diff --git a/public/js/app.js b/public/js/app.js
index dc8fffe..f8d316d 100644
--- a/public/js/app.js
+++ b/public/js/app.js
@@ -67,7 +67,7 @@ const App = {
     }
 
     if (page === 'install') { this.showPublic('install'); return; }
-    if (page === 'home') { this.showPublic('home', param); return; }
+    if (page === 'home') { this.showPublic('home', param); document.getElementById('top-auth').classList.add('hidden'); return; }
     if (page === 'login' || page === 'register' || page === 'forgot' || page === 'reset') { this.showPublic(page); return; }
     if (!Auth.logged()) { location.hash = '#/login'; return; }
 
diff --git a/public/js/pages/register.js b/public/js/pages/register.js
index 1708990..2ec7348 100644
--- a/public/js/pages/register.js
+++ b/public/js/pages/register.js
@@ -25,9 +25,9 @@ const RegisterPage = {
 
           ${this.captcha ? `
           <div class="form-group"><label>人机验证</label>
-            <div style="display:flex;align-items:center;gap:10px">
-              <div id="captcha-img" style="flex-shrink:0;border:1px solid var(--g200);border-radius:var(--r);overflow:hidden;cursor:pointer" onclick="RegisterPage.refreshCaptcha()" title="点击刷新">${this.captcha.svg}</div>
-              <input type="text" id="captcha-a" placeholder="输入图片字符" required style="flex:1;max-width:150px">
+            <div id="captcha-img" style="display:block;border:1px solid var(--g200);border-radius:var(--r);margin-bottom:8px;cursor:pointer;text-align:center" onclick="RegisterPage.refreshCaptcha()" title="点击刷新">${this.captcha.svg}</div>
+            <div style="display:flex;gap:8px">
+              <input type="text" id="captcha-a" placeholder="输入图片字符" required style="flex:1">
               <input type="hidden" id="captcha-id" value="${this.captcha.id}">
             </div>
           </div>` : ''}