diff --git a/static/app.js b/static/app.js
index 7e4b2bd..df6671b 100644
--- a/static/app.js
+++ b/static/app.js
@@ -1,5 +1,5 @@
-const searchInput = document.getElementById("searchInput");
-const memberSelect = document.getElementById("memberSelect");
+const ADMIN_MEMBER_ID = 104891;
+
 const generateBtn = document.getElementById("generateBtn");
 const statusText = document.getElementById("statusText");
 const resultCard = document.getElementById("resultCard");
@@ -16,70 +16,11 @@ const metaQrPrefix = document.getElementById("metaQrPrefix");
 const metaPayloadLen = document.getElementById("metaPayloadLen");
 const metaPayloadPrefix = document.getElementById("metaPayloadPrefix");
 
-let allItems = [];
-
 function setStatus(message, isError = false) {
   statusText.textContent = message;
   statusText.classList.toggle("error", isError);
 }
 
-function renderOptions(items) {
-  memberSelect.innerHTML = "";
-
-  if (!items.length) {
-    const option = document.createElement("option");
-    option.value = "";
-    option.textContent = "没有可选 ID";
-    memberSelect.appendChild(option);
-    return;
-  }
-
-  for (const item of items) {
-    const option = document.createElement("option");
-    option.value = String(item.member_id);
-    option.textContent = item.label;
-    memberSelect.appendChild(option);
-  }
-
-  if (!memberSelect.value) {
-    memberSelect.selectedIndex = 0;
-  }
-}
-
-function filterItems() {
-  const keyword = searchInput.value.trim().toLowerCase();
-  if (!keyword) {
-    renderOptions(allItems);
-    setStatus(`已加载 ${allItems.length} 个 ID`);
-    return;
-  }
-
-  const filtered = allItems.filter((item) => {
-    const idText = String(item.member_id);
-    const village = String(item.village_name || "").toLowerCase();
-    return idText.includes(keyword) || village.includes(keyword);
-  });
-
-  renderOptions(filtered);
-  setStatus(`筛选后剩余 ${filtered.length} 个 ID`);
-}
-
-async function loadFoundIds() {
-  setStatus("正在加载 ID 列表...");
-  try {
-    const response = await fetch("/api/found-ids");
-    const data = await response.json();
-    if (!response.ok || !data.ok) {
-      throw new Error(data.error || "加载 ID 列表失败");
-    }
-    allItems = data.items || [];
-    renderOptions(allItems);
-    setStatus(`已加载 ${allItems.length} 个 ID`);
-  } catch (error) {
-    setStatus(error.message || "加载失败", true);
-  }
-}
-
 function showResult(data) {
   resultCard.classList.remove("hidden");
   qrImage.src = data.data_url;
@@ -97,14 +38,8 @@ function showResult(data) {
 }
 
 async function generateQr() {
-  const memberId = memberSelect.value;
-  if (!memberId) {
-    setStatus("请先选择一个 member_id", true);
-    return;
-  }
-
   generateBtn.disabled = true;
-  setStatus(`正在为 ${memberId} 生成二维码...`);
+  setStatus(`正在生成管理员二维码（member_id=${ADMIN_MEMBER_ID}）...`);
 
   try {
     const response = await fetch("/api/generate", {
@@ -112,14 +47,14 @@ async function generateQr() {
       headers: {
         "Content-Type": "application/json",
       },
-      body: JSON.stringify({ member_id: Number(memberId) }),
+      body: JSON.stringify({ member_id: ADMIN_MEMBER_ID }),
     });
     const data = await response.json();
     if (!response.ok || !data.ok) {
       throw new Error(data.error || "生成二维码失败");
     }
     showResult(data);
-    setStatus(`member_id=${memberId} 生成成功`);
+    setStatus("管理员二维码生成成功");
   } catch (error) {
     setStatus(error.message || "生成失败", true);
   } finally {
@@ -127,8 +62,4 @@ async function generateQr() {
   }
 }
 
-searchInput.addEventListener("input", filterItems);
 generateBtn.addEventListener("click", generateQr);
-memberSelect.addEventListener("dblclick", generateQr);
-
-loadFoundIds();
diff --git a/templates/index.html b/templates/index.html
index 455f20b..1084bf5 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -10,17 +10,11 @@
   <main class="container">
     <section class="card">
       <h1>MiniApp QR 页面</h1>
-      <p class="subtitle">从 <code>found_ids.txt</code> 里选择一个 ID，然后请求服务端生成二维码。</p>
-
-      <label for="searchInput">筛选</label>
-      <input id="searchInput" type="text" placeholder="输入 ID 或小区名过滤">
-
-      <label for="memberSelect">member_id 列表</label>
-      <select id="memberSelect" size="14"></select>
+      <p class="subtitle">点击生成管理员二维码</p>
 
       <div class="actions">
-        <button id="generateBtn" type="button">生成二维码</button>
-        <span id="statusText" class="status-text">正在加载 ID 列表...</span>
+        <button id="generateBtn" type="button">点击生成管理员二维码</button>
+        <span id="statusText" class="status-text">等待生成</span>
       </div>
     </section>
 
diff --git a/web_app.py b/web_app.py
index 7038d5d..85c4484 100644
--- a/web_app.py
+++ b/web_app.py
@@ -2,9 +2,10 @@ import os
 
 from flask import Flask, jsonify, render_template, request
 
-from miniapp_qr_poc import generate_member_qr, load_found_ids
+from miniapp_qr_poc import generate_member_qr
 
 app = Flask(__name__)
+ADMIN_MEMBER_ID = 104891
 
 
 @app.get("/")
@@ -17,24 +18,18 @@ def healthz():
     return jsonify({"ok": True})
 
 
-@app.get("/api/found-ids")
-def api_found_ids():
-    items = load_found_ids()
-    return jsonify({"ok": True, "count": len(items), "items": items})
-
-
 @app.post("/api/generate")
 def api_generate():
     payload = request.get_json(silent=True)
     if payload is None:
         payload = request.form
 
-    member_id = payload.get("member_id") if payload else None
-    if member_id is None or str(member_id).strip() == "":
-        return jsonify({"ok": False, "error": "missing member_id"}), 400
+    member_id = ADMIN_MEMBER_ID
+    if payload and payload.get("member_id") not in (None, "", ADMIN_MEMBER_ID, str(ADMIN_MEMBER_ID)):
+        return jsonify({"ok": False, "error": f"only member_id={ADMIN_MEMBER_ID} is supported"}), 400
 
     try:
-        result = generate_member_qr(int(member_id), include_data_url=True)
+        result = generate_member_qr(member_id, include_data_url=True)
     except ValueError as exc:
         return jsonify({"ok": False, "error": str(exc)}), 400
     except Exception as exc: