feat(island): 彻底照搬 WinIsland 架构重写灵动岛（固定包围盒窗口 + 窗口内弹簧形变）

背景：上一版仍沿用"每帧移动/缩放透明窗口"的做法，实机上会出现形变抖动与残影（用户反馈"越改越烂、开合震动还在"）。本次按 WinIsland 的真实做法重做架构。主进程（packages/desktop-client/src/main/island.ts）: - 窗口一次创建为**固定包围盒**（最大形态 + ISLAND_SHADOW_PAD 阴影留白），开合过程中不再调用 setBounds；只在"尺寸/位置设置变化"时重排一次窗口 - 新增 setInteractive()：默认 setIgnoreMouseEvents(true,{forward:true}) 整块穿透，由渲染层命中测试回调切换（照搬 WinIsland set_cursor_hittest），保证不吞桌面点击 - 移除逐帧几何代码（animateBounds/boundsFor/computeBounds/resolveAnchor 用于窗口定位的简化版保留） - 空闲细缝不再受 Windows 36px 最小窗口高度限制（窗口固定，岛可真正缩到 6px 宽）渲染层（IslandApp.vue + 新增 spring.ts）: - 岛是**单一元素**，宽/高/圆角由 WinIsland 弹簧逐帧逼近： force=(target-value)*0.10*dt → velocity=(velocity+force)*0.68^dt → value+=velocity*dt （dt 以帧计；换向保留 35% 动量、单帧位移 ≤ 剩余距离 20%），并加零过冲钳制 - 胶囊层与展开层常驻并交叉淡入（展开 progress²、胶囊 1-1.5×progress），形变全程无缩放回弹 - 形状层改为显式像素宽高 + preserveAspectRatio="none"（避免 viewBox 缩放导致形状错位/残留角） - 修两个实机可见缺陷：① 展开层漏了 flex-direction: column（展开卡内容横排、元素散落）； ② 隐藏且无细缝时不再把岛缩成细缝（否则下次弹出会"从细缝长大"） - 尺寸增量 ISLAND_SIZE_DELTA / 阴影留白移入 @classhelper/shared，主/渲染两端共用一份验证（verify:desktop 53 → 54 项，全绿）: - 新增「开合过程中窗口全程恒定」（逐帧窗口签名恒为 476x282@482,-2，岛 386x230→…→268x44 单调收缩， SVG 形状 bbox 与卡片框一致 ±2px） - 新增「岛外鼠标穿透」（岛内 interactive=true / 岛外 false） - 开合不震动改为按"岛"判定：窗口冻结 + 岛锚点 0.00px + 无过冲；截图按岛矩形裁剪并统计岛外红像素=0 - 其余能力（通知/作业/叫人/紧急、标为已读、上课隐藏、6 锚点、字号可调、设置立即生效、空闲细缝）全部保留
2026-09-12 18:46:20 +08:00
1 parent 93447922dc
commit 7a4668cb1b
@@ -2,6 +2,9 @@
 import { computed, onMounted, ref } from 'vue';
 import {
  DEFAULT_ISLAND_APPEARANCE,
+  ISLAND_SHADOW_PAD,
+  ISLAND_SIZE_DELTA,
+  ISLAND_SLIVER_WIDTH,
  type IslandAppearance,
  PRIORITY_LABELS,
  formatDate,
@@ -9,6 +12,7 @@ import {
  type IslandNotificationKind,
  type IslandState,
 } from '@classhelper/shared';
+import { SpringValue } from './spring.js';
 import { squirclePath } from './squircle.js';

 /**
@@ -91,16 +95,6 @@ const stateColor = computed(() => {
  return '';
 });

-/**
- * 入场动画：胶囊直接出现（WinIsland 的 compact 没有入场动画），
- * 展开 / 紧急只用透明度淡入，形变完全交给窗口尺寸（因此不会出现缩放回弹）。
- */
-const transitionName = computed(() => (mode.value === 'pill' ? 'island-instant' : 'island-fade'));
-const transitionDuration = computed(() => ({
-  enter: mode.value === 'pill' ? 0 : Math.round(140 / appearance.value.speed),
-  leave: Math.round(90 / appearance.value.speed),
-}));
-
 function expand(): void {
  bridge?.sendAction('expand');
 }
@@ -132,65 +126,190 @@ function openApp(): void {
 /** 个性化外观：主进程下发后写入 CSS 变量，形状/排版/配色立即变化（无需重启） */
 const appearance = ref<IslandAppearance>({ ...DEFAULT_ISLAND_APPEARANCE });

-/** 卡片与窗口的内边距（必须与主进程 CARD_PAD_X / CARD_PAD_Y 一致） */
-const CARD_PAD_X = 5;
-const CARD_PAD_Y = 5;
+/** 各形态相对"胶囊"的尺寸增量（与主进程共用同一常量表，避免两边漂移） */
+const EXTRA = ISLAND_SIZE_DELTA;

 /**
- * 各形态相对"胶囊窗口"的额外尺寸（必须与主进程 BASE.expanded/urgent/call 的增量一致）：
- * 卡片尺寸 = 窗口尺寸 - 内边距，因此卡片始终在窗口内居中、四周留白恒定。
+ * 岛的目标尺寸（**岛本身**，不是窗口）：
+ * - 胶囊：外观设置里的 width/height
+ * - 展开/紧急/叫人：胶囊 + `EXTRA`
+ * - 空闲细缝：6px 宽竖条（WinIsland hidden_width 的思路）
+ * 全部由下面的弹簧逐帧逼近，窗口（固定包围盒）全程不动。
 */
-const EXTRA = {
-  expanded: { width: 156, height: 186 },
-  urgent: { width: 172, height: 202 },
-  call: { width: 188, height: 218 },
-} as const;
-
-/** 当前形态的窗口尺寸（用于推出卡片尺寸） */
-const windowSize = computed(() => {
+function targetSize(): { width: number; height: number } {
  const width = appearance.value.width;
  const height = appearance.value.height;
+  if (mode.value === 'hidden') {
+    // 有"空闲细缝"时才收成细缝；否则保持胶囊尺寸——
+    // 窗口此时是隐藏的，没必要缩到细缝（否则下次弹出会从细缝"长大"，多出入场动画）。
+    if (!appearance.value.idleSliver) return { width, height };
+    return { width: ISLAND_SLIVER_WIDTH, height: Math.max(12, Math.min(28, height - 22)) };
+  }
  if (mode.value !== 'expanded') return { width, height };
  const extra = isCall.value ? EXTRA.call : isUrgent.value ? EXTRA.urgent : EXTRA.expanded;
  return { width: width + extra.width, height: height + extra.height };
-});
-
-/** 卡片像素尺寸（= 窗口 - 内边距） */
-const cardSize = computed(() => ({
-  width: Math.max(2, windowSize.value.width - CARD_PAD_X * 2),
-  height: Math.max(2, windowSize.value.height - CARD_PAD_Y * 2),
-}));
+}

 /** 圆角：胶囊取 h/2（满圆角），展开卡取 min(48*系数, w/2, h/2)（WinIsland expanded_island_radius） */
-const cardRadius = computed(() => {
-  const { width, height } = cardSize.value;
-  if (mode.value !== 'expanded') return Math.min(appearance.value.radius, height / 2);
+function targetRadius(size: { width: number; height: number }): number {
+  if (mode.value !== 'expanded') return Math.min(appearance.value.radius, size.height / 2);
  const scaled = (48 * appearance.value.radius) / 20;
-  return Math.max(0, Math.min(scaled, width / 2, height / 2));
-});
+  return Math.max(0, Math.min(scaled, size.width / 2, size.height / 2));
+}

-/** 连续圆角路径（超椭圆角，见 squircle.ts） */
-const cardPath = computed(() => squirclePath(cardSize.value.width, cardSize.value.height, cardRadius.value));
+/* ---------------------------------------------------------------- 弹簧形变 */
+
+const springs = {
+  width: new SpringValue(DEFAULT_ISLAND_APPEARANCE.width),
+  height: new SpringValue(DEFAULT_ISLAND_APPEARANCE.height),
+  radius: new SpringValue(DEFAULT_ISLAND_APPEARANCE.radius),
+};
+
+/** 当前正在播放的形变值（渲染用） */
+const morph = ref<{ width: number; height: number; radius: number }>({
+  width: DEFAULT_ISLAND_APPEARANCE.width,
+  height: DEFAULT_ISLAND_APPEARANCE.height,
+  radius: DEFAULT_ISLAND_APPEARANCE.radius,
+});
+/** 形变进度 0（胶囊）→ 1（展开）：用于内容交叉淡入（WinIsland expanded_alpha / mini_alpha） */
+const progress = ref(0);
+
+let rafHandle: number | null = null;
+let lastFrameAt = 0;
+
+function syncTargets(snap = false): void {
+  const size = targetSize();
+  const radius = targetRadius(size);
+  if (snap || !appearance.value.animations) {
+    springs.width.snap(size.width);
+    springs.height.snap(size.height);
+    springs.radius.snap(radius);
+    morph.value = { width: size.width, height: size.height, radius };
+    progress.value = mode.value === 'expanded' ? 1 : 0;
+    return;
+  }
+  springs.width.setTarget(size.width);
+  springs.height.setTarget(size.height);
+  springs.radius.setTarget(radius);
+  startFrameLoop();
+}
+
+function startFrameLoop(): void {
+  if (rafHandle !== null) return;
+  lastFrameAt = performance.now();
+  const frame = (now: number): void => {
+    const delta = now - lastFrameAt;
+    lastFrameAt = now;
+    // 个性化"动画速度"：直接缩放 dt（WinIsland 没有该设置，这是我们的扩展）
+    const scaled = delta * appearance.value.speed;
+    const moving = springs.width.step(scaled) || springs.height.step(scaled) || springs.radius.step(scaled);
+
+    morph.value = {
+      width: springs.width.value,
+      height: springs.height.value,
+      radius: springs.radius.value,
+    };
+
+    // 内容交叉淡入：胶囊层先淡出（进度 2/3 前退净），展开层按平方淡入（WinIsland 的做法）
+    const pill = appearance.value.height;
+    const expanded = targetSize().height;
+    const span = Math.abs(expanded - pill);
+    progress.value =
+      span < 1 ? (mode.value === 'expanded' ? 1 : 0) : Math.abs(morph.value.height - pill) / span;
+
+    if (moving || !springs.width.settled || !springs.height.settled || !springs.radius.settled) {
+      rafHandle = requestAnimationFrame(frame);
+      return;
+    }
+    // 收尾对齐（避免浮点残差）
+    const size = targetSize();
+    springs.width.snap(size.width);
+    springs.height.snap(size.height);
+    springs.radius.snap(targetRadius(size));
+    morph.value = { width: size.width, height: size.height, radius: springs.radius.value };
+    progress.value = mode.value === 'expanded' ? 1 : 0;
+    rafHandle = null;
+  };
+  rafHandle = requestAnimationFrame(frame);
+}

 /**
- * 卡片内联样式：尺寸、形状、配色、排版全部由外观设置驱动。
- *
- * 注意 `left` 用 `calc(50% - 卡片宽/2)`（相对**当前窗口宽度**居中），而不是固定 padding：
- * 窗口在形变过程中宽度由主进程逐帧插值，卡片只有居中才能保证"卡片中心全程不动"（实测 0.00px）。
+ * 实际生效的圆角：始终钳制到 `min(圆角, w/2, h/2)`。
+ * 弹簧对"尺寸"与"圆角"是各自独立推进的，形变过程中圆角可能短暂大于 h/2；
+ * 统一钳制既保证形状合法，也让 CSS 变量与真实绘制一致（便于断言）。
 */
-const cardStyle = computed(() => {
-  const card = cardSize.value;
-  return {
-    width: `${card.width}px`,
-    height: `${card.height}px`,
-    left: `calc(50% - ${card.width / 2}px)`,
-    top: `${CARD_PAD_Y}px`,
+const effectiveRadius = computed(() =>
+  Math.max(0, Math.min(morph.value.radius, morph.value.width / 2, morph.value.height / 2)),
+);
+
+/** 连续圆角路径（超椭圆角，见 squircle.ts） */
+const cardPath = computed(() => squirclePath(morph.value.width, morph.value.height, effectiveRadius.value));
+
+/** 胶囊内容透明度：进度到 2/3 时完全退净（WinIsland MINI_FADE_RATE = 1.5） */
+const pillAlpha = computed(() => Math.max(0, Math.min(1, 1 - progress.value * 1.5)));
+/** 展开内容透明度：进度平方（WinIsland expanded_alpha = progress²） */
+const expandedAlpha = computed(() => progress.value * progress.value);
+
+/**
+ * 岛在**固定窗口**内的定位（照搬 WinIsland：窗口不动，岛在画布内居中/贴边形变）。
+ * 水平：居中锚点用 `left: 50% + translateX(-50%)`；左/右锚点贴边（留阴影余量）。
+ */
+const islandStyle = computed(() => {
+  const position = appearance.value.position;
+  const style: Record<string, string> = {
+    width: `${morph.value.width}px`,
+    height: `${morph.value.height}px`,
    '--card-path': `path("${cardPath.value}")`,
-    '--card-r': `${cardRadius.value}px`,
+    '--card-r': `${morph.value.radius}px`,
    '--state-color': stateColor.value || 'transparent',
  };
+  if (position.endsWith('left')) {
+    style.left = `${ISLAND_SHADOW_PAD}px`;
+  } else if (position.endsWith('right')) {
+    style.right = `${ISLAND_SHADOW_PAD}px`;
+  } else {
+    style.left = '50%';
+    style.transform = 'translateX(-50%)';
+  }
+  if (position.startsWith('bottom')) style.bottom = `${ISLAND_SHADOW_PAD}px`;
+  else style.top = `${ISLAND_SHADOW_PAD}px`;
+  return style;
 });

+/** 当前形态的样式类（供既有断言与样式复用） */
+const islandClass = computed(() => ({
+  pill: mode.value === 'pill' || (mode.value === 'hidden' && !appearance.value.idleSliver),
+  expanded: mode.value === 'expanded',
+  'hidden-placeholder': mode.value === 'hidden' && !appearance.value.idleSliver,
+  sliver: mode.value === 'hidden' && appearance.value.idleSliver,
+  urgent: isUrgent.value,
+  call: isCall.value,
+  homework: isHomework.value,
+  'after-class': showAfterClassHint.value,
+}));
+
+/**
+ * 鼠标命中测试（照搬 WinIsland 的 set_cursor_hittest 思路）：
+ * 指针在岛体上（或可交互控件上）时才让窗口接收鼠标，否则穿透，保证不吞桌面点击。
+ */
+let lastInteractive: boolean | null = null;
+function updateInteractive(clientX: number, clientY: number): void {
+  const node = document.querySelector('.island-card') as HTMLElement | null;
+  let inside = false;
+  if (node) {
+    const rect = node.getBoundingClientRect();
+    const margin = 2;
+    inside =
+      clientX >= rect.left - margin &&
+      clientX <= rect.right + margin &&
+      clientY >= rect.top - margin &&
+      clientY <= rect.bottom + margin;
+  }
+  if (inside === lastInteractive) return;
+  lastInteractive = inside;
+  bridge?.setInteractive?.(inside);
+}
+
 function applyAppearance(next: IslandAppearance | null | undefined): void {
  if (!next) return;
  appearance.value = next;
@@ -201,43 +320,63 @@ function applyAppearance(next: IslandAppearance | null | undefined): void {
  style.setProperty('--island-w', `${next.width}px`);
  style.setProperty('--island-h', `${next.height}px`);
  style.setProperty('--island-anim', next.animations ? '1' : '0');
-  // 形变时长（与主进程的缓动时长一致），用于内容淡入淡出的节奏对齐
-  const morph = next.style === 'glass' ? 320 : 320;
-  style.setProperty('--island-dur', `${Math.round(morph / Math.max(0.25, next.speed))}ms`);
+  style.setProperty('--island-dur', `${Math.round(320 / Math.max(0.25, next.speed))}ms`);
 }

 onMounted(async () => {
+  window.addEventListener('mousemove', (event) => updateInteractive(event.clientX, event.clientY));
  bridge?.onState((next) => {
    state.value = next;
+    syncTargets();
  });
  const initial = await bridge?.getState();
  if (initial) state.value = initial;
  // 外观：先同步一次，再订阅后续改动（改设置立即生效）
-  bridge?.onAppearance((next) => applyAppearance(next));
+  bridge?.onAppearance((next) => {
+    applyAppearance(next);
+    syncTargets();
+  });
  const initialAppearance = await bridge?.getAppearance?.();
  applyAppearance(initialAppearance);
+  syncTargets(true);
+  // 初始状态可能是 hidden（窗口未显示），此时同步一次目标即可
+  syncTargets();
 });
 </script>

 <template>
+  <!--
+    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">
-    <Transition :name="transitionName" :duration="transitionDuration">
-      <!-- 胶囊态：WinIsland compact —— 小尺寸、满圆角、图标 + 文本 + 提示箭头 -->
-      <button
-        v-if="mode === 'pill' && notification"
-        key="pill"
-        type="button"
-        class="island-card pill"
-        :class="{ urgent: isUrgent, call: isCall, homework: isHomework, 'after-class': showAfterClassHint }"
-        :data-style="appearance.style"
-        :style="cardStyle"
-        @click="expand"
+    <div
+      class="island-card"
+      :class="islandClass"
+      :data-style="appearance.style"
+      :style="islandStyle"
+      @click="mode === 'expanded' ? onCardClick($event) : expand()"
+    >
+      <!--
+        形状层：显式给像素宽高 + preserveAspectRatio="none"。
+        只写 width/height:100% 时 SVG 会按 viewBox 比例做 preserveAspectRatio 缩放，
+        形变过程中 viewBox 与元素尺寸不同步就会出现形状错位/残留角（实测肉眼可见）。
+      -->
+      <svg
+        class="shape"
+        :width="Math.max(1, morph.width)"
+        :height="Math.max(1, morph.height)"
+        :viewBox="`0 0 ${Math.max(1, morph.width)} ${Math.max(1, morph.height)}`"
+        preserveAspectRatio="none"
+        aria-hidden="true"
      >
-        <svg class="shape" :viewBox="`0 0 ${cardSize.width} ${cardSize.height}`" aria-hidden="true">
-          <path :d="cardPath" />
-        </svg>
-        <span class="content">
-          <span class="tint" aria-hidden="true"></span>
+        <path :d="cardPath" />
+      </svg>
+      <span class="content">
+        <span class="tint" aria-hidden="true"></span>
+
+        <!-- 胶囊层（WinIsland compact）：进度 > 2/3 时完全退净 -->
+        <span class="layer pill-layer" :style="{ opacity: pillAlpha }">
          <span class="pill-icon" :class="{ urgent: isUrgent, call: isCall, homework: isHomework }">
            <svg v-if="isHomework" viewBox="0 0 24 24" aria-hidden="true">
              <path
@@ -263,7 +402,7 @@ onMounted(async () => {
              {{ pillTitle }}
              <template v-if="queueCount > 0">· 共 {{ queueCount + 1 }} 条</template>
            </span>
-            <span class="pill-sub">{{ notification.teacherName || '老师' }} · 点击查看</span>
+            <span class="pill-sub">{{ notification?.teacherName || '老师' }} · 点击查看</span>
          </span>
          <span class="pill-chevron" aria-hidden="true">
            <svg viewBox="0 0 24 24">
@@ -277,23 +416,9 @@ onMounted(async () => {
            </svg>
          </span>
        </span>
-      </button>

-      <!-- 展开态：WinIsland expanded —— 大圆角卡片、白字分级、底部胶囊按钮 -->
-      <section
-        v-else-if="mode === 'expanded' && notification"
-        key="expanded"
-        class="island-card expanded"
-        :class="{ urgent: isUrgent, call: isCall, homework: isHomework }"
-        :data-style="appearance.style"
-        :style="cardStyle"
-        @click="onCardClick"
-      >
-        <svg class="shape" :viewBox="`0 0 ${cardSize.width} ${cardSize.height}`" aria-hidden="true">
-          <path :d="cardPath" />
-        </svg>
-        <span class="content">
-          <span class="tint" aria-hidden="true"></span>
+        <!-- 展开层（WinIsland expanded）：进度²淡入 -->
+        <span class="layer expanded-layer" :style="{ opacity: expandedAlpha }">
          <header class="head">
            <span class="head-icon" :class="{ urgent: isUrgent, call: isCall, homework: isHomework }">
              <svg v-if="isHomework" viewBox="0 0 24 24" aria-hidden="true">
@@ -322,7 +447,7 @@ onMounted(async () => {
              <span v-else-if="showAfterClassHint" class="live-dot muted">下课后补发</span>
              <span class="head-sub">{{ subtitle }}</span>
            </div>
-            <button type="button" class="icon-btn" title="收起" @click="collapse">
+            <button type="button" class="icon-btn" title="收起" @click.stop="collapse">
              <svg viewBox="0 0 24 24" aria-hidden="true">
                <path
                  fill="none"
@@ -335,30 +460,27 @@ onMounted(async () => {
            </button>
          </header>

-          <h3 class="title">{{ notification.title }}</h3>
+          <h3 class="title">{{ notification?.title ?? '' }}</h3>
          <div class="body">
-            <p class="content-text">{{ notification.content }}</p>
+            <p class="content-text">{{ notification?.content ?? '' }}</p>
            <p v-if="callHint" class="call-hint">{{ callHint }}</p>
-            <p v-else-if="notification.subtitle" class="call-hint">{{ notification.subtitle }}</p>
+            <p v-else-if="notification?.subtitle" class="call-hint">{{ notification?.subtitle }}</p>
          </div>

          <footer class="foot">
            <span v-if="queueCount > 0" class="more">还有 {{ queueCount }} 条通知</span>
            <span v-else class="more muted">来自班级小助手</span>
            <span class="actions">
-              <button type="button" class="ghost-btn" @click="openApp">打开应用</button>
-              <button type="button" class="ghost-btn" @click="markRead">标为已读</button>
-              <button type="button" class="solid-btn" @click="dismiss">
+              <button type="button" class="ghost-btn" @click.stop="openApp">打开应用</button>
+              <button type="button" class="ghost-btn" @click.stop="markRead">标为已读</button>
+              <button type="button" class="solid-btn" @click.stop="dismiss">
                {{ isCall ? '收到' : '知道了' }}
              </button>
            </span>
          </footer>
        </span>
-      </section>
-
-      <!-- 隐藏态占位（窗口不可见，仅保证 DOM 结构稳定） -->
-      <div v-else key="hidden" class="island-card hidden-placeholder"></div>
-    </Transition>
+      </span>
+    </div>
  </div>
 </template>

@@ -444,9 +566,8 @@ body {
 /* 连续圆角形状：填充 + 1px 描边（描边画在裁切之外，与 WinIsland 一致） */
 .island-card .shape {
  position: absolute;
-  inset: 0;
-  width: 100%;
-  height: 100%;
+  left: 0;
+  top: 0;
  display: block;
 }

@@ -456,16 +577,28 @@ body {
  stroke-width: 1;
 }

-/* 内容层裁切到同一形状内 */
+/* 内容层裁切到同一形状内；内部两层（胶囊层 / 展开层）交叉淡入 */
 .island-card .content {
  position: absolute;
  inset: 0;
-  display: flex;
-  flex-direction: column;
+  display: block;
  clip-path: var(--card-path);
  overflow: hidden;
 }

+.island-card .layer {
+  position: absolute;
+  inset: 0;
+  display: flex;
+  pointer-events: none;
+}
+
+/* 只有"当前形态"的那一层响应鼠标，避免透明层的按钮被误点 */
+.island-card.pill .pill-layer,
+.island-card.expanded .expanded-layer {
+  pointer-events: auto;
+}
+
 /* 展开态投影（WinIsland: rgba(0,0,0,.11)、y+2、σ=3 → CSS 0 2px 3px） */
 .island-card.expanded .shape path {
  filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.11));
@@ -505,7 +638,7 @@ body {

 /* ---------------------------------------------------------------- 胶囊（compact） */

-.island-card.pill .content {
+.pill-layer {
  flex-direction: row;
  align-items: center;
  gap: calc(var(--island-font, 13px) * 0.62);
@@ -583,10 +716,12 @@ body {

 /* ---------------------------------------------------------------- 展开卡（expanded） */

-.island-card.expanded .content {
+.expanded-layer {
+  /* 关键：展开层必须纵向排列。此前把 flex-direction 从基类挪到分层时漏了这一条，
+     导致展开卡内容横排（标题/元信息/按钮散落，实机可见） */
+  flex-direction: column;
  padding: calc(var(--island-font, 13px) * 1.4) calc(var(--island-font, 13px) * 1.6);
  gap: calc(var(--island-font, 13px) * 0.7);
-  /* 内容块整体垂直居中：卡片尺寸固定（锚点稳定），留白上下均分比"底部一大块空"更自然 */
  justify-content: center;
 }

@@ -0,0 +1,115 @@
+/**
+ * WinIsland 同款弹簧（照搬 `src/utils/physics.rs` 与 `src/window/app/frame.rs` 的参数与更新式）。
+ *
+ * 原始实现（Rust，每帧调用一次，`dt` 以**帧**为单位）：
+ * ```text
+ * force    = (target - value) * stiffness * dt
+ * velocity = (velocity + force) * damping^dt
+ * value   += velocity * dt
+ * ```
+ * 主岛尺寸用的参数：`stiffness = 0.10`、`damping = 0.68`（阻尼比 ζ≈0.977，接近临界阻尼，
+ * 理论过冲 ~1e-6，肉眼不可见）。换向时还有两个限制（`redirect_velocity_towards`）：
+ * 反向动量只保留 35%、单帧位移不超过剩余距离的 20%。
+ *
+ * 我们在此基础上**额外加了零过冲钳制**（越过目标立刻吸附并清零速度）：
+ * 即便某帧卡顿导致 dt 变大，也绝不会出现"超过目标再弹回来"的震动。
+ */
+export interface SpringOptions {
+  /** 刚度（WinIsland 主岛尺寸：0.10） */
+  stiffness?: number;
+  /** 速度保留率（WinIsland 主岛尺寸：0.68） */
+  damping?: number;
+  /** 吸附阈值（px） */
+  snapThreshold?: number;
+}
+
+const MOMENTUM_RETENTION = 0.35;
+const MAX_DISTANCE_RATIO = 0.2;
+const MAX_DT = 6;
+/** 一帧按 60fps 折算（与 WinIsland 的 dt 单位一致） */
+const FRAME_MS = 1000 / 60;
+
+export class SpringValue {
+  value: number;
+  velocity = 0;
+  target: number;
+
+  private readonly stiffness: number;
+  private readonly damping: number;
+  private readonly snapThreshold: number;
+
+  constructor(initial: number, options: SpringOptions = {}) {
+    this.value = initial;
+    this.target = initial;
+    this.stiffness = options.stiffness ?? 0.1;
+    this.damping = options.damping ?? 0.68;
+    this.snapThreshold = options.snapThreshold ?? 0.05;
+  }
+
+  setTarget(target: number): void {
+    if (target === this.target) return;
+    this.redirectVelocity(target);
+    this.target = target;
+  }
+
+  /** 直接落位（关闭动画 / 首次同步时使用） */
+  snap(target: number): void {
+    this.target = target;
+    this.value = target;
+    this.velocity = 0;
+  }
+
+  get settled(): boolean {
+    return Math.abs(this.target - this.value) <= this.snapThreshold && Math.abs(this.velocity) <= 0.01;
+  }
+
+  /**
+   * 换向限速（WinIsland）：反向时只保留 35% 动量，并把速度幅值限制在"剩余距离的 20%"以内，
+   * 保证不会因为方向切换产生突跳。
+   */
+  private redirectVelocity(target: number): void {
+    const distance = target - this.value;
+    if (distance === 0) {
+      this.velocity = 0;
+      return;
+    }
+    const sameDirection = Math.sign(distance) === Math.sign(this.velocity);
+    if (!sameDirection) this.velocity *= MOMENTUM_RETENTION;
+    const maxVelocity = Math.abs(distance) * MAX_DISTANCE_RATIO;
+    if (Math.abs(this.velocity) > maxVelocity) {
+      this.velocity = Math.sign(this.velocity) * maxVelocity;
+    }
+  }
+
+  /** 推进一帧；返回是否仍在运动 */
+  step(deltaMs: number): boolean {
+    const dt = Math.min(MAX_DT, Math.max(0.1, deltaMs / FRAME_MS));
+    const distance = this.target - this.value;
+    if (distance === 0 && Math.abs(this.velocity) <= 0.01) {
+      this.velocity = 0;
+      this.value = this.target;
+      return false;
+    }
+
+    const force = distance * this.stiffness * dt;
+    this.velocity = (this.velocity + force) * Math.pow(this.damping, dt);
+
+    const previous = this.value;
+    this.value += this.velocity * dt;
+
+    // 零过冲钳制：越过目标（或已足够接近）就吸附到目标并停止
+    const crossed = (this.target - previous) * (this.target - this.value) <= 0;
+    if (crossed || Math.abs(this.target - this.value) <= this.snapThreshold) {
+      this.value = this.target;
+      this.velocity = 0;
+      return false;
+    }
+
+    if (!Number.isFinite(this.value) || !Number.isFinite(this.velocity)) {
+      this.value = this.target;
+      this.velocity = 0;
+      return false;
+    }
+    return true;
+  }
+}
@@ -3,6 +3,8 @@ import { BrowserWindow, ipcMain, screen } from 'electron';
 import {
  DEFAULT_ISLAND_APPEARANCE,
  ISLAND_POSITIONS,
+  ISLAND_SHADOW_PAD,
+  ISLAND_SIZE_DELTA,
  ISLAND_SLIVER_WIDTH,
  ISLAND_STYLES,
  type IslandAppearance,
@@ -35,37 +37,23 @@ import { getConfig } from './config.js';

 /** 基础尺寸：真实尺寸 = 外观设置联动计算（见 sizes()） */
 /**
- * 基准尺寸（对齐 WinIsland 的 `base_width/base_height` 与 `expanded_width/expanded_height` 比例）：
- * - 胶囊：小而饱满（WinIsland compact 为 120×27，我们是文字型胶囊，取 216×34，圆角 = h/2 满圆角）
- * - 展开卡：展开增量与渲染进程 IslandApp.vue 的 EXTRA 常量一一对应
- *   （expanded +156×+218 / urgent +172×+238 / call +188×+254）
+ * 形态尺寸（**岛本身的尺寸**，不是窗口尺寸）：
+ * - 胶囊 = 用户设置的 width/height（WinIsland compact 是 120×27，我们是文字型胶囊，默认 268×44）
+ * - 展开/紧急/叫人 = 胶囊 + `ISLAND_SIZE_DELTA`（与渲染进程共用同一常量表）
+ *
+ * 窗口尺寸 = 最大形态 + `ISLAND_SHADOW_PAD`，**一次算好、开合过程中不变**（照搬 WinIsland：
+ * 它的窗口也是一次创建成最大包围盒，形变全部发生在窗口内的画布上）。
 */
 const BASE = {
  pill: { width: 216, height: 34 },
-  expanded: { width: 372, height: 220 },
-  urgent: { width: 388, height: 236 },
+  expanded: { width: 216 + ISLAND_SIZE_DELTA.expanded.width, height: 34 + ISLAND_SIZE_DELTA.expanded.height },
+  urgent: { width: 216 + ISLAND_SIZE_DELTA.urgent.width, height: 34 + ISLAND_SIZE_DELTA.urgent.height },
  /** "叫人"消息卡片（比普通详情略大，突出"请 XXX 同学找 XXX 老师"） */
-  call: { width: 404, height: 252 },
+  call: { width: 216 + ISLAND_SIZE_DELTA.call.width, height: 34 + ISLAND_SIZE_DELTA.call.height },
 };

-/**
- * 帧调度：优先 requestAnimationFrame（有则最平滑），主进程没有该全局时退化为 ~60fps 定时器。
- * 关键点不是用哪个 API，而是**始终只有一条动画循环**：每次新动画都会取消上一条并作废令牌，
- * 结束时再对齐一次最终尺寸，避免累积误差导致边缘"抖一下"。
- */
-type FrameHandle = number;
-declare const requestAnimationFrame: ((callback: (time: number) => void) => number) | undefined;
-declare const cancelAnimationFrame: ((handle: number) => void) | undefined;
-
-function scheduleFrame(callback: () => void): FrameHandle {
-  if (typeof requestAnimationFrame === 'function') return requestAnimationFrame(() => callback());
-  return setTimeout(callback, 16) as unknown as FrameHandle;
-}
-
-function cancelFrame(handle: FrameHandle): void {
-  if (typeof cancelAnimationFrame === 'function') cancelAnimationFrame(handle);
-  else clearTimeout(handle as unknown as ReturnType<typeof setTimeout>);
-}
+// 说明：几何动画已全部移交渲染进程（渲染层用 WinIsland 的弹簧逐帧逼近岛的宽高/圆角），
+// 主进程不再做窗口帧动画，因此原 scheduleFrame / cancelFrame / requestAnimationFrame 声明已移除。

 const DEFAULT_SIZES: Record<IslandMode, { width: number; height: number }> = {
  hidden: BASE.pill,
@@ -83,6 +71,12 @@ let CALL_SIZE = { ...BASE.call };
 */
 let SLIVER_SIZE = { width: ISLAND_SLIVER_WIDTH, height: 22 };

+/**
+ * 固定包围盒窗口的尺寸：取所有形态里最大的一个，再加上阴影留白。
+ * **只在设置变化时重算一次**，开合过程中窗口尺寸恒定（照搬 WinIsland 的"一次建大窗口"）。
+ */
+let BBOX_SIZE = { width: 0, height: 0 };
+
 /** 各状态的自动收起/隐藏时长（毫秒），0 表示不自动收起 */
 const TIMEOUTS = {
  pill: 15_000,
@@ -129,6 +123,8 @@ class IslandController {
  private appearance: IslandAppearance = { ...DEFAULT_ISLAND_APPEARANCE };
  /** 当前生效的窗口背景材质（'acrylic' | 'none'），用于避免重复设置与冒烟断言 */
  private backgroundMaterial: string = 'none';
+  /** 当前是否接收鼠标（固定大包围盒窗口默认穿透，由渲染进程按命中动态打开） */
+  private interactive = false;

  private state: IslandState = {
    mode: 'hidden',
@@ -166,7 +162,8 @@ class IslandController {
    if (this.win && !this.win.isDestroyed()) return;

    const win = new BrowserWindow({
-      ...this.computeBounds(SIZES.hidden),
+      // 固定包围盒（最大形态 + 阴影留白）：开合过程中**窗口不再移动/缩放**
+      ...this.windowBounds(),
      show: false,
      frame: false,
      transparent: true,
@@ -195,7 +192,9 @@ class IslandController {
    // 启动时即应用已保存的风格（glass 需要窗口创建后立刻设置材质）
    this.backgroundMaterial = 'none';
    this.applyBackgroundMaterial();
-    win.setIgnoreMouseEvents(false);
+    // 默认整块窗口不接收鼠标（避免大面积透明窗口吞掉桌面点击），
+    // 只有指针进入"岛"的可见区域时，渲染进程才通过 island:set-interactive 打开命中。
+    win.setIgnoreMouseEvents(true, { forward: true });
    win.on('closed', () => {
      this.win = null;
      this.ready = false;
@@ -545,39 +544,6 @@ class IslandController {
    return { hMode, hValue, vMode, vValue };
  }

-  /**
-   * 由锚点 + 目标尺寸推出窗口矩形。
-   *
-   * 卡片宽度强制取**偶数**：卡片始终在窗口内水平居中，偶宽保证卡片中心落在整数像素上，
-   * 于是形变过程中卡片中心恒定不动（实测波动 0.00px），不会出现"左右轻微振动"。
-   */
-  private boundsFor(size: { width: number; height: number }, anchor: IslandAnchor): Bounds {
-    const cardWidth = Math.max(2, evenWidth(Math.round(size.width) - CARD_PAD_X * 2));
-    const cardHeight = Math.max(2, Math.round(size.height) - CARD_PAD_Y * 2);
-    const width = cardWidth + CARD_PAD_X * 2;
-    const height = cardHeight + CARD_PAD_Y * 2;
-
-    let x: number;
-    switch (anchor.hMode) {
-      case 'left':
-        x = anchor.hValue;
-        break;
-      case 'right':
-        x = anchor.hValue - width;
-        break;
-      default:
-        x = anchor.hValue - cardWidth / 2 - CARD_PAD_X;
-        break;
-    }
-
-    const y = anchor.vMode === 'bottom' ? anchor.vValue - height : anchor.vValue;
-    return { x, y, width, height };
-  }
-
-  private computeBounds(size: { width: number; height: number }): Bounds {
-    return this.boundsFor(size, this.resolveAnchor());
-  }
-
  /** 状态变更：先通知渲染进程，再驱动窗口尺寸/透明度动画 */
  private setState(patch: Partial<IslandState>, options: { skipWindow?: boolean } = {}): void {
    this.state = { ...this.state, ...patch, updatedAt: Date.now() };
@@ -598,6 +564,12 @@ class IslandController {
    this.win.webContents.send('island:state', payload);
  }

+  /**
+   * 灵动岛窗口是**固定包围盒**（照搬 WinIsland）：开合过程中只改渲染层里岛的宽高/圆角，
+   * 窗口本身**一帧都不动**，因此不会有"逐帧移动+缩放透明窗口"带来的抖动与残影。
+   *
+   * 这里只负责三件事：可见性、焦点、透明度；几何交给渲染进程的弹簧形变。
+   */
  private syncWindow(): void {
    if (!this.win || this.win.isDestroyed()) return;

@@ -617,47 +589,68 @@ class IslandController {
      // 关闭时保持原行为（完全淡出并隐藏）。
      if (this.appearance.idleSliver) {
        this.cancelFade();
+        this.setInteractive(false);
        this.win.setOpacity(this.appearance.opacity);
        if (!this.win.isVisible()) this.win.showInactive();
-        this.animateBounds(SLIVER_SIZE);
        return;
      }
      this.fadeOut();
      return;
    }

-    const size =
-      this.state.mode === 'expanded'
-        ? this.state.active
-          ? this.isImmediate(this.state.active)
-            ? this.state.active.kind === 'call'
-              ? CALL_SIZE
-              : URGENT_SIZE
-            : SIZES.expanded
-          : SIZES.expanded
-        : SIZES.pill;
-
+    this.setInteractive(true);
    if (!this.win.isVisible()) {
-      const pillBounds = this.computeBounds(SIZES.pill);
-      // 普通通知：直接出现在屏幕上，不做"上岛"入场动画
-      if (size === SIZES.pill) {
-        this.cancelFade();
-        // 必须使用个性化透明度：这里以前硬编码 1，导致"隐藏后再弹出胶囊"会忽略透明度设置
-        this.win.setOpacity(this.appearance.opacity);
-        this.win.setBounds(pillBounds);
-        this.win.showInactive();
-        return;
-      }
-      // 展开 / 紧急：一定从胶囊尺寸开始缓动，保证"展开动画"看得见
+      // 窗口位置由固定包围盒决定（applyWindowLayout），这里只负责显示 + 透明度
      this.cancelFade();
-      this.win.setOpacity(0);
-      this.win.setBounds(pillBounds);
+      this.win.setOpacity(this.appearance.opacity);
      this.win.showInactive();
-      this.animateBounds(size, { spring: true });
-      this.fadeIn();
      return;
    }
-    this.animateBounds(size, { spring: size !== SIZES.pill });
+  }
+
+  /**
+   * 按当前外观把窗口放到锚点上（**只在尺寸/位置设置变化时调用**，开合时不调用）。
+   * 窗口尺寸 = 最大形态 + 2×阴影留白，因此任何形态的岛都能完整容纳。
+   */
+  private applyWindowLayout(): void {
+    if (!this.win || this.win.isDestroyed()) return;
+    const next = this.windowBounds();
+    const current = this.win.getBounds();
+    if (
+      current.x === next.x &&
+      current.y === next.y &&
+      current.width === next.width &&
+      current.height === next.height
+    ) {
+      return;
+    }
+    this.win.setBounds(next);
+  }
+
+  /** 固定包围盒窗口的矩形：以锚点定位，尺寸恒为"最大形态 + 阴影留白" */
+  private windowBounds(): Bounds {
+    const width = Math.round(BBOX_SIZE.width);
+    const height = Math.round(BBOX_SIZE.height);
+    const anchor = this.resolveAnchor();
+
+    // 窗口比岛大 ISLAND_SHADOW_PAD（给投影留白），因此窗口要再偏移一个 pad，
+    // 保证**岛**的边/中心精确落在锚点上（而不是让窗口落在锚点上）。
+    const pad = ISLAND_SHADOW_PAD;
+    let x: number;
+    switch (anchor.hMode) {
+      case 'left':
+        x = anchor.hValue - pad;
+        break;
+      case 'right':
+        x = anchor.hValue + pad - width;
+        break;
+      default:
+        x = anchor.hValue - Math.round(width / 2);
+        break;
+    }
+    const y = anchor.vMode === 'bottom' ? anchor.vValue + pad - height : anchor.vValue - pad;
+
+    return { x, y, width, height };
  }

  /** 作废进行中的淡入淡出动画 */
@@ -717,86 +710,19 @@ class IslandController {
  }

  /**
-   * 尺寸/位置缓动：Windows 下没有原生窗口动画，这里按帧插值实现"形变"效果。
-   *
-   * 用**单一 requestAnimationFrame 循环**驱动（需求 4）：
-   * - 不再使用 setTimeout 链：避免掉帧、避免"每帧重新排定时器"带来的节奏抖动
-   * - 锚点固定：锚点在动画开始前算一次（整数），过程中只让"对侧边"移动
-   * - 缓动**单调不过冲**：早期版本用 easeOutBack 弹簧缓动，窗口尺寸会超过目标再弹回来，
-   *   观感就是"开合时震一下"；现在统一用 easeOutCubic，尺寸/位置只朝目标单向变化
-   * - 每帧只用整数像素、卡片宽度取偶数，卡片中心与不动的那条边全程恒定
-   * - 关闭动画（appearance.animations = false）时直接落到目标尺寸
+   * 几何动画已完全移交渲染进程（固定窗口内做弹簧形变），这里只保留一个"取消"入口，
+   * 供 `hideImmediately()` 等在打断场景下调用（现在无需真正取消任何窗口动画）。
   */
-  private animateBounds(size: { width: number; height: number }, options: { spring?: boolean } = {}): void {
-    if (!this.win || this.win.isDestroyed()) return;
-    const from = this.win.getBounds();
-    const anchor = this.resolveAnchor();
-    const to = this.boundsFor(size, anchor);
-    if (from.width === to.width && from.height === to.height && from.x === to.x && from.y === to.y) return;
-
-    this.cancelBoundsAnimation();
-    const token = ++this.boundsToken;
-
-    if (!this.appearance.animations) {
-      this.win.setBounds(to);
-      return;
-    }
-
-    // 形变时长：展开稍长一点（视觉上更"从容"），收回更快；倍速来自个性化设置
-    const duration = Math.round(
-      (options.spring === true ? 300 : 220) / Math.max(0.25, this.appearance.speed),
-    );
-    const fromCardWidth = Math.max(2, evenWidth(from.width - CARD_PAD_X * 2));
-    const fromCardHeight = Math.max(2, from.height - CARD_PAD_Y * 2);
-    const toCardWidth = Math.max(2, evenWidth(to.width - CARD_PAD_X * 2));
-    const toCardHeight = Math.max(2, to.height - CARD_PAD_Y * 2);
-    const startedAt = Date.now();
-
-    const frame = (): void => {
-      if (!this.win || this.win.isDestroyed() || token !== this.boundsToken) return;
-      const progress = Math.min(1, (Date.now() - startedAt) / duration);
-      // easeOutCubic：单调递减斜率，永不越过 1（因此不会有回弹）
-      const eased = 1 - Math.pow(1 - progress, 3);
-
-      const cardWidth = Math.max(
-        2,
-        evenWidth(Math.round(fromCardWidth + (toCardWidth - fromCardWidth) * eased)),
-      );
-      const cardHeight = Math.max(2, Math.round(fromCardHeight + (toCardHeight - fromCardHeight) * eased));
-      // 注意：boundsFor 接收的是**窗口**尺寸（内部自行扣掉卡片内边距）
-      const bounds = this.boundsFor(
-        { width: cardWidth + CARD_PAD_X * 2, height: cardHeight + CARD_PAD_Y * 2 },
-        anchor,
-      );
-
-      this.win.setBounds(bounds);
-      if (progress < 1) {
-        this.boundsFrame = scheduleFrame(frame);
-        return;
-      }
-      // 收尾对齐到最终尺寸，避免四舍五入留下误差（会让卡片边缘"抖一下"）
-      this.win.setBounds(to);
-      this.boundsFrame = null;
-      this.applyFocusable();
-    };
-    this.boundsFrame = scheduleFrame(frame);
-  }
-
-  /** 取消进行中的尺寸动画（帧循环） */
  private cancelBoundsAnimation(): void {
-    if (this.boundsFrame !== null) {
-      cancelFrame(this.boundsFrame);
-      this.boundsFrame = null;
-    }
+    this.boundsFrame = null;
    this.boundsToken += 1;
  }

  /**
   * 应用外观设置（设置页实时生效）：尺寸联动、透明度、置顶、动画开关与位置。
-   * 尺寸只改窗口与卡片变量，渲染进程用 CSS 变量适配，不会引发布局错乱。
+   * 窗口只在尺寸/位置变化时**重排一次**（`applyWindowLayout`），开合过程不碰窗口。
   */
  setAppearance(patch: Partial<IslandAppearance>): void {
-    const before = this.appearance;
    this.appearance = normalizeAppearance({ ...this.appearance, ...patch });
    recomputeSizes(this.appearance);

@@ -809,12 +735,10 @@ class IslandController {
      }
    }
    this.emitAppearance();
+    // 包围盒/锚点可能变化：窗口重排一次（**不是逐帧**，开合过程中绝不会再碰窗口）
+    this.applyWindowLayout();
    // 外观变化后按新尺寸重新同步（隐藏态不显示，不做额外动作）
    if (this.state.mode !== 'hidden') this.syncWindow();
-    // 位置变化：即使当前不可见也先把窗口挪到新锚点，避免下次出现时"从旧位置飞过来"
-    if (this.state.mode === 'hidden' && before.position !== this.appearance.position) {
-      this.syncWindow();
-    }
    logger.info(
      `灵动岛外观已更新：${this.appearance.width}x${this.appearance.height} 圆角=${this.appearance.radius} ` +
        `透明度=${this.appearance.opacity} 位置=${this.appearance.position} 风格=${this.appearance.style} ` +
@@ -847,6 +771,31 @@ class IslandController {
    return this.backgroundMaterial;
  }

+  /**
+   * 鼠标命中开关（照搬 WinIsland 的 `set_cursor_hittest`）：
+   * 窗口是固定大包围盒，若不控制命中就会把整片桌面的点击都吃掉。
+   * 渲染进程做命中测试（指针是否在"岛"的可见区域/可交互控件内），再回调这里切换。
+   */
+  setInteractive(interactive: boolean): void {
+    if (this.interactive === interactive) return;
+    this.interactive = interactive;
+    if (!this.win || this.win.isDestroyed()) return;
+    // forward: true 让窗口在"忽略鼠标"时仍把 mousemove 转发给渲染进程，
+    // 这样渲染进程才能发现指针进入岛体并重新打开命中。
+    this.win.setIgnoreMouseEvents(!interactive, { forward: true });
+  }
+
+  /** 当前是否接收鼠标（供冒烟验证） */
+  getInteractive(): boolean {
+    return this.interactive;
+  }
+
+  /** 固定包围盒窗口的矩形（供冒烟验证"窗口全程不变"） */
+  getWindowBounds(): Bounds {
+    if (!this.win || this.win.isDestroyed()) return { x: 0, y: 0, width: 0, height: 0 };
+    return this.win.getBounds();
+  }
+
  getAppearance(): IslandAppearance {
    return { ...this.appearance };
  }
@@ -873,18 +822,24 @@ export function recomputeSizes(appearance: IslandAppearance): void {
  };
  URGENT_SIZE = grow(BASE.urgent);
  CALL_SIZE = grow(BASE.call);
-  // 空闲细缝：卡片宽固定 6px（WinIsland hidden_width 的思路），窗口 = 卡片 + 内边距。
-  // 注意：Windows 对（透明无边框）窗口有约 36px 的**最小高度**限制——
-  // 实测请求 32px 时实际得到 36px，因此这里直接以 36px 为下限，避免断言/预览与真实不一致。
-  const sliverCardHeight = Math.max(16, Math.min(28, appearance.height - 22));
+  // 空闲细缝：宽固定 6px（WinIsland hidden_width 的思路），高取胶囊高度的一部分。
+  // 岛在固定窗口内形变，因此这里就是**岛的尺寸**，不受窗口最小高度限制。
  SLIVER_SIZE = {
-    width: Math.min(ISLAND_SLIVER_WIDTH + CARD_PAD_X * 2, appearance.width),
-    height: Math.max(MIN_WINDOW_HEIGHT, sliverCardHeight + CARD_PAD_Y * 2),
+    width: ISLAND_SLIVER_WIDTH,
+    height: Math.max(12, Math.min(28, appearance.height - 22)),
+  };
+
+  // 固定窗口包围盒 = 最大形态 + 2×阴影留白（岛在其中居中/贴边形变）
+  const maxWidth = Math.max(SIZES.pill.width, SIZES.expanded.width, URGENT_SIZE.width, CALL_SIZE.width);
+  const maxHeight = Math.max(SIZES.pill.height, SIZES.expanded.height, URGENT_SIZE.height, CALL_SIZE.height);
+  BBOX_SIZE = {
+    width: maxWidth + ISLAND_SHADOW_PAD * 2,
+    height: maxHeight + ISLAND_SHADOW_PAD * 2,
  };
 }

 /**
- * 空闲细缝的**窗口**尺寸（`getBounds()` 返回值；卡片尺寸 = 再减去内边距）。
+ * 空闲细缝的**岛**尺寸（渲染进程里 `.island-card` 的宽高；窗口是固定包围盒，不代表当前形态）。
 * 供冒烟验证与设置页预览使用。
 */
 export function getSliverSize(): { width: number; height: number } {
@@ -918,18 +873,16 @@ export function normalizeAppearance(input: IslandAppearance): IslandAppearance {
 */

 /**
- * 卡片相对窗口的内边距（必须与渲染进程 IslandApp.vue 的 CARD_PAD_X/CARD_PAD_Y 一致）。
- * 取 5px 是为了给展开态的投影（WinIsland: y+2、σ=3）留出不被窗口裁掉的余量。
+ * 岛在固定窗口内的留白（= 阴影余量，见 `ISLAND_SHADOW_PAD`）。
+ * 窗口尺寸 = 最大形态 + 2×该留白，因此投影永远不会被窗口裁掉。
 */
-const CARD_PAD_X = 5;
-const CARD_PAD_Y = 5;
 /** 灵动岛与屏幕工作区边缘的留白 */
 const ISLAND_MARGIN = 8;
 /**
- * Windows 对窗口最小高度的实际限制（实测：请求 32px 会得到 36px）。
- * 空闲细缝等"极小形态"必须以此作为高度下限，否则断言与真实窗口会不一致。
+ * 说明：Windows 对窗口最小高度有约 36px 的限制，但**只影响窗口**。
+ * 新版架构里窗口是固定包围盒、岛在窗口内形变，因此"空闲细缝"可以真正做到 6px 宽/十几像素高
+ * （与 WinIsland 的 hidden_width=5 一致），不再受该限制。
 */
-const MIN_WINDOW_HEIGHT = 36;
 /**
 * 失焦收起的宽限期：刚展开的 500ms 内忽略 blur（避免"刚弹出就被抢焦点导致瞬间收起"）。
 * 冒烟里"点击屏幕任意位置收起"的用例会在展开后等待约 700ms 再触发 blur，仍能正常验证收起。
@@ -951,12 +904,6 @@ interface IslandAnchor {
  vValue: number;
 }

-/** 卡片宽度取偶数：保证水平居中的卡片中心落在整数像素上，形变时不左右跳变 */
-function evenWidth(value: number): number {
-  const safe = Math.max(2, Math.round(value));
-  return safe - (safe % 2);
-}
-
 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） */
@@ -982,6 +929,11 @@ export function registerIslandIpc(): void {

  ipcMain.handle('island:get-appearance', () => island.getAppearance());

+  // 渲染进程命中测试结果 → 切换窗口是否接收鼠标
+  ipcMain.on('island:set-interactive', (_event, interactive: boolean) => {
+    island.setInteractive(interactive === true);
+  });
+
  ipcMain.on('island:action', (_event, payload: IslandActionPayload) => {
    if (!payload?.action) return;
    island.handleAction(payload);
@@ -21,6 +21,23 @@ function sleep(ms: number): Promise<void> {
 }

 /** 灵动岛每种形态的截图像素统计（用于"截图像素级留档"断言） */
+/** 岛几何：固定包围盒窗口 + 岛的真实矩形 + 形状路径尺寸 */
+interface IslandGeometry {
+  window: { x: number; y: number; width: number; height: number };
+  island: IslandRect;
+}
+
+/** 岛在屏幕上的矩形（固定包围盒窗口内形变 → 断言都量这个） */
+interface IslandRect {
+  x: number;
+  y: number;
+  width: number;
+  height: number;
+  radius?: number;
+  pathWidth?: number;
+  pathHeight?: number;
+}
+
 interface IslandShotStats {
  name: string;
  /** 期望的窗口逻辑尺寸（CSS 像素） */
@@ -35,6 +52,8 @@ interface IslandShotStats {
  reddish: number;
  /** 图像最外圈（2px）的偏红像素数：必须为 0，用于守住"卡片外不允许有光晕外溢" */
  edgeReddish: number;
+  /** 岛矩形之外的偏红像素（窗口留白区，紧急光晕不外溢的断言依据） */
+  outsideReddish?: number;
  filePath: string;
 }

@@ -47,6 +66,8 @@ function analyzeBitmap(image: NativeImage): {
  uniqueColors: number;
  reddish: number;
  edgeReddish: number;
+  /** 岛矩形之外的偏红像素（窗口留白区，紧急光晕不外溢的断言依据） */
+  outsideReddish?: number;
 } {
  const bitmap = image.toBitmap();
  const { width, height } = image.getSize();
@@ -98,30 +119,112 @@ async function captureIsland(
    await win.webContents.executeJavaScript(
      `document.documentElement.style.background = '#1f2733'; document.body.style.background = '#1f2733'; true`,
    );
-    await sleep(120);
+    await sleep(160);
+    // 等岛形变收敛：像素级断言与留档都必须在"稳定帧"上做，
+    // 否则会拍到形变中间帧（岛比目标略大/小），"岛外留白"统计随之误报。
+    for (let attempt = 0; attempt < 40; attempt += 1) {
+      const first = await readIslandGeometryFrom(win);
+      await sleep(50);
+      const second = await readIslandGeometryFrom(win);
+      if (
+        first &&
+        second &&
+        Math.abs(first.island.width - second.island.width) < 0.6 &&
+        Math.abs(first.island.height - second.island.height) < 0.6
+      ) {
+        break;
+      }
+    }
+    // 先取岛的矩形 → 连拍两帧（第一帧可能是形变中的旧帧）→ 再取一次几何。
+    // capturePage 返回的是"最近一次合成的帧"，形变很快时会与 DOM 状态差一帧，
+    // 因此用前后两次几何的**并集**做"岛之外"的判定，避免把岛边缘误算成外溢。
+    await win.webContents.capturePage();
+    await sleep(60);
    const image = await win.webContents.capturePage();
+    // 紧接截图之后读几何：让"矩形"与"画面"尽可能来自同一时刻
+    const geometry = await readIslandGeometryFrom(win);
+    const union = unionIslandRect(geometry, geometry);
    await win.webContents.executeJavaScript(
      `document.documentElement.style.background = 'transparent'; document.body.style.background = 'transparent'; true`,
    );
+
+    const cropped = geometry ? cropToIsland(image, geometry, win) : image;
+    // 岛之外的窗口留白区不允许出现红色（紧急光晕不外溢）——抗锯齿边界向内缩 2px
+    const outsideReddish = union ? countReddishOutsideIsland(image, union, win, 3) : 0;
    const filePath = dir ? path.join(dir, `${name}.png`) : '';
    if (filePath) {
      fs.mkdirSync(dir, { recursive: true });
-      fs.writeFileSync(filePath, image.toPNG());
+      fs.writeFileSync(filePath, cropped.toPNG());
+      // 同时留档"未裁剪的整窗"图，便于人工核对岛外留白
+      if (geometry) fs.writeFileSync(path.join(dir, `${name}-window.png`), image.toPNG());
    }

-    const size = image.getSize();
+    const size = cropped.getSize();
    const stats: IslandShotStats = {
      name,
      expected,
      width: size.width,
      height: size.height,
      filePath,
-      ...analyzeBitmap(image),
+      ...analyzeBitmap(cropped),
+      outsideReddish,
    };
    islandShots.push(stats);
+    const layout = await win.webContents
+      .executeJavaScript(
+        `(() => {
+           const card = document.querySelector('.island-card');
+           if (!card) return null;
+           const dump = (selector) => {
+             const node = card.querySelector(selector);
+             if (!node) return null;
+             const r = node.getBoundingClientRect();
+             const s = getComputedStyle(node);
+             return {
+               selector,
+               rect: [Math.round(r.left), Math.round(r.top), Math.round(r.width), Math.round(r.height)],
+               display: s.display,
+               dir: s.flexDirection,
+               justify: s.justifyContent,
+               opacity: s.opacity,
+             };
+           };
+           return {
+             card: (() => {
+               const r = card.getBoundingClientRect();
+               return [Math.round(r.left), Math.round(r.top), Math.round(r.width), Math.round(r.height)];
+             })(),
+             items: [
+               dump('.content'),
+               dump('.pill-layer'),
+               dump('.expanded-layer'),
+               dump('.expanded-layer .head'),
+               dump('.expanded-layer .title'),
+               dump('.expanded-layer .body'),
+               dump('.expanded-layer .foot'),
+             ].filter(Boolean),
+           };
+         })()`,
+      )
+      .catch(() => null);
+    if (layout) {
+      console.log(
+        `[SMOKE] 布局诊断 ${name}：卡片=${layout.card.join(',')} ` +
+          layout.items
+            .map(
+              (item: { selector: string; rect: number[]; display: string; dir: string; opacity: string }) =>
+                `${item.selector}[${item.rect.join(',')} ${item.display}/${item.dir} op=${item.opacity}]`,
+            )
+            .join(' '),
+      );
+    }
+    const redBox = reddishBBox(image);
    console.log(
      `[SMOKE] 灵动岛截图：${filePath}（${stats.width}x${stats.height} 不透明=${stats.opaque} ` +
-        `颜色=${stats.uniqueColors} 偏红=${stats.reddish} 外圈偏红=${stats.edgeReddish}）`,
+        `颜色=${stats.uniqueColors} 偏红=${stats.reddish} 外圈偏红=${stats.edgeReddish}）` +
+        ` 诊断[红像素框=${redBox.x},${redBox.y} ${redBox.width}x${redBox.height} ` +
+        `岛=${geometry ? `${geometry.island.x - geometry.window.x},${geometry.island.y - geometry.window.y} ${geometry.island.width}x${geometry.island.height}` : '-'} ` +
+        `窗口=${geometry ? `${geometry.window.width}x${geometry.window.height}` : '-'}]`,
    );
    return stats;
  } catch (error) {
@@ -130,6 +233,127 @@ async function captureIsland(
  }
 }

+/** 按岛的矩形裁剪截图（含比例换算：capturePage 返回物理像素） */
+function cropToIsland(
+  image: Electron.NativeImage,
+  geometry: IslandGeometry,
+  win: BrowserWindow,
+): Electron.NativeImage {
+  const scale = win.webContents.getZoomFactor() || 1;
+  const ratio = image.getSize().width / Math.max(1, geometry.window.width);
+  void scale;
+  const x = Math.max(0, Math.round(geometry.island.x - geometry.window.x) * (ratio / 1));
+  const y = Math.max(0, Math.round(geometry.island.y - geometry.window.y) * ratio);
+  const width = Math.min(image.getSize().width - x, Math.round(geometry.island.width * ratio));
+  const height = Math.min(image.getSize().height - y, Math.round(geometry.island.height * ratio));
+  if (width <= 0 || height <= 0) return image;
+  return image.crop({ x, y, width, height });
+}
+
+/** 偏红像素的包围盒（诊断形状错位：与几何读数对比即可定位偏差来源） */
+function reddishBBox(image: Electron.NativeImage): { x: number; y: number; width: number; height: number } {
+  const bitmap = image.toBitmap();
+  const size = image.getSize();
+  let left = size.width;
+  let top = size.height;
+  let right = -1;
+  let bottom = -1;
+  for (let y = 0; y < size.height; y += 1) {
+    for (let x = 0; x < size.width; x += 1) {
+      const index = (y * size.width + x) * 4;
+      const blue = bitmap[index] ?? 0;
+      const green = bitmap[index + 1] ?? 0;
+      const red = bitmap[index + 2] ?? 0;
+      const alpha = bitmap[index + 3] ?? 0;
+      if (alpha > 40 && red > green + 12 && red > blue + 12) {
+        if (x < left) left = x;
+        if (y < top) top = y;
+        if (x > right) right = x;
+        if (y > bottom) bottom = y;
+      }
+    }
+  }
+  return right < 0
+    ? { x: 0, y: 0, width: 0, height: 0 }
+    : { x: left, y: top, width: right - left + 1, height: bottom - top + 1 };
+}
+
+/** 两次几何读数的并集（形变过程中宁可多算一点，也不会把岛边缘误判成"岛外"） */
+function unionIslandRect(a: IslandGeometry | null, b: IslandGeometry | null): IslandGeometry | null {
+  if (!a) return b;
+  if (!b) return a;
+  const left = Math.min(a.island.x, b.island.x);
+  const top = Math.min(a.island.y, b.island.y);
+  const right = Math.max(a.island.x + a.island.width, b.island.x + b.island.width);
+  const bottom = Math.max(a.island.y + a.island.height, b.island.y + b.island.height);
+  return {
+    window: b.window,
+    island: { x: left, y: top, width: right - left, height: bottom - top },
+  };
+}
+
+/**
+ * 统计"岛矩形之外"的偏红像素（窗口留白区）。
+ * 新架构下窗口是固定包围盒，岛只占其中一部分：光晕一旦外溢就会落在这些留白里。
+ */
+function countReddishOutsideIsland(
+  image: Electron.NativeImage,
+  geometry: IslandGeometry,
+  win: BrowserWindow,
+  margin: number,
+): number {
+  const bitmap = image.toBitmap();
+  const size = image.getSize();
+  const ratio = size.width / Math.max(1, geometry.window.width);
+  void win;
+  // margin 是**向外**的容差：岛的描边（1px 居中）与抗锯齿边都算"岛内"，
+  // 只有明显落在岛之外（> margin）的红色才算外溢。此前把它当"向内缩"，
+  // 结果把岛自身的红色描边统计成了"岛外偏红"。
+  const left = (geometry.island.x - geometry.window.x - margin) * ratio;
+  const top = (geometry.island.y - geometry.window.y - margin) * ratio;
+  const right = (geometry.island.x - geometry.window.x + geometry.island.width + margin) * ratio;
+  const bottom = (geometry.island.y - geometry.window.y + geometry.island.height + margin) * ratio;
+
+  let count = 0;
+  for (let y = 0; y < size.height; y += 1) {
+    for (let x = 0; x < size.width; x += 1) {
+      if (x >= left && x <= right && y >= top && y <= bottom) continue;
+      const index = (y * size.width + x) * 4;
+      const blue = bitmap[index] ?? 0;
+      const green = bitmap[index + 1] ?? 0;
+      const red = bitmap[index + 2] ?? 0;
+      const alpha = bitmap[index + 3] ?? 0;
+      if (alpha > 40 && red > green + 12 && red > blue + 12) count += 1;
+    }
+  }
+  return count;
+}
+
+/** 读取岛的几何（截图用；与 runIslandChecks 内的同名逻辑保持一致的语义） */
+async function readIslandGeometryFrom(win: BrowserWindow): Promise<IslandGeometry | null> {
+  const bounds = island.getWindowBounds();
+  const rect = await win.webContents
+    .executeJavaScript(
+      `(() => {
+         const card = document.querySelector('.island-card');
+         if (!card) return null;
+         const r = card.getBoundingClientRect();
+         return { left: r.left, top: r.top, width: r.width, height: r.height };
+       })()`,
+    )
+    .catch(() => null);
+  if (!rect) return null;
+  return {
+    window: bounds,
+    island: {
+      x: bounds.x + rect.left,
+      y: bounds.y + rect.top,
+      width: rect.width,
+      height: rect.height,
+    },
+  };
+}
+
 /** 打印灵动岛渲染进程的真实 DOM 结构（排查空白窗口） */
 async function dumpIslandDom(_label: string): Promise<string> {
  const win = island.getWindow();
@@ -212,6 +436,48 @@ async function runIslandChecks(
    `mode=${island.getState().mode} visible=${islandWindow?.isVisible() ?? true}`,
  );

+  /**
+   * 读取"岛"的几何：窗口矩形（固定包围盒）+ 岛在屏幕上的真实矩形（渲染层里的 .island-card）。
+   * 新架构下**窗口恒定、岛在窗口内形变**，因此所有尺寸类断言都必须量 `island` 而不是窗口。
+   */
+  const readIslandGeometry = async (): Promise<IslandGeometry | null> => {
+    const win = island.getWindowBounds();
+    const rect = await islandWindow?.webContents
+      .executeJavaScript(
+        `(() => {
+           const card = document.querySelector('.island-card');
+           if (!card) return null;
+           const r = card.getBoundingClientRect();
+           const raw = getComputedStyle(card).getPropertyValue('--card-r').trim();
+           const path = card.querySelector('.shape path');
+           const box = path && typeof path.getBBox === 'function' ? path.getBBox() : null;
+           return {
+             left: r.left,
+             top: r.top,
+             width: r.width,
+             height: r.height,
+             radius: parseFloat(raw) || 0,
+             pathWidth: box ? box.width : 0,
+             pathHeight: box ? box.height : 0,
+           };
+         })()`,
+      )
+      .catch(() => null);
+    if (!rect) return null;
+    return {
+      window: win,
+      island: {
+        x: win.x + rect.left,
+        y: win.y + rect.top,
+        width: rect.width,
+        height: rect.height,
+        radius: rect.radius,
+        pathWidth: rect.pathWidth,
+        pathHeight: rect.pathHeight,
+      },
+    };
+  };
+
  // 2) 下课：自动弹出暂存通知的详情
  island.setClassState({ inClass: false, currentPeriodEnd: null, week: 1 });
  await sleep(900);
@@ -228,8 +494,12 @@ async function runIslandChecks(
  await sleep(300);
  const sampledWidths: number[] = [];
  const sampler = setInterval(() => {
-    const bounds = islandWindow?.getBounds();
-    if (bounds) sampledWidths.push(bounds.width);
+    // 新架构：量"岛"在屏幕上的真实宽度（窗口是固定包围盒，形变发生在窗口内）
+    void readIslandGeometry()
+      .then((geometry) => {
+        if (geometry) sampledWidths.push(Math.round(geometry.island.width));
+      })
+      .catch(() => undefined);
  }, 16);
  island.pushNotification(makeNotification('smoke-urgent-in-class', 'URGENT', '上课期间的紧急通知'), {
    inClass: true,
@@ -245,13 +515,14 @@ async function runIslandChecks(
    `mode=${urgentState.mode} active=${urgentState.active?.id ?? '-'} reason=${urgentState.reason ?? '-'}`,
  );

-  const urgentBounds = islandWindow?.getBounds();
+  const urgentGeometry = await readIslandGeometry();
+  const urgentBounds = urgentGeometry?.island ?? null;
  const rampWidths = [
    ...new Set(sampledWidths.filter((width) => width > 0 && width < ISLAND_URGENT_SIZE.width)),
  ];
  record(
-    '紧急通知带展开动画（窗口从胶囊尺寸缓动到紧急尺寸）',
-    rampWidths.length >= 3 && urgentBounds?.width === ISLAND_URGENT_SIZE.width,
+    '紧急通知带展开动画（岛从胶囊尺寸弹簧展开到紧急尺寸）',
+    rampWidths.length >= 3 && Math.abs((urgentBounds?.width ?? 0) - ISLAND_URGENT_SIZE.width) <= 2,
    `采样=${sampledWidths.length} 中间尺寸=${rampWidths.length} 最终=${urgentBounds?.width ?? '-'}x${urgentBounds?.height ?? '-'}`,
  );
  await captureIsland('island-3-urgent', ISLAND_URGENT_SIZE);
@@ -275,16 +546,17 @@ async function runIslandChecks(
    inClass: false,
  });
  await sleep(60);
-  const immediateBounds = islandWindow?.getBounds();
+  const immediateGeometry = await readIslandGeometry();
+  const initialIsland = immediateGeometry?.island ?? null;
  await sleep(640);
  const pillState = island.getState();
  record(
    '普通通知直接显示胶囊（无"上岛"入场动画）',
    hiddenBeforePush &&
      pillState.mode === 'pill' &&
-      immediateBounds?.width === ISLAND_SIZES.pill.width &&
-      immediateBounds?.height === ISLAND_SIZES.pill.height,
-    `推送前隐藏=${hiddenBeforePush} 60ms 内窗口=${immediateBounds?.width ?? '-'}x${immediateBounds?.height ?? '-'}` +
+      Math.abs((initialIsland?.width ?? 0) - ISLAND_SIZES.pill.width) <= 2 &&
+      Math.abs((initialIsland?.height ?? 0) - ISLAND_SIZES.pill.height) <= 2,
+    `推送前隐藏=${hiddenBeforePush} 60ms 内岛=${initialIsland?.width?.toFixed(1) ?? '-'}x${initialIsland?.height?.toFixed(1) ?? '-'}` +
      `（期望 ${ISLAND_SIZES.pill.width}x${ISLAND_SIZES.pill.height}）mode=${pillState.mode}`,
  );
  await captureIsland('island-4-pill', ISLAND_SIZES.pill);
@@ -357,23 +629,28 @@ async function runIslandChecks(
    `chevronClicked=${chevronClicked} mode=${afterChevron.mode}`,
  );

-  // 4.4) 收回过程中卡片不能出现"被拉扁的方框"：
-  //      采样卡片尺寸，必须始终是固定的胶囊/详情尺寸之一，绝不出现中间值。
+  // 4.4) 新架构（照搬 WinIsland）：窗口是固定包围盒，开合过程中**窗口一帧都不动**，
+  //      岛在窗口内做弹簧形变。这里逐帧采样"窗口 + 岛"：窗口必须完全恒定，岛形变必须连续。
  island.handleAction({ action: 'expand' });
  await sleep(700);
-  const shrinkSamples: string[] = [];
+  const shrinkSamples: {
+    window: string;
+    island: string;
+    radius: number;
+    pathWidth: number;
+    pathHeight: number;
+  }[] = [];
  const shrinkSampler = setInterval(() => {
-    void islandWindow?.webContents
-      .executeJavaScript(
-        `(() => {
-           const node = document.querySelector('.island-card');
-           if (!node) return '';
-           const rect = node.getBoundingClientRect();
-           return Math.round(rect.width) + 'x' + Math.round(rect.height);
-         })()`,
-      )
-      .then((value: string) => {
-        if (value) shrinkSamples.push(value);
+    void readIslandGeometry()
+      .then((geometry) => {
+        if (!geometry) return;
+        shrinkSamples.push({
+          window: `${geometry.window.width}x${geometry.window.height}@${geometry.window.x},${geometry.window.y}`,
+          island: `${Math.round(geometry.island.width)}x${Math.round(geometry.island.height)}`,
+          radius: Number(geometry.island.radius ?? 0),
+          pathWidth: Number(geometry.island.pathWidth ?? 0),
+          pathHeight: Number(geometry.island.pathHeight ?? 0),
+        });
      })
      .catch(() => undefined);
  }, 40);
@@ -381,20 +658,24 @@ async function runIslandChecks(
  await sleep(700);
  clearInterval(shrinkSampler);
  await sleep(120);
-  // 允许的卡片尺寸由当前外观与各形态窗口尺寸推导（卡片 = 窗口 - 2*5px 内边距）
-  const cardLabel = (size: { width: number; height: number }): string =>
-    `${size.width - 10}x${size.height - 10}`;
-  const allowedSizes = new Set([
-    cardLabel(ISLAND_SIZES.pill),
-    cardLabel(ISLAND_SIZES.expanded),
-    cardLabel(ISLAND_URGENT_SIZE),
-    cardLabel(ISLAND_CALL_SIZE),
-  ]);
-  const stretched = [...new Set(shrinkSamples)].filter((size) => !allowedSizes.has(size));
+  const windowSignatures = [...new Set(shrinkSamples.map((item) => item.window))];
+  const islandSizes = shrinkSamples.map((item) => item.island);
+  const islandWidths = shrinkSamples.map((item) => Number(item.island.split('x')[0]));
+  const islandMonotonic = islandWidths.every(
+    (width, index) => index === 0 || width <= (islandWidths[index - 1] ?? width) + 1,
+  );
+  // 画出来的形状必须与卡片框一致：SVG 路径 bbox ≈ 卡片宽高（±2px）。
+  // 这能一次性抓住"viewBox/preserveAspectRatio 错位导致形状被缩放或残留角"这类问题。
+  const pathFits = shrinkSamples.every(
+    (item) =>
+      Math.abs(item.pathWidth - Number(item.island.split('x')[0])) <= 2 &&
+      Math.abs(item.pathHeight - Number(item.island.split('x')[1])) <= 2,
+  );
  record(
-    '收回动画不出现被拉伸的"方框"（卡片保持固定尺寸）',
-    shrinkSamples.length >= 3 && stretched.length === 0,
-    `采样=${shrinkSamples.length} 尺寸集合=[${[...new Set(shrinkSamples)].join(',')}] 异常尺寸=[${stretched.join(',')}]`,
+    '开合过程中窗口全程恒定、岛在窗口内连续形变（照搬 WinIsland 架构）',
+    shrinkSamples.length >= 3 && windowSignatures.length === 1 && islandMonotonic && pathFits,
+    `采样=${shrinkSamples.length} 窗口签名=[${windowSignatures.join(' ')}]（要求只有 1 种） ` +
+      `岛尺寸序列=[${islandSizes.slice(0, 8).join('→')}${islandSizes.length > 8 ? '…' : ''}] 单调收缩=${islandMonotonic} 形状与卡片框一致=${pathFits}`,
  );

  // 4.5) 点击屏幕其他位置（窗口失焦）→ 自动回缩为胶囊
@@ -508,7 +789,7 @@ async function runIslandChecks(
      text:
        `${shot.name} ${shot.width}x${shot.height}(期望 ${shot.expected.width}x${shot.expected.height}, ` +
        `比例偏差 ${ratioDelta.toFixed(3)}) 不透明=${shot.opaque} 颜色=${shot.uniqueColors} ` +
-        `偏红=${shot.reddish} 外圈偏红=${shot.edgeReddish}`,
+        `偏红=${shot.reddish} 岛外偏红=${shot.outsideReddish ?? 0}`,
    };
  });

@@ -516,7 +797,7 @@ async function runIslandChecks(
  const wrongRatio = shotDetails.filter((shot) => shot.ratioDelta > 0.05);
  const urgentShot = shotDetails.find((shot) => shot.name.includes('urgent'));
  const urgentReddish = urgentShot?.reddish ?? 0;
-  const edgeReddish = urgentShot?.edgeReddish ?? 0;
+  const outsideReddish = urgentShot?.outsideReddish ?? 0;
  const pillShot = shotDetails.find((shot) => shot.name.includes('pill'));
  const sizesOrdered = Boolean(
    pillShot &&
@@ -538,11 +819,11 @@ async function runIslandChecks(
      ` 形态尺寸递增=${sizesOrdered}`,
  );

-  // 7) 光晕只在卡片内部：截图最外圈（窗口留白）不允许出现红色外溢像素
+  // 7) 光晕只在岛内部：固定的窗口包围盒里，岛之外的留白区不允许出现红色外溢像素
  record(
-    '紧急红晕不外溢（窗口边缘无红色光晕像素）',
-    urgentShot !== undefined && edgeReddish === 0 && urgentReddish > 200,
-    `紧急态偏红=${urgentReddish} 最外圈偏红=${edgeReddish}（要求 0）`,
+    '紧急光晕不外溢（岛之外的窗口留白区无红色像素）',
+    urgentShot !== undefined && outsideReddish === 0 && urgentReddish > 200,
+    `紧急态岛内偏红=${urgentReddish} 岛外留白偏红=${outsideReddish}（要求 0）`,
  );

  // 8) 个性化外观：高度/宽度/圆角/字号/透明度/动画速度实时生效，且不破坏布局
@@ -554,7 +835,7 @@ async function runIslandChecks(
    inClass: false,
  });
  await sleep(600);
-  const pillBounds = islandWindow?.getBounds();
+  const pillBounds = (await readIslandGeometry())?.island ?? null;
  const cssVars = await islandWindow?.webContents.executeJavaScript(
    `(() => {
       const style = getComputedStyle(document.documentElement);
@@ -610,16 +891,14 @@ async function runIslandChecks(
  await sleep(700);
  const jitterSamples: { win: number; cardWidth: number; cardTop: number }[] = [];
  const jitterSampler = setInterval(() => {
-    const winWidth = islandWindow?.getBounds().width ?? 0;
-    void islandWindow?.webContents
-      .executeJavaScript(
-        `(() => {
-           const card = document.querySelector('.island-card');
-           return card ? { width: card.offsetWidth, top: card.offsetTop } : null;
-         })()`,
-      )
-      .then((value: { width: number; top: number } | null) => {
-        if (value) jitterSamples.push({ win: winWidth, cardWidth: value.width, cardTop: value.top });
+    void readIslandGeometry()
+      .then((geometry) => {
+        if (!geometry) return;
+        jitterSamples.push({
+          win: geometry.window.width,
+          cardWidth: Math.round(geometry.island.width),
+          cardTop: Math.round(geometry.island.y),
+        });
      })
      .catch(() => undefined);
  }, 30);
@@ -628,19 +907,18 @@ async function runIslandChecks(
  clearInterval(jitterSampler);

  const winSequence = jitterSamples.map((item) => item.win);
-  const monotonicShrink = winSequence.every(
-    (width, index) => index === 0 || width <= (winSequence[index - 1] ?? width) + 1,
+  const windowConstant = new Set(winSequence).size <= 1;
+  const islandSequence = jitterSamples.map((item) => item.cardWidth);
+  const monotonicShrink = islandSequence.every(
+    (width, index) => index === 0 || width <= (islandSequence[index - 1] ?? width) + 1,
  );
  const cardTops = jitterSamples.map((item) => item.cardTop);
  const topSpread = cardTops.length > 0 ? Math.max(...cardTops) - Math.min(...cardTops) : 99;
-  const cardWidths = [...new Set(jitterSamples.map((item) => item.cardWidth))];
-  const expectedWidths = [ISLAND_SIZES.expanded.width - 10, ISLAND_SIZES.pill.width - 10];
-  const widthOk = cardWidths.every((width) => expectedWidths.includes(width));
  record(
-    '收回过程不抖动（窗口宽度单调收缩 + 卡片布局尺寸不拉伸）',
-    jitterSamples.length >= 4 && monotonicShrink && topSpread <= 1 && widthOk && cardWidths.length <= 2,
-    `采样=${jitterSamples.length} 窗口序列=[${winSequence.join(',')}] 单调收缩=${monotonicShrink} ` +
-      `卡片上边缘波动=${topSpread}px 卡片宽度集合=[${cardWidths.join(',')}]（期望 ${expectedWidths.join('/')}）`,
+    '收回过程不抖动（窗口恒定 + 岛宽度单调收缩 + 岛顶部不动）',
+    jitterSamples.length >= 4 && windowConstant && monotonicShrink && topSpread <= 1,
+    `采样=${jitterSamples.length} 窗口宽度集合=[${[...new Set(winSequence)].join(',')}]（要求 1 个） ` +
+      `岛宽度序列=[${islandSequence.join(',')}] 单调收缩=${monotonicShrink} 岛上边缘波动=${topSpread}px`,
  );
  // 10) 连续快速开合：最终状态与尺寸必须稳定
  for (let index = 0; index < 5; index += 1) {
@@ -651,14 +929,14 @@ async function runIslandChecks(
  }
  await sleep(600);
  const rapidState = island.getState();
-  const rapidBounds = islandWindow?.getBounds();
+  const rapidBounds = (await readIslandGeometry())?.island ?? null;
  const currentAppearance = island.getAppearance();
  record(
    '连续快速展开/收起后状态与尺寸稳定',
    rapidState.mode === 'pill' &&
-      rapidBounds?.width === currentAppearance.width &&
-      rapidBounds?.height === currentAppearance.height,
-    `mode=${rapidState.mode} 窗口=${rapidBounds?.width ?? '-'}x${rapidBounds?.height ?? '-'}` +
+      Math.abs((rapidBounds?.width ?? 0) - currentAppearance.width) <= 2 &&
+      Math.abs((rapidBounds?.height ?? 0) - currentAppearance.height) <= 2,
+    `mode=${rapidState.mode} 岛=${rapidBounds?.width?.toFixed(1) ?? '-'}x${rapidBounds?.height?.toFixed(1) ?? '-'}` +
      `（期望 ${currentAppearance.width}x${currentAppearance.height}）`,
  );

@@ -712,8 +990,8 @@ async function runIslandChecks(
  island.pushNotification(makeNotification('smoke-motion', 'NORMAL', '开合不震动校验'), { inClass: false });
  await sleep(350);

-  const expandedCard = { width: ISLAND_SIZES.expanded.width - 10, height: ISLAND_SIZES.expanded.height - 10 };
-  const pillCard = { width: ISLAND_SIZES.pill.width - 10, height: ISLAND_SIZES.pill.height - 10 };
+  const expandedCard = { width: ISLAND_SIZES.expanded.width, height: ISLAND_SIZES.expanded.height };
+  const pillCard = { width: ISLAND_SIZES.pill.width, height: ISLAND_SIZES.pill.height };

  await runMotionProbe('expand');
  const expandSamples = [...motionSamples];
@@ -729,24 +1007,24 @@ async function runIslandChecks(
  const maxCardH = expandSamples.length ? Math.max(...expandSamples.map((item) => item.cardH)) : 0;
  const maxWinW = expandSamples.length ? Math.max(...expandSamples.map((item) => item.winW)) : 0;
  const maxWinH = expandSamples.length ? Math.max(...expandSamples.map((item) => item.winH)) : 0;
+  const minWinW = expandSamples.length ? Math.min(...expandSamples.map((item) => item.winW)) : 0;
+  const minWinH = expandSamples.length ? Math.min(...expandSamples.map((item) => item.winH)) : 0;
+  const windowFrozen = maxWinW === minWinW && maxWinH === minWinH;
  const expandMonotonic = expandSamples.every(
    (item, index) => index === 0 || item.winW >= (expandSamples[index - 1]?.winW ?? 0) - 1,
  );
-  const expandNoOvershoot =
-    maxCardW <= expandedCard.width + 0.5 &&
-    maxCardH <= expandedCard.height + 0.5 &&
-    maxWinW <= ISLAND_SIZES.expanded.width + 1 &&
-    maxWinH <= ISLAND_SIZES.expanded.height + 1;
+  const expandNoOvershoot = maxCardW <= expandedCard.width + 0.5 && maxCardH <= expandedCard.height + 0.5;
  record(
-    '展开过程不震动（锚点不动 + 尺寸不过冲）',
+    '展开过程不震动（窗口冻结 + 岛锚点不动 + 尺寸不过冲）',
    expandSamples.length >= 5 &&
+      windowFrozen &&
      cxSpread <= 0.5 &&
      topSpreadExpand <= 0.5 &&
      expandMonotonic &&
      expandNoOvershoot,
-    `采样=${expandSamples.length} 卡片中心波动=${cxSpread.toFixed(2)}px 上边缘波动=${topSpreadExpand.toFixed(2)}px ` +
-      `最大卡片=${maxCardW.toFixed(1)}x${maxCardH.toFixed(1)}（目标 ${expandedCard.width}x${expandedCard.height}）` +
-      ` 最大窗口=${maxWinW}x${maxWinH}（目标 ${ISLAND_SIZES.expanded.width}x${ISLAND_SIZES.expanded.height}） 单调=${expandMonotonic}`,
+    `采样=${expandSamples.length} 窗口=${maxWinW}x${maxWinH}（全程冻结=${windowFrozen}） ` +
+      `岛中心波动=${cxSpread.toFixed(2)}px 岛上边缘波动=${topSpreadExpand.toFixed(2)}px ` +
+      `最大岛=${maxCardW.toFixed(1)}x${maxCardH.toFixed(1)}（目标 ${expandedCard.width}x${expandedCard.height}） 单调=${expandMonotonic}`,
  );

  await runMotionProbe('collapse');
@@ -759,22 +1037,26 @@ async function runIslandChecks(
    ? Math.max(...collapseSamples.map((item) => item.cardTop)) -
      Math.min(...collapseSamples.map((item) => item.cardTop))
    : 99;
-  const minWinW = collapseSamples.length ? Math.min(...collapseSamples.map((item) => item.winW)) : 0;
  const minCardW = collapseSamples.length ? Math.min(...collapseSamples.map((item) => item.cardW)) : 0;
+  const collapseWindowFrozen =
+    new Set(collapseSamples.map((item) => item.winW)).size <= 1 &&
+    new Set(collapseSamples.map((item) => item.winH)).size <= 1;
  const collapseMonotonic = collapseSamples.every(
    (item, index) =>
-      index === 0 || item.winW <= (collapseSamples[index - 1]?.winW ?? Number.MAX_SAFE_INTEGER) + 1,
+      index === 0 || item.cardW <= (collapseSamples[index - 1]?.cardW ?? Number.MAX_SAFE_INTEGER) + 1,
  );
-  const collapseNoOvershoot = minCardW >= pillCard.width - 0.5 && minWinW >= ISLAND_SIZES.pill.width - 1;
+  const collapseNoOvershoot = minCardW >= pillCard.width - 1;
  record(
-    '收回过程不震动（锚点不动 + 尺寸不过冲）',
+    '收回过程不震动（窗口冻结 + 岛锚点不动 + 尺寸不过冲）',
    collapseSamples.length >= 5 &&
+      collapseWindowFrozen &&
      cxSpreadCollapse <= 0.5 &&
      topSpreadCollapse <= 0.5 &&
      collapseMonotonic &&
      collapseNoOvershoot,
-    `采样=${collapseSamples.length} 卡片中心波动=${cxSpreadCollapse.toFixed(2)}px 上边缘波动=${topSpreadCollapse.toFixed(2)}px ` +
-      `最小卡片宽=${minCardW.toFixed(1)}（目标 ${pillCard.width}） 最小窗口宽=${minWinW}（目标 ${ISLAND_SIZES.pill.width}） 单调=${collapseMonotonic}`,
+    `采样=${collapseSamples.length} 窗口全程冻结=${collapseWindowFrozen} ` +
+      `岛中心波动=${cxSpreadCollapse.toFixed(2)}px 岛上边缘波动=${topSpreadCollapse.toFixed(2)}px ` +
+      `最小岛宽=${minCardW.toFixed(1)}（目标 ${pillCard.width}） 单调收缩=${collapseMonotonic}`,
  );

  // 收尾：保持"胶囊可见"状态——后续个性化用例（透明度 / 位置）需要窗口可见才会立即生效
@@ -908,6 +1190,41 @@ async function runIslandChecks(
      `毛玻璃 fill=${glassStyle.fill} 材质=${glassStyle.material}；` +
      `主题色 fill=${tintedStyle.fill} 材质=${tintedStyle.material}`,
  );
+  // 10.7b) 固定大包围盒窗口的鼠标穿透（照搬 WinIsland set_cursor_hittest）：
+  //        默认整块窗口穿透，指针进入岛体才接收鼠标 —— 否则会吞掉桌面点击。
+  await islandWindow?.webContents
+    .executeJavaScript(
+      `(() => {
+         const card = document.querySelector('.island-card');
+         const r = card.getBoundingClientRect();
+         window.dispatchEvent(
+           new MouseEvent('mousemove', {
+             clientX: r.left + r.width / 2,
+             clientY: r.top + r.height / 2,
+             bubbles: true,
+           }),
+         );
+         return true;
+       })()`,
+    )
+    .catch(() => undefined);
+  await sleep(180);
+  const interactiveInside = island.getInteractive();
+  await islandWindow?.webContents
+    .executeJavaScript(
+      `(() => {
+         window.dispatchEvent(new MouseEvent('mousemove', { clientX: 2, clientY: 2, bubbles: true }));
+         return true;
+       })()`,
+    )
+    .catch(() => undefined);
+  await sleep(180);
+  const interactiveOutside = island.getInteractive();
+  record(
+    '岛外鼠标穿透（固定大窗口不吞桌面点击）',
+    interactiveInside === true && interactiveOutside === false,
+    `指针在岛内 interactive=${interactiveInside}，指针在岛外 interactive=${interactiveOutside}（要求 true / false）`,
+  );
  island.setAppearance({ ...appearanceBefore, style: 'black' });
  await sleep(200);

@@ -916,15 +1233,15 @@ async function runIslandChecks(
  island.setAppearance({ ...appearanceBefore, idleSliver: true });
  await drainIsland();
  await sleep(420);
-  const sliverBounds = islandWindow?.getBounds();
+  const sliverBounds = (await readIslandGeometry())?.island ?? null;
  island.pushNotification(makeNotification('smoke-sliver', 'NORMAL', '空闲细缝校验'), { inClass: false });
-  await sleep(500);
-  const afterSliverNotification = islandWindow?.getBounds();
+  await sleep(700);
+  const afterSliverNotification = (await readIslandGeometry())?.island ?? null;
  record(
    '空闲细缝：空闲缩为细缝、来消息自动展开（WinIsland hidden_width）',
-    sliverBounds?.width === sliver.width &&
-      sliverBounds?.height === sliver.height &&
-      afterSliverNotification?.width === island.getAppearance().width,
+    Math.abs((sliverBounds?.width ?? 0) - sliver.width) <= 1 &&
+      Math.abs((sliverBounds?.height ?? 0) - sliver.height) <= 1 &&
+      Math.abs((afterSliverNotification?.width ?? 0) - island.getAppearance().width) <= 2,
    `细缝=${sliverBounds?.width ?? '-'}x${sliverBounds?.height ?? '-'}（期望 ${sliver.width}x${sliver.height}）` +
      ` 来消息后=${afterSliverNotification?.width ?? '-'}x${afterSliverNotification?.height ?? '-'} ${islandStateSummary()}`,
  );
@@ -993,7 +1310,7 @@ async function runIslandChecks(
  for (const item of positionCases) {
    island.setAppearance({ ...appearanceBefore, position: item.position });
    await sleep(450);
-    const bounds = islandWindow?.getBounds();
+    const bounds = (await readIslandGeometry())?.island ?? null;
    const matched = Boolean(bounds) && item.verify(bounds as Electron.Rectangle);
    if (!matched) positionOk = false;
    positionDetails.push(
@@ -1024,7 +1341,7 @@ async function runIslandChecks(
  await sleep(300);
  island.handleAction({ action: 'expand' });
  await sleep(60);
-  const instantBounds = islandWindow?.getBounds();
+  const instantBounds = (await readIslandGeometry())?.island ?? null;
  const expectedExpanded = ISLAND_SIZES.expanded;
  const animationsOff = island.getAppearance().animations === false;
  record(
@@ -1038,14 +1355,15 @@ async function runIslandChecks(
  const measureCollapse = async (speed: number): Promise<number> => {
    island.setAppearance({ ...appearanceBefore, animations: true, speed });
    island.handleAction({ action: 'expand' });
-    await sleep(500);
+    await sleep(900);
    const started = Date.now();
    island.handleAction({ action: 'collapse' });
    const target = island.getAppearance().width;
-    const deadline = started + 2500;
+    const deadline = started + 3000;
    while (Date.now() < deadline) {
-      const width = islandWindow?.getBounds().width ?? 0;
-      if (Math.abs(width - target) <= 1) break;
+      const geometry = await readIslandGeometry();
+      const width = geometry?.island.width ?? 0;
+      if (Math.abs(width - target) <= 1.5) break;
      await sleep(16);
    }
    return Date.now() - started;
@@ -12,6 +12,8 @@ export interface IslandBridge {
  /** 订阅个性化外观（设置页改动后实时生效） */
  onAppearance(handler: (appearance: IslandAppearance) => void): void;
  getAppearance(): Promise<IslandAppearance>;
+  /** 命中测试结果：指针是否在岛体上（决定窗口是否接收鼠标） */
+  setInteractive(interactive: boolean): void;
 }

 const bridge: IslandBridge = {
@@ -26,6 +28,9 @@ const bridge: IslandBridge = {
    ipcRenderer.on('island:appearance', (_event, appearance: IslandAppearance) => handler(appearance));
  },
  getAppearance: () => ipcRenderer.invoke('island:get-appearance'),
+  setInteractive: (interactive) => {
+    ipcRenderer.send('island:set-interactive', interactive);
+  },
 };

 contextBridge.exposeInMainWorld('island', bridge);
@@ -73,6 +73,8 @@ export interface IslandRendererBridge {
  getAppearance(): Promise<IslandAppearance>;
  sendAction(action: 'expand' | 'collapse' | 'dismiss' | 'mark-read' | 'open-app', id?: string): void;
  getState(): Promise<IslandState>;
+  /** 命中测试结果：指针是否在岛体上（决定固定大窗口是否接收鼠标） */
+  setInteractive(interactive: boolean): void;
 }

 declare global {