diff --git a/src/db.rs b/src/db.rs
index d00127f..f5e1037 100644
--- a/src/db.rs
+++ b/src/db.rs
@@ -395,7 +395,7 @@ pub(crate) fn seed_test_users(conn: &Connection) -> Result<()> {
         None => {
             let hash = hash_password("demo1234")?;
             conn.execute(
-                "INSERT INTO users (email, password_hash, name, role) VALUES (?1, ?2, '阿零', 'user')",
+                "INSERT INTO users (email, password_hash, name, role) VALUES (?1, ?2, 'demo', 'user')",
                 rusqlite::params!["demo@aitokenpool.local", hash],
             )?;
             conn.last_insert_rowid()
diff --git a/ui/index.html b/ui/index.html
index 4b51d97..c3802af 100644
--- a/ui/index.html
+++ b/ui/index.html
@@ -109,9 +109,9 @@ <h1>AITokenPool</h1>
     <div class="sidebar-bottom">
       <button class="btn btn-ghost btn-block" id="logout-btn" data-i18n="logout.btn">退出登录</button>
       <div class="user-chip">
-        <div class="avatar">零</div>
+        <div class="avatar" id="side-avatar">?</div>
         <div>
-          <strong>阿零</strong>
+          <strong id="side-name"></strong>
           <span><span data-i18n="common.balance">点数余额</span> <b id="side-balance">0</b></span>
         </div>
       </div>
@@ -397,7 +397,7 @@ <h3 data-i18n="settings.apikey">API Key</h3>
         <div class="card">
           <h3 data-i18n="settings.account">账户</h3>
           <div class="form">
-            <label><span data-i18n="settings.account.nickname">昵称</span> <input class="input" value="阿零"></label>
+            <label><span data-i18n="settings.account.nickname">昵称</span> <input class="input" id="settings-nickname" value=""></label>
             <label><span data-i18n="settings.account.email">邮箱</span> <input class="input" placeholder="you@company.com"></label>
             <button class="btn btn-primary" data-i18n="common.save">保存</button>
           </div>
diff --git a/ui/js/app.js b/ui/js/app.js
index 5926da8..91c4fae 100644
--- a/ui/js/app.js
+++ b/ui/js/app.js
@@ -1454,6 +1454,9 @@
   /* --- 设置 --- */
 
   function renderSettings() {
+    // 账户昵称框：真实昵称（rant 2026-08-22T00:01:52：不再静态写「阿零」，避免覆盖真实昵称）
+    const nick = $("#settings-nickname");
+    if (nick) nick.value = D.USER.name || (D.USER.email ? D.USER.email.split("@")[0] : "");
     // 接入端点卡片：实时从配置/同源 fallback 读取（rant 2026-08-19T20:37:37）
     applyEndpointUrls();
     const rawQ = $("#ak-search").value || "";
@@ -2309,6 +2312,13 @@
     }
   }
 
+  // 左下角用户芯片：真实昵称 + 头像首字符（rant 2026-08-22T00:01:52：去掉「阿零」硬编码）
+  function renderUserChip() {
+    const name = D.USER.name || (D.USER.email ? D.USER.email.split("@")[0] : "");
+    $("#side-name").textContent = name;
+    $("#side-avatar").textContent = name ? Array.from(name)[0] : "?";
+  }
+
   // 进入主界面（登录成功 / 会话恢复共用）
   function enterApp() {
     isGuest = false;
@@ -2317,6 +2327,7 @@
     $("#login-view").classList.add("hidden");
     $("#app").classList.remove("hidden");
     $("#side-balance").textContent = D.fmt(D.USER.balance);
+    renderUserChip();
     renderNav();
     // URL hash 路由：登录后恢复刷新前的视图（无 hash 则仪表盘）
     switchView(viewFromHash() || "dashboard");