style: 备案号字体改为白色

Co-Authored-By: Claude <noreply@anthropic.com>

admin-web-new/src/style/login.css

@@ -251,12 +251,12 @@ html.dark .login-header p {
 
 .login-icp-footer-mobile a {
   font-size: 13px;
-  color: #909399;
+  color: #fff;
   text-decoration: none;
 }
 
 .login-icp-footer-mobile a:hover {
-  color: #606266;
+  color: #ccc;
   text-decoration: underline;
 }
 

admin-web/src/views/login/index.vue

@@ -269,11 +269,11 @@ onMounted(() => {
 }
 .login-icp-footer a {
 	font-size: 13px;
-	color: #999;
+	color: #fff;
 	text-decoration: none;
 }
 .login-icp-footer a:hover {
-	color: #666;
+	color: #ccc;
 	text-decoration: underline;
 }
 </style>