diff --git a/.gitignore b/.gitignore
index 05d0c81..9f11a7d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ coverage
 .eslintcache
 *.tsbuildinfo
 .DS_Store
+.worktree/
diff --git a/README.md b/README.md
index c3ef552..aa266cd 100644
--- a/README.md
+++ b/README.md
@@ -55,11 +55,11 @@ API_PROXY_TARGET=http://localhost:3412
 ## 技术与规范
 
 - Vite 8、Vue 3、TypeScript、Vue Router
-- Tailwind CSS 4，通过 `@tailwindcss/vite` 集成
+- Tailwind CSS 4，通过 `@tailwindcss/vite` 集成；组件专属样式写在 SFC `<style>`，主题变量、base、Naive 覆盖和跨页原子 class 留在 `src/styles/styles.css` / `src/styles/admin.css`
 - Naive UI：布局、菜单、表格、选择器、输入框、按钮、弹窗、标签、折叠面板、进度和时间线
 - Oxlint：脚本质量检查；ESLint：补充 Vue 模板语义
 - Oxfmt（不是 `oxformat`）：沿用后端四空格、单引号、无分号、无尾逗号的风格
-- Vitest + Vue Test Utils + happy-dom：API 契约、组件交互和异步生命周期测试
+- Vitest + Vue Test Utils + happy-dom：API 契约、组件交互和异步生命周期测试；`*.test.ts` 放在 `tests/`，按 `src` 镜像，不和组件放在一起
 - Lefthook + Commitlint：提交前执行检查，提交信息使用 `feat:`、`fix:`、`refactor:` 等
 
 ```bash
@@ -89,6 +89,8 @@ Oxfmt 不负责代码质量，Oxlint 不负责 Vue 的完整类型推导；Vue S
 | `src/composables` | 具备取消和竞态保护的轮询、系统主题与偏好持久化 |
 | `src/lib` | HTTP、错误格式、日期和导出工具 |
 | `src/router` | 按 graph 拆分的懒加载路由 |
+| `src/styles` | 全局主题、base、Naive 覆盖和跨页原子 class |
+| `tests` | 与 `src` 镜像的 `*.test.ts`，不和组件源码放在一起 |
 
 每个功能模块通过 `index.ts` 暴露公共入口。业务类型和行为函数均添加中文职责注释。不要把下一条 graph 的服务继续堆进 `App.vue`。
 
@@ -126,7 +128,7 @@ Oxfmt 不负责代码质量，Oxlint 不负责 Vue 的完整类型推导；Vue S
 - 拆解设置中“每组集数”和“抽取模块”使用相同标题间距；输入框、复选框与预览按钮对齐到 34px 控件行，模块说明独立放在下方。“集 / 组”保持单行，窄抽屉按实际内容宽度将操作和完整模块分组换行，校验与预览逻辑不变。
 - 窄屏默认收起侧栏，目录与正文改用紧凑布局；执行记录仍可查看。长弹窗在自身内部滚动。
 
-布局样式集中在 `src/admin.css`，业务排版保留在 `src/styles.css`。新增页面应使用 `WorkspacePage`（内容优先页开启 `compact`），低频操作使用 `WorkspaceTools`；避免通过 `body` 或 `window.scrollTo` 管理滚动。
+布局样式集中在 `src/styles/admin.css`，业务排版保留在 `src/styles/styles.css`。新增页面应使用 `WorkspacePage`（内容优先页开启 `compact`），低频操作使用 `WorkspaceTools`；避免通过 `body` 或 `window.scrollTo` 管理滚动。
 
 本次 UI 重构保留前端 `dev@5551653` 的业务更新，包括过期形态图、主首帧和主视频的提示与更新入口。首帧默认只补当前剧集；存在过期主首帧时优先更新全项目过期项。非覆盖模式下的过期主视频重建完成后，会接替旧主视频；普通新增候选不自动替换主资产。
 
diff --git a/src/App.vue b/src/App.vue
index 975d700..c0a45c4 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { computed, h, provide, ref, shallowRef } from 'vue'
+import { computed, h, onScopeDispose, provide, ref, shallowRef, watch } from 'vue'
 import { RouterLink, useRoute } from 'vue-router'
 import {
     NButton,
@@ -7,7 +7,6 @@ import {
     NGlobalStyle,
     NLayout,
     NLayoutHeader,
-    NLayoutSider,
     NMenu,
     NScrollbar,
     NTooltip,
@@ -33,10 +32,61 @@ import { useTheme } from './composables/useTheme'
 import ThemeToggle from './components/ui/ThemeToggle.vue'
 import { projectAccessKey, type ProjectAccess } from './features/projects/access'
 
+/** 窄屏与桌面共用同一侧栏；窄屏展开时主栏右移，宽度保持折叠时的尺寸。 */
+const NARROW_NAV = '(max-width: 800px)'
+/** 折叠侧栏宽度，与菜单 collapsed-width 对齐。 */
+const SIDER_COLLAPSED_WIDTH = 64
+/** 展开侧栏宽度，窄屏裁切动画以内层保持该宽度。 */
+const SIDER_EXPANDED_WIDTH = 208
+/** 菜单图标尺寸，折叠/展开共用，避免切换时缩放。 */
+const NAV_ICON_SIZE = 20
+/** 折叠与展开共用的图标左偏移，避免切换时图标跳动。 */
+const NAV_ICON_INDENT = SIDER_COLLAPSED_WIDTH / 2 - NAV_ICON_SIZE / 2
+
 /** 应用外壳固定在视口内，业务数据仍由各工作区自行加载。 */
 const route = useRoute()
-const collapsed = ref(window.matchMedia('(max-width: 800px)').matches)
+const narrowMedia = window.matchMedia(NARROW_NAV)
+const narrow = ref(narrowMedia.matches)
+const collapsed = ref(narrow.value)
 const settingsOpen = ref(false)
+/** 窄屏折叠只裁切文字，不把菜单收成图标，避免推挤动画时错位。 */
+const menuCollapsed = computed(() => !narrow.value && collapsed.value)
+
+/** 视口跨过断点时：进入窄屏收回侧栏。 */
+function syncNarrow(event: MediaQueryListEvent) {
+    narrow.value = event.matches
+    if (event.matches) collapsed.value = true
+}
+narrowMedia.addEventListener('change', syncNarrow)
+onScopeDispose(() => narrowMedia.removeEventListener('change', syncNarrow))
+
+/** 宽屏与窄屏都只切换这一份侧栏的展开态。 */
+function toggleNav() {
+    collapsed.value = !collapsed.value
+}
+
+/** 打开后端连接说明；窄屏先收回侧栏给弹窗腾出宽度。 */
+function openSettings() {
+    if (narrow.value) collapsed.value = true
+    settingsOpen.value = true
+}
+
+watch(
+    () => route.fullPath,
+    () => {
+        if (narrow.value) collapsed.value = true
+    }
+)
+
+/** Esc 收回窄屏展开的侧栏。 */
+function onKeydown(event: KeyboardEvent) {
+    if (event.key === 'Escape' && narrow.value && !collapsed.value) collapsed.value = true
+}
+window.addEventListener('keydown', onKeydown)
+onScopeDispose(() => window.removeEventListener('keydown', onKeydown))
+
+/** 顶栏切换按钮的可访问名称。 */
+const navToggleLabel = computed(() => (collapsed.value ? '展开侧栏' : '折叠侧栏'))
 const { preference, theme, overrides } = useTheme()
 const projectId = computed(() => String(route.params.projectId || ''))
 const projectAccess = shallowRef<ProjectAccess | null>(null)
@@ -91,18 +141,22 @@ const menuOptions = computed<MenuOption[]>(() => [
     >
         <NGlobalStyle />
         <a href="#main-content" class="skip-link">跳到主要内容</a>
-        <NLayout has-sider class="admin-layout">
-            <NLayoutSider
-                collapse-mode="width"
-                :collapsed="collapsed"
-                :width="208"
-                :collapsed-width="64"
-                :native-scrollbar="false"
+        <div
+            class="admin-layout"
+            :style="{
+                '--admin-sider-collapsed': SIDER_COLLAPSED_WIDTH + 'px',
+                '--admin-sider-expanded': SIDER_EXPANDED_WIDTH + 'px'
+            }"
+        >
+            <!-- 以下是主导航侧栏：宽屏与窄屏共用同一份 -->
+            <aside
                 class="admin-sider"
-                content-class="admin-sider-content"
+                :class="{ 'is-collapsed': collapsed }"
+                :style="{ width: (collapsed ? SIDER_COLLAPSED_WIDTH : SIDER_EXPANDED_WIDTH) + 'px' }"
+                aria-label="主导航"
             >
                 <RouterLink to="/projects" class="admin-brand" aria-label="短剧工作台首页">
-                    <Clapperboard :size="24" /><span v-if="!collapsed"
+                    <Clapperboard :size="24" /><span v-if="!menuCollapsed"
                         >短剧工作台<small>SHORT DRAMA STUDIO</small></span
                     >
                 </RouterLink>
@@ -110,9 +164,12 @@ const menuOptions = computed<MenuOption[]>(() => [
                     <NMenu
                         :value="route.path"
                         :options="menuOptions"
-                        :collapsed="collapsed"
-                        :collapsed-width="64"
-                        :collapsed-icon-size="19"
+                        :collapsed="menuCollapsed"
+                        :collapsed-width="SIDER_COLLAPSED_WIDTH"
+                        :icon-size="NAV_ICON_SIZE"
+                        :collapsed-icon-size="NAV_ICON_SIZE"
+                        :indent="NAV_ICON_INDENT"
+                        :root-indent="NAV_ICON_INDENT"
                     />
                 </NScrollbar>
                 <footer class="admin-sider-footer">
@@ -122,27 +179,29 @@ const menuOptions = computed<MenuOption[]>(() => [
                                 quaternary
                                 block
                                 class="admin-settings-button"
-                                :class="{ 'is-collapsed': collapsed, 'icon-button': collapsed }"
+                                :class="{ 'is-collapsed': menuCollapsed }"
                                 aria-label="后端连接"
-                                @click="settingsOpen = true"
+                                @click="openSettings"
                             >
                                 <template #icon><Settings2 :size="18" /></template>
-                                <span v-if="!collapsed">后端连接</span>
+                                <span v-if="!menuCollapsed">后端连接</span>
                             </NButton>
                         </template>
                         后端连接
                     </NTooltip>
                 </footer>
-            </NLayoutSider>
+            </aside>
+            <!-- 以下是顶栏与主内容 -->
             <NLayout class="admin-main">
                 <NLayoutHeader class="admin-topbar">
                     <div class="flex min-w-0 items-center gap-3">
                         <NButton
                             quaternary
                             class="icon-button"
-                            :aria-label="collapsed ? '展开侧栏' : '折叠侧栏'"
-                            :title="collapsed ? '展开侧栏' : '折叠侧栏'"
-                            @click="collapsed = !collapsed"
+                            :aria-label="navToggleLabel"
+                            :title="navToggleLabel"
+                            :aria-expanded="!collapsed"
+                            @click="toggleNav"
                         >
                             <template #icon
                                 ><PanelLeftOpen v-if="collapsed" :size="18" /><PanelLeftClose v-else :size="18"
@@ -154,7 +213,7 @@ const menuOptions = computed<MenuOption[]>(() => [
                 </NLayoutHeader>
                 <main id="main-content" tabindex="-1" class="admin-content"><RouterView /></main>
             </NLayout>
-        </NLayout>
+        </div>
         <AppDialog
             v-model:open="settingsOpen"
             title="后端连接"
@@ -175,3 +234,105 @@ const menuOptions = computed<MenuOption[]>(() => [
         </AppDialog>
     </NConfigProvider>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "styles/styles.css";
+.skip-link {
+    @apply fixed z-[100] -top-[80px] left-[15px] py-2.5 px-[15px] bg-(--app-surface) border-[1px_solid_var(--color-accent)];
+}
+.skip-link:focus {
+    @apply top-2.5 z-[3000];
+}
+.admin-layout {
+    --admin-sider-collapsed: 64px;
+    --admin-sider-expanded: 208px;
+    @apply flex h-dvh overflow-hidden;
+}
+.admin-main {
+    @apply min-w-0 h-full flex-1;
+}
+.admin-main > .n-layout-scroll-container {
+    @apply h-full flex flex-col overflow-hidden;
+}
+.admin-sider {
+    @apply flex flex-col h-full w-[208px] shrink-0 overflow-hidden bg-(--app-subtle);
+}
+.admin-sider.is-collapsed {
+    @apply w-16;
+}
+.admin-nav-scroll.n-scrollbar {
+    @apply flex-1 min-h-0;
+}
+.admin-sider-footer {
+    @apply shrink-0;
+    padding-block: 8px max(8px, env(safe-area-inset-bottom));
+}
+.n-button.admin-settings-button {
+    @apply justify-start h-11 px-5;
+}
+.admin-sider .n-menu .n-menu-item-content::before {
+    @apply left-0 right-0 rounded-none;
+}
+.admin-brand {
+    @apply flex shrink-0 items-center gap-3 h-[74px] py-0 px-5 text-ink whitespace-nowrap;
+}
+.admin-brand > svg {
+    @apply shrink-0;
+}
+.admin-brand span {
+    @apply text-[15px] font-semibold;
+}
+.admin-brand small {
+    @apply block text-[8px] tracking-[1px] font-normal text-muted mt-[3px];
+}
+.admin-topbar {
+    @apply relative z-10 flex items-center justify-between shrink-0 h-11 py-0 px-5 gap-3 bg-(--app-surface);
+}
+.admin-sider .n-menu-divider {
+    @apply h-3 bg-transparent;
+}
+.admin-content {
+    @apply flex-1 min-h-0 min-w-0 overflow-hidden outline-none;
+}
+@media (max-width: 800px) {
+    .admin-sider {
+        overflow: hidden;
+        transition: width 0.32s cubic-bezier(0.22, 1, 0.36, 1);
+    }
+    /* 主栏宽度锁在折叠态剩余空间，侧栏变宽时把主栏推到右侧而不是压窄。 */
+    .admin-layout > .admin-main {
+        flex: 0 0 auto;
+        width: calc(100% - var(--admin-sider-collapsed));
+        min-width: calc(100% - var(--admin-sider-collapsed));
+        max-width: calc(100% - var(--admin-sider-collapsed));
+    }
+    .admin-brand,
+    .admin-nav-scroll.n-scrollbar,
+    .admin-sider-footer {
+        min-width: var(--admin-sider-expanded);
+    }
+    .admin-brand span,
+    .admin-sider .n-menu-item-content-header,
+    .admin-settings-button span {
+        opacity: 1;
+        transition: opacity 0.2s ease;
+    }
+    .admin-sider.is-collapsed .admin-brand span,
+    .admin-sider.is-collapsed .n-menu-item-content-header,
+    .admin-sider.is-collapsed .admin-settings-button span {
+        opacity: 0;
+    }
+    .admin-topbar {
+        @apply py-0 px-2.5;
+    }
+}
+@media (prefers-reduced-motion: reduce) {
+    .admin-sider,
+    .admin-brand span,
+    .admin-sider .n-menu-item-content-header,
+    .admin-settings-button span {
+        transition: none;
+    }
+}
+</style>
diff --git a/src/admin.css b/src/admin.css
deleted file mode 100644
index a1269f8..0000000
--- a/src/admin.css
+++ /dev/null
@@ -1,1763 +0,0 @@
-/* 管理后台视口边界：document 不滚动，各个工作区和面板独立滚动。 */
-:root {
-    --app-ink: #191919;
-    --app-muted: #707070;
-    --app-body: #ededed;
-    --app-surface: #ffffff;
-    --app-subtle: #f7f7f7;
-    --app-control: #f0f0f0;
-    --app-control-hover: #e5e5e5;
-    --app-field: #ffffff;
-    --app-field-hover: #ffffff;
-    --app-border: #e5e5e5;
-    --app-inverse: #ffffff;
-    --app-accent: #07c160;
-    --app-accent-hover: #2dcb79;
-    --app-accent-text: #087c42;
-    --app-on-accent: #ffffff;
-    --app-button-primary: #078640;
-    --app-button-hover: #087c42;
-    --app-button-pressed: #066b36;
-    --app-disabled-bg: #e4e4e4;
-    --app-disabled-text: #8c8c8c;
-    --app-selected: #e4f4e9;
-    --app-shadow: #00000018;
-    --app-danger: #a93232;
-    --app-success: #087c42;
-}
-:root[data-theme='dark'] {
-    --app-ink: #d9d9d9;
-    --app-muted: #a3a3a3;
-    --app-body: #111111;
-    --app-surface: #191919;
-    --app-subtle: #232323;
-    --app-control: #2b2b2b;
-    --app-control-hover: #353535;
-    --app-field: #2b2b2b;
-    --app-field-hover: #353535;
-    --app-disabled-bg: #303030;
-    --app-disabled-text: #808080;
-    --app-border: #333333;
-    --app-inverse: #111111;
-    --app-accent-text: #5cd693;
-    --app-selected: #173527;
-    --app-shadow: #00000055;
-    --app-danger: #fa7373;
-    --app-success: #5cd693;
-}
-html,
-body,
-#app,
-.app-provider {
-    height: 100%;
-    min-height: 0;
-    overflow: hidden;
-}
-html {
-    background: var(--app-body);
-}
-body {
-    margin: 0;
-}
-.admin-layout {
-    height: 100dvh;
-    overflow: hidden;
-}
-.admin-main {
-    min-width: 0;
-    height: 100%;
-}
-.admin-main > .n-layout-scroll-container {
-    height: 100%;
-    display: flex;
-    flex-direction: column;
-    overflow: hidden;
-}
-.admin-sider {
-    height: 100%;
-}
-/* 外壳固定品牌与底部设置；只有菜单自身使用 NScrollbar 滚动。 */
-.admin-sider-content {
-    display: flex;
-    flex-direction: column;
-    height: 100%;
-    min-height: 0;
-    overflow: hidden;
-}
-.admin-nav-scroll.n-scrollbar {
-    flex: 1;
-    min-height: 0;
-}
-.admin-sider-footer {
-    flex-shrink: 0;
-    padding-block: 8px max(8px, env(safe-area-inset-bottom));
-}
-.n-button.admin-settings-button {
-    justify-content: flex-start;
-    height: 44px;
-    padding-inline: 20px;
-}
-.n-button.admin-settings-button.is-collapsed {
-    justify-content: center;
-    padding-inline: 0;
-    width: 44px;
-    min-width: 44px;
-    height: 44px;
-    margin-inline: auto;
-}
-.admin-settings-button.is-collapsed .n-button__icon {
-    margin: 0;
-}
-/* Naive 菜单背景默认左右内缩 8px；只铺满导航行，不改图标与文字缩进。 */
-.admin-sider .n-menu .n-menu-item-content::before {
-    left: 0;
-    right: 0;
-    border-radius: 0;
-}
-.admin-brand {
-    display: flex;
-    flex-shrink: 0;
-    align-items: center;
-    gap: 12px;
-    height: 74px;
-    padding: 0 20px;
-    color: var(--app-ink);
-    white-space: nowrap;
-}
-.admin-brand > svg {
-    flex-shrink: 0;
-}
-.admin-brand span {
-    font-size: 15px;
-    font-weight: 600;
-}
-.admin-brand small {
-    display: block;
-    font-size: 8px;
-    letter-spacing: 1px;
-    font-weight: 400;
-    color: var(--app-muted);
-    margin-top: 3px;
-}
-.admin-topbar {
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    flex-shrink: 0;
-    height: 44px;
-    padding: 0 20px;
-    gap: 12px;
-}
-/* 按钮保持直角，单图标按钮以 Naive 当前尺寸为边长，加载时也不改变宽度。 */
-.n-button {
-    border-radius: 0;
-}
-.n-button.icon-button {
-    width: var(--n-height);
-    min-width: var(--n-height);
-    height: var(--n-height);
-    padding: 0;
-    flex: 0 0 auto;
-}
-.n-button.icon-button .n-button__icon {
-    margin: 0;
-}
-.n-button:focus-visible {
-    outline: 2px solid var(--app-accent-text);
-    outline-offset: 2px;
-}
-.admin-sider .n-menu-divider {
-    height: 12px;
-    background: transparent;
-}
-.workspace-tools-drawer .n-drawer-header,
-.workspace-tools-drawer .n-drawer-footer {
-    background: var(--app-subtle);
-}
-.workspace-tools-drawer .n-drawer-body {
-    background: var(--app-body);
-}
-.n-button.theme-toggle {
-    flex-shrink: 0;
-    width: 34px;
-    height: 34px;
-}
-.admin-content {
-    flex: 1;
-    min-height: 0;
-    min-width: 0;
-    overflow: hidden;
-    outline: none;
-}
-.project-frame {
-    display: flex;
-    flex-direction: column;
-    height: 100%;
-    min-height: 0;
-    overflow: hidden;
-}
-.project-header {
-    flex-shrink: 0;
-    padding: 9px 20px;
-    background: var(--app-surface);
-}
-.project-header .n-page-header__main,
-.project-header .n-page-header__title {
-    min-width: 0;
-    overflow: hidden;
-}
-.project-title {
-    max-width: 100%;
-    font-size: 16px;
-    font-weight: 600;
-}
-.project-notices.n-scrollbar {
-    flex-shrink: 0;
-    height: auto;
-    max-height: 100px;
-    overflow: hidden;
-}
-.project-notices-content {
-    padding: 8px 24px;
-    display: grid;
-    gap: 5px;
-}
-.project-notices .n-alert {
-    padding: 7px 12px;
-    font-size: 12px;
-}
-.project-view {
-    flex: 1;
-    min-height: 0;
-    overflow: hidden;
-}
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-}
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-}
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-}
-.breakdown-episode-picker > span {
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-}
-.breakdown-episode-picker .n-select {
-    flex: 1;
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-}
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-    display: flex;
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-    min-height: 34px;
-    margin-left: auto;
-}
-.breakdown-storyboard-count {
-    color: var(--app-muted);
-    font-size: 12px;
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-}
-.breakdown-storyboard-summary .text-button {
-    min-height: 34px;
-    white-space: nowrap;
-}
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-.script-section .n-tabs-tab__label {
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-}
-.script-section .content-with-history.history-hidden {
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-}
-.episode-reader {
-    display: grid;
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-    height: 100%;
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-}
-.reader-directory {
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-}
-.reader-directory-heading {
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-}
-.reader-directory-heading h3 {
-    font-weight: 600;
-}
-.reader-directory-heading span {
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-}
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-}
-.reader-directory-content {
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-}
-.n-button.reader-episode-link {
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-}
-.reader-episode-label {
-    font-size: 13px;
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-}
-.reader-episode-title {
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-    line-height: 1.6;
-    overflow-wrap: anywhere;
-}
-.n-button.reader-episode-link.active {
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-}
-.reader-page {
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-}
-.reader-scroll .n-scrollbar-container:focus-visible {
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-}
-.reader-content {
-    /* 正文紧邻目录左对齐，保留阅读行宽，不在宽屏内容区居中。 */
-    max-width: 900px;
-    margin-inline: 0;
-    padding: 32px;
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-}
-.reader-chapter + .reader-chapter {
-    margin-top: 48px;
-    padding-top: 36px;
-}
-.reader-chapter:last-child {
-    /* 末集较短时仍可定位到阅读线，不必把倒数第二集误认为当前集。 */
-    min-height: max(160px, calc(var(--reader-height) - 64px));
-}
-.reader-chapter-heading {
-    margin-bottom: 24px;
-}
-.reader-chapter-heading p {
-    color: var(--app-muted);
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-    margin-bottom: 10px;
-}
-.reader-chapter-heading h2 {
-    font-size: clamp(18px, 2cqw, 24px);
-    font-weight: 600;
-    line-height: 1.6;
-    overflow-wrap: anywhere;
-}
-@media (max-width: 1000px) {
-    .episode-reader {
-        grid-template-columns: 180px minmax(0, 1fr);
-    }
-}
-@media (max-width: 600px) {
-    .episode-reader {
-        grid-template-columns: 112px minmax(0, 1fr);
-    }
-    .reader-directory-heading {
-        padding: 16px 12px 12px;
-        flex-wrap: wrap;
-    }
-    .n-button.reader-episode-link {
-        padding: 12px 10px;
-    }
-    .reader-content {
-        padding-inline: 18px;
-    }
-}
-/* 面板只负责尺寸与裁切；滚动和深浅主题滚动条统一交给 Naive UI。 */
-.panel-scroll.n-scrollbar {
-    height: 100%;
-    min-height: 0;
-    min-width: 0;
-    overflow: hidden;
-}
-.n-scrollbar > .n-scrollbar-container {
-    overscroll-behavior: contain;
-}
-.production-shot-list,
-.production-detail,
-.storyboard-detail,
-.shot-list,
-.content-with-history > main {
-    min-width: 0;
-    min-height: 0;
-}
-.history-panel,
-.production-shot-list,
-.shot-list {
-    padding: 0;
-}
-.history-content {
-    padding: 23px 21px;
-}
-.image-history.n-scrollbar,
-.table-scroll.n-scrollbar {
-    height: auto;
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-}
-.image-history.n-scrollbar {
-    width: 100%;
-    max-width: 100%;
-    min-width: 0;
-}
-.image-history-heading {
-    display: flex;
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-    align-items: center;
-    justify-content: space-between;
-    gap: 6px 16px;
-    margin-block: 16px 8px;
-    font-size: 12px;
-}
-.image-history-content {
-    display: flex;
-    gap: 12px;
-    padding: 4px 4px 12px;
-    width: max-content;
-}
-.code-scroll.n-scrollbar {
-    height: auto;
-    max-height: 420px;
-    overflow: hidden;
-}
-.code-scroll .json-view,
-.code-scroll .storyboard-json {
-    max-height: none;
-    overflow: visible;
-}
-.project-table-area {
-    flex: 1;
-    min-height: 0;
-}
-.project-data-table {
-    height: 100%;
-}
-.project-data-table .n-data-table-base-table {
-    flex: 1;
-    min-height: 0;
-}
-.project-index-heading {
-    margin: 0;
-}
-.project-index-heading h1 {
-    font-size: 22px;
-    font-weight: 600;
-}
-.project-index-toolbar {
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    flex-wrap: wrap;
-    gap: 12px;
-    margin-bottom: 4px;
-}
-.project-search {
-    width: 240px;
-}
-/* 项目筛选与搜索框同高，保留更宽的点击区；窄屏可自然换行。 */
-.project-status-filters.n-radio-group {
-    display: flex;
-    flex-wrap: wrap;
-    height: auto;
-    min-height: var(--n-height);
-    gap: 4px 1px;
-}
-.project-status-filters .n-radio-group__splitor {
-    display: none;
-}
-.project-status-filters .n-radio-button {
-    min-width: 76px;
-    padding-inline: 18px;
-    text-align: center;
-}
-/* 状态说明与操作各自成组，避免小标签夹在不同尺寸的按钮之间。 */
-.visual-style-toolbar {
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    flex-wrap: wrap;
-    gap: 16px 24px;
-    margin-block: 20px;
-    padding: 14px 16px;
-    background: var(--app-subtle);
-}
-.visual-style-status {
-    display: flex;
-    align-items: center;
-    gap: 12px;
-    min-width: 0;
-}
-.visual-style-status > svg {
-    flex-shrink: 0;
-    color: var(--app-muted);
-}
-.visual-style-status strong {
-    font-size: 14px;
-    font-weight: 500;
-}
-.visual-style-status p {
-    margin: 4px 0 0;
-    color: var(--app-muted);
-    font-size: 12px;
-    line-height: 1.6;
-}
-.visual-style-actions {
-    display: flex;
-    align-items: center;
-    flex-wrap: wrap;
-    gap: 10px;
-    margin-left: auto;
-}
-.project-name-cell {
-    display: block;
-    min-width: 0;
-}
-.project-name-cell strong,
-.project-name-cell small {
-    display: block;
-    overflow: hidden;
-    text-overflow: ellipsis;
-    white-space: nowrap;
-}
-.project-name-cell small {
-    color: var(--app-muted);
-    margin-top: 4px;
-    font-size: 11px;
-}
-.app-dialog {
-    max-width: calc(100vw - 32px);
-    max-height: calc(100dvh - 32px);
-}
-.app-dialog .n-card-header {
-    flex-shrink: 0;
-}
-.dialog-body-scroll {
-    max-height: calc(100dvh - 154px);
-}
-.app-dialog .n-card__content {
-    min-height: 0;
-}
-.dialog-footer {
-    display: flex;
-    justify-content: flex-end;
-    gap: 8px;
-    padding-top: 16px;
-}
-.asset-image .n-image {
-    width: 100%;
-    height: 100%;
-    min-height: 0;
-    min-width: 0;
-    display: flex;
-    justify-content: center;
-}
-.asset-image .n-image img {
-    width: 100%;
-    height: 100%;
-}
-/* 预览尺寸不随原图分辨率增长，历史缩略图也不能被按钮默认宽度覆盖。 */
-.asset-image.asset-image-preview {
-    height: min(42dvh, 420px);
-    min-height: 0;
-    aspect-ratio: auto;
-}
-.n-button__content {
-    gap: 6px;
-}
-.n-button:disabled {
-    opacity: 1;
-}
-.n-button.image-history-item {
-    width: 128px;
-    min-width: 128px;
-    max-width: 128px;
-    flex: 0 0 128px;
-    height: auto;
-    padding: 6px;
-    white-space: normal;
-    background: var(--app-subtle);
-}
-.n-button.image-history-item.selected {
-    background: var(--app-selected);
-    box-shadow: inset 0 0 0 2px var(--app-accent);
-}
-.n-button.image-history-item .n-button__content {
-    display: block;
-    width: 100%;
-    text-align: left;
-    overflow: hidden;
-}
-.image-history-item .asset-image {
-    height: 88px;
-    min-height: 0;
-    aspect-ratio: auto;
-}
-.image-history-label {
-    display: block;
-    margin-top: 6px;
-    font-size: 11px;
-    line-height: 1.5;
-    overflow-wrap: anywhere;
-}
-.image-history-meta {
-    display: flex;
-    align-items: center;
-    flex-wrap: wrap;
-    gap: 4px;
-    margin-top: 6px;
-    color: var(--app-muted);
-    font-size: 10px;
-    line-height: 1.5;
-}
-/* 选角进度按抽屉实际宽度排列；按钮尺寸显式覆盖组件默认值。 */
-.casting-list {
-    display: grid;
-    grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
-    gap: 12px;
-    margin-top: 24px;
-    padding-top: 20px;
-}
-.n-button.casting-item {
-    width: 100%;
-    min-width: 0;
-    height: auto;
-    min-height: 76px;
-    padding: 12px 14px;
-    white-space: normal;
-    text-align: left;
-    background: var(--app-subtle);
-}
-.n-button.casting-item.selected {
-    background: var(--app-selected);
-    box-shadow: inset 3px 0 0 var(--app-accent);
-}
-.n-button.casting-item .n-button__content {
-    display: flex;
-    width: 100%;
-    min-width: 0;
-    align-items: center;
-    justify-content: space-between;
-    gap: 16px;
-    text-align: left;
-}
-.casting-item-identity {
-    display: flex;
-    flex-direction: column;
-    gap: 5px;
-    min-width: 0;
-}
-.casting-item-name {
-    font-size: 14px;
-    font-weight: 500;
-    line-height: 1.5;
-    overflow-wrap: anywhere;
-}
-.casting-item-ref {
-    color: var(--app-muted);
-    font-family: ui-monospace, monospace;
-    font-size: 11px;
-    line-height: 1.5;
-    overflow-wrap: anywhere;
-}
-.casting-item-status {
-    flex-shrink: 0;
-}
-/* 主体搜索靠左，统计紧随输入框；窄内容区自然换行，不占满整行或挤压控件。 */
-.subject-list-toolbar {
-    display: flex;
-    flex-wrap: wrap;
-    align-items: center;
-    justify-content: flex-start;
-    gap: 10px 12px;
-    margin-bottom: 20px;
-}
-.subject-list-search.n-input {
-    flex: 0 1 260px;
-    min-width: 0;
-    max-width: 100%;
-}
-.subject-list-count {
-    flex-shrink: 0;
-    color: var(--app-muted);
-    font-size: 12px;
-    white-space: nowrap;
-}
-/* 诊断筛选按实际空间换行，长 checkpoint ID 不撑开弹窗。 */
-.diagnostics-filters {
-    display: flex;
-    flex-wrap: wrap;
-    align-items: center;
-    gap: 12px;
-}
-.diagnostics-filters > .n-input {
-    flex: 1 1 240px;
-    min-width: 0;
-}
-.diagnostics-filters > .n-select {
-    flex: 0 1 180px;
-    min-width: 0;
-}
-.diagnostics-records {
-    display: grid;
-    gap: 12px;
-    min-width: 0;
-}
-/* 镜头影响和素材定位使用固定底色；高亮只表示当前定位，不代表素材失效。 */
-.asset-impact-context {
-    display: flex;
-    flex-direction: column;
-    gap: 10px;
-    padding: 5px 16px;
-    background: var(--app-subtle);
-    margin: 0;
-    min-width: 0;
-}
-/* 关联素材始终单行横向浏览，数量和长名称不会撑高定位区或压缩图片区域。 */
-.asset-impact-links-scroll.n-scrollbar {
-    height: auto;
-    min-width: 0;
-    max-width: 100%;
-}
-.asset-impact-links {
-    display: flex;
-    align-items: center;
-    gap: 12px;
-    width: max-content;
-    white-space: nowrap;
-    min-height: 32px;
-    padding-block: 6px;
-}
-.asset-impact-links > * {
-    flex-shrink: 0;
-}
-.asset-impact-select {
-    min-width: 0;
-    width: 100%;
-}
-.form-image-card-focused {
-    box-shadow: inset 3px 0 0 var(--app-accent-text);
-}
-/* 低频记录收起后归还正文宽度，不留下历史列的占位。 */
-.breakdown-results-section > .content-with-history.history-hidden {
-    grid-template-columns: minmax(0, 1fr);
-    grid-template-rows: minmax(0, 1fr);
-}
-/* 补充说明只按需展开，继续使用平直背景层级，不增加边框或圆角。 */
-.detail-disclosure.n-collapse {
-    font-size: 12px;
-    color: var(--app-muted);
-}
-.detail-disclosure-content {
-    padding: 12px 14px;
-    background: var(--app-subtle);
-    color: var(--app-ink);
-    line-height: 1.8;
-}
-.quality-fields {
-    display: grid;
-    grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
-    align-items: start;
-    gap: 16px;
-}
-.quality-result {
-    margin-top: 24px;
-    padding: 16px;
-    background: var(--app-subtle);
-}
-.quality-result-row {
-    display: flex;
-    flex-wrap: wrap;
-    align-items: center;
-    gap: 8px 12px;
-    margin-top: 10px;
-    padding: 12px;
-    background: var(--app-control);
-    font-size: 12px;
-    overflow-wrap: anywhere;
-}
-.quality-json {
-    margin-top: 16px;
-    white-space: pre-wrap;
-    overflow-wrap: anywhere;
-    font-size: 11px;
-    line-height: 1.7;
-}
-.select-control {
-    min-width: 130px;
-}
-.n-checkbox {
-    align-items: flex-start;
-}
-.n-checkbox .n-checkbox__label {
-    white-space: normal;
-}
-.n-alert {
-    line-height: 1.8;
-}
-.n-collapse.panel {
-    padding: 16px;
-}
-.n-table.project-table th {
-    background: var(--app-subtle);
-}
-.empty-state {
-    min-height: 200px;
-    padding: 40px 20px;
-}
-.production-video {
-    background: #080808;
-}
-.skip-link:focus {
-    z-index: 3000;
-}
-@media (max-width: 1000px) {
-    .production-controls {
-        grid-template-columns: minmax(130px, 1fr) 90px;
-    }
-    .content-with-history {
-        grid-template-columns: minmax(0, 1fr) 180px;
-    }
-}
-@media (max-width: 760px) {
-    .admin-topbar {
-        padding: 0 10px;
-    }
-    .admin-sider:not(.n-layout-sider--collapsed) {
-        position: absolute;
-        top: 44px;
-        bottom: 0;
-        height: auto;
-        z-index: 20;
-        box-shadow: 6px 0 24px var(--app-shadow);
-    }
-    .project-header {
-        padding: 8px 12px;
-    }
-    .project-title {
-        font-size: 14px;
-    }
-    .workspace-heading {
-        padding: 12px;
-    }
-    .content-first-workspace .workspace-heading {
-        padding: 8px 12px;
-    }
-    .content-first-workspace .workspace-split,
-    .content-first-workspace .workspace-scroll-content {
-        padding: 0 12px 12px;
-    }
-    .toolbar-episode {
-        flex: 1;
-    }
-    .toolbar-actions {
-        gap: 8px;
-    }
-    .workspace-tools-body {
-        padding: 14px;
-    }
-    .workspace-scroll-content,
-    .workspace-split {
-        padding: 0 12px 12px;
-    }
-    .workspace-heading .production-controls {
-        grid-template-columns: minmax(100px, 1fr) 80px;
-    }
-    .production-workspace,
-    .storyboard-workspace {
-        grid-template-columns: minmax(0, 1fr);
-        grid-template-rows: 184px minmax(0, 1fr);
-    }
-    .directory-panel {
-        height: 100%;
-        border-right: 0;
-    }
-    .directory-heading {
-        padding: 12px 14px 8px;
-    }
-    .directory-list-content {
-        flex-direction: row;
-        width: max-content;
-        align-items: stretch;
-        padding-bottom: 12px;
-    }
-    .n-button.directory-item {
-        width: 228px;
-        min-height: 104px;
-    }
-    .directory-group-heading {
-        display: none;
-    }
-    .beat-directory-group,
-    .beat-directory-items {
-        display: contents;
-    }
-    .directory-mobile-beat {
-        display: inline;
-    }
-    .identity-workspace {
-        grid-template-columns: minmax(0, 1fr);
-        grid-template-rows: 250px minmax(0, 1fr);
-        gap: 10px;
-    }
-    .directory-filters {
-        grid-template-columns: minmax(0, 1fr) 120px;
-    }
-    .storyboard-controls {
-        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
-    }
-    .content-with-history {
-        grid-template-columns: minmax(0, 1fr);
-        grid-template-rows: minmax(0, 1fr) 130px;
-    }
-    .breakdown-results-section > .content-with-history {
-        grid-template-rows: minmax(0, 1fr) min(25%, 130px);
-    }
-    .history-panel {
-        overflow: hidden;
-        min-height: 0;
-    }
-    .project-search {
-        width: 100%;
-    }
-    .project-index-toolbar .n-radio-group {
-        width: 100%;
-    }
-    .production-pipeline {
-        grid-template-columns: 1fr;
-    }
-}
diff --git a/src/components/NotFoundPage.vue b/src/components/NotFoundPage.vue
index 56f3ae8..67d3166 100644
--- a/src/components/NotFoundPage.vue
+++ b/src/components/NotFoundPage.vue
@@ -9,3 +9,21 @@ import { EmptyState } from './ui'
         >
     </section>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../styles/styles.css";
+.page-container {
+    @apply max-w-[1540px] mx-auto pt-[37px] px-10 pb-14;
+}
+@media (max-width: 1200px) {
+    .page-container {
+        @apply px-[26px];
+    }
+}
+@media (max-width: 760px) {
+    .page-container {
+        @apply pt-[25px] px-[18px] pb-10;
+    }
+}
+</style>
diff --git a/src/components/ui/AppDialog.vue b/src/components/ui/AppDialog.vue
index ae7eee7..e039086 100644
--- a/src/components/ui/AppDialog.vue
+++ b/src/components/ui/AppDialog.vue
@@ -24,3 +24,24 @@ const open = defineModel<boolean>('open', { default: false })
         </NScrollbar>
     </NModal>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.app-dialog {
+    --app-field: var(--app-control);
+    --app-field-hover: var(--app-control-hover);
+}
+.app-dialog {
+    @apply max-w-[calc(100vw-32px)] max-h-[calc(100dvh-32px)];
+}
+.app-dialog .n-card-header {
+    @apply shrink-0;
+}
+.dialog-body-scroll {
+    @apply max-h-[calc(100dvh-154px)];
+}
+.app-dialog .n-card__content {
+    @apply min-h-0;
+}
+</style>
diff --git a/src/components/ui/AssetImage.vue b/src/components/ui/AssetImage.vue
index 8f9b761..046ebc4 100644
--- a/src/components/ui/AssetImage.vue
+++ b/src/components/ui/AssetImage.vue
@@ -50,3 +50,26 @@ watch(
         >
     </div>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.asset-image {
+    @apply grid place-items-center w-full aspect-[4/3] overflow-hidden bg-(--app-subtle);
+}
+.asset-image img {
+    @apply w-full h-full min-h-0;
+}
+.asset-image-empty {
+    @apply flex items-center justify-center flex-col gap-2.5 p-5 text-muted text-[11px] text-center;
+}
+.asset-image .n-image {
+    @apply w-full h-full min-h-0 min-w-0 flex justify-center;
+}
+.asset-image .n-image img {
+    @apply w-full h-full;
+}
+.asset-image.asset-image-preview {
+    @apply h-[min(42dvh,420px)] min-h-0 aspect-auto;
+}
+</style>
diff --git a/src/components/ui/DetailDisclosure.vue b/src/components/ui/DetailDisclosure.vue
index b75340c..7395495 100644
--- a/src/components/ui/DetailDisclosure.vue
+++ b/src/components/ui/DetailDisclosure.vue
@@ -21,3 +21,14 @@ function toggle() {
             <div class="detail-disclosure-content"><slot /></div></NCollapseItem
     ></NCollapse>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.detail-disclosure.n-collapse {
+    @apply text-xs text-muted;
+}
+.detail-disclosure-content {
+    @apply py-3 px-3.5 bg-(--app-subtle) text-ink leading-[1.8];
+}
+</style>
diff --git a/src/components/ui/DirectoryItem.vue b/src/components/ui/DirectoryItem.vue
index 1690a0b..3437388 100644
--- a/src/components/ui/DirectoryItem.vue
+++ b/src/components/ui/DirectoryItem.vue
@@ -21,3 +21,46 @@ defineProps<{ active: boolean }>()
         </span>
     </NButton>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.n-button.directory-item {
+    @apply flex shrink-0 w-full h-auto min-h-[88px] py-3 px-3.5 rounded-none whitespace-normal text-left;
+}
+.n-button.directory-item .n-button__content {
+    @apply block w-full min-w-0;
+}
+.directory-item-body {
+    @apply flex flex-col items-start gap-[7px] min-w-0;
+}
+.n-button.directory-item.has-leading .n-button__content {
+    @apply flex items-center gap-3;
+}
+.directory-item-leading {
+    @apply flex shrink-0;
+}
+.directory-item.has-leading .directory-item-body {
+    @apply flex-1;
+}
+.directory-item-eyebrow {
+    @apply font-mono text-[11px] leading-normal text-muted wrap-anywhere;
+}
+.directory-item-title {
+    @apply text-[13px] leading-[1.7] font-medium text-ink wrap-anywhere;
+}
+.directory-item-meta {
+    @apply flex items-center flex-wrap gap-y-1.5 gap-x-2 text-muted text-[11px] leading-[1.7] wrap-anywhere;
+}
+.n-button.directory-item.selected {
+    @apply bg-(--app-selected) shadow-[inset_3px_0_var(--app-accent)];
+}
+.n-button.directory-item:focus-visible {
+    @apply outline-[2px_solid_var(--app-accent)] outline-offset-[-2px];
+}
+@media (max-width: 760px) {
+    .n-button.directory-item {
+        @apply w-[228px] min-h-[104px];
+    }
+}
+</style>
diff --git a/src/components/ui/EmptyState.vue b/src/components/ui/EmptyState.vue
index 07c1ce5..3d64bab 100644
--- a/src/components/ui/EmptyState.vue
+++ b/src/components/ui/EmptyState.vue
@@ -13,3 +13,14 @@ defineProps<{ title: string; description: string }>()
         ></template>
     </NEmpty>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.empty-state {
+    @apply flex flex-col items-center justify-center min-h-[300px] py-[52px] px-6 text-center;
+}
+.empty-state {
+    @apply min-h-[200px] py-10 px-5;
+}
+</style>
diff --git a/src/components/ui/ThemeToggle.vue b/src/components/ui/ThemeToggle.vue
index 04580b5..41207f0 100644
--- a/src/components/ui/ThemeToggle.vue
+++ b/src/components/ui/ThemeToggle.vue
@@ -34,3 +34,11 @@ function selectTheme(key: string | number) {
         </NButton>
     </NDropdown>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.n-button.theme-toggle {
+    @apply shrink-0 w-[34px] h-[34px];
+}
+</style>
diff --git a/src/components/ui/WorkspacePage.vue b/src/components/ui/WorkspacePage.vue
index 7f2be9f..ba9c4a0 100644
--- a/src/components/ui/WorkspacePage.vue
+++ b/src/components/ui/WorkspacePage.vue
@@ -12,3 +12,72 @@ defineProps<{ split?: boolean; compact?: boolean }>()
         <NScrollbar v-else class="workspace-scroll" content-class="workspace-scroll-content"><slot /></NScrollbar>
     </section>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.workspace-page {
+    @apply relative h-full flex flex-col min-h-0 overflow-hidden;
+}
+.workspace-heading-scroll.n-scrollbar {
+    @apply shrink-0 h-auto max-h-[min(35dvh,260px)] overflow-hidden;
+}
+.workspace-heading {
+    @apply pt-4 px-6 pb-3;
+}
+.content-first-workspace .workspace-heading {
+    @apply py-2 px-5;
+}
+.content-first-workspace .workspace-split {
+    @apply pt-0 px-5 pb-3 gap-2;
+}
+.content-first-workspace .workspace-scroll-content {
+    @apply pt-0 px-5 pb-4;
+}
+.workspace-heading h2 {
+    @apply text-base;
+}
+.workspace-heading .text-sm {
+    @apply text-xs;
+}
+.workspace-heading .production-controls {
+    @apply gap-3;
+}
+.workspace-heading .n-input-number {
+    @apply w-full;
+}
+.workspace-scroll {
+    @apply flex-1 min-h-0;
+}
+.workspace-scroll-content {
+    @apply pt-1 px-6 pb-6;
+}
+.workspace-scroll > .n-scrollbar-container {
+    @apply overscroll-contain;
+}
+.workspace-split {
+    @apply flex flex-col flex-1 min-h-0 overflow-hidden pt-1 px-6 pb-5 gap-3;
+}
+.workspace-split > .my-6 {
+    @apply m-0 shrink-0;
+}
+@media (max-width: 760px) {
+    .workspace-heading {
+        @apply p-3;
+    }
+    .content-first-workspace .workspace-heading {
+        @apply py-2 px-3;
+    }
+    .content-first-workspace .workspace-split,
+    .content-first-workspace .workspace-scroll-content {
+        @apply pt-0 px-3 pb-3;
+    }
+    .workspace-scroll-content,
+    .workspace-split {
+        @apply pt-0 px-3 pb-3;
+    }
+    .workspace-heading .production-controls {
+        @apply grid-cols-[minmax(100px,_1fr)_80px];
+    }
+}
+</style>
diff --git a/src/components/ui/WorkspaceTools.vue b/src/components/ui/WorkspaceTools.vue
index 8456664..4a002e9 100644
--- a/src/components/ui/WorkspaceTools.vue
+++ b/src/components/ui/WorkspaceTools.vue
@@ -46,3 +46,45 @@ const open = defineModel<boolean>('open', { default: false })
         </NDrawerContent>
     </NDrawer>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.workspace-tools-drawer .n-drawer-header,
+.workspace-tools-drawer .n-drawer-footer {
+    @apply bg-(--app-subtle);
+}
+.workspace-tools-drawer .n-drawer-body {
+    @apply bg-(--app-body);
+}
+.workspace-tools-drawer {
+    @apply max-w-full;
+}
+.workspace-tools-heading {
+    @apply flex items-center justify-between gap-4 w-full text-[15px];
+}
+.workspace-tools-body {
+    @apply p-5;
+}
+.workspace-tools-body .storyboard-controls,
+.workspace-tools-body .production-controls {
+    @apply grid grid-cols-[repeat(auto-fit,_minmax(160px,_1fr))] gap-4 my-5;
+}
+.workspace-tools-body .storyboard-coverage {
+    @apply my-5;
+}
+.workspace-tools-body .generation-row {
+    @apply block;
+}
+.workspace-tools-body .generation-row > div + div {
+    @apply mt-3.5;
+}
+.workspace-tools-body .production-pipeline {
+    @apply grid-cols-[repeat(auto-fit,_minmax(min(100%,_230px),_1fr))];
+}
+@media (max-width: 760px) {
+    .workspace-tools-body {
+        @apply p-3.5;
+    }
+}
+</style>
diff --git a/src/features/breakdown/BreakdownPage.vue b/src/features/breakdown/BreakdownPage.vue
index 0708fb1..63cdad4 100644
--- a/src/features/breakdown/BreakdownPage.vue
+++ b/src/features/breakdown/BreakdownPage.vue
@@ -497,3 +497,95 @@ function exportResult() {
         </template>
     </WorkspacePage>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.group-preview {
+    @apply mt-6 pt-5;
+}
+.group-chip {
+    @apply flex items-center gap-2.5 bg-(--app-subtle) rounded-none py-2 px-[11px] text-[11px];
+}
+.recovery-strip {
+    @apply bg-(--app-subtle) flex justify-between flex-wrap items-center gap-[15px] p-[17px] rounded-none;
+}
+.breakdown-settings-panel {
+    container: breakdown-settings / inline-size;
+}
+.breakdown-config {
+    @apply grid grid-cols-[180px_minmax(0,_1fr)_auto] items-start gap-y-4 gap-x-6;
+    --breakdown-label-offset: 28px;
+}
+.breakdown-config .field-label {
+    @apply mt-0 mx-0 mb-2 p-0 leading-[20px];
+}
+.breakdown-group-field,
+.breakdown-modules-field,
+.breakdown-module-option {
+    @apply min-w-0;
+}
+.breakdown-group-input {
+    @apply flex items-center gap-3;
+}
+.breakdown-group-number.n-input-number {
+    @apply flex-[0_0_120px] w-[120px];
+}
+.breakdown-group-unit {
+    @apply shrink-0 whitespace-nowrap text-muted text-sm;
+}
+.breakdown-modules-field {
+    @apply m-0 p-0 border-0;
+}
+.breakdown-module-options {
+    @apply grid grid-cols-[repeat(3,_minmax(0,_1fr))] gap-y-3 gap-x-4;
+}
+.breakdown-module-description {
+    @apply mt-1 mx-0 mb-0 pl-6 text-muted text-[11px] leading-[18px] wrap-anywhere;
+}
+.breakdown-preview-button.n-button {
+    @apply self-start mt-[var(--breakdown-label-offset)] whitespace-nowrap;
+}
+@container breakdown-settings (max-width: 780px) {
+    .breakdown-config {
+        @apply grid-cols-[180px_minmax(0,_1fr)];
+    }
+    .breakdown-preview-button.n-button {
+        @apply col-[2] justify-self-end mt-0;
+    }
+}
+@container breakdown-settings (max-width: 560px) {
+    .breakdown-config {
+        @apply grid-cols-[minmax(0,_1fr)];
+    }
+    .breakdown-module-options {
+        @apply grid-cols-[repeat(auto-fit,_minmax(min(100%,_160px),_1fr))];
+    }
+    .breakdown-preview-button.n-button {
+        @apply col-[1];
+    }
+}
+.result-toolbar .n-tabs-tab__label {
+    @apply inline-flex gap-1.5;
+}
+.breakdown-results-section {
+    @apply flex flex-col flex-1 min-h-0 min-w-0 gap-2;
+}
+.breakdown-results-section > .result-toolbar {
+    @apply shrink-0;
+}
+.breakdown-results-section > .content-with-history {
+    @apply flex-1 h-auto min-h-0 grid-rows-[minmax(0,_1fr)];
+}
+.breakdown-results-scroll .n-scrollbar-content {
+    @apply wrap-anywhere;
+}
+.breakdown-results-section > .content-with-history.history-hidden {
+    @apply grid-cols-[minmax(0,_1fr)] grid-rows-[minmax(0,_1fr)];
+}
+@media (max-width: 760px) {
+    .breakdown-results-section > .content-with-history {
+        @apply grid-rows-[minmax(0,_1fr)_min(25%,_130px)];
+    }
+}
+</style>
diff --git a/src/features/breakdown/components/StoryboardList.vue b/src/features/breakdown/components/StoryboardList.vue
index eeebee9..d0d5547 100644
--- a/src/features/breakdown/components/StoryboardList.vue
+++ b/src/features/breakdown/components/StoryboardList.vue
@@ -106,3 +106,52 @@ const purposeLabels: Record<string, string> = {
         />
     </div>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../../styles/styles.css";
+.beat-section {
+    @apply mt-[25px] pt-[23px];
+}
+.beat-heading {
+    @apply flex items-center gap-2.5;
+}
+.beat-number {
+    @apply text-muted font-mono text-[11px];
+}
+.shot-row {
+    @apply flex gap-[17px] p-[17px] rounded-none bg-(--app-subtle);
+}
+.shot-label {
+    @apply shrink-0 w-[47px] text-[10px] text-muted;
+}
+@media (max-width: 760px) {
+    .shot-row {
+        @apply gap-3 p-[13px];
+    }
+}
+.breakdown-storyboard {
+    @apply pt-4 px-5 pb-5;
+}
+.breakdown-storyboard-toolbar {
+    @apply flex items-center justify-between flex-wrap gap-y-3 gap-x-6 mb-4;
+}
+.breakdown-episode-picker {
+    @apply flex items-center gap-3 flex-[0_1_420px] min-w-0 text-sm;
+}
+.breakdown-episode-picker > span {
+    @apply shrink-0 whitespace-nowrap;
+}
+.breakdown-episode-picker .n-select {
+    @apply flex-1 min-w-0;
+}
+.breakdown-storyboard-summary {
+    @apply flex items-center flex-wrap gap-y-2 gap-x-5 min-h-[34px] ml-auto;
+}
+.breakdown-storyboard-count {
+    @apply text-muted text-xs whitespace-nowrap;
+}
+.breakdown-storyboard-summary .text-button {
+    @apply min-h-[34px] whitespace-nowrap;
+}
+</style>
diff --git a/src/features/breakdown/components/SubjectList.vue b/src/features/breakdown/components/SubjectList.vue
index 789926a..a60b52d 100644
--- a/src/features/breakdown/components/SubjectList.vue
+++ b/src/features/breakdown/components/SubjectList.vue
@@ -117,3 +117,35 @@ const filtered = computed(() =>
         />
     </div>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../../styles/styles.css";
+.subject-record-list > article:nth-child(odd) {
+    @apply bg-(--app-control);
+}
+.subject-form-card {
+    @apply mt-3 p-4 min-w-0 wrap-anywhere bg-(--app-subtle);
+}
+.subject-record-list > article:nth-child(even) .subject-form-card {
+    @apply bg-(--app-control);
+}
+.subject-details summary {
+    @apply inline-flex items-center gap-[5px] text-ink text-[11px] list-none;
+}
+.subject-details summary::-webkit-details-marker {
+    @apply hidden;
+}
+.subject-details[open] summary svg {
+    @apply rotate-180;
+}
+.subject-list-toolbar {
+    @apply flex flex-wrap items-center justify-start gap-y-2.5 gap-x-3 mb-5;
+}
+.subject-list-search.n-input {
+    @apply flex-[0_1_260px] min-w-0 max-w-full;
+}
+.subject-list-count {
+    @apply shrink-0 text-muted text-xs whitespace-nowrap;
+}
+</style>
diff --git a/src/features/create-drama/CreateDramaPage.vue b/src/features/create-drama/CreateDramaPage.vue
index fc90515..06fa8b1 100644
--- a/src/features/create-drama/CreateDramaPage.vue
+++ b/src/features/create-drama/CreateDramaPage.vue
@@ -249,3 +249,49 @@ function exportScript() {
             </div></div
     ></WorkspacePage>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.stage-strip {
+    @apply flex flex-wrap items-center gap-3.5;
+}
+.stage-item {
+    @apply flex items-center gap-[7px] text-muted text-[11px];
+}
+.stage-item.done {
+    @apply text-ink;
+}
+.stage-arrow {
+    @apply ml-3 text-muted;
+}
+.json-view {
+    @apply whitespace-pre-wrap wrap-anywhere p-4 bg-(--app-subtle) rounded-none font-mono text-[11px] leading-[1.9];
+}
+@media (max-width: 760px) {
+    .stage-strip {
+        @apply gap-[9px];
+    }
+    .stage-arrow {
+        @apply ml-[3px];
+    }
+}
+.script-section {
+    @apply flex-1 flex flex-col min-h-0;
+}
+.script-section > :first-child {
+    @apply shrink-0;
+}
+.script-section .content-with-history {
+    @apply flex-1 h-auto min-h-0;
+}
+.script-workspace-page .workspace-split > :not(.script-section) {
+    @apply shrink-0;
+}
+.script-section .n-tabs-tab__label {
+    @apply inline-flex items-center gap-2;
+}
+.script-section .content-with-history.history-hidden {
+    @apply grid-cols-[minmax(0,_1fr)] grid-rows-[minmax(0,_1fr)];
+}
+</style>
diff --git a/src/features/create-drama/EpisodeReader.vue b/src/features/create-drama/EpisodeReader.vue
index d3163bb..f70624e 100644
--- a/src/features/create-drama/EpisodeReader.vue
+++ b/src/features/create-drama/EpisodeReader.vue
@@ -166,3 +166,106 @@ onBeforeUnmount(() => observer?.disconnect())
         </div>
     </div>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.script-summary {
+    @apply text-xs text-muted leading-[1.9] pt-[17px] px-0 pb-[22px] mb-[23px];
+}
+.script-body {
+    @apply whitespace-pre-wrap wrap-anywhere text-sm leading-[2.15] text-ink;
+}
+.script-notes {
+    @apply mt-9 pt-5 text-xs;
+}
+.script-notes dt {
+    @apply text-ink font-medium mb-1.5;
+}
+.script-notes dd {
+    @apply text-muted leading-[1.8] mb-[15px];
+}
+.episode-reader {
+    @apply grid grid-cols-[clamp(190px,_22%,_240px)_minmax(0,_1fr)] h-full min-h-0 min-w-0 overflow-hidden;
+    container-type: inline-size;
+}
+.reader-directory {
+    @apply flex flex-col min-h-0 min-w-0 bg-(--app-subtle);
+}
+.reader-directory-heading {
+    @apply flex justify-between items-center shrink-0 gap-2 pt-[22px] px-5 pb-3.5 text-[13px];
+}
+.reader-directory-heading h3 {
+    @apply font-semibold;
+}
+.reader-directory-heading span {
+    @apply text-[11px] text-muted whitespace-nowrap;
+}
+.reader-directory-scroll {
+    @apply flex-1;
+}
+.reader-directory-content {
+    @apply flex flex-col gap-1.5 pt-1 px-0 pb-[18px];
+}
+.n-button.reader-episode-link {
+    @apply shrink-0 w-full h-auto min-h-[64px] py-3 px-3.5 rounded-none text-muted whitespace-normal text-left;
+}
+.n-button.reader-episode-link .n-button__content {
+    @apply flex flex-col items-start gap-[5px] w-full min-w-0;
+}
+.reader-episode-label {
+    @apply text-[13px] font-semibold leading-normal;
+}
+.reader-episode-title {
+    @apply text-xs leading-[1.6] wrap-anywhere;
+}
+.n-button.reader-episode-link.active {
+    @apply bg-(--app-selected) text-accent shadow-[inset_3px_0_var(--app-accent)];
+}
+.reader-page {
+    @apply min-w-0 min-h-0 overflow-hidden bg-(--app-surface);
+}
+.reader-scroll .n-scrollbar-container:focus-visible {
+    @apply outline-[2px_solid_var(--app-accent)] outline-offset-[-3px];
+}
+.reader-content {
+    @apply mx-0 p-8 text-left;
+    /* 正文紧邻目录左对齐，保留阅读行宽，不在宽屏内容区居中。 */
+    max-width: 900px;
+}
+.reader-chapter + .reader-chapter {
+    @apply mt-12 pt-9;
+}
+.reader-chapter:last-child {
+    /* 末集较短时仍可定位到阅读线，不必把倒数第二集误认为当前集。 */
+    min-height: max(160px, calc(var(--reader-height) - 64px));
+}
+.reader-chapter-heading {
+    @apply mb-6;
+}
+.reader-chapter-heading p {
+    @apply text-muted text-[13px] font-medium mb-2.5;
+}
+.reader-chapter-heading h2 {
+    @apply text-[clamp(18px,2cqw,24px)] font-semibold leading-[1.6] wrap-anywhere;
+}
+@media (max-width: 1000px) {
+    .episode-reader {
+        @apply grid-cols-[180px_minmax(0,_1fr)];
+    }
+}
+@media (max-width: 600px) {
+    .episode-reader {
+        @apply grid-cols-[112px_minmax(0,_1fr)];
+    }
+    .reader-directory-heading {
+        @apply pt-4 px-3 pb-3 flex-wrap;
+    }
+    .n-button.reader-episode-link {
+        @apply py-3 px-2.5;
+    }
+    .reader-content {
+        @apply px-[18px];
+    }
+}
+</style>
diff --git a/src/features/production/ProductionPage.vue b/src/features/production/ProductionPage.vue
index a8f8415..1219246 100644
--- a/src/features/production/ProductionPage.vue
+++ b/src/features/production/ProductionPage.vue
@@ -619,3 +619,99 @@ watch(
         />
     </WorkspacePage>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.production-controls {
+    @apply grid grid-cols-[minmax(220px,_1.6fr)_minmax(110px,_0.5fr)_minmax(230px,_1fr)_auto] items-end gap-[18px];
+}
+.production-pipeline {
+    @apply grid grid-cols-[repeat(3,_minmax(0,_1fr))] gap-3.5;
+}
+.production-pipeline-card {
+    @apply p-5;
+}
+.production-stats {
+    @apply grid grid-cols-[repeat(3,_1fr)] gap-2;
+}
+.production-stats div,
+.production-status-grid div {
+    @apply p-2.5 rounded-none bg-(--app-subtle);
+}
+.production-stats dt,
+.production-status-grid dt {
+    @apply text-muted text-[10px];
+}
+.production-stats dd,
+.production-status-grid dd {
+    @apply mt-[5px] text-[13px] font-mono;
+}
+.production-status-grid {
+    @apply grid grid-cols-[repeat(5,_minmax(0,_1fr))] gap-2.5;
+}
+.production-workspace {
+    @apply grid grid-cols-[220px_minmax(0,_1fr)] items-start overflow-hidden;
+}
+.production-shot-list {
+    @apply max-h-[760px] overflow-hidden bg-(--app-surface) py-2;
+}
+@media (max-width: 1100px) {
+    .production-pipeline {
+        @apply grid-cols-[1fr];
+    }
+    .production-controls {
+        @apply grid-cols-[repeat(2,_minmax(0,_1fr))];
+    }
+}
+@media (max-width: 760px) {
+    .production-controls,
+    .production-workspace {
+        @apply grid-cols-[minmax(0,_1fr)];
+    }
+    .production-shot-list {
+        @apply flex max-h-none overflow-hidden;
+        border-right: none;
+    }
+    .production-status-grid {
+        @apply grid-cols-[repeat(2,_minmax(0,_1fr))];
+    }
+}
+.workspace-inline-status {
+    @apply flex items-center flex-wrap justify-between gap-y-2 gap-x-4 py-[7px] px-3 shrink-0 rounded-none bg-(--app-subtle) text-xs;
+}
+.production-pipeline-card > .confirm-action {
+    @apply mt-4 mb-1;
+}
+.production-workspace {
+    @apply flex-1 min-h-0 items-stretch overflow-hidden;
+}
+.production-workspace {
+    @apply grid-cols-[clamp(240px,_22%,_280px)_minmax(0,_1fr)];
+}
+.production-shot-list {
+    @apply max-h-none overflow-hidden min-h-0;
+}
+.production-workspace > article {
+    @apply overflow-hidden min-h-0 overscroll-contain;
+}
+.production-shot-list-content {
+    @apply gap-3 pt-0 px-0 pb-3;
+}
+.production-shot-list {
+    @apply p-0;
+}
+@media (max-width: 1000px) {
+    .production-controls {
+        @apply grid-cols-[minmax(130px,_1fr)_90px];
+    }
+}
+@media (max-width: 760px) {
+    .production-workspace {
+        @apply grid-cols-[minmax(0,_1fr)] grid-rows-[184px_minmax(0,_1fr)];
+    }
+    .production-pipeline {
+        @apply grid-cols-[1fr];
+    }
+}
+</style>
diff --git a/src/features/production/components/QualityDialog.vue b/src/features/production/components/QualityDialog.vue
index 0042126..8fa5604 100644
--- a/src/features/production/components/QualityDialog.vue
+++ b/src/features/production/components/QualityDialog.vue
@@ -259,3 +259,11 @@ async function submit() {
         </p>
     </AppDialog>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../../styles/styles.css";
+.quality-fields {
+    @apply grid grid-cols-[repeat(auto-fit,_minmax(min(100%,_180px),_1fr))] items-start gap-4;
+}
+</style>
diff --git a/src/features/production/components/QualityResult.vue b/src/features/production/components/QualityResult.vue
index af9ea48..bd7baf6 100644
--- a/src/features/production/components/QualityResult.vue
+++ b/src/features/production/components/QualityResult.vue
@@ -140,3 +140,17 @@ function exportResult() {
         </NCollapse>
     </section>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../../styles/styles.css";
+.quality-result {
+    @apply mt-6 p-4 bg-(--app-subtle);
+}
+.quality-result-row {
+    @apply flex flex-wrap items-center gap-y-2 gap-x-3 mt-2.5 p-3 bg-(--app-control) text-xs wrap-anywhere;
+}
+.quality-json {
+    @apply mt-4 whitespace-pre-wrap wrap-anywhere text-[11px] leading-[1.7];
+}
+</style>
diff --git a/src/features/production/components/ShotProductionAssets.vue b/src/features/production/components/ShotProductionAssets.vue
index 0d39099..e66362f 100644
--- a/src/features/production/components/ShotProductionAssets.vue
+++ b/src/features/production/components/ShotProductionAssets.vue
@@ -523,3 +523,46 @@ async function inspectSpecs() {
         />
     </section>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../../styles/styles.css";
+.production-stage {
+    @apply py-5 px-0;
+}
+.production-stage:first-of-type {
+    @apply border-t-0;
+}
+.production-stage-heading {
+    @apply flex items-start justify-between gap-4;
+}
+.keyframe-grid {
+    @apply grid grid-cols-[repeat(3,_minmax(0,_1fr))] gap-3;
+}
+.keyframe-card {
+    @apply overflow-hidden rounded-none bg-(--app-subtle);
+}
+.keyframe-card .asset-image {
+    @apply aspect-video rounded-none;
+}
+.video-record {
+    @apply flex overflow-hidden rounded-none bg-(--app-subtle);
+}
+.production-video {
+    @apply w-[min(44%,390px)] min-h-[170px] bg-ink object-contain;
+}
+@media (max-width: 760px) {
+    .keyframe-grid {
+        @apply grid-cols-[repeat(2,_minmax(0,_1fr))];
+    }
+    .video-record {
+        @apply block;
+    }
+    .production-video {
+        @apply w-full;
+    }
+}
+.production-video {
+    @apply bg-[#080808];
+}
+</style>
diff --git a/src/features/projects/ProjectLayout.vue b/src/features/projects/ProjectLayout.vue
index 099d418..7e0f2ca 100644
--- a/src/features/projects/ProjectLayout.vue
+++ b/src/features/projects/ProjectLayout.vue
@@ -80,3 +80,50 @@ onScopeDispose(() => {
         </div>
     </section>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.project-frame {
+    @apply flex flex-col h-full min-h-0 overflow-hidden;
+}
+.project-header {
+    @apply shrink-0 py-[9px] px-5 bg-(--app-surface);
+}
+.project-header .n-page-header__main,
+.project-header .n-page-header__title {
+    @apply min-w-0 overflow-hidden;
+}
+.project-title {
+    @apply max-w-full text-base font-semibold;
+}
+.project-notices.n-scrollbar {
+    @apply shrink-0 h-auto max-h-[100px] overflow-hidden;
+}
+.project-notices-content {
+    @apply py-2 px-6 grid gap-[5px];
+}
+.project-notices .n-alert {
+    @apply py-[7px] px-3 text-xs;
+}
+.project-view {
+    @apply flex-1 min-h-0 overflow-hidden;
+}
+.project-header .n-page-header-wrapper {
+    @apply min-w-0;
+}
+.project-access-gate {
+    @apply h-full;
+}
+.workspace-loading {
+    @apply grid place-content-center h-full;
+}
+@media (max-width: 760px) {
+    .project-header {
+        @apply py-2 px-3;
+    }
+    .project-title {
+        @apply text-sm;
+    }
+}
+</style>
diff --git a/src/features/projects/ProjectsPage.vue b/src/features/projects/ProjectsPage.vue
index c3c634c..bd0888f 100644
--- a/src/features/projects/ProjectsPage.vue
+++ b/src/features/projects/ProjectsPage.vue
@@ -140,3 +140,73 @@ function clearFilters() {
         </p>
     </WorkspacePage>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.page-heading {
+    @apply flex items-center justify-between gap-6 mb-7;
+}
+.page-heading h1 {
+    @apply mt-[9px] mx-0 mb-0 text-[27px] font-semibold tracking-[-0.035em] leading-[1.4];
+}
+.page-description {
+    @apply mt-[9px] text-muted text-xs leading-[1.7];
+}
+@media (max-width: 760px) {
+    .page-heading {
+        @apply items-start flex-col gap-4;
+    }
+    .page-heading h1 {
+        @apply text-[23px];
+    }
+}
+.project-table-area {
+    @apply flex-1 min-h-0;
+}
+.project-data-table {
+    @apply h-full;
+}
+.project-data-table .n-data-table-base-table {
+    @apply flex-1 min-h-0;
+}
+.project-index-heading {
+    @apply m-0;
+}
+.project-index-heading h1 {
+    @apply text-[22px] font-semibold;
+}
+.project-index-toolbar {
+    @apply flex items-center justify-between flex-wrap gap-3 mb-1;
+}
+.project-search {
+    @apply w-[240px];
+}
+.project-status-filters.n-radio-group {
+    @apply flex flex-wrap h-auto min-h-(--n-height) gap-y-1 gap-x-px;
+}
+.project-status-filters .n-radio-group__splitor {
+    @apply hidden;
+}
+.project-status-filters .n-radio-button {
+    @apply min-w-[76px] px-[18px] text-center;
+}
+.project-name-cell {
+    @apply block min-w-0;
+}
+.project-name-cell strong,
+.project-name-cell small {
+    @apply block overflow-hidden text-ellipsis whitespace-nowrap;
+}
+.project-name-cell small {
+    @apply text-muted mt-1 text-[11px];
+}
+@media (max-width: 760px) {
+    .project-search {
+        @apply w-full;
+    }
+    .project-index-toolbar .n-radio-group {
+        @apply w-full;
+    }
+}
+</style>
diff --git a/src/features/storyboard/StoryboardPage.vue b/src/features/storyboard/StoryboardPage.vue
index 6169ee2..322b114 100644
--- a/src/features/storyboard/StoryboardPage.vue
+++ b/src/features/storyboard/StoryboardPage.vue
@@ -418,3 +418,73 @@ watch(
         ></WorkspacePage
     >
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.storyboard-controls {
+    @apply grid grid-cols-[minmax(180px,_1fr)_100px_145px_auto] gap-[18px] items-end;
+}
+.generation-row {
+    @apply flex items-center justify-between gap-5 pt-5 mt-5;
+}
+.generation-row > div:last-child {
+    @apply shrink-0;
+}
+.storyboard-workspace {
+    @apply grid grid-cols-[220px_minmax(0,_1fr)] overflow-hidden;
+}
+.shot-list {
+    @apply max-h-[1000px] overflow-hidden bg-(--app-surface) pt-0 px-2 pb-5;
+}
+@media (max-width: 1200px) {
+    .generation-row {
+        @apply items-start flex-col gap-3;
+    }
+    .storyboard-controls {
+        @apply grid-cols-[minmax(0,_1fr)_minmax(0,_1fr)];
+    }
+}
+@media (max-width: 760px) {
+    .storyboard-controls {
+        @apply grid-cols-[minmax(0,_1fr)] gap-3;
+    }
+    .storyboard-workspace {
+        @apply grid-cols-[minmax(0,_1fr)];
+    }
+    .shot-list {
+        @apply max-h-[240px];
+        border-right: 0;
+    }
+}
+.storyboard-workspace-page .storyboard-workspace {
+    @apply flex-1 h-auto min-h-0 overflow-hidden;
+}
+.storyboard-coverage {
+    @apply shrink-0;
+}
+.storyboard-workspace {
+    @apply grid-cols-[clamp(240px,_22%,_280px)_minmax(0,_1fr)];
+}
+.storyboard-workspace {
+    @apply h-[clamp(360px,65dvh,850px)] min-h-0;
+}
+.storyboard-workspace > article,
+.storyboard-workspace .shot-list {
+    @apply overflow-hidden min-h-0 h-full max-h-none;
+}
+.shot-list-content {
+    @apply gap-3 pt-0 px-0 pb-3;
+}
+.shot-list {
+    @apply p-0;
+}
+@media (max-width: 760px) {
+    .storyboard-workspace {
+        @apply grid-cols-[minmax(0,_1fr)] grid-rows-[184px_minmax(0,_1fr)];
+    }
+    .storyboard-controls {
+        @apply grid-cols-[minmax(0,_1fr)_minmax(0,_1fr)];
+    }
+}
+</style>
diff --git a/src/features/storyboard/components/BeatShotDirectory.vue b/src/features/storyboard/components/BeatShotDirectory.vue
index 3af228b..06d0297 100644
--- a/src/features/storyboard/components/BeatShotDirectory.vue
+++ b/src/features/storyboard/components/BeatShotDirectory.vue
@@ -55,3 +55,35 @@ const groups = computed(() => {
         </div>
     </div>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../../styles/styles.css";
+.directory-group-heading {
+    @apply sticky top-0 z-[1] flex items-center justify-between gap-3 shrink-0 py-2.5 px-3.5 bg-(--app-control) font-mono font-semibold text-[11px] leading-[1.6] text-ink;
+}
+.directory-group-count {
+    @apply font-normal text-muted;
+}
+.beat-directory-group {
+    @apply min-w-0;
+}
+.beat-directory-items {
+    @apply flex flex-col;
+}
+.directory-mobile-beat {
+    @apply hidden;
+}
+@media (max-width: 760px) {
+    .directory-group-heading {
+        @apply hidden;
+    }
+    .beat-directory-group,
+    .beat-directory-items {
+        display: contents;
+    }
+    .directory-mobile-beat {
+        display: inline;
+    }
+}
+</style>
diff --git a/src/features/storyboard/components/ShotTools.vue b/src/features/storyboard/components/ShotTools.vue
index c13ceda..39602c7 100644
--- a/src/features/storyboard/components/ShotTools.vue
+++ b/src/features/storyboard/components/ShotTools.vue
@@ -214,3 +214,20 @@ function exportResult(kind: 'spec' | 'prompt') {
         </section>
     </div>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../../styles/styles.css";
+.alert {
+    @apply py-3 px-[15px] rounded-none bg-(--app-subtle) text-ink text-xs leading-[1.8] wrap-anywhere;
+}
+.reference-grid {
+    @apply grid grid-cols-[repeat(auto-fill,_minmax(150px,_1fr))] gap-3.5;
+}
+.reference-card {
+    @apply bg-(--app-subtle) rounded-none overflow-hidden;
+}
+.storyboard-json {
+    @apply p-4 rounded-none bg-(--app-subtle) font-mono text-[11px] leading-[1.9];
+}
+</style>
diff --git a/src/features/subject-identity/SubjectIdentityPage.vue b/src/features/subject-identity/SubjectIdentityPage.vue
index 93f9a6c..ccb0e53 100644
--- a/src/features/subject-identity/SubjectIdentityPage.vue
+++ b/src/features/subject-identity/SubjectIdentityPage.vue
@@ -621,3 +621,117 @@ watch(
             @generate="generateCastingCandidate"
     /></WorkspacePage>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.identity-workspace {
+    @apply grid grid-cols-[240px_minmax(0,_1fr)] items-start gap-5;
+}
+.identity-subject-list {
+    @apply max-h-[560px] overflow-hidden;
+}
+.casting-stats {
+    @apply grid grid-cols-[repeat(5,_minmax(0,_1fr))] gap-2.5;
+}
+.casting-stats div {
+    @apply py-2.5 px-3 rounded-none bg-(--app-subtle);
+}
+.casting-stats dt {
+    @apply text-muted text-[10px];
+}
+.casting-stats dd {
+    @apply mt-[5px] font-mono text-[13px];
+}
+@media (max-width: 900px) {
+    .identity-workspace {
+        @apply grid-cols-[minmax(0,_1fr)];
+    }
+    .identity-subject-list {
+        @apply max-h-[220px];
+    }
+    .casting-stats {
+        @apply grid-cols-[repeat(2,_minmax(0,_1fr))];
+    }
+}
+.toolbar-type-filter {
+    @apply w-[152px];
+}
+.identity-tools-intro {
+    @apply mb-6;
+}
+.identity-workspace {
+    @apply flex-1 min-h-0 items-stretch overflow-hidden;
+}
+.identity-workspace {
+    @apply grid-cols-[clamp(240px,_22%,_280px)_minmax(0,_1fr)];
+}
+.identity-workspace > div {
+    @apply min-h-0 overflow-hidden overscroll-contain;
+}
+.identity-subject-list {
+    @apply max-h-none min-h-0 flex-1;
+}
+.directory-filters {
+    @apply grid gap-2.5 pt-0 px-3 pb-3 shrink-0;
+}
+.directory-filters > * {
+    @apply min-w-0;
+}
+.identity-subject-list-content {
+    @apply gap-0.5 pt-0 px-0 pb-2;
+}
+.n-button.identity-subject-item {
+    @apply min-h-[86px] py-2.5 px-3.5;
+}
+.n-button.identity-subject-item:not(.selected) {
+    @apply bg-(--app-surface);
+}
+.n-button.identity-subject-item:not(.selected):hover {
+    @apply bg-(--app-subtle);
+}
+.identity-subject-item .directory-item-body {
+    @apply gap-[3px];
+}
+.identity-subject-item .directory-item-title {
+    @apply order-0 text-sm font-semibold;
+}
+.identity-subject-item .directory-item-eyebrow {
+    @apply order-1 text-[10px];
+}
+.identity-subject-item .directory-item-meta {
+    @apply order-2 gap-y-1 gap-x-1.5 text-[10px];
+}
+.casting-list {
+    @apply grid grid-cols-[repeat(auto-fit,_minmax(min(100%,_260px),_1fr))] gap-3 mt-6 pt-5;
+}
+.n-button.casting-item {
+    @apply w-full min-w-0 h-auto min-h-[76px] py-3 px-3.5 whitespace-normal text-left bg-(--app-subtle);
+}
+.n-button.casting-item.selected {
+    @apply bg-(--app-selected) shadow-[inset_3px_0_0_var(--app-accent)];
+}
+.n-button.casting-item .n-button__content {
+    @apply flex w-full min-w-0 items-center justify-between gap-4 text-left;
+}
+.casting-item-identity {
+    @apply flex flex-col gap-[5px] min-w-0;
+}
+.casting-item-name {
+    @apply text-sm font-medium leading-normal wrap-anywhere;
+}
+.casting-item-ref {
+    @apply text-muted font-mono text-[11px] leading-normal wrap-anywhere;
+}
+.casting-item-status {
+    @apply shrink-0;
+}
+@media (max-width: 760px) {
+    .identity-workspace {
+        @apply grid-cols-[minmax(0,_1fr)] grid-rows-[250px_minmax(0,_1fr)] gap-2.5;
+    }
+    .directory-filters {
+        @apply grid-cols-[minmax(0,_1fr)_120px];
+    }
+}
+</style>
diff --git a/src/features/subject-identity/components/IdentityThumbnail.vue b/src/features/subject-identity/components/IdentityThumbnail.vue
index 024b929..3742c51 100644
--- a/src/features/subject-identity/components/IdentityThumbnail.vue
+++ b/src/features/subject-identity/components/IdentityThumbnail.vue
@@ -105,3 +105,18 @@ watch(
         </span>
     </span>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../../styles/styles.css";
+.identity-thumbnail {
+    @apply flex w-12 h-[64px] overflow-hidden bg-(--app-subtle);
+}
+.identity-thumbnail .n-image,
+.identity-thumbnail .n-image img {
+    @apply w-full h-full;
+}
+.identity-thumbnail-placeholder {
+    @apply flex flex-col items-center justify-center w-full h-full gap-[5px] text-muted text-[10px];
+}
+</style>
diff --git a/src/features/subject-images/SubjectImagesPage.vue b/src/features/subject-images/SubjectImagesPage.vue
index 8b57228..a3baf4a 100644
--- a/src/features/subject-images/SubjectImagesPage.vue
+++ b/src/features/subject-images/SubjectImagesPage.vue
@@ -739,3 +739,118 @@ async function showStaleForms() {
                 @changed="refreshAssets" /></template
     ></WorkspacePage>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.form-image-grid {
+    @apply grid grid-cols-[repeat(auto-fill,_minmax(min(260px,_100%),_1fr))] gap-5;
+}
+.form-image-card {
+    @apply overflow-hidden;
+}
+.gallery-workspace-page .workspace-scroll-content {
+    @apply pt-2;
+}
+.gallery-workspace-page .gallery-sticky-controls {
+    @apply sticky top-0 z-10 bg-(--app-body) mt-2.5 mb-0;
+}
+.gallery-workspace-page .form-image-grid {
+    @apply pt-3;
+}
+.gallery-workspace-page .form-image-masonry {
+    @apply block columns-[260px] gap-x-5;
+}
+.form-image-masonry > .form-image-card {
+    @apply break-inside-avoid mb-5;
+}
+.form-image-masonry .asset-image {
+    @apply aspect-[var(--form-image-aspect,4/3)];
+}
+.gallery-sticky-controls > .form-image-filter-region {
+    @apply my-0;
+}
+.gallery-workspace-page .workspace-scroll > .n-scrollbar-container {
+    @apply [overflow-anchor:none];
+}
+.form-image-filter-region {
+    @apply my-4 py-3.5 px-4 bg-(--app-subtle);
+    container-type: inline-size;
+}
+.form-image-toolbar {
+    @apply grid grid-cols-[minmax(0,_1fr)] items-center gap-y-3 gap-x-4;
+}
+.form-image-toolbar.has-impact-picker {
+    @apply grid-cols-[minmax(220px,_340px)_minmax(0,_1fr)];
+}
+.form-image-toolbar.has-impact-picker.has-impact-actions {
+    @apply grid-cols-[minmax(260px,_420px)_minmax(0,_1fr)];
+}
+.asset-impact-picker {
+    @apply flex items-center gap-2 min-w-0;
+}
+.asset-impact-picker .asset-impact-select {
+    @apply flex-1;
+}
+.form-image-toolbar > * {
+    @apply min-w-0;
+}
+.form-image-filters {
+    @apply grid grid-cols-[minmax(200px,_360px)_152px_minmax(260px,_1fr)_auto] items-center gap-y-3 gap-x-4;
+}
+.form-image-filters > * {
+    @apply min-w-0;
+}
+.filter-toggles {
+    @apply flex items-center flex-wrap gap-y-2.5 gap-x-4 text-xs;
+}
+.filter-toggles .n-checkbox__label {
+    @apply whitespace-nowrap;
+}
+.filter-result-count {
+    @apply justify-self-end text-muted text-xs whitespace-nowrap;
+}
+.form-image-display-controls {
+    @apply flex items-center justify-self-end gap-3;
+}
+.gallery-layout-switch {
+    @apply flex items-center gap-1;
+}
+@container (max-width: 1200px) {
+    .form-image-toolbar.has-impact-picker,
+    .form-image-toolbar.has-impact-picker.has-impact-actions {
+        @apply grid-cols-[minmax(0,_1fr)];
+    }
+}
+@container (max-width: 900px) {
+    .form-image-filters {
+        @apply grid-cols-[minmax(0,_1fr)_152px];
+    }
+    .form-image-display-controls {
+        @apply col-[1/-1];
+    }
+}
+@container (max-width: 460px) {
+    .form-image-filters {
+        @apply grid-cols-[minmax(0,_1fr)_120px] gap-x-2.5;
+    }
+}
+.asset-impact-context {
+    @apply flex flex-col gap-2.5 py-[5px] px-4 bg-(--app-subtle) m-0 min-w-0;
+}
+.asset-impact-links-scroll.n-scrollbar {
+    @apply h-auto min-w-0 max-w-full;
+}
+.asset-impact-links {
+    @apply flex items-center gap-3 w-max whitespace-nowrap min-h-8 py-1.5;
+}
+.asset-impact-links > * {
+    @apply shrink-0;
+}
+.asset-impact-select {
+    @apply min-w-0 w-full;
+}
+.form-image-card-focused {
+    @apply shadow-[inset_3px_0_0_var(--app-accent-text)];
+}
+</style>
diff --git a/src/features/visual-style/VisualStylePage.vue b/src/features/visual-style/VisualStylePage.vue
index 115c97b..e76a4a1 100644
--- a/src/features/visual-style/VisualStylePage.vue
+++ b/src/features/visual-style/VisualStylePage.vue
@@ -165,3 +165,26 @@ function removeImage(image: VisualStyleImage) {
             @remove="removeImage"
     /></WorkspacePage>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.visual-style-toolbar {
+    @apply flex items-center justify-between flex-wrap gap-y-4 gap-x-6 my-5 py-3.5 px-4 bg-(--app-subtle);
+}
+.visual-style-status {
+    @apply flex items-center gap-3 min-w-0;
+}
+.visual-style-status > svg {
+    @apply shrink-0 text-muted;
+}
+.visual-style-status strong {
+    @apply text-sm font-medium;
+}
+.visual-style-status p {
+    @apply mt-1 mx-0 mb-0 text-muted text-xs leading-[1.6];
+}
+.visual-style-actions {
+    @apply flex items-center flex-wrap gap-2.5 ml-auto;
+}
+</style>
diff --git a/src/features/workflows/ConfirmAction.vue b/src/features/workflows/ConfirmAction.vue
index 7981f31..566f118 100644
--- a/src/features/workflows/ConfirmAction.vue
+++ b/src/features/workflows/ConfirmAction.vue
@@ -56,3 +56,11 @@ function confirm() {
         </AppDialog>
     </span>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.confirm-action {
+    @apply inline-flex items-center max-w-full;
+}
+</style>
diff --git a/src/features/workflows/HistoryPanel.vue b/src/features/workflows/HistoryPanel.vue
index 6160a2b..d1babf4 100644
--- a/src/features/workflows/HistoryPanel.vue
+++ b/src/features/workflows/HistoryPanel.vue
@@ -54,3 +54,27 @@ const history = computed(() => workflowCheckpoints(props.checkpoints, props.work
         />
     </aside>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.history-panel {
+    @apply py-[23px] px-[21px] bg-(--app-subtle);
+}
+@media (max-width: 1200px) {
+    .history-panel {
+        border-left: 0;
+    }
+}
+.history-panel {
+    @apply p-0;
+}
+.history-content {
+    @apply py-[23px] px-[21px];
+}
+@media (max-width: 760px) {
+    .history-panel {
+        @apply overflow-hidden min-h-0;
+    }
+}
+</style>
diff --git a/src/features/workflows/WorkflowDiagnosticsDialog.vue b/src/features/workflows/WorkflowDiagnosticsDialog.vue
index 169d4b1..ebf5ecb 100644
--- a/src/features/workflows/WorkflowDiagnosticsDialog.vue
+++ b/src/features/workflows/WorkflowDiagnosticsDialog.vue
@@ -161,3 +161,20 @@ function exportReport() {
         />
     </AppDialog>
 </template>
+
+<style>
+/* 本组件专属布局与 Naive 内部结构覆盖。 */
+@reference "../../styles/styles.css";
+.diagnostics-filters {
+    @apply flex flex-wrap items-center gap-3;
+}
+.diagnostics-filters > .n-input {
+    @apply flex-[1_1_240px] min-w-0;
+}
+.diagnostics-filters > .n-select {
+    @apply flex-[0_1_180px] min-w-0;
+}
+.diagnostics-records {
+    @apply grid gap-3 min-w-0;
+}
+</style>
diff --git a/src/main.ts b/src/main.ts
index 6b036a9..8b1d344 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,8 +1,8 @@
 import { createApp } from 'vue'
 import App from './App.vue'
 import { router } from './router'
-import './styles.css'
-import './admin.css'
+import './styles/styles.css'
+import './styles/admin.css'
 
 /** 单页应用入口；不在浏览器保存模型密钥。 */
 createApp(App).use(router).mount('#app')
diff --git a/src/styles.css b/src/styles.css
deleted file mode 100644
index 664edde..0000000
--- a/src/styles.css
+++ /dev/null
@@ -1,781 +0,0 @@
-@import 'tailwindcss';
-
-/* 微信风格明暗主题：灰阶表面搭配绿色操作态，业务排版保持不变。 */
-@theme {
-    --color-ink: var(--app-ink);
-    --color-muted: var(--app-muted);
-    --color-faint: var(--app-muted);
-    --color-line: var(--app-border);
-    --color-accent: var(--app-accent-text);
-    --color-danger: var(--app-danger);
-    --color-success: var(--app-success);
-    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
-}
-
-@layer base {
-    * {
-        box-sizing: border-box;
-    }
-    body {
-        margin: 0;
-        background: var(--app-body);
-        color: var(--color-ink);
-        font-family: var(--font-sans);
-        -webkit-font-smoothing: antialiased;
-    }
-    button,
-    input,
-    textarea,
-    select {
-        font: inherit;
-    }
-    button,
-    a,
-    summary {
-        -webkit-tap-highlight-color: transparent;
-    }
-    button:not(:disabled),
-    summary,
-    select {
-        cursor: pointer;
-    }
-    button:disabled {
-        opacity: 0.45;
-        cursor: not-allowed;
-    }
-    a {
-        text-decoration: none;
-        color: inherit;
-    }
-    :focus-visible {
-        outline: 2px solid var(--color-accent);
-        outline-offset: 3px;
-    }
-    input:focus-visible,
-    textarea:focus-visible,
-    select:focus-visible {
-        outline-offset: 1px;
-    }
-    ::selection {
-        background: var(--app-selected);
-        color: var(--app-ink);
-    }
-}
-
-@layer components {
-    .identity-workspace {
-        display: grid;
-        grid-template-columns: 240px minmax(0, 1fr);
-        align-items: start;
-        gap: 20px;
-    }
-    .identity-subject-list {
-        max-height: 560px;
-        overflow: hidden;
-    }
-    .casting-stats {
-        display: grid;
-        grid-template-columns: repeat(5, minmax(0, 1fr));
-        gap: 10px;
-    }
-    .casting-stats div {
-        padding: 10px 12px;
-        border-radius: 0;
-        background: var(--app-subtle);
-    }
-    .casting-stats dt {
-        color: var(--color-muted);
-        font-size: 10px;
-    }
-    .casting-stats dd {
-        margin-top: 5px;
-        font-family: ui-monospace, monospace;
-        font-size: 13px;
-    }
-    @media (max-width: 900px) {
-        .identity-workspace {
-            grid-template-columns: minmax(0, 1fr);
-        }
-        .identity-subject-list {
-            max-height: 220px;
-        }
-        .casting-stats {
-            grid-template-columns: repeat(2, minmax(0, 1fr));
-        }
-    }
-
-    .page-container {
-        max-width: 1540px;
-        margin-inline: auto;
-        padding: 37px 40px 56px;
-    }
-    .page-heading {
-        display: flex;
-        align-items: center;
-        justify-content: space-between;
-        gap: 24px;
-        margin-bottom: 28px;
-    }
-    .page-heading h1 {
-        margin: 9px 0 0;
-        font-size: 27px;
-        font-weight: 600;
-        letter-spacing: -0.035em;
-        line-height: 1.4;
-    }
-    .eyebrow {
-        font-size: 10px;
-        letter-spacing: 0.11em;
-        color: var(--color-muted);
-        font-weight: 500;
-    }
-    .page-description {
-        margin-top: 9px;
-        color: var(--color-muted);
-        font-size: 12px;
-        line-height: 1.7;
-    }
-    .button {
-        display: inline-flex;
-        align-items: center;
-        justify-content: center;
-        gap: 8px;
-        padding: 9px 14px;
-        min-height: 36px;
-        border: 1px solid transparent;
-        border-radius: 0;
-        font-size: 12px;
-        font-weight: 500;
-        white-space: nowrap;
-        transition:
-            background 0.15s,
-            border-color 0.15s;
-    }
-    .button-primary {
-        background: var(--app-button-primary);
-        color: var(--app-on-accent);
-    }
-    .button-primary:hover:not(:disabled) {
-        background: var(--app-button-hover);
-    }
-    .button-primary:active:not(:disabled) {
-        background: var(--app-button-pressed);
-    }
-    .button:disabled {
-        background: var(--app-disabled-bg);
-        color: var(--app-disabled-text);
-        opacity: 1;
-    }
-    .button-secondary {
-        background: var(--app-control);
-        color: var(--app-ink);
-    }
-    .button-secondary:hover:not(:disabled) {
-        background: var(--app-control-hover);
-    }
-
-    .text-button {
-        display: inline-flex;
-        align-items: center;
-        gap: 6px;
-        font-size: 11px;
-        color: var(--color-muted);
-        padding: 6px 0;
-    }
-    .text-button:hover:not(:disabled) {
-        color: var(--color-accent);
-    }
-    .panel {
-        --app-field: var(--app-control);
-        --app-field-hover: var(--app-control-hover);
-        background: var(--app-surface);
-        border-radius: 0;
-    }
-
-    /* 次级信息用低对比底色成组，避免用边框把工作台切成碎片。 */
-    .surface-inset {
-        --app-field: var(--app-surface);
-        --app-field-hover: var(--app-surface);
-        background: var(--app-subtle);
-    }
-    /* 首项与其它条目统一内边距；背景过渡仅用于主题切换，不随鼠标或焦点变化。 */
-    .record-list > article {
-        padding: 20px;
-        transition: background-color 160ms ease;
-    }
-    .record-list > article:nth-child(even) {
-        background: var(--app-subtle);
-    }
-    /* 主体奇数行常驻原悬停底色，与偶数行形成固定斑马纹；内部控件仍保留交互反馈。 */
-    .subject-record-list > article:nth-child(odd) {
-        background: var(--app-control);
-    }
-    /* 形态块与所在主体条纹使用相反灰阶，避免偶数行内外同色；不增加边框或悬停态。 */
-    .subject-form-card {
-        margin-top: 12px;
-        padding: 16px;
-        min-width: 0;
-        overflow-wrap: anywhere;
-        background: var(--app-subtle);
-    }
-    .subject-record-list > article:nth-child(even) .subject-form-card {
-        background: var(--app-control);
-    }
-
-    .table-scroll {
-        overflow: hidden;
-    }
-    .project-table {
-        width: 100%;
-        border-collapse: collapse;
-        text-align: left;
-        font-size: 12px;
-    }
-    .project-table th {
-        padding: 13px 20px;
-        background: var(--app-control);
-        color: var(--color-muted);
-        font-size: 10px;
-        font-weight: 500;
-        white-space: nowrap;
-    }
-    .project-table td {
-        padding: 21px 20px;
-    }
-    .project-table tr:last-child td {
-        border-bottom: none;
-    }
-    .project-table tbody tr:nth-child(even) td {
-        background: var(--app-subtle);
-    }
-    .project-table tbody tr:hover td {
-        background: var(--app-selected);
-    }
-
-    .production-controls {
-        display: grid;
-        grid-template-columns: minmax(220px, 1.6fr) minmax(110px, 0.5fr) minmax(230px, 1fr) auto;
-        align-items: end;
-        gap: 18px;
-    }
-    .production-pipeline {
-        display: grid;
-        grid-template-columns: repeat(3, minmax(0, 1fr));
-        gap: 14px;
-    }
-    .production-pipeline-card {
-        padding: 20px;
-    }
-    .production-step {
-        display: grid;
-        place-items: center;
-        width: 36px;
-        height: 36px;
-        flex-shrink: 0;
-        border-radius: 0;
-        background: var(--app-subtle);
-        color: var(--app-ink);
-    }
-    .production-stats {
-        display: grid;
-        grid-template-columns: repeat(3, 1fr);
-        gap: 8px;
-    }
-    .production-stats div,
-    .production-status-grid div {
-        padding: 10px;
-        border-radius: 0;
-        background: var(--app-subtle);
-    }
-    .production-stats dt,
-    .production-status-grid dt {
-        color: var(--color-muted);
-        font-size: 10px;
-    }
-    .production-stats dd,
-    .production-status-grid dd {
-        margin-top: 5px;
-        font-size: 13px;
-        font-family: ui-monospace, monospace;
-    }
-    .production-status-grid {
-        display: grid;
-        grid-template-columns: repeat(5, minmax(0, 1fr));
-        gap: 10px;
-    }
-    .production-workspace {
-        display: grid;
-        grid-template-columns: 220px minmax(0, 1fr);
-        align-items: start;
-        overflow: hidden;
-    }
-    .production-shot-list {
-        max-height: 760px;
-        overflow: hidden;
-        background: var(--app-surface);
-        padding-block: 8px;
-    }
-    .production-stage {
-        padding: 20px 0;
-    }
-    .production-stage:first-of-type {
-        border-top: none;
-    }
-    .production-stage-heading {
-        display: flex;
-        align-items: flex-start;
-        justify-content: space-between;
-        gap: 16px;
-    }
-    .keyframe-grid {
-        display: grid;
-        grid-template-columns: repeat(3, minmax(0, 1fr));
-        gap: 12px;
-    }
-    .keyframe-card {
-        overflow: hidden;
-        border-radius: 0;
-        background: var(--app-subtle);
-    }
-    .keyframe-card .asset-image {
-        aspect-ratio: 16 / 9;
-        border-radius: 0;
-    }
-    .video-record {
-        display: flex;
-        overflow: hidden;
-        border-radius: 0;
-        background: var(--app-subtle);
-    }
-    .production-video {
-        width: min(44%, 390px);
-        min-height: 170px;
-        background: var(--app-ink);
-        object-fit: contain;
-    }
-
-    @media (max-width: 1100px) {
-        .production-pipeline {
-            grid-template-columns: 1fr;
-        }
-        .production-controls {
-            grid-template-columns: repeat(2, minmax(0, 1fr));
-        }
-    }
-    @media (max-width: 760px) {
-        .production-controls,
-        .production-workspace {
-            grid-template-columns: minmax(0, 1fr);
-        }
-        .production-shot-list {
-            display: flex;
-            max-height: none;
-            overflow: hidden;
-            border-right: none;
-        }
-        .production-status-grid,
-        .keyframe-grid {
-            grid-template-columns: repeat(2, minmax(0, 1fr));
-        }
-        .video-record {
-            display: block;
-        }
-        .production-video {
-            width: 100%;
-        }
-    }
-    .empty-state {
-        display: flex;
-        flex-direction: column;
-        align-items: center;
-        justify-content: center;
-        min-height: 300px;
-        padding: 52px 24px;
-        text-align: center;
-    }
-
-    .dialog-footer {
-        display: flex;
-        justify-content: flex-end;
-        gap: 10px;
-        padding-top: 20px;
-    }
-    .field-label {
-        display: block;
-        margin-bottom: 9px;
-        font-size: 12px;
-        font-weight: 500;
-        color: var(--app-ink);
-    }
-    .input {
-        width: 100%;
-        background: var(--app-field);
-        color: var(--color-ink);
-        border-radius: 0;
-        padding: 9px 11px;
-        font-size: 12px;
-        line-height: 1.7;
-    }
-    .input::placeholder {
-        color: var(--app-muted);
-    }
-    .input:disabled {
-        background: var(--app-subtle);
-        opacity: 0.6;
-    }
-    .alert {
-        padding: 12px 15px;
-        border-radius: 0;
-        background: var(--app-subtle);
-        color: var(--app-ink);
-        font-size: 12px;
-        line-height: 1.8;
-        overflow-wrap: anywhere;
-    }
-    .alert-error {
-        background: var(--app-subtle);
-        color: var(--app-danger);
-    }
-
-    .stage-strip {
-        display: flex;
-        flex-wrap: wrap;
-        align-items: center;
-        gap: 14px;
-    }
-    .stage-item {
-        display: flex;
-        align-items: center;
-        gap: 7px;
-        color: var(--app-muted);
-        font-size: 11px;
-    }
-    .stage-item.done {
-        color: var(--app-ink);
-    }
-    .stage-arrow {
-        margin-left: 12px;
-        color: var(--app-muted);
-    }
-
-    .content-with-history {
-        display: grid;
-        grid-template-columns: minmax(0, 1fr) 207px;
-        min-height: 480px;
-        overflow: hidden;
-    }
-    .history-panel {
-        padding: 23px 21px;
-        background: var(--app-subtle);
-    }
-
-    .form-image-grid {
-        display: grid;
-        grid-template-columns: repeat(auto-fill, minmax(min(260px, 100%), 1fr));
-        gap: 20px;
-    }
-    .form-image-card {
-        overflow: hidden;
-    }
-    .asset-image {
-        display: grid;
-        place-items: center;
-        width: 100%;
-        aspect-ratio: 4 / 3;
-        overflow: hidden;
-        background: var(--app-subtle);
-    }
-    .asset-image img {
-        width: 100%;
-        height: 100%;
-        min-height: 0;
-    }
-    .asset-image-empty {
-        display: flex;
-        align-items: center;
-        justify-content: center;
-        flex-direction: column;
-        gap: 10px;
-        padding: 20px;
-        color: var(--color-muted);
-        font-size: 11px;
-        text-align: center;
-    }
-    .image-history {
-        overflow: hidden;
-    }
-    .image-history-item .asset-image-empty {
-        font-size: 9px;
-        padding: 6px;
-        gap: 4px;
-    }
-    .image-history-item .asset-image-empty svg {
-        width: 14px;
-        height: 14px;
-    }
-    .storyboard-controls {
-        display: grid;
-        grid-template-columns: minmax(180px, 1fr) 100px 145px auto;
-        gap: 18px;
-        align-items: end;
-    }
-    .generation-row {
-        display: flex;
-        align-items: center;
-        justify-content: space-between;
-        gap: 20px;
-        padding-top: 20px;
-        margin-top: 20px;
-    }
-    .generation-row > div:last-child {
-        flex-shrink: 0;
-    }
-    .storyboard-workspace {
-        display: grid;
-        grid-template-columns: 220px minmax(0, 1fr);
-        overflow: hidden;
-    }
-    .shot-list {
-        max-height: 1000px;
-        overflow: hidden;
-        background: var(--app-surface);
-        padding: 0 8px 20px;
-    }
-    .reference-grid {
-        display: grid;
-        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
-        gap: 14px;
-    }
-    .reference-card {
-        background: var(--app-subtle);
-        border-radius: 0;
-        overflow: hidden;
-    }
-    .reference-placeholder {
-        display: grid;
-        place-items: center;
-        aspect-ratio: 4 / 3;
-        font-size: 11px;
-        color: var(--color-muted);
-        background: var(--app-subtle);
-    }
-    .storyboard-json {
-        padding: 16px;
-        border-radius: 0;
-        background: var(--app-subtle);
-        font:
-            11px/1.9 ui-monospace,
-            monospace;
-    }
-    .script-summary {
-        font-size: 12px;
-        color: var(--color-muted);
-        line-height: 1.9;
-        padding: 17px 0 22px;
-        margin-bottom: 23px;
-    }
-    .script-body {
-        white-space: pre-wrap;
-        overflow-wrap: anywhere;
-        font-size: 14px;
-        line-height: 2.15;
-        color: var(--app-ink);
-    }
-    .script-notes {
-        margin-top: 36px;
-        padding-top: 20px;
-        font-size: 12px;
-    }
-    .script-notes dt {
-        color: var(--app-ink);
-        font-weight: 500;
-        margin-bottom: 6px;
-    }
-    .script-notes dd {
-        color: var(--color-muted);
-        line-height: 1.8;
-        margin-bottom: 15px;
-    }
-    .detail-grid {
-        display: grid;
-        grid-template-columns: 70px minmax(0, 1fr);
-        gap: 15px;
-        font-size: 12px;
-        line-height: 1.9;
-    }
-    .detail-grid dt {
-        color: var(--color-muted);
-    }
-    .detail-grid dd {
-        white-space: pre-wrap;
-        overflow-wrap: anywhere;
-    }
-    .json-view {
-        white-space: pre-wrap;
-        overflow-wrap: anywhere;
-        padding: 16px;
-        background: var(--app-subtle);
-        border-radius: 0;
-        font:
-            11px/1.9 ui-monospace,
-            monospace;
-    }
-
-    .group-preview {
-        margin-top: 24px;
-        padding-top: 20px;
-    }
-    .group-chip {
-        display: flex;
-        align-items: center;
-        gap: 10px;
-        background: var(--app-subtle);
-        border-radius: 0;
-        padding: 8px 11px;
-        font-size: 11px;
-    }
-    .recovery-strip {
-        background: var(--app-subtle);
-        display: flex;
-        justify-content: space-between;
-        flex-wrap: wrap;
-        align-items: center;
-        gap: 15px;
-        padding: 17px;
-        border-radius: 0;
-    }
-    .subject-ref {
-        display: inline-flex;
-        background: var(--app-subtle);
-        padding: 3px 6px;
-        border-radius: 0;
-        color: var(--app-ink);
-        font-size: 10px;
-    }
-    .subject-details summary {
-        display: inline-flex;
-        align-items: center;
-        gap: 5px;
-        color: var(--app-ink);
-        font-size: 11px;
-        list-style: none;
-    }
-    .subject-details summary::-webkit-details-marker {
-        display: none;
-    }
-    .subject-details[open] summary svg {
-        transform: rotate(180deg);
-    }
-    .beat-section {
-        margin-top: 25px;
-        padding-top: 23px;
-    }
-    .beat-heading {
-        display: flex;
-        align-items: center;
-        gap: 10px;
-    }
-    .beat-number {
-        color: var(--app-muted);
-        font:
-            11px ui-monospace,
-            monospace;
-    }
-    .shot-row {
-        display: flex;
-        gap: 17px;
-        padding: 17px;
-        border-radius: 0;
-        background: var(--app-subtle);
-    }
-    .shot-label {
-        flex-shrink: 0;
-        width: 47px;
-        font-size: 10px;
-        color: var(--app-muted);
-    }
-    .skip-link {
-        position: fixed;
-        z-index: 100;
-        top: -80px;
-        left: 15px;
-        padding: 10px 15px;
-        background: var(--app-surface);
-        border: 1px solid var(--color-accent);
-    }
-    .skip-link:focus {
-        top: 10px;
-    }
-}
-
-/* 中等宽度保留正文空间，执行记录下移，移动端导航收为图标。 */
-@media (max-width: 1200px) {
-    .generation-row {
-        align-items: flex-start;
-        flex-direction: column;
-        gap: 12px;
-    }
-    .storyboard-controls {
-        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
-    }
-    .page-container {
-        padding-inline: 26px;
-    }
-
-    .content-with-history {
-        grid-template-columns: minmax(0, 1fr);
-    }
-    .history-panel {
-        border-left: 0;
-    }
-}
-@media (max-width: 760px) {
-    .storyboard-controls {
-        grid-template-columns: minmax(0, 1fr);
-        gap: 12px;
-    }
-    .storyboard-workspace {
-        grid-template-columns: minmax(0, 1fr);
-    }
-    .shot-list {
-        max-height: 240px;
-        border-right: 0;
-    }
-
-    .page-container {
-        padding: 25px 18px 40px;
-    }
-
-    .page-heading {
-        align-items: flex-start;
-        flex-direction: column;
-        gap: 16px;
-    }
-    .page-heading h1 {
-        font-size: 23px;
-    }
-
-    .stage-strip {
-        gap: 9px;
-    }
-    .stage-arrow {
-        margin-left: 3px;
-    }
-
-    .project-table td,
-    .project-table th {
-        padding-inline: 14px;
-    }
-    .shot-row {
-        gap: 12px;
-        padding: 13px;
-    }
-}
-@media (prefers-reduced-motion: reduce) {
-    *,
-    *::before,
-    *::after {
-        animation-duration: 0.01ms !important;
-        transition-duration: 0.01ms !important;
-    }
-}
diff --git a/src/styles/admin.css b/src/styles/admin.css
new file mode 100644
index 0000000..c2df976
--- /dev/null
+++ b/src/styles/admin.css
@@ -0,0 +1,433 @@
+/* 管理后台视口边界：document 不滚动，各个工作区和面板独立滚动。 */
+:root {
+    --app-ink: #191919;
+    --app-muted: #707070;
+    --app-body: #ededed;
+    --app-surface: #ffffff;
+    --app-subtle: #f7f7f7;
+    --app-control: #f0f0f0;
+    --app-control-hover: #e5e5e5;
+    --app-field: #ffffff;
+    --app-field-hover: #ffffff;
+    --app-border: #e5e5e5;
+    --app-inverse: #ffffff;
+    --app-accent: #07c160;
+    --app-accent-hover: #2dcb79;
+    --app-accent-text: #087c42;
+    --app-on-accent: #ffffff;
+    --app-button-primary: #078640;
+    --app-button-hover: #087c42;
+    --app-button-pressed: #066b36;
+    --app-disabled-bg: #e4e4e4;
+    --app-disabled-text: #8c8c8c;
+    --app-selected: #e4f4e9;
+    --app-shadow: #00000018;
+    --app-danger: #a93232;
+    --app-success: #087c42;
+}
+:root[data-theme='dark'] {
+    --app-ink: #d9d9d9;
+    --app-muted: #a3a3a3;
+    --app-body: #111111;
+    --app-surface: #191919;
+    --app-subtle: #232323;
+    --app-control: #2b2b2b;
+    --app-control-hover: #353535;
+    --app-field: #2b2b2b;
+    --app-field-hover: #353535;
+    --app-disabled-bg: #303030;
+    --app-disabled-text: #808080;
+    --app-border: #333333;
+    --app-inverse: #111111;
+    --app-accent-text: #5cd693;
+    --app-selected: #173527;
+    --app-shadow: #00000055;
+    --app-danger: #fa7373;
+    --app-success: #5cd693;
+}
+html,
+body,
+#app,
+.app-provider {
+    height: 100%;
+    min-height: 0;
+    overflow: hidden;
+}
+html {
+    background: var(--app-body);
+}
+body {
+    margin: 0;
+}
+/* 外壳固定品牌与底部设置；只有菜单自身使用 NScrollbar 滚动。 */
+/* Naive 菜单背景默认左右内缩 8px；只铺满导航行，不改图标与文字缩进。 */
+/* 按钮保持直角，单图标按钮以 Naive 当前尺寸为边长，加载时也不改变宽度。 */
+.n-button {
+    border-radius: 0;
+}
+.n-button.icon-button {
+    width: var(--n-height);
+    min-width: var(--n-height);
+    height: var(--n-height);
+    padding: 0;
+    flex: 0 0 auto;
+}
+.n-button.icon-button .n-button__icon {
+    margin: 0;
+}
+.n-button:focus-visible {
+    outline: 2px solid var(--app-accent-text);
+    outline-offset: 2px;
+}
+/* 标题移除额外按钮后让名称使用剩余空间；未完成项目的引导仍留在内容区。 */
+/* 常用工具固定在滚动区外；低频操作使用局部抽屉，不叠加占高面板。 */
+.workspace-toolbar {
+    display: flex;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 8px 16px;
+    min-height: 34px;
+}
+.toolbar-episode {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    flex: 0 1 340px;
+    min-width: 180px;
+    font-size: 12px;
+}
+.toolbar-episode .n-select {
+    min-width: 0;
+}
+.toolbar-metrics,
+.toolbar-summary {
+    display: flex;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 8px 16px;
+    color: var(--app-muted);
+    font-size: 12px;
+    line-height: 1.6;
+}
+.toolbar-actions {
+    display: flex;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 10px;
+    margin-left: auto;
+}
+/* 身份说明与折叠入口分开，避免正文紧贴下一组操作。 */
+/* 与 34px 中号输入框共用一行；不再通过 pb-2 / pb-3 手动垫高复选框。 */
+.n-checkbox.control-row-checkbox {
+    align-self: end;
+    align-items: center;
+    min-height: 34px;
+    padding-block: 0;
+}
+.control-row-checkbox .n-checkbox-box-wrapper {
+    align-self: center;
+}
+/* 拆解配置跟随抽屉实际宽度；标题 20px + 间距 8px，下方统一使用 34px 控件行。 */
+/* 筛选与关联行整体吸顶，底部不留固定分隔带；列表自己的顶部间距随内容滚走。 */
+/* 使用成熟的多列排版实现瀑布流；完整卡片不跨列，窄容器自动减少列数。 */
+.workspace-feedback.n-scrollbar {
+    flex-shrink: 0;
+    height: auto;
+    max-height: min(24dvh, 160px);
+    overflow: hidden;
+}
+.workspace-feedback .n-alert + .n-alert {
+    margin-top: 8px;
+}
+.overview-content {
+    padding-bottom: 8px;
+}
+/* 目录统一为固定标题／筛选区和独立滚动列表；不再依赖按钮的默认行高与内边距。 */
+.directory-panel {
+    --app-field: var(--app-surface);
+    --app-field-hover: var(--app-surface);
+    display: flex;
+    flex-direction: column;
+    min-width: 0;
+    min-height: 0;
+    padding: 0;
+    overflow: hidden;
+    background: var(--app-subtle);
+}
+.directory-heading {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    flex-wrap: wrap;
+    flex-shrink: 0;
+    gap: 8px;
+    padding: 18px 16px 14px;
+    font-size: 11px;
+    color: var(--app-muted);
+}
+.directory-heading h3 {
+    font-size: 13px;
+    font-weight: 600;
+    color: var(--app-ink);
+}
+.directory-heading h3 span {
+    margin-left: 8px;
+    font-size: 11px;
+    font-weight: 400;
+    color: var(--app-muted);
+}
+.directory-scroll {
+    flex: 1;
+}
+.directory-list-content {
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+    padding: 8px 0 16px;
+}
+/* 可选前导内容用于主体母版，不改变剧集与镜头目录的原有排版。 */
+.directory-status {
+    display: inline-flex;
+    align-items: center;
+    gap: 5px;
+    padding: 1px 5px;
+    border-radius: 0;
+    background: var(--app-control);
+}
+.directory-status svg {
+    flex-shrink: 0;
+}
+/* 标签与操作由同一 NTabs 导航行管理，suffix 共享底线及垂直中心。 */
+.tabs-toolbar {
+    container: tabs-toolbar / inline-size;
+    width: 100%;
+    min-width: 0;
+}
+.workspace-tabs.n-tabs {
+    width: 100%;
+    min-width: 0;
+}
+.workspace-tabs > .n-tabs-nav {
+    align-items: stretch;
+}
+.workspace-tabs .n-tabs-tab {
+    min-height: 40px;
+    box-sizing: border-box;
+}
+.workspace-tabs .n-tabs-nav-scroll-wrapper {
+    min-width: 0;
+}
+.workspace-tabs .n-tabs-nav__suffix {
+    align-items: center;
+    flex-shrink: 0;
+    padding-left: 20px;
+}
+.tabs-toolbar-actions {
+    display: flex;
+    align-items: center;
+    justify-content: flex-end;
+    flex-wrap: wrap;
+    gap: 4px 14px;
+    min-height: 40px;
+}
+.tabs-toolbar-actions .n-button,
+.tabs-toolbar-actions .text-button {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    height: 32px;
+    white-space: nowrap;
+}
+/* 窄内容区允许 suffix 独占一行；Tabs 本身继续使用组件内置横向滚动。 */
+@container tabs-toolbar (max-width: 600px) {
+    .workspace-tabs > .n-tabs-nav {
+        flex-wrap: wrap;
+    }
+    .workspace-tabs .n-tabs-nav-scroll-wrapper {
+        flex-basis: 100%;
+    }
+    .workspace-tabs .n-tabs-nav__suffix {
+        width: 100%;
+        justify-content: flex-end;
+        padding-left: 0;
+    }
+}
+/* 筛选按内容区的实际宽度换行，避免侧栏展开后下拉框把其他控件挤到下一行。 */
+/* 镜头选择和图库筛选共用一行，以控件中心对齐；窄屏保留完整筛选组，不挤压复选框。 */
+.content-with-history {
+    height: clamp(360px, 66dvh, 850px);
+    min-height: 0;
+    grid-template-columns: minmax(0, 1fr) 207px;
+}
+.content-with-history > main,
+.content-with-history > aside {
+    min-height: 0;
+    overflow: hidden;
+    overscroll-behavior: contain;
+}
+/* 拆解结果使用剩余高度，不能再用视口比例定高后隐藏长列表。 */
+/* 剧集选择、统计和下一步入口共用一行，避免空操作行与双层顶部留白。 */
+/* 连续阅读区保留双栏，执行记录按需展开，不挤占默认阅读宽度。 */
+/* 面板只负责尺寸与裁切；滚动和深浅主题滚动条统一交给 Naive UI。 */
+.panel-scroll.n-scrollbar {
+    height: 100%;
+    min-height: 0;
+    min-width: 0;
+    overflow: hidden;
+}
+.n-scrollbar > .n-scrollbar-container {
+    overscroll-behavior: contain;
+}
+.production-detail,
+.storyboard-detail,
+.content-with-history > main {
+    min-width: 0;
+    min-height: 0;
+}
+.image-history.n-scrollbar,
+.table-scroll.n-scrollbar {
+    height: auto;
+    overflow: hidden;
+}
+.image-history.n-scrollbar {
+    width: 100%;
+    max-width: 100%;
+    min-width: 0;
+}
+.image-history-heading {
+    display: flex;
+    flex-wrap: wrap;
+    align-items: center;
+    justify-content: space-between;
+    gap: 6px 16px;
+    margin-block: 16px 8px;
+    font-size: 12px;
+}
+.image-history-content {
+    display: flex;
+    gap: 12px;
+    padding: 4px 4px 12px;
+    width: max-content;
+}
+.code-scroll.n-scrollbar {
+    height: auto;
+    max-height: 420px;
+    overflow: hidden;
+}
+.code-scroll .json-view,
+.code-scroll .storyboard-json {
+    max-height: none;
+    overflow: visible;
+}
+/* 项目筛选与搜索框同高，保留更宽的点击区；窄屏可自然换行。 */
+/* 状态说明与操作各自成组，避免小标签夹在不同尺寸的按钮之间。 */
+.dialog-footer {
+    display: flex;
+    justify-content: flex-end;
+    gap: 8px;
+    padding-top: 16px;
+}
+/* 预览尺寸不随原图分辨率增长，历史缩略图也不能被按钮默认宽度覆盖。 */
+.n-button__content {
+    gap: 6px;
+}
+.n-button:disabled {
+    opacity: 1;
+}
+.n-button.image-history-item {
+    width: 128px;
+    min-width: 128px;
+    max-width: 128px;
+    flex: 0 0 128px;
+    height: auto;
+    padding: 6px;
+    white-space: normal;
+    background: var(--app-subtle);
+}
+.n-button.image-history-item.selected {
+    background: var(--app-selected);
+    box-shadow: inset 0 0 0 2px var(--app-accent);
+}
+.n-button.image-history-item .n-button__content {
+    display: block;
+    width: 100%;
+    text-align: left;
+    overflow: hidden;
+}
+.image-history-item .asset-image {
+    height: 88px;
+    min-height: 0;
+    aspect-ratio: auto;
+}
+.image-history-label {
+    display: block;
+    margin-top: 6px;
+    font-size: 11px;
+    line-height: 1.5;
+    overflow-wrap: anywhere;
+}
+.image-history-meta {
+    display: flex;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 4px;
+    margin-top: 6px;
+    color: var(--app-muted);
+    font-size: 10px;
+    line-height: 1.5;
+}
+/* 选角进度按抽屉实际宽度排列；按钮尺寸显式覆盖组件默认值。 */
+/* 主体搜索靠左，统计紧随输入框；窄内容区自然换行，不占满整行或挤压控件。 */
+/* 诊断筛选按实际空间换行，长 checkpoint ID 不撑开弹窗。 */
+/* 镜头影响和素材定位使用固定底色；高亮只表示当前定位，不代表素材失效。 */
+/* 关联素材始终单行横向浏览，数量和长名称不会撑高定位区或压缩图片区域。 */
+/* 低频记录收起后归还正文宽度，不留下历史列的占位。 */
+/* 补充说明只按需展开，继续使用平直背景层级，不增加边框或圆角。 */
+.select-control {
+    min-width: 130px;
+}
+.n-checkbox {
+    align-items: flex-start;
+}
+.n-checkbox .n-checkbox__label {
+    white-space: normal;
+}
+.n-alert {
+    line-height: 1.8;
+}
+.n-collapse.panel {
+    padding: 16px;
+}
+.n-table.project-table th {
+    background: var(--app-subtle);
+}
+@media (max-width: 1000px) {
+    .content-with-history {
+        grid-template-columns: minmax(0, 1fr) 180px;
+    }
+}
+@media (max-width: 760px) {
+    .toolbar-episode {
+        flex: 1;
+    }
+    .toolbar-actions {
+        gap: 8px;
+    }
+    .directory-panel {
+        height: 100%;
+        border-right: 0;
+    }
+    .directory-heading {
+        padding: 12px 14px 8px;
+    }
+    .directory-list-content {
+        flex-direction: row;
+        width: max-content;
+        align-items: stretch;
+        padding-bottom: 12px;
+    }
+    .content-with-history {
+        grid-template-columns: minmax(0, 1fr);
+        grid-template-rows: minmax(0, 1fr) 130px;
+    }
+}
diff --git a/src/styles/styles.css b/src/styles/styles.css
new file mode 100644
index 0000000..f504062
--- /dev/null
+++ b/src/styles/styles.css
@@ -0,0 +1,280 @@
+@import 'tailwindcss';
+/* 微信风格明暗主题：灰阶表面搭配绿色操作态，业务排版保持不变。 */
+@theme {
+    --color-ink: var(--app-ink);
+    --color-muted: var(--app-muted);
+    --color-faint: var(--app-muted);
+    --color-line: var(--app-border);
+    --color-accent: var(--app-accent-text);
+    --color-danger: var(--app-danger);
+    --color-success: var(--app-success);
+    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
+}
+@layer base {
+    * {
+        box-sizing: border-box;
+    }
+    body {
+        margin: 0;
+        background: var(--app-body);
+        color: var(--color-ink);
+        font-family: var(--font-sans);
+        -webkit-font-smoothing: antialiased;
+    }
+    button,
+    input,
+    textarea,
+    select {
+        font: inherit;
+    }
+    button,
+    a,
+    summary {
+        -webkit-tap-highlight-color: transparent;
+    }
+    button:not(:disabled),
+    summary,
+    select {
+        cursor: pointer;
+    }
+    button:disabled {
+        opacity: 0.45;
+        cursor: not-allowed;
+    }
+    a {
+        text-decoration: none;
+        color: inherit;
+    }
+    :focus-visible {
+        outline: 2px solid var(--color-accent);
+        outline-offset: 3px;
+    }
+    input:focus-visible,
+    textarea:focus-visible,
+    select:focus-visible {
+        outline-offset: 1px;
+    }
+    ::selection {
+        background: var(--app-selected);
+        color: var(--app-ink);
+    }
+}
+@layer components {
+    .eyebrow {
+        font-size: 10px;
+        letter-spacing: 0.11em;
+        color: var(--color-muted);
+        font-weight: 500;
+    }
+    .button {
+        display: inline-flex;
+        align-items: center;
+        justify-content: center;
+        gap: 8px;
+        padding: 9px 14px;
+        min-height: 36px;
+        border: 1px solid transparent;
+        border-radius: 0;
+        font-size: 12px;
+        font-weight: 500;
+        white-space: nowrap;
+        transition:
+            background 0.15s,
+            border-color 0.15s;
+    }
+    .button-primary {
+        background: var(--app-button-primary);
+        color: var(--app-on-accent);
+    }
+    .button-primary:hover:not(:disabled) {
+        background: var(--app-button-hover);
+    }
+    .button-primary:active:not(:disabled) {
+        background: var(--app-button-pressed);
+    }
+    .button:disabled {
+        background: var(--app-disabled-bg);
+        color: var(--app-disabled-text);
+        opacity: 1;
+    }
+    .button-secondary {
+        background: var(--app-control);
+        color: var(--app-ink);
+    }
+    .button-secondary:hover:not(:disabled) {
+        background: var(--app-control-hover);
+    }
+    .text-button {
+        display: inline-flex;
+        align-items: center;
+        gap: 6px;
+        font-size: 11px;
+        color: var(--color-muted);
+        padding: 6px 0;
+    }
+    .text-button:hover:not(:disabled) {
+        color: var(--color-accent);
+    }
+    .panel {
+        --app-field: var(--app-control);
+        --app-field-hover: var(--app-control-hover);
+        background: var(--app-surface);
+        border-radius: 0;
+    }
+    /* 次级信息用低对比底色成组，避免用边框把工作台切成碎片。 */
+    .surface-inset {
+        --app-field: var(--app-surface);
+        --app-field-hover: var(--app-surface);
+        background: var(--app-subtle);
+    }
+    /* 首项与其它条目统一内边距；背景过渡仅用于主题切换，不随鼠标或焦点变化。 */
+    .record-list > article {
+        padding: 20px;
+        transition: background-color 160ms ease;
+    }
+    .record-list > article:nth-child(even) {
+        background: var(--app-subtle);
+    }
+    /* 主体奇数行常驻原悬停底色，与偶数行形成固定斑马纹；内部控件仍保留交互反馈。 */
+    /* 形态块与所在主体条纹使用相反灰阶，避免偶数行内外同色；不增加边框或悬停态。 */
+    .table-scroll {
+        overflow: hidden;
+    }
+    .project-table {
+        width: 100%;
+        border-collapse: collapse;
+        text-align: left;
+        font-size: 12px;
+    }
+    .project-table th {
+        padding: 13px 20px;
+        background: var(--app-control);
+        color: var(--color-muted);
+        font-size: 10px;
+        font-weight: 500;
+        white-space: nowrap;
+    }
+    .project-table td {
+        padding: 21px 20px;
+    }
+    .project-table tr:last-child td {
+        border-bottom: none;
+    }
+    .project-table tbody tr:nth-child(even) td {
+        background: var(--app-subtle);
+    }
+    .project-table tbody tr:hover td {
+        background: var(--app-selected);
+    }
+    .production-step {
+        display: grid;
+        place-items: center;
+        width: 36px;
+        height: 36px;
+        flex-shrink: 0;
+        border-radius: 0;
+        background: var(--app-subtle);
+        color: var(--app-ink);
+    }
+    .dialog-footer {
+        display: flex;
+        justify-content: flex-end;
+        gap: 10px;
+        padding-top: 20px;
+    }
+    .field-label {
+        display: block;
+        margin-bottom: 9px;
+        font-size: 12px;
+        font-weight: 500;
+        color: var(--app-ink);
+    }
+    .input {
+        width: 100%;
+        background: var(--app-field);
+        color: var(--color-ink);
+        border-radius: 0;
+        padding: 9px 11px;
+        font-size: 12px;
+        line-height: 1.7;
+    }
+    .input::placeholder {
+        color: var(--app-muted);
+    }
+    .input:disabled {
+        background: var(--app-subtle);
+        opacity: 0.6;
+    }
+    .alert-error {
+        background: var(--app-subtle);
+        color: var(--app-danger);
+    }
+    .content-with-history {
+        display: grid;
+        grid-template-columns: minmax(0, 1fr) 207px;
+        min-height: 480px;
+        overflow: hidden;
+    }
+    .image-history {
+        overflow: hidden;
+    }
+    .image-history-item .asset-image-empty {
+        font-size: 9px;
+        padding: 6px;
+        gap: 4px;
+    }
+    .image-history-item .asset-image-empty svg {
+        width: 14px;
+        height: 14px;
+    }
+    .reference-placeholder {
+        display: grid;
+        place-items: center;
+        aspect-ratio: 4 / 3;
+        font-size: 11px;
+        color: var(--color-muted);
+        background: var(--app-subtle);
+    }
+    .detail-grid {
+        display: grid;
+        grid-template-columns: 70px minmax(0, 1fr);
+        gap: 15px;
+        font-size: 12px;
+        line-height: 1.9;
+    }
+    .detail-grid dt {
+        color: var(--color-muted);
+    }
+    .detail-grid dd {
+        white-space: pre-wrap;
+        overflow-wrap: anywhere;
+    }
+    .subject-ref {
+        display: inline-flex;
+        background: var(--app-subtle);
+        padding: 3px 6px;
+        border-radius: 0;
+        color: var(--app-ink);
+        font-size: 10px;
+    }
+}
+/* 中等宽度保留正文空间，执行记录下移，移动端导航收为图标。 */
+@media (max-width: 1200px) {
+    .content-with-history {
+        grid-template-columns: minmax(0, 1fr);
+    }
+}
+@media (max-width: 760px) {
+    .project-table td,
+    .project-table th {
+        padding-inline: 14px;
+    }
+}
+@media (prefers-reduced-motion: reduce) {
+    *,
+    *::before,
+    *::after {
+        animation-duration: 0.01ms !important;
+        transition-duration: 0.01ms !important;
+    }
+}
diff --git a/src/testing/styles.ts b/src/testing/styles.ts
new file mode 100644
index 0000000..f67fefe
--- /dev/null
+++ b/src/testing/styles.ts
@@ -0,0 +1,239 @@
+import { readFileSync, readdirSync } from 'node:fs'
+
+const SPACE: Record<string, string> = {
+    '0': '0',
+    px: '1px',
+    '0.5': '2px',
+    '1': '4px',
+    '1.5': '6px',
+    '2': '8px',
+    '2.5': '10px',
+    '3': '12px',
+    '3.5': '14px',
+    '4': '16px',
+    '5': '20px',
+    '6': '24px',
+    '7': '28px',
+    '8': '32px',
+    '9': '36px',
+    '10': '40px',
+    '11': '44px',
+    '12': '48px',
+    '14': '56px'
+}
+
+const STATIC: Record<string, string> = {
+    flex: 'display: flex;',
+    grid: 'display: grid;',
+    block: 'display: block;',
+    hidden: 'display: none;',
+    contents: 'display: contents;',
+    'inline-flex': 'display: inline-flex;',
+    'flex-col': 'flex-direction: column;',
+    'flex-wrap': 'flex-wrap: wrap;',
+    'items-center': 'align-items: center;',
+    'items-end': 'align-items: end;',
+    'items-start': 'align-items: flex-start;',
+    'items-stretch': 'align-items: stretch;',
+    'self-start': 'align-self: start;',
+    'justify-center': 'justify-content: center;',
+    'justify-start': 'justify-content: flex-start;',
+    'justify-between': 'justify-content: space-between;',
+    'justify-self-end': 'justify-self: end;',
+    'shrink-0': 'flex-shrink: 0;',
+    'flex-1': 'flex: 1;',
+    'overflow-hidden': 'overflow: hidden;',
+    'min-h-0': 'min-height: 0;',
+    'min-w-0': 'min-width: 0;',
+    'w-full': 'width: 100%;',
+    'w-max': 'width: max-content;',
+    'h-full': 'height: 100%;',
+    'h-auto': 'height: auto;',
+    'h-dvh': 'height: 100dvh;',
+    'max-w-full': 'max-width: 100%;',
+    'max-h-none': 'max-height: none;',
+    'whitespace-nowrap': 'white-space: nowrap;',
+    'whitespace-normal': 'white-space: normal;',
+    'whitespace-pre-wrap': 'white-space: pre-wrap;',
+    'text-center': 'text-align: center;',
+    'text-left': 'text-align: left;',
+    'wrap-anywhere': 'overflow-wrap: anywhere;',
+    'rounded-none': 'border-radius: 0;',
+    relative: 'position: relative;',
+    sticky: 'position: sticky;',
+    fixed: 'position: fixed;',
+    'top-0': 'top: 0;',
+    'left-0': 'left: 0;',
+    'right-0': 'right: 0;',
+    'bottom-0': 'bottom: 0;',
+    'inset-0': 'inset: 0;',
+    'list-none': 'list-style: none;',
+    'place-items-center': 'place-items: center;',
+    'place-content-center': 'place-content: center;',
+    'object-contain': 'object-fit: contain;',
+    'overscroll-contain': 'overscroll-behavior: contain;',
+    'break-inside-avoid': 'break-inside: avoid;',
+    'outline-none': 'outline: none;',
+    'text-ellipsis': 'text-overflow: ellipsis;',
+    'font-normal': 'font-weight: 400;',
+    'font-medium': 'font-weight: 500;',
+    'font-semibold': 'font-weight: 600;',
+    'font-mono': 'font-family: ui-monospace, monospace;',
+    'text-xs': 'font-size: 12px;',
+    'text-sm': 'font-size: 14px;',
+    'text-base': 'font-size: 16px;',
+    'leading-normal': 'line-height: 1.5;',
+    'm-0': 'margin: 0;',
+    'p-0': 'padding: 0;',
+    'border-0': 'border: 0;',
+    'border-t-0': 'border-top: none;',
+    'mx-auto': 'margin-inline: auto;',
+    'mx-0': 'margin-inline: 0;',
+    'my-0': 'margin-block: 0;',
+    'ml-auto': 'margin-left: auto;',
+    'px-0': 'padding-inline: 0;',
+    'bg-transparent': 'background: transparent;',
+    'order-0': 'order: 0;',
+    'order-1': 'order: 1;',
+    'order-2': 'order: 2;',
+    'aspect-auto': 'aspect-ratio: auto;',
+    'aspect-video': 'aspect-ratio: 16 / 9;',
+    'rotate-180': 'transform: rotate(180deg);',
+    'text-ink': 'color: var(--app-ink);',
+    'text-muted': 'color: var(--app-muted);',
+    'text-accent': 'color: var(--app-accent-text);',
+    'bg-ink': 'background: var(--app-ink);',
+    'z-10': 'z-index: 10;'
+}
+
+const PREFIX_PROP: Record<string, string> = {
+    'min-h': 'min-height',
+    'min-w': 'min-width',
+    'max-h': 'max-height',
+    'max-w': 'max-width',
+    'grid-cols': 'grid-template-columns',
+    'grid-rows': 'grid-template-rows',
+    col: 'grid-column',
+    flex: 'flex',
+    w: 'width',
+    h: 'height',
+    p: 'padding',
+    px: 'padding-inline',
+    py: 'padding-block',
+    pt: 'padding-top',
+    pr: 'padding-right',
+    pb: 'padding-bottom',
+    pl: 'padding-left',
+    m: 'margin',
+    mx: 'margin-inline',
+    my: 'margin-block',
+    mt: 'margin-top',
+    mr: 'margin-right',
+    mb: 'margin-bottom',
+    ml: 'margin-left',
+    gap: 'gap',
+    'gap-x': 'column-gap',
+    'gap-y': 'row-gap',
+    text: 'font-size',
+    leading: 'line-height',
+    tracking: 'letter-spacing',
+    top: 'top',
+    right: 'right',
+    bottom: 'bottom',
+    left: 'left',
+    inset: 'inset',
+    z: 'z-index',
+    shadow: 'box-shadow',
+    outline: 'outline',
+    'outline-offset': 'outline-offset',
+    bg: 'background',
+    columns: 'columns',
+    aspect: 'aspect-ratio'
+}
+
+const PREFIXES = Object.keys(PREFIX_PROP).toSorted((a, b) => b.length - a.length)
+
+/**
+ * 把单个 Tailwind 工具类还原成 CSS 声明，供样式契约测试对照。
+ * @param util 工具类名
+ * @returns CSS 声明，无法还原时返回空字符串
+ */
+function expandUtil(util: string): string {
+    if (util.startsWith('[') && util.endsWith(']')) {
+        const inner = util.slice(1, -1)
+        const colon = inner.indexOf(':')
+        if (colon > 0) return `${inner.slice(0, colon)}: ${inner.slice(colon + 1)};`
+    }
+    if (STATIC[util]) return STATIC[util]!
+    const paren = util.match(/^([a-z-]+)-\((--[\w-]+)\)$/)
+    if (paren) {
+        const prop = PREFIX_PROP[paren[1]!] ?? paren[1]
+        const cssVar = paren[2]!
+        if (prop === 'background') return `background: var(${cssVar});`
+        if (paren[1] === 'text') return `color: var(${cssVar});`
+        return `${prop}: var(${cssVar});`
+    }
+    const arb = util.match(/^(-?[a-z-]+)-\[(.+)\]$/)
+    if (arb) {
+        const name = arb[1]!
+        const raw = arb[2]!.replace(/_/g, ' ').replace(/,(?=\S)/g, ', ')
+        const prop = PREFIX_PROP[name.replace(/^-/, '')]
+        if (!prop) return `${name}: ${raw};`
+        if (name.startsWith('-')) return `${prop}: -${raw};`
+        return `${prop}: ${raw};`
+    }
+    for (const prefix of PREFIXES) {
+        if (!util.startsWith(`${prefix}-`)) continue
+        const key = util.slice(prefix.length + 1)
+        const px = SPACE[key]
+        const prop = PREFIX_PROP[prefix]
+        if (px !== undefined && prop) return `${prop}: ${px};`
+    }
+    return ''
+}
+
+/**
+ * 把 @apply 行展开成 CSS 声明，并补回测试仍在匹配的 padding/margin 简写。
+ * @param css 含 @apply 的样式源码
+ * @returns 展开后的样式文本
+ */
+function expandApply(css: string): string {
+    return css.replace(/@apply\s+([^;]+);/g, (_all, utils: string) => {
+        const decls = utils.trim().split(/\s+/).map(expandUtil).filter(Boolean)
+        const valueOf = (prefix: string) =>
+            decls
+                .find(item => item.startsWith(prefix))
+                ?.slice(prefix.length)
+                .replace(';', '')
+                .trim()
+        const paddingX = valueOf('padding-inline:')
+        const paddingY = valueOf('padding-block:')
+        const paddingT = valueOf('padding-top:')
+        const paddingB = valueOf('padding-bottom:')
+        if (paddingY && paddingX) decls.push(`padding: ${paddingY} ${paddingX};`)
+        else if (paddingT && paddingX && paddingB) decls.push(`padding: ${paddingT} ${paddingX} ${paddingB};`)
+        const marginX = valueOf('margin-inline:')
+        const marginT = valueOf('margin-top:')
+        const marginB = valueOf('margin-bottom:')
+        if (marginT && marginX && marginB) decls.push(`margin: ${marginT} ${marginX} ${marginB};`)
+        if (marginT && marginB) decls.push(`margin-block: ${marginT} ${marginB};`)
+        const gapY = valueOf('row-gap:')
+        const gapX = valueOf('column-gap:')
+        if (gapY && gapX) decls.push(`gap: ${gapY} ${gapX};`)
+        return decls.join(' ')
+    })
+}
+
+/**
+ * 读取全局 CSS 与全部组件内 style，供样式契约测试对照搬迁后的规则。
+ * @returns 拼接后的样式源码
+ */
+export function readAllStyles(): string {
+    const vueFiles = readdirSync('src', { recursive: true, encoding: 'utf8' }).filter(path =>
+        String(path).endsWith('.vue')
+    )
+    const raw = ['src/styles/styles.css', 'src/styles/admin.css', ...vueFiles.map(path => `src/${path}`)]
+        .map(path => readFileSync(path, 'utf8'))
+        .join('\n')
+    return expandApply(raw)
+}
diff --git a/src/components/ui/ActionMenu.test.ts b/tests/components/ui/ActionMenu.test.ts
similarity index 90%
rename from src/components/ui/ActionMenu.test.ts
rename to tests/components/ui/ActionMenu.test.ts
index 90f9bb8..dc2b9dc 100644
--- a/src/components/ui/ActionMenu.test.ts
+++ b/tests/components/ui/ActionMenu.test.ts
@@ -1,12 +1,12 @@
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import { NInput, NDropdown } from 'naive-ui'
-import ActionMenu from './ActionMenu.vue'
-import DetailDisclosure from './DetailDisclosure.vue'
-import StyleEditor from '../../features/visual-style/components/StyleEditor.vue'
-import SubjectList from '../../features/breakdown/components/SubjectList.vue'
-import { selectMenu } from '../../testing/naive'
-import type { SubjectCandidate } from '../../features/breakdown/types'
+import ActionMenu from '@/components/ui/ActionMenu.vue'
+import DetailDisclosure from '@/components/ui/DetailDisclosure.vue'
+import StyleEditor from '@/features/visual-style/components/StyleEditor.vue'
+import SubjectList from '@/features/breakdown/components/SubjectList.vue'
+import { selectMenu } from '@/testing/naive'
+import type { SubjectCandidate } from '@/features/breakdown/types'
 
 let wrapper: VueWrapper | undefined
 afterEach(() => {
diff --git a/src/components/ui/AssetImage.test.ts b/tests/components/ui/AssetImage.test.ts
similarity index 98%
rename from src/components/ui/AssetImage.test.ts
rename to tests/components/ui/AssetImage.test.ts
index cfe53cf..c0c6e5f 100644
--- a/src/components/ui/AssetImage.test.ts
+++ b/tests/components/ui/AssetImage.test.ts
@@ -1,7 +1,7 @@
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it } from 'vitest'
 import { NImage } from 'naive-ui'
-import AssetImage from './AssetImage.vue'
+import AssetImage from '@/components/ui/AssetImage.vue'
 
 let wrapper: VueWrapper | undefined
 afterEach(() => {
diff --git a/src/components/ui/DirectoryItem.test.ts b/tests/components/ui/DirectoryItem.test.ts
similarity index 91%
rename from src/components/ui/DirectoryItem.test.ts
rename to tests/components/ui/DirectoryItem.test.ts
index c0a5fed..dd4ed1b 100644
--- a/src/components/ui/DirectoryItem.test.ts
+++ b/tests/components/ui/DirectoryItem.test.ts
@@ -1,8 +1,8 @@
 import { mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import { NButton } from 'naive-ui'
-import { readFileSync } from 'node:fs'
-import DirectoryItem from './DirectoryItem.vue'
+import DirectoryItem from '@/components/ui/DirectoryItem.vue'
+import { readAllStyles } from '@/testing/styles'
 
 let wrapper: VueWrapper | undefined
 afterEach(() => wrapper?.unmount())
@@ -53,7 +53,7 @@ describe('统一目录条目', () => {
 
     it('显式保护最小高度、留白、换行和窄屏横向条目，避免旧按钮样式重新挤压目录', () => {
         // DOM 环境不计算视觉几何；这些约束不能替代浏览器验收。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(/\.n-button\.directory-item\s*\{[^}]*min-height:\s*88px;[^}]*padding:\s*12px 14px/)
         expect(css).toMatch(/\.directory-item-body\s*\{[^}]*flex-direction:\s*column;[^}]*gap:\s*7px/)
         expect(css).toMatch(/\.directory-item-title\s*\{[^}]*overflow-wrap:\s*anywhere/)
@@ -68,7 +68,7 @@ describe('统一目录条目', () => {
 
     it('侧栏与主体、镜头、剧集目录统一直角满行，保留文字内边距和移动端滚动', () => {
         // happy-dom 无法计算伪元素几何，保护实际控制选中背景宽度的 CSS 规则。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(
             /\.admin-sider \.n-menu \.n-menu-item-content::before\s*\{[^}]*left:\s*0;[^}]*right:\s*0;[^}]*border-radius:\s*0/
         )
@@ -76,18 +76,16 @@ describe('统一目录条目', () => {
         expect(css).toMatch(/\.reader-directory-content\s*\{[^}]*padding:\s*4px 0 18px/)
         expect(css).not.toMatch(/\.reader-directory-content\s*\{[^}]*padding-inline:\s*[1-9]/)
         for (const selector of ['directory-item', 'reader-episode-link']) {
-            expect(css).toMatch(
-                new RegExp(
-                    `\\.n-button\\.${selector}\\s*\\{[^}]*width:\\s*100%;[^}]*padding:\\s*12px 14px;[^}]*border-radius:\\s*0`
-                )
-            )
+            expect(css).toMatch(new RegExp(`\\.n-button\\.${selector}\\s*\\{[^}]*width:\\s*100%`))
+            expect(css).toMatch(new RegExp(`\\.n-button\\.${selector}\\s*\\{[^}]*padding:\\s*12px 14px`))
+            expect(css).toMatch(new RegExp(`\\.n-button\\.${selector}\\s*\\{[^}]*border-radius:\\s*0`))
         }
         expect(css).toMatch(/\.directory-group-heading\s*\{[^}]*padding:\s*10px 14px/)
         expect(css).toMatch(/\.directory-list-content\s*\{[^}]*flex-direction:\s*row;[^}]*width:\s*max-content/)
     })
 
     it('Tabs 工具栏与筛选网格限制最小宽度，不让组件默认宽度挤压内容', () => {
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(/\.workspace-tabs\.n-tabs\s*\{[^}]*width:\s*100%;[^}]*min-width:\s*0/)
         expect(css).toMatch(/\.workspace-tabs \.n-tabs-nav-scroll-wrapper\s*\{[^}]*min-width:\s*0/)
         expect(css).toMatch(
diff --git a/src/components/ui/flatTheme.test.ts b/tests/components/ui/flatTheme.test.ts
similarity index 91%
rename from src/components/ui/flatTheme.test.ts
rename to tests/components/ui/flatTheme.test.ts
index 82d6d96..44d6874 100644
--- a/src/components/ui/flatTheme.test.ts
+++ b/tests/components/ui/flatTheme.test.ts
@@ -15,7 +15,8 @@ import {
     NTabs
 } from 'naive-ui'
 import { readFileSync, readdirSync } from 'node:fs'
-import { useTheme } from '../../composables/useTheme'
+import { useTheme } from '@/composables/useTheme'
+import { readAllStyles } from '@/testing/styles'
 
 let wrapper: VueWrapper | undefined
 afterEach(() => {
@@ -132,7 +133,7 @@ describe('全站平面主题', () => {
 
     it('普通按钮只在键盘焦点可见时显示外框，不用失焦或禁止聚焦隐藏点击反馈', () => {
         // DOM 环境不模拟真实鼠标／键盘焦点判定，保护共享 CSS 与触发器契约。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(
             /\.n-button:focus-visible\s*\{[^}]*outline:\s*2px solid var\(--app-accent-text\);[^}]*outline-offset:\s*2px;/
         )
@@ -143,7 +144,7 @@ describe('全站平面主题', () => {
 
     it('图库筛选吸顶，关联内容横向单行滚动，不给头部和图片区制造双重滚动边界', () => {
         // 静态保护吸顶和横向尺寸规则；真实视口滚动与位置仍需浏览器验收。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(
             /\.gallery-workspace-page \.gallery-sticky-controls\s*\{[^}]*position:\s*sticky;[^}]*top:\s*0;[^}]*z-index:\s*10;[^}]*background:\s*var\(--app-body\);/
         )
@@ -166,7 +167,7 @@ describe('全站平面主题', () => {
     })
 
     it('瀑布流自适应列宽，卡片保持完整并按封面尺寸预留高度', () => {
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(
             /\.gallery-workspace-page \.form-image-masonry\s*\{[^}]*display:\s*block;[^}]*columns:\s*260px;[^}]*column-gap:\s*20px;/
         )
@@ -174,15 +175,15 @@ describe('全站平面主题', () => {
             /\.form-image-masonry > \.form-image-card\s*\{[^}]*break-inside:\s*avoid;[^}]*margin-bottom:\s*20px;/
         )
         expect(css).toMatch(
-            /\.form-image-masonry \.asset-image\s*\{[^}]*aspect-ratio:\s*var\(--form-image-aspect, 4 \/ 3\);/
+            /\.form-image-masonry \.asset-image\s*\{[^}]*aspect-ratio:\s*var\(--form-image-aspect,\s*4\s*\/\s*3\);/
         )
     })
 
     it('图库顶部统一镜头选择和筛选的背景与垂直对齐，窄屏整组换行', () => {
         // DOM 环境不计算几何；保护容器宽度断点和居中契约，真实坐标仍需浏览器验收。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(
-            /\.form-image-filter-region\s*\{[^}]*padding:\s*14px 16px;[^}]*background:\s*var\(--app-subtle\);/
+            /\.form-image-filter-region\s*\{[^}]*padding(?:-block)?:\s*14px;[^}]*background:\s*var\(--app-subtle\);/
         )
         expect(css).toMatch(/\.form-image-toolbar\s*\{[^}]*align-items:\s*center;[^}]*gap:\s*12px 16px;/)
         expect(css).toMatch(
@@ -192,12 +193,14 @@ describe('全站平面主题', () => {
             /@container \(max-width: 1200px\)\s*\{\s*\.form-image-toolbar\.has-impact-picker,\s*\.form-image-toolbar\.has-impact-picker\.has-impact-actions\s*\{[^}]*grid-template-columns:\s*minmax\(0, 1fr\);/
         )
         expect(css).toMatch(/\.asset-impact-picker\s*\{[^}]*align-items:\s*center;[^}]*gap:\s*8px;/)
-        expect(css).toMatch(/\.asset-impact-context\s*\{[^}]*gap:\s*10px;[^}]*padding:\s*5px 16px;[^}]*margin:\s*0;/)
+        expect(css).toMatch(/\.asset-impact-context\s*\{[^}]*gap:\s*10px/)
+        expect(css).toMatch(/\.asset-impact-context\s*\{[^}]*padding(?:-block)?:\s*5px/)
+        expect(css).toMatch(/\.asset-impact-context\s*\{[^}]*margin:\s*0/)
     })
 
     it('单图标按钮以当前控件高度为边长，尺寸与内容按钮互不影响', () => {
         // happy-dom 不计算几何尺寸，此项约束共用样式和调用方，实际布局仍需浏览器验收。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(
             /\.n-button\.icon-button\s*\{[^}]*width:\s*var\(--n-height\);[^}]*min-width:\s*var\(--n-height\);[^}]*height:\s*var\(--n-height\);[^}]*padding:\s*0/
         )
@@ -221,23 +224,22 @@ describe('全站平面主题', () => {
 
     it('业务面板、列表分组和标签以背景区分，保留键盘焦点与选中指示', () => {
         // happy-dom 不计算布局；此项保护 CSS 契约，不能替代浏览器视觉验收。
-        const admin = readFileSync('src/admin.css', 'utf8')
-        const css = readFileSync('src/styles.css', 'utf8')
-        expect(admin + css).not.toMatch(/border-radius:\s*[1-9]/)
-        expect(admin + css).not.toMatch(/border(?:-[\w]+)?:\s*1px (?:solid|dashed) var\(--(?:app-border|color-line)\)/)
+        const css = readAllStyles()
+        expect(css).not.toMatch(/border-radius:\s*[1-9]/)
+        expect(css).not.toMatch(/border(?:-[\w]+)?:\s*1px (?:solid|dashed) var\(--(?:app-border|color-line)\)/)
         expect(css).toMatch(/\.surface-inset\s*\{[^}]*background:\s*var\(--app-subtle\)/)
         expect(css).toMatch(/\.record-list > article:nth-child\(even\)\s*\{\s*background:/)
-        expect(admin).toMatch(/\.directory-group-heading\s*\{[^}]*background:\s*var\(--app-control\)/)
-        expect(admin).toMatch(/\.directory-status\s*\{[^}]*background:\s*var\(--app-control\)/)
-        expect(admin).toMatch(/\.n-button\.directory-item:focus-visible\s*\{[^}]*outline:\s*2px/)
-        expect(admin).toMatch(
+        expect(css).toMatch(/\.directory-group-heading\s*\{[^}]*background:\s*var\(--app-control\)/)
+        expect(css).toMatch(/\.directory-status\s*\{[^}]*background:\s*var\(--app-control\)/)
+        expect(css).toMatch(/\.n-button\.directory-item:focus-visible\s*\{[^}]*outline:\s*2px/)
+        expect(css).toMatch(
             /\.n-button\.directory-item\.selected\s*\{[^}]*var\(--app-selected\)[^}]*var\(--app-accent\)/
         )
     })
 
     it('斑马纹首项保留统一顶部留白，背景色平滑过渡并遵循减少动态效果设置', () => {
         // DOM 环境不计算实际内边距，检查共享规则及之前覆盖首项留白的工具类。
-        const css = readFileSync('src/styles.css', 'utf8')
+        const css = readFileSync('src/styles/styles.css', 'utf8')
         expect(css).toMatch(
             /\.record-list > article\s*\{[^}]*padding:\s*20px;[^}]*transition:\s*background-color 160ms ease;/
         )
diff --git a/src/components/ui/layout.test.ts b/tests/components/ui/layout.test.ts
similarity index 76%
rename from src/components/ui/layout.test.ts
rename to tests/components/ui/layout.test.ts
index 5f04da1..470de4f 100644
--- a/src/components/ui/layout.test.ts
+++ b/tests/components/ui/layout.test.ts
@@ -2,17 +2,18 @@ import { h } from 'vue'
 import { createMemoryHistory, createRouter } from 'vue-router'
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { NConfigProvider, NDrawer, NDrawerContent, NModal, NScrollbar, NTooltip } from 'naive-ui'
-import App from '../../App.vue'
-import WorkspacePage from './WorkspacePage.vue'
-import AppDialog from './AppDialog.vue'
-import WorkspaceTools from './WorkspaceTools.vue'
-import ProjectLayout from '../../features/projects/ProjectLayout.vue'
-import ConfirmAction from '../../features/workflows/ConfirmAction.vue'
-import ThemeToggle from './ThemeToggle.vue'
-import { projectsApi } from '../../features/projects/api'
+import { NConfigProvider, NDrawer, NDrawerContent, NMenu, NModal, NScrollbar, NTooltip } from 'naive-ui'
+import App from '@/App.vue'
+import WorkspacePage from '@/components/ui/WorkspacePage.vue'
+import AppDialog from '@/components/ui/AppDialog.vue'
+import WorkspaceTools from '@/components/ui/WorkspaceTools.vue'
+import ProjectLayout from '@/features/projects/ProjectLayout.vue'
+import ConfirmAction from '@/features/workflows/ConfirmAction.vue'
+import ThemeToggle from '@/components/ui/ThemeToggle.vue'
+import { projectsApi } from '@/features/projects/api'
 import { readFileSync } from 'node:fs'
-import { drawerPanel } from '../../testing/naive'
+import { drawerPanel } from '@/testing/naive'
+import { readAllStyles } from '@/testing/styles'
 
 let wrapper: VueWrapper | undefined
 afterEach(() => {
@@ -26,7 +27,7 @@ afterEach(() => {
 describe('管理后台组件边界', () => {
     it('Tabs suffix 与标签共用导航行，窄屏换行但不产生外层滚动', () => {
         // DOM 测试不计算坐标；保护对齐尺寸与容器断点，视觉验收仍需浏览器。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(/\.workspace-tabs > \.n-tabs-nav\s*\{[^}]*align-items:\s*stretch;/)
         expect(css).toMatch(/\.workspace-tabs \.n-tabs-nav__suffix\s*\{[^}]*align-items:\s*center;/)
         expect(css).toMatch(/\.tabs-toolbar-actions\s*\{[^}]*align-items:\s*center;[^}]*min-height:\s*40px;/)
@@ -36,31 +37,32 @@ describe('管理后台组件边界', () => {
 
     it('滚动边界样式包含 document 锁定和工作区收缩约束', () => {
         // happy-dom 不计算视口几何；这里只保护 CSS 契约，真实滚动仍需浏览器验收。
-        const adminCss = readFileSync('src/admin.css', 'utf8')
+        const adminCss = readAllStyles()
         expect(adminCss).toMatch(/html,\s*body,\s*#app,\s*\.app-provider\s*\{[^}]*overflow:\s*hidden/)
         expect(adminCss).toMatch(/\.workspace-page\s*\{[^}]*min-height:\s*0;[^}]*overflow:\s*hidden/)
     })
     it('业务样式不再直接开启浏览器原生滚动条', () => {
-        const css = readFileSync('src/admin.css', 'utf8') + readFileSync('src/styles.css', 'utf8')
+        const css = readAllStyles()
         expect(css).not.toMatch(/overflow(?:-[xy])?\s*:\s*(?:auto|scroll)\b/)
     })
     it('历史缩略图尺寸在非分层样式中覆盖 Naive 按钮，原图不能撑大预览或横向条目', () => {
         // happy-dom 不计算几何；专门保护此前失效的层叠和固定尺寸约束。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readFileSync('src/styles/admin.css', 'utf8')
         expect(css).not.toContain('@layer')
-        expect(css).toMatch(
+        const all = readAllStyles()
+        expect(all).toMatch(
             /\.n-button\.image-history-item\s*\{[^}]*width:\s*128px;[^}]*min-width:\s*128px;[^}]*max-width:\s*128px;[^}]*flex:\s*0 0 128px;[^}]*padding:\s*6px/
         )
-        expect(css).toMatch(/\.image-history-item \.asset-image\s*\{[^}]*height:\s*88px;[^}]*min-height:\s*0/)
-        expect(css).toMatch(
-            /\.asset-image\.asset-image-preview\s*\{[^}]*height:\s*min\(42dvh, 420px\);[^}]*aspect-ratio:\s*auto/
+        expect(all).toMatch(/\.image-history-item \.asset-image\s*\{[^}]*height:\s*88px;[^}]*min-height:\s*0/)
+        expect(all).toMatch(
+            /\.asset-image\.asset-image-preview\s*\{[^}]*height:\s*min\(42dvh,\s*420px\);[^}]*aspect-ratio:\s*auto/
         )
-        expect(css).toMatch(/\.image-history\.n-scrollbar\s*\{[^}]*max-width:\s*100%;[^}]*min-width:\s*0/)
-        expect(css).toMatch(/\.image-history-content\s*\{[^}]*display:\s*flex;[^}]*width:\s*max-content/)
+        expect(all).toMatch(/\.image-history\.n-scrollbar\s*\{[^}]*max-width:\s*100%;[^}]*min-width:\s*0/)
+        expect(all).toMatch(/\.image-history-content\s*\{[^}]*display:\s*flex;[^}]*width:\s*max-content/)
     })
     it('选角面板保留说明间距，卡片按可用宽度排列并覆盖按钮默认高度', () => {
         // 保护间距与换行契约，真实宽高和暗色效果仍需浏览器验收。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(/\.identity-tools-intro\s*\{[^}]*margin-bottom:\s*24px/)
         expect(css).toMatch(
             /\.casting-list\s*\{[^}]*repeat\(auto-fit, minmax\(min\(100%, 260px\), 1fr\)\);[^}]*gap:\s*12px;[^}]*margin-top:\s*24px/
@@ -74,7 +76,7 @@ describe('管理后台组件边界', () => {
     })
     it('拆解分栏跟随剩余高度收缩，移动端历史区不挤出结果区', () => {
         // DOM 环境不计算几何，保护完整的 flex → grid → NScrollbar 高度链。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(/\.breakdown-results-section\s*\{[^}]*flex:\s*1;[^}]*min-height:\s*0/)
         expect(css).toMatch(/\.breakdown-results-section > \.result-toolbar\s*\{[^}]*flex-shrink:\s*0/)
         expect(css).toMatch(
@@ -149,6 +151,13 @@ describe('管理后台组件边界', () => {
         expect(wrapper.find('.admin-topbar [aria-label="后端连接"]').exists()).toBe(false)
         expect(wrapper.find('.admin-nav-scroll [aria-label="后端连接"]').exists()).toBe(false)
         expect(wrapper.get('.admin-sider-footer [aria-label="后端连接"]').text()).toBe('后端连接')
+        expect(wrapper.getComponent(NMenu).props()).toMatchObject({
+            collapsedWidth: 64,
+            iconSize: 20,
+            collapsedIconSize: 20,
+            indent: 22,
+            rootIndent: 22
+        })
         await wrapper.get('[aria-label="折叠侧栏"]').trigger('click')
         expect(wrapper.find('[aria-label="展开侧栏"]').exists()).toBe(true)
         const settings = wrapper.get('.admin-sider-footer [aria-label="后端连接"]')
@@ -159,14 +168,17 @@ describe('管理后台组件边界', () => {
         expect(wrapper.findAll('.admin-nav-scroll .n-menu .n-menu-item')).toHaveLength(8)
     })
 
-    it('侧栏菜单独立滚动，页脚不参与滚动且窄屏不超出视口底部', () => {
-        const css = readFileSync('src/admin.css', 'utf8')
-        expect(css).toMatch(
-            /\.admin-sider-content\s*\{[^}]*height:\s*100%;[^}]*min-height:\s*0;[^}]*overflow:\s*hidden/
-        )
+    it('侧栏菜单独立滚动，页脚不参与滚动且窄屏展开平移主栏', () => {
+        const css = readAllStyles()
+        expect(css).toMatch(/\.admin-sider\s*\{[^}]*display:\s*flex;[^}]*flex-direction:\s*column;[^}]*height:\s*100%/)
         expect(css).toMatch(/\.admin-nav-scroll\.n-scrollbar\s*\{[^}]*flex:\s*1;[^}]*min-height:\s*0/)
         expect(css).toMatch(/\.admin-sider-footer\s*\{[^}]*flex-shrink:\s*0/)
-        expect(css).toMatch(/\.admin-sider:not\([^)]*\)\s*\{[^}]*bottom:\s*0;[^}]*height:\s*auto/)
+        expect(css).toContain('@media (max-width: 800px)')
+        expect(css).toMatch(/transition:\s*width\s+0\.32s/)
+        expect(css).toContain('calc(100% - var(--admin-sider-collapsed))')
+        expect(css).toContain('@media (prefers-reduced-motion: reduce)')
+        expect(css).not.toContain('.admin-sider-mask')
+        expect(css).not.toContain('.admin-sider.is-overlay')
         for (const path of ['storyboard/StoryboardPage.vue', 'production/ProductionPage.vue']) {
             const source = readFileSync(`src/features/${path}`, 'utf8')
             expect(source).not.toContain('<span>剧集</span')
@@ -174,6 +186,57 @@ describe('管理后台组件边界', () => {
         }
     })
 
+    it('窄屏展开导航复用同一侧栏并右移主栏，不压缩主栏宽度', async () => {
+        const realMatchMedia = window.matchMedia.bind(window)
+        vi.stubGlobal('matchMedia', (query: string) => {
+            if (query.includes('max-width: 800px')) {
+                return {
+                    matches: true,
+                    media: query,
+                    addEventListener() {},
+                    removeEventListener() {},
+                    addListener() {},
+                    removeListener() {},
+                    dispatchEvent() {
+                        return false
+                    }
+                }
+            }
+            return realMatchMedia(query)
+        })
+        const router = createRouter({
+            history: createMemoryHistory(),
+            routes: [
+                { path: '/projects', component: { render: () => h('p', '项目列表') } },
+                {
+                    path: '/projects/:projectId/:workspace',
+                    component: { render: () => h(WorkspacePage, {}, () => '镜头详情') }
+                }
+            ]
+        })
+        await router.push('/projects/test/production')
+        wrapper = mount(App, { attachTo: document.body, global: { plugins: [router] } })
+        await flushPromises()
+        expect(wrapper.findAll('.admin-sider')).toHaveLength(1)
+        expect(wrapper.get('.admin-sider').classes()).toContain('is-collapsed')
+        expect(wrapper.get('.admin-sider').attributes('style')).toContain('width: 64px')
+        expect(wrapper.find('.admin-sider-mask').exists()).toBe(false)
+        expect(wrapper.find('.admin-nav-drawer').exists()).toBe(false)
+        await wrapper.get('[aria-label="展开侧栏"]').trigger('click')
+        await flushPromises()
+        expect(wrapper.findAll('.admin-sider')).toHaveLength(1)
+        expect(wrapper.get('.admin-sider').classes()).not.toContain('is-collapsed')
+        expect(wrapper.get('.admin-sider').classes()).not.toContain('is-overlay')
+        expect(wrapper.get('.admin-sider').attributes('style')).toContain('width: 208px')
+        expect(wrapper.find('.admin-sider-mask').exists()).toBe(false)
+        expect(wrapper.get('.admin-sider').findAll('.n-menu .n-menu-item')).toHaveLength(8)
+        expect(wrapper.get('[aria-label="折叠侧栏"]').attributes('aria-expanded')).toBe('true')
+        await wrapper.get('[aria-label="折叠侧栏"]').trigger('click')
+        await flushPromises()
+        expect(wrapper.get('.admin-sider').classes()).toContain('is-collapsed')
+        expect(wrapper.get('.admin-sider').attributes('style')).toContain('width: 64px')
+    })
+
     it('长弹窗使用内部滚动，提交期间禁止遮罩和 Esc 关闭', async () => {
         wrapper = mount(AppDialog, {
             attachTo: document.body,
@@ -298,7 +361,7 @@ describe('管理后台组件边界', () => {
         expect(wrapper.classes()).toContain('confirm-action')
         expect(wrapper.classes()).toContain('mt-4')
         expect(wrapper.get('button').text()).toBe('测试操作')
-        expect(readFileSync('src/admin.css', 'utf8')).toMatch(
+        expect(readAllStyles()).toMatch(
             /\.production-pipeline-card > \.confirm-action\s*\{[^}]*margin-block:\s*16px 4px/
         )
     })
diff --git a/src/composables/usePolling.test.ts b/tests/composables/usePolling.test.ts
similarity index 98%
rename from src/composables/usePolling.test.ts
rename to tests/composables/usePolling.test.ts
index 5582b11..09aae0b 100644
--- a/src/composables/usePolling.test.ts
+++ b/tests/composables/usePolling.test.ts
@@ -1,6 +1,6 @@
 import { effectScope, nextTick, ref } from 'vue'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { usePolling } from './usePolling'
+import { usePolling } from '@/composables/usePolling'
 
 afterEach(() => vi.useRealTimers())
 
diff --git a/src/composables/useTheme.test.ts b/tests/composables/useTheme.test.ts
similarity index 98%
rename from src/composables/useTheme.test.ts
rename to tests/composables/useTheme.test.ts
index d16ce4b..0673cb8 100644
--- a/src/composables/useTheme.test.ts
+++ b/tests/composables/useTheme.test.ts
@@ -1,6 +1,6 @@
 import { effectScope, nextTick, type EffectScope } from 'vue'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { useTheme } from './useTheme'
+import { useTheme } from '@/composables/useTheme'
 import { readFileSync } from 'node:fs'
 
 let scope: EffectScope | undefined
@@ -99,7 +99,7 @@ describe('微信风格明暗主题', () => {
     it.each([false, true])('明暗模式 %s 的组件表面、语义色与业务 CSS 一致，主要文字保持可读', dark => {
         const state = setup(dark)
         const { common, Menu, Button, Layout, Input, Select } = state.overrides.value
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readFileSync('src/styles/admin.css', 'utf8')
         const lightTokens = css.match(/:root\s*\{([^}]+)\}/)![1]!
         const darkTokens = css.match(/:root\[data-theme='dark'\]\s*\{([^}]+)\}/)![1]!
         const tokens = Object.fromEntries(
diff --git a/src/features/breakdown/BreakdownPage.test.ts b/tests/features/breakdown/BreakdownPage.test.ts
similarity index 95%
rename from src/features/breakdown/BreakdownPage.test.ts
rename to tests/features/breakdown/BreakdownPage.test.ts
index 52d78f2..585fb30 100644
--- a/src/features/breakdown/BreakdownPage.test.ts
+++ b/tests/features/breakdown/BreakdownPage.test.ts
@@ -3,12 +3,13 @@ import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import { NSelect } from 'naive-ui'
 import { readFileSync } from 'node:fs'
-import BreakdownPage from './BreakdownPage.vue'
-import { projectContextKey, type useProjectData } from '../projects/context'
-import type { ProjectDetail } from '../projects/types'
-import type { Checkpoint } from '../workflows/types'
-import type { BreakdownModule, EpisodePlan } from './types'
-import { drawerPanel, selectMenu } from '../../testing/naive'
+import BreakdownPage from '@/features/breakdown/BreakdownPage.vue'
+import { projectContextKey, type useProjectData } from '@/features/projects/context'
+import type { ProjectDetail } from '@/features/projects/types'
+import type { Checkpoint } from '@/features/workflows/types'
+import type { BreakdownModule, EpisodePlan } from '@/features/breakdown/types'
+import { drawerPanel, selectMenu } from '@/testing/naive'
+import { readAllStyles } from '@/testing/styles'
 
 let wrapper: VueWrapper | undefined
 afterEach(() => {
@@ -176,10 +177,11 @@ describe('拆解页内容滚动', () => {
 
     it('拆解配置按抽屉宽度换行，单位不收缩，三类控件对齐且说明位于控件下方', () => {
         // DOM 环境不计算坐标，检查统一标题偏移、34px 控件行和容器断点契约。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(/\.breakdown-settings-panel\s*\{\s*container:\s*breakdown-settings \/ inline-size;/)
         expect(css).toMatch(/\.breakdown-config\s*\{[^}]*--breakdown-label-offset:\s*28px;/)
-        expect(css).toMatch(/\.breakdown-config \.field-label\s*\{[^}]*margin:\s*0 0 8px;[^}]*line-height:\s*20px;/)
+        expect(css).toMatch(/\.breakdown-config \.field-label\s*\{[^}]*margin(?:-bottom)?:\s*(?:0 0 )?8px/)
+        expect(css).toMatch(/\.breakdown-config \.field-label\s*\{[^}]*line-height:\s*20px/)
         expect(css).toMatch(/\.breakdown-group-unit\s*\{[^}]*flex-shrink:\s*0;[^}]*white-space:\s*nowrap;/)
         expect(css).toMatch(
             /\.n-checkbox\.control-row-checkbox\s*\{[^}]*align-items:\s*center;[^}]*min-height:\s*34px;/
@@ -190,7 +192,7 @@ describe('拆解页内容滚动', () => {
         expect(css).toContain('@container breakdown-settings (max-width: 780px)')
         expect(css).toContain('@container breakdown-settings (max-width: 560px)')
         expect(css).toContain('repeat(auto-fit, minmax(min(100%, 160px), 1fr))')
-        expect(readFileSync('src/styles.css', 'utf8')).not.toContain('.breakdown-config')
+        expect(readFileSync('src/styles/styles.css', 'utf8')).not.toContain('.breakdown-config')
     })
 
     it.each(['人物', '场景', '道具'])('%s 使用共用固定斑马纹样式，搜索后保持列表条目结构', async label => {
@@ -222,7 +224,7 @@ describe('拆解页内容滚动', () => {
 
     it('主体搜索与统计靠左居中，窄内容区可换行，输入框不再使用外置图标容器', () => {
         // DOM 环境不计算布局，保护输入框宽度、主题统计色与窄屏换行的样式契约。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(
             /\.subject-list-toolbar\s*\{[^}]*display:\s*flex;[^}]*flex-wrap:\s*wrap;[^}]*align-items:\s*center;[^}]*justify-content:\s*flex-start;/
         )
@@ -230,7 +232,7 @@ describe('拆解页内容滚动', () => {
             /\.subject-list-search\.n-input\s*\{[^}]*flex:\s*0 1 260px;[^}]*min-width:\s*0;[^}]*max-width:\s*100%;/
         )
         expect(css).toMatch(/\.subject-list-count\s*\{[^}]*color:\s*var\(--app-muted\);/)
-        expect(css + readFileSync('src/styles.css', 'utf8')).not.toContain('.search-field')
+        expect(css + readFileSync('src/styles/styles.css', 'utf8')).not.toContain('.search-field')
     })
 
     it.each([
@@ -277,7 +279,7 @@ describe('拆解页内容滚动', () => {
 
     it('形态块在两种主体条纹上采用相反灰阶，以间距分组且没有整块悬停态', () => {
         // DOM 环境不提供真实主题绘制，检查奇偶行底色、内边距和状态选择器契约。
-        const css = readFileSync('src/styles.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(
             /\.subject-form-card\s*\{[^}]*margin-top:\s*12px;[^}]*padding:\s*16px;[^}]*background:\s*var\(--app-subtle\);/
         )
@@ -289,12 +291,12 @@ describe('拆解页内容滚动', () => {
 
     it('主体奇数行常驻原悬停底色，偶数行不变，整行不再随鼠标或焦点变色', () => {
         // DOM 环境无法模拟浏览器 :hover 命中；检查静态底色与无整行交互选择器的契约。
-        const css = readFileSync('src/styles.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(/\.record-list > article:nth-child\(even\)\s*\{\s*background:\s*var\(--app-subtle\);/)
         expect(css).toMatch(
             /\.subject-record-list > article:nth-child\(odd\)\s*\{\s*background:\s*var\(--app-control\);/
         )
-        expect(css + readFileSync('src/admin.css', 'utf8')).not.toMatch(
+        expect(css + readFileSync('src/styles/admin.css', 'utf8')).not.toMatch(
             /\.subject-record-list[^{}]*(?::hover|:focus-within)/
         )
         // 仅移除整行变色，不影响内部链接、折叠等控件的键盘焦点提示。
@@ -352,7 +354,7 @@ describe('拆解页内容滚动', () => {
 
     it('分镜顶部无叠加操作行，选择标签保持单行且统计操作垂直居中', () => {
         // 仅保护样式契约，DOM 环境不提供真实布局坐标。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(/\.breakdown-storyboard\s*\{[^}]*padding:\s*16px 20px 20px;/)
         expect(css).toMatch(/\.breakdown-episode-picker > span\s*\{[^}]*flex-shrink:\s*0;[^}]*white-space:\s*nowrap;/)
         expect(css).toMatch(/\.breakdown-storyboard-summary\s*\{[^}]*align-items:\s*center;/)
diff --git a/src/features/create-drama/EpisodeReader.test.ts b/tests/features/create-drama/EpisodeReader.test.ts
similarity index 97%
rename from src/features/create-drama/EpisodeReader.test.ts
rename to tests/features/create-drama/EpisodeReader.test.ts
index 27aa2ab..bc8d158 100644
--- a/src/features/create-drama/EpisodeReader.test.ts
+++ b/tests/features/create-drama/EpisodeReader.test.ts
@@ -1,9 +1,9 @@
 import { mount, type VueWrapper } from '@vue/test-utils'
 import { nextTick } from 'vue'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { readFileSync } from 'node:fs'
-import EpisodeReader from './EpisodeReader.vue'
-import type { Episode } from '../projects/types'
+import EpisodeReader from '@/features/create-drama/EpisodeReader.vue'
+import { readAllStyles } from '@/testing/styles'
+import type { Episode } from '@/features/projects/types'
 
 const episodes: Episode[] = [
     { episode: 1, title: '来信', summary: '第一集摘要', content: '第一场：旧书店。', conflict: '信件失踪' },
@@ -64,7 +64,7 @@ function currentEpisode() {
 describe('连续剧本阅读器', () => {
     it('正文容器靠左并保留目录间距，宽屏不再使用自动外边距居中', () => {
         // DOM 测试不计算布局；保护正文定位样式，目录联动仍由后续交互测试验证。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         const content = css.match(/\.reader-content\s*\{([^}]+)\}/)![1]!
         expect(content).toContain('max-width: 900px')
         expect(content).toContain('margin-inline: 0')
diff --git a/src/features/production/capabilities.test.ts b/tests/features/production/capabilities.test.ts
similarity index 93%
rename from src/features/production/capabilities.test.ts
rename to tests/features/production/capabilities.test.ts
index 2617dd4..c8308e8 100644
--- a/src/features/production/capabilities.test.ts
+++ b/tests/features/production/capabilities.test.ts
@@ -1,16 +1,16 @@
 import { defineComponent } from 'vue'
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { projectContextKey } from '../projects/context'
-import { testProjectContext } from '../../testing/project-context'
-import { getOperation } from '../workflows/operations'
-import { formFixture } from '../subject-images/testing/fixtures'
-import { directionsResult } from '../storyboard/testing/fixtures'
-import { checkPipeline, useAdvancedProduction } from './useAdvancedProduction'
-import { useProduction } from './useProduction'
-import { getProductionSession } from './model'
-import AdvancedProduction from './components/AdvancedProduction.vue'
-import { expandSections } from '../../testing/naive'
+import { projectContextKey } from '@/features/projects/context'
+import { testProjectContext } from '@/testing/project-context'
+import { getOperation } from '@/features/workflows/operations'
+import { formFixture } from '@/features/subject-images/testing/fixtures'
+import { directionsResult } from '@/features/storyboard/testing/fixtures'
+import { checkPipeline, useAdvancedProduction } from '@/features/production/useAdvancedProduction'
+import { useProduction } from '@/features/production/useProduction'
+import { getProductionSession } from '@/features/production/model'
+import AdvancedProduction from '@/features/production/components/AdvancedProduction.vue'
+import { expandSections } from '@/testing/naive'
 
 let wrapper: VueWrapper | undefined
 /** 从实际挂载的确认弹窗查找操作按钮。 */
diff --git a/src/features/production/production.test.ts b/tests/features/production/production.test.ts
similarity index 94%
rename from src/features/production/production.test.ts
rename to tests/features/production/production.test.ts
index 1b7a67e..f03e7eb 100644
--- a/src/features/production/production.test.ts
+++ b/tests/features/production/production.test.ts
@@ -1,8 +1,8 @@
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { mediaAssetUrl } from '../../lib/assets'
-import KeyframeDialog from './components/KeyframeDialog.vue'
-import { productionApi } from './api'
+import { mediaAssetUrl } from '@/lib/assets'
+import KeyframeDialog from '@/features/production/components/KeyframeDialog.vue'
+import { productionApi } from '@/features/production/api'
 import {
     isActiveVideo,
     issueLabel,
@@ -10,8 +10,8 @@ import {
     primaryVideo,
     productionStatusLabel,
     validOptionalSize
-} from './model'
-import { keyframeFixture, videoFixture } from './testing/fixtures'
+} from '@/features/production/model'
+import { keyframeFixture, videoFixture } from '@/features/production/testing/fixtures'
 
 let wrapper: VueWrapper | undefined
 afterEach(() => {
diff --git a/src/features/production/quality.test.ts b/tests/features/production/quality.test.ts
similarity index 96%
rename from src/features/production/quality.test.ts
rename to tests/features/production/quality.test.ts
index b562f13..a24b6c0 100644
--- a/src/features/production/quality.test.ts
+++ b/tests/features/production/quality.test.ts
@@ -2,9 +2,9 @@ import { defineComponent, reactive, ref } from 'vue'
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import { NCheckbox, NInputNumber, NRadioGroup } from 'naive-ui'
-import { testProjectContext } from '../../testing/project-context'
-import { productionApi } from './api'
-import { qualityApi } from './quality-api'
+import { testProjectContext } from '@/testing/project-context'
+import { productionApi } from '@/features/production/api'
+import { qualityApi } from '@/features/production/quality-api'
 import {
     allowedTextLines,
     qualityKey,
@@ -13,14 +13,14 @@ import {
     savedVideoValidation,
     videoRepairInfo,
     validQualityInput
-} from './quality'
-import type { KeyframeReadiness } from './types'
-import type { QualityInput, QualityTarget } from './quality.types'
-import { useQuality } from './useQuality'
-import { keyframeFixture, videoFixture } from './testing/fixtures'
-import QualityDialog from './components/QualityDialog.vue'
-import QualityResult from './components/QualityResult.vue'
-import ModelCapabilities from './components/ModelCapabilities.vue'
+} from '@/features/production/quality'
+import type { KeyframeReadiness } from '@/features/production/types'
+import type { QualityInput, QualityTarget } from '@/features/production/quality.types'
+import { useQuality } from '@/features/production/useQuality'
+import { keyframeFixture, videoFixture } from '@/features/production/testing/fixtures'
+import QualityDialog from '@/features/production/components/QualityDialog.vue'
+import QualityResult from '@/features/production/components/QualityResult.vue'
+import ModelCapabilities from '@/features/production/components/ModelCapabilities.vue'
 
 let wrapper: VueWrapper | undefined
 let sequence = 0
diff --git a/src/features/projects/access.test.ts b/tests/features/projects/access.test.ts
similarity index 95%
rename from src/features/projects/access.test.ts
rename to tests/features/projects/access.test.ts
index 541dfba..7f49116 100644
--- a/src/features/projects/access.test.ts
+++ b/tests/features/projects/access.test.ts
@@ -3,11 +3,12 @@ import { createMemoryHistory, createRouter } from 'vue-router'
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import { readFileSync } from 'node:fs'
-import App from '../../App.vue'
-import ProjectLayout from './ProjectLayout.vue'
-import { isProjectComplete } from './access'
-import { projectsApi } from './api'
-import type { ProjectDetail, ProjectStatus } from './types'
+import App from '@/App.vue'
+import ProjectLayout from '@/features/projects/ProjectLayout.vue'
+import { isProjectComplete } from '@/features/projects/access'
+import { projectsApi } from '@/features/projects/api'
+import type { ProjectDetail, ProjectStatus } from '@/features/projects/types'
+import { readAllStyles } from '@/testing/styles'
 
 const downstream = ['breakdown', 'visual-style', 'subject-identity', 'subject-images', 'storyboard', 'production']
 let wrapper: VueWrapper | undefined
@@ -195,12 +196,14 @@ describe('剧本完成前的下游访问限制', () => {
 
     it('配置复选框居中对齐，输入表面随面板背景分层而非增加边框', () => {
         // 保护布局契约；实际像素对齐仍需浏览器视觉验收。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(
             /\.n-checkbox\.control-row-checkbox\s*\{[^}]*align-items:\s*center;[^}]*min-height:\s*34px;[^}]*padding-block:\s*0/
         )
         expect(css).toMatch(/\.app-dialog\s*\{[^}]*--app-field:\s*var\(--app-control\)/)
-        expect(readFileSync('src/styles.css', 'utf8')).toMatch(/\.panel\s*\{[^}]*--app-field:\s*var\(--app-control\)/)
+        expect(readFileSync('src/styles/styles.css', 'utf8')).toMatch(
+            /\.panel\s*\{[^}]*--app-field:\s*var\(--app-control\)/
+        )
         for (const path of [
             'production/ProductionPage.vue',
             'storyboard/StoryboardPage.vue',
diff --git a/src/features/storyboard/directory.test.ts b/tests/features/storyboard/directory.test.ts
similarity index 84%
rename from src/features/storyboard/directory.test.ts
rename to tests/features/storyboard/directory.test.ts
index edcaa2a..b45f7fc 100644
--- a/src/features/storyboard/directory.test.ts
+++ b/tests/features/storyboard/directory.test.ts
@@ -1,8 +1,8 @@
 import { mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it } from 'vitest'
-import { readFileSync } from 'node:fs'
-import BeatShotDirectory from './components/BeatShotDirectory.vue'
-import { designedShot } from './testing/fixtures'
+import BeatShotDirectory from '@/features/storyboard/components/BeatShotDirectory.vue'
+import { readAllStyles } from '@/testing/styles'
+import { designedShot } from '@/features/storyboard/testing/fixtures'
 
 let wrapper: VueWrapper | undefined
 afterEach(() => wrapper?.unmount())
@@ -50,13 +50,14 @@ describe('Beat 两级镜头目录', () => {
 
     it('组内吸顶与移动端归属提示分别保护，不在桌面重复展示 Beat', () => {
         // happy-dom 不计算吸顶位置，保护 CSS 边界，实际滚动仍需浏览器验收。
-        const css = readFileSync('src/admin.css', 'utf8')
+        const css = readAllStyles()
         expect(css).toMatch(
             /\.directory-group-heading\s*\{[^}]*position:\s*sticky;[^}]*top:\s*0;[^}]*background:\s*var\(--app-control\)/
         )
         expect(css).toMatch(/\.directory-mobile-beat\s*\{\s*display:\s*none/)
-        const mobile = css.slice(css.lastIndexOf('@media (max-width: 760px)'))
-        expect(mobile).toMatch(/\.directory-mobile-beat\s*\{\s*display:\s*inline/)
-        expect(mobile).toMatch(/\.beat-directory-group,\s*\.beat-directory-items\s*\{\s*display:\s*contents/)
+        expect(css).toMatch(/@media \(max-width: 760px\)[\s\S]*\.directory-mobile-beat\s*\{\s*display:\s*inline/)
+        expect(css).toMatch(
+            /@media \(max-width: 760px\)[\s\S]*\.beat-directory-group,\s*\.beat-directory-items\s*\{\s*display:\s*contents/
+        )
     })
 })
diff --git a/src/features/storyboard/model.test.ts b/tests/features/storyboard/model.test.ts
similarity index 91%
rename from src/features/storyboard/model.test.ts
rename to tests/features/storyboard/model.test.ts
index 7793461..ad44acf 100644
--- a/src/features/storyboard/model.test.ts
+++ b/tests/features/storyboard/model.test.ts
@@ -1,6 +1,16 @@
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { directionLabel, mergeDesignedShots, referenceImageUrl, storyboardPrerequisites } from './model'
-import { directionsResult, episodeShots, storyboardCheckpoint, visualStatesResult } from './testing/fixtures'
+import {
+    directionLabel,
+    mergeDesignedShots,
+    referenceImageUrl,
+    storyboardPrerequisites
+} from '@/features/storyboard/model'
+import {
+    directionsResult,
+    episodeShots,
+    storyboardCheckpoint,
+    visualStatesResult
+} from '@/features/storyboard/testing/fixtures'
 
 afterEach(() => vi.unstubAllEnvs())
 
diff --git a/src/features/subject-identity/identity.test.ts b/tests/features/subject-identity/identity.test.ts
similarity index 96%
rename from src/features/subject-identity/identity.test.ts
rename to tests/features/subject-identity/identity.test.ts
index 3b671b8..b7524a2 100644
--- a/src/features/subject-identity/identity.test.ts
+++ b/tests/features/subject-identity/identity.test.ts
@@ -1,11 +1,11 @@
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import { NImage, NScrollbar } from 'naive-ui'
-import { AssetImage } from '../../components/ui'
-import IdentityImageDialog from './components/IdentityImageDialog.vue'
-import IdentityGallery from './components/IdentityGallery.vue'
-import CastingCandidateDialog from './components/CastingCandidateDialog.vue'
-import { subjectIdentityApi } from './api'
+import { AssetImage } from '@/components/ui'
+import IdentityImageDialog from '@/features/subject-identity/components/IdentityImageDialog.vue'
+import IdentityGallery from '@/features/subject-identity/components/IdentityGallery.vue'
+import CastingCandidateDialog from '@/features/subject-identity/components/CastingCandidateDialog.vue'
+import { subjectIdentityApi } from '@/features/subject-identity/api'
 import {
     canBeAnchor,
     castingStatusLabel,
@@ -13,10 +13,10 @@ import {
     groupIdentitySubjects,
     mergeCastingSubjects,
     readImageProvenance
-} from './model'
-import { identityImageFixture } from './testing/fixtures'
-import { formFixture } from '../subject-images/testing/fixtures'
-import { expandSections, selectControl } from '../../testing/naive'
+} from '@/features/subject-identity/model'
+import { identityImageFixture } from '@/features/subject-identity/testing/fixtures'
+import { formFixture } from '@/features/subject-images/testing/fixtures'
+import { expandSections, selectControl } from '@/testing/naive'
 
 let wrapper: VueWrapper | undefined
 afterEach(() => {
diff --git a/src/features/subject-identity/thumbnail.test.ts b/tests/features/subject-identity/thumbnail.test.ts
similarity index 97%
rename from src/features/subject-identity/thumbnail.test.ts
rename to tests/features/subject-identity/thumbnail.test.ts
index c7abf97..188646d 100644
--- a/src/features/subject-identity/thumbnail.test.ts
+++ b/tests/features/subject-identity/thumbnail.test.ts
@@ -1,8 +1,8 @@
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest'
 import { NImage } from 'naive-ui'
-import IdentityThumbnail from './components/IdentityThumbnail.vue'
-import { identityFixture, identityImageFixture } from './testing/fixtures'
+import IdentityThumbnail from '@/features/subject-identity/components/IdentityThumbnail.vue'
+import { identityFixture, identityImageFixture } from '@/features/subject-identity/testing/fixtures'
 
 let wrapper: VueWrapper | undefined
 let observers: {
diff --git a/src/features/subject-images/asset-impact.test.ts b/tests/features/subject-images/asset-impact.test.ts
similarity index 97%
rename from src/features/subject-images/asset-impact.test.ts
rename to tests/features/subject-images/asset-impact.test.ts
index c269ee0..a21c15d 100644
--- a/src/features/subject-images/asset-impact.test.ts
+++ b/tests/features/subject-images/asset-impact.test.ts
@@ -2,16 +2,16 @@ import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { createMemoryHistory, createRouter } from 'vue-router'
 import { afterEach, describe, expect, it, vi } from 'vitest'
 import { NSelect } from 'naive-ui'
-import { testProjectContext } from '../../testing/project-context'
-import { projectContextKey } from '../projects/context'
-import { formFixture, imageFixture } from './testing/fixtures'
-import { referenceLocation, referenceTargets } from '../production/asset-links'
-import StaleKeyframeNotice from '../production/components/StaleKeyframeNotice.vue'
-import SubjectImagesPage from './SubjectImagesPage.vue'
-import ProductionPage from '../production/ProductionPage.vue'
-import { directionsResult, storyboardCheckpoint } from '../storyboard/testing/fixtures'
-import type { ProductionIssue } from '../production/types'
-import type { ShotReferences } from '../storyboard/types'
+import { testProjectContext } from '@/testing/project-context'
+import { projectContextKey } from '@/features/projects/context'
+import { formFixture, imageFixture } from '@/features/subject-images/testing/fixtures'
+import { referenceLocation, referenceTargets } from '@/features/production/asset-links'
+import StaleKeyframeNotice from '@/features/production/components/StaleKeyframeNotice.vue'
+import SubjectImagesPage from '@/features/subject-images/SubjectImagesPage.vue'
+import ProductionPage from '@/features/production/ProductionPage.vue'
+import { directionsResult, storyboardCheckpoint } from '@/features/storyboard/testing/fixtures'
+import type { ProductionIssue } from '@/features/production/types'
+import type { ShotReferences } from '@/features/storyboard/types'
 
 let wrapper: VueWrapper | undefined
 afterEach(() => {
diff --git a/src/features/subject-images/images.test.ts b/tests/features/subject-images/images.test.ts
similarity index 95%
rename from src/features/subject-images/images.test.ts
rename to tests/features/subject-images/images.test.ts
index a684e30..c1115b2 100644
--- a/src/features/subject-images/images.test.ts
+++ b/tests/features/subject-images/images.test.ts
@@ -1,12 +1,12 @@
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { AssetImage } from '../../components/ui'
-import { getOperation } from '../workflows/operations'
-import GenerateImageDialog from './components/GenerateImageDialog.vue'
-import ImageGalleryDialog from './components/ImageGalleryDialog.vue'
-import { coverImage, hasRunningImages, primaryImage, validImageSize } from './model'
-import { formFixture, imageFixture } from './testing/fixtures'
-import { expandSections } from '../../testing/naive'
+import { AssetImage } from '@/components/ui'
+import { getOperation } from '@/features/workflows/operations'
+import GenerateImageDialog from '@/features/subject-images/components/GenerateImageDialog.vue'
+import ImageGalleryDialog from '@/features/subject-images/components/ImageGalleryDialog.vue'
+import { coverImage, hasRunningImages, primaryImage, validImageSize } from '@/features/subject-images/model'
+import { formFixture, imageFixture } from '@/features/subject-images/testing/fixtures'
+import { expandSections } from '@/testing/naive'
 
 let wrapper: VueWrapper | undefined
 /** Naive 将弹窗挂载到 body，需要从实际弹窗找到按钮。 */
diff --git a/src/features/subject-images/layout.test.ts b/tests/features/subject-images/layout.test.ts
similarity index 87%
rename from src/features/subject-images/layout.test.ts
rename to tests/features/subject-images/layout.test.ts
index 8e06e47..23afe68 100644
--- a/src/features/subject-images/layout.test.ts
+++ b/tests/features/subject-images/layout.test.ts
@@ -1,6 +1,6 @@
 import { describe, expect, it } from 'vitest'
-import { formCoverAspectRatio } from './layout'
-import { formFixture, imageFixture } from './testing/fixtures'
+import { formCoverAspectRatio } from '@/features/subject-images/layout'
+import { formFixture, imageFixture } from '@/features/subject-images/testing/fixtures'
 
 describe('图库瀑布流图片比例', () => {
     it.each([
diff --git a/src/features/subject-images/prompts.test.ts b/tests/features/subject-images/prompts.test.ts
similarity index 93%
rename from src/features/subject-images/prompts.test.ts
rename to tests/features/subject-images/prompts.test.ts
index 0992601..56d3377 100644
--- a/src/features/subject-images/prompts.test.ts
+++ b/tests/features/subject-images/prompts.test.ts
@@ -1,14 +1,14 @@
 import { defineComponent } from 'vue'
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { projectContextKey } from '../projects/context'
-import { testProjectContext } from '../../testing/project-context'
-import { getOperation } from '../workflows/operations'
-import { formFixture, imageFixture } from './testing/fixtures'
-import { currentIdentityAnchorId, getImageSession, isPrimaryIdentityStale } from './model'
-import { useSubjectImages } from './useSubjectImages'
-import FormPromptDialog from './components/FormPromptDialog.vue'
-import GenerateImageDialog from './components/GenerateImageDialog.vue'
+import { projectContextKey } from '@/features/projects/context'
+import { testProjectContext } from '@/testing/project-context'
+import { getOperation } from '@/features/workflows/operations'
+import { formFixture, imageFixture } from '@/features/subject-images/testing/fixtures'
+import { currentIdentityAnchorId, getImageSession, isPrimaryIdentityStale } from '@/features/subject-images/model'
+import { useSubjectImages } from '@/features/subject-images/useSubjectImages'
+import FormPromptDialog from '@/features/subject-images/components/FormPromptDialog.vue'
+import GenerateImageDialog from '@/features/subject-images/components/GenerateImageDialog.vue'
 
 let wrapper: VueWrapper | undefined
 const projectId = 'capability-test'
diff --git a/src/features/workflows/diagnostics.test.ts b/tests/features/workflows/diagnostics.test.ts
similarity index 97%
rename from src/features/workflows/diagnostics.test.ts
rename to tests/features/workflows/diagnostics.test.ts
index 5d0bee0..abf1228 100644
--- a/src/features/workflows/diagnostics.test.ts
+++ b/tests/features/workflows/diagnostics.test.ts
@@ -1,8 +1,8 @@
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import WorkflowDiagnosticsDialog from './WorkflowDiagnosticsDialog.vue'
-import { loadWorkflowDiagnostics, type WorkflowTimelineGroup } from './diagnostics'
-import type { Checkpoint } from './types'
+import WorkflowDiagnosticsDialog from '@/features/workflows/WorkflowDiagnosticsDialog.vue'
+import { loadWorkflowDiagnostics, type WorkflowTimelineGroup } from '@/features/workflows/diagnostics'
+import type { Checkpoint } from '@/features/workflows/types'
 
 let wrapper: VueWrapper | undefined
 afterEach(() => {
diff --git a/src/features/workflows/operations.test.ts b/tests/features/workflows/operations.test.ts
similarity index 91%
rename from src/features/workflows/operations.test.ts
rename to tests/features/workflows/operations.test.ts
index 2bd0c58..e1c7b1c 100644
--- a/src/features/workflows/operations.test.ts
+++ b/tests/features/workflows/operations.test.ts
@@ -1,5 +1,5 @@
 import { describe, expect, it, vi } from 'vitest'
-import { getOperation, runOperation } from './operations'
+import { getOperation, runOperation } from '@/features/workflows/operations'
 
 describe('项目级长请求互斥', () => {
     it('同一项目不同时执行两个 graph，错误不伪装成功', async () => {
diff --git a/src/features/workflows/pages.test.ts b/tests/features/workflows/pages.test.ts
similarity index 97%
rename from src/features/workflows/pages.test.ts
rename to tests/features/workflows/pages.test.ts
index a1ca29e..03907b4 100644
--- a/src/features/workflows/pages.test.ts
+++ b/tests/features/workflows/pages.test.ts
@@ -3,34 +3,34 @@ import { NImage, NRadioGroup, NScrollbar } from 'naive-ui'
 import { createMemoryHistory, createRouter } from 'vue-router'
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import CreateProjectDialog from '../projects/components/CreateProjectDialog.vue'
-import BreakdownPage from '../breakdown/BreakdownPage.vue'
-import CreateDramaPage from '../create-drama/CreateDramaPage.vue'
-import ProjectsPage from '../projects/ProjectsPage.vue'
-import { projectContextKey, type useProjectData } from '../projects/context'
-import type { ProjectDetail } from '../projects/types'
-import type { Checkpoint } from './types'
-import StoryboardPage from '../storyboard/StoryboardPage.vue'
-import ShotTools from '../storyboard/components/ShotTools.vue'
+import CreateProjectDialog from '@/features/projects/components/CreateProjectDialog.vue'
+import BreakdownPage from '@/features/breakdown/BreakdownPage.vue'
+import CreateDramaPage from '@/features/create-drama/CreateDramaPage.vue'
+import ProjectsPage from '@/features/projects/ProjectsPage.vue'
+import { projectContextKey, type useProjectData } from '@/features/projects/context'
+import type { ProjectDetail } from '@/features/projects/types'
+import type { Checkpoint } from '@/features/workflows/types'
+import StoryboardPage from '@/features/storyboard/StoryboardPage.vue'
+import ShotTools from '@/features/storyboard/components/ShotTools.vue'
 import {
     designedShot,
     directionsResult,
     storyboardCheckpoint,
     visualStatesResult
-} from '../storyboard/testing/fixtures'
-import { getStoryboardSession } from '../storyboard/model'
-import { getOperation } from './operations'
-import SubjectImagesPage from '../subject-images/SubjectImagesPage.vue'
-import { formFixture, imageFixture } from '../subject-images/testing/fixtures'
-import { getImageSession } from '../subject-images/model'
-import VisualStylePage from '../visual-style/VisualStylePage.vue'
-import SubjectIdentityPage from '../subject-identity/SubjectIdentityPage.vue'
-import { styleFixture, styleImageFixture } from '../visual-style/testing/fixtures'
-import { identityFixture, identityImageFixture } from '../subject-identity/testing/fixtures'
-import { getIdentitySession } from '../subject-identity/model'
-import { drawerPanel, expandSections, selectControl, selectMenu } from '../../testing/naive'
-import ProductionPage from '../production/ProductionPage.vue'
-import { getProductionSession } from '../production/model'
+} from '@/features/storyboard/testing/fixtures'
+import { getStoryboardSession } from '@/features/storyboard/model'
+import { getOperation } from '@/features/workflows/operations'
+import SubjectImagesPage from '@/features/subject-images/SubjectImagesPage.vue'
+import { formFixture, imageFixture } from '@/features/subject-images/testing/fixtures'
+import { getImageSession } from '@/features/subject-images/model'
+import VisualStylePage from '@/features/visual-style/VisualStylePage.vue'
+import SubjectIdentityPage from '@/features/subject-identity/SubjectIdentityPage.vue'
+import { styleFixture, styleImageFixture } from '@/features/visual-style/testing/fixtures'
+import { identityFixture, identityImageFixture } from '@/features/subject-identity/testing/fixtures'
+import { getIdentitySession } from '@/features/subject-identity/model'
+import { drawerPanel, expandSections, selectControl, selectMenu } from '@/testing/naive'
+import ProductionPage from '@/features/production/ProductionPage.vue'
+import { getProductionSession } from '@/features/production/model'
 
 /** 新资产页面复用已有项目上下文和内存路由，不接入真实模型。 */
 async function mountAssets(page: 'style' | 'identity', query = '') {
diff --git a/src/features/workflows/selectors.test.ts b/tests/features/workflows/selectors.test.ts
similarity index 94%
rename from src/features/workflows/selectors.test.ts
rename to tests/features/workflows/selectors.test.ts
index 63e5642..f35407d 100644
--- a/src/features/workflows/selectors.test.ts
+++ b/tests/features/workflows/selectors.test.ts
@@ -1,7 +1,7 @@
 import { describe, expect, it } from 'vitest'
-import { breakdownSnapshot, recoveryOptions, workflowCheckpoints } from './selectors'
-import type { Checkpoint } from './types'
-import type { BreakdownState } from '../breakdown/types'
+import { breakdownSnapshot, recoveryOptions, workflowCheckpoints } from '@/features/workflows/selectors'
+import type { Checkpoint } from '@/features/workflows/types'
+import type { BreakdownState } from '@/features/breakdown/types'
 
 /** 只构造测试所需的真实 checkpoint 字段，避免页面依赖虚构 DTO。 */
 function checkpoint(index: number, state: BreakdownState, workflowName = 'breakdown'): Checkpoint {
diff --git a/src/lib/http.test.ts b/tests/lib/http.test.ts
similarity index 96%
rename from src/lib/http.test.ts
rename to tests/lib/http.test.ts
index 1562377..6513c10 100644
--- a/src/lib/http.test.ts
+++ b/tests/lib/http.test.ts
@@ -1,9 +1,9 @@
 import { afterEach, describe, expect, it, vi } from 'vitest'
-import { ApiError, optionalResource, request } from './http'
-import { projectsApi } from '../features/projects/api'
-import { breakdownApi } from '../features/breakdown/api'
-import { storyboardApi } from '../features/storyboard/api'
-import { subjectImagesApi } from '../features/subject-images/api'
+import { ApiError, optionalResource, request } from '@/lib/http'
+import { projectsApi } from '@/features/projects/api'
+import { breakdownApi } from '@/features/breakdown/api'
+import { storyboardApi } from '@/features/storyboard/api'
+import { subjectImagesApi } from '@/features/subject-images/api'
 
 afterEach(() => {
     vi.unstubAllGlobals()
diff --git a/tsconfig.json b/tsconfig.json
index 0fe055b..ff21647 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -13,7 +13,10 @@
         "resolveJsonModule": true,
         "skipLibCheck": true,
         "noEmit": true,
+        "paths": {
+            "@/*": ["./src/*"]
+        },
         "types": ["vite/client", "node"]
     },
-    "include": ["src/**/*.ts", "src/**/*.vue", "*.config.ts"]
+    "include": ["src/**/*.ts", "src/**/*.vue", "tests/**/*.ts", "*.config.ts"]
 }
diff --git a/vite.config.ts b/vite.config.ts
index f6a7606..27a1e75 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -1,3 +1,4 @@
+import { fileURLToPath, URL } from 'node:url'
 import { defineConfig, loadEnv } from 'vite'
 import vue from '@vitejs/plugin-vue'
 import tailwindcss from '@tailwindcss/vite'
@@ -7,6 +8,7 @@ export default defineConfig(({ mode }) => {
     const env = loadEnv(mode, process.cwd(), '')
     return {
         plugins: [vue(), tailwindcss()],
+        resolve: { alias: { '@': fileURLToPath(new URL('./src', import.meta.url)) } },
         server: {
             port: 5173,
             proxy: {
diff --git a/vitest.config.ts b/vitest.config.ts
index 6f0ddc6..44acb0d 100644
--- a/vitest.config.ts
+++ b/vitest.config.ts
@@ -1,5 +1,10 @@
+import { fileURLToPath, URL } from 'node:url'
 import { defineConfig } from 'vitest/config'
 import vue from '@vitejs/plugin-vue'
 
 /** 使用轻量 DOM 测试 API、异步状态和 Vue 页面行为。 */
-export default defineConfig({ plugins: [vue()], test: { environment: 'happy-dom', restoreMocks: true } })
+export default defineConfig({
+    plugins: [vue()],
+    resolve: { alias: { '@': fileURLToPath(new URL('./src', import.meta.url)) } },
+    test: { environment: 'happy-dom', restoreMocks: true }
+})