diff --git a/components/public/section-drawer.tsx b/components/public/section-drawer.tsx
deleted file mode 100644
index cfa20c3..0000000
--- a/components/public/section-drawer.tsx
+++ /dev/null
@@ -1,53 +0,0 @@
-"use client";
-
-import { ListTreeIcon } from "lucide-react";
-
-import { Button } from "@/components/ui/button";
-import {
-  Drawer,
-  DrawerClose,
-  DrawerContent,
-  DrawerDescription,
-  DrawerHeader,
-  DrawerTitle,
-  DrawerTrigger,
-} from "@/components/ui/drawer";
-
-export interface GuideSectionLink {
-  id: string;
-  label: string;
-}
-
-export function SectionDrawer({ sections }: { sections: GuideSectionLink[] }) {
-  return (
-    <div className="lg:hidden">
-      <Drawer showSwipeHandle>
-        <DrawerTrigger render={<Button variant="outline" className="w-full" />}>
-          <ListTreeIcon aria-hidden="true" />
-          สารบัญหน้านี้
-        </DrawerTrigger>
-        <DrawerContent>
-          <DrawerHeader>
-            <DrawerTitle>สารบัญหน้านี้</DrawerTitle>
-            <DrawerDescription>เลือกหัวข้อเพื่อเลื่อนไปยังเนื้อหา</DrawerDescription>
-          </DrawerHeader>
-          <nav aria-label="สารบัญบนมือถือ" className="grid gap-1 overflow-y-auto p-4">
-            {sections.map((section) => (
-              <DrawerClose
-                key={section.id}
-                render={
-                  <a
-                    href={`#${section.id}`}
-                    className="flex min-h-11 items-center rounded-lg px-3 text-left text-sm hover:bg-muted focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring"
-                  />
-                }
-              >
-                {section.label}
-              </DrawerClose>
-            ))}
-          </nav>
-        </DrawerContent>
-      </Drawer>
-    </div>
-  );
-}
diff --git a/components/site-install-button.tsx b/components/site-install-button.tsx
deleted file mode 100644
index 74e0e56..0000000
--- a/components/site-install-button.tsx
+++ /dev/null
@@ -1,76 +0,0 @@
-"use client";
-
-import { useEffect, useState } from "react";
-import { DownloadIcon } from "lucide-react";
-
-import { Button } from "@/components/ui/button";
-import { Dialog, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle } from "@/components/ui/dialog";
-
-type InstallEvent = Event & {
-  prompt: () => Promise<void>;
-  userChoice: Promise<{ outcome: string }>;
-};
-
-export function SiteInstallButton() {
-  const [open, setOpen] = useState(false);
-  const [installed, setInstalled] = useState(false);
-  const [installEvent, setInstallEvent] = useState<InstallEvent | null>(null);
-  const [busy, setBusy] = useState(false);
-  const [error, setError] = useState("");
-
-  useEffect(() => {
-    const displayMode = window.matchMedia("(display-mode: standalone)");
-    const frame = requestAnimationFrame(() => setInstalled(displayMode.matches ||
-      (navigator as Navigator & { standalone?: boolean }).standalone === true));
-    const beforeInstall = (event: Event) => {
-      event.preventDefault();
-      setInstallEvent(event as InstallEvent);
-    };
-    const onInstalled = () => { setInstalled(true); setOpen(false); setInstallEvent(null); };
-    window.addEventListener("beforeinstallprompt", beforeInstall);
-    window.addEventListener("appinstalled", onInstalled);
-    return () => {
-      cancelAnimationFrame(frame);
-      window.removeEventListener("beforeinstallprompt", beforeInstall);
-      window.removeEventListener("appinstalled", onInstalled);
-    };
-  }, []);
-
-  async function install() {
-    if (!installEvent || busy) return;
-    setBusy(true);
-    setError("");
-    try {
-      await installEvent.prompt();
-      const result = await installEvent.userChoice;
-      setInstallEvent(null);
-      if (result.outcome === "accepted") setOpen(false);
-    } catch { setError("ติดตั้งไม่สำเร็จ กรุณาลองจากเมนูของเบราว์เซอร์"); }
-    finally { setBusy(false); }
-  }
-
-  if (installed) return null;
-
-  return <>
-    <Button variant="ghost" size="sm" onClick={() => setOpen(true)} aria-label="ติดตั้ง Buzz Guide">
-      <DownloadIcon data-icon="inline-start" />ติดตั้งแอป
-    </Button>
-    <Dialog open={open} onOpenChange={setOpen}>
-      <DialogContent>
-        <DialogHeader>
-          <DialogTitle>ติดตั้ง Buzz Guide</DialogTitle>
-          <DialogDescription>เพิ่มไกด์ลงหน้าจอหลักเพื่อเปิดอ่านได้สะดวก</DialogDescription>
-        </DialogHeader>
-        {!installEvent && <div className="flex flex-col gap-3 text-sm text-muted-foreground">
-          <p>บน iPhone/iPad เปิดใน Safari แตะปุ่มแชร์ แล้วเลือก “เพิ่มไปยังหน้าจอโฮม”</p>
-          <p>บน Android หรือคอมพิวเตอร์ เปิดเมนูของเบราว์เซอร์ แล้วเลือก “ติดตั้งแอป” หรือ “เพิ่มไปยังหน้าจอหลัก” หากมีตัวเลือกนี้</p>
-        </div>}
-        {error && <p role="alert" className="text-sm text-destructive">{error}</p>}
-        <DialogFooter>
-          <Button variant="outline" onClick={() => setOpen(false)}>ปิด</Button>
-          {installEvent && <Button disabled={busy} onClick={() => void install()}>{busy ? "กำลังติดตั้ง…" : "ติดตั้งแอป"}</Button>}
-        </DialogFooter>
-      </DialogContent>
-    </Dialog>
-  </>;
-}