diff --git a/admin-server/auth.go b/admin-server/auth.go
index 47f3e62..cd15d37 100644
--- a/admin-server/auth.go
+++ b/admin-server/auth.go
@@ -143,6 +143,8 @@ func safePortalRedirect(raw string) string {
 var portalLoginTemplate = template.Must(template.New("login").Parse(`<!doctype html>
 <html lang="zh-CN"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1">
 <title>{{.Title}} - 登录</title>
+<link rel="icon" type="image/svg+xml" href="/favicon.svg">
+<link rel="icon" href="/favicon.ico" sizes="any">
 <script>(function(){var s=localStorage.getItem('theme');var p=window.matchMedia('(prefers-color-scheme:dark)').matches;document.documentElement.setAttribute('data-theme',s||(p?'dark':'light'))})()</script>
 <style>
 /* 深浅色：默认跟随系统（prefers-color-scheme），手动切换后写入 localStorage。
diff --git a/portal/404.html b/portal/404.html
index 0f232f6..e642dd3 100644
--- a/portal/404.html
+++ b/portal/404.html
@@ -37,6 +37,8 @@
 .error-page p { color:var(--text-secondary); margin-bottom:28px; font-size:14px }
 .error-page .btn { margin:0 4px }
 </style>
+<link rel="icon" type="image/svg+xml" href="/favicon.svg">
+<link rel="icon" href="/favicon.ico" sizes="any">
 </head>
 <body>
 <div class="error-page">
diff --git a/portal/500.html b/portal/500.html
index bd180fc..79b6d97 100644
--- a/portal/500.html
+++ b/portal/500.html
@@ -36,6 +36,8 @@
 .error-page h1 { font-size:3rem; font-weight:800; margin-bottom:4px; color:var(--text-primary) }
 .error-page p { color:var(--text-secondary); margin-bottom:28px; font-size:14px }
 </style>
+<link rel="icon" type="image/svg+xml" href="/favicon.svg">
+<link rel="icon" href="/favicon.ico" sizes="any">
 </head>
 <body>
 <div class="error-page">
diff --git a/portal/web-icons/dashy-logo.png b/portal/web-icons/dashy-logo.png
new file mode 100644
index 0000000..0e73de6
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diff --git a/portal/web-icons/dashy-pwa_144x144.png b/portal/web-icons/dashy-pwa_144x144.png
new file mode 100644
index 0000000..21d2b62
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diff --git a/portal/web-icons/dashy-pwa_192x192.png b/portal/web-icons/dashy-pwa_192x192.png
new file mode 100644
index 0000000..7c3b809
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diff --git a/portal/web-icons/dashy-pwa_48x48.png b/portal/web-icons/dashy-pwa_48x48.png
new file mode 100644
index 0000000..48f1551
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diff --git a/portal/web-icons/dashy-pwa_512x512.png b/portal/web-icons/dashy-pwa_512x512.png
new file mode 100644
index 0000000..0e73de6
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diff --git a/portal/web-icons/dashy-pwa_72x72.png b/portal/web-icons/dashy-pwa_72x72.png
new file mode 100644
index 0000000..9417992
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diff --git a/portal/web-icons/dashy-pwa_96x96.png b/portal/web-icons/dashy-pwa_96x96.png
new file mode 100644
index 0000000..acef1dd
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