add public security.

src/shared/layout/default.vue

@@ -7,8 +7,17 @@ function goICP() {
   window.open("https://beian.miit.gov.cn", "_balnk")
 }
 
+function goPublicSecurity() {
+  window.open(
+    "https://beian.mps.gov.cn/#/query/webSearch?code=33100402331786",
+    "_balnk",
+  )
+}
+
 const route = useRoute()
-const hiddenICP = computed(() => ["problem", "contest problem"].includes(<string>route.name))
+const hiddenICP = computed(() =>
+  ["problem", "contest problem"].includes(<string>route.name),
+)
 </script>
 
 <template>
@@ -23,6 +32,12 @@ const hiddenICP = computed(() => ["problem", "contest problem"].includes(<string
     <Signup />
     <n-space v-if="!hiddenICP" justify="center" class="beian">
       <n-button text @click="goICP">浙ICP备2023044109号</n-button>
+      <div>
+        <img class="psIcon" src="/备案图标.png" alt="备案图标" />
+        <n-button text @click="goPublicSecurity">
+          浙公网安备33100402331786
+        </n-button>
+      </div>
     </n-space>
   </n-layout>
 </template>
@@ -39,4 +54,11 @@ const hiddenICP = computed(() => ["problem", "contest problem"].includes(<string
 .beian > a {
   text-decoration: none;
 }
+
+.psIcon {
+  width: 14px;
+  height: 14px;
+  transform: translateY(2px);
+  margin-right: 2px;
+}
 </style>