   micromark-util-encode@2.0.1: {}
 
@@ -12324,16 +12227,20 @@ snapshots:
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
       vfile-message: 4.0.3
+    optional: true
 
-  micromark-util-html-tag-name@2.0.1: {}
+  micromark-util-html-tag-name@2.0.1:
+    optional: true
 
   micromark-util-normalize-identifier@2.0.1:
     dependencies:
       micromark-util-symbol: 2.0.1
+    optional: true
 
   micromark-util-resolve-all@2.0.1:
     dependencies:
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-util-sanitize-uri@2.0.1:
     dependencies:
@@ -12347,6 +12254,7 @@ snapshots:
       micromark-util-chunked: 2.0.1
       micromark-util-symbol: 2.0.1
       micromark-util-types: 2.0.2
+    optional: true
 
   micromark-util-symbol@2.0.1: {}
 
@@ -12373,6 +12281,7 @@ snapshots:
       micromark-util-types: 2.0.2
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   minimatch@3.1.5:
     dependencies:
@@ -12525,6 +12434,7 @@ snapshots:
       is-alphanumerical: 2.0.1
       is-decimal: 2.0.1
       is-hexadecimal: 2.0.1
+    optional: true
 
   parse-json@5.2.0:
     dependencies:
@@ -12541,12 +12451,14 @@ snapshots:
       unist-util-modify-children: 4.0.0
       unist-util-visit-children: 3.0.0
       vfile: 6.0.3
+    optional: true
 
   parse-srcset@1.0.2: {}
 
   parse5@7.3.0:
     dependencies:
       entities: 6.0.1
+    optional: true
 
   path-browserify@1.0.1: {}
 
@@ -12943,6 +12855,7 @@ snapshots:
       '@types/estree': 1.0.9
       estree-util-build-jsx: 3.0.1
       vfile: 6.0.3
+    optional: true
 
   recma-jsx@1.0.1(acorn@8.16.0):
     dependencies:
@@ -12952,6 +12865,7 @@ snapshots:
       recma-parse: 1.0.0
       recma-stringify: 1.0.0
       unified: 11.0.5
+    optional: true
 
   recma-parse@1.0.0:
     dependencies:
@@ -12959,6 +12873,7 @@ snapshots:
       esast-util-from-js: 2.0.1
       unified: 11.0.5
       vfile: 6.0.3
+    optional: true
 
   recma-stringify@1.0.0:
     dependencies:
@@ -12966,6 +12881,7 @@ snapshots:
       estree-util-to-js: 2.0.0
       unified: 11.0.5
       vfile: 6.0.3
+    optional: true
 
   reflect.getprototypeof@1.0.10:
     dependencies:
@@ -13018,39 +12934,16 @@ snapshots:
     dependencies:
       jsesc: 3.1.0
 
-  rehype-autolink-headings@7.1.0:
-    dependencies:
-      '@types/hast': 3.0.4
-      '@ungap/structured-clone': 1.3.0
-      hast-util-heading-rank: 3.0.0
-      hast-util-is-element: 3.0.0
-      unified: 11.0.5
-      unist-util-visit: 5.1.0
-
-  rehype-components@0.3.0:
-    dependencies:
-      hast-util-is-element: 3.0.0
-      unist-util-visit: 5.1.0
-
   rehype-expressive-code@0.44.2:
     dependencies:
       expressive-code: 0.44.2
 
-  rehype-katex@7.0.1:
-    dependencies:
-      '@types/hast': 3.0.4
-      '@types/katex': 0.16.7
-      hast-util-from-html-isomorphic: 2.0.0
-      hast-util-to-text: 4.0.2
-      katex: 0.16.47
-      unist-util-visit-parents: 6.0.2
-      vfile: 6.0.3
-
   rehype-raw@7.0.0:
     dependencies:
       '@types/hast': 3.0.5
       hast-util-raw: 9.1.0
       vfile: 6.0.3
+    optional: true
 
   rehype-recma@1.0.0:
     dependencies:
@@ -13059,29 +12952,14 @@ snapshots:
       hast-util-to-estree: 3.1.3
     transitivePeerDependencies:
       - supports-color
-
-  rehype-slug@6.0.0:
-    dependencies:
-      '@types/hast': 3.0.4
-      github-slugger: 2.0.0
-      hast-util-heading-rank: 3.0.0
-      hast-util-to-string: 3.0.1
-      unist-util-visit: 5.1.0
+    optional: true
 
   rehype-stringify@10.0.1:
     dependencies:
       '@types/hast': 3.0.5
       hast-util-to-html: 9.0.5
       unified: 11.0.5
-
-  remark-directive@3.0.1:
-    dependencies:
-      '@types/mdast': 4.0.4
-      mdast-util-directive: 3.1.0
-      micromark-extension-directive: 3.0.2
-      unified: 11.0.5
-    transitivePeerDependencies:
-      - supports-color
+    optional: true
 
   remark-gfm@4.0.1:
     dependencies:
@@ -13093,24 +12971,7 @@ snapshots:
       unified: 11.0.5
     transitivePeerDependencies:
       - supports-color
-
-  remark-github-admonitions-to-directives@1.0.5:
-    dependencies:
-      '@types/mdast': 4.0.4
-      mdast-util-directive: 3.1.0
-      unified: 11.0.5
-      unist-util-visit: 5.1.0
-    transitivePeerDependencies:
-      - supports-color
-
-  remark-math@6.0.0:
-    dependencies:
-      '@types/mdast': 4.0.4
-      mdast-util-math: 3.0.0
-      micromark-extension-math: 3.1.0
-      unified: 11.0.5
-    transitivePeerDependencies:
-      - supports-color
+    optional: true
 
   remark-mdx@3.1.1:
     dependencies:
@@ -13118,6 +12979,7 @@ snapshots:
       micromark-extension-mdxjs: 3.0.0
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   remark-parse@11.0.0:
     dependencies:
@@ -13127,6 +12989,7 @@ snapshots:
       unified: 11.0.5
     transitivePeerDependencies:
       - supports-color
+    optional: true
 
   remark-rehype@11.1.2:
     dependencies:
@@ -13135,11 +12998,7 @@ snapshots:
       mdast-util-to-hast: 13.2.1
       unified: 11.0.5
       vfile: 6.0.3
-
-  remark-sectionize@2.1.0:
-    dependencies:
-      unist-util-find-after: 4.0.1
-      unist-util-visit: 4.1.2
+    optional: true
 
   remark-smartypants@3.0.3:
     dependencies:
@@ -13147,12 +13006,14 @@ snapshots:
       retext-smartypants: 6.2.0
       unified: 11.0.5
       unist-util-visit: 5.1.0
+    optional: true
 
   remark-stringify@11.0.0:
     dependencies:
       '@types/mdast': 4.0.4
       mdast-util-to-markdown: 2.1.2
       unified: 11.0.5
+    optional: true
 
   request-light@0.5.8: {}
 
@@ -13180,6 +13041,7 @@ snapshots:
       '@types/nlcst': 2.0.3
       parse-latin: 7.0.0
       unified: 11.0.5
+    optional: true
 
   retext-smartypants@6.2.0:
     dependencies:
@@ -13192,6 +13054,7 @@ snapshots:
       '@types/nlcst': 2.0.3
       nlcst-to-string: 4.0.0
       unified: 11.0.5
+    optional: true
 
   retext@9.0.0:
     dependencies:
@@ -13199,6 +13062,7 @@ snapshots:
       retext-latin: 4.0.0
       retext-stringify: 4.0.0
       unified: 11.0.5
+    optional: true
 
   rolldown@1.2.8:
     dependencies:
@@ -13318,6 +13182,11 @@ snapshots:
       parse-srcset: 1.0.2
       postcss: 8.5.6
 
+  satteri-katex@0.1.1(satteri@0.10.5):
+    dependencies:
+      katex: 0.16.47
+      satteri: 0.10.5
+
   satteri@0.10.5:
     dependencies:
       '@types/estree-jsx': 1.0.5
@@ -13593,10 +13462,12 @@ snapshots:
   style-to-js@1.1.21:
     dependencies:
       style-to-object: 1.0.14
+    optional: true
 
   style-to-object@1.0.14:
     dependencies:
       inline-style-parser: 0.2.7
+    optional: true
 
   stylehacks@5.1.1(postcss@8.5.6):
     dependencies:
@@ -13779,20 +13650,11 @@ snapshots:
       ohash: 2.0.12
       undici: 8.10.2
 
-  unist-util-find-after@4.0.1:
-    dependencies:
-      '@types/unist': 2.0.11
-      unist-util-is: 5.2.1
-
   unist-util-find-after@5.0.0:
     dependencies:
       '@types/unist': 3.0.3
       unist-util-is: 6.0.1
 
-  unist-util-is@5.2.1:
-    dependencies:
-      '@types/unist': 2.0.11
-
   unist-util-is@6.0.1:
     dependencies:
       '@types/unist': 3.0.3
@@ -13801,10 +13663,12 @@ snapshots:
     dependencies:
       '@types/unist': 3.0.3
       array-iterate: 2.0.1
+    optional: true
 
   unist-util-position-from-estree@2.0.0:
     dependencies:
       '@types/unist': 3.0.3
+    optional: true
 
   unist-util-position@5.0.0:
     dependencies:
@@ -13814,6 +13678,7 @@ snapshots:
     dependencies:
       '@types/unist': 3.0.3
       unist-util-visit: 5.1.0
+    optional: true
 
   unist-util-stringify-position@4.0.0:
     dependencies:
@@ -13822,23 +13687,13 @@ snapshots:
   unist-util-visit-children@3.0.0:
     dependencies:
       '@types/unist': 3.0.3
-
-  unist-util-visit-parents@5.1.3:
-    dependencies:
-      '@types/unist': 2.0.11
-      unist-util-is: 5.2.1
+    optional: true
 
   unist-util-visit-parents@6.0.2:
     dependencies:
       '@types/unist': 3.0.3
       unist-util-is: 6.0.1
 
-  unist-util-visit@4.1.2:
-    dependencies:
-      '@types/unist': 2.0.11
-      unist-util-is: 5.2.1
-      unist-util-visit-parents: 5.1.3
-
   unist-util-visit@5.1.0:
     dependencies:
       '@types/unist': 3.0.3
@@ -13902,6 +13757,7 @@ snapshots:
     dependencies:
       '@types/unist': 3.0.3
       vfile: 6.0.3
+    optional: true
 
   vfile-message@4.0.3:
     dependencies:
@@ -14055,7 +13911,8 @@ snapshots:
 
   vscode-uri@3.2.0: {}
 
-  web-namespaces@2.0.1: {}
+  web-namespaces@2.0.1:
+    optional: true
 
   which-boxed-primitive@1.1.1:
     dependencies:
diff --git a/src/plugins/satteri/excerpt.mjs b/src/plugins/satteri/excerpt.mjs
index a759c65..acf356c 100644
--- a/src/plugins/satteri/excerpt.mjs
+++ b/src/plugins/satteri/excerpt.mjs
@@ -1,4 +1,5 @@
 import { defineMdastPlugin } from "satteri"
+import { toString } from "mdast-util-to-string"
 
 /**
  * 取正文第一个段落作为摘要，写进 frontmatter.excerpt。
@@ -11,7 +12,8 @@ export const excerpt = defineMdastPlugin({
     let text = ""
     for (const node of root.children) {
       if (node.type !== "paragraph") continue
-      text = ctx.textContent(node, { includeImageAlt: true, includeHtml: true })
+      // 同 reading-time：ctx.textContent 不含行内代码/公式，用 toString 保持一致
+      text = toString(node)
       break
     }
     ctx.data.astro.frontmatter.excerpt = text
diff --git a/src/plugins/satteri/reading-time.mjs b/src/plugins/satteri/reading-time.mjs
index 957535d..372123e 100644
--- a/src/plugins/satteri/reading-time.mjs
+++ b/src/plugins/satteri/reading-time.mjs
@@ -1,4 +1,5 @@
 import { defineMdastPlugin } from "satteri"
+import { toString } from "mdast-util-to-string"
 import getReadingTime from "reading-time"
 
 /**
@@ -10,8 +11,10 @@ import getReadingTime from "reading-time"
 export const readingTime = defineMdastPlugin({
   name: "reading-time",
   after(root, ctx) {
-    // 与原实现 mdast-util-to-string 的默认行为对齐
-    const text = ctx.textContent(root, { includeImageAlt: true, includeHtml: true })
+    // 用 mdast-util-to-string 而不是 ctx.textContent：
+    // 后者只拼接纯 text 节点，会漏掉代码块、行内代码、公式、图片 alt，
+    // 导致字数比迁移前少一截（实测 LaTeX 那篇 830 → 488 字）。
+    const text = toString(root)
     const stats = getReadingTime(text)
     const frontmatter = ctx.data.astro.frontmatter
     frontmatter.minutes = Math.max(1, Math.round(stats.minutes))