feat: 优化剧集连续阅读布局与目录滚动联动

src/admin.css

@@ -307,19 +307,158 @@ body {
     grid-template-columns: minmax(0, 1fr) 207px;
 }
 .content-with-history > main,
-.content-with-history > aside,
-.script-page {
+.content-with-history > aside {
     min-height: 0;
     overflow: hidden;
     overscroll-behavior: contain;
 }
-.script-workspace {
-    min-height: 0;
+/* 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。 */
+.script-section .n-tabs-tab__label {
+    display: inline-flex;
+    align-items: center;
+    gap: 8px;
 }
-.episode-list {
-    max-height: none;
+.script-section .content-with-history.history-hidden {
+    grid-template-columns: minmax(0, 1fr);
+    grid-template-rows: minmax(0, 1fr);
+}
+.episode-reader {
+    display: grid;
+    grid-template-columns: clamp(190px, 22%, 240px) minmax(0, 1fr);
+    height: 100%;
+    min-height: 0;
+    min-width: 0;
+    overflow: hidden;
+    container-type: inline-size;
+}
+.reader-directory {
+    display: flex;
+    flex-direction: column;
+    min-height: 0;
+    min-width: 0;
+    background: var(--app-subtle);
+    border-right: 1px solid var(--app-border);
+}
+.reader-directory-heading {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    flex-shrink: 0;
+    gap: 8px;
+    padding: 22px 20px 14px;
+    font-size: 13px;
+}
+.reader-directory-heading h3 {
+    font-weight: 600;
+}
+.reader-directory-heading span {
+    font-size: 11px;
+    color: var(--app-muted);
+    white-space: nowrap;
+}
+.reader-directory-scroll {
+    flex: 1;
+}
+.reader-directory-content {
+    display: flex;
+    flex-direction: column;
+    gap: 6px;
+    padding: 4px 10px 18px;
+}
+.n-button.reader-episode-link {
+    flex-shrink: 0;
+    height: auto;
+    min-height: 64px;
+    padding: 12px 14px;
+    border-radius: 5px;
+    color: var(--app-muted);
+    white-space: normal;
+    text-align: left;
+}
+.n-button.reader-episode-link .n-button__content {
+    display: flex;
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 5px;
+    width: 100%;
+    min-width: 0;
+}
+.reader-episode-label {
+    font-size: 13px;
+    font-weight: 600;
+    line-height: 1.5;
+}
+.reader-episode-title {
+    font-size: 12px;
+    line-height: 1.6;
+    overflow-wrap: anywhere;
+}
+.n-button.reader-episode-link.active {
+    background: var(--app-surface);
+    color: var(--app-ink);
+    box-shadow: inset 3px 0 var(--app-ink);
+}
+.reader-page {
+    min-width: 0;
     min-height: 0;
     overflow: hidden;
+    background: var(--app-surface);
+}
+.reader-scroll .n-scrollbar-container:focus-visible {
+    outline: 2px solid var(--app-ink);
+    outline-offset: -3px;
+}
+.reader-content {
+    max-width: 900px;
+    margin-inline: auto;
+    padding: 32px clamp(24px, 5cqw, 64px);
+}
+.reader-chapter + .reader-chapter {
+    margin-top: 48px;
+    border-top: 1px solid var(--app-border);
+    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);
+    font-size: 13px;
+    font-weight: 500;
+    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;
+    }
+    .reader-directory-content {
+        padding-inline: 6px;
+    }
+    .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 {
@@ -335,16 +474,13 @@ body {
 .production-detail,
 .storyboard-detail,
 .shot-list,
-.episode-list,
 .content-with-history > main {
     min-width: 0;
     min-height: 0;
 }
-.script-page,
 .history-panel,
 .production-shot-list,
-.shot-list,
-.episode-list {
+.shot-list {
     padding: 0;
 }
 .production-shot-list-content {
@@ -353,25 +489,17 @@ body {
 .shot-list-content {
     padding: 0 8px 20px;
 }
-.episode-list-content {
-    padding: 0 7px 20px;
-}
-.script-page-content {
-    padding: 36px 40px;
-}
 .history-content {
     padding: 23px 21px;
 }
 .production-shot-list-content,
 .shot-list-content,
-.episode-list-content,
 .identity-subject-list-content {
     display: flex;
     flex-direction: column;
 }
 .n-button.production-shot-link,
 .n-button.shot-link,
-.n-button.episode-link,
 .n-button.identity-subject-item {
     display: flex;
     width: 100%;
@@ -480,7 +608,6 @@ body {
 .n-button:disabled {
     opacity: 1;
 }
-.n-button.episode-link,
 .n-button.shot-link,
 .n-button.production-shot-link,
 .n-button.identity-subject-item,
@@ -489,7 +616,6 @@ body {
     height: auto;
     white-space: normal;
 }
-.n-button.episode-link .n-button__content,
 .n-button.shot-link .n-button__content {
     width: 100%;
     justify-content: flex-start;
@@ -507,7 +633,6 @@ body {
     width: 100%;
     justify-content: space-between;
 }
-.n-button.episode-link .n-button__border,
 .n-button.shot-link .n-button__border,
 .n-button.production-shot-link .n-button__border,
 .n-button.identity-subject-item .n-button__border {
@@ -651,23 +776,6 @@ body {
         overflow: hidden;
         min-height: 0;
     }
-    .script-workspace {
-        grid-template-columns: 105px minmax(0, 1fr);
-    }
-    .episode-list {
-        display: block;
-        padding: 0;
-        border-right: 1px solid var(--app-border);
-    }
-    .episode-link {
-        width: 100%;
-    }
-    .script-page {
-        padding: 0;
-    }
-    .script-page-content {
-        padding: 18px;
-    }
     .project-search {
         width: 100%;
     }

src/features/create-drama/CreateDramaPage.vue

@@ -2,7 +2,7 @@
 import WorkspacePage from '../../components/ui/WorkspacePage.vue'
 import { NScrollbar, NButton, NCollapse, NCollapseItem, NProgress, NTab, NTabs, NTag } from 'naive-ui'
 import { computed, ref } from 'vue'
-import { ArrowRight, Download, Check, Circle } from '@lucide/vue'
+import { ArrowRight, Download, Check, Circle, History } from '@lucide/vue'
 import { EmptyState } from '../../components/ui'
 import { useProjectContext } from '../projects/context'
 import { projectsApi } from '../projects/api'
@@ -11,15 +11,15 @@ import { getOperation, runOperation } from '../workflows/operations'
 import HistoryPanel from '../workflows/HistoryPanel.vue'
 import ConfirmAction from '../workflows/ConfirmAction.vue'
 import { downloadText, formatDate } from '../../lib/format'
+import EpisodeReader from './EpisodeReader.vue'
 
 /** 剧本创作工作区，正式数据库内容为准，checkpoint 只补充计划与恢复信息。 */
 const { project, checkpoints, refresh, error } = useProjectContext()
-const selected = ref<number>()
 const tab = ref('episodes')
+const showHistory = ref(false)
 const dramaRecords = computed(() => workflowCheckpoints(checkpoints.value, 'create-drama'))
 const state = computed(() => dramaRecords.value.at(-1)?.state)
 const episodes = computed(() => project.value?.episodes ?? [])
-const episode = computed(() => episodes.value.find(item => item.episode === selected.value) ?? episodes.value[0])
 const total = computed(() => state.value?.episodeCount)
 const operation = computed(() => getOperation(project.value!.id))
 const complete = computed(() => project.value?.status === 'completed')
@@ -123,6 +123,9 @@ function exportScript() {
                     ><NTab name="review">审核记录</NTab></NTabs
                 >
                 <div class="flex items-center gap-3">
+                    <NButton text size="small" :aria-expanded="showHistory" @click="showHistory = !showHistory"
+                        ><History :size="14" />{{ showHistory ? '收起执行记录' : '执行记录' }}</NButton
+                    >
                     <NButton :disabled="!episodes.length" @click="exportScript" text size="small"
                         ><Download :size="14" />导出剧本</NButton
                     ><RouterLink
@@ -133,49 +136,14 @@ function exportScript() {
                     /></RouterLink>
                 </div>
             </div>
-            <div class="content-with-history panel mt-4">
+            <div class="content-with-history panel mt-4" :class="{ 'history-hidden': !showHistory }">
                 <main class="min-w-0">
-                    <div v-if="tab === 'episodes'" class="h-full">
-                        <div v-if="episode" class="script-workspace">
-                            <aside class="episode-list">
-                                <NScrollbar class="panel-scroll" content-class="episode-list-content">
-                                    <p class="px-4 pb-3 pt-5 text-[11px] font-medium tracking-wider text-muted">
-                                        剧集目录
-                                    </p>
-                                    <NButton
-                                        v-for="item in episodes"
-                                        :key="item.episode"
-                                        :aria-pressed="episode.episode === item.episode"
-                                        @click="selected = item.episode"
-                                        class="episode-link"
-                                        :class="{ active: episode.episode === item.episode }"
-                                        ><span class="episode-number">{{ String(item.episode).padStart(2, '0') }}</span
-                                        ><span class="truncate">{{ item.title }}</span></NButton
-                                    >
-                                </NScrollbar>
-                            </aside>
-                            <article class="script-page">
-                                <NScrollbar class="panel-scroll" content-class="script-page-content">
-                                    <p class="eyebrow">第 {{ String(episode.episode).padStart(2, '0') }} 集</p>
-                                    <h2 class="mt-3 text-2xl font-semibold">{{ episode.title }}</h2>
-                                    <p v-if="episode.summary" class="script-summary">{{ episode.summary }}</p>
-                                    <div class="script-body">{{ episode.content }}</div>
-                                    <dl v-if="episode.conflict || episode.hook" class="script-notes">
-                                        <template v-if="episode.conflict"
-                                            ><dt>核心冲突</dt>
-                                            <dd>{{ episode.conflict }}</dd></template
-                                        ><template v-if="episode.hook"
-                                            ><dt>结尾钩子</dt>
-                                            <dd>{{ episode.hook }}</dd></template
-                                        >
-                                    </dl>
-                                </NScrollbar>
-                            </article>
-                        </div>
+                    <div v-show="tab === 'episodes'" class="h-full">
+                        <EpisodeReader v-if="episodes.length" :episodes="episodes" />
                         <EmptyState
                             v-else
                             title="剧本正在酝酿"
-                            description="剧集写入数据库后会自动出现在这里。角色与世界观生成期间，可以在右侧查看已保存的执行记录。"
+                            description="剧集写入数据库后会自动出现在这里。角色与世界观生成期间，可展开执行记录查看进度。"
                         />
                     </div>
                     <NScrollbar v-if="tab !== 'episodes'" class="panel-scroll"
@@ -274,7 +242,7 @@ function exportScript() {
                         </div>
                     </NScrollbar>
                 </main>
-                <HistoryPanel :checkpoints="checkpoints" workflow="create-drama" />
+                <HistoryPanel v-if="showHistory" :checkpoints="checkpoints" workflow="create-drama" />
             </div></div
     ></WorkspacePage>
 </template>

src/features/create-drama/EpisodeReader.test.ts

@@ -0,0 +1,184 @@
+import { mount, type VueWrapper } from '@vue/test-utils'
+import { nextTick } from 'vue'
+import { afterEach, describe, expect, it, vi } from 'vitest'
+import EpisodeReader from './EpisodeReader.vue'
+import type { Episode } from '../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' },
+    { episode: 2, title: '雨夜', content: '<script>不要执行模型内容</script>', hook: '门外有人' },
+    { episode: 3, title: '重逢', content: '' }
+]
+let wrapper: VueWrapper | undefined
+
+afterEach(() => {
+    wrapper?.unmount()
+    wrapper = undefined
+    vi.restoreAllMocks()
+    vi.unstubAllGlobals()
+})
+
+/** happy-dom 不计算排版；注入明确的容器几何，但保持真实 NScrollbar 和原生 scroll 事件路径。 */
+async function mountReader() {
+    wrapper = mount(EpisodeReader, { props: { episodes } })
+    const reader = wrapper.get<HTMLElement>('.reader-scroll .n-scrollbar-container').element
+    const directory = wrapper.get<HTMLElement>('.reader-directory-scroll .n-scrollbar-container').element
+    const tops: Record<number, number> = { 1: 32, 2: 700, 3: 1480 }
+    Object.defineProperty(reader, 'clientHeight', { configurable: true, value: 400 })
+    Object.defineProperty(directory, 'clientHeight', { configurable: true, value: 164 })
+    const originalRect = HTMLElement.prototype.getBoundingClientRect
+    vi.spyOn(HTMLElement.prototype, 'getBoundingClientRect').mockImplementation(function (this: HTMLElement) {
+        if (this === reader) return new DOMRect(0, 100, 600, reader.clientHeight)
+        if (this === directory) return new DOMRect(0, 50, 200, directory.clientHeight)
+        if (this.matches('.reader-chapter')) {
+            return new DOMRect(0, 100 + tops[Number(this.dataset.episode)]! - reader.scrollTop, 600, 600)
+        }
+        if (this.matches('.reader-episode-link')) {
+            return new DOMRect(0, 58 + (Number(this.dataset.episode) - 1) * 72 - directory.scrollTop, 180, 64)
+        }
+        return originalRect.call(this)
+    })
+    const readerScroll = vi.spyOn(reader, 'scrollTo').mockImplementation((options?: ScrollToOptions | number) => {
+        if (typeof options !== 'object') return
+        // 模拟浏览器边界：末集最小高度及上下留白让其标题能抵达阅读线。
+        reader.scrollTop = Math.max(0, Math.min(options.top ?? 0, Math.max(...Object.values(tops)) - 32))
+        reader.dispatchEvent(new Event('scroll'))
+    })
+    const directoryScroll = vi.spyOn(directory, 'scrollTo').mockImplementation((options?: ScrollToOptions | number) => {
+        if (typeof options !== 'object') return
+        directory.scrollTop = Math.max(0, options.top ?? 0)
+        directory.dispatchEvent(new Event('scroll'))
+    })
+    await wrapper.setProps({ episodes: [...episodes] })
+    return { reader, directory, tops, readerScroll, directoryScroll }
+}
+
+/** 获取目录中的唯一当前集，避免只验证按钮类名而漏掉无障碍状态。 */
+function currentEpisode() {
+    const current = wrapper!.findAll('.reader-episode-link[aria-current="location"]')
+    expect(current).toHaveLength(1)
+    return Number(current[0]!.attributes('data-episode'))
+}
+
+describe('连续剧本阅读器', () => {
+    it('按编号连续渲染全部剧集、元数据和空正文，标题不截断，模型内容只按文本显示', () => {
+        const reversed = episodes.toReversed()
+        wrapper = mount(EpisodeReader, { props: { episodes: reversed } })
+        expect(wrapper.findAll('.reader-chapter').map(item => Number(item.attributes('data-episode')))).toEqual([
+            1, 2, 3
+        ])
+        expect(reversed[0]?.episode).toBe(3)
+        expect(wrapper.findAll('.reader-chapter .script-body')).toHaveLength(2)
+        expect(wrapper.get('.script-summary').text()).toBe('第一集摘要')
+        expect(wrapper.text()).toContain('信件失踪')
+        expect(wrapper.text()).toContain('门外有人')
+        expect(wrapper.text()).toContain('本集正文尚未写入')
+        expect(wrapper.text()).toContain('<script>不要执行模型内容</script>')
+        expect(wrapper.find('script').exists()).toBe(false)
+        expect(wrapper.findAll('.n-scrollbar-container')).toHaveLength(2)
+        expect(wrapper.get('.reader-scroll [role="region"]').attributes('tabindex')).toBe('0')
+        expect(wrapper.get('.reader-episode-link').attributes('aria-controls')).toBe(
+            wrapper.get('.reader-chapter').attributes('id')
+        )
+    })
+
+    it('点击目录通过 NScrollbar 定位首集、中间集和短末集，不滚动 window', async () => {
+        const { reader, readerScroll } = await mountReader()
+        const pageScroll = vi.spyOn(window, 'scrollTo')
+        for (const [episode, top] of [
+            [2, 668],
+            [3, 1448],
+            [1, 0]
+        ] as const) {
+            await wrapper!.get(`.reader-episode-link[data-episode="${episode}"]`).trigger('click')
+            expect(readerScroll).toHaveBeenLastCalledWith(expect.objectContaining({ top, behavior: 'auto' }))
+            expect(reader.scrollTop).toBe(top)
+            expect(currentEpisode()).toBe(episode)
+        }
+        expect(pageScroll).not.toHaveBeenCalled()
+    })
+
+    it('正文双向滚动同步当前集，目录项离开可见区时自动露出', async () => {
+        const { reader, directory, directoryScroll } = await mountReader()
+        reader.scrollTop = 1450
+        reader.dispatchEvent(new Event('scroll'))
+        await nextTick()
+        expect(currentEpisode()).toBe(3)
+        expect(directoryScroll).toHaveBeenCalled()
+        expect(directory.scrollTop).toBeGreaterThan(0)
+        reader.scrollTop = 0
+        reader.dispatchEvent(new Event('scroll'))
+        await nextTick()
+        expect(currentEpisode()).toBe(1)
+        expect(directory.scrollTop).toBe(0)
+    })
+
+    it('同集内阅读不反复挪动目录，也不因目录滚动而改变正文', async () => {
+        const { reader, directory, directoryScroll, readerScroll } = await mountReader()
+        directory.scrollTop = 60
+        directory.dispatchEvent(new Event('scroll'))
+        reader.scrollTop = 120
+        reader.dispatchEvent(new Event('scroll'))
+        await nextTick()
+        expect(currentEpisode()).toBe(1)
+        expect(directory.scrollTop).toBe(60)
+        expect(directoryScroll).not.toHaveBeenCalled()
+        expect(readerScroll).not.toHaveBeenCalled()
+    })
+
+    it('后台刷新与追加剧集不销毁正文或跳回首集，新增集可以定位', async () => {
+        const { reader, tops } = await mountReader()
+        await wrapper!.get('.reader-episode-link[data-episode="2"]').trigger('click')
+        const chapter = wrapper!.get('.reader-chapter[data-episode="2"]').element
+        tops[4] = 2200
+        await wrapper!.setProps({
+            episodes: [...episodes.map(item => ({ ...item })), { episode: 4, title: '回家', content: '结局' }]
+        })
+        expect(reader.scrollTop).toBe(668)
+        expect(currentEpisode()).toBe(2)
+        expect(wrapper!.get('.reader-chapter[data-episode="2"]').element).toBe(chapter)
+        await wrapper!.get('.reader-episode-link[data-episode="4"]').trigger('click')
+        expect(reader.scrollTop).toBe(2168)
+        expect(currentEpisode()).toBe(4)
+    })
+
+    it('内容尺寸和可见性变化重新测量，卸载释放尺寸监听', async () => {
+        const observers: TestObserver[] = []
+        /** 仅模拟尺寸通知；断言仍走真实组件挂载与卸载生命周期。 */
+        class TestObserver {
+            targets = new Set<Element>()
+            constructor(readonly callback: ResizeObserverCallback) {
+                observers.push(this)
+            }
+            observe(target: Element) {
+                this.targets.add(target)
+            }
+            unobserve(target: Element) {
+                this.targets.delete(target)
+            }
+            disconnect = vi.fn<() => void>(() => this.targets.clear())
+            notify() {
+                this.callback([], this as unknown as ResizeObserver)
+            }
+        }
+        vi.stubGlobal('ResizeObserver', TestObserver)
+        const { reader, tops } = await mountReader()
+        const observer = observers.find(item => item.targets.has(wrapper!.get('.reader-content').element))!
+        expect(observer).toBeDefined()
+        await wrapper!.get('.reader-episode-link[data-episode="2"]').trigger('click')
+        Object.defineProperty(reader, 'clientHeight', { configurable: true, value: 0 })
+        observer.notify()
+        await nextTick()
+        expect(currentEpisode()).toBe(2)
+        Object.defineProperty(reader, 'clientHeight', { configurable: true, value: 500 })
+        tops[2] = 500
+        observer.notify()
+        await nextTick()
+        expect(wrapper!.get('.reader-content').attributes('style')).toContain('--reader-height: 500px')
+        await wrapper!.get('.reader-episode-link[data-episode="2"]').trigger('click')
+        expect(reader.scrollTop).toBe(468)
+        wrapper!.unmount()
+        wrapper = undefined
+        expect(observer.disconnect).toHaveBeenCalledOnce()
+    })
+})

src/features/create-drama/EpisodeReader.vue

@@ -0,0 +1,168 @@
+<script setup lang="ts">
+import { NButton, NScrollbar, type ScrollbarInst } from 'naive-ui'
+import { computed, onBeforeUnmount, onMounted, ref, useId, watch } from 'vue'
+import type { Episode } from '../projects/types'
+
+/** 连续剧本阅读器：目录与正文独立滚动，导航仅影响本阅读器。 */
+const props = defineProps<{ episodes: Episode[] }>()
+const orderedEpisodes = computed(() => props.episodes.toSorted((a, b) => a.episode - b.episode))
+const active = ref(orderedEpisodes.value[0]?.episode)
+const directory = ref<ScrollbarInst>()
+const reader = ref<ScrollbarInst>()
+const directoryContent = ref<HTMLElement>()
+const readerContent = ref<HTMLElement>()
+const viewportHeight = ref(400)
+const readerId = useId()
+const readingInset = 32
+let viewport: HTMLElement | null = null
+let directoryViewport: HTMLElement | null = null
+let observer: ResizeObserver | undefined
+
+/** 缓存章节在正文滚动容器中的位置，滚动事件不逐集触发布局测量。 */
+let positions: { episode: number; top: number }[] = []
+
+/** Naive 的公开实例仅提供滚动方法；从自身内容定位容器，不访问私有实例或全局 DOM。 */
+function scrollContainer(content: HTMLElement | undefined) {
+    return content?.closest<HTMLElement>('.n-scrollbar-container') ?? null
+}
+
+/** 只在当前目录项离开可见区时调整目录，避免带动页面或打断手动浏览目录。 */
+function revealActive() {
+    const item = directoryContent.value?.querySelector<HTMLElement>(`[data-episode="${active.value}"]`)
+    if (!item || !directoryViewport?.clientHeight) return
+    const bounds = directoryViewport.getBoundingClientRect()
+    const rect = item.getBoundingClientRect()
+    if (rect.top < bounds.top + 8) {
+        directory.value?.scrollTo({ top: directoryViewport.scrollTop + rect.top - bounds.top - 8 })
+    } else if (rect.bottom > bounds.bottom - 8) {
+        directory.value?.scrollTo({ top: directoryViewport.scrollTop + rect.bottom - bounds.bottom + 8 })
+    }
+}
+
+/** 以正文顶部的阅读线确定当前集；末集保留足够高度，也能定位到顶部。 */
+function syncActive() {
+    if (!viewport?.clientHeight || !positions.length) return
+    const readingLine = Math.max(0, viewport.scrollTop) + readingInset + 2
+    let current = positions[0]!.episode
+    for (const item of positions) {
+        if (item.top > readingLine) break
+        current = item.episode
+    }
+    active.value = current
+}
+
+/** 内容或面板尺寸变化时重测；隐藏标签不覆盖缓存和已有阅读位置。 */
+function measure() {
+    if (!viewport?.clientHeight || !readerContent.value) return
+    viewportHeight.value = viewport.clientHeight
+    const origin = viewport.getBoundingClientRect().top - viewport.scrollTop
+    positions = [...readerContent.value.querySelectorAll<HTMLElement>('[data-episode]')].map(item => ({
+        episode: Number(item.dataset.episode),
+        top: item.getBoundingClientRect().top - origin
+    }))
+    syncActive()
+}
+
+/** 点击目录使用组件公开方法即时定位，避免长距离平滑滚动经过多集时高亮闪烁。 */
+function selectEpisode(episode: number) {
+    measure()
+    const position = positions.find(item => item.episode === episode)
+    if (!position) return
+    reader.value?.scrollTo({ top: Math.max(0, position.top - readingInset), behavior: 'auto' })
+    active.value = episode
+    revealActive()
+}
+
+watch(active, revealActive, { flush: 'post' })
+watch(
+    orderedEpisodes,
+    items => {
+        if (!items.some(item => item.episode === active.value)) active.value = items[0]?.episode
+        measure()
+    },
+    { flush: 'post', deep: true }
+)
+
+onMounted(() => {
+    viewport = scrollContainer(readerContent.value)
+    directoryViewport = scrollContainer(directoryContent.value)
+    // 让键盘直接聚焦真正的滚动区域，方向键、PageDown 和 Home/End 均由浏览器处理。
+    if (viewport) {
+        viewport.tabIndex = 0
+        viewport.setAttribute('role', 'region')
+        viewport.setAttribute('aria-label', '全部剧集正文')
+    }
+    measure()
+    observer = new ResizeObserver(() => {
+        measure()
+        revealActive()
+    })
+    if (viewport) observer.observe(viewport)
+    if (readerContent.value) observer.observe(readerContent.value)
+    if (directoryViewport) observer.observe(directoryViewport)
+})
+
+onBeforeUnmount(() => observer?.disconnect())
+</script>
+
+<template>
+    <div class="episode-reader">
+        <nav class="reader-directory" aria-label="剧集目录">
+            <div class="reader-directory-heading">
+                <h3>分集剧本</h3>
+                <span>{{ orderedEpisodes.length }} 集</span>
+            </div>
+            <NScrollbar ref="directory" class="panel-scroll reader-directory-scroll">
+                <div ref="directoryContent" class="reader-directory-content">
+                    <NButton
+                        v-for="item in orderedEpisodes"
+                        :key="item.episode"
+                        quaternary
+                        block
+                        class="reader-episode-link"
+                        :class="{ active: active === item.episode }"
+                        :data-episode="item.episode"
+                        :aria-current="active === item.episode ? 'location' : undefined"
+                        :aria-controls="`${readerId}-episode-${item.episode}`"
+                        @click="selectEpisode(item.episode)"
+                    >
+                        <span class="reader-episode-label">第 {{ item.episode }} 集</span>
+                        <span class="reader-episode-title">{{ item.title || '未命名剧集' }}</span>
+                    </NButton>
+                </div>
+            </NScrollbar>
+        </nav>
+        <div class="reader-page">
+            <NScrollbar ref="reader" class="panel-scroll reader-scroll" @scroll="syncActive">
+                <div ref="readerContent" class="reader-content" :style="{ '--reader-height': `${viewportHeight}px` }">
+                    <section
+                        v-for="item in orderedEpisodes"
+                        :id="`${readerId}-episode-${item.episode}`"
+                        :key="item.episode"
+                        :data-episode="item.episode"
+                        :aria-labelledby="`${readerId}-heading-${item.episode}`"
+                        class="reader-chapter"
+                    >
+                        <header class="reader-chapter-heading">
+                            <p>第 {{ item.episode }} 集</p>
+                            <h2 :id="`${readerId}-heading-${item.episode}`">{{ item.title || '未命名剧集' }}</h2>
+                        </header>
+                        <p v-if="item.summary" class="script-summary">{{ item.summary }}</p>
+                        <div v-if="item.content" class="script-body">{{ item.content }}</div>
+                        <p v-else class="text-sm text-muted">本集正文尚未写入。</p>
+                        <dl v-if="item.conflict || item.hook" class="script-notes">
+                            <template v-if="item.conflict"
+                                ><dt>核心冲突</dt>
+                                <dd>{{ item.conflict }}</dd></template
+                            >
+                            <template v-if="item.hook"
+                                ><dt>结尾钩子</dt>
+                                <dd>{{ item.hook }}</dd></template
+                            >
+                        </dl>
+                    </section>
+                </div>
+            </NScrollbar>
+        </div>
+    </div>
+</template>

src/features/workflows/pages.test.ts

@@ -1,4 +1,4 @@
-import { computed, ref } from 'vue'
+import { computed, nextTick, ref } from 'vue'
 import { NScrollbar } from 'naive-ui'
 import { createMemoryHistory, createRouter } from 'vue-router'
 import { flushPromises, mount, type VueWrapper } from '@vue/test-utils'
@@ -1134,6 +1134,35 @@ describe('工作台页面交互', () => {
         expect(provided.refresh).toHaveBeenCalledOnce()
     })
 
+    it('切换剧本标签保留阅读容器和位置，执行记录按需展开', async () => {
+        wrapper = mount(CreateDramaPage, {
+            attachTo: document.body,
+            global: { provide: { [projectContextKey as symbol]: context() }, stubs: { RouterLink: true } }
+        })
+        const reader = wrapper.get<HTMLElement>('.reader-scroll .n-scrollbar-container').element
+        reader.scrollTop = 120
+        expect(wrapper.find('.history-panel').exists()).toBe(false)
+        await wrapper
+            .findAll('.n-tabs-tab')
+            .find(item => item.text() === '角色设定')!
+            .trigger('click')
+        expect(wrapper.get('.episode-reader').isVisible()).toBe(false)
+        await wrapper
+            .findAll('.n-tabs-tab')
+            .find(item => item.text().includes('剧集正文'))!
+            .trigger('click')
+        expect(wrapper.get('.episode-reader').isVisible()).toBe(true)
+        expect(wrapper.get('.reader-scroll .n-scrollbar-container').element).toBe(reader)
+        expect(reader.scrollTop).toBe(120)
+        button('执行记录').click()
+        await nextTick()
+        expect(wrapper.find('.history-panel').exists()).toBe(true)
+        expect(wrapper.get('.content-with-history').classes()).not.toContain('history-hidden')
+        button('收起执行记录').click()
+        await nextTick()
+        expect(wrapper.find('.history-panel').exists()).toBe(false)
+    })
+
     it('剧本文本按纯文本显示，不执行模型输出的 HTML', () => {
         wrapper = mount(CreateDramaPage, {
             attachTo: document.body,

src/styles.css

@@ -665,47 +665,6 @@
             11px/1.9 ui-monospace,
             monospace;
     }
-    .script-workspace {
-        display: grid;
-        grid-template-columns: 166px minmax(0, 1fr);
-        height: 100%;
-    }
-    .episode-list {
-        border-right: 1px solid var(--color-line);
-        padding: 0 7px 20px;
-        background: var(--app-surface);
-        max-height: 850px;
-        overflow: hidden;
-    }
-    .episode-link {
-        display: flex;
-        align-items: center;
-        gap: 9px;
-        width: 100%;
-        text-align: left;
-        padding: 11px 9px;
-        border-radius: 4px;
-        font-size: 11px;
-        color: var(--color-muted);
-    }
-    .episode-link:hover {
-        background: var(--app-subtle);
-    }
-    .episode-link.active {
-        color: var(--app-ink);
-        background: var(--app-subtle);
-        font-weight: 500;
-    }
-    .episode-number {
-        font:
-            10px ui-monospace,
-            monospace;
-        opacity: 0.7;
-    }
-    .script-page {
-        padding: 34px 34px 50px;
-        min-width: 0;
-    }
     .script-summary {
         font-size: 12px;
         color: var(--color-muted);
@@ -918,29 +877,6 @@
         font-size: 23px;
     }
 
-    .script-workspace {
-        grid-template-columns: minmax(0, 1fr);
-    }
-    .episode-list {
-        display: flex;
-        overflow: hidden;
-        border-right: 0;
-        border-bottom: 1px solid var(--color-line);
-        padding: 8px;
-        gap: 4px;
-    }
-    .episode-list > p {
-        display: none;
-    }
-    .episode-link {
-        width: auto;
-        max-width: 170px;
-        flex-shrink: 0;
-    }
-    .script-page {
-        padding: 25px 20px 35px;
-    }
-
     .breakdown-config {
         grid-template-columns: minmax(0, 1fr);
     }