diff --git a/src/main/resources/views/layouts/v4/baseLayout.html b/src/main/resources/views/layouts/v4/baseLayout.html
index dc9a561..5eb20f8 100644
--- a/src/main/resources/views/layouts/v4/baseLayout.html
+++ b/src/main/resources/views/layouts/v4/baseLayout.html
@@ -611,7 +611,8 @@
             /* 页脚样式 */
             .v4-footer {
                 background: var(--color-primary);
-                padding: 30px 0;
+                /* 新增第三行备案信息后收紧上下间距，保持蓝色底栏整体高度不变 */
+                padding: 18px 0;
             }
 
             .v4-footer-bottom {
@@ -629,6 +630,36 @@
                 color: #fff;
             }
 
+            .v4-footer-records {
+                display: flex;
+                align-items: center;
+                flex-wrap: wrap;
+                gap: 12px;
+                margin: 4px 0;
+                color: #fff;
+            }
+
+            .v4-footer-records img {
+                width: 16px;
+                height: 16px;
+                flex-shrink: 0;
+            }
+
+            .v4-footer-public-record {
+                display: inline-flex;
+                align-items: center;
+                gap: 6px;
+            }
+
+            .v4-footer-records a {
+                color: #fff;
+                text-decoration: none;
+            }
+
+            .v4-footer-records a:hover {
+                text-decoration: underline;
+            }
+
             .v4-footer-tech {
                 color: #fff;
             }
@@ -700,6 +731,13 @@
                 <div class="v4-footer-copyright">
                     <p>&copy; 2025 武汉地大三思科技有限公司. 保留所有权利.</p>
                     <p>ICP备案号：のICP备12345678号-1 | 版本号：v4.0.0</p>
+                    <div class="v4-footer-records">
+                        <span class="v4-footer-public-record">
+                            <img src="/assets/platform/img/v4/beian.png" alt="备案图标" />
+                            <a href="https://beian.mps.gov.cn/#/query/webSearch?code=32100302011718" rel="noreferrer" target="_blank">苏公网安备32100302011718号</a>
+                        </span>
+                        <a href="http://beian.miit.gov.cn/" rel="noreferrer" target="_blank">苏ICP备16057903号-1</a>
+                    </div>
                 </div>
                 <div class="v4-footer-tech">
                     <span>技术支持：</span>
@@ -717,7 +755,8 @@
                     var currentPath = getBaseSubAppPath()
                     var footer = $("#v4-footer")
 
-                    if (currentPath === "/platform/v4/home") {
+                    // 登录首次进入使用 /platform/home，导航返回首页使用 /platform/v4/home
+                    if (currentPath === "/platform/home" || currentPath === "/platform/v4/home") {
                         footer.show()
                     } else {
                         footer.hide()