diff --git a/apps/api/src/routes/admin/conf.ts b/apps/api/src/routes/admin/conf.ts
index f76e282..64141f0 100644
--- a/apps/api/src/routes/admin/conf.ts
+++ b/apps/api/src/routes/admin/conf.ts
@@ -52,27 +52,19 @@ function isAlive(lastHeartbeat: string) {
 
 /** camelCase 契约 ←→ options 表里的 snake_case key */
 const OPTION_KEYS = {
-  websiteBaseUrl: "website_base_url",
   websiteName: "website_name",
-  websiteNameShortcut: "website_name_shortcut",
-  websiteFooter: "website_footer",
   allowRegister: "allow_register",
   submissionListShowAll: "submission_list_show_all",
   classList: "class_list",
-  enableMaxkb: "enable_maxkb",
 } as const
 
 adminConfRoutes.get("/website", requireSuperAdmin, async (c) => {
   const options = await getWebsiteOptions()
   return success(c, {
-    websiteBaseUrl: options.website_base_url,
     websiteName: options.website_name,
-    websiteNameShortcut: options.website_name_shortcut,
-    websiteFooter: options.website_footer,
     allowRegister: options.allow_register,
     submissionListShowAll: options.submission_list_show_all,
     classList: options.class_list,
-    enableMaxkb: options.enable_maxkb,
   } satisfies WebsiteConfig)
 })
 
diff --git a/apps/api/src/routes/site.ts b/apps/api/src/routes/site.ts
index a2acc8e..b84dba2 100644
--- a/apps/api/src/routes/site.ts
+++ b/apps/api/src/routes/site.ts
@@ -14,14 +14,10 @@ export const siteRoutes = new Hono()
 siteRoutes.get("/site", async (c) => {
   const options = await getWebsiteOptions()
   return success(c, {
-    websiteBaseUrl: options.website_base_url,
     websiteName: options.website_name,
-    websiteNameShortcut: options.website_name_shortcut,
-    websiteFooter: options.website_footer,
     allowRegister: options.allow_register,
     submissionListShowAll: options.submission_list_show_all,
     classList: options.class_list,
-    enableMaxkb: options.enable_maxkb,
   } satisfies WebsiteConfig)
 })
 
diff --git a/apps/api/src/services/options.ts b/apps/api/src/services/options.ts
index e56ccfb..4a29731 100644
--- a/apps/api/src/services/options.ts
+++ b/apps/api/src/services/options.ts
@@ -3,14 +3,10 @@ import { inArray } from "drizzle-orm"
 import { db, schema } from "../db"
 
 export const websiteOptionDefaults = {
-  website_base_url: "http://127.0.0.1",
   website_name: "Online Judge",
-  website_name_shortcut: "oj",
-  website_footer: "Online Judge Footer",
   allow_register: true,
   submission_list_show_all: true,
   class_list: [] as string[],
-  enable_maxkb: true,
 }
 
 export async function getOptions<const T extends readonly string[]>(keys: T) {
diff --git a/apps/web/src/shared/composables/maxkb.ts b/apps/web/src/shared/composables/maxkb.ts
deleted file mode 100644
index 2741466..0000000
--- a/apps/web/src/shared/composables/maxkb.ts
+++ /dev/null
@@ -1,83 +0,0 @@
-import { useConfigStore } from "shared/store/config"
-import { useUserStore } from "shared/store/user"
-
-/**
- * MaxKB 知识库挂件的加载 / 卸载。
- *
- * 两个前提同时满足才加载：**已登录**（挂件本身就要登录才能用）且**后台开关打开**。
- * 任一条件变假就把脚本和它建出来的 DOM 一起撤掉。
- *
- * 脚本**只在这里注入**。原来 vite 有个 inject-maxkb 插件把 <script src> 写进
- * index.html，Vue 还没启动就已经加载执行了，后台开关根本拦不住 —— 别再加回去。
- *
- * 配置的实时推送不归这里管：App.vue 的 useConfigUpdate() 收 /ws/config 的广播、
- * 写进 configStore，下面那个 watch 自然就跟着动。这里再开一条连接是重复的，
- * 而且没登录时会撞 401（后端 /ws/config 要求会话）。
- */
-export function useMaxKB() {
-  const configStore = useConfigStore()
-  const userStore = useUserStore()
-  const isLoaded = ref(false)
-
-  const url = import.meta.env.PUBLIC_MAXKB_URL
-
-  const loadMaxKBScript = () => {
-    // 没配地址就什么都不做。这道判断原来在 vite 插件里，插件删掉之后挪过来，
-    // 否则会拿 undefined 当 src 去请求一个 /undefined
-    if (!url) return
-    if (!userStore.isAuthed) return
-    if (!configStore.config.enableMaxkb) return
-
-    if (document.querySelector(`script[src="${url}"]`)) {
-      isLoaded.value = true
-      return
-    }
-
-    const script = document.createElement("script")
-    script.src = url
-    script.async = true
-    script.defer = true
-    script.onload = () => {
-      isLoaded.value = true
-    }
-    script.onerror = () => {
-      console.error("Failed to load MaxKB script")
-    }
-    document.head.appendChild(script)
-  }
-
-  const removeMaxKBScript = () => {
-    if (!url) return
-    document.querySelector(`script[src="${url}"]`)?.remove()
-    // 脚本删掉只是不再重复执行，它已经建出来的挂件 DOM 得自己收拾
-    const removeElements = () => {
-      document.querySelectorAll('[id^="maxkb-"]').forEach((el) => el.remove())
-    }
-    if (document.readyState === "complete") {
-      removeElements()
-    } else {
-      window.addEventListener("load", removeElements, { once: true })
-    }
-    isLoaded.value = false
-  }
-
-  // 登录态和开关任一变化都重新判一次。immediate 是必须的：
-  // 页面加载时这两个值就已经定了，不会再触发一次变化
-  watch(
-    () => [userStore.isAuthed, configStore.config.enableMaxkb] as const,
-    ([authed, enabled]) => {
-      if (authed && enabled) {
-        loadMaxKBScript()
-      } else {
-        removeMaxKBScript()
-      }
-    },
-    { immediate: true },
-  )
-
-  return {
-    loadMaxKBScript,
-    removeMaxKBScript,
-    isLoaded: readonly(isLoaded),
-  }
-}
diff --git a/packages/contract/src/admin.ts b/packages/contract/src/admin.ts
index a8badae..3da729b 100644
--- a/packages/contract/src/admin.ts
+++ b/packages/contract/src/admin.ts
@@ -314,14 +314,10 @@ export const resetPasswordResponseSchema = z.object({ password: z.string() })
 // ---------------------------------------------------------------- 站点配置 / 运维
 
 export const updateWebsiteConfigRequestSchema = z.object({
-  websiteBaseUrl: z.string().max(256),
   websiteName: z.string().trim().min(1).max(64),
-  websiteNameShortcut: z.string().trim().min(1).max(32),
-  websiteFooter: z.string().max(1024 * 64),
   allowRegister: z.boolean(),
   submissionListShowAll: z.boolean(),
   classList: z.array(z.string()),
-  enableMaxkb: z.boolean(),
 })
 
 export const judgeServerSchema = z.object({
diff --git a/packages/contract/src/site.ts b/packages/contract/src/site.ts
index 1f28ce8..188d255 100644
--- a/packages/contract/src/site.ts
+++ b/packages/contract/src/site.ts
@@ -1,14 +1,14 @@
 import { z } from "zod"
 
+/**
+ * 站点配置。网址、简称、页脚三项 2026-10-13 删了（前后端从来没读过，改了也看不到变化），
+ * AI 小助手（MaxKB 挂件）连同开关一起删了。options 表里那几行旧值留着，没人读
+ */
 export const websiteConfigSchema = z.object({
-  websiteBaseUrl: z.string(),
   websiteName: z.string(),
-  websiteNameShortcut: z.string(),
-  websiteFooter: z.string(),
   allowRegister: z.boolean(),
   submissionListShowAll: z.boolean(),
   classList: z.array(z.string()),
-  enableMaxkb: z.boolean(),
 })
 
 /**