修复维护通知自适应布局与导航重复焦点

app/layouts/default.vue

@@ -137,6 +137,28 @@ var Ce = {
           O = useRoute(),
           k = useTheme_t(),
           A = useSiteConfig_t();
+        // 固定层共用实际维护条高度，避免换行、字体加载或窗口变化后仍按单行常量占位。
+        const maintenanceBanner = ref(null);
+        const bannerHeight = ref(0);
+        let bannerObserver;
+        watch(
+          maintenanceBanner,
+          (element) => {
+            bannerObserver?.disconnect();
+            const measure = () => {
+              bannerHeight.value = element
+                ? Math.ceil(element.getBoundingClientRect().height)
+                : 0;
+            };
+            measure();
+            if (element) {
+              bannerObserver = new ResizeObserver(measure);
+              bannerObserver.observe(element);
+            }
+          },
+          { flush: "post" },
+        );
+        onBeforeUnmount(() => bannerObserver?.disconnect());
         onMounted(() => {
           (A.load().catch(() => {}),
             w.isLoggedIn && !w.overview && w.fetchOverview().catch(() => {}),
@@ -548,6 +570,15 @@ var Ce = {
         return (
           useHead(() => ({
             title: `${$.value.at(-1) || `会员中心`} - ${A.siteName.value}`,
+            // 通知 Teleport 在 body，变量发布到 html；Unhead 随布局卸载逐属性清理，不影响主题样式。
+            htmlAttrs: {
+              style: {
+                "--console-header-height": "56px",
+                "--console-banner-height": `${A.maintenance.value ? bannerHeight.value : 0}px`,
+                "--console-top-offset":
+                  "calc(var(--console-header-height) + var(--console-banner-height))",
+              },
+            },
           })),
           // 导航、面包屑和账户/消息浮层来自同一布局状态；移动侧栏需保留焦点约束与滚动锁清理。
           (e, r) => {
@@ -591,25 +622,29 @@ var Ce = {
                     : createCommentVNode(``, !0),
                   unref(A).maintenance.value
                     ? (openBlock(),
-                      createElementBlock(`div`, Ce, [
-                        (r[6] ||= createElementVNode(
-                          `i`,
-                          {
-                            class: `pi pi-exclamation-triangle`,
-                          },
-                          null,
-                          -1,
-                        )),
-                        createElementVNode(
-                          `span`,
-                          null,
-                          toDisplayString(
-                            unref(A).config.value?.maintenance_mode_message ||
-                              `站点维护中，部分功能可能不可用。`,
+                      createElementBlock(
+                        `div`,
+                        { ...Ce, ref: maintenanceBanner },
+                        [
+                          (r[6] ||= createElementVNode(
+                            `i`,
+                            {
+                              class: `pi pi-exclamation-triangle`,
+                            },
+                            null,
+                            -1,
+                          )),
+                          createElementVNode(
+                            `span`,
+                            null,
+                            toDisplayString(
+                              unref(A).config.value?.maintenance_mode_message ||
+                                `站点维护中，部分功能可能不可用。`,
+                            ),
+                            1,
                           ),
-                          1,
-                        ),
-                      ]))
+                        ],
+                      ))
                     : createCommentVNode(``, !0),
                   createElementVNode(
                     `aside`,