diff --git a/packages/desktop-client/src/island/ComponentNode.vue b/packages/desktop-client/src/island/ComponentNode.vue
new file mode 100644
index 0000000..d652144
--- /dev/null
+++ b/packages/desktop-client/src/island/ComponentNode.vue
@@ -0,0 +1,223 @@
+<script setup lang="ts">
+import { computed, type CSSProperties } from 'vue';
+import {
+  ISLAND_COMPONENT_LABELS,
+  type IslandComponentNode,
+  type IslandState,
+  type ScheduleDto,
+} from '@classhelper/shared';
+const props = defineProps<{
+  node: IslandComponentNode;
+  state: IslandState;
+  now: number;
+  schedules: ScheduleDto[];
+  editing: boolean;
+  selectedId: string;
+  alertNodeId: string;
+  parentHasWidth?: boolean;
+}>();
+const emit = defineEmits<{ select: [id: string]; drag: [event: PointerEvent, id: string] }>();
+const container = computed(() => ['group', 'stack', 'slide', 'rolling'].includes(props.node.kind));
+const current = computed(() => {
+  const d = new Date(props.now),
+    t = `${String(d.getHours()).padStart(2, '0')}:${String(d.getMinutes()).padStart(2, '0')}`;
+  return props.schedules.find((s) => s.startTime <= t && s.endTime > t);
+});
+const next = computed(() => {
+  const d = new Date(props.now),
+    t = `${String(d.getHours()).padStart(2, '0')}:${String(d.getMinutes()).padStart(2, '0')}`;
+  return props.schedules.find((s) => s.startTime > t);
+});
+const hidden = computed(
+  () =>
+    !props.editing &&
+    props.node.advanced.hideRules.some(
+      (r) =>
+        (r === 'in-class' && props.state.inClass) ||
+        (r === 'no-message' && !props.state.active) ||
+        (r === 'no-class' && !current.value),
+    ),
+);
+const visibleChildren = computed(() =>
+  props.node.kind === 'slide'
+    ? props.node.children.filter(
+        (_, i) =>
+          i ===
+          Math.floor(props.now / (props.node.settings.interval * 1000)) %
+            Math.max(1, props.node.children.length),
+      )
+    : props.node.children,
+);
+const content = computed(() => {
+  const n = props.node,
+    d = new Date(props.now);
+  if (n.kind === 'date')
+    return d.toLocaleDateString('zh-CN', { month: 'long', day: 'numeric', weekday: 'long' });
+  if (n.kind === 'clock')
+    return d.toLocaleTimeString('zh-CN', {
+      hour: '2-digit',
+      minute: '2-digit',
+      ...(n.settings.seconds ? { second: '2-digit' } : {}),
+      hour12: n.settings.hour12,
+    });
+  if (n.kind === 'text')
+    return n.settings.template
+      ? n.settings.text
+          .replaceAll('{date}', d.toLocaleDateString('zh-CN'))
+          .replaceAll('{time}', d.toLocaleTimeString('zh-CN'))
+          .replaceAll('{course}', current.value?.course?.name || '暂无课程')
+      : n.settings.text;
+  if (n.kind === 'countdown') {
+    const time = n.settings.target === 'school' ? props.schedules.at(-1)?.endTime : next.value?.startTime;
+    if (!time) return '今日课程已结束';
+    const [h, m] = time.split(':').map(Number);
+    const end = new Date(d);
+    end.setHours(h!, m!, 0, 0);
+    const left = Math.max(0, Math.ceil((end.getTime() - props.now) / 1000));
+    return `${n.settings.target === 'school' ? '距放学' : '距上课'} ${Math.floor(left / 60)}:${String(left % 60).padStart(2, '0')}`;
+  }
+  return '';
+});
+const lessons = computed(() =>
+  props.node.settings.display === 'today'
+    ? props.schedules.slice(0, props.node.settings.count)
+    : [props.node.settings.display === 'next' ? next.value : current.value].filter((s): s is ScheduleDto =>
+        Boolean(s),
+      ),
+);
+const style = computed<CSSProperties>(() => {
+  const n = props.node,
+    a = n.appearance,
+    override = a.resourceOverridingEnabled;
+  const color =
+    a.background +
+    Math.round((a.customBackgroundOpacityEnabled ? a.backgroundOpacity : 1) * 255)
+      .toString(16)
+      .padStart(2, '0');
+  return {
+    opacity: a.opacity,
+    width: n.advanced.width ? `${n.advanced.width}px` : undefined,
+    maxWidth: n.advanced.maxWidth ? `${n.advanced.maxWidth}px` : undefined,
+    alignSelf: !props.parentHasWidth
+      ? 'stretch'
+      : ({ stretch: 'stretch', start: 'flex-start', center: 'center', end: 'flex-end' } as const)[
+          n.advanced.align
+        ],
+    textAlign: n.advanced.align === 'center' ? 'center' : 'start',
+    color: override && a.customForegroundEnabled ? a.foreground : undefined,
+    background: override && a.customBackgroundEnabled ? color : undefined,
+    borderRadius: override && a.customCornerRadiusEnabled ? `${a.cornerRadius}px` : undefined,
+    fontSize: override ? `${a.bodyFontSize}px` : undefined,
+    '--secondary': override ? `${a.secondaryFontSize}px` : undefined,
+    '--emphasized': override ? `${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`,
+    display: container.value ? 'flex' : undefined,
+  };
+});
+</script>
+<template>
+  <div
+    v-if="!hidden"
+    class="component-node"
+    :class="[{ selected: editing && selectedId === node.id, container }, node.kind]"
+    :style="style"
+    :data-node="node.id"
+    @click.stop="editing && emit('select', node.id)"
+  >
+    <button
+      v-if="editing"
+      class="node-handle"
+      :data-kind="node.kind"
+      aria-label="拖动组件"
+      @pointerdown.stop="emit('drag', $event, node.id)"
+    >
+      ⠿ {{ ISLAND_COMPONENT_LABELS[node.kind] }}
+    </button>
+    <template v-if="container">
+      <ComponentNode
+        v-for="child in visibleChildren"
+        :key="child.id"
+        :node="child"
+        :state="state"
+        :now="now"
+        :schedules="schedules"
+        :editing="editing"
+        :selected-id="selectedId"
+        :alert-node-id="alertNodeId"
+        :parent-has-width="Boolean(node.advanced.width || node.advanced.maxWidth)"
+        @select="emit('select', $event)"
+        @drag="(e, id) => emit('drag', e, id)"
+      >
+        <template #alerts><slot name="alerts" /></template>
+      </ComponentNode>
+    </template>
+    <template v-else-if="node.kind === 'separator'"><span aria-hidden="true">│</span></template>
+    <template v-else-if="node.kind === 'schedule'">
+      <div v-for="(s, i) in lessons" :key="s.id">
+        <small v-if="node.settings.showPeriod">第 {{ i + 1 }} 节 · {{ s.startTime }}</small>
+        <strong>{{ s.course?.name }}</strong>
+      </div>
+      <span v-if="!lessons.length">暂无课程</span>
+    </template>
+    <template v-else-if="['notification', 'homework', 'call'].includes(node.kind)">
+      <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' }">
+      {{ content }}
+    </span>
+  </div>
+</template>
+<style scoped>
+.component-node {
+  min-width: 0;
+  overflow: hidden;
+  padding: 6px;
+  flex-shrink: 0;
+  position: relative;
+}
+.container {
+  align-items: center;
+}
+.stack {
+  flex-wrap: wrap;
+}
+.rolling {
+  overflow: hidden;
+}
+.rolling > :deep(.component-node) {
+  animation: rolling var(--rolling-duration) linear infinite;
+}
+.selected {
+  outline: 2px solid var(--ch-accent, #5b9cff);
+}
+.node-handle {
+  touch-action: none;
+  cursor: grab;
+  display: block;
+  font: inherit;
+  padding: 6px;
+}
+small {
+  font-size: var(--secondary, 12px);
+  opacity: 0.7;
+}
+strong,
+.emphasized {
+  font-size: var(--emphasized, 20px);
+}
+.large {
+  font-size: var(--large, 28px);
+}
+@keyframes rolling {
+  from {
+    transform: translateX(30%);
+  }
+  to {
+    transform: translateX(-80%);
+  }
+}
+</style>
diff --git a/packages/desktop-client/src/island/CustomIsland.vue b/packages/desktop-client/src/island/CustomIsland.vue
new file mode 100644
index 0000000..2688f08
--- /dev/null
+++ b/packages/desktop-client/src/island/CustomIsland.vue
@@ -0,0 +1,755 @@
+<script setup lang="ts">
+import { computed, nextTick, onMounted, onUnmounted, ref, watch, type CSSProperties } from 'vue';
+import {
+  ISLAND_COMPONENTS,
+  ISLAND_COMPONENT_LABELS,
+  ISLAND_SHADOW_PAD,
+  islandNode,
+  normalizeIslandLayouts,
+  type IslandLayoutSettings,
+  type IslandComponentKind,
+  type IslandComponentNode,
+  type IslandState,
+  type ScheduleDto,
+} from '@classhelper/shared';
+import ComponentNode from './ComponentNode.vue';
+const props = defineProps<{
+  settings: IslandLayoutSettings;
+  state: IslandState;
+  editing: boolean;
+  schedules: ScheduleDto[];
+}>();
+const emit = defineEmits<{
+  save: [settings: IslandLayoutSettings];
+  done: [];
+  host: [element: HTMLElement | null];
+}>();
+function hostRef(element: unknown) {
+  emit('host', element instanceof HTMLElement ? element : null);
+}
+const draft = ref(normalizeIslandLayouts(props.settings));
+watch(
+  () => props.settings,
+  (s) => {
+    draft.value = normalizeIslandLayouts(s);
+  },
+  { deep: true },
+);
+const scheme = computed(() => draft.value.schemes.find((s) => s.id === draft.value.activeSchemeId)!);
+const selectedId = ref(''),
+  selectedKind = ref<IslandComponentKind>('clock');
+const now = ref(Date.now()),
+  canvasScale = ref(1),
+  pan = ref({ x: 0, y: 0 });
+const shell = ref<HTMLElement>(),
+  inner = ref<HTMLElement>();
+const viewport = ref({ width: 0, height: 0 });
+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),
+);
+const alertRow = computed(
+  () =>
+    scheme.value.rows.find((r) => r.main && r.allowNotifications) ||
+    scheme.value.rows.find((r) => r.allowNotifications),
+);
+const alertNodeId = computed(() => {
+  const kind = props.state.active?.kind ?? 'notification';
+  return (
+    (alertRow.value &&
+      allNodes(alertRow.value.nodes).find((n) => n.kind === kind || n.kind === 'notification')?.id) ||
+    ''
+  );
+});
+const hasMessage = computed(() => props.state.mode !== 'hidden' && Boolean(props.state.active));
+const shellStyle = computed<CSSProperties>(() => ({
+  width: viewport.value.width ? `${viewport.value.width}px` : 'max-content',
+  minHeight: viewport.value.height ? `${viewport.value.height}px` : undefined,
+  maxWidth: `calc(100vw - ${2 * ISLAND_SHADOW_PAD}px)`,
+  maxHeight: `calc(100vh - ${2 * ISLAND_SHADOW_PAD}px)`,
+  color: scheme.value.foreground,
+  fontSize: '16px',
+  '--custom-color':
+    scheme.value.color +
+    Math.round(scheme.value.opacity * 255)
+      .toString(16)
+      .padStart(2, '0'),
+  '--custom-radius': `${scheme.value.radius}px`,
+  gap: `${scheme.value.spacing}px`,
+}));
+function id() {
+  return `node-${Date.now()}-${Math.random().toString(36).slice(2, 9)}`;
+}
+function save() {
+  const value = normalizeIslandLayouts(JSON.parse(JSON.stringify(draft.value)));
+  draft.value = value;
+  emit('save', value);
+}
+function addRow(after: number) {
+  scheme.value.rows.splice(after + 1, 0, {
+    id: id(),
+    name: '新主界面行',
+    main: false,
+    allowNotifications: true,
+    gap: 8,
+    nodes: [],
+  });
+  save();
+}
+function add(kind = selectedKind.value, row = scheme.value.rows[0]) {
+  if (!row) return;
+  const n = islandNode(kind, id());
+  row.nodes.push(n);
+  selectedId.value = n.id;
+  save();
+}
+function findList(nodeId: string, nodes?: IslandComponentNode[]): IslandComponentNode[] | null {
+  for (const list of nodes ? [nodes] : scheme.value.rows.map((r) => r.nodes)) {
+    if (list.some((n) => n.id === nodeId)) return list;
+    for (const n of list) {
+      const found = findList(nodeId, n.children);
+      if (found) return found;
+    }
+  }
+  return null;
+}
+function remove() {
+  const list = findList(selectedId.value);
+  if (list)
+    list.splice(
+      list.findIndex((n) => n.id === selectedId.value),
+      1,
+    );
+  selectedId.value = '';
+  save();
+}
+function duplicate() {
+  const n = selected.value,
+    list = findList(selectedId.value);
+  if (!n || !list) return;
+  const copy = JSON.parse(JSON.stringify(n)) as IslandComponentNode;
+  for (const child of allNodes([copy])) child.id = id();
+  list.splice(list.indexOf(n) + 1, 0, copy);
+  selectedId.value = copy.id;
+  save();
+}
+function wrap(kind: IslandComponentKind) {
+  if (!['slide', 'rolling', 'group', 'stack'].includes(kind)) return;
+  const n = selected.value,
+    list = findList(selectedId.value);
+  if (!n || !list) return;
+  const container = islandNode(kind, id());
+  container.children = [n];
+  list.splice(list.indexOf(n), 1, container);
+  selectedId.value = container.id;
+  save();
+}
+function newScheme() {
+  const name = `新方案 ${draft.value.schemes.length + 1}`;
+  const copy = JSON.parse(JSON.stringify(scheme.value));
+  copy.id = id();
+  copy.name = name;
+  for (const r of copy.rows) {
+    r.id = id();
+    for (const n of allNodes(r.nodes)) n.id = id();
+  }
+  draft.value.schemes.push(copy);
+  draft.value.activeSchemeId = copy.id;
+  save();
+}
+function exportScheme() {
+  const url = URL.createObjectURL(
+    new Blob([JSON.stringify({ format: 'classhelper-island-layout', scheme: scheme.value }, null, 2)], {
+      type: 'application/json',
+    }),
+  );
+  const a = document.createElement('a');
+  a.href = url;
+  a.download = `${scheme.value.name}.json`;
+  a.click();
+  URL.revokeObjectURL(url);
+}
+const error = ref('');
+async function importScheme(event: Event) {
+  try {
+    const file = (event.target as HTMLInputElement).files?.[0];
+    if (!file || file.size > 1_000_000) throw new Error('请选择小于 1MB 的 JSON');
+    const parsed = JSON.parse(await file.text());
+    if (parsed.format !== 'classhelper-island-layout') throw new Error('方案格式不正确');
+    const value = normalizeIslandLayouts({
+      layout: 'custom',
+      activeSchemeId: parsed.scheme.id,
+      schemes: [parsed.scheme],
+    });
+    const s = value.schemes[0]!;
+    s.id = id();
+    draft.value.schemes.push(s);
+    draft.value.activeSchemeId = s.id;
+    save();
+  } catch (e) {
+    error.value = String(e);
+  }
+}
+let drag: {
+  type: 'node' | 'library' | 'row';
+  id: string;
+  kind?: IslandComponentKind;
+  rowId?: string;
+  targetId?: string;
+} | null = null;
+function startDrag(
+  event: PointerEvent,
+  type: 'node' | 'library' | 'row',
+  nodeId: string,
+  kind?: IslandComponentKind,
+) {
+  event.preventDefault();
+  event.stopPropagation();
+  try {
+    (event.currentTarget as HTMLElement).setPointerCapture(event.pointerId);
+  } catch {
+    /* 合成事件无活动指针；真实触摸使用捕获 */
+  }
+  drag = { type, id: nodeId, kind };
+}
+function move(event: PointerEvent) {
+  if (!drag) return;
+  const element = document.elementFromPoint(event.clientX, event.clientY);
+  drag.rowId = element?.closest<HTMLElement>('[data-row]')?.dataset.row;
+  drag.targetId = element?.closest<HTMLElement>('[data-node]')?.dataset.node;
+}
+function drop() {
+  if (!drag) return;
+  const moving = drag;
+  drag = null;
+  const row = scheme.value.rows.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]!);
+    save();
+    return;
+  }
+  const list = findList(moving.id),
+    node = list?.find((n) => n.id === moving.id);
+  if (!list || !node || allNodes([node]).some((n) => n.id === moving.targetId)) return;
+  const target = allNodes(row.nodes).find((n) => n.id === moving.targetId);
+  list.splice(list.indexOf(node), 1);
+  if (target && ['group', 'stack', 'slide', 'rolling'].includes(target.kind)) target.children.push(node);
+  else if (target) {
+    const targetList = findList(target.id)!;
+    targetList.splice(targetList.indexOf(target), 0, node);
+  } else row.nodes.push(node);
+  selectedId.value = node.id;
+  save();
+}
+let panning: { x: number; y: number; originX: number; originY: number } | null = null;
+function panStart(e: PointerEvent) {
+  if (e.target !== e.currentTarget) return;
+  panning = { x: e.clientX, y: e.clientY, originX: pan.value.x, originY: pan.value.y };
+  (e.currentTarget as HTMLElement).setPointerCapture(e.pointerId);
+}
+function panMove(e: PointerEvent) {
+  if (panning)
+    pan.value = { x: panning.originX + e.clientX - panning.x, y: panning.originY + e.clientY - panning.y };
+  move(e);
+}
+let observer: ResizeObserver | undefined,
+  measureTimer: ReturnType<typeof setTimeout> | undefined,
+  clock: ReturnType<typeof setInterval>;
+function measure() {
+  clearTimeout(measureTimer);
+  measureTimer = setTimeout(() => {
+    if (inner.value) {
+      const rect = inner.value.getBoundingClientRect(),
+        scale = props.editing ? canvasScale.value : 1;
+      window.island?.reportSize({
+        width: Math.ceil(rect.width / scale + 24),
+        height: Math.ceil(rect.height / scale + 24),
+      });
+    }
+  }, 120);
+}
+watch([() => props.editing, scheme, () => props.state], () => void nextTick(measure), { deep: true });
+onMounted(() => {
+  clock = setInterval(() => (now.value = Date.now()), 1000);
+  observer = new ResizeObserver(measure);
+  if (inner.value) observer.observe(inner.value);
+  window.island?.onViewport((v) => (viewport.value = v));
+  measure();
+});
+onUnmounted(() => {
+  clearInterval(clock);
+  clearTimeout(measureTimer);
+  observer?.disconnect();
+});
+</script>
+<template>
+  <div
+    :class="editing ? 'layout-editor' : 'custom-window'"
+    @pointermove="panMove"
+    @pointerup="
+      drop();
+      panning = null;
+    "
+    @pointercancel="
+      drag = null;
+      panning = null;
+    "
+  >
+    <header v-if="editing">
+      <strong>编辑灵动岛</strong>
+      <select
+        v-model="draft.activeSchemeId"
+        @change="
+          selectedId = '';
+          save();
+        "
+      >
+        <option v-for="s in draft.schemes" :key="s.id" :value="s.id">{{ s.name }}</option>
+      </select>
+      <button @click="newScheme">新方案</button>
+      <button @click="exportScheme">导出</button>
+      <label>
+        导入
+        <input type="file" accept="application/json" @change="importScheme" />
+      </label>
+      <button
+        @click="
+          pan = { x: 0, y: 0 };
+          canvasScale = 1;
+        "
+      >
+        重置视图
+      </button>
+      <label>
+        画布缩放
+        <input type="range" v-model.number="canvasScale" min="0.3" max="2" step="0.1" />
+      </label>
+      <button
+        @click="
+          save();
+          emit('done');
+        "
+      >
+        完成
+      </button>
+    </header>
+    <aside v-if="editing" class="library">
+      <h3>组件库</h3>
+      <button
+        v-for="kind in ISLAND_COMPONENTS"
+        :key="kind"
+        @pointerdown="startDrag($event, 'library', '', kind)"
+        @click="selectedKind = kind"
+      >
+        {{ ISLAND_COMPONENT_LABELS[kind as IslandComponentKind] }}
+      </button>
+      <select v-model="selectedKind">
+        <option v-for="kind in ISLAND_COMPONENTS" :key="kind" :value="kind">
+          {{ ISLAND_COMPONENT_LABELS[kind as IslandComponentKind] }}
+        </option>
+      </select>
+      <button @click="add()">点选并添加</button>
+      <p>拖到组件栏；拖到容器可嵌套。支持触摸。</p>
+      <h3>外观</h3>
+      <label>
+        方案名称
+        <input v-model="scheme.name" @change="save" />
+      </label>
+      <label>
+        缩放
+        <input type="number" v-model.number="scheme.scale" min="0.5" max="3" step="0.1" @change="save" />
+      </label>
+      <label>
+        背景
+        <input type="color" v-model="scheme.color" @change="save" />
+      </label>
+      <label>
+        前景
+        <input type="color" v-model="scheme.foreground" @change="save" />
+      </label>
+      <label>
+        透明度
+        <input type="number" v-model.number="scheme.opacity" min="0.1" max="1" step="0.05" @change="save" />
+      </label>
+      <label>
+        圆角
+        <input type="number" v-model.number="scheme.radius" min="0" max="100" @change="save" />
+      </label>
+      <label>
+        <input type="checkbox" v-model="scheme.separated" @change="save" />
+        分离成多块
+      </label>
+      <label>
+        行间距
+        <input type="number" v-model.number="scheme.spacing" @change="save" />
+      </label>
+    </aside>
+    <main :class="{ canvas: editing }" @pointerdown="panStart">
+      <div
+        ref="shell"
+        class="custom-card"
+        :class="{ separated: scheme.separated }"
+        :style="[
+          shellStyle,
+          editing
+            ? {
+                transform: `translate(${pan.x}px,${pan.y}px) scale(${canvasScale})`,
+                width: 'max-content',
+                maxWidth: 'none',
+                maxHeight: 'none',
+              }
+            : {},
+        ]"
+      >
+        <div ref="inner" class="custom-inner" :style="{ zoom: scheme.scale }">
+          <section
+            v-for="(row, i) in scheme.rows"
+            :key="row.id"
+            :data-row="row.id"
+            class="layout-row"
+            :style="{ gap: `${row.gap}px` }"
+          >
+            <div v-if="editing" class="row-tools">
+              <button @pointerdown="startDrag($event, 'row', row.id)">⠿ 拖动行</button>
+              <input v-model="row.name" @change="save" />
+              <label>
+                间距
+                <input type="number" v-model.number="row.gap" @change="save" />
+              </label>
+              <button
+                @click="
+                  scheme.rows.forEach((r) => (r.main = r === row));
+                  save();
+                "
+              >
+                {{ row.main ? '主要行' : '设为主要行' }}
+              </button>
+              <label>
+                <input type="checkbox" v-model="row.allowNotifications" @change="save" />
+                允许通知
+              </label>
+              <button
+                :disabled="scheme.rows.length < 2"
+                @click="
+                  scheme.rows.splice(i, 1);
+                  save();
+                "
+              >
+                删除行
+              </button>
+            </div>
+            <div class="row-content">
+              <ComponentNode
+                v-for="n in row.nodes"
+                :key="n.id"
+                :node="n"
+                :state="state"
+                :now="now"
+                :schedules="schedules"
+                :editing="editing"
+                :selected-id="selectedId"
+                :alert-node-id="alertNodeId"
+                @select="selectedId = $event"
+                @drag="(e, id) => startDrag(e, 'node', id)"
+              >
+                <template #alerts><div id="custom-alert-host" :ref="hostRef" v-show="hasMessage" /></template>
+              </ComponentNode>
+              <div
+                v-if="row.id === alertRow?.id && !alertNodeId"
+                id="custom-alert-host"
+                :ref="hostRef"
+                v-show="hasMessage"
+              />
+            </div>
+            <button v-if="editing" @click="addRow(i)">在下方新建主界面行</button>
+          </section>
+        </div>
+      </div>
+    </main>
+    <div v-if="!alertRow" id="custom-alert-host" :ref="hostRef" style="display: none" />
+    <aside v-if="editing" class="settings">
+      <template v-if="selected">
+        <h3>{{ ISLAND_COMPONENT_LABELS[selected.kind] }} 组件设置</h3>
+        <button @click="remove">删除组件</button>
+        <button @click="duplicate">创建副本</button>
+        <label>
+          包裹到新容器
+          <select @change="wrap(($event.target as HTMLSelectElement).value as IslandComponentKind)">
+            <option value="">选择容器</option>
+            <option v-for="kind in ['slide', 'rolling', 'group', 'stack']" :key="kind" :value="kind">
+              {{ ISLAND_COMPONENT_LABELS[kind as IslandComponentKind] }}
+            </option>
+          </select>
+        </label>
+        <template v-if="selected.kind === 'clock'">
+          <label>
+            <input type="checkbox" v-model="selected.settings.hour12" @change="save" />
+            12 小时制
+          </label>
+          <label>
+            <input type="checkbox" v-model="selected.settings.seconds" @change="save" />
+            显示秒
+          </label>
+        </template>
+        <label v-if="selected.kind === 'countdown'">
+          倒计时目标
+          <select v-model="selected.settings.target" @change="save">
+            <option value="next">下一节课</option>
+            <option value="school">放学</option>
+          </select>
+        </label>
+        <template v-if="selected.kind === 'text'">
+          <textarea v-model="selected.settings.text" @change="save" />
+          <label>
+            <input type="checkbox" v-model="selected.settings.template" @change="save" />
+            模板文本（{date} {time} {course}）
+          </label>
+        </template>
+        <template v-if="selected.kind === 'schedule'">
+          <select v-model="selected.settings.display" @change="save">
+            <option value="current">当前课程</option>
+            <option value="next">下一节</option>
+            <option value="today">今日课表</option>
+          </select>
+          <label>
+            显示节数
+            <input type="number" v-model.number="selected.settings.count" @change="save" />
+          </label>
+          <label>
+            <input type="checkbox" v-model="selected.settings.showPeriod" @change="save" />
+            显示节次
+          </label>
+        </template>
+        <template v-if="['group', 'stack', 'slide', 'rolling'].includes(selected.kind)">
+          <select v-model="selected.settings.direction" @change="save">
+            <option value="horizontal">横向</option>
+            <option value="vertical">纵向</option>
+          </select>
+          <label>
+            间距
+            <input type="number" v-model.number="selected.settings.gap" @change="save" />
+          </label>
+          <label>
+            轮播间隔（秒）
+            <input type="number" v-model.number="selected.settings.interval" @change="save" />
+          </label>
+          <label>
+            滚动速度
+            <input type="number" v-model.number="selected.settings.speed" @change="save" />
+          </label>
+        </template>
+        <h4>通用外观</h4>
+        <label>
+          <input type="checkbox" v-model="selected.appearance.resourceOverridingEnabled" @change="save" />
+          启用资源覆盖
+        </label>
+        <label
+          v-for="font in [
+            'secondaryFontSize',
+            'bodyFontSize',
+            'emphasizedFontSize',
+            'largeFontSize',
+          ] as const"
+          :key="font"
+        >
+          {{
+            {
+              secondaryFontSize: '次级字号',
+              bodyFontSize: '正文字号',
+              emphasizedFontSize: '强调字号',
+              largeFontSize: '大号字号',
+            }[font]
+          }}
+          <input type="number" v-model.number="selected.appearance[font]" @change="save" />
+        </label>
+        <label>
+          <input type="checkbox" v-model="selected.appearance.customForegroundEnabled" @change="save" />
+          自定义前景色
+          <input type="color" v-model="selected.appearance.foreground" @change="save" />
+        </label>
+        <label>
+          <input type="checkbox" v-model="selected.appearance.customBackgroundEnabled" @change="save" />
+          自定义背景色
+          <input type="color" v-model="selected.appearance.background" @change="save" />
+        </label>
+        <label>
+          <input
+            type="checkbox"
+            v-model="selected.appearance.customBackgroundOpacityEnabled"
+            @change="save"
+          />
+          背景透明度
+          <input
+            type="number"
+            v-model.number="selected.appearance.backgroundOpacity"
+            min="0"
+            max="1"
+            step="0.05"
+            @change="save"
+          />
+        </label>
+        <label>
+          <input type="checkbox" v-model="selected.appearance.customCornerRadiusEnabled" @change="save" />
+          自定义圆角
+          <input type="number" v-model.number="selected.appearance.cornerRadius" @change="save" />
+        </label>
+        <label>
+          元素透明度
+          <input
+            type="number"
+            v-model.number="selected.appearance.opacity"
+            min="0"
+            max="1"
+            step="0.05"
+            @change="save"
+          />
+        </label>
+        <h4>高级设置</h4>
+        <label v-for="rule in ['in-class', 'no-message', 'no-class'] as const" :key="rule">
+          <input type="checkbox" v-model="selected.advanced.hideRules" :value="rule" @change="save" />
+          {{
+            { 'in-class': '上课时隐藏', 'no-message': '无消息时隐藏', 'no-class': '无当前课程时隐藏' }[rule]
+          }}
+        </label>
+        <label>
+          对齐（有宽度时生效）
+          <select v-model="selected.advanced.align" @change="save">
+            <option value="stretch">拉伸</option>
+            <option value="start">起始</option>
+            <option value="center">居中</option>
+            <option value="end">末端</option>
+          </select>
+        </label>
+        <label>
+          固定宽度（0 自适应）
+          <input type="number" v-model.number="selected.advanced.width" @change="save" />
+        </label>
+        <label>
+          宽度上限（超出右侧截断）
+          <input type="number" v-model.number="selected.advanced.maxWidth" @change="save" />
+        </label>
+      </template>
+      <p v-else>点选组件后显示它独立的设置。</p>
+      <p role="alert">{{ error }}</p>
+    </aside>
+  </div>
+</template>
+<style scoped>
+.custom-window {
+  padding: 10px;
+  width: 100vw;
+  height: 100vh;
+  box-sizing: border-box;
+}
+.custom-card {
+  box-sizing: border-box;
+  padding: 12px;
+  overflow: auto;
+  background: var(--custom-color);
+  border-radius: var(--custom-radius);
+  filter: drop-shadow(0 2px 3px #0003);
+}
+.custom-inner {
+  width: max-content;
+  min-width: 100%;
+  display: flex;
+  flex-direction: column;
+  gap: inherit;
+}
+.layout-row {
+  display: flex;
+  flex-direction: column;
+}
+.row-content {
+  display: flex;
+  align-items: center;
+  min-height: 24px;
+}
+.separated {
+  background: transparent;
+}
+.separated .layout-row {
+  background: var(--custom-color);
+  border-radius: var(--custom-radius);
+  padding: 8px;
+}
+.layout-editor {
+  position: fixed;
+  inset: 10px;
+  display: grid;
+  grid-template-columns: 200px minmax(0, 1fr) 280px;
+  grid-template-rows: auto 1fr;
+  color: var(--ch-text, #17202c);
+  background: var(--ch-surface, #f4f5f8);
+  border-radius: var(--ch-radius-lg, 16px);
+  overflow: hidden;
+  font:
+    14px 'Microsoft YaHei',
+    sans-serif;
+}
+.layout-editor header {
+  grid-column: 1/-1;
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+  padding: 12px;
+}
+.library,
+.settings {
+  overflow: auto;
+  padding: 12px;
+}
+.settings label,
+.library label {
+  display: block;
+  margin-block: 8px;
+}
+.canvas {
+  overflow: hidden;
+  touch-action: none;
+  padding: 80px 30px;
+  background: var(--ch-bg, #e3e5eb);
+}
+.canvas .custom-card {
+  transform-origin: top left;
+}
+.row-tools {
+  display: flex;
+  gap: 6px;
+  flex-wrap: wrap;
+  padding-bottom: 8px;
+}
+.layout-editor button,
+.layout-editor select,
+.layout-editor input:not([type='checkbox']),
+.layout-editor textarea {
+  max-width: 100%;
+  min-height: 36px;
+  font: inherit;
+  border: 1px solid var(--ch-border, #9ca6b4);
+  border-radius: var(--ch-radius-sm, 6px);
+  padding: 4px;
+}
+.layout-editor button {
+  touch-action: none;
+  cursor: pointer;
+}
+.library button {
+  margin: 3px;
+}
+.layout-editor input[type='number'] {
+  width: 70px;
+}
+.layout-editor input[type='file'] {
+  width: 110px;
+}
+</style>
diff --git a/packages/desktop-client/src/island/IslandApp.vue b/packages/desktop-client/src/island/IslandApp.vue
index b60612d..86b9ad2 100644
--- a/packages/desktop-client/src/island/IslandApp.vue
+++ b/packages/desktop-client/src/island/IslandApp.vue
@@ -1,4 +1,5 @@
 <script setup lang="ts">
+const props = defineProps<{ embedded?: boolean }>();
 import { computed, onMounted, ref } from 'vue';
 import {
   DEFAULT_ISLAND_APPEARANCE,
@@ -493,6 +494,7 @@ let hitRectTrailingTimer: number | null = null;
 
 /** 把岛体矩形上报给主进程：主进程按光标位置兜底校正命中（不依赖 mousemove 转发） */
 function reportHitRect(rect: DOMRect | null): void {
+  if (props.embedded) return;
   const payload = rect ? { x: rect.left, y: rect.top, width: rect.width, height: rect.height } : null;
   const key = payload
     ? `${Math.round(payload.x)},${Math.round(payload.y)},${Math.round(payload.width)},${Math.round(payload.height)}`
@@ -534,6 +536,7 @@ function reportHitRect(rect: DOMRect | null): void {
  * 用户点下去时窗口恰好处于穿透态，表现就是**点了没反应**（实测日志里 true/false 每几毫秒翻转一次）。
  */
 function updateInteractive(clientX: number, clientY: number): void {
+  if (props.embedded) return;
   lastPointer = { x: clientX, y: clientY };
   const node = document.querySelector('.island-card') as HTMLElement | null;
   let inside = false;
@@ -639,7 +642,11 @@ onMounted(async () => {
     固定包围盒窗口内的**单个**灵动岛（照搬 WinIsland）：
     岛的宽高/圆角由弹簧逐帧逼近，窗口本身不动；胶囊层与展开层在里面交叉淡入。
   -->
-  <div class="island-root">
+  <div
+    class="island-root"
+    :class="{ embedded: props.embedded }"
+    :style="props.embedded ? { width: `${morph.width}px`, height: `${morph.height}px` } : undefined"
+  >
     <div
       class="island-card"
       :class="islandClass"
@@ -896,6 +903,14 @@ body {
 
 /* ---------------------------------------------------------------- 卡片与形状 */
 
+.island-root.embedded .island-card {
+  left: 0 !important;
+  top: 0 !important;
+  right: auto !important;
+  bottom: auto !important;
+  transform: none !important;
+}
+
 .island-card {
   position: absolute;
   display: block;
diff --git a/packages/desktop-client/src/island/LayoutIslandApp.vue b/packages/desktop-client/src/island/LayoutIslandApp.vue
new file mode 100644
index 0000000..d550c85
--- /dev/null
+++ b/packages/desktop-client/src/island/LayoutIslandApp.vue
@@ -0,0 +1,66 @@
+<script setup lang="ts">
+import { nextTick, onMounted, ref, shallowRef } from 'vue';
+import {
+  defaultIslandLayouts,
+  type IslandLayoutSettings,
+  type IslandState,
+  type ScheduleDto,
+} from '@classhelper/shared';
+import FixedIsland from './IslandApp.vue';
+import CustomIsland from './CustomIsland.vue';
+const settings = ref(defaultIslandLayouts()),
+  editing = ref(false),
+  ready = ref(false);
+const schedules = ref<ScheduleDto[]>([]);
+const alertHost = shallowRef<HTMLElement | null>(null);
+const state = ref<IslandState>({
+  mode: 'hidden',
+  active: null,
+  queued: [],
+  inClass: false,
+  currentPeriodEnd: null,
+  reason: null,
+  listExpanded: false,
+  maxCardHeight: 1024,
+  updatedAt: 0,
+});
+async function save(value: IslandLayoutSettings) {
+  settings.value = await window.island!.saveLayout(JSON.parse(JSON.stringify(value)));
+}
+async function done() {
+  editing.value = false;
+  await window.island?.setEditing(false);
+}
+onMounted(async () => {
+  const bridge = window.island;
+  if (bridge) {
+    bridge.onLayout((value) => (settings.value = value));
+    bridge.onEditing((value) => (editing.value = value));
+    bridge.onSchedules((value) => (schedules.value = value));
+    bridge.onState((value) => (state.value = value));
+    settings.value = await bridge.getLayout();
+    state.value = await bridge.getState();
+    editing.value = await bridge.getEditing();
+  }
+  await nextTick();
+  ready.value = true;
+});
+</script>
+<template>
+  <CustomIsland
+    v-if="settings.layout === 'custom'"
+    :settings="settings"
+    :state="state"
+    :editing="editing"
+    :schedules="schedules"
+    @save="save"
+    @done="done"
+    @host="alertHost = $event"
+  />
+  <Teleport v-if="ready" :disabled="settings.layout === 'fixed' || !alertHost" :to="alertHost || 'body'">
+    <FixedIsland
+      v-show="settings.layout === 'fixed' || !!alertHost"
+      :embedded="settings.layout === 'custom'"
+    />
+  </Teleport>
+</template>
diff --git a/packages/desktop-client/src/island/main.ts b/packages/desktop-client/src/island/main.ts
index 7726a71..6fcbdb4 100644
--- a/packages/desktop-client/src/island/main.ts
+++ b/packages/desktop-client/src/island/main.ts
@@ -1,5 +1,5 @@
 import { createApp } from 'vue';
-import IslandApp from './IslandApp.vue';
+import IslandApp from './LayoutIslandApp.vue';
 import { applyMotionTokens } from '../renderer/composables/motion.js';
 
 /**
diff --git a/packages/desktop-client/src/main/auto-update.ts b/packages/desktop-client/src/main/auto-update.ts
index 76f158f..6b41aeb 100644
--- a/packages/desktop-client/src/main/auto-update.ts
+++ b/packages/desktop-client/src/main/auto-update.ts
@@ -1,3 +1,4 @@
+import type { ReleaseProgressDto as ContractReleaseProgressDto } from '@classhelper/shared';
 import crypto from 'node:crypto';
 import fs from 'node:fs';
 import fsp from 'node:fs/promises';
@@ -85,6 +86,29 @@ export function pendingUpdateDir(): string {
 let mainWindowHiddenAt: number | null = null;
 /** 本进程是否已经发起过安装（防止心跳与 hide 事件重复触发） */
 let installing = false;
+let updateProgress: ContractReleaseProgressDto = {
+  version: '',
+  stage: 'idle',
+  downloadedBytes: 0,
+  totalBytes: 0,
+  percent: null,
+  error: '',
+};
+export function getUpdateProgress() {
+  return { ...updateProgress };
+}
+let progressPublishedAt = 0;
+function publishProgress(patch: Partial<typeof updateProgress>) {
+  const previousStage = updateProgress.stage;
+  updateProgress = { ...updateProgress, ...patch };
+  updateProgress.percent = updateProgress.totalBytes
+    ? Math.min(100, Math.round((updateProgress.downloadedBytes / updateProgress.totalBytes) * 100))
+    : null;
+  if (previousStage === updateProgress.stage && Date.now() - progressPublishedAt < 250) return;
+  progressPublishedAt = Date.now();
+  for (const win of BrowserWindow.getAllWindows())
+    if (!win.isDestroyed()) win.webContents.send('client:update-progress', getUpdateProgress());
+}
 /**
  * 退出本进程的回调（由 index.ts 注册成既有的 `quitApp()`）。
  *
@@ -187,6 +211,7 @@ export async function considerUpdate(info: ClientUpdateInfoDto, targetVersion: s
   }
 
   downloading.add(version);
+  publishProgress({ version, stage: 'downloading', downloadedBytes: 0, totalBytes: info.size, error: '' });
   const startedAt = Date.now();
   try {
     fs.mkdirSync(dir, { recursive: true });
@@ -211,20 +236,24 @@ export async function considerUpdate(info: ClientUpdateInfoDto, targetVersion: s
     try {
       for await (const chunk of response.body as unknown as AsyncIterable<Uint8Array>) {
         await handle.write(chunk);
+        publishProgress({ downloadedBytes: updateProgress.downloadedBytes + chunk.byteLength });
       }
     } finally {
       await handle.close();
     }
 
+    publishProgress({ stage: 'verifying' });
     const digest = await sha256File(temp);
     const expected = info.sha256.trim().toLowerCase();
     if (!expected) {
       // 服务端没给哈希就没法校验：宁可不装，也不留一个来源不明的安装包在磁盘上
       await fsp.rm(temp, { force: true });
+      publishProgress({ stage: 'failed', error: '服务端未提供 sha256，拒绝更新' });
       logger.error(`更新 ${version} 的安装包没有提供 sha256，已删除（不做信任放行）`);
       return;
     }
     if (digest !== expected) {
+      publishProgress({ stage: 'failed', error: '安装包 sha256 校验失败' });
       await fsp.rm(temp, { force: true });
       logger.error(
         `更新 ${version} 的安装包校验失败（sha256 不符），已删除：期望 ${expected}，实际 ${digest}`,
@@ -234,6 +263,7 @@ export async function considerUpdate(info: ClientUpdateInfoDto, targetVersion: s
 
     await fsp.rm(target, { force: true });
     await fsp.rename(temp, target);
+    publishProgress({ stage: 'waiting' });
     if (loadPolicy()?.updateTargetVersion !== version) {
       removeManagedInstaller(target);
       return;
@@ -247,6 +277,7 @@ export async function considerUpdate(info: ClientUpdateInfoDto, targetVersion: s
     await maybeInstallPendingUpdate();
   } catch (error) {
     await fsp.rm(temp, { force: true }).catch(() => undefined);
+    publishProgress({ stage: 'failed', error: String(error) });
     logger.error(`下载更新 ${version} 失败：${error instanceof Error ? error.message : String(error)}`);
   } finally {
     downloading.delete(version);
@@ -342,6 +373,7 @@ export async function maybeInstallPendingUpdate(): Promise<void> {
   }
 
   installing = true;
+  publishProgress({ stage: 'installing' });
   logger.info(`开始静默安装更新 ${version}：${installer}`);
   try {
     const exe = app.getPath('exe');
diff --git a/packages/desktop-client/src/main/client-agent.ts b/packages/desktop-client/src/main/client-agent.ts
index 3a9ff59..b731fc1 100644
--- a/packages/desktop-client/src/main/client-agent.ts
+++ b/packages/desktop-client/src/main/client-agent.ts
@@ -2,7 +2,7 @@ import { spawn } from 'node:child_process';
 import os from 'node:os';
 import fs from 'node:fs';
 import path from 'node:path';
-import { BrowserWindow, app, dialog } from 'electron';
+import { BrowserWindow, app } from 'electron';
 import {
   CLIENT_COMMAND_LABELS,
   CLIENT_HEARTBEAT_INTERVAL_MS,
@@ -15,6 +15,7 @@ import {
   type ClientUpdateInfoDto,
 } from '@classhelper/shared';
 import { maybeInstallPendingUpdate, considerUpdate, syncUpdatePolicy } from './auto-update.js';
+import { connectionEvents, type ConnectionEvent } from './config-events.js';
 import { getConfig } from './config.js';
 import { island } from './island.js';
 import { logger } from './logger.js';
@@ -45,14 +46,6 @@ const UNAUTHORIZED_BACKOFF_MS = 5 * 60_000;
 /** 单次上报的超时：教室机网络慢，但也不能挂着不放 */
 const HEARTBEAT_TIMEOUT_MS = 10_000;
 
-/**
- * 远控命令的「本机二次确认」等待时长：60 秒内没人点确认就按取消处理。
- *
- * 为什么必须有这个超时：管理员在办公室下发关机，而教室里可能已经没人了 ——
- * 一个永远挂着等确认的对话框会让这条命令一直"待执行"，既没执行也看不出失败。
- */
-const COMMAND_CONFIRM_TIMEOUT_MS = 60_000;
-
 /**
  * 「在线」判定窗口：与 shared 的 `CLIENT_ONLINE_WINDOW_MS`（90 秒）同口径 ——
  * 连续丢两次心跳（30 秒 × 3）才算离线。这里不复用那个常量是因为它属于**服务端**的判定口径，
@@ -171,6 +164,7 @@ async function beat(): Promise<void> {
     return;
   }
 
+  const epoch = connectionEpoch;
   state.beating = true;
   let backoff = false;
   try {
@@ -194,6 +188,7 @@ async function beat(): Promise<void> {
       signal: AbortSignal.timeout(HEARTBEAT_TIMEOUT_MS),
     });
 
+    if (epoch !== connectionEpoch) return;
     if (response.status === 401 || response.status === 403) {
       // 令牌失效：退避到 5 分钟一次，直到用户重新登录
       backoff = true;
@@ -209,6 +204,7 @@ async function beat(): Promise<void> {
 
     const envelope = (await response.json()) as ApiResponse<ClientHeartbeatResponse>;
     if (!envelope.success || !envelope.data?.deviceId) throw new Error('心跳响应格式不正确');
+    if (epoch !== connectionEpoch) return;
     const payload = envelope.data;
     state.lastHeartbeatAt = new Date().toISOString();
     state.lastError = '';
@@ -226,13 +222,16 @@ async function beat(): Promise<void> {
     );
   } catch (error) {
     // 网络错误 / 超时 / JSON 解析失败：按原节奏重试
+    if (epoch !== connectionEpoch) return;
     state.lastError = error instanceof Error ? error.message : String(error);
     logger.warn(`客户端上报失败（将于 ${HEARTBEAT_INTERVAL_TEXT} 后重试）：${state.lastError}`);
   } finally {
     state.beating = false;
     // 每次心跳后检查已下载的更新是否满足安装策略。
     void maybeInstallPendingUpdate();
-    scheduleNext(backoff ? UNAUTHORIZED_BACKOFF_MS : CLIENT_HEARTBEAT_INTERVAL_MS);
+    scheduleNext(
+      epoch !== connectionEpoch ? 0 : backoff ? UNAUTHORIZED_BACKOFF_MS : CLIENT_HEARTBEAT_INTERVAL_MS,
+    );
   }
 }
 
@@ -241,14 +240,9 @@ const HEARTBEAT_INTERVAL_TEXT = `${Math.round(CLIENT_HEARTBEAT_INTERVAL_MS / 100
 /**
  * 服务端下发的远控命令（关机 / 重启 / 注销 / 锁屏）。
  *
- * 两道护栏缺一不可（用户要求「必须二次确认」）：
- * 1. **本机二次确认**：弹一个默认选中「取消」的对话框，60 秒不确认按取消处理 ——
- *    服务端那边虽然也确认过，但真正会被关掉的机器上必须有人当场知道；
- * 2. **同一条命令只执行一次**：等待确认时内存去重，处理结果落盘，重启后也只重试回执。
- *
- * 执行后**必须回执**（`POST /api/clients/commands/:id/ack`，body 带 deviceKey）：
- * 否则服务端那条命令会一直挂在"待执行"里，Web 端看不到结果。回执失败时把结果暂存，
- * 下一次心跳只重试回执、不重复弹窗。
+ * 按产品要求收到即执行，保留十分钟有效期、持久去重与设备归属校验。
+ * 执行结果必须回执；网络失败只重试回执，不重复执行。
+ * 冒烟在执行器处强制返回假结果，永不调用系统命令。
  */
 const inFlightCommands = new Set<string>();
 type CommandOutcome = { ok: boolean; result: string };
@@ -286,6 +280,7 @@ function rememberCommand(commandId: string, outcome: CommandOutcome): void {
 
 async function handleCommand(command: ClientCommandDto | null): Promise<void> {
   if (!command) return;
+  const commandConfig = getConfig();
   const label = CLIENT_COMMAND_LABELS[command.kind] ?? command.kind;
 
   const expired =
@@ -297,65 +292,38 @@ async function handleCommand(command: ClientCommandDto | null): Promise<void> {
     return;
   }
 
-  // 正在确认或执行时不能用预存的中间结果抢先回执。
+  // 正在执行时不能用预存的中间结果抢先回执。
   if (inFlightCommands.has(command.id)) return;
   // 处理过但回执没送达：只重试回执
   readCommandResults();
   const pending = commandResults.get(command.id);
   if (pending) {
-    await ackCommand(command.id, pending.ok, pending.result);
+    await ackCommand(command.id, pending.ok, pending.result, commandConfig);
     return;
   }
   inFlightCommands.add(command.id);
   try {
-    const confirmed = await confirmCommand(label, command.payload);
-    if (!confirmed) {
-      const result = '本机用户取消（或 60 秒未确认）';
-      logger.warn(`远控命令「${label}」未执行：${result}`);
-      await ackCommand(command.id, false, result);
-      return;
-    }
     // 注销可能立刻结束本进程，先落盘，重启后不能再次执行同一条指令。
     rememberCommand(command.id, {
       ok: false,
-      result: '本机已确认并提交系统执行，最终结果未回传，请核对设备状态',
+      result: '已提交系统执行，最终结果未回传，请核对设备状态',
     });
+    if (getConfig().serverUrl !== commandConfig.serverUrl || getConfig().token !== commandConfig.token)
+      return;
     const outcome = await executeCommand(command.kind);
     logger.warn(`远控命令「${label}」执行${outcome.ok ? '成功' : '失败'}：${outcome.result}`);
-    await ackCommand(command.id, outcome.ok, outcome.result);
+    await ackCommand(command.id, outcome.ok, outcome.result, commandConfig);
   } finally {
     inFlightCommands.delete(command.id);
   }
 }
 
-/** 本机二次确认对话框：默认「取消」，60 秒未操作按取消处理 */
-async function confirmCommand(label: string, note: string): Promise<boolean> {
-  const controller = new AbortController();
-  const timer = setTimeout(() => controller.abort(), COMMAND_CONFIRM_TIMEOUT_MS);
-  const answered = dialog
-    .showMessageBox({
-      signal: controller.signal,
-      type: 'warning',
-      title: '来自管理员的远程指令',
-      message: `管理员要求本机「${label}」`,
-      detail: `${note ? `备注：${note}\n` : ''}确认后本机将立即${label}；60 秒内未确认视为取消。`,
-      buttons: ['取消', '确认执行'],
-      defaultId: 0,
-      cancelId: 0,
-      noLink: true,
-    })
-    .then((result) => !controller.signal.aborted && result.response === 1)
-    .catch(() => false);
-
-  try {
-    return await answered;
-  } finally {
-    clearTimeout(timer);
-  }
-}
-
 /** 执行系统命令：只支持 Windows（本项目客户端只发 Windows 版） */
 async function executeCommand(kind: ClientCommandKind): Promise<{ ok: boolean; result: string }> {
+  if (process.env.ELECTRON_SMOKE_TEST === '1')
+    return { ok: true, result: '冒烟假执行器：已接收，未调用系统命令' };
+  if (!['shutdown', 'restart', 'logoff', 'lock'].includes(kind))
+    return { ok: false, result: '未知的远控动作' };
   if (process.platform !== 'win32') return { ok: false, result: '仅支持 Windows' };
 
   const commands: Record<ClientCommandKind, { file: string; args: string[] }> = {
@@ -390,9 +358,14 @@ async function executeCommand(kind: ClientCommandKind): Promise<{ ok: boolean; r
 }
 
 /** 回执：服务端用 body 里的 deviceKey 校验"这条命令是发给这台机器的" */
-async function ackCommand(commandId: string, ok: boolean, result: string): Promise<void> {
+async function ackCommand(
+  commandId: string,
+  ok: boolean,
+  result: string,
+  config: ReturnType<typeof getConfig>,
+): Promise<void> {
   rememberCommand(commandId, { ok, result });
-  const config = getConfig();
+  // 回执始终发给接收命令时的服务器，切换实例不能把旧命令带到新实例。
   if (!config.token) return;
   try {
     const response = await fetch(`${config.serverUrl}/api/clients/commands/${commandId}/ack`, {
@@ -426,6 +399,19 @@ async function handleUpdate(info: ClientUpdateInfoDto | null, targetVersion: str
   await considerUpdate(info, target);
 }
 
+let connectionEpoch = 0;
+/** 显式身份事件清除旧服务端退避；旧请求返回也不得覆盖新服务器状态。 */
+export function resetClientAgent(reason: ConnectionEvent): void {
+  connectionEpoch++;
+  clearTimer();
+  state.lastHeartbeatAt = null;
+  state.lastError = '';
+  state.updateTargetVersion = '';
+  logger.info(`客户端连接状态已重置：${reason}`);
+  if (state.running && !state.beating) scheduleNext(0);
+}
+connectionEvents.on('changed', resetClientAgent);
+
 /** 启动心跳（重复调用无副作用） */
 export function startClientAgent(): void {
   if (state.running) return;
diff --git a/packages/desktop-client/src/main/config-events.ts b/packages/desktop-client/src/main/config-events.ts
new file mode 100644
index 0000000..81043f2
--- /dev/null
+++ b/packages/desktop-client/src/main/config-events.ts
@@ -0,0 +1,6 @@
+import { EventEmitter } from 'node:events';
+export type ConnectionEvent = 'server-changed' | 'token-changed' | 'login' | 'logout';
+export const connectionEvents = new EventEmitter();
+export function connectionChanged(event: ConnectionEvent) {
+  connectionEvents.emit('changed', event);
+}
diff --git a/packages/desktop-client/src/main/config.ts b/packages/desktop-client/src/main/config.ts
index b3f7a58..6b6fb70 100644
--- a/packages/desktop-client/src/main/config.ts
+++ b/packages/desktop-client/src/main/config.ts
@@ -1,9 +1,12 @@
+import type { IslandLayoutSettings as ContractIslandLayoutSettings } from '@classhelper/shared';
+import { connectionChanged } from './config-events.js';
 import crypto from 'node:crypto';
 import fs from 'node:fs';
 import path from 'node:path';
 import { app, safeStorage } from 'electron';
 import {
   DEFAULT_ISLAND_APPEARANCE,
+  normalizeIslandLayouts,
   DEFAULT_SERVER_URL,
   HOMEWORK_PHRASE_DEFAULTS,
   HOMEWORK_PHRASE_MAX_COUNT,
@@ -21,6 +24,7 @@ const DEFAULT_HOMEWORK_BOARD: HomeworkBoardSettings = {
 };
 
 interface PersistedConfig {
+  islandLayout?: ContractIslandLayoutSettings;
   serverUrl: string;
   username: string;
   /** 加密后的 token（base64）或明文（当系统不支持加密时） */
@@ -194,6 +198,7 @@ function readPersistedFromDisk(): PersistedConfig {
     const content = fs.readFileSync(configFilePath(), 'utf8');
     const parsed = JSON.parse(content) as Partial<PersistedConfig>;
     return {
+      islandLayout: normalizeIslandLayouts(parsed.islandLayout),
       serverUrl:
         typeof parsed.serverUrl === 'string' && parsed.serverUrl
           ? (normalizeServerUrl(parsed.serverUrl) ?? DEFAULT_CONFIG.serverUrl)
@@ -360,6 +365,7 @@ function normalizeServerUrl(input: string): string | null {
 function toDesktopConfig(state: ConfigCache): DesktopStoredConfig {
   const persisted = state.config;
   return {
+    islandLayout: normalizeIslandLayouts(persisted.islandLayout),
     serverUrl: persisted.serverUrl,
     username: persisted.username,
     token: state.token,
@@ -425,6 +431,9 @@ export function getConfig(): DesktopStoredConfig {
 export function saveConfig(patch: Partial<DesktopStoredConfig>): DesktopStoredConfig {
   const state = loadCache();
   const persisted = state.config;
+  if (patch.islandLayout !== undefined) persisted.islandLayout = normalizeIslandLayouts(patch.islandLayout);
+  const oldServer = persisted.serverUrl;
+  const oldToken = state.token;
 
   if (typeof patch.serverUrl === 'string' && patch.serverUrl.trim()) {
     const normalized = normalizeServerUrl(patch.serverUrl);
@@ -485,6 +494,8 @@ export function saveConfig(patch: Partial<DesktopStoredConfig>): DesktopStoredCo
   if (typeof patch.deviceKey === 'string' && patch.deviceKey && patch.deviceKey !== persisted.deviceKey) {
     logger.warn('忽略对设备标识（deviceKey）的改写：它是这台机器在服务端的身份，不允许变更');
   }
+  if (persisted.serverUrl !== oldServer && (!patch.token || patch.token === oldToken))
+    patch = { ...patch, token: null };
   if (patch.token !== undefined) {
     const encrypted = encryptToken(patch.token);
     persisted.token = encrypted.token;
@@ -494,6 +505,11 @@ export function saveConfig(patch: Partial<DesktopStoredConfig>): DesktopStoredCo
   }
 
   scheduleWrite(persisted);
+  if (persisted.serverUrl !== oldServer) connectionChanged('server-changed');
+  if (state.token !== oldToken) {
+    connectionChanged('token-changed');
+    connectionChanged(state.token ? 'login' : 'logout');
+  }
   return toDesktopConfig(state);
 }
 
@@ -508,6 +524,7 @@ export function clearConfig(): DesktopStoredConfig {
   const current = cache?.config ?? DEFAULT_CONFIG;
   const kept: PersistedConfig = {
     ...DEFAULT_CONFIG,
+    islandLayout: normalizeIslandLayouts(current.islandLayout),
     deviceKey: current.deviceKey ?? '',
     autoLaunch: current.autoLaunch === true,
     autoUpdate: current.autoUpdate !== false,
@@ -519,6 +536,7 @@ export function clearConfig(): DesktopStoredConfig {
   ensureDeviceKey(kept);
   const state: ConfigCache = { config: kept, token: null };
   cache = state;
+  connectionChanged('logout');
   scheduleWrite(state.config, true);
   return toDesktopConfig(state);
 }
diff --git a/packages/desktop-client/src/main/ipc.ts b/packages/desktop-client/src/main/ipc.ts
index ca26a8e..036e91e 100644
--- a/packages/desktop-client/src/main/ipc.ts
+++ b/packages/desktop-client/src/main/ipc.ts
@@ -1,3 +1,5 @@
+import { island } from './island.js';
+import { getUpdateProgress } from './auto-update.js';
 import { app, BrowserWindow, ipcMain, shell } from 'electron';
 import type { UpdateInfo } from '@classhelper/shared';
 import { IPC_CHANNELS } from './channels.js';
@@ -12,6 +14,7 @@ import type { DesktopAppInfo, DesktopStoredConfig } from '../types/desktop.js';
 export { IPC_CHANNELS };
 
 export function registerIpcHandlers(): void {
+  ipcMain.handle('client:get-update-progress', () => getUpdateProgress());
   ipcMain.handle(IPC_CHANNELS.getConfig, (): DesktopStoredConfig => getConfig());
 
   ipcMain.handle(
@@ -21,7 +24,9 @@ export function registerIpcHandlers(): void {
       const allowed = { ...patch };
       delete allowed.pendingUpdateFile;
       delete allowed.pendingUpdateVersion;
-      return saveConfig(allowed);
+      const saved = saveConfig(allowed);
+      if (allowed.islandLayout) island.syncCustomLayout();
+      return saved;
     },
   );
 
diff --git a/packages/desktop-client/src/main/island.ts b/packages/desktop-client/src/main/island.ts
index ce48bbc..593a1f8 100644
--- a/packages/desktop-client/src/main/island.ts
+++ b/packages/desktop-client/src/main/island.ts
@@ -1,8 +1,10 @@
+import type { ScheduleDto as ContractScheduleDto } from '@classhelper/shared';
 import path from 'node:path';
 import { pathToFileURL } from 'node:url';
 import { BrowserWindow, ipcMain, screen } from 'electron';
 import {
   DEFAULT_ISLAND_APPEARANCE,
+  normalizeIslandLayouts,
   ISLAND_POSITIONS,
   ISLAND_SHADOW_PAD,
   ISLAND_SIZE_DELTA,
@@ -17,7 +19,7 @@ import {
   type IslandState,
 } from '@classhelper/shared';
 import { logger } from './logger.js';
-import { getConfig } from './config.js';
+import { getConfig, saveConfig } from './config.js';
 
 /** 生产环境的灵动岛页面地址（导航白名单的精确比对用） */
 const prodIslandUrl = pathToFileURL(path.join(__dirname, '../renderer/island.html')).href;
@@ -130,6 +132,7 @@ export interface IslandPushContext {
 }
 
 export interface IslandClassStatePayload {
+  schedules?: ContractScheduleDto[];
   inClass: boolean;
   currentPeriodEnd?: string | null;
   week?: number;
@@ -189,6 +192,70 @@ class IslandController {
    * 只有投影所需的 10px 留白，不再吞掉桌面点击。
    */
   private touchMode = false;
+  private editingLayout = false;
+  private customSize = { width: 424, height: 80 };
+  private customDesiredSize = { width: 424, height: 80 };
+  private customTimer: ReturnType<typeof setTimeout> | null = null;
+  private get customLayout(): boolean {
+    return getConfig().islandLayout.layout === 'custom';
+  }
+  getEditingLayout(): boolean {
+    return this.editingLayout;
+  }
+  syncCustomLayout(): void {
+    this.win?.webContents.send('island:layout', getConfig().islandLayout);
+    this.syncWindow();
+  }
+  editLayout(enabled = true): void {
+    this.editingLayout = enabled;
+    if (enabled) saveConfig({ islandLayout: { ...getConfig().islandLayout, layout: 'custom' } });
+    this.win?.webContents.send('island:layout', getConfig().islandLayout);
+    this.win?.webContents.send('island:editing', enabled);
+    if (this.win && !this.win.isDestroyed()) {
+      this.win.hide();
+      if (enabled) {
+        const area = screen.getDisplayNearestPoint(this.win.getBounds()).workArea;
+        this.win.setBounds(area);
+        this.win.setOpacity(1);
+        if (!(process.env.ELECTRON_SMOKE_TEST === '1' && process.env.ELECTRON_SMOKE_MODE !== 'visual')) {
+          this.win.show();
+          this.win.focus();
+        }
+        this.setInteractive(true, '布局编辑');
+      } else {
+        const area = screen.getDisplayNearestPoint(this.win.getBounds()).workArea;
+        this.customSize = {
+          width: Math.max(40, Math.min(this.customDesiredSize.width, area.width - 2 * ISLAND_SHADOW_PAD)),
+          height: Math.max(24, Math.min(this.customDesiredSize.height, area.height - 2 * ISLAND_SHADOW_PAD)),
+        };
+        this.win.webContents.send('island:viewport', this.customSize);
+        this.applyWindowLayout();
+        this.syncWindow();
+      }
+    }
+  }
+  reportCustomSize(value: { width: number; height: number }): void {
+    if (!this.customLayout || !Number.isFinite(value?.width) || !Number.isFinite(value?.height)) return;
+    this.customDesiredSize = { ...value };
+    if (this.editingLayout) return;
+    if (this.customTimer) clearTimeout(this.customTimer);
+    this.customTimer = setTimeout(() => {
+      this.customTimer = null;
+      if (!this.win || !this.customLayout || this.editingLayout) return;
+      const area = screen.getDisplayNearestPoint(this.win.getBounds()).workArea;
+      const current = this.win.getBounds();
+      const width = Math.max(40, Math.min(Math.ceil(value.width), area.width - 2 * ISLAND_SHADOW_PAD));
+      const height = Math.max(24, Math.min(Math.ceil(value.height), area.height - 2 * ISLAND_SHADOW_PAD));
+      // 可见/编辑期间不主动缩窗；只有隐藏后收缩。渲染器按获准尺寸铺底，窗口=卡片+2×留白。
+      this.customSize = {
+        width: this.win.isVisible() ? Math.max(width, current.width - 2 * ISLAND_SHADOW_PAD) : width,
+        height: this.win.isVisible() ? Math.max(height, current.height - 2 * ISLAND_SHADOW_PAD) : height,
+      };
+      this.applyWindowLayout();
+      this.win.webContents.send('island:viewport', this.customSize);
+      this.setHitRect({ x: ISLAND_SHADOW_PAD, y: ISLAND_SHADOW_PAD, ...this.customSize });
+    }, 120);
+  }
   /** 渲染进程上报的岛体矩形（窗口内 CSS px）：主进程据此做光标命中兜底轮询 */
   private hitRect: { x: number; y: number; width: number; height: number } | null = null;
   /** 光标命中兜底轮询定时器（见 syncHitFromCursor 注释） */
@@ -334,6 +401,7 @@ class IslandController {
      * 因此这里再用**指针位置**兜一层：指针还在岛上就绝不收起（详见 isCursorOnIsland）。
      */
     win.on('blur', () => {
+      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;
@@ -346,7 +414,7 @@ class IslandController {
       }
       // 触摸屏上没有"指针"可依据（isCursorOnIsland 恒为 false），只能用更宽的宽限期覆盖
       // 上面实测到的 70~520ms 抖动区间，否则手指点开后约 0.5s 会莫名缩回胶囊。
-      const grace = this.touchMode ? BLUR_GRACE_TOUCH_MS : BLUR_GRACE_MS;
+      const grace = this.touchMode || this.editingLayout ? BLUR_GRACE_TOUCH_MS : BLUR_GRACE_MS;
       if (sinceActivated < grace) {
         logger.info(`灵动岛：忽略激活后 ${sinceActivated}ms 内的失焦（宽限期内不收起）`);
         return;
@@ -605,6 +673,8 @@ class IslandController {
 
   /** 上课状态变化：进入上课隐藏；下课则自动弹出队列 */
   setClassState(payload: IslandClassStatePayload): void {
+    if (Array.isArray(payload.schedules))
+      this.win?.webContents.send('island:schedules', payload.schedules.slice(0, 100));
     const wasInClass = this.state.inClass;
     this.state.inClass = payload.inClass;
     this.state.currentPeriodEnd = payload.currentPeriodEnd ?? null;
@@ -845,6 +915,26 @@ class IslandController {
     if (this.state.active || this.state.queued.length > 0) return;
     this.fadeOut();
     this.setState({ mode: 'hidden', reason: null }, { skipWindow: true });
+    if (this.customLayout)
+      setTimeout(() => {
+        // 提醒沿原路径收回后，隐藏窗口再缩回组件栏；时钟等普通组件继续显示。
+        if (
+          !this.win ||
+          this.win.isDestroyed() ||
+          !this.customLayout ||
+          this.editingLayout ||
+          this.state.mode !== 'hidden'
+        )
+          return;
+        this.win.hide();
+        const area = screen.getDisplayNearestPoint(this.win.getBounds()).workArea;
+        this.customSize = {
+          width: Math.max(40, Math.min(this.customDesiredSize.width, area.width - 2 * ISLAND_SHADOW_PAD)),
+          height: Math.max(24, Math.min(this.customDesiredSize.height, area.height - 2 * ISLAND_SHADOW_PAD)),
+        };
+        this.win.webContents.send('island:viewport', this.customSize);
+        this.syncWindow();
+      }, 200);
   }
 
   /**
@@ -1081,6 +1171,22 @@ class IslandController {
    */
   private syncWindow(): void {
     if (!this.win || this.win.isDestroyed()) return;
+    if (this.editingLayout) {
+      this.setInteractive(true, '布局编辑');
+      return;
+    }
+    if (this.customLayout) {
+      this.cancelFade();
+      this.applyWindowLayout();
+      this.win.setOpacity(this.appearance.opacity);
+      if (
+        !this.win.isVisible() &&
+        !(process.env.ELECTRON_SMOKE_TEST === '1' && process.env.ELECTRON_SMOKE_MODE !== 'visual')
+      )
+        this.win.showInactive();
+      this.setInteractive(true, '自定义组件栏');
+      return;
+    }
 
     // 上课时间段：一律不显示灵动岛（只有"正在展示的紧急通知 / 叫人"允许出现在屏幕上）
     // 上课时段：只有"紧急通知 / 叫人"允许出现在屏幕上——展开态与胶囊态都算
@@ -1141,6 +1247,11 @@ class IslandController {
    * - 触摸模式：贴合当前形态（岛体 + 2×阴影留白），否则大包围盒的透明区会吞掉桌面的触摸。
    */
   private windowBox(): { width: number; height: number } {
+    if (this.customLayout)
+      return {
+        width: this.customSize.width + 2 * ISLAND_SHADOW_PAD,
+        height: this.customSize.height + 2 * ISLAND_SHADOW_PAD,
+      };
     const size = this.formSize();
     if (!this.touchMode) {
       return {
@@ -1200,6 +1311,7 @@ class IslandController {
   private applyWindowLayout(): void {
     if (!this.win || this.win.isDestroyed()) return;
     const next = this.windowBounds();
+    if (this.editingLayout) return;
     const current = this.win.getBounds();
     if (
       current.x === next.x &&
@@ -1236,6 +1348,15 @@ class IslandController {
     }
     const y = anchor.vMode === 'bottom' ? anchor.vValue + pad - height : anchor.vValue - pad;
 
+    if (this.customLayout) {
+      const area = screen.getDisplayNearestPoint({ x, y }).workArea;
+      return {
+        x: Math.max(area.x, Math.min(x, area.x + area.width - width)),
+        y: Math.max(area.y, Math.min(y, area.y + area.height - height)),
+        width: Math.min(width, area.width),
+        height: Math.min(height, area.height),
+      };
+    }
     return { x, y, width, height };
   }
 
@@ -1254,6 +1375,7 @@ class IslandController {
    */
   private applyFocusable(): void {
     if (!this.win || this.win.isDestroyed()) return;
+    if (this.editingLayout) return;
     if (!this.win.isFocusable()) this.win.setFocusable(true);
     if (this.state.mode === 'expanded') {
       this.win.focus();
@@ -1390,7 +1512,11 @@ 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 ? true : interactive;
+    const next = passthrough
+      ? false
+      : this.touchMode || this.editingLayout || this.customLayout
+        ? true
+        : interactive;
     if (this.interactive === next) return;
     this.interactive = next;
     logger.info(
@@ -1497,6 +1623,7 @@ class IslandController {
 
   /** 当前形态下**岛本身**的尺寸（不是窗口尺寸；响应进程的 `.island-card` 宽高） */
   private formSize(): { width: number; height: number } {
+    if (this.customLayout) return this.customSize;
     // 多条通知的列表形态：高度由统一布局算法算出（渲染进程算的是同一个数）
     const layout = this.listLayout();
     if (layout) return { width: SIZES.expanded.width, height: layout.height };
@@ -1868,6 +1995,19 @@ export const island = new IslandController();
 
 /** 注册灵动岛相关 IPC（主窗口渲染进程 -> 主进程；灵动岛渲染进程 -> 主进程） */
 export function registerIslandIpc(): void {
+  ipcMain.handle('island:get-layout', () => getConfig().islandLayout);
+  ipcMain.handle('island:save-layout', (_event, value: unknown) => {
+    const result = saveConfig({ islandLayout: normalizeIslandLayouts(value) }).islandLayout;
+    island.syncCustomLayout();
+    return result;
+  });
+  ipcMain.handle('island:edit-layout', () => island.editLayout());
+  ipcMain.handle('island:get-editing', () => island.getEditingLayout());
+  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);
+  });
+
   ipcMain.on('island:remove-notification', (_event, id: string) => {
     if (typeof id === 'string') island.removeNotification(id);
   });
diff --git a/packages/desktop-client/src/main/smoke-agent.ts b/packages/desktop-client/src/main/smoke-agent.ts
new file mode 100644
index 0000000..04d53b2
--- /dev/null
+++ b/packages/desktop-client/src/main/smoke-agent.ts
@@ -0,0 +1,168 @@
+import { createHash } from 'node:crypto';
+import { considerUpdate, getUpdateProgress, syncUpdatePolicy } from './auto-update.js';
+import { createServer } from 'node:http';
+import { app } from 'electron';
+import { getConfig, saveConfig } from './config.js';
+import { beatNow, getClientAgentStatus, stopClientAgent, startClientAgent } from './client-agent.js';
+export async function verifyAgentSmoke(
+  check: (name: string, action: () => Promise<boolean | string> | boolean) => Promise<void>,
+) {
+  const original = getConfig(),
+    previous = process.env.ELECTRON_SMOKE_CLIENT_AGENT;
+  let firstCalls = 0,
+    secondCalls = 0,
+    acked = false,
+    invalidToken = false;
+  const one = createServer((req, res) => {
+    firstCalls++;
+    res.writeHead(401, { 'content-type': 'application/json' });
+    res.end('{}');
+  });
+  const two = createServer((req, res) => {
+    if (req.headers.authorization !== 'Bearer v14-local-fake-token') invalidToken = true;
+    if (req.url === '/fake-installer') {
+      res.setHeader('content-length', String(Buffer.byteLength('仅测试，不是可执行文件')));
+      res.end('仅测试，不是可执行文件');
+      return;
+    }
+    res.setHeader('content-type', 'application/json');
+    if (req.url?.includes('/ack')) {
+      let body = '';
+      req.on('data', (c) => (body += c));
+      req.on('end', () => {
+        const value = JSON.parse(body);
+        acked =
+          value.deviceKey === original.deviceKey &&
+          value.ok === true &&
+          value.result.includes('冒烟假执行器');
+        res.end(JSON.stringify({ success: true, data: {} }));
+      });
+      return;
+    }
+    secondCalls++;
+    res.end(
+      JSON.stringify({
+        success: true,
+        data: {
+          deviceId: 'local-smoke-device',
+          serverTime: new Date().toISOString(),
+          updateTargetVersion: null,
+          updateMode: 'idle',
+          update: null,
+          command: acked
+            ? null
+            : {
+                id: `local-smoke-${app.getVersion()}-${Date.now()}`,
+                deviceId: 'local-smoke-device',
+                kind: 'lock',
+                payload: '仅假执行',
+                createdAt: new Date().toISOString(),
+                expiresAt: new Date(Date.now() + 60000).toISOString(),
+                ackedAt: null,
+                result: '',
+              },
+        },
+      }),
+    );
+  });
+  await Promise.all([
+    new Promise<void>((r) => one.listen(0, '127.0.0.1', r)),
+    new Promise<void>((r) => two.listen(0, '127.0.0.1', r)),
+  ]);
+  const url = (server: typeof one) => `http://127.0.0.1:${(server.address() as { port: number }).port}`;
+  try {
+    process.env.ELECTRON_SMOKE_CLIENT_AGENT = '1';
+    stopClientAgent();
+    saveConfig({ serverUrl: url(one), token: 'v14-old-fake-token' });
+    startClientAgent();
+    await beatNow();
+    await check(
+      '401 后明确进入退避状态',
+      () => firstCalls > 0 && getClientAgentStatus().lastError.includes('401'),
+    );
+    const begin = Date.now();
+    saveConfig({ serverUrl: url(two) });
+    await check(
+      '换服务端清除旧令牌与退避，设备身份保持不变',
+      () =>
+        getConfig().token === null &&
+        getConfig().deviceKey === original.deviceKey &&
+        !getClientAgentStatus().lastError,
+    );
+    saveConfig({ token: 'v14-local-fake-token' });
+    await beatNow();
+    await check('新服务端登录后30秒内自动心跳', async () => {
+      const deadline = Date.now() + 3000;
+      while (secondCalls === 0 && Date.now() < deadline) await new Promise((r) => setTimeout(r, 30));
+      return secondCalls > 0 && Date.now() - begin < 30000 && getClientAgentStatus().online && !invalidToken;
+    });
+    await check('收到远控立即假执行并以deviceKey回执（未调用系统命令）', async () => {
+      const deadline = Date.now() + 3000;
+      while (!acked && Date.now() < deadline) await new Promise((r) => setTimeout(r, 30));
+      return acked;
+    });
+    await check('安装包哈希失败会显示失败并拒绝待安装记录', async () => {
+      saveConfig({ autoUpdate: true });
+      const info = {
+        version: '99.0.0',
+        fileName: 'smoke-update.exe',
+        size: Buffer.byteLength('仅测试，不是可执行文件'),
+        sha256: 'bad',
+        notes: '仅本机假数据',
+        url: '/fake-installer',
+      };
+      syncUpdatePolicy({
+        deviceId: 'local-smoke-device',
+        serverTime: new Date().toISOString(),
+        command: null,
+        update: null,
+        updateTargetVersion: info.version,
+        updateMode: 'idle',
+        updateNotBefore: null,
+      });
+      await considerUpdate(info, info.version);
+      return (
+        getUpdateProgress().stage === 'failed' &&
+        getUpdateProgress().error.includes('sha256') &&
+        getConfig().pendingUpdateVersion !== info.version
+      );
+    });
+    await check('下载字节与校验完成显示等待安装（冒烟禁止运行安装器）', async () => {
+      const info = {
+        version: '99.0.1',
+        fileName: 'smoke-update.exe',
+        size: Buffer.byteLength('仅测试，不是可执行文件'),
+        sha256: createHash('sha256').update('仅测试，不是可执行文件').digest('hex'),
+        notes: '仅本机假数据',
+        url: '/fake-installer',
+      };
+      syncUpdatePolicy({
+        deviceId: 'local-smoke-device',
+        serverTime: new Date().toISOString(),
+        command: null,
+        update: null,
+        updateTargetVersion: info.version,
+        updateMode: 'idle',
+        updateNotBefore: null,
+      });
+      await considerUpdate(info, info.version);
+      const progress = getUpdateProgress();
+      return (
+        progress.stage === 'waiting' &&
+        progress.percent === 100 &&
+        progress.downloadedBytes === info.size &&
+        getConfig().pendingUpdateVersion === info.version
+      );
+    });
+  } finally {
+    stopClientAgent();
+    saveConfig(original);
+    if (previous === undefined) delete process.env.ELECTRON_SMOKE_CLIENT_AGENT;
+    else process.env.ELECTRON_SMOKE_CLIENT_AGENT = previous;
+    startClientAgent();
+    await Promise.all([
+      new Promise<void>((r) => one.close(() => r())),
+      new Promise<void>((r) => two.close(() => r())),
+    ]);
+  }
+}
diff --git a/packages/desktop-client/src/main/smoke-layout.ts b/packages/desktop-client/src/main/smoke-layout.ts
new file mode 100644
index 0000000..27ef7c2
--- /dev/null
+++ b/packages/desktop-client/src/main/smoke-layout.ts
@@ -0,0 +1,132 @@
+import fs from 'node:fs';
+import path from 'node:path';
+import { island } from './island.js';
+import { getConfig, saveConfig } from './config.js';
+import { defaultIslandLayouts, ISLAND_SHADOW_PAD } from '@classhelper/shared';
+export async function verifyLayoutSmoke(
+  check: (name: string, action: () => Promise<boolean | string> | boolean) => Promise<void>,
+) {
+  const original = getConfig().islandLayout;
+  await island.init(null);
+  island.setTestInputPassthrough(true);
+  const win = island.getWindow()!;
+  const pause = () => new Promise<void>((r) => setTimeout(r, 400));
+  try {
+    await pause();
+    await check('默认 fixed 布局且尺寸上报不参与', async () => {
+      saveConfig({ islandLayout: defaultIslandLayouts() });
+      const before = win.getBounds();
+      island.reportCustomSize({ width: 900, height: 900 });
+      await pause();
+      const after = win.getBounds();
+      return (
+        before.width === after.width &&
+        before.height === after.height &&
+        getConfig().islandLayout.layout === 'fixed'
+      );
+    });
+    await check('自定义编辑模式可进入并添加组件行', async () => {
+      island.editLayout();
+      await pause();
+      return win.webContents.executeJavaScript(
+        `(() => { const b=[...document.querySelectorAll('button')].find(b=>b.textContent.includes('在下方新建'));b?.click();return Boolean(document.querySelector('.layout-editor')); })()`,
+      );
+    });
+    await check('触摸拖动可跨行并持久化', async () => {
+      await pause();
+      await win.webContents.executeJavaScript(`(() => {
+        const handle=document.querySelector('.node-handle[data-kind=clock]');
+        const row=document.querySelectorAll('[data-row]')[1]; if(!handle||!row)throw Error('缺少拖动目标');
+        const r=row.getBoundingClientRect(); const x=r.left+Math.min(20,r.width/2),y=r.top+r.height/2;
+        handle.dispatchEvent(new PointerEvent('pointerdown',{bubbles:true,pointerId:19,pointerType:'touch',clientX:10,clientY:10}));
+        handle.dispatchEvent(new PointerEvent('pointermove',{bubbles:true,pointerId:19,pointerType:'touch',clientX:x,clientY:y}));
+        handle.dispatchEvent(new PointerEvent('pointerup',{bubbles:true,pointerId:19,pointerType:'touch',clientX:x,clientY:y}));
+      })()`);
+      await pause();
+      return getConfig().islandLayout.schemes[0]?.rows[1]?.nodes.some((n) => n.kind === 'clock') === true;
+    });
+    await check('组件可以包裹进容器且设置独立保存', async () => {
+      await win.webContents.executeJavaScript(
+        `(() => { const select=document.querySelector('.settings select');if(!select)throw Error('未选中组件');select.value='group';select.dispatchEvent(new Event('change',{bubbles:true})); })()`,
+      );
+      await pause();
+      return (
+        getConfig().islandLayout.schemes[0]?.rows.some((r) =>
+          r.nodes.some((n) => n.kind === 'group' && n.children.some((c) => c.kind === 'clock')),
+        ) === true
+      );
+    });
+    if (process.env.ISLAND_SHOTS_DIR) {
+      fs.mkdirSync(process.env.ISLAND_SHOTS_DIR, { recursive: true });
+      fs.writeFileSync(
+        path.join(process.env.ISLAND_SHOTS_DIR, 'custom-editor.png'),
+        (await win.webContents.capturePage()).toPNG(),
+      );
+    }
+    await check('退出编辑后配置可从 getConfig 读回', async () => {
+      island.editLayout(false);
+      await pause();
+      return !island.getEditingLayout() && getConfig().islandLayout.schemes[0]!.rows.length === 2;
+    });
+    await check('自定义窗口等于卡片加阴影留白且夹紧工作区', async () => {
+      await pause();
+      const rect = await win.webContents.executeJavaScript(
+        `(() => {const r=document.querySelector('.custom-card').getBoundingClientRect();return {width:r.width,height:r.height};})()`,
+      );
+      const box = win.getBounds();
+      return (
+        Math.abs(box.width - rect.width - 2 * ISLAND_SHADOW_PAD) <= 2 &&
+        Math.abs(box.height - rect.height - 2 * ISLAND_SHADOW_PAD) <= 2
+      );
+    });
+    await check('自定义提醒复用原渲染器且进入主要行', async () => {
+      island.setClassState({ inClass: false, currentPeriodEnd: null, week: 1 });
+      island.pushNotification({
+        id: 'custom-smoke-alert',
+        title: '组件化提醒验收',
+        content: '通知、作业与叫人共用原卡片行为',
+        priority: 'URGENT',
+        createdAt: new Date().toISOString(),
+        teacherName: '临时教师',
+        courseName: null,
+      });
+      await pause();
+      await pause();
+      return win.webContents.executeJavaScript(
+        `(() => {const host=document.querySelector('#custom-alert-host'),node=host?.querySelector('.island-root.embedded');return Boolean(node&&node.textContent.includes('组件化提醒验收')&&host.closest('[data-row]')===document.querySelector('[data-row]'));})()`,
+      );
+    });
+    await check('主要行禁用提醒后按允许提醒的行回落', async () => {
+      const changed = getConfig().islandLayout;
+      const rows = changed.schemes[0]!.rows;
+      rows[0]!.allowNotifications = false;
+      saveConfig({ islandLayout: changed });
+      island.syncCustomLayout();
+      await pause();
+      await pause();
+      return win.webContents.executeJavaScript(
+        `(() => {const host=document.querySelector('#custom-alert-host');return Boolean(host?.querySelector('.island-root.embedded')&&host.closest('[data-row]')===document.querySelectorAll('[data-row]')[1]);})()`,
+      );
+    });
+    if (process.env.ISLAND_SHOTS_DIR)
+      fs.writeFileSync(
+        path.join(process.env.ISLAND_SHOTS_DIR, 'custom-alert.png'),
+        (await win.webContents.capturePage()).toPNG(),
+      );
+    island.handleAction({ action: 'dismiss-all' });
+    await pause();
+    await pause();
+    await pause();
+    await check('提醒收回后缩回组件栏，保留时钟与可见状态', async () => {
+      const content = await win.webContents.executeJavaScript(
+        `Boolean(document.querySelector('.custom-card .clock'))`,
+      );
+      const visible = process.env.ELECTRON_SMOKE_MODE === 'visual' ? win.isVisible() : !win.isVisible();
+      return content && visible && island.getState().mode === 'hidden';
+    });
+  } finally {
+    saveConfig({ islandLayout: original });
+    island.syncCustomLayout();
+    win.hide();
+  }
+}
diff --git a/packages/desktop-client/src/main/smoke-quick.ts b/packages/desktop-client/src/main/smoke-quick.ts
index bd74d18..0495647 100644
--- a/packages/desktop-client/src/main/smoke-quick.ts
+++ b/packages/desktop-client/src/main/smoke-quick.ts
@@ -1,3 +1,5 @@
+import { verifyLayoutSmoke } from './smoke-layout.js';
+import { verifyAgentSmoke } from './smoke-agent.js';
 import fs from 'node:fs';
 import path from 'node:path';
 import { app, BrowserWindow } from 'electron';
@@ -79,6 +81,8 @@ export async function runQuickSmoke(win: BrowserWindow): Promise<void> {
       return result.detail;
     });
   }
+  await verifyAgentSmoke(check);
+  await verifyLayoutSmoke(check);
   await check('检查结束时没有可见或聚焦的验证窗口', () =>
     BrowserWindow.getAllWindows().every((item) => !item.isVisible() && !item.isFocused()),
   );
diff --git a/packages/desktop-client/src/main/smoke.ts b/packages/desktop-client/src/main/smoke.ts
index c20366f..2f31263 100644
--- a/packages/desktop-client/src/main/smoke.ts
+++ b/packages/desktop-client/src/main/smoke.ts
@@ -1,3 +1,4 @@
+import { verifyLayoutSmoke } from './smoke-layout.js';
 import fs from 'node:fs';
 import { runQuickSmoke } from './smoke-quick.js';
 import path from 'node:path';
@@ -4603,6 +4604,14 @@ export async function runSmokeTest(win: BrowserWindow): Promise<void> {
     }
   };
 
+  await verifyLayoutSmoke(async (name, action) => {
+    try {
+      const value = await action();
+      record(name, value !== false, typeof value === 'string' ? value : '');
+    } catch (error) {
+      record(name, false, String(error));
+    }
+  });
   writeResult();
 
   // 托盘与退出清理放在最后：会隐藏主窗口并销毁托盘/灵动岛
diff --git a/packages/desktop-client/src/main/tray.ts b/packages/desktop-client/src/main/tray.ts
index ad1f52a..84e56d8 100644
--- a/packages/desktop-client/src/main/tray.ts
+++ b/packages/desktop-client/src/main/tray.ts
@@ -1,3 +1,4 @@
+import { island } from './island.js';
 import fs from 'node:fs';
 import path from 'node:path';
 import { Menu, Tray, app, nativeImage } from 'electron';
@@ -38,6 +39,7 @@ export function createTray(handlers: TrayHandlers): Tray | null {
   tray.setContextMenu(
     Menu.buildFromTemplate([
       { label: '显示主窗口', click: () => handlers.onShow() },
+      { label: '编辑灵动岛布局', click: () => island.editLayout() },
       { label: '隐藏到托盘', click: () => handlers.onHide() },
       { type: 'separator' },
       { label: '退出 ClassHelper', click: () => handlers.onQuit() },
diff --git a/packages/desktop-client/src/preload/index.ts b/packages/desktop-client/src/preload/index.ts
index a2bcf1b..54d9f5d 100644
--- a/packages/desktop-client/src/preload/index.ts
+++ b/packages/desktop-client/src/preload/index.ts
@@ -1,3 +1,4 @@
+import type { ReleaseProgressDto as ContractReleaseProgressDto } from '@classhelper/shared';
 import { contextBridge, ipcRenderer } from 'electron';
 import { IPC_CHANNELS, UPDATE_AVAILABLE_CHANNEL } from '../main/channels.js';
 import type { ClientAgentStatus } from '../main/client-agent.js';
@@ -19,6 +20,7 @@ import type { IslandNotification, UpdateInfo } from '@classhelper/shared';
  * 之前就抛 `An object could not be cloned.`。调用方必须传纯数据，见 desktop.d.ts。
  */
 const bridge: DesktopBridge = {
+  islandEditLayout: () => ipcRenderer.invoke('island:edit-layout'),
   smokeTest: process.env.ELECTRON_SMOKE_TEST === '1',
   // 冒烟凭据：只在冒烟模式下透传，供渲染进程的冒烟钩子构造测试数据用。
   // **不走代码字面量**——本文件与渲染产物都会进 app.asar，写死账号等于随安装包把教师口令发出去。
@@ -31,6 +33,12 @@ const bridge: DesktopBridge = {
           classPassword: process.env.ELECTRON_SMOKE_CLASS_PASSWORD ?? '',
         }
       : undefined,
+  getUpdateProgress: () => ipcRenderer.invoke('client:get-update-progress'),
+  onUpdateProgress: (handler: (progress: ContractReleaseProgressDto) => void) => {
+    const listener = (_event: unknown, value: ContractReleaseProgressDto) => handler(value);
+    ipcRenderer.on('client:update-progress', listener);
+    return () => ipcRenderer.removeListener('client:update-progress', listener);
+  },
   getConfig: (): Promise<DesktopStoredConfig> => ipcRenderer.invoke(IPC_CHANNELS.getConfig),
   saveConfig: (patch: Partial<DesktopStoredConfig>): Promise<DesktopStoredConfig> =>
     ipcRenderer.invoke(IPC_CHANNELS.saveConfig, patch),
diff --git a/packages/desktop-client/src/preload/island.ts b/packages/desktop-client/src/preload/island.ts
index 01af4a9..d919e5b 100644
--- a/packages/desktop-client/src/preload/island.ts
+++ b/packages/desktop-client/src/preload/island.ts
@@ -1,3 +1,7 @@
+import type {
+  IslandLayoutSettings as ContractIslandLayoutSettings,
+  ScheduleDto as ContractScheduleDto,
+} from '@classhelper/shared';
 import { contextBridge, ipcRenderer } from 'electron';
 import type { IslandAppearance, IslandState } from '@classhelper/shared';
 
@@ -6,6 +10,16 @@ import type { IslandAppearance, IslandState } from '@classhelper/shared';
  * 只暴露「订阅状态/外观」与「发送用户操作」两件事，渲染进程不接触任何 Node 能力。
  */
 export interface IslandBridge {
+  getLayout(): Promise<ContractIslandLayoutSettings>;
+  saveLayout(value: ContractIslandLayoutSettings): Promise<ContractIslandLayoutSettings>;
+  onLayout(handler: (value: ContractIslandLayoutSettings) => void): void;
+  getEditing(): Promise<boolean>;
+  setEditing(value: boolean): Promise<void>;
+  onEditing(handler: (value: boolean) => void): void;
+  reportSize(value: { width: number; height: number }): void;
+  onViewport(handler: (value: { width: number; height: number }) => void): void;
+  onSchedules(handler: (value: ContractScheduleDto[]) => void): void;
+
   onState(handler: (state: IslandState) => void): void;
   sendAction(
     action:
@@ -38,6 +52,24 @@ export interface IslandBridge {
 }
 
 const bridge: IslandBridge = {
+  getLayout: () => ipcRenderer.invoke('island:get-layout'),
+  saveLayout: (value) => ipcRenderer.invoke('island:save-layout', value),
+  onLayout: (handler) => {
+    ipcRenderer.on('island:layout', (_event, value) => handler(value));
+  },
+  getEditing: () => ipcRenderer.invoke('island:get-editing'),
+  setEditing: (value) => ipcRenderer.invoke('island:set-editing', value),
+  onEditing: (handler) => {
+    ipcRenderer.on('island:editing', (_event, value) => handler(value));
+  },
+  reportSize: (value) => ipcRenderer.send('island:content-size', value),
+  onViewport: (handler) => {
+    ipcRenderer.on('island:viewport', (_event, value) => handler(value));
+  },
+  onSchedules: (handler) => {
+    ipcRenderer.on('island:schedules', (_event, value) => handler(value));
+  },
+
   onState: (handler) => {
     ipcRenderer.on('island:state', (_event, state: IslandState) => handler(state));
   },
diff --git a/packages/desktop-client/src/renderer/components/UpdateProgress.vue b/packages/desktop-client/src/renderer/components/UpdateProgress.vue
new file mode 100644
index 0000000..3b1291f
--- /dev/null
+++ b/packages/desktop-client/src/renderer/components/UpdateProgress.vue
@@ -0,0 +1,27 @@
+<script setup lang="ts">
+import { onMounted, onUnmounted, ref } from 'vue';
+import type { ReleaseProgressDto } from '@classhelper/shared';
+const progress = ref<ReleaseProgressDto>();
+let off: (() => void) | undefined;
+const labels = {
+  idle: '尚未下载',
+  downloading: '下载中',
+  verifying: '校验中',
+  ready: '完成',
+  waiting: '等待安装策略',
+  installing: '安装中',
+  failed: '失败',
+};
+onMounted(async () => {
+  off = window.desktop?.onUpdateProgress((p) => (progress.value = p));
+  progress.value = await window.desktop?.getUpdateProgress();
+});
+onUnmounted(() => off?.());
+</script>
+<template>
+  <section v-if="progress && progress.stage !== 'idle'" role="status">
+    <h3>客户端更新 · {{ labels[progress.stage] }}</h3>
+    <el-progress :percentage="progress.percent ?? 0" />
+    <p>{{ progress.version }} {{ progress.error }}</p>
+  </section>
+</template>
diff --git a/packages/desktop-client/src/renderer/island/bridge.ts b/packages/desktop-client/src/renderer/island/bridge.ts
index 23e42d8..c2b3f69 100644
--- a/packages/desktop-client/src/renderer/island/bridge.ts
+++ b/packages/desktop-client/src/renderer/island/bridge.ts
@@ -1,3 +1,4 @@
+import type { ActiveClassPlanWeekDto as ContractActiveClassPlanWeekDto } from '@classhelper/shared';
 import { watch, type WatchStopHandle } from 'vue';
 import {
   SOCKET_EVENTS,
@@ -7,7 +8,8 @@ import {
   type NotificationDto,
   type ScheduleDto,
 } from '@classhelper/shared';
-import { notificationApi, scheduleApi } from '../api/index.js';
+import { api } from '../api/http.js';
+import { notificationApi } from '../api/index.js';
 import { fetchWithCache } from '../cache/index.js';
 import { getCacheScope } from '../cache/scope.js';
 import { clearOfflineSince, readOfflineSince, useAppStore } from '../stores/app.js';
@@ -59,7 +61,10 @@ export async function refreshIslandSchedules(): Promise<void> {
   const result = await fetchWithCache<ScheduleDto[]>(
     'schedules',
     `week:${week}`,
-    () => scheduleApi.list({ classId, week }),
+    async () =>
+      (
+        await api.get<ContractActiveClassPlanWeekDto>('/schedules/active-week', { classId, week })
+      ).days.flatMap((day) => day.schedules),
     [],
   );
   if (scope !== getCacheScope() || request !== scheduleRequest) return;
@@ -73,15 +78,19 @@ function recomputeClassState(force = false): void {
   const appStore = useAppStore();
   const status = resolveClassStatus(schedules, new Date(), scheduleWeek);
   const nextInClass = status.inClass;
+  const samePeriod =
+    currentPeriod?.scheduleId === status.current?.scheduleId &&
+    currentPeriod?.endTime === status.current?.endTime;
   currentPeriod = status.current;
 
-  if (!force && nextInClass === inClass) return;
+  if (!force && nextInClass === inClass && samePeriod) return;
   inClass = nextInClass;
 
   window.desktop?.islandSetClassState({
     inClass,
     currentPeriodEnd: currentPeriod?.endTime ?? null,
     week: appStore.currentWeek,
+    schedules: schedules.filter((s) => s.dayOfWeek === (new Date().getDay() || 7)),
   });
 }
 
diff --git a/packages/desktop-client/src/renderer/stores/app.ts b/packages/desktop-client/src/renderer/stores/app.ts
index 9e1b7dc..680238f 100644
--- a/packages/desktop-client/src/renderer/stores/app.ts
+++ b/packages/desktop-client/src/renderer/stores/app.ts
@@ -1,3 +1,4 @@
+import { getMaxTermWeeks } from '@classhelper/shared';
 import { computed, ref } from 'vue';
 import { defineStore } from 'pinia';
 import { STORAGE_KEYS, formatDate } from '@classhelper/shared';
@@ -65,12 +66,12 @@ export const useAppStore = defineStore('app', () => {
   const lastSyncAt = ref<number | null>(null);
   const cacheStoreStats = ref<CacheStoreStat[]>([]);
   const currentWeek = ref(1);
-  const maxWeek = ref(20);
+  const maxWeek = ref(getMaxTermWeeks());
   const initialized = ref(false);
   let termRequest = 0;
   onCacheScopeChanged(() => {
     currentWeek.value = 1;
-    maxWeek.value = 20;
+    maxWeek.value = getMaxTermWeeks();
     termRequest += 1;
     clearOfflineSince();
   });
@@ -81,7 +82,7 @@ export const useAppStore = defineStore('app', () => {
     const scope = getCacheScope();
     const result = await fetchWithCache('classes', 'term', () => dashboardApi.term(classId), {
       currentWeek: 1,
-      maxWeek: 20,
+      maxWeek: getMaxTermWeeks(),
     });
     if (request !== termRequest || scope !== getCacheScope() || (result.error && !result.updatedAt)) return;
     currentWeek.value = result.data.currentWeek;
diff --git a/packages/desktop-client/src/renderer/stores/realtime.ts b/packages/desktop-client/src/renderer/stores/realtime.ts
index 2bee721..93f02aa 100644
--- a/packages/desktop-client/src/renderer/stores/realtime.ts
+++ b/packages/desktop-client/src/renderer/stores/realtime.ts
@@ -5,7 +5,7 @@ import { io, type Socket } from 'socket.io-client';
 import {
   PRIORITY_LABELS,
   SOCKET_EVENTS,
-  type GradeDto,
+  type GradeUpdateEvent,
   type HomeworkDto,
   type NotificationDto,
   type ServerToClientEvents,
@@ -48,6 +48,9 @@ export const useRealtimeStore = defineStore('realtime', () => {
   }
 
   function bind(instance: Socket): void {
+    instance.on(SOCKET_EVENTS.clientReleaseProgress, (payload) => {
+      dispatch(SOCKET_EVENTS.clientReleaseProgress, payload);
+    });
     instance.on('connect', () => {
       connected.value = true;
       connecting.value = false;
@@ -106,9 +109,13 @@ export const useRealtimeStore = defineStore('realtime', () => {
       dispatch(SOCKET_EVENTS.homeworkUpdated, payload);
     });
 
-    instance.on(SOCKET_EVENTS.gradeUpdated, (payload: GradeDto) => {
+    instance.on(SOCKET_EVENTS.gradeUpdated, (payload: GradeUpdateEvent) => {
       mark(SOCKET_EVENTS.gradeUpdated);
-      ElMessage.success(`成绩更新：${payload.examName} ${payload.score}/${payload.totalScore}`);
+      ElMessage.success(
+        'score' in payload
+          ? `成绩更新：${payload.examName} ${payload.score}/${payload.totalScore}`
+          : '班级成绩分析已更新',
+      );
       dispatch(SOCKET_EVENTS.gradeUpdated, payload);
     });
 
diff --git a/packages/desktop-client/src/renderer/views/GradeView.vue b/packages/desktop-client/src/renderer/views/GradeView.vue
index 6f05b83..2c10df5 100644
--- a/packages/desktop-client/src/renderer/views/GradeView.vue
+++ b/packages/desktop-client/src/renderer/views/GradeView.vue
@@ -1,4 +1,6 @@
 <script setup lang="ts">
+import type { CollectiveGradeAnalysisDto as ContractCollectiveGradeAnalysisDto } from '@classhelper/shared';
+
 import { computed, onMounted, onUnmounted, ref } from 'vue';
 import {
   SOCKET_EVENTS,
@@ -11,6 +13,7 @@ import {
   type GradeDto,
   type StudentGradeDetailDto,
 } from '@classhelper/shared';
+import { api } from '../api/http.js';
 import { gradeApi } from '../api/index.js';
 import { fetchWithCache } from '../cache/index.js';
 import ScoreBarChart from '../components/ScoreBarChart.vue';
@@ -28,6 +31,7 @@ const realtime = useRealtimeStore();
 
 const loading = ref(false);
 const grades = ref<GradeDto[]>([]);
+const collective = ref<ContractCollectiveGradeAnalysisDto | null>(null);
 const fromCache = ref(false);
 const updatedAt = ref<number | null>(null);
 
@@ -106,6 +110,31 @@ const examAverages = computed(() => {
 async function loadGrades(): Promise<void> {
   loading.value = true;
   try {
+    if (auth.isClassSession) {
+      const result = await fetchWithCache<
+        ContractCollectiveGradeAnalysisDto | { mode: 'personal'; items: GradeDto[] }
+      >('grades', 'overview', () => api.get('/grades/overview'), {
+        mode: 'collective',
+        classId: auth.classId || '',
+        suppressed: true,
+        averagePercent: null,
+        passRate: null,
+        excellentRate: null,
+        subjects: [],
+        distribution: [],
+        trend: [],
+      });
+      collective.value = result.data.mode === 'collective' ? result.data : null;
+      grades.value = result.data.mode === 'personal' ? result.data.items : [];
+      if (collective.value) {
+        queried.value = null;
+        queryNo.value = '';
+        ranking.value = null;
+      }
+      fromCache.value = result.fromCache;
+      updatedAt.value = result.updatedAt;
+      return;
+    }
     const result = await fetchWithCache<GradeDto[]>('grades', 'my', () => gradeApi.my(), []);
     grades.value = result.data;
     fromCache.value = result.fromCache;
@@ -134,6 +163,12 @@ const rankingLoading = ref(false);
 const rankingError = ref('');
 
 async function loadExams(): Promise<void> {
+  if (collective.value) {
+    examList.value = [];
+    selectedExam.value = '';
+    ranking.value = null;
+    return;
+  }
   const classId = auth.user?.classId;
   if (!classId) return;
   try {
@@ -180,233 +215,259 @@ onMounted(async () => {
   await loadGrades();
   await loadExams();
   realtime.on(SOCKET_EVENTS.gradeUpdated, onGradeEvent);
+  realtime.on(SOCKET_EVENTS.classUpdated, onGradeEvent);
   appStore.onServerRecovered(onRecovered);
 });
 
 onUnmounted(() => {
   realtime.off(SOCKET_EVENTS.gradeUpdated, onGradeEvent);
+  realtime.off(SOCKET_EVENTS.classUpdated, onGradeEvent);
   appStore.offServerRecovered(onRecovered);
 });
 </script>
 
 <template>
   <div class="page">
-    <div class="page-header">
-      <div>
-        <h2 class="page-title">{{ auth.isClassSession ? '本班成绩' : '我的成绩' }}</h2>
-        <p class="page-subtitle">
-          共 {{ grades.length }} 条记录 · 平均得分率 {{ averagePercent }}%
-          <span v-if="auth.isClassSession">· 班级账号：显示全班成绩总览</span>
-          <el-tag v-if="fromCache" size="small" type="warning" effect="plain">离线缓存</el-tag>
-        </p>
+    <el-card v-if="collective">
+      <h2>全班集体成绩分析</h2>
+      <p>个人成绩查询已关闭；只展示服务端聚合结果。人数不足或稀疏分段不展示。</p>
+      <p>
+        班级平均得分率：{{ collective.averagePercent ?? '样本不足' }} · 及格率：{{
+          collective.passRate ?? '已隐藏'
+        }}
+        · 优秀率：{{ collective.excellentRate ?? '已隐藏' }}
+      </p>
+      <el-table :data="collective.subjects">
+        <el-table-column prop="name" label="科目" />
+        <el-table-column prop="averagePercent" label="平均得分率" />
+      </el-table>
+      <el-table :data="collective.distribution">
+        <el-table-column prop="label" label="分数段" />
+        <el-table-column prop="count" label="人数（稀疏时隐藏）" />
+      </el-table>
+      <el-table :data="collective.trend">
+        <el-table-column prop="examName" label="考试趋势" />
+        <el-table-column prop="averagePercent" label="平均得分率" />
+      </el-table>
+    </el-card>
+    <template v-if="!collective">
+      <div v-if="!collective" class="page-header">
+        <div>
+          <h2 class="page-title">{{ auth.isClassSession ? '本班成绩' : '我的成绩' }}</h2>
+          <p class="page-subtitle">
+            共 {{ grades.length }} 条记录 · 平均得分率 {{ averagePercent }}%
+            <span v-if="auth.isClassSession">· 班级账号：显示全班成绩总览</span>
+            <el-tag v-if="fromCache" size="small" type="warning" effect="plain">离线缓存</el-tag>
+          </p>
+        </div>
+        <div class="toolbar">
+          <el-input
+            v-model="queryNo"
+            placeholder="输入学号查个人明细"
+            clearable
+            style="width: 200px"
+            @keyup.enter="queryByStudentNo"
+          />
+          <el-button :icon="'Search'" :loading="queryLoading" @click="queryByStudentNo">按学号查询</el-button>
+          <el-button :icon="'Refresh'" @click="loadGrades">刷新</el-button>
+        </div>
       </div>
-      <div class="toolbar">
-        <el-input
-          v-model="queryNo"
-          placeholder="输入学号查个人明细"
-          clearable
-          style="width: 200px"
-          @keyup.enter="queryByStudentNo"
-        />
-        <el-button :icon="'Search'" :loading="queryLoading" @click="queryByStudentNo">按学号查询</el-button>
-        <el-button :icon="'Refresh'" @click="loadGrades">刷新</el-button>
-      </div>
-    </div>
 
-    <!-- 按学号查询结果：ClassHelper 班级端代学生查本人明细 -->
-    <el-card v-if="queried || queryError" shadow="never" class="mt-12">
-      <template #header>
-        <div class="query-header">
-          <span v-if="queried">
-            学号 {{ queried.student.studentNo }} · {{ queried.student.name }}
-            <span class="text-muted">（{{ queried.className ?? '未分班' }}）</span>
-          </span>
-          <span v-else>查询失败</span>
-          <el-button link @click="((queried = null), (queryError = ''))">收起</el-button>
-        </div>
-      </template>
-      <el-alert v-if="queryError" type="warning" :closable="false" show-icon :title="queryError" />
-      <template v-else-if="queried">
-        <div class="text-muted" style="margin-bottom: 8px">
-          共 {{ queried.items.length }} 条记录 · 平均得分率 {{ queried.averagePercent }}%
-        </div>
-        <el-table :data="queried.items" size="small" empty-text="该生还没有成绩记录" max-height="320">
-          <el-table-column prop="examName" label="考试" width="150" />
-          <el-table-column label="科目" width="110">
+      <!-- 按学号查询结果：ClassHelper 班级端代学生查本人明细 -->
+      <el-card v-if="queried || queryError" shadow="never" class="mt-12">
+        <template #header>
+          <div class="query-header">
+            <span v-if="queried">
+              学号 {{ queried.student.studentNo }} · {{ queried.student.name }}
+              <span class="text-muted">（{{ queried.className ?? '未分班' }}）</span>
+            </span>
+            <span v-else>查询失败</span>
+            <el-button link @click="((queried = null), (queryError = ''))">收起</el-button>
+          </div>
+        </template>
+        <el-alert v-if="queryError" type="warning" :closable="false" show-icon :title="queryError" />
+        <template v-else-if="queried">
+          <div class="text-muted" style="margin-bottom: 8px">
+            共 {{ queried.items.length }} 条记录 · 平均得分率 {{ queried.averagePercent }}%
+          </div>
+          <el-table :data="queried.items" size="small" empty-text="该生还没有成绩记录" max-height="320">
+            <el-table-column prop="examName" label="考试" width="150" />
+            <el-table-column label="科目" width="110">
+              <template #default="{ row }">{{ row.course?.name ?? '-' }}</template>
+            </el-table-column>
+            <el-table-column label="分数" width="120">
+              <template #default="{ row }">{{ row.score }} / {{ row.totalScore }}</template>
+            </el-table-column>
+            <el-table-column label="等级" width="100">
+              <template #default="{ row }">
+                <el-tag size="small" effect="plain">{{ row.level || '-' }}</el-tag>
+              </template>
+            </el-table-column>
+            <el-table-column label="发布时间">
+              <template #default="{ row }">{{ formatDate(row.publishedAt, true) }}</template>
+            </el-table-column>
+          </el-table>
+        </template>
+      </el-card>
+
+      <!-- 考试排名：总分榜（老师把这次考试设成"所有科目相加"时才有）+ 单科榜。
+         排名与"算不算总分"都由服务端说了算，这里只显示。 -->
+      <el-card v-if="auth.isClassSession" v-loading="rankingLoading" shadow="never" class="mt-16">
+        <template #header>
+          <div class="ranking-header">
+            <span>考试排名</span>
+            <el-select
+              v-model="selectedExam"
+              placeholder="选择考试"
+              size="small"
+              style="width: 200px"
+              :disabled="examList.length === 0"
+              @change="loadRanking"
+            >
+              <el-option
+                v-for="item in examList"
+                :key="item.name"
+                :label="`${item.name}（${item.gradeCount} 条）`"
+                :value="item.name"
+              />
+            </el-select>
+            <el-button size="small" :icon="'Refresh'" @click="loadRanking">刷新</el-button>
+          </div>
+        </template>
+
+        <el-alert v-if="rankingError" type="warning" :closable="false" show-icon :title="rankingError" />
+        <el-empty
+          v-else-if="examList.length === 0"
+          description="还没有成绩记录，先在 Web 端录入或导入"
+          :image-size="60"
+        />
+        <template v-else-if="ranking">
+          <el-alert v-if="!ranking.countInTotal" type="info" :closable="false" show-icon class="mb-12">
+            <template #title>这次考试没有开启总分排名</template>
+            <template #default>
+              语数外与音体美的分数量纲不同，合不合总分由老师决定 —— 需要总分榜请在 Web 端「成绩录入」
+              页把该次考试的「考试口径」打开。
+            </template>
+          </el-alert>
+
+          <el-table v-if="ranking.countInTotal" :data="ranking.total" size="small" max-height="320">
+            <el-table-column label="总分排名" width="96">
+              <template #default="{ row }">
+                <el-tag :type="row.rank <= 3 ? 'danger' : 'info'" effect="plain" size="small">
+                  {{ row.rank }}
+                </el-tag>
+              </template>
+            </el-table-column>
+            <el-table-column prop="studentNo" label="学号" width="110" />
+            <el-table-column prop="studentName" label="姓名" width="110" />
+            <el-table-column label="总分" width="90">
+              <template #default="{ row }">{{ row.score }}</template>
+            </el-table-column>
+            <el-table-column label="科目数" width="90">
+              <template #default="{ row }">{{ row.subjectCount }}</template>
+            </el-table-column>
+          </el-table>
+
+          <el-divider v-if="ranking.countInTotal" content-position="left">单科排名</el-divider>
+          <el-tabs v-if="ranking.subjects.length > 0" type="border-card">
+            <el-tab-pane
+              v-for="subject in ranking.subjects"
+              :key="subject.courseName"
+              :label="subject.courseName"
+            >
+              <el-table :data="subject.rows" size="small" max-height="300">
+                <el-table-column label="名次" width="80">
+                  <template #default="{ row }">{{ row.rank }}</template>
+                </el-table-column>
+                <el-table-column prop="studentNo" label="学号" width="110" />
+                <el-table-column prop="studentName" label="姓名" width="110" />
+                <el-table-column label="得分" width="120">
+                  <template #default="{ row }">{{ row.score }} / {{ row.totalScore }}</template>
+                </el-table-column>
+              </el-table>
+            </el-tab-pane>
+          </el-tabs>
+          <el-empty v-else description="这次考试还没有单科成绩" :image-size="60" />
+        </template>
+      </el-card>
+
+      <el-row :gutter="12">
+        <el-col :xs="24" :md="8">
+          <div class="stat-card">
+            <div class="stat-label">平均得分率</div>
+            <div class="stat-value">{{ averagePercent }}%</div>
+            <div class="stat-hint">共 {{ grades.length }} 次记录</div>
+          </div>
+          <div class="stat-card mt-12">
+            <div class="stat-label">最好成绩</div>
+            <div class="stat-value">
+              {{ bestGrade ? `${bestGrade.score}/${bestGrade.totalScore}` : '-' }}
+            </div>
+            <div class="stat-hint">{{ bestGrade?.examName ?? '暂无数据' }}</div>
+          </div>
+          <div class="stat-card mt-12">
+            <div class="stat-label">等级分布</div>
+            <div class="level-list">
+              <el-tag v-for="(count, level) in levelCounts" :key="level" effect="plain">
+                {{ level }} 等：{{ count }}
+              </el-tag>
+            </div>
+          </div>
+        </el-col>
+
+        <el-col :xs="24" :md="16">
+          <el-card v-loading="loading" shadow="never">
+            <template #header><span>各次考试平均得分率</span></template>
+            <ScoreBarChart :items="examAverages" />
+          </el-card>
+        </el-col>
+      </el-row>
+
+      <el-card shadow="never" class="mt-16">
+        <template #header><span>成绩明细</span></template>
+        <el-table :data="grades" empty-text="暂无成绩" max-height="420">
+          <el-table-column prop="examName" label="考试" min-width="150" />
+          <el-table-column label="课程" width="110">
             <template #default="{ row }">{{ row.course?.name ?? '-' }}</template>
           </el-table-column>
-          <el-table-column label="分数" width="120">
+          <el-table-column label="分数" width="130">
             <template #default="{ row }">{{ row.score }} / {{ row.totalScore }}</template>
           </el-table-column>
-          <el-table-column label="等级" width="100">
+          <el-table-column label="得分率" width="200">
             <template #default="{ row }">
-              <el-tag size="small" effect="plain">{{ row.level || '-' }}</el-tag>
+              <el-progress
+                :percentage="gradePercent(row.score, row.totalScore)"
+                :stroke-width="10"
+                :status="gradePercent(row.score, row.totalScore) >= 60 ? 'success' : 'exception'"
+              />
             </template>
           </el-table-column>
-          <el-table-column label="发布时间">
+          <el-table-column label="等级" width="80">
+            <template #default="{ row }">
+              {{ row.level || gradeLevel(gradePercent(row.score, row.totalScore)) }}
+            </template>
+          </el-table-column>
+          <el-table-column label="发布时间" width="170">
             <template #default="{ row }">{{ formatDate(row.publishedAt, true) }}</template>
           </el-table-column>
         </el-table>
-      </template>
-    </el-card>
+      </el-card>
 
-    <!-- 考试排名：总分榜（老师把这次考试设成"所有科目相加"时才有）+ 单科榜。
-         排名与"算不算总分"都由服务端说了算，这里只显示。 -->
-    <el-card v-if="auth.isClassSession" v-loading="rankingLoading" shadow="never" class="mt-16">
-      <template #header>
-        <div class="ranking-header">
-          <span>考试排名</span>
-          <el-select
-            v-model="selectedExam"
-            placeholder="选择考试"
-            size="small"
-            style="width: 200px"
-            :disabled="examList.length === 0"
-            @change="loadRanking"
+      <el-card v-if="latestGrades.length > 0" shadow="never" class="mt-16">
+        <template #header><span>最近更新</span></template>
+        <el-timeline>
+          <el-timeline-item
+            v-for="item in latestGrades"
+            :key="item.id"
+            :timestamp="formatDate(item.publishedAt, true)"
+            placement="top"
           >
-            <el-option
-              v-for="item in examList"
-              :key="item.name"
-              :label="`${item.name}（${item.gradeCount} 条）`"
-              :value="item.name"
-            />
-          </el-select>
-          <el-button size="small" :icon="'Refresh'" @click="loadRanking">刷新</el-button>
-        </div>
-      </template>
-
-      <el-alert v-if="rankingError" type="warning" :closable="false" show-icon :title="rankingError" />
-      <el-empty
-        v-else-if="examList.length === 0"
-        description="还没有成绩记录，先在 Web 端录入或导入"
-        :image-size="60"
-      />
-      <template v-else-if="ranking">
-        <el-alert v-if="!ranking.countInTotal" type="info" :closable="false" show-icon class="mb-12">
-          <template #title>这次考试没有开启总分排名</template>
-          <template #default>
-            语数外与音体美的分数量纲不同，合不合总分由老师决定 —— 需要总分榜请在 Web 端「成绩录入」
-            页把该次考试的「考试口径」打开。
-          </template>
-        </el-alert>
-
-        <el-table v-if="ranking.countInTotal" :data="ranking.total" size="small" max-height="320">
-          <el-table-column label="总分排名" width="96">
-            <template #default="{ row }">
-              <el-tag :type="row.rank <= 3 ? 'danger' : 'info'" effect="plain" size="small">
-                {{ row.rank }}
-              </el-tag>
-            </template>
-          </el-table-column>
-          <el-table-column prop="studentNo" label="学号" width="110" />
-          <el-table-column prop="studentName" label="姓名" width="110" />
-          <el-table-column label="总分" width="90">
-            <template #default="{ row }">{{ row.score }}</template>
-          </el-table-column>
-          <el-table-column label="科目数" width="90">
-            <template #default="{ row }">{{ row.subjectCount }}</template>
-          </el-table-column>
-        </el-table>
-
-        <el-divider v-if="ranking.countInTotal" content-position="left">单科排名</el-divider>
-        <el-tabs v-if="ranking.subjects.length > 0" type="border-card">
-          <el-tab-pane
-            v-for="subject in ranking.subjects"
-            :key="subject.courseName"
-            :label="subject.courseName"
-          >
-            <el-table :data="subject.rows" size="small" max-height="300">
-              <el-table-column label="名次" width="80">
-                <template #default="{ row }">{{ row.rank }}</template>
-              </el-table-column>
-              <el-table-column prop="studentNo" label="学号" width="110" />
-              <el-table-column prop="studentName" label="姓名" width="110" />
-              <el-table-column label="得分" width="120">
-                <template #default="{ row }">{{ row.score }} / {{ row.totalScore }}</template>
-              </el-table-column>
-            </el-table>
-          </el-tab-pane>
-        </el-tabs>
-        <el-empty v-else description="这次考试还没有单科成绩" :image-size="60" />
-      </template>
-    </el-card>
-
-    <el-row :gutter="12">
-      <el-col :xs="24" :md="8">
-        <div class="stat-card">
-          <div class="stat-label">平均得分率</div>
-          <div class="stat-value">{{ averagePercent }}%</div>
-          <div class="stat-hint">共 {{ grades.length }} 次记录</div>
-        </div>
-        <div class="stat-card mt-12">
-          <div class="stat-label">最好成绩</div>
-          <div class="stat-value">
-            {{ bestGrade ? `${bestGrade.score}/${bestGrade.totalScore}` : '-' }}
-          </div>
-          <div class="stat-hint">{{ bestGrade?.examName ?? '暂无数据' }}</div>
-        </div>
-        <div class="stat-card mt-12">
-          <div class="stat-label">等级分布</div>
-          <div class="level-list">
-            <el-tag v-for="(count, level) in levelCounts" :key="level" effect="plain">
-              {{ level }} 等：{{ count }}
-            </el-tag>
-          </div>
-        </div>
-      </el-col>
-
-      <el-col :xs="24" :md="16">
-        <el-card v-loading="loading" shadow="never">
-          <template #header><span>各次考试平均得分率</span></template>
-          <ScoreBarChart :items="examAverages" />
-        </el-card>
-      </el-col>
-    </el-row>
-
-    <el-card shadow="never" class="mt-16">
-      <template #header><span>成绩明细</span></template>
-      <el-table :data="grades" empty-text="暂无成绩" max-height="420">
-        <el-table-column prop="examName" label="考试" min-width="150" />
-        <el-table-column label="课程" width="110">
-          <template #default="{ row }">{{ row.course?.name ?? '-' }}</template>
-        </el-table-column>
-        <el-table-column label="分数" width="130">
-          <template #default="{ row }">{{ row.score }} / {{ row.totalScore }}</template>
-        </el-table-column>
-        <el-table-column label="得分率" width="200">
-          <template #default="{ row }">
-            <el-progress
-              :percentage="gradePercent(row.score, row.totalScore)"
-              :stroke-width="10"
-              :status="gradePercent(row.score, row.totalScore) >= 60 ? 'success' : 'exception'"
-            />
-          </template>
-        </el-table-column>
-        <el-table-column label="等级" width="80">
-          <template #default="{ row }">
-            {{ row.level || gradeLevel(gradePercent(row.score, row.totalScore)) }}
-          </template>
-        </el-table-column>
-        <el-table-column label="发布时间" width="170">
-          <template #default="{ row }">{{ formatDate(row.publishedAt, true) }}</template>
-        </el-table-column>
-      </el-table>
-    </el-card>
-
-    <el-card v-if="latestGrades.length > 0" shadow="never" class="mt-16">
-      <template #header><span>最近更新</span></template>
-      <el-timeline>
-        <el-timeline-item
-          v-for="item in latestGrades"
-          :key="item.id"
-          :timestamp="formatDate(item.publishedAt, true)"
-          placement="top"
-        >
-          {{ item.examName }} · {{ item.course?.name ?? '未关联课程' }}：
-          <strong>{{ item.score }}/{{ item.totalScore }}</strong>
-        </el-timeline-item>
-      </el-timeline>
-    </el-card>
+            {{ item.examName }} · {{ item.course?.name ?? '未关联课程' }}：
+            <strong>{{ item.score }}/{{ item.totalScore }}</strong>
+          </el-timeline-item>
+        </el-timeline>
+      </el-card>
+    </template>
   </div>
 </template>
 
diff --git a/packages/desktop-client/src/renderer/views/settings/AboutView.vue b/packages/desktop-client/src/renderer/views/settings/AboutView.vue
index f0821ee..1328092 100644
--- a/packages/desktop-client/src/renderer/views/settings/AboutView.vue
+++ b/packages/desktop-client/src/renderer/views/settings/AboutView.vue
@@ -1,4 +1,5 @@
 <script setup lang="ts">
+import UpdateProgress from '../../components/UpdateProgress.vue';
 import { onMounted, ref } from 'vue';
 import { ElMessage } from 'element-plus';
 import type { UpdateInfo } from '@classhelper/shared';
@@ -70,6 +71,7 @@ onMounted(async () => {
 
 <template>
   <div class="page">
+    <UpdateProgress />
     <div class="page-header">
       <div>
         <h2 class="page-title">关于</h2>
diff --git a/packages/desktop-client/src/renderer/views/settings/IslandSettingsView.vue b/packages/desktop-client/src/renderer/views/settings/IslandSettingsView.vue
index 7c2b3c0..883372b 100644
--- a/packages/desktop-client/src/renderer/views/settings/IslandSettingsView.vue
+++ b/packages/desktop-client/src/renderer/views/settings/IslandSettingsView.vue
@@ -23,6 +23,18 @@ import {
  */
 const island = ref<IslandAppearance>({ ...DEFAULT_ISLAND_APPEARANCE });
 const savingIsland = ref(false);
+function editLayout() {
+  void window.desktop?.islandEditLayout();
+}
+const layoutMode = ref<'fixed' | 'custom'>('fixed');
+async function changeLayout() {
+  const config = await window.desktop?.getConfig();
+  if (config)
+    await window.desktop?.saveConfig({ islandLayout: { ...config.islandLayout, layout: layoutMode.value } });
+}
+onMounted(async () => {
+  layoutMode.value = (await window.desktop?.getConfig())?.islandLayout.layout ?? 'fixed';
+});
 
 /**
  * 左右边距是否有效：只在停靠左 / 右时生效。
@@ -94,6 +106,14 @@ onMounted(async () => {
 
 <template>
   <div class="page">
+    <el-card>
+      <h3>组件布局</h3>
+      <el-select v-model="layoutMode" @change="changeLayout">
+        <el-option label="固定灵动岛（默认）" value="fixed" />
+        <el-option label="自定义组件栏" value="custom" />
+      </el-select>
+      <el-button @click="editLayout">编辑灵动岛布局</el-button>
+    </el-card>
     <div class="page-header">
       <div>
         <h2 class="page-title">灵动岛</h2>
diff --git a/packages/desktop-client/src/types/desktop.d.ts b/packages/desktop-client/src/types/desktop.d.ts
index da07cb0..72898d7 100644
--- a/packages/desktop-client/src/types/desktop.d.ts
+++ b/packages/desktop-client/src/types/desktop.d.ts
@@ -1,9 +1,15 @@
+import type {
+  IslandLayoutSettings as ContractIslandLayoutSettings,
+  ReleaseProgressDto as ContractReleaseProgressDto,
+  ScheduleDto as ContractScheduleDto,
+} from '@classhelper/shared';
 /**
  * 主进程与渲染进程之间的桥接契约（preload 通过 contextBridge 暴露）。
  * 渲染进程只依赖这些最小 API，不接触 Node.js。
  */
 import type { IslandAppearance, IslandNotification, IslandState, UpdateInfo } from '@classhelper/shared';
 import type { ClientAgentStatus } from '../main/client-agent.js';
+import type { IslandBridge } from '../preload/island.js';
 
 /** 服务端联动状态：渲染进程要显示它，因此在这里转出（`desktop.d.ts` 是两端契约的单一入口） */
 export type { ClientAgentStatus };
@@ -24,6 +30,7 @@ export interface HomeworkBoardSettings {
 }
 
 export interface DesktopStoredConfig {
+  islandLayout: ContractIslandLayoutSettings;
   /** 后端服务地址，例如 http://127.0.0.1:4000 */
   serverUrl: string;
   /** 上次登录的用户名（便于自动填充） */
@@ -103,12 +110,16 @@ export interface IslandPushContext {
 }
 
 export interface IslandClassStatePayload {
+  schedules?: ContractScheduleDto[];
   inClass: boolean;
   currentPeriodEnd?: string | null;
   week?: number;
 }
 
 export interface DesktopBridge {
+  islandEditLayout(): Promise<void>;
+  getUpdateProgress(): Promise<ContractReleaseProgressDto>;
+  onUpdateProgress(handler: (progress: ContractReleaseProgressDto) => void): () => void;
   /** 是否处于冒烟验证模式（由 ELECTRON_SMOKE_TEST=1 触发），同步可读 */
   smokeTest: boolean;
   /**
@@ -199,7 +210,7 @@ export interface DesktopBridge {
 }
 
 /** 灵动岛窗口自身的桥接（只暴露订阅状态与发送操作） */
-export interface IslandRendererBridge {
+export interface IslandRendererBridge extends IslandBridge {
   onState(handler: (state: IslandState) => void): void;
   /** 订阅外观设置（CSS 变量实时生效） */
   onAppearance(handler: (appearance: IslandAppearance) => void): void;