diff --git a/apps/ai-game-creator-shell/src/features/resource-canvas/ResourceCanvasAssetGenerationTasksPanelView.tsx b/apps/ai-game-creator-shell/src/features/resource-canvas/ResourceCanvasAssetGenerationTasksPanelView.tsx
index 8915d5663..494fa43c8 100644
--- a/apps/ai-game-creator-shell/src/features/resource-canvas/ResourceCanvasAssetGenerationTasksPanelView.tsx
+++ b/apps/ai-game-creator-shell/src/features/resource-canvas/ResourceCanvasAssetGenerationTasksPanelView.tsx
@@ -1,3 +1,5 @@
+import './resourceCanvasAssetGenerationTasksSidebar.css';
+
 import { ChevronLeft, ChevronRight, ListChecks, X } from 'lucide-react';
 import { useEffect, useMemo, useState } from 'react';
 
@@ -7,6 +9,7 @@ import {
   type ResourceCanvasAssetGenerationTask,
   resourceCanvasAssetGenerationTaskElapsedMillis,
   resourceCanvasAssetGenerationTaskIsTerminal,
+  resourceCanvasAssetGenerationTaskTone,
   sortResourceCanvasAssetGenerationTasks,
 } from './resourceCanvasAssetGenerationTaskModel';
 
@@ -31,33 +34,42 @@ function taskRow(
   return (
     <li
       key={task.taskId}
-      className="rounded-xl px-2 py-2"
-      style={{ background: 'var(--platform-panel-fill)' }}
+      className="game-resource-generation-task-card"
+      data-task-status={task.status}
     >
-      <div className="flex items-start justify-between gap-2">
-        <strong className="text-xs font-bold">{task.assetName}</strong>
-        <span className="text-[11px] opacity-70">{task.actionLabel}</span>
+      <div className="game-resource-generation-task-card-title-row">
+        <strong className="game-resource-generation-task-card-name">
+          {task.assetName}
+        </strong>
+        <span className="game-resource-generation-task-card-action">
+          {task.actionLabel}
+        </span>
       </div>
-      <div className="mt-1 flex flex-wrap items-center gap-x-2 gap-y-1 text-[11px]">
-        <span className="rounded-full border border-black/10 px-2 py-0.5">
+      <div className="game-resource-generation-task-card-meta">
+        <span
+          className="game-resource-generation-task-badge"
+          data-tone={resourceCanvasAssetGenerationTaskTone(task.status)}
+        >
           {RESOURCE_CANVAS_ASSET_GENERATION_STATUS_LABELS[task.status]}
         </span>
-        <span>{task.phaseDetail}</span>
-        <span className="opacity-70">
+        <span className="game-resource-generation-task-card-phase">
+          {task.phaseDetail}
+        </span>
+        <span className="game-resource-generation-task-card-elapsed">
           {`已耗时 ${resourceCanvasAssetGenerationElapsedLabel(
             resourceCanvasAssetGenerationTaskElapsedMillis(task, nowMillis),
           )}`}
         </span>
       </div>
       {task.error ? (
-        <p className="mt-1 text-[11px]" role="alert">
+        <p className="game-resource-generation-task-card-error" role="alert">
           {task.error}
         </p>
       ) : null}
       {focusable ? (
         <button
           type="button"
-          className="mt-1 text-[11px] underline"
+          className="game-resource-generation-task-locate"
           aria-label={`定位素材 ${task.assetName}`}
           onClick={() => onFocusTask(task)}
         >
@@ -80,8 +92,8 @@ function taskRow(
  * 侧栏挂在**左侧、标题栏之下、工具栏之上**，并且是**覆盖式**而不是把画布挤窄（画布的视口数学与
  * 资源卡排布都不被 reflow 动到，收起即完全让出画布）。宽度 300px 落在 280–340px 区间内。
  *
- * 两个分栏（「排队/生成中」与「已完成」）只做客户端分组，数据源仍是同一份任务列表；「已完成」
- * 条数封顶且列表自身滚动，侧栏高度有界。
+ * 分栏、条数、封顶、折叠语义都在这里；颜色与排版在同目录的 CSS 文件里，取值全部走
+ * `--platform-*` 设计 token。
  */
 export function ResourceCanvasAssetGenerationTasksPanelView({
   tasks,
@@ -122,23 +134,19 @@ export function ResourceCanvasAssetGenerationTasksPanelView({
     return (
       <button
         type="button"
-        className="platform-theme platform-theme--light fixed top-1/2 left-0 z-40 flex -translate-y-1/2 flex-col items-center gap-1 rounded-r-xl border border-l-0 border-black/10 px-1.5 py-3 shadow-lg"
-        style={{
-          background: 'var(--platform-subpanel-fill)',
-          color: 'var(--platform-text-strong)',
-        }}
+        className="platform-theme platform-theme--light game-resource-generation-tasks-handle"
         aria-label="展开生成任务"
         aria-expanded={false}
         data-resource-generation-task-count={inFlightCount}
         onClick={onToggleOpen}
       >
         <ListChecks size={15} aria-hidden="true" />
-        <span className="text-[11px] font-bold [writing-mode:vertical-rl]">
+        <span className="game-resource-generation-tasks-handle-label">
           生成任务
         </span>
         {inFlightCount > 0 ? (
           <span
-            className="rounded-full border border-black/10 px-1 text-[11px] font-black"
+            className="game-resource-generation-tasks-handle-badge"
             aria-label={`在途生成任务 ${inFlightCount}`}
           >
             {inFlightCount}
@@ -151,23 +159,25 @@ export function ResourceCanvasAssetGenerationTasksPanelView({
 
   return (
     <aside
-      className="platform-theme platform-theme--light fixed top-16 bottom-24 left-3 z-40 flex w-[300px] max-w-[80vw] flex-col rounded-2xl border border-black/10 shadow-lg"
-      style={{
-        background: 'var(--platform-subpanel-fill)',
-        color: 'var(--platform-text-strong)',
-      }}
+      className="platform-theme platform-theme--light game-resource-generation-tasks-sidebar"
       role="region"
       aria-label="生成任务"
       data-resource-generation-task-count={inFlightCount}
     >
-      <header className="flex items-center justify-between gap-2 border-b border-black/10 px-3 py-2">
-        <h2 className="flex items-center gap-1 text-sm font-black">
+      <header className="game-resource-generation-tasks-sidebar-header">
+        <h2 className="game-resource-generation-tasks-sidebar-title">
           <ListChecks size={15} aria-hidden="true" />
           生成任务
+          <span
+            className="game-resource-generation-tasks-sidebar-count"
+            aria-label={`在途生成任务 ${inFlightCount}`}
+          >
+            {inFlightCount}
+          </span>
         </h2>
         <button
           type="button"
-          className="grid h-7 w-7 place-items-center rounded-full"
+          className="game-resource-generation-tasks-sidebar-icon-button"
           aria-label="收起生成任务"
           onClick={onToggleOpen}
         >
@@ -175,44 +185,58 @@ export function ResourceCanvasAssetGenerationTasksPanelView({
         </button>
       </header>
       <div
-        className="min-h-0 flex-1 overflow-y-auto px-3 py-2"
+        className="game-resource-generation-tasks-scroll"
         data-resource-generation-task-scroll=""
       >
         {ordered.length === 0 ? (
-          <p className="text-xs" role="status">
+          <p className="game-resource-generation-tasks-empty" role="status">
             还没有生成任务
           </p>
         ) : (
           <>
-            <section aria-label="排队与生成中">
-              <h3 className="flex items-center justify-between text-xs font-bold">
+            <section
+              className="game-resource-generation-tasks-section"
+              aria-label="排队与生成中"
+            >
+              <h3 className="game-resource-generation-tasks-section-title">
                 <span>排队/生成中</span>
-                <span>{active.length}</span>
+                <span className="game-resource-generation-tasks-section-title-count">
+                  {active.length}
+                </span>
               </h3>
               {active.length === 0 ? (
-                <p className="mt-1 text-[11px] opacity-70">没有进行中的任务</p>
+                <p className="game-resource-generation-tasks-empty">
+                  没有进行中的任务
+                </p>
               ) : (
-                <ul className="mt-1 flex flex-col gap-2">
+                <ul className="game-resource-generation-tasks-list">
                   {active.map((task) => taskRow(task, nowMillis, onFocusTask))}
                 </ul>
               )}
             </section>
-            <section aria-label="已完成" className="mt-3">
-              <h3 className="flex items-center justify-between text-xs font-bold">
+            <section
+              className="game-resource-generation-tasks-section"
+              aria-label="已完成"
+            >
+              <h3 className="game-resource-generation-tasks-section-title">
                 <span>已完成</span>
-                <span>{done.length}</span>
+                <span className="game-resource-generation-tasks-section-title-count">
+                  {done.length}
+                </span>
               </h3>
               {done.length === 0 ? (
-                <p className="mt-1 text-[11px] opacity-70">还没有完成的任务</p>
+                <p className="game-resource-generation-tasks-empty">
+                  还没有完成的任务
+                </p>
               ) : (
                 <>
-                  <ul className="mt-1 flex flex-col gap-2">
+                  <ul className="game-resource-generation-tasks-list">
                     {visibleDone.map((task) =>
                       taskRow(task, nowMillis, onFocusTask),
                     )}
                   </ul>
                   {done.length > visibleDone.length ? (
-                    <p className="mt-1 text-[11px] opacity-70">
+                    <p className="game-resource-generation-tasks-empty">
                       {`仅显示最近 ${RESOURCE_CANVAS_ASSET_GENERATION_DONE_SECTION_LIMIT} 条，另有 ${
                         done.length - visibleDone.length
                       } 条较早记录`}
@@ -224,10 +248,10 @@ export function ResourceCanvasAssetGenerationTasksPanelView({
           </>
         )}
       </div>
-      <footer className="flex items-center justify-end border-t border-black/10 px-3 py-2">
+      <footer className="game-resource-generation-tasks-sidebar-footer">
         <button
           type="button"
-          className="grid h-7 w-7 place-items-center rounded-full"
+          className="game-resource-generation-tasks-sidebar-icon-button"
           aria-label="关闭生成任务"
           onClick={onToggleOpen}
         >
diff --git a/apps/ai-game-creator-shell/src/features/resource-canvas/resourceCanvasAssetGenerationTaskModel.ts b/apps/ai-game-creator-shell/src/features/resource-canvas/resourceCanvasAssetGenerationTaskModel.ts
index 150037530..eaa6b87e7 100644
--- a/apps/ai-game-creator-shell/src/features/resource-canvas/resourceCanvasAssetGenerationTaskModel.ts
+++ b/apps/ai-game-creator-shell/src/features/resource-canvas/resourceCanvasAssetGenerationTaskModel.ts
@@ -66,6 +66,25 @@ export const RESOURCE_CANVAS_ASSET_GENERATION_STATUS_LABELS: Record<
   failed: '失败',
 };
 
+/**
+ * 状态 → 视觉 tone（中性 / 品牌 / 成功 / 危险）。
+ *
+ * 放在模型层而不是组件层有两个原因：① 它是纯映射，组件不该自己发明颜色语义；
+ * ② 组件文件只导出组件与常量（`react-refresh/only-export-components`），导出函数会破坏热更新边界。
+ * 具体样式在 `resourceCanvasAssetGenerationTasksSidebar.css` 里按 `[data-tone=…]` 落地，映射由测试钉住。
+ */
+export type ResourceCanvasAssetGenerationTaskTone =
+  | 'queued'
+  | 'running'
+  | 'completed'
+  | 'failed';
+
+export function resourceCanvasAssetGenerationTaskTone(
+  status: ResourceCanvasAssetGenerationTaskStatus,
+): ResourceCanvasAssetGenerationTaskTone {
+  return status;
+}
+
 /**
  * 本地排队的阶段文案。
  *
diff --git a/apps/ai-game-creator-shell/src/features/resource-canvas/resourceCanvasAssetGenerationTasksSidebar.css b/apps/ai-game-creator-shell/src/features/resource-canvas/resourceCanvasAssetGenerationTasksSidebar.css
new file mode 100644
index 000000000..89d8d9ce9
--- /dev/null
+++ b/apps/ai-game-creator-shell/src/features/resource-canvas/resourceCanvasAssetGenerationTasksSidebar.css
@@ -0,0 +1,435 @@
+/* 「生成任务」侧栏的样式。
+ *
+ * 分层与网页端美术画布的任务侧栏（`ImageCanvasTaskSidebarView.tsx` + `src/index.css:6084+`）一一对应：
+ * 容器 → 头部（标题 + 在途计数）→ 分栏标题（各带条数）→ 条目卡片（状态徽标 / 阶段 / 耗时 / 定位）。
+ * 差别只有一处：**颜色全部换成 AGC 的平台设计 token（`--platform-*`）**，不再照抄网页端的固定色值，
+ * 这样亮/暗主题都跟着 `platform-theme` 走，也不引入第二套色板。
+ *
+ * 行为（分栏、条数、已完成封顶、折叠不清列表、提交后自动展开）都不在这里，样式只负责表现。
+ */
+
+.game-resource-generation-tasks-sidebar {
+  position: fixed;
+  top: 4rem;
+  bottom: 6rem;
+  left: 0.75rem;
+  z-index: 40;
+  display: flex;
+  width: min(300px, 80vw);
+  flex-direction: column;
+  overflow: hidden;
+  border: 1px solid var(--platform-subpanel-border);
+  border-radius: 0.75rem;
+  background: var(--platform-subpanel-fill);
+  color: var(--platform-text-strong);
+  box-shadow: var(--platform-panel-shadow);
+  backdrop-filter: blur(10px);
+  animation: game-resource-generation-tasks-enter 160ms ease-out;
+}
+
+/* 提交后面板会重新挂载，动画只负责「进场」这一下；不做宽度 reflow，避免画布抖动。 */
+@keyframes game-resource-generation-tasks-enter {
+  from {
+    opacity: 0;
+    transform: translateX(-0.5rem);
+  }
+
+  to {
+    opacity: 1;
+    transform: translateX(0);
+  }
+}
+
+.game-resource-generation-tasks-sidebar-header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.75rem;
+  border-bottom: 1px solid var(--platform-line-soft);
+  padding: 0.68rem 0.78rem;
+}
+
+.game-resource-generation-tasks-sidebar-title {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.35rem;
+  font-size: 0.8rem;
+  font-weight: 850;
+}
+
+.game-resource-generation-tasks-sidebar-count {
+  display: inline-flex;
+  min-width: 1.35rem;
+  height: 1.35rem;
+  align-items: center;
+  justify-content: center;
+  border: 1px solid var(--platform-neutral-border);
+  border-radius: 999px;
+  background: var(--platform-neutral-bg);
+  color: var(--platform-neutral-text);
+  font-size: 0.72rem;
+  font-variant-numeric: tabular-nums;
+  font-weight: 850;
+}
+
+.game-resource-generation-tasks-sidebar-icon-button {
+  display: grid;
+  width: 1.75rem;
+  height: 1.75rem;
+  place-items: center;
+  border: 1px solid transparent;
+  border-radius: 999px;
+  background: transparent;
+  color: var(--platform-button-ghost-text);
+  transition:
+    background 120ms ease,
+    color 120ms ease,
+    border-color 120ms ease;
+}
+
+.game-resource-generation-tasks-sidebar-icon-button:hover {
+  border-color: var(--platform-subpanel-border);
+  background: var(--platform-nav-item-hover-fill);
+  color: var(--platform-text-strong);
+}
+
+.game-resource-generation-tasks-sidebar-icon-button:focus-visible,
+.game-resource-generation-tasks-handle:focus-visible,
+.game-resource-generation-task-locate:focus-visible {
+  outline: 2px solid var(--platform-accent);
+  outline-offset: 2px;
+  box-shadow: 0 0 0 3px var(--platform-input-focus-ring);
+}
+
+.game-resource-generation-tasks-scroll {
+  min-height: 0;
+  flex: 1 1 auto;
+  overflow-y: auto;
+  overscroll-behavior: contain;
+  padding: 0.5rem 0.6rem;
+  scrollbar-color: var(--platform-line-soft) transparent;
+  scrollbar-width: thin;
+}
+
+.game-resource-generation-tasks-scroll::-webkit-scrollbar {
+  width: 6px;
+}
+
+.game-resource-generation-tasks-scroll::-webkit-scrollbar-thumb {
+  border-radius: 999px;
+  background: var(--platform-line-soft);
+}
+
+.game-resource-generation-tasks-scroll::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+.game-resource-generation-tasks-empty {
+  padding: 1rem 0.5rem;
+  color: var(--platform-text-muted);
+  font-size: 0.74rem;
+  font-weight: 750;
+  text-align: center;
+}
+
+.game-resource-generation-tasks-section
+  + .game-resource-generation-tasks-section {
+  margin-top: 0.65rem;
+  border-top: 1px solid var(--platform-line-soft);
+  padding-top: 0.6rem;
+}
+
+.game-resource-generation-tasks-section-title {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.5rem;
+  color: var(--platform-text-muted);
+  font-size: 0.72rem;
+  font-weight: 850;
+  letter-spacing: 0.02em;
+}
+
+.game-resource-generation-tasks-section-title-count {
+  display: inline-flex;
+  min-width: 1.05rem;
+  height: 1.05rem;
+  align-items: center;
+  justify-content: center;
+  border-radius: 999px;
+  background: var(--platform-neutral-bg);
+  color: var(--platform-neutral-text);
+  font-size: 0.68rem;
+  font-variant-numeric: tabular-nums;
+}
+
+.game-resource-generation-tasks-list {
+  display: grid;
+  gap: 0.38rem;
+  margin-top: 0.4rem;
+}
+
+.game-resource-generation-task-card {
+  display: grid;
+  gap: 0.3rem;
+  width: 100%;
+  border: 1px solid var(--platform-subpanel-border);
+  border-radius: 0.5rem;
+  background: var(--platform-panel-fill);
+  padding: 0.5rem 0.55rem;
+  transition:
+    border-color 120ms ease,
+    box-shadow 120ms ease,
+    transform 120ms ease;
+}
+
+.game-resource-generation-task-card:hover {
+  border-color: var(
+    --platform-surface-hover-border,
+    var(--platform-subpanel-border)
+  );
+  box-shadow: var(--platform-desktop-hover-shadow);
+  transform: translateY(-1px);
+}
+
+.game-resource-generation-task-card-title-row {
+  display: grid;
+  min-width: 0;
+  grid-template-columns: minmax(0, 1fr) auto;
+  align-items: start;
+  gap: 0.45rem;
+}
+
+.game-resource-generation-task-card-name {
+  overflow: hidden;
+  color: var(--platform-text-strong);
+  font-size: 0.78rem;
+  font-weight: 850;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.game-resource-generation-task-card-action {
+  overflow: hidden;
+  color: var(--platform-text-muted);
+  font-size: 0.68rem;
+  font-weight: 750;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.game-resource-generation-task-card-meta {
+  display: grid;
+  grid-template-columns: auto minmax(0, 1fr) auto;
+  align-items: center;
+  gap: 0.4rem;
+}
+
+.game-resource-generation-task-badge {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.3rem;
+  border: 1px solid var(--platform-neutral-border);
+  border-radius: 999px;
+  background: var(--platform-neutral-bg);
+  color: var(--platform-neutral-text);
+  padding: 0.1rem 0.45rem;
+  font-size: 0.68rem;
+  font-weight: 800;
+  white-space: nowrap;
+}
+
+.game-resource-generation-task-badge::before {
+  content: '';
+  width: 0.375rem;
+  height: 0.375rem;
+  border-radius: 999px;
+  background: currentcolor;
+}
+
+/* 四种状态的 tone 映射：中性 / 品牌 / 成功 / 危险，全部走平台 token，不硬编码颜色。 */
+.game-resource-generation-task-badge[data-tone='queued'] {
+  border-color: var(--platform-neutral-border);
+  background: var(--platform-neutral-bg);
+  color: var(--platform-neutral-text);
+}
+
+.game-resource-generation-task-badge[data-tone='running'] {
+  border-color: var(--platform-accent);
+  background: transparent;
+  color: var(--platform-accent);
+}
+
+.game-resource-generation-task-badge[data-tone='completed'] {
+  border-color: var(--platform-success-border);
+  background: var(--platform-success-bg);
+  color: var(--platform-success-text);
+}
+
+.game-resource-generation-task-badge[data-tone='failed'] {
+  border-color: var(--platform-button-danger-border);
+  background: var(--platform-button-danger-fill);
+  color: var(--platform-button-danger-text);
+}
+
+/* 生成中只给「有在动」的呼吸感，不做百分比 —— 后端没有可播报的百分比。 */
+.game-resource-generation-task-badge[data-tone='running']::before {
+  animation: game-resource-generation-task-pulse 1.2s ease-in-out infinite;
+}
+
+@keyframes game-resource-generation-task-pulse {
+  50% {
+    opacity: 0.25;
+  }
+}
+
+.game-resource-generation-task-card-phase {
+  overflow: hidden;
+  color: var(--platform-text-muted);
+  font-size: 0.7rem;
+  line-height: 1.35;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.game-resource-generation-task-card-elapsed {
+  color: var(--platform-text-muted);
+  font-size: 0.68rem;
+  font-variant-numeric: tabular-nums;
+  font-weight: 750;
+  text-align: right;
+  white-space: nowrap;
+}
+
+.game-resource-generation-task-card-error {
+  color: var(--platform-button-danger-text);
+  font-size: 0.7rem;
+  line-height: 1.35;
+  overflow-wrap: anywhere;
+  white-space: normal;
+}
+
+.game-resource-generation-task-locate {
+  justify-self: start;
+  border: 0;
+  background: transparent;
+  color: var(--platform-accent);
+  font-size: 0.7rem;
+  font-weight: 800;
+  padding: 0;
+  text-decoration: underline;
+  text-underline-offset: 0.16rem;
+  transition: color 120ms ease;
+}
+
+.game-resource-generation-task-locate:hover {
+  color: var(--platform-text-strong);
+}
+
+.game-resource-generation-tasks-sidebar-footer {
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  border-top: 1px solid var(--platform-line-soft);
+  padding: 0.4rem 0.6rem;
+}
+
+/* 折叠态：贴边竖向把手 + 在途数量角标。 */
+.game-resource-generation-tasks-handle {
+  position: fixed;
+  top: 50%;
+  left: 0;
+  z-index: 40;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 0.3rem;
+  border: 1px solid var(--platform-subpanel-border);
+  border-left: 0;
+  border-radius: 0 0.75rem 0.75rem 0;
+  background: var(--platform-subpanel-fill);
+  color: var(--platform-text-strong);
+  padding: 0.6rem 0.3rem;
+  box-shadow: var(--platform-panel-shadow);
+  transform: translateY(-50%);
+  transition:
+    background 120ms ease,
+    box-shadow 120ms ease,
+    transform 120ms ease;
+  animation: game-resource-generation-tasks-handle-enter 160ms ease-out;
+}
+
+.game-resource-generation-tasks-handle:hover {
+  background: var(--platform-nav-item-hover-fill);
+  box-shadow: var(--platform-desktop-hover-shadow);
+  transform: translateY(-50%) translateX(0.1rem);
+}
+
+@keyframes game-resource-generation-tasks-handle-enter {
+  from {
+    opacity: 0;
+    transform: translateY(-50%) translateX(-0.5rem);
+  }
+
+  to {
+    opacity: 1;
+    transform: translateY(-50%) translateX(0);
+  }
+}
+
+.game-resource-generation-tasks-handle-label {
+  font-size: 0.7rem;
+  font-weight: 850;
+  writing-mode: vertical-rl;
+}
+
+.game-resource-generation-tasks-handle-badge {
+  display: inline-flex;
+  min-width: 1.1rem;
+  height: 1.1rem;
+  align-items: center;
+  justify-content: center;
+  border: 1px solid var(--platform-accent);
+  border-radius: 999px;
+  color: var(--platform-accent);
+  font-size: 0.68rem;
+  font-variant-numeric: tabular-nums;
+  font-weight: 850;
+}
+
+/* 窄屏（含 360px）：侧栏占满可用宽度，把手只占一条窄边，不挡画布操作。 */
+@media (max-width: 480px) {
+  .game-resource-generation-tasks-sidebar {
+    top: 3.5rem;
+    right: 0.5rem;
+    bottom: 5.5rem;
+    left: 0.5rem;
+    width: auto;
+  }
+
+  .game-resource-generation-tasks-handle {
+    padding: 0.5rem 0.2rem;
+  }
+}
+
+/* 降低动效偏好：进场动画、悬停位移与呼吸全部关掉。 */
+@media (prefers-reduced-motion: reduce) {
+  .game-resource-generation-tasks-sidebar,
+  .game-resource-generation-tasks-handle {
+    animation: none;
+  }
+
+  .game-resource-generation-task-card,
+  .game-resource-generation-tasks-handle,
+  .game-resource-generation-tasks-sidebar-icon-button,
+  .game-resource-generation-task-badge::before,
+  .game-resource-generation-task-locate {
+    transition: none;
+    animation: none;
+  }
+
+  .game-resource-generation-task-card:hover,
+  .game-resource-generation-tasks-handle:hover {
+    transform: none;
+  }
+}
diff --git a/apps/ai-game-creator-shell/tests/resourceCanvasAssetGenerationTasksPanel.test.tsx b/apps/ai-game-creator-shell/tests/resourceCanvasAssetGenerationTasksPanel.test.tsx
index 8ca99210c..20cf0cf70 100644
--- a/apps/ai-game-creator-shell/tests/resourceCanvasAssetGenerationTasksPanel.test.tsx
+++ b/apps/ai-game-creator-shell/tests/resourceCanvasAssetGenerationTasksPanel.test.tsx
@@ -149,14 +149,13 @@ describe('「生成任务」侧栏', () => {
     const { container } = renderSidebar(doneTasks);
 
     const aside = container.querySelector('aside') as HTMLElement;
-    // 有界高度：上下都给死了，不靠内容撑高。
-    expect(aside.className).toContain('top-16');
-    expect(aside.className).toContain('bottom-24');
-    const scroller = container.querySelector(
-      '[data-resource-generation-task-scroll]',
-    ) as HTMLElement;
-    expect(scroller.className).toContain('overflow-y-auto');
-    expect(scroller.className).toContain('min-h-0');
+    // 高度有界与「列表自己滚动」在样式声明里钉（见 SidebarStyle 用例）；这里只确认
+    // 容器与滚动区都挂上了语义类，样式不会落空。
+    expect(aside.className).toContain('game-resource-generation-tasks-sidebar');
+    expect(
+      container.querySelector('[data-resource-generation-task-scroll]')
+        ?.className,
+    ).toContain('game-resource-generation-tasks-scroll');
 
     expect(
       within(screen.getByRole('region', { name: '已完成' })).getAllByRole(
@@ -234,4 +233,44 @@ describe('「生成任务」侧栏', () => {
     renderSidebar([]);
     expect(screen.getByRole('status').textContent).toBe('还没有生成任务');
   });
+
+  test('四种状态各自输出对应的 tone，样式按档落地', () => {
+    renderSidebar([
+      task({ taskId: 't-queued' }),
+      task({
+        taskId: 't-running',
+        dispatched: true,
+        status: 'running',
+        phaseDetail: '正在生成。',
+      }),
+      task({
+        taskId: 't-completed',
+        dispatched: true,
+        status: 'completed',
+        phaseDetail: '生成已完成。',
+        assetId: 'asset-tone',
+        finishedAtMillis: 3_000,
+      }),
+      task({
+        taskId: 't-failed',
+        dispatched: true,
+        status: 'failed',
+        phaseDetail: '生成失败：远端拒绝',
+        error: '远端拒绝',
+      }),
+    ]);
+
+    const tones = ['queued', 'running', 'completed', 'failed'] as const;
+    for (const tone of tones) {
+      expect(
+        document.querySelector(
+          `.game-resource-generation-task-badge[data-tone='${tone}']`,
+        ),
+      ).not.toBeNull();
+    }
+    // 每条任务一个徽标：tone 不重复、不漏档。
+    expect(
+      document.querySelectorAll('.game-resource-generation-task-badge'),
+    ).toHaveLength(4);
+  });
 });
diff --git a/apps/ai-game-creator-shell/tests/resourceCanvasAssetGenerationTasksSidebarStyle.test.ts b/apps/ai-game-creator-shell/tests/resourceCanvasAssetGenerationTasksSidebarStyle.test.ts
new file mode 100644
index 000000000..4a0048426
--- /dev/null
+++ b/apps/ai-game-creator-shell/tests/resourceCanvasAssetGenerationTasksSidebarStyle.test.ts
@@ -0,0 +1,218 @@
+// @vitest-environment jsdom
+import { readFileSync } from 'node:fs';
+import { resolve } from 'node:path';
+
+import { describe, expect, test } from 'vitest';
+
+import {
+  declaration,
+  parseStyleSheet,
+  resolveDeclarations,
+  type StyleRule,
+} from './styleCascade';
+
+/**
+ * 侧栏样式的声明级断言。
+ *
+ * jsdom 不加载这个 CSS 文件，所以这里按仓库既有做法（`styleCascade`）直接解析**真实生效的声明**：
+ * 「状态 tone 映射」「等宽数字」「圆角 / 悬停」「过渡」「reduced-motion 关动效」都用声明钉住。
+ */
+const SIDEBAR_CSS_PATH = resolve(
+  process.cwd(),
+  'apps/ai-game-creator-shell/src/features/resource-canvas/resourceCanvasAssetGenerationTasksSidebar.css',
+);
+const rules = parseStyleSheet(readFileSync(SIDEBAR_CSS_PATH, 'utf8'));
+
+/**
+ * `styleCascade` 的求值器只认识宽度媒体查询，遇到 `prefers-reduced-motion` 会主动报错；
+ * 那条规则的生效与否单独在下面按声明断言，所以求值时先把它排除掉。
+ */
+const widthRules = rules.filter(
+  (rule) => !(rule.media ?? '').includes('prefers-reduced-motion'),
+);
+
+function resolved(
+  selectors: readonly string[],
+  viewportWidth = 1280,
+): Map<string, string> {
+  return resolveDeclarations(widthRules, selectors, viewportWidth);
+}
+
+function toneRule(tone: string): StyleRule | undefined {
+  return rules.find((rule) =>
+    rule.selectors.includes(
+      `.game-resource-generation-task-badge[data-tone='${tone}']`,
+    ),
+  );
+}
+
+describe('「生成任务」侧栏样式', () => {
+  test('四种状态各有一档 tone，取值全部来自平台 token 而不硬编码颜色', () => {
+    const tones = ['queued', 'running', 'completed', 'failed'] as const;
+    const resolvedTones = tones.map((tone) =>
+      resolved([
+        '.game-resource-generation-task-badge',
+        `.game-resource-generation-task-badge[data-tone='${tone}']`,
+      ]),
+    );
+    const signature = (map: Map<string, string>) =>
+      ['border-color', 'background', 'color']
+        .map((property) => declaration(map, property))
+        .join(' | ');
+
+    const signatures = resolvedTones.map(signature);
+    // 四档必须互不相同，否则「状态徽标成体系」这条就退化成同一个样子。
+    expect(new Set(signatures).size).toBe(4);
+    expect(signatures[0]).toContain('--platform-neutral');
+    expect(signatures[1]).toContain('--platform-accent');
+    expect(signatures[2]).toContain('--platform-success');
+    expect(signatures[3]).toContain('--platform-button-danger');
+    for (const one of signatures) {
+      expect(one).not.toMatch(/#[0-9a-f]{3,8}|rgba?\(|hsla?\(/iu);
+    }
+    // 四档 tone 必须在 CSS 里真实存在（少一档这条断言就红）。
+    for (const tone of tones) {
+      expect(toneRule(tone)).toBeDefined();
+    }
+  });
+
+  test('生成中只有「在动」的呼吸感，没有伪造百分比', () => {
+    const running = resolved([
+      '.game-resource-generation-task-badge',
+      ".game-resource-generation-task-badge[data-tone='running']",
+    ]);
+    // 徽标本身不承载进度数值：文案由组件按后端状态给，样式里不出现百分比工具。
+    expect(declaration(running, 'color')).toBe('var(--platform-accent)');
+    const pulse = rules.find((rule) =>
+      rule.selectors.includes(
+        ".game-resource-generation-task-badge[data-tone='running']::before",
+      ),
+    );
+    expect(pulse?.declarations.get('animation')).toContain('pulse');
+  });
+
+  test('阶段是次要信息、已耗时等宽数字右对齐', () => {
+    const phase = resolved(['.game-resource-generation-task-card-phase']);
+    expect(declaration(phase, 'color')).toBe('var(--platform-text-muted)');
+    expect(declaration(phase, 'font-size')).toBe('0.7rem');
+
+    const elapsed = resolved(['.game-resource-generation-task-card-elapsed']);
+    expect(declaration(elapsed, 'font-variant-numeric')).toBe('tabular-nums');
+    expect(declaration(elapsed, 'text-align')).toBe('right');
+  });
+
+  test('条目卡片有圆角与悬停反馈，失败原因可折行不截断', () => {
+    const card = resolved(['.game-resource-generation-task-card']);
+    expect(declaration(card, 'border-radius')).toBe('0.5rem');
+
+    const hover = resolved([
+      '.game-resource-generation-task-card',
+      '.game-resource-generation-task-card:hover',
+    ]);
+    expect(declaration(hover, 'box-shadow')).toBe(
+      'var(--platform-desktop-hover-shadow)',
+    );
+    expect(declaration(hover, 'transform')).toBe('translateY(-1px)');
+
+    const error = resolved(['.game-resource-generation-task-card-error']);
+    expect(declaration(error, 'white-space')).toBe('normal');
+    expect(declaration(error, 'overflow-wrap')).toBe('anywhere');
+
+    const locate = resolved(['.game-resource-generation-task-locate']);
+    expect(declaration(locate, 'text-decoration')).toContain('underline');
+  });
+
+  test('展开 / 折叠都有过渡，折叠把手是竖向标签 + 在途角标', () => {
+    const sidebar = resolved(['.game-resource-generation-tasks-sidebar']);
+    expect(declaration(sidebar, 'animation')).toContain(
+      'game-resource-generation-tasks-enter',
+    );
+    expect(declaration(sidebar, 'border-radius')).toBe('0.75rem');
+    expect(declaration(sidebar, 'backdrop-filter')).toBe('blur(10px)');
+
+    const handle = resolved([
+      '.game-resource-generation-tasks-handle',
+      '.game-resource-generation-tasks-handle:hover',
+    ]);
+    expect(declaration(handle, 'transition')).toContain('transform');
+    expect(declaration(handle, 'transform')).toBe(
+      'translateY(-50%) translateX(0.1rem)',
+    );
+
+    const handleLabel = resolved([
+      '.game-resource-generation-tasks-handle-label',
+    ]);
+    expect(declaration(handleLabel, 'writing-mode')).toBe('vertical-rl');
+
+    const handleBadge = resolved([
+      '.game-resource-generation-tasks-handle-badge',
+    ]);
+    expect(declaration(handleBadge, 'font-variant-numeric')).toBe(
+      'tabular-nums',
+    );
+  });
+
+  test('列表滚动条是细样式，滚动区域有界', () => {
+    const scroll = resolved(['.game-resource-generation-tasks-scroll']);
+    expect(declaration(scroll, 'overflow-y')).toBe('auto');
+    expect(declaration(scroll, 'scrollbar-width')).toBe('thin');
+    expect(declaration(scroll, 'overscroll-behavior')).toBe('contain');
+    const thumb = rules.find((rule) =>
+      rule.selectors.includes(
+        '.game-resource-generation-tasks-scroll::-webkit-scrollbar-thumb',
+      ),
+    );
+    expect(thumb?.declarations.get('background')).toBe(
+      'var(--platform-line-soft)',
+    );
+
+    // 侧栏高度有界：上下边界都给死，不靠内容撑高（内容再多也只滚列表）。
+    const sidebar = resolved(['.game-resource-generation-tasks-sidebar']);
+    expect(declaration(sidebar, 'top')).toBe('4rem');
+    expect(declaration(sidebar, 'bottom')).toBe('6rem');
+    expect(declaration(sidebar, 'width')).toBe('min(300px, 80vw)');
+  });
+
+  test('窄屏（360px）下侧栏不溢出不挡把手', () => {
+    const narrow = resolved(['.game-resource-generation-tasks-sidebar'], 360);
+    expect(declaration(narrow, 'width')).toBe('auto');
+    expect(declaration(narrow, 'left')).toBe('0.5rem');
+    expect(declaration(narrow, 'right')).toBe('0.5rem');
+  });
+
+  test('prefers-reduced-motion 下进场动画与过渡都被关掉', () => {
+    const reduced = rules.filter((rule) =>
+      (rule.media ?? '').includes('prefers-reduced-motion'),
+    );
+    expect(reduced.length).toBeGreaterThan(0);
+    const motionless = (selector: string, property: string) =>
+      reduced.some(
+        (rule) =>
+          rule.selectors.includes(selector) &&
+          rule.declarations.get(property) === 'none',
+      );
+    expect(
+      motionless('.game-resource-generation-tasks-sidebar', 'animation'),
+    ).toBe(true);
+    expect(
+      motionless('.game-resource-generation-tasks-handle', 'animation'),
+    ).toBe(true);
+    expect(
+      motionless('.game-resource-generation-task-card', 'transition'),
+    ).toBe(true);
+  });
+
+  test('焦点环可见（键盘可见焦点用平台 token）', () => {
+    const focusRule = rules.find((rule) =>
+      rule.selectors.includes(
+        '.game-resource-generation-tasks-handle:focus-visible',
+      ),
+    );
+    expect(focusRule?.declarations.get('outline')).toBe(
+      '2px solid var(--platform-accent)',
+    );
+    expect(focusRule?.declarations.get('box-shadow')).toBe(
+      '0 0 0 3px var(--platform-input-focus-ring)',
+    );
+  });
+});