diff --git a/assets/beian-police.png b/assets/beian-police.png
new file mode 100644
index 0000000..2804fb6
Binary files /dev/null and b/assets/beian-police.png differ
diff --git a/index.html b/index.html
index 99570c7..8ce6b98 100644
--- a/index.html
+++ b/index.html
@@ -713,6 +713,8 @@
         .footer-inner > .footer-record-company { display: none; }
         .footer-signal { color: var(--text-faint); font: 550 9px/1 var(--mono); letter-spacing: .1em; }
         .footer-record { color: var(--text-faint); font-size: 12px; transition: color .2s ease; }
+        .footer-record-police { display: inline-flex; align-items: center; gap: 4px; }
+        .footer-record-police img { width: 18px; height: 20px; object-fit: contain; }
         .footer-record-company { margin-left: 8px; }
         .footer-record:hover { color: var(--cyan); }
 
@@ -1166,6 +1168,7 @@
             <div class="footer-company">
                 <span class="footer-copyright">© <span id="year-copyright">2026</span> <span data-i18n="footer_company">Roncarve Technology</span>. All Rights Reserved.</span>
                 <a class="footer-record footer-record-company" href="https://beian.miit.gov.cn/" target="_blank" rel="noopener noreferrer">琼ICP备2026011549号</a>
+                <a class="footer-record footer-record-company footer-record-police" href="https://www.beian.gov.cn/portal/registerSystemInfo?recordcode=46010002001924" target="_blank" rel="noopener noreferrer"><img src="assets/beian-police.png" alt="公安备案图标">琼公网安备46010002001924号</a>
             </div>
             <a class="footer-record footer-record-company" href="https://beian.miit.gov.cn/" target="_blank" rel="noopener noreferrer">琼ICP备2026011549号</a>
             <span>© <span id="year">2026</span> <span data-i18n="footer_company">海南荣刻科技有限公司</span></span>