diff --git a/README.md b/README.md
index 2630402..de6c22a 100644
--- a/README.md
+++ b/README.md
@@ -74,10 +74,11 @@ ClassHelper是给中小学班级用的一套信息管理系统。<br/>
 
 - [x] 通知、新作业、叫人都会上岛：先是胶囊，点开是详情卡
 - [x] 多条消息展开为竖排列表，按重要程度排序，放不下时提示去应用内看
-- [x] **上课时段不打扰**：普通通知暂存到下课再弹；紧急通知与叫人立刻弹
+- [x] **默认提醒模式上课时段不打扰**：普通通知暂存到下课再弹；紧急通知与叫人立刻弹
 - [x] 尺寸、圆角、字号、主题色、停靠位置（顶部 / 底部 × 左 / 中 / 右）都可以调
 - [x] 纯黑 / 毛玻璃 / 主题色渐变三种底
 - [x] 触摸屏（希沃白板这类一体机）也能点开
+- [x] 可选常驻岛：自定义收起与无通知展开内容，收到消息显示铃铛，点击查看通知
 
 ### 部署与运维
 
diff --git a/docs/dev/20261017-implementation.md b/docs/dev/20261017-implementation.md
index f884474..cf7bc10 100644
--- a/docs/dev/20261017-implementation.md
+++ b/docs/dev/20261017-implementation.md
@@ -64,6 +64,26 @@
 
 本轮视觉回归通过 102/102，随后补充的岛宽修正与展开可见性检查通过后台 28/28，并通过二次启动。后台最终几何检查先等待原渲染器的形变兜底和尺寸防抖完成，避免在隐藏窗口的中间动画帧判断最终尺寸。客户端构建、类型检查、lint、改动文件格式检查及文档严格构建均通过。
 
+## 可选常驻岛
+
+本机 `islandLayout.residentEnabled` 默认关闭，仅在 custom 模式生效。开启后，现有方案 rows 作为收起内容，新增 expandedRows 保存没有通知时点击展开的内容；两套内容在同一编辑器中切换编辑，随方案复制、导入导出和本机配置一起保存。旧配置自动补齐展开布局，不改变原来的常驻选择。
+
+按本次产品要求，常驻模式中普通、紧急和叫人消息都先提示右侧铃铛及去重后的数量，点击常驻内容、铃铛或按 Enter/空格才展开原通知列表；上课时允许主动查看。没有消息时展开自定义内容，收起、处理完成及通知撤回后保留常驻岛。经典模式与关闭常驻的自定义模式继续使用原提醒规则。
+
+铃铛固定占位，避免收消息时内容横移。普通组件默认继承行的垂直居中对齐；原先无条件 align-self:stretch 会使不同字号文字从顶部排版，现只在父容器有宽度且明确配置时应用覆盖对齐。时钟采用等宽数字，分隔符保持固定线高，展开页标题与收起按钮在同一基准线上。设置页重新获得焦点时读回本机配置，避免编辑器内改常驻选项后主设置页显示旧值。
+
+新增隔离检查覆盖旧配置兼容、空闲常驻、铃铛与文本对齐、无消息展开/收起、普通与紧急消息点击展示、同 id 去重、课堂中查看、键盘展开、处理完成后的窗口几何、空闲展开时新消息提示、两套内容独立编辑和关闭常驻恢复经典模式。截图留档于 `.cache/resident-island-shots/`。
+
+### 再次核对 ClassIsland 尺寸与避让设置
+
+2026-10-17 重新从 GitHub master 读取 [经典主题](https://github.com/ClassIsland/ClassIsland/blob/master/ClassIsland/XamlThemes/ClassicTheme/Styles.axaml)、[Fluent 主题](https://github.com/ClassIsland/ClassIsland/blob/master/ClassIsland/XamlThemes/FluentTheme/Styles.axaml)、[默认设置](https://github.com/ClassIsland/ClassIsland/blob/master/ClassIsland/Models/Settings.cs)、[窗口设置页](https://github.com/ClassIsland/ClassIsland/blob/master/ClassIsland/Views/SettingPages/WindowSettingsPage.axaml)、[外观设置页](https://github.com/ClassIsland/ClassIsland/blob/master/ClassIsland/Views/SettingPages/AppearanceSettingsPage.axaml)及 [行样式](https://github.com/ClassIsland/ClassIsland/blob/master/ClassIsland/Controls/MainWindowLine.axaml)。主题行高为 40、内容左右留白 12；四档字体为 14/16/18/20，时钟用强调字号 18；默认圆角 8、背景不透明度 0.5、缩放 1、行距 5。共享 CLASSISLAND_ISLAND_METRICS 作为唯一尺寸与默认值表，常驻行移除上下 12px 留白。缩放、圆角与背景透明度范围也与上游一致。
+
+原生窗口复用现有光标轮询，在常驻背景移入时降低到 5% 不透明度并开启点击穿透，移出恢复；支持反转及关闭。保留独立的右侧交互入口：无消息时是小展开箭头，有消息时显示铃铛与数量。它不触发避让，避免和此前点击查看通知的要求冲突；编辑、展开和触笔/触摸后 1 秒内暂停避让。这是为本产品保留交互入口的明确适配，上游原始主界面默认整体穿透。未引入 RawInput/.NET 依赖，轮询方式对应上游默认 UseRawInput=false。窗口隐藏或淡化不清空消息队列。
+
+补充后台检查实测常驻行 40px、原生 setOpacity 的 5% 比例、点击穿透状态、移出恢复、反转/关闭淡化、右侧入口与触摸宽限期。源码缓存和截图分别留在 `.cache/classisland-current/`、`.cache/resident-island-ci-shots/`。
+
+最终构建视觉验收 118/118，随后后台重启检查 43/43、单实例锁和配置句柄释放通过；全仓类型、lint、构建与产物凭据门禁、格式及文档严格检查通过。最终截图为 `.cache/resident-island-ci-final-shots/`，验收日志为 `.cache/resident-island-ci-visual-final.log`。本次不修改业务数据库、不打包或推送发布。
+
 ## 十项自检
 
 1. 第三周周三第二节：ClassPlan 的规则与 ClassPlanEntry 的 timeLayoutItemId → `resolveActiveClassPlan` → `loadTermContext/resolveCurrentWeek` → `projectPlan` → `/schedules/active-week` → `refreshIslandSchedule` 的整周 IndexedDB 缓存 → `recomputeClassState` 发送当天课程 → `ComponentNode.vue` 课程表组件。
diff --git a/docs/reference.md b/docs/reference.md
index e00503f..944e837 100644
--- a/docs/reference.md
+++ b/docs/reference.md
@@ -1583,6 +1583,13 @@ makensis 临时目录、ClassIsland 路径与日志编码等）。这里只列
 
 天气组件本轮不做：没有可离线使用的数据源，验收不依赖外网。
 自定义组件栏位于灵动岛内部，提醒内容也在同一个岛体内展开，不再嵌套另一张带底色的岛卡片。
+可在「设置 → 灵动岛」选择常驻岛：收起内容与无通知展开内容分别编辑，并随方案一起导入导出。
+常驻模式的新消息（含紧急消息）先亮铃铛和数量，点击岛体或铃铛查看原通知列表；上课时也可主动查看。
+没有待处理消息时点击岛体，展示自定义的空闲展开页；处理完消息后回到常驻内容。关闭常驻后使用原提醒规则。
+铃铛在右侧预留固定空间，收到消息时内容不横移；默认组件按垂直中心对齐，时间使用等宽数字。
+常驻外观重新按 ClassIsland 源码对齐：单行基准高 40 px、左右留白 12 px、四档字号 14/16/18/20、时钟使用强调字号 18 px；默认缩放 1×、圆角 8 px、背景不透明度 0.5、行间距 5 px。
+窗口设置沿用「指针移入淡化」与「反转指针移入淡化」；普通背景淡化至 5% 并穿透点击，移出恢复。铃铛/展开按钮、编辑模式、已经展开的内容及触摸操作短暂宽限期保持可交互。
+界面缩放范围 0.75–2.5×，圆角 0–20 px，背景不透明度 0–1；整体外观可一键恢复 ClassIsland 默认值。
 编辑器左侧按用途添加组件、中央预览岛内排列、右侧只显示当前对象的设置；方案操作收在顶部菜单。
 主设置页选择经典或自定义灵动岛，自定义模式的组件尺寸、配色在编辑器中调整，主设置页保留位置与提醒选项。
 迁移保留旧 Schedule 作为审计来源；新门面只写新模型。重复占用同一时间点的旧行无法同时成为一节课，
diff --git a/packages/desktop-client/src/island/ComponentNode.vue b/packages/desktop-client/src/island/ComponentNode.vue
index 22aed04..a76652b 100644
--- a/packages/desktop-client/src/island/ComponentNode.vue
+++ b/packages/desktop-client/src/island/ComponentNode.vue
@@ -17,6 +17,11 @@ const props = defineProps<{
   parentHasWidth?: boolean;
 }>();
 const emit = defineEmits<{ select: [id: string]; drag: [event: PointerEvent, id: string] }>();
+function select(event: MouseEvent) {
+  if (!props.editing) return;
+  event.stopPropagation();
+  emit('select', props.node.id);
+}
 const container = computed(() => ['group', 'stack', 'slide', 'rolling'].includes(props.node.kind));
 const current = computed(() => {
   const d = new Date(props.now),
@@ -101,7 +106,7 @@ const style = computed<CSSProperties>(() => {
     width: n.advanced.width ? `${n.advanced.width}px` : undefined,
     maxWidth: n.advanced.maxWidth ? `${n.advanced.maxWidth}px` : undefined,
     alignSelf: !props.parentHasWidth
-      ? 'stretch'
+      ? undefined
       : ({ stretch: 'stretch', start: 'flex-start', center: 'center', end: 'flex-end' } as const)[
           n.advanced.align
         ],
@@ -114,8 +119,8 @@ const style = computed<CSSProperties>(() => {
     '--emphasized': override ? `${a.emphasizedFontSize}px` : undefined,
     '--large': override ? `${a.largeFontSize}px` : undefined,
     '--rolling-duration': `${Math.max(1, 200 / n.settings.speed)}s`,
-    flexDirection: n.settings.direction === 'vertical' ? 'column' : 'row',
-    gap: `${n.settings.gap}px`,
+    flexDirection: container.value ? (n.settings.direction === 'vertical' ? 'column' : 'row') : undefined,
+    gap: container.value ? `${n.settings.gap}px` : undefined,
     display: container.value ? 'flex' : undefined,
   };
 });
@@ -127,7 +132,7 @@ const style = computed<CSSProperties>(() => {
     :class="[{ selected: editing && selectedId === node.id, container, 'node-editing': editing }, node.kind]"
     :style="style"
     :data-node="node.id"
-    @click.stop="editing && emit('select', node.id)"
+    @click="select"
   >
     <button
       v-if="editing"
@@ -168,7 +173,7 @@ const style = computed<CSSProperties>(() => {
       <slot v-if="node.id === alertNodeId" name="alerts" />
       <span v-else-if="editing">{{ ISLAND_COMPONENT_LABELS[node.kind] }}内容组件</span>
     </template>
-    <span v-else :class="{ large: node.kind === 'clock', emphasized: node.kind === 'countdown' }">
+    <span v-else :class="{ emphasized: node.kind === 'clock' || node.kind === 'countdown' }">
       {{ content }}
     </span>
   </div>
@@ -181,6 +186,34 @@ const style = computed<CSSProperties>(() => {
   flex-shrink: 0;
   position: relative;
 }
+.component-node:not(.node-editing) {
+  line-height: 1.4;
+}
+.clock {
+  font-variant-numeric: tabular-nums;
+  white-space: nowrap;
+}
+.date,
+.countdown {
+  white-space: nowrap;
+}
+.schedule > div {
+  display: flex;
+  flex-direction: column;
+  gap: 3px;
+}
+.schedule > div + div {
+  margin-top: 8px;
+}
+.separator > span {
+  display: block;
+  width: 1px;
+  height: 24px;
+  overflow: hidden;
+  background: currentColor;
+  font-size: 0;
+  opacity: 0.25;
+}
 .container {
   align-items: center;
 }
diff --git a/packages/desktop-client/src/island/CustomIsland.vue b/packages/desktop-client/src/island/CustomIsland.vue
index 5add0de..e9500b8 100644
--- a/packages/desktop-client/src/island/CustomIsland.vue
+++ b/packages/desktop-client/src/island/CustomIsland.vue
@@ -2,6 +2,7 @@
 import { computed, nextTick, onMounted, onUnmounted, ref, watch, type CSSProperties } from 'vue';
 import {
   ISLAND_COMPONENT_LABELS,
+  CLASSISLAND_ISLAND_METRICS as CI,
   ISLAND_SHADOW_PAD,
   islandNode,
   normalizeIslandLayouts,
@@ -37,13 +38,68 @@ watch(
   { deep: true },
 );
 const scheme = computed(() => draft.value.schemes.find((s) => s.id === draft.value.activeSchemeId)!);
+const editingSurface = ref<'compact' | 'expanded'>('compact');
+const pendingCount = computed(
+  () => new Set([props.state.active?.id, ...props.state.queued.map((item) => item.id)].filter(Boolean)).size,
+);
+const residentCompact = computed(
+  () => draft.value.residentEnabled && !props.editing && props.state.mode !== 'expanded',
+);
+const idleExpanded = computed(
+  () =>
+    draft.value.residentEnabled &&
+    !props.editing &&
+    props.state.mode === 'expanded' &&
+    pendingCount.value === 0,
+);
+const rows = computed(() =>
+  (props.editing ? editingSurface.value === 'expanded' : idleExpanded.value)
+    ? scheme.value.expandedRows
+    : scheme.value.rows,
+);
+function setSurface(surface: 'compact' | 'expanded') {
+  editingSurface.value = surface;
+  selectedId.value = '';
+  selectedRowId.value = '';
+  panel.value = 'appearance';
+}
+function openResident(event: Event) {
+  if (!residentCompact.value || (event.target as HTMLElement).closest('button, a, input, select, textarea'))
+    return;
+  window.island?.sendAction('expand');
+}
+function residentKey(event: KeyboardEvent) {
+  if (event.target !== event.currentTarget) return;
+  if (event.key === 'Enter' || event.key === ' ') {
+    event.preventDefault();
+    openResident(event);
+  }
+}
+function expandResident() {
+  window.island?.sendAction('expand');
+}
+function collapseResident() {
+  window.island?.sendAction('collapse');
+}
+function onPointerDown(event: PointerEvent) {
+  if (event.pointerType === 'touch' || event.pointerType === 'pen') window.island?.noteResidentTouch();
+}
+function restoreClassIslandAppearance() {
+  Object.assign(scheme.value, {
+    scale: CI.scale,
+    color: '#000000',
+    opacity: CI.opacity,
+    radius: CI.radius,
+    spacing: CI.rowSpacing,
+  });
+  for (const row of [...scheme.value.rows, ...scheme.value.expandedRows]) row.gap = 12;
+  save();
+}
 const selectedId = ref(''),
   selectedKind = ref<IslandComponentKind>('clock');
 const panel = ref<'component' | 'row' | 'appearance'>('appearance');
 const selectedRowId = ref('');
-const activeRow = computed(
-  () => scheme.value.rows.find((r) => r.id === selectedRowId.value) || scheme.value.rows[0]!,
-);
+const activeRow = computed(() => rows.value.find((r) => r.id === selectedRowId.value) || rows.value[0]!);
 const componentGroups = [
   { name: '日常信息', kinds: ['clock', 'date', 'schedule', 'countdown', 'text', 'separator'] },
   { name: '消息提醒', kinds: ['notification', 'homework', 'call'] },
@@ -75,14 +131,14 @@ function allNodes(nodes: IslandComponentNode[]): IslandComponentNode[] {
   return nodes.flatMap((n) => [n, ...allNodes(n.children)]);
 }
 const selected = computed(() =>
-  scheme.value.rows.flatMap((r) => allNodes(r.nodes)).find((n) => n.id === selectedId.value),
+  rows.value.flatMap((r) => allNodes(r.nodes)).find((n) => n.id === selectedId.value),
 );
 const alertRow = computed(
   () =>
-    scheme.value.rows.find((r) => r.main && r.allowNotifications) ||
-    scheme.value.rows.find((r) => r.allowNotifications),
+    rows.value.find((r) => r.main && r.allowNotifications) || rows.value.find((r) => r.allowNotifications),
 );
 const alertNodeId = computed(() => {
+  if (residentCompact.value || idleExpanded.value) return '';
   const kind = props.state.active?.kind ?? 'notification';
   return (
     (alertRow.value &&
@@ -90,7 +146,13 @@ const alertNodeId = computed(() => {
     ''
   );
 });
-const hasMessage = computed(() => props.state.mode !== 'hidden' && Boolean(props.state.active));
+const hasMessage = computed(
+  () =>
+    props.state.mode !== 'hidden' &&
+    Boolean(props.state.active) &&
+    (!draft.value.residentEnabled || props.state.mode === 'expanded') &&
+    !props.editing,
+);
 const shellStyle = computed<CSSProperties>(() => ({
   width: viewport.value.width ? `${viewport.value.width}px` : 'max-content',
   minHeight: !props.editing && viewport.value.height ? `${viewport.value.height}px` : undefined,
@@ -103,8 +165,17 @@ const shellStyle = computed<CSSProperties>(() => ({
     Math.round(scheme.value.opacity * 255)
       .toString(16)
       .padStart(2, '0'),
-  '--custom-radius': `${scheme.value.radius}px`,
+  '--custom-radius': `${scheme.value.radius * (draft.value.residentEnabled ? scheme.value.scale : 1)}px`,
   '--custom-row-gap': `${scheme.value.spacing}px`,
+  ...(draft.value.residentEnabled
+    ? {
+        '--secondary': `${CI.secondaryFontSize}px`,
+        '--emphasized': `${CI.emphasizedFontSize}px`,
+        '--large': `${CI.largeFontSize}px`,
+        '--resident-height': `${CI.rowHeight}px`,
+        '--resident-padding': `${CI.horizontalPadding * scheme.value.scale}px`,
+      }
+    : {}),
   gap: `${scheme.value.spacing}px`,
 }));
 function id() {
@@ -117,7 +188,7 @@ function save() {
   savedAt.value = '已自动保存';
 }
 function addRow(after: number) {
-  scheme.value.rows.splice(after + 1, 0, {
+  rows.value.splice(after + 1, 0, {
     id: id(),
     name: '新主界面行',
     main: false,
@@ -125,7 +196,7 @@ function addRow(after: number) {
     gap: 8,
     nodes: [],
   });
-  selectRow(scheme.value.rows[after + 1]!.id);
+  selectRow(rows.value[after + 1]!.id);
   save();
 }
 function add(kind = selectedKind.value, row = activeRow.value) {
@@ -136,7 +207,7 @@ function add(kind = selectedKind.value, row = activeRow.value) {
   save();
 }
 function findList(nodeId: string, nodes?: IslandComponentNode[]): IslandComponentNode[] | null {
-  for (const list of nodes ? [nodes] : scheme.value.rows.map((r) => r.nodes)) {
+  for (const list of nodes ? [nodes] : rows.value.map((r) => r.nodes)) {
     if (list.some((n) => n.id === nodeId)) return list;
     for (const n of list) {
       const found = findList(nodeId, n.children);
@@ -182,7 +253,7 @@ function newScheme() {
   const copy = JSON.parse(JSON.stringify(scheme.value));
   copy.id = id();
   copy.name = name;
-  for (const r of copy.rows) {
+  for (const r of [...copy.rows, ...copy.expandedRows]) {
     r.id = id();
     for (const n of allNodes(r.nodes)) n.id = id();
   }
@@ -256,16 +327,16 @@ function drop() {
   if (!drag) return;
   const moving = drag;
   drag = null;
-  const row = scheme.value.rows.find((r) => r.id === moving.rowId);
+  const row = rows.value.find((r) => r.id === moving.rowId);
   if (!row) return;
   if (moving.type === 'library') {
     add(moving.kind, row);
     return;
   }
   if (moving.type === 'row') {
-    const from = scheme.value.rows.findIndex((r) => r.id === moving.id),
-      to = scheme.value.rows.indexOf(row);
-    if (from >= 0) scheme.value.rows.splice(to, 0, scheme.value.rows.splice(from, 1)[0]!);
+    const from = rows.value.findIndex((r) => r.id === moving.id),
+      to = rows.value.indexOf(row);
+    if (from >= 0) rows.value.splice(to, 0, rows.value.splice(from, 1)[0]!);
     save();
     return;
   }
@@ -316,6 +387,10 @@ function measure() {
             parseFloat(padding?.paddingBottom || '0'),
         ),
       });
+      const control = shell.value?.querySelector('.resident-bell')?.getBoundingClientRect();
+      window.island?.reportResidentControl(
+        control ? { x: control.x, y: control.y, width: control.width, height: control.height } : null,
+      );
     }
   }, 120);
 }
@@ -336,6 +411,7 @@ onUnmounted(() => {
 <template>
   <div
     :class="editing ? 'layout-editor' : 'custom-window'"
+    @pointerdown.capture="onPointerDown"
     @pointermove="panMove"
     @pointerup="
       drop();
@@ -409,7 +485,7 @@ onUnmounted(() => {
         <label class="field">
           添加到
           <select :value="activeRow.id" @change="selectedRowId = ($event.target as HTMLSelectElement).value">
-            <option v-for="row in scheme.rows" :key="row.id" :value="row.id">{{ row.name }}</option>
+            <option v-for="row in rows" :key="row.id" :value="row.id">{{ row.name }}</option>
           </select>
         </label>
         <button class="primary-button wide-button" @click="add()">
@@ -419,7 +495,15 @@ onUnmounted(() => {
     </aside>
     <main :class="{ canvas: editing }" @pointerdown="panStart">
       <div v-if="editing" class="canvas-toolbar">
-        <span>岛内预览</span>
+        <nav v-if="draft.residentEnabled" class="surface-tabs" aria-label="编辑常驻岛内容">
+          <button :class="{ active: editingSurface === 'compact' }" @click="setSurface('compact')">
+            收起时
+          </button>
+          <button :class="{ active: editingSurface === 'expanded' }" @click="setSurface('expanded')">
+            无通知展开时
+          </button>
+        </nav>
+        <span v-else>岛内预览</span>
         <div>
           <button
             :class="{ active: panel === 'appearance' }"
@@ -447,36 +531,78 @@ onUnmounted(() => {
         <div
           ref="shell"
           class="custom-card"
-          :class="{ separated: scheme.separated, 'has-alert': hasMessage }"
+          :class="{ separated: scheme.separated, 'has-alert': hasMessage, 'resident-size': residentCompact }"
+          :role="residentCompact ? 'button' : undefined"
+          :tabindex="residentCompact ? 0 : undefined"
+          :aria-label="
+            residentCompact ? (pendingCount ? `查看 ${pendingCount} 条通知` : '展开常驻岛') : undefined
+          "
+          :aria-expanded="draft.residentEnabled && !editing ? state.mode === 'expanded' : undefined"
+          @click="openResident"
+          @keydown="residentKey"
           :data-priority="hasMessage ? state.active?.priority : undefined"
           :style="[shellStyle, editing ? { width: 'max-content', maxWidth: 'none', maxHeight: 'none' } : {}]"
         >
-          <div ref="inner" class="custom-inner" :style="{ zoom: scheme.scale }">
-            <section
-              v-for="row in scheme.rows"
-              :key="row.id"
-              :data-row="row.id"
-              class="layout-row"
-              :class="{ 'row-selected': editing && selectedRowId === row.id, 'row-editing': editing }"
-              :style="{ '--row-gap': `${row.gap}px` }"
-            >
-              <div v-if="editing" class="row-tools">
-                <button class="row-drag" aria-label="拖动行" @pointerdown="startDrag($event, 'row', row.id)">
-                  ⠿
-                </button>
-                <button class="row-name" @click="selectRow(row.id)">
-                  {{ row.name }}
-                  <span v-if="row.main">主要行</span>
-                </button>
-                <button class="row-settings" :aria-label="`${row.name}设置`" @click="selectRow(row.id)">
-                  行设置
-                </button>
-              </div>
-              <div class="row-content" @click.self="editing && selectRow(row.id)">
-                <div class="row-components">
+          <div
+            ref="inner"
+            class="custom-inner"
+            :class="{ 'resident-compact': residentCompact }"
+            :style="{ zoom: scheme.scale }"
+          >
+            <header v-if="idleExpanded" class="resident-panel-heading">
+              <span>常驻岛</span>
+              <button aria-label="收起常驻岛" @click.stop="collapseResident">收起 ↑</button>
+            </header>
+            <div class="layout-rows">
+              <section
+                v-for="row in rows"
+                :key="row.id"
+                :data-row="row.id"
+                class="layout-row"
+                :class="{ 'row-selected': editing && selectedRowId === row.id, 'row-editing': editing }"
+                :style="{ '--row-gap': `${row.gap}px` }"
+              >
+                <div v-if="editing" class="row-tools">
+                  <button
+                    class="row-drag"
+                    aria-label="拖动行"
+                    @pointerdown="startDrag($event, 'row', row.id)"
+                  >
+                    ⠿
+                  </button>
+                  <button class="row-name" @click="selectRow(row.id)">
+                    {{ row.name }}
+                    <span v-if="row.main">主要行</span>
+                  </button>
+                  <button class="row-settings" :aria-label="`${row.name}设置`" @click="selectRow(row.id)">
+                    行设置
+                  </button>
+                </div>
+                <div class="row-content" @click.self="editing && selectRow(row.id)">
+                  <div class="row-components">
+                    <ComponentNode
+                      v-for="n in row.nodes.filter(
+                        (n) => !['notification', 'homework', 'call'].includes(n.kind),
+                      )"
+                      :key="n.id"
+                      :node="n"
+                      :state="state"
+                      :now="now"
+                      :schedules="schedules"
+                      :editing="editing"
+                      :selected-id="selectedId"
+                      :alert-node-id="alertNodeId"
+                      @select="selectNode"
+                      @drag="(e, id) => startDrag(e, 'node', id)"
+                    >
+                      <template #alerts>
+                        <div id="custom-alert-host" :ref="hostRef" v-show="hasMessage" />
+                      </template>
+                    </ComponentNode>
+                  </div>
                   <ComponentNode
-                    v-for="n in row.nodes.filter(
-                      (n) => !['notification', 'homework', 'call'].includes(n.kind),
+                    v-for="n in row.nodes.filter((n) =>
+                      ['notification', 'homework', 'call'].includes(n.kind),
                     )"
                     :key="n.id"
                     :node="n"
@@ -493,39 +619,44 @@ onUnmounted(() => {
                       <div id="custom-alert-host" :ref="hostRef" v-show="hasMessage" />
                     </template>
                   </ComponentNode>
+                  <div
+                    v-if="row.id === alertRow?.id && !alertNodeId"
+                    id="custom-alert-host"
+                    :ref="hostRef"
+                    v-show="hasMessage"
+                  />
+                  <span v-if="editing && !row.nodes.length" class="empty-row">拖入组件，或从左侧添加</span>
                 </div>
-                <ComponentNode
-                  v-for="n in row.nodes.filter((n) => ['notification', 'homework', 'call'].includes(n.kind))"
-                  :key="n.id"
-                  :node="n"
-                  :state="state"
-                  :now="now"
-                  :schedules="schedules"
-                  :editing="editing"
-                  :selected-id="selectedId"
-                  :alert-node-id="alertNodeId"
-                  @select="selectNode"
-                  @drag="(e, id) => startDrag(e, 'node', id)"
-                >
-                  <template #alerts>
-                    <div id="custom-alert-host" :ref="hostRef" v-show="hasMessage" />
-                  </template>
-                </ComponentNode>
-                <div
-                  v-if="row.id === alertRow?.id && !alertNodeId"
-                  id="custom-alert-host"
-                  :ref="hostRef"
-                  v-show="hasMessage"
-                />
-                <span v-if="editing && !row.nodes.length" class="empty-row">拖入组件，或从左侧添加</span>
-              </div>
-            </section>
+              </section>
+            </div>
+            <button
+              v-if="residentCompact"
+              class="resident-bell"
+              :class="{ 'bell-empty': !pendingCount }"
+              :aria-label="pendingCount ? `查看 ${pendingCount} 条通知` : '展开常驻岛'"
+              @click.stop="expandResident"
+            >
+              <ComponentIcon v-if="pendingCount" kind="notification" />
+              <svg
+                v-else
+                viewBox="0 0 24 24"
+                width="18"
+                height="18"
+                fill="none"
+                stroke="currentColor"
+                stroke-width="1.6"
+                aria-hidden="true"
+              >
+                <path d="m8 10 4 4 4-4" />
+              </svg>
+              <span v-if="pendingCount">{{ pendingCount > 99 ? '99+' : pendingCount }}</span>
+            </button>
           </div>
         </div>
         <button
           v-if="editing"
           class="add-row-button"
-          @click="addRow(scheme.rows.findIndex((r) => r.id === activeRow.id))"
+          @click="addRow(rows.findIndex((r) => r.id === activeRow.id))"
         >
           ＋ 在下方新建主界面行
         </button>
@@ -584,7 +715,7 @@ onUnmounted(() => {
               class="wide-button"
               :disabled="activeRow.main"
               @click="
-                scheme.rows.forEach((r) => (r.main = r.id === activeRow.id));
+                rows.forEach((r) => (r.main = r.id === activeRow.id));
                 save();
               "
             >
@@ -593,14 +724,12 @@ onUnmounted(() => {
             <p class="field-hint">提醒优先显示在主要行内；若该行禁用提醒，则显示在下一条允许提醒的行内。</p>
           </section>
           <section class="setting-section">
-            <button class="wide-button" @click="addRow(scheme.rows.indexOf(activeRow))">
-              在此行下方新增行
-            </button>
+            <button class="wide-button" @click="addRow(rows.indexOf(activeRow))">在此行下方新增行</button>
             <button
               class="wide-button danger-button"
-              :disabled="scheme.rows.length < 2"
+              :disabled="rows.length < 2"
               @click="
-                scheme.rows.splice(scheme.rows.indexOf(activeRow), 1);
+                rows.splice(rows.indexOf(activeRow), 1);
                 selectedRowId = '';
                 save();
               "
@@ -614,9 +743,43 @@ onUnmounted(() => {
         <div class="inspector-heading">
           <span class="eyebrow">方案设置</span>
           <h2>整体外观</h2>
-          <p>所有组件共用一个灵动岛</p>
+          <p>
+            {{
+              draft.residentEnabled
+                ? editingSurface === 'compact'
+                  ? '正在编辑收起时的常驻内容'
+                  : '正在编辑没有通知时的展开内容'
+                : '所有组件共用一个灵动岛'
+            }}
+          </p>
         </div>
         <div class="inspector-body" @change="save">
+          <section class="setting-section">
+            <label class="toggle-field">
+              <span>常驻岛</span>
+              <input type="checkbox" v-model="draft.residentEnabled" @change="setSurface('compact')" />
+            </label>
+            <p class="field-hint">
+              开启后始终显示收起内容，收到消息时显示铃铛，点击查看通知；没有通知时展开另一套自定义内容。
+            </p>
+          </section>
+          <section v-if="draft.residentEnabled" class="setting-section">
+            <h3>ClassIsland 窗口设置</h3>
+            <p class="field-hint">
+              基准岛高 40 px，默认缩放 1×；正文 16、时钟 18 px。背景移入淡化并穿透，右侧展开按钮保持可用。
+            </p>
+            <label class="toggle-field">
+              <span>指针移入淡化</span>
+              <input type="checkbox" v-model="draft.pointerFadeEnabled" />
+            </label>
+            <label v-if="draft.pointerFadeEnabled" class="toggle-field">
+              <span>反转指针移入淡化</span>
+              <input type="checkbox" v-model="draft.pointerFadeReversed" />
+            </label>
+            <button class="wide-button" @click="restoreClassIslandAppearance">
+              恢复 ClassIsland 默认外观
+            </button>
+          </section>
           <section class="setting-section">
             <h3>当前方案</h3>
             <label class="field">
@@ -624,8 +787,14 @@ onUnmounted(() => {
               <input v-model="scheme.name" />
             </label>
             <label class="field inline-field">
-              内容缩放
-              <input type="number" v-model.number="scheme.scale" min="0.5" max="3" step="0.1" />
+              界面缩放
+              <input
+                type="number"
+                v-model.number="scheme.scale"
+                :min="draft.residentEnabled ? CI.scaleMin : 0.5"
+                :max="draft.residentEnabled ? CI.scaleMax : 3"
+                step="0.05"
+              />
             </label>
           </section>
           <section class="setting-section">
@@ -641,20 +810,38 @@ onUnmounted(() => {
             <label class="field">
               背景透明度
               <div class="range-field">
-                <input type="range" v-model.number="scheme.opacity" min="0.1" max="1" step="0.05" />
+                <input
+                  type="range"
+                  v-model.number="scheme.opacity"
+                  :min="draft.residentEnabled ? 0 : 0.1"
+                  max="1"
+                  step="0.05"
+                />
                 <output>{{ Math.round(scheme.opacity * 100) }}%</output>
               </div>
             </label>
             <label class="field inline-field">
               圆角
-              <input type="number" v-model.number="scheme.radius" min="0" max="100" />
+              <input
+                type="number"
+                v-model.number="scheme.radius"
+                min="0"
+                :max="draft.residentEnabled ? CI.radiusMax : 100"
+                step="0.5"
+              />
             </label>
           </section>
           <section class="setting-section">
             <h3>多行布局</h3>
             <label class="field inline-field">
               行间距
-              <input type="number" v-model.number="scheme.spacing" min="0" max="80" />
+              <input
+                type="number"
+                v-model.number="scheme.spacing"
+                min="0"
+                :max="draft.residentEnabled ? CI.rowSpacingMax : 100"
+                step="5"
+              />
             </label>
             <label class="toggle-field">
               <span>各行分离显示</span>
diff --git a/packages/desktop-client/src/island/custom-island.css b/packages/desktop-client/src/island/custom-island.css
index ce416f9..607253b 100644
--- a/packages/desktop-client/src/island/custom-island.css
+++ b/packages/desktop-client/src/island/custom-island.css
@@ -19,6 +19,129 @@
   flex-direction: column;
   gap: var(--custom-row-gap);
 }
+.custom-card .layout-rows {
+  display: flex;
+  flex-direction: column;
+  gap: var(--custom-row-gap);
+  min-width: 0;
+}
+.custom-card .custom-inner.resident-compact {
+  flex-direction: row;
+  align-items: center;
+  gap: 6px;
+}
+.custom-card.resident-size {
+  padding: 0 var(--resident-padding, 12px);
+}
+.custom-card.resident-size .row-content,
+.custom-card.resident-size .row-components {
+  height: var(--resident-height, 40px);
+  min-height: var(--resident-height, 40px);
+}
+.custom-card.resident-size .row-components {
+  gap: 0;
+}
+.custom-card.resident-size .component-node:not(.node-editing) {
+  height: var(--resident-height, 40px);
+  max-height: var(--resident-height, 40px);
+  padding: 0 calc(var(--row-gap, 12px) / 2);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+.custom-card.resident-size .component-node.schedule {
+  flex-direction: column;
+}
+.custom-card.resident-size .schedule small,
+.custom-card.resident-size .schedule strong {
+  line-height: 1.05;
+}
+.custom-card.resident-size .separator > span {
+  height: 20px;
+}
+.custom-card[role='button'] {
+  cursor: pointer;
+}
+.custom-card[role='button']:focus-visible {
+  outline: 2px solid #8dafff;
+  outline-offset: -3px;
+}
+.custom-card .resident-bell {
+  position: relative;
+  display: grid;
+  place-items: center;
+  width: 28px;
+  height: 28px;
+  flex: 0 0 28px;
+  margin: 0;
+  padding: 4px;
+  border: 0;
+  border-radius: 6px;
+  background: transparent;
+  color: #ffda8b;
+  cursor: pointer;
+}
+.custom-card .resident-bell:hover {
+  background: #ffffff1a;
+}
+.custom-card .resident-bell.bell-empty {
+  color: #ffffff60;
+}
+.custom-card .resident-bell svg {
+  width: 18px;
+  height: 18px;
+}
+.custom-card .resident-bell span {
+  position: absolute;
+  top: -3px;
+  right: -3px;
+  display: grid;
+  place-items: center;
+  min-width: 14px;
+  height: 14px;
+  padding: 0 3px;
+  border-radius: 7px;
+  background: #f45b58;
+  color: white;
+  font:
+    600 9px/1 'Segoe UI',
+    sans-serif;
+  box-shadow: 0 0 0 2px var(--custom-color);
+}
+.custom-card .resident-panel-heading {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 24px;
+  padding: 4px 6px 12px;
+  border-bottom: 1px solid #ffffff1a;
+  margin-bottom: 4px;
+  color: #ffffff94;
+  font-size: 12px;
+}
+.custom-card .resident-panel-heading button {
+  min-height: 30px;
+  padding: 4px 10px;
+  border: 0;
+  border-radius: 8px;
+  background: #ffffff0d;
+  color: inherit;
+  font: inherit;
+  cursor: pointer;
+}
+.layout-editor .surface-tabs {
+  pointer-events: auto;
+  display: flex;
+  gap: 6px;
+}
+.layout-editor .surface-tabs button {
+  font-size: 12px;
+}
+.layout-editor .surface-tabs button.active {
+  color: var(--editor-accent);
+  background: #edf2ff;
+  border-color: #b6c8f0;
+}
 .custom-card .layout-row {
   display: flex;
   flex-direction: column;
diff --git a/packages/desktop-client/src/main/island.ts b/packages/desktop-client/src/main/island.ts
index c36735b..7134d76 100644
--- a/packages/desktop-client/src/main/island.ts
+++ b/packages/desktop-client/src/main/island.ts
@@ -4,6 +4,7 @@ import { pathToFileURL } from 'node:url';
 import { BrowserWindow, ipcMain, screen } from 'electron';
 import {
   DEFAULT_ISLAND_APPEARANCE,
+  CLASSISLAND_ISLAND_METRICS,
   normalizeIslandLayouts,
   ISLAND_POSITIONS,
   ISLAND_SHADOW_PAD,
@@ -201,14 +202,46 @@ class IslandController {
   private get customLayout(): boolean {
     return getConfig().islandLayout.layout === 'custom';
   }
+  private get residentEnabled(): boolean {
+    return this.customLayout && getConfig().islandLayout.residentEnabled;
+  }
+  private residentWasEnabled = false;
+  private residentFaded = false;
+  private residentTouchUntil = 0;
+  private residentControl: { x: number; y: number; width: number; height: number } | null = null;
   getEditingLayout(): boolean {
     return this.editingLayout;
   }
   syncCustomLayout(): void {
+    if (this.residentEnabled !== this.residentWasEnabled) {
+      this.residentFaded = false;
+      this.residentWasEnabled = this.residentEnabled;
+      this.clearTimers();
+      this.state = {
+        ...this.state,
+        mode: this.state.active ? 'pill' : 'hidden',
+        listExpanded: false,
+        updatedAt: Date.now(),
+      };
+      if (this.residentEnabled) this.settleCustomLayout();
+      this.emit();
+    }
     this.win?.webContents.send('island:layout', getConfig().islandLayout);
     this.syncWindow();
   }
+  /** 常驻岛的离散收起：先隐藏，等两端内容尺寸防抖完成后以常态尺寸重新显示。 */
+  private settleCustomLayout(): void {
+    if (this.layoutSettleTimer) clearTimeout(this.layoutSettleTimer);
+    this.settlingLayout = true;
+    this.win?.hide();
+    this.layoutSettleTimer = setTimeout(() => {
+      this.layoutSettleTimer = null;
+      this.settlingLayout = false;
+      this.syncWindow();
+    }, 320);
+  }
   editLayout(enabled = true): void {
+    if (enabled) this.residentFaded = false;
     if (this.layoutSettleTimer) clearTimeout(this.layoutSettleTimer);
     this.layoutSettleTimer = null;
     this.settlingLayout = false;
@@ -238,12 +271,7 @@ class IslandController {
         if (this.customLayout) {
           // 退出编辑先保持隐藏，等行工具栏移除、渲染器防抖测量和主进程防抖完成。
           // 避免把编辑器的占位高度带回常态岛；收缩仍全部发生在不可见期间。
-          this.settlingLayout = true;
-          this.layoutSettleTimer = setTimeout(() => {
-            this.layoutSettleTimer = null;
-            this.settlingLayout = false;
-            this.syncWindow();
-          }, 320);
+          this.settleCustomLayout();
         } else this.syncWindow();
       }
     }
@@ -418,7 +446,7 @@ class IslandController {
       if (this.editingLayout) return;
       // 冒烟里可以临时关掉"失焦收起"，避免测试过程被无关的焦点变化打断（默认开启）
       if (!this.blurCollapseEnabled) return;
-      if (this.state.mode !== 'expanded' || this.state.inClass) return;
+      if (this.state.mode !== 'expanded' || (this.state.inClass && !this.residentEnabled)) return;
       // 设置页预览：示例岛要继续留在屏幕上（用户在调滑块时主窗口一直是焦点）
       if (this.previewId && this.state.active?.id === this.previewId) return;
       const sinceActivated = Date.now() - this.state.updatedAt;
@@ -483,6 +511,10 @@ class IslandController {
     // 首次进入时同步一次外观与状态，保证渲染进程不会停在初始默认值
     this.emitAppearance();
     this.emit();
+    if (this.residentEnabled) {
+      this.residentWasEnabled = true;
+      this.settleCustomLayout();
+    }
     logger.info('灵动岛已就绪（置顶透明窗口，顶部居中）');
   }
 
@@ -636,6 +668,22 @@ class IslandController {
     }
     if (this.previewId && this.previewId !== notification.id) this.endPreview(this.previewId);
 
+    if (this.residentEnabled) {
+      // 常驻模式按用户选择先亮铃铛，普通/紧急/叫人均由点击打开；已经在看通知时继续显示列表。
+      const showingNotifications = this.state.mode === 'expanded' && this.state.active !== null;
+      if (this.state.active && this.state.active.id !== notification.id)
+        this.state.queued = [
+          ...this.state.queued.filter((item) => item.id !== this.state.active!.id),
+          this.state.active,
+        ];
+      this.activate(
+        notification,
+        notification.priority === 'URGENT' ? 'urgent' : 'new',
+        showingNotifications ? 'expanded' : 'pill',
+      );
+      return;
+    }
+
     if (this.isImmediate(notification)) {
       // 插播：如果正在展示别的消息，把它放回队列
       if (this.state.active && this.state.active.id !== notification.id) {
@@ -693,6 +741,12 @@ class IslandController {
     this.state.inClass = payload.inClass;
     this.state.currentPeriodEnd = payload.currentPeriodEnd ?? null;
 
+    if (this.residentEnabled) {
+      this.state.updatedAt = Date.now();
+      this.emit();
+      return;
+    }
+
     if (payload.inClass) {
       if (!wasInClass) logger.info('灵动岛：进入上课时间段，自动隐藏');
       this.explicitShowId = null;
@@ -743,6 +797,16 @@ class IslandController {
     );
     switch (payload.action) {
       case 'expand': {
+        if (this.residentEnabled) {
+          this.clearTimers();
+          const pending = this.pendingNotifications();
+          this.state.active = pending[0] ?? null;
+          this.state.queued = pending.slice(1);
+          this.explicitShowId = this.state.active?.id ?? null;
+          this.setState({ mode: 'expanded', listExpanded: false });
+          if (this.state.active) this.scheduleCollapse(TIMEOUTS.expanded);
+          break;
+        }
         // 上课时段：普通通知（含普通叫人）一律不显示；但紧急通知 / 紧急叫人本来就是必须
         // 立刻看到的，收起（回缩为胶囊）之后必须能再次点开——否则学生会误以为消息消失了。
         const showing = this.state.active;
@@ -816,6 +880,11 @@ class IslandController {
         break;
       }
       case 'collapse':
+        if (this.residentEnabled) {
+          this.clearTimers();
+          this.setState({ mode: this.pendingNotifications().length ? 'pill' : 'hidden', reason: null });
+          break;
+        }
         // 点击卡片空白处 / 右上角收起按钮 / 点击屏幕任意位置：回缩到灵动岛（胶囊）
         // 上课时段：普通通知彻底隐藏；**叫人 / 紧急消息**回缩为胶囊（保持可见，允许再次展开）
         if (this.state.inClass && !this.isOpenable(this.state.active)) {
@@ -876,6 +945,10 @@ class IslandController {
     this.clearTimers();
     this.explicitShowId = null;
     if (!this.win || this.win.isDestroyed()) return;
+    if (this.residentEnabled) {
+      this.setState({ mode: 'hidden', reason: null });
+      return;
+    }
     // 开启"空闲细缝"时不能走 fadeOut + skipWindow：那样会完全隐藏，
     // 必须让 syncWindow() 把窗口收成一条细缝（上课时段仍由 syncWindow 兜底为立即隐藏）。
     if (this.appearance.idleSliver) {
@@ -975,6 +1048,9 @@ class IslandController {
 
   destroy(): void {
     this.clearTimers();
+    if (this.layoutSettleTimer) clearTimeout(this.layoutSettleTimer);
+    this.layoutSettleTimer = null;
+    this.settlingLayout = false;
     this.stopHitPoll();
     this.cancelBoundsAnimation();
     if (this.win && !this.win.isDestroyed()) this.win.destroy();
@@ -1155,6 +1231,8 @@ class IslandController {
 
   /** 状态变更：先通知渲染进程，再驱动窗口尺寸/透明度动画 */
   private setState(patch: Partial<IslandState>, options: { skipWindow?: boolean } = {}): void {
+    if (this.residentEnabled && this.state.mode === 'expanded' && patch.mode && patch.mode !== 'expanded')
+      this.settleCustomLayout();
     this.state = { ...this.state, ...patch, updatedAt: Date.now() };
     // 离开展开态就把"展开更多"复位：下次再点开时默认回到"只显示前三条"
     if (this.state.mode !== 'expanded') this.state.listExpanded = false;
@@ -1193,7 +1271,11 @@ class IslandController {
       if (this.settlingLayout) return;
       this.cancelFade();
       this.applyWindowLayout();
-      this.win.setOpacity(this.appearance.opacity);
+      if (this.residentEnabled) this.applyFocusable();
+      this.updateResidentPointer();
+      this.win.setOpacity(
+        this.appearance.opacity * (this.residentFaded ? CLASSISLAND_ISLAND_METRICS.fadedOpacity : 1),
+      );
       if (
         !this.win.isVisible() &&
         !(process.env.ELECTRON_SMOKE_TEST === '1' && process.env.ELECTRON_SMOKE_MODE !== 'visual')
@@ -1527,11 +1609,12 @@ class IslandController {
     // 但**注入光标**（冒烟用 setHitTestCursor 模拟指针在岛上/岛外）照常生效，
     // 否则「光标轮询校正命中」「岛外穿透」这类断言全会被自己的开关弄红。
     const passthrough = this.testInputPassthrough && this.cursorOverride === null;
-    const next = passthrough
-      ? false
-      : this.touchMode || this.editingLayout || this.customLayout
-        ? true
-        : interactive;
+    const next =
+      passthrough || this.residentFaded
+        ? false
+        : this.touchMode || this.editingLayout || this.customLayout
+          ? true
+          : interactive;
     if (this.interactive === next) return;
     this.interactive = next;
     logger.info(
@@ -1561,6 +1644,45 @@ class IslandController {
     // 渲染进程每 ≥50ms 就会上报一次真实几何，正好拿来当这个判据。
     this.syncTouchLayout();
   }
+  setResidentControl(rect: { x: number; y: number; width: number; height: number } | null): void {
+    this.residentControl =
+      rect &&
+      [rect.x, rect.y, rect.width, rect.height].every(Number.isFinite) &&
+      rect.width > 0 &&
+      rect.height > 0
+        ? { ...rect }
+        : null;
+  }
+  noteResidentTouch(): void {
+    this.residentTouchUntil = Date.now() + 1000;
+    this.updateResidentPointer();
+    this.setInteractive(true, '常驻岛触摸操作');
+  }
+  private updateResidentPointer(cursor?: { x: number; y: number } | null): void {
+    if (!this.win || this.win.isDestroyed()) return;
+    const settings = getConfig().islandLayout;
+    const point = this.cursorLocal(cursor);
+    const control = this.residentControl;
+    const overControl = Boolean(
+      point &&
+      control &&
+      point.x >= control.x &&
+      point.x <= control.x + control.width &&
+      point.y >= control.y &&
+      point.y <= control.y + control.height,
+    );
+    const faded =
+      this.residentEnabled &&
+      settings.pointerFadeEnabled &&
+      !this.editingLayout &&
+      Date.now() >= this.residentTouchUntil &&
+      this.state.mode !== 'expanded' &&
+      this.isInsideHitRect(point) !== settings.pointerFadeReversed &&
+      !overControl;
+    if (faded === this.residentFaded) return;
+    this.residentFaded = faded;
+    this.win.setOpacity(this.appearance.opacity * (faded ? CLASSISLAND_ISLAND_METRICS.fadedOpacity : 1));
+  }
 
   /** 当前岛体矩形（供冒烟验证） */
   getHitRect(): { x: number; y: number; width: number; height: number } | null {
@@ -1707,13 +1829,14 @@ class IslandController {
 
   /** 按光标位置校正命中（不依赖渲染进程是否收到 mousemove） */
   private syncHitFromCursor(cursor?: { x: number; y: number } | null): void {
+    this.updateResidentPointer(cursor);
     if (!this.win || this.win.isDestroyed() || !this.win.isVisible()) {
       this.setInteractive(false, '窗口不可见');
       return;
     }
     // 完全隐藏（含淡出过程中）：一律不再接收鼠标，避免窗口在消失的几百毫秒里吞掉桌面点击。
     // 空闲细缝态（idleSliver）是"可见即可点"，不走这条。
-    if (this.state.mode === 'hidden' && !this.appearance.idleSliver) {
+    if (this.state.mode === 'hidden' && !this.appearance.idleSliver && !this.customLayout) {
       this.setInteractive(false, '隐藏态');
       return;
     }
@@ -2018,6 +2141,12 @@ export function registerIslandIpc(): void {
   });
   ipcMain.handle('island:edit-layout', () => island.editLayout());
   ipcMain.handle('island:get-editing', () => island.getEditingLayout());
+  ipcMain.on('island:resident-control', (event, value) => {
+    if (event.sender === island.getWindow()?.webContents) island.setResidentControl(value);
+  });
+  ipcMain.on('island:resident-touch', (event) => {
+    if (event.sender === island.getWindow()?.webContents) island.noteResidentTouch();
+  });
   ipcMain.handle('island:set-editing', (_event, value: unknown) => island.editLayout(value === true));
   ipcMain.on('island:content-size', (event, value) => {
     if (event.sender === island.getWindow()?.webContents) island.reportCustomSize(value);
diff --git a/packages/desktop-client/src/main/smoke-layout.ts b/packages/desktop-client/src/main/smoke-layout.ts
index 4ac8097..a6d025a 100644
--- a/packages/desktop-client/src/main/smoke-layout.ts
+++ b/packages/desktop-client/src/main/smoke-layout.ts
@@ -3,6 +3,7 @@ import path from 'node:path';
 import { island } from './island.js';
 import { getConfig, saveConfig } from './config.js';
 import { defaultIslandLayouts, ISLAND_SHADOW_PAD } from '@classhelper/shared';
+import { verifyResidentSmoke } from './smoke-resident.js';
 export async function verifyLayoutSmoke(
   check: (name: string, action: () => Promise<boolean | string> | boolean) => Promise<void>,
 ) {
@@ -183,6 +184,7 @@ export async function verifyLayoutSmoke(
         `document.querySelectorAll('.custom-card .component-node.notification, .custom-card .component-node.homework, .custom-card .component-node.call').length === 0`,
       );
     });
+    await verifyResidentSmoke(check);
   } finally {
     saveConfig({ islandLayout: original });
     island.syncCustomLayout();
diff --git a/packages/desktop-client/src/main/smoke-resident.ts b/packages/desktop-client/src/main/smoke-resident.ts
new file mode 100644
index 0000000..331cab5
--- /dev/null
+++ b/packages/desktop-client/src/main/smoke-resident.ts
@@ -0,0 +1,285 @@
+import fs from 'node:fs';
+import path from 'node:path';
+import {
+  defaultIslandLayouts,
+  islandNode,
+  normalizeIslandLayouts,
+  ISLAND_SHADOW_PAD,
+} from '@classhelper/shared';
+import { getConfig, saveConfig } from './config.js';
+import { island } from './island.js';
+
+/** 常驻岛始终用隔离的冒烟配置和本地消息；不读取或标记真实班级通知。 */
+export async function verifyResidentSmoke(
+  check: (name: string, action: () => Promise<boolean | string> | boolean) => Promise<void>,
+) {
+  const win = island.getWindow()!;
+  const originalTouchMode = island.getTouchMode();
+  island.setTouchMode(false);
+  island.setHitTestCursor({ x: 0, y: 0 });
+  const pause = (ms = 600) => new Promise<void>((resolve) => setTimeout(resolve, ms));
+  async function shot(name: string) {
+    if (!process.env.ISLAND_SHOTS_DIR) return;
+    fs.mkdirSync(process.env.ISLAND_SHOTS_DIR, { recursive: true });
+    fs.writeFileSync(
+      path.join(process.env.ISLAND_SHOTS_DIR, `${name}.png`),
+      (await win.webContents.capturePage()).toPNG(),
+    );
+  }
+  const fixture = defaultIslandLayouts();
+  fixture.layout = 'custom';
+  fixture.residentEnabled = true;
+  const compactText = islandNode('text', 'resident-compact-text');
+  compactText.settings.text = '常驻概览';
+  const expandedText = islandNode('text', 'resident-expanded-text');
+  expandedText.settings.text = '今日安排';
+  const scheme = fixture.schemes[0]!;
+  scheme.rows[0]!.nodes = [
+    islandNode('clock', 'resident-clock'),
+    islandNode('separator', 'resident-separator'),
+    compactText,
+  ];
+  scheme.expandedRows[0]!.nodes = [islandNode('date', 'resident-date'), expandedText];
+  island.handleAction({ action: 'dismiss-all' });
+  await pause();
+  await check('旧岛配置默认关闭常驻，并兼容补齐空闲展开布局', () => {
+    const legacy = JSON.parse(JSON.stringify(fixture));
+    delete legacy.residentEnabled;
+    delete legacy.schemes[0].expandedRows;
+    const value = normalizeIslandLayouts(legacy);
+    const oversized = JSON.parse(JSON.stringify(fixture));
+    Object.assign(oversized.schemes[0], { scale: 99, radius: 99, opacity: -1, spacing: 999 });
+    const bounds = normalizeIslandLayouts(oversized).schemes[0]!;
+    return (
+      !value.residentEnabled &&
+      value.schemes[0]!.expandedRows[0]!.nodes.length > 0 &&
+      bounds.scale === 2.5 &&
+      bounds.radius === 20 &&
+      bounds.opacity === 0 &&
+      bounds.spacing === 150
+    );
+  });
+  saveConfig({ islandLayout: fixture });
+  island.syncCustomLayout();
+  await pause(800);
+  let compactWidth = 0;
+  await check('无通知常驻岛显示自定义内容，并为铃铛预留对齐空间', async () => {
+    const layout = await win.webContents.executeJavaScript(`(() => {
+      const card=document.querySelector('.custom-card'), strip=card?.querySelector('.resident-compact'), bell=card?.querySelector('.resident-bell'), clock=card?.querySelector('.clock'), text=card?.querySelector('.text span'), digits=clock?.querySelector('span');
+      if(!card||!strip||!bell||!clock||!text||!digits)return null;
+      const b=bell.getBoundingClientRect(), c=clock.getBoundingClientRect(), r=card.getBoundingClientRect();
+      const t=text.getBoundingClientRect(),d=digits.getBoundingClientRect();
+      return {width:r.width, height:r.height, content:card.textContent.includes('常驻概览'), hidden:bell.classList.contains('bell-empty')&&!bell.querySelector('span'), aligned:Math.abs(b.top+b.height/2-c.top-c.height/2)<=1 && Math.abs(t.top+t.height/2-d.top-d.height/2)<=4};
+    })()`);
+    compactWidth = layout?.width ?? 0;
+    return Boolean(
+      layout?.content &&
+      layout.hidden &&
+      layout.aligned &&
+      Math.abs(layout.height - 40) <= 1 &&
+      island.getState().mode === 'hidden',
+    );
+  });
+  await shot('resident-compact');
+  await check('鼠标移入常驻背景淡化至5%并穿透，移出恢复', async () => {
+    const normalOpacity = win.getOpacity();
+    const rect = await win.webContents.executeJavaScript(
+      `(() => {const r=document.querySelector('.clock').getBoundingClientRect();return {x:r.left+r.width/2,y:r.top+r.height/2};})()`,
+    );
+    const box = win.getBounds();
+    island.setHitTestCursor({ x: box.x + rect.x, y: box.y + rect.y });
+    await pause(120);
+    const faded = Math.abs(win.getOpacity() - normalOpacity * 0.05) < 0.01 && !island.getInteractive();
+    island.setHitTestCursor({ x: 0, y: 0 });
+    await pause(120);
+    return faded && Math.abs(win.getOpacity() - normalOpacity) < 0.01;
+  });
+  await check('右侧展开入口不避让，触摸交互暂停指针淡化', async () => {
+    const rect = await win.webContents.executeJavaScript(
+      `(() => {const r=document.querySelector('.resident-bell').getBoundingClientRect();return {x:r.left+r.width/2,y:r.top+r.height/2};})()`,
+    );
+    const box = win.getBounds(),
+      normalOpacity = win.getOpacity();
+    island.setHitTestCursor({ x: box.x + rect.x, y: box.y + rect.y });
+    await pause(120);
+    const controlAvailable =
+      Math.abs(win.getOpacity() - normalOpacity) < 0.01 && (!win.isVisible() || island.getInteractive());
+    island.setTouchMode(true);
+    island.noteResidentTouch();
+    island.setHitTestCursor({ x: box.x + 20, y: box.y + 20 });
+    await pause(120);
+    const touchAvailable = Math.abs(win.getOpacity() - normalOpacity) < 0.01;
+    island.setHitTestCursor({ x: 0, y: 0 });
+    island.setTouchMode(false);
+    await pause(1100);
+    return controlAvailable && touchAvailable;
+  });
+  await check('ClassIsland 反转淡化和关闭淡化设置生效', async () => {
+    const config = getConfig().islandLayout,
+      normalOpacity = win.getOpacity();
+    config.pointerFadeReversed = true;
+    saveConfig({ islandLayout: config });
+    island.syncCustomLayout();
+    await pause(120);
+    const reversed = Math.abs(win.getOpacity() - normalOpacity * 0.05) < 0.01;
+    config.pointerFadeEnabled = false;
+    saveConfig({ islandLayout: config });
+    island.syncCustomLayout();
+    await pause(120);
+    const disabled = Math.abs(win.getOpacity() - normalOpacity) < 0.01;
+    config.pointerFadeReversed = false;
+    config.pointerFadeEnabled = true;
+    saveConfig({ islandLayout: config });
+    island.syncCustomLayout();
+    return reversed && disabled;
+  });
+  await check('点击常驻内容展开无通知布局', async () => {
+    await win.webContents.executeJavaScript(`document.querySelector('.custom-card .clock')?.click()`);
+    await pause();
+    return (
+      island.getState().mode === 'expanded' &&
+      !island.getState().active &&
+      (await win.webContents.executeJavaScript(
+        `(() => {const card=document.querySelector('.custom-card');return Boolean(card?.querySelector('.resident-panel-heading')&&card.textContent.includes('今日安排')&&!card.textContent.includes('常驻概览'));})()`,
+      ))
+    );
+  });
+  await shot('resident-empty-expanded');
+  await check('无通知展开页可以收回常驻岛且尺寸恢复', async () => {
+    await win.webContents.executeJavaScript(`document.querySelector('[aria-label="收起常驻岛"]')?.click()`);
+    await pause(800);
+    return (
+      island.getState().mode === 'hidden' &&
+      (await win.webContents.executeJavaScript(
+        `Math.abs(document.querySelector('.custom-card').getBoundingClientRect().width-${compactWidth})<=2`,
+      ))
+    );
+  });
+  const message = (id: string, title: string, priority: 'NORMAL' | 'URGENT') => ({
+    id,
+    title,
+    content: '本地隔离消息内容',
+    priority,
+    createdAt: new Date().toISOString(),
+    teacherName: '本地验证',
+    courseName: null,
+  });
+  await check('上课收到普通消息只亮铃铛，常驻内容不横移', async () => {
+    island.setClassState({ inClass: true, currentPeriodEnd: null, week: 1 });
+    island.pushNotification(message('resident-normal', '常驻通知一', 'NORMAL'));
+    await pause();
+    return (
+      island.getState().mode === 'pill' &&
+      (await win.webContents.executeJavaScript(`(() => {
+      const card=document.querySelector('.custom-card'),bell=card?.querySelector('.resident-bell');
+      return Boolean(bell&&!bell.classList.contains('bell-empty')&&bell.textContent.trim()==='1'&&Math.abs(card.getBoundingClientRect().width-${compactWidth})<=2&&!card.classList.contains('has-alert'));
+    })()`))
+    );
+  });
+  await shot('resident-bell');
+  await check('紧急消息也先提示铃铛，重复消息不增加数量', async () => {
+    island.pushNotification(message('resident-urgent', '常驻通知二', 'URGENT'));
+    island.pushNotification(message('resident-urgent', '常驻通知二', 'URGENT'));
+    await pause();
+    return (
+      island.getState().mode === 'pill' &&
+      (await win.webContents.executeJavaScript(
+        `document.querySelector('.resident-bell')?.textContent.trim()==='2'`,
+      ))
+    );
+  });
+  await check('点击铃铛展开原通知列表，上课时也可主动查看', async () => {
+    await win.webContents.executeJavaScript(`document.querySelector('.resident-bell')?.click()`);
+    await pause(1800);
+    return (
+      island.getState().mode === 'expanded' &&
+      (await win.webContents.executeJavaScript(
+        `(() => {const host=document.querySelector('#custom-alert-host');return Boolean(host&&host.getBoundingClientRect().height>0&&host.querySelectorAll('.list-row').length===2&&host.textContent.includes('常驻通知一')&&host.textContent.includes('常驻通知二')&&!document.querySelector('.resident-panel-heading'));})()`,
+      ))
+    );
+  });
+  await shot('resident-notifications');
+  await check('收起通知保留铃铛，键盘可重新展开', async () => {
+    await win.webContents.executeJavaScript(
+      `document.querySelector('#custom-alert-host .icon-btn')?.click()`,
+    );
+    await pause(800);
+    const collapsed = island.getState().mode === 'pill';
+    await win.webContents.executeJavaScript(
+      `document.querySelector('.custom-card')?.dispatchEvent(new KeyboardEvent('keydown',{key:'Enter',bubbles:true}))`,
+    );
+    await pause();
+    return collapsed && island.getState().mode === 'expanded';
+  });
+  await check('处理完通知清除铃铛，恢复常驻内容与窗口留白', async () => {
+    await win.webContents.executeJavaScript(
+      `document.querySelector('#custom-alert-host .solid-btn')?.click()`,
+    );
+    await pause(800);
+    const box = win.getBounds();
+    const dimensions = await win.webContents.executeJavaScript(
+      `(() => {const card=document.querySelector('.custom-card'), r=card.getBoundingClientRect();return {width:r.width,height:r.height,empty:card.querySelector('.resident-bell')?.classList.contains('bell-empty'),content:card.textContent.includes('常驻概览')};})()`,
+    );
+    return (
+      !island.getState().active &&
+      island.getState().queued.length === 0 &&
+      dimensions.empty === true &&
+      dimensions.content &&
+      Math.abs(box.width - dimensions.width - 2 * ISLAND_SHADOW_PAD) <= 2 &&
+      Math.abs(box.height - dimensions.height - 2 * ISLAND_SHADOW_PAD) <= 2
+    );
+  });
+  await check('空闲展开时收到消息返回铃铛提示', async () => {
+    island.handleAction({ action: 'expand' });
+    await pause();
+    island.pushNotification(message('resident-after-open', '展开后新消息', 'NORMAL'));
+    await pause(800);
+    const collapsed = island.getState().mode === 'pill';
+    island.handleAction({ action: 'dismiss-all' });
+    await pause();
+    return collapsed;
+  });
+  await check('常驻和无通知展开内容可独立编辑并持久化', async () => {
+    island.editLayout();
+    await pause();
+    await win.webContents.executeJavaScript(
+      `(() => {const button=[...document.querySelectorAll('.surface-tabs button')].find(b=>b.textContent.includes('无通知'));button?.click();})()`,
+    );
+    await pause(200);
+    await win.webContents.executeJavaScript(
+      `document.querySelector('[data-node="resident-expanded-text"]')?.click()`,
+    );
+    await pause(200);
+    await win.webContents.executeJavaScript(
+      `(() => {const input=document.querySelector('.settings textarea');if(!input)throw Error('未找到展开文本设置');input.value='放学前检查';input.dispatchEvent(new Event('input',{bubbles:true}));input.dispatchEvent(new Event('change',{bubbles:true}));})()`,
+    );
+    await pause();
+    const saved = getConfig().islandLayout.schemes[0]!;
+    const independent =
+      saved.rows[0]!.nodes.find((n) => n.id === 'resident-compact-text')?.settings.text === '常驻概览' &&
+      saved.expandedRows[0]!.nodes.find((n) => n.id === 'resident-expanded-text')?.settings.text ===
+        '放学前检查';
+    await shot('resident-editor');
+    island.editLayout(false);
+    await pause();
+    const roundtrip = normalizeIslandLayouts(JSON.parse(JSON.stringify(getConfig().islandLayout)));
+    return (
+      independent &&
+      roundtrip.residentEnabled &&
+      roundtrip.schemes[0]!.expandedRows[0]!.nodes.some((n) => n.settings.text === '放学前检查')
+    );
+  });
+  await check('关闭常驻并选择经典岛后恢复原有隐藏方式', async () => {
+    island.setClassState({ inClass: false, currentPeriodEnd: null, week: 1 });
+    saveConfig({ islandLayout: defaultIslandLayouts() });
+    island.syncCustomLayout();
+    await pause();
+    return (
+      !win.isVisible() &&
+      !getConfig().islandLayout.residentEnabled &&
+      (await win.webContents.executeJavaScript(`!document.querySelector('.custom-card')`))
+    );
+  });
+  island.setHitTestCursor(null);
+  island.setTouchMode(originalTouchMode);
+}
diff --git a/packages/desktop-client/src/preload/island.ts b/packages/desktop-client/src/preload/island.ts
index d919e5b..3f612e9 100644
--- a/packages/desktop-client/src/preload/island.ts
+++ b/packages/desktop-client/src/preload/island.ts
@@ -17,6 +17,8 @@ export interface IslandBridge {
   setEditing(value: boolean): Promise<void>;
   onEditing(handler: (value: boolean) => void): void;
   reportSize(value: { width: number; height: number }): void;
+  reportResidentControl(value: { x: number; y: number; width: number; height: number } | null): void;
+  noteResidentTouch(): void;
   onViewport(handler: (value: { width: number; height: number }) => void): void;
   onSchedules(handler: (value: ContractScheduleDto[]) => void): void;
 
@@ -63,6 +65,8 @@ const bridge: IslandBridge = {
     ipcRenderer.on('island:editing', (_event, value) => handler(value));
   },
   reportSize: (value) => ipcRenderer.send('island:content-size', value),
+  reportResidentControl: (value) => ipcRenderer.send('island:resident-control', value),
+  noteResidentTouch: () => ipcRenderer.send('island:resident-touch'),
   onViewport: (handler) => {
     ipcRenderer.on('island:viewport', (_event, value) => handler(value));
   },
diff --git a/packages/desktop-client/src/renderer/views/settings/IslandSettingsView.vue b/packages/desktop-client/src/renderer/views/settings/IslandSettingsView.vue
index b79db89..15468b8 100644
--- a/packages/desktop-client/src/renderer/views/settings/IslandSettingsView.vue
+++ b/packages/desktop-client/src/renderer/views/settings/IslandSettingsView.vue
@@ -1,6 +1,6 @@
 <script setup lang="ts">
 import { confirmAction } from '../../composables/confirm.js';
-import { computed, onMounted, ref } from 'vue';
+import { computed, onMounted, onUnmounted, ref } from 'vue';
 import { ElMessage } from 'element-plus';
 import {
   DEFAULT_ISLAND_APPEARANCE,
@@ -28,18 +28,56 @@ function editLayout() {
   void window.desktop?.islandEditLayout();
 }
 const layoutMode = ref<'fixed' | 'custom'>('fixed');
+const residentEnabled = ref(false);
+const pointerFadeEnabled = ref(true);
+const pointerFadeReversed = ref(false);
 async function changeLayout() {
   const config = await window.desktop?.getConfig();
   if (config)
-    await window.desktop?.saveConfig({ islandLayout: { ...config.islandLayout, layout: layoutMode.value } });
+    await window.desktop?.saveConfig({
+      islandLayout: {
+        ...config.islandLayout,
+        layout: layoutMode.value,
+        residentEnabled: residentEnabled.value,
+      },
+    });
 }
 async function chooseLayout(mode: 'fixed' | 'custom') {
   layoutMode.value = mode;
+  if (mode === 'fixed') residentEnabled.value = false;
   await changeLayout();
 }
+async function changeResident(value: boolean | string | number) {
+  residentEnabled.value = value === true;
+  if (residentEnabled.value) layoutMode.value = 'custom';
+  await changeLayout();
+}
+async function changePointerFade(
+  key: 'pointerFadeEnabled' | 'pointerFadeReversed',
+  value: boolean | string | number,
+) {
+  const config = await window.desktop?.getConfig();
+  if (!config) return;
+  const saved = await window.desktop?.saveConfig({
+    islandLayout: { ...config.islandLayout, [key]: value === true },
+  });
+  if (saved) {
+    pointerFadeEnabled.value = saved.islandLayout.pointerFadeEnabled;
+    pointerFadeReversed.value = saved.islandLayout.pointerFadeReversed;
+  }
+}
+async function loadLayout() {
+  const settings = (await window.desktop?.getConfig())?.islandLayout;
+  layoutMode.value = settings?.layout ?? 'fixed';
+  residentEnabled.value = settings?.residentEnabled ?? false;
+  pointerFadeEnabled.value = settings?.pointerFadeEnabled ?? true;
+  pointerFadeReversed.value = settings?.pointerFadeReversed ?? false;
+}
 onMounted(async () => {
-  layoutMode.value = (await window.desktop?.getConfig())?.islandLayout.layout ?? 'fixed';
+  await loadLayout();
+  window.addEventListener('focus', loadLayout);
 });
+onUnmounted(() => window.removeEventListener('focus', loadLayout));
 
 /**
  * 左右边距是否有效：只在停靠左 / 右时生效。
@@ -140,13 +178,49 @@ onMounted(async () => {
           <span>在岛内排列时钟、课程和消息等组件</span>
         </button>
       </div>
+      <div class="resident-setting">
+        <div>
+          <strong>常驻岛</strong>
+          <p>始终显示自定义内容；收到消息后显示铃铛，点击查看。没有通知时可展开另一套自定义内容。</p>
+        </div>
+        <el-switch :model-value="residentEnabled" aria-label="常驻岛" @change="changeResident" />
+      </div>
       <div v-if="layoutMode === 'custom'" class="layout-edit-entry">
         <div>
           <strong>按你的习惯布置岛内内容</strong>
-          <p>在预览中添加和排列组件，点选组件即可设置；更改自动保存到本机。</p>
+          <p>
+            {{
+              residentEnabled
+                ? '分别编辑「收起时」与「无通知展开时」的内容，点选组件即可设置。'
+                : '在预览中添加和排列组件，点选组件即可设置；更改自动保存到本机。'
+            }}
+          </p>
         </div>
         <el-button type="primary" @click="editLayout">编辑岛内组件</el-button>
       </div>
+      <div v-if="residentEnabled" class="resident-window-options">
+        <div>
+          <strong>ClassIsland 窗口设置</strong>
+          <p>
+            常驻行基准高度 40 px。指针移入背景后淡化至 5%
+            并穿透，右侧铃铛或展开按钮保持可用；编辑、展开和触摸交互期间暂停避让。
+          </p>
+        </div>
+        <label>
+          <span>指针移入淡化</span>
+          <el-switch
+            :model-value="pointerFadeEnabled"
+            @change="(value: boolean | string | number) => changePointerFade('pointerFadeEnabled', value)"
+          />
+        </label>
+        <label v-if="pointerFadeEnabled">
+          <span>反转指针移入淡化</span>
+          <el-switch
+            :model-value="pointerFadeReversed"
+            @change="(value: boolean | string | number) => changePointerFade('pointerFadeReversed', value)"
+          />
+        </label>
+      </div>
     </el-card>
 
     <el-card shadow="never">
@@ -326,6 +400,47 @@ onMounted(async () => {
 .layout-mode-card {
   margin-bottom: 20px;
 }
+.resident-setting {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 24px;
+  margin-top: 20px;
+  padding-top: 20px;
+  border-top: 1px solid var(--el-border-color-lighter);
+}
+.resident-setting strong {
+  font-size: 14px;
+}
+.resident-setting p {
+  max-width: 620px;
+  margin: 8px 0 0;
+  color: var(--el-text-color-secondary);
+  font-size: 12px;
+  line-height: 1.8;
+}
+.resident-window-options {
+  margin-top: 20px;
+  padding-top: 20px;
+  border-top: 1px solid var(--el-border-color-lighter);
+}
+.resident-window-options strong {
+  font-size: 14px;
+}
+.resident-window-options p {
+  margin: 8px 0 14px;
+  color: var(--el-text-color-secondary);
+  font-size: 12px;
+  line-height: 1.8;
+}
+.resident-window-options label {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 24px;
+  min-height: 40px;
+  font-size: 13px;
+}
 .layout-choices {
   display: grid;
   grid-template-columns: repeat(2, minmax(0, 1fr));
diff --git a/packages/shared/src/island-layout.ts b/packages/shared/src/island-layout.ts
index cbce5b5..9113963 100644
--- a/packages/shared/src/island-layout.ts
+++ b/packages/shared/src/island-layout.ts
@@ -13,6 +13,24 @@ export const ISLAND_COMPONENTS = [
   'homework',
   'call',
 ] as const;
+/** ClassIsland master：MainWindowLine 与 Models/Settings.cs（2026-10-17 核对）。 */
+export const CLASSISLAND_ISLAND_METRICS = {
+  rowHeight: 40,
+  horizontalPadding: 12,
+  radius: 8,
+  opacity: 0.5,
+  scale: 1,
+  scaleMin: 0.75,
+  scaleMax: 2.5,
+  radiusMax: 20,
+  rowSpacingMax: 150,
+  secondaryFontSize: 14,
+  bodyFontSize: 16,
+  emphasizedFontSize: 18,
+  largeFontSize: 20,
+  rowSpacing: 5,
+  fadedOpacity: 0.05,
+} as const;
 export type IslandComponentKind = (typeof ISLAND_COMPONENTS)[number];
 export const ISLAND_COMPONENT_LABELS: Record<IslandComponentKind, string> = {
   date: '日期',
@@ -83,6 +101,8 @@ export interface IslandLayoutScheme {
   id: string;
   name: string;
   rows: IslandLayoutRow[];
+  /** 常驻岛没有待处理通知时，点击展开所显示的内容。 */
+  expandedRows: IslandLayoutRow[];
   scale: number;
   color: string;
   foreground: string;
@@ -93,9 +113,26 @@ export interface IslandLayoutScheme {
 }
 export interface IslandLayoutSettings {
   layout: 'fixed' | 'custom';
+  residentEnabled: boolean;
+  pointerFadeEnabled: boolean;
+  pointerFadeReversed: boolean;
   activeSchemeId: string;
   schemes: IslandLayoutScheme[];
 }
+function defaultExpandedRows(): IslandLayoutRow[] {
+  const course = islandNode('schedule', 'expanded-schedule');
+  course.settings.display = 'today';
+  return [
+    {
+      id: 'expanded-main',
+      name: '展开内容',
+      main: true,
+      allowNotifications: false,
+      gap: 12,
+      nodes: [islandNode('date', 'expanded-date'), course],
+    },
+  ];
+}
 export function islandNode(kind: IslandComponentKind, id: string): IslandComponentNode {
   return {
     id,
@@ -117,10 +154,10 @@ export function islandNode(kind: IslandComponentKind, id: string): IslandCompone
     },
     appearance: {
       resourceOverridingEnabled: false,
-      secondaryFontSize: 12,
+      secondaryFontSize: 14,
       bodyFontSize: 16,
-      emphasizedFontSize: 20,
-      largeFontSize: 28,
+      emphasizedFontSize: 18,
+      largeFontSize: 20,
       customForegroundEnabled: false,
       foreground: '#ffffff',
       customBackgroundEnabled: false,
@@ -137,11 +174,15 @@ export function islandNode(kind: IslandComponentKind, id: string): IslandCompone
 export function defaultIslandLayouts(): IslandLayoutSettings {
   return {
     layout: 'fixed',
+    residentEnabled: false,
+    pointerFadeEnabled: true,
+    pointerFadeReversed: false,
     activeSchemeId: 'default',
     schemes: [
       {
         id: 'default',
         name: '默认组件方案',
+        expandedRows: defaultExpandedRows(),
         rows: [
           {
             id: 'main',
@@ -158,12 +199,12 @@ export function defaultIslandLayouts(): IslandLayoutSettings {
           },
         ],
         scale: 1,
-        color: '#202024',
+        color: '#000000',
         foreground: '#ffffff',
-        opacity: 0.85,
-        radius: 24,
+        opacity: 0.5,
+        radius: 8,
         separated: false,
-        spacing: 8,
+        spacing: 5,
       },
     ],
   };
@@ -173,6 +214,7 @@ export function normalizeIslandLayouts(input: unknown): IslandLayoutSettings {
   const fallback = defaultIslandLayouts();
   if (!input || typeof input !== 'object') return fallback;
   const raw = input as IslandLayoutSettings;
+  const resident = raw.layout === 'custom' && raw.residentEnabled === true;
   const clamp = (n: unknown, min: number, max: number, value: number) =>
     typeof n === 'number' && Number.isFinite(n) ? Math.min(max, Math.max(min, n)) : value;
   const color = (v: unknown, value: string) =>
@@ -206,10 +248,10 @@ export function normalizeIslandLayouts(input: unknown): IslandLayoutSettings {
       },
       appearance: {
         resourceOverridingEnabled: a.resourceOverridingEnabled === true,
-        secondaryFontSize: clamp(a.secondaryFontSize, 8, 96, 12),
+        secondaryFontSize: clamp(a.secondaryFontSize, 8, 96, 14),
         bodyFontSize: clamp(a.bodyFontSize, 8, 96, 16),
-        emphasizedFontSize: clamp(a.emphasizedFontSize, 8, 96, 20),
-        largeFontSize: clamp(a.largeFontSize, 8, 128, 28),
+        emphasizedFontSize: clamp(a.emphasizedFontSize, 8, 96, 18),
+        largeFontSize: clamp(a.largeFontSize, 8, 128, 20),
         customForegroundEnabled: a.customForegroundEnabled === true,
         foreground: color(a.foreground, '#ffffff'),
         customBackgroundEnabled: a.customBackgroundEnabled === true,
@@ -233,10 +275,8 @@ export function normalizeIslandLayouts(input: unknown): IslandLayoutSettings {
         : [],
     };
   };
-  const schemes: IslandLayoutScheme[] = [];
-  for (const scheme of (Array.isArray(raw.schemes) ? raw.schemes : []).slice(0, 20)) {
-    if (!scheme || !Array.isArray(scheme.rows)) continue;
-    const rows = scheme.rows
+  const normalizeRows = (input: IslandLayoutRow[]): IslandLayoutRow[] => {
+    const rows = input
       .filter((r) => r && typeof r === 'object')
       .slice(0, 12)
       .map((r, i) => ({
@@ -249,28 +289,47 @@ export function normalizeIslandLayouts(input: unknown): IslandLayoutSettings {
           .map((n) => node(n, 0))
           .filter((n): n is IslandComponentNode => Boolean(n)),
       }));
-    if (!rows.length) continue;
+    if (!rows.length) return [];
     if (!rows.some((r) => r.main)) rows[0]!.main = true;
     let main = false;
     for (const r of rows) {
       if (r.main && main) r.main = false;
       if (r.main) main = true;
     }
+    return rows;
+  };
+  const schemes: IslandLayoutScheme[] = [];
+  for (const scheme of (Array.isArray(raw.schemes) ? raw.schemes : []).slice(0, 20)) {
+    if (!scheme || !Array.isArray(scheme.rows)) continue;
+    const rows = normalizeRows(scheme.rows);
+    if (!rows.length) continue;
+    const expandedRows = normalizeRows(
+      Array.isArray(scheme.expandedRows) ? scheme.expandedRows : defaultExpandedRows(),
+    );
     schemes.push({
       id: String(scheme.id || `scheme-${schemes.length}`).slice(0, 100),
       name: String(scheme.name || '组件方案').slice(0, 64),
       rows,
-      scale: clamp(scheme.scale, 0.5, 3, 1),
-      color: color(scheme.color, '#202024'),
+      expandedRows: expandedRows.length ? expandedRows : normalizeRows(defaultExpandedRows()),
+      scale: clamp(
+        scheme.scale,
+        resident ? CLASSISLAND_ISLAND_METRICS.scaleMin : 0.5,
+        resident ? CLASSISLAND_ISLAND_METRICS.scaleMax : 3,
+        1,
+      ),
+      color: color(scheme.color, '#000000'),
       foreground: color(scheme.foreground, '#ffffff'),
-      opacity: clamp(scheme.opacity, 0.1, 1, 0.85),
-      radius: clamp(scheme.radius, 0, 100, 24),
+      opacity: clamp(scheme.opacity, resident ? 0 : 0.1, 1, 0.5),
+      radius: clamp(scheme.radius, 0, resident ? CLASSISLAND_ISLAND_METRICS.radiusMax : 100, 8),
       separated: scheme.separated === true,
-      spacing: clamp(scheme.spacing, 0, 100, 8),
+      spacing: clamp(scheme.spacing, 0, resident ? CLASSISLAND_ISLAND_METRICS.rowSpacingMax : 100, 5),
     });
   }
   return {
     layout: raw.layout === 'custom' ? 'custom' : 'fixed',
+    residentEnabled: raw.layout === 'custom' && raw.residentEnabled === true,
+    pointerFadeEnabled: raw.pointerFadeEnabled !== false,
+    pointerFadeReversed: raw.pointerFadeReversed === true,
     schemes: schemes.length ? schemes : fallback.schemes,
     activeSchemeId: schemes.some((s) => s.id === raw.activeSchemeId)
       ? raw.activeSchemeId