diff --git a/README.en.md b/README.en.md
index 12509d6..3e09604 100644
--- a/README.en.md
+++ b/README.en.md
@@ -44,19 +44,17 @@ Novel Codex Writer uses **Markdown as the source of truth**, combined with a cur
 
 ## Product preview
 
-> The following graphics are conceptual placeholders based on the current product structure, not captured application screenshots.
+### Chapter writing brief
 
-### Multi-project library
-
-![Library concept](docs/images/01-library-dashboard.svg)
+![Chapter writing brief](docs/images/01-writing-task.png)
 
 ### Drafting and AI review
 
-![Editor and review concept](docs/images/02-editor-review.svg)
+![Drafting and AI review](docs/images/02-editor-review.png)
 
-### Long-term memory and current state
+### Story timeline and long-term memory
 
-![Memory dashboard concept](docs/images/03-memory-dashboard.svg)
+![Story timeline and long-term memory](docs/images/03-timeline.png)
 
 ## How it works
 
diff --git a/README.md b/README.md
index 024c484..00baa18 100644
--- a/README.md
+++ b/README.md
@@ -44,19 +44,17 @@ Novel Codex Writer 通过 **Markdown 事实源 + 当前状态投影 + 可重建
 
 ## 产品预览
 
-> 以下为根据当前功能和数据结构制作的概念占位图，并非真实运行截图。后续可直接用相同文件名替换为实际截图，README 无需再次修改。
+### 本章写作任务书
 
-### 多作品管理
-
-![作品库概念图](docs/images/01-library-dashboard.svg)
+![本章写作任务书](docs/images/01-writing-task.png)
 
 ### 正文编辑与 AI 审校
 
-![正文编辑与审校概念图](docs/images/02-editor-review.svg)
+![正文编辑与 AI 审校](docs/images/02-editor-review.png)
 
-### 长期记忆与当前状态
+### 小说时间线与长期记忆
 
-![长期记忆概念图](docs/images/03-memory-dashboard.svg)
+![小说时间线与长期记忆](docs/images/03-timeline.png)
 
 ## 它如何工作
 
diff --git a/docs/images/01-library-dashboard.svg b/docs/images/01-library-dashboard.svg
deleted file mode 100644
index 21468ec..0000000
--- a/docs/images/01-library-dashboard.svg
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new file mode 100644
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index 83a4b9a..0000000
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-<rect x="322" y="238" width="46" height="46" rx="12" fill="#EEEAFE"/><circle cx="345" cy="261" r="4" fill="#6C5CE7"/><text x="385" y="260" font-size="18" class="m">活跃角色</text><text x="385" y="302" font-size="28" fill="#6C5CE7" font-family="Noto Sans CJK SC, Microsoft YaHei, Arial, sans-serif">12</text><text x="322" y="338" font-size="15" class="m">林序、谢青衣、段无尘…</text>
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-<rect x="910" y="215" width="285" height="145" rx="18" fill="#FFFFFF" stroke="#E7E9F0"/>
-<rect x="932" y="238" width="46" height="46" rx="12" fill="#FFF4E5"/><circle cx="955" cy="261" r="4" fill="#F59E0B"/><text x="995" y="260" font-size="18" class="m">活跃伏笔</text><text x="995" y="302" font-size="28" fill="#F59E0B" font-family="Noto Sans CJK SC, Microsoft YaHei, Arial, sans-serif">18</text><text x="932" y="338" font-size="15" class="m">血玉、雨城钟声、失踪卷宗…</text>
-<rect x="1215" y="215" width="285" height="145" rx="18" fill="#FFFFFF" stroke="#E7E9F0"/>
-<rect x="1237" y="238" width="46" height="46" rx="12" fill="#EAF2FF"/><circle cx="1260" cy="261" r="4" fill="#3B82F6"/><text x="1300" y="260" font-size="18" class="m">时间线</text><text x="1300" y="302" font-size="28" fill="#3B82F6" font-family="Noto Sans CJK SC, Microsoft YaHei, Arial, sans-serif">第 42 章</text><text x="1237" y="338" font-size="15" class="m">雨城封门后的第一夜</text>
-<rect x="300" y="390" width="1215" height="435" rx="18" fill="#FFFFFF" stroke="#E7E9F0"/>
-<text x="330" y="450" font-size="22" class="t">当前状态投影</text>
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-<text x="330" y="498" font-size="16" class="m">类型</text><text x="470" y="498" font-size="16" class="m">实体 / 事件</text><text x="800" y="498" font-size="16" class="m">状态</text><text x="950" y="498" font-size="16" class="m">来源</text><text x="1130" y="498" font-size="16" class="m">下一章用途</text><line x1="325" y1="510" x2="1490" y2="510" stroke="#E7E9F0"/>
-<text x="330" y="545" font-size="17" class="t">角色</text><text x="470" y="545" font-size="17" class="t">林序</text><rect x="800" y="521" width="102" height="34" rx="17" fill="#E9F8F2"/><text x="851" y="544" font-size="14" text-anchor="middle" fill="#23A36D" font-family="Noto Sans CJK SC, Microsoft YaHei, Arial, sans-serif">active</text><text x="950" y="545" font-size="16" class="m">第042章</text><text x="1130" y="545" font-size="16" class="t">需要延续伤势与警惕状态</text>
-<text x="330" y="603" font-size="17" class="t">关系</text><text x="470" y="603" font-size="17" class="t">林序 ↔ 谢青衣</text><rect x="800" y="579" width="102" height="34" rx="17" fill="#FFF4E5"/><text x="851" y="602" font-size="14" text-anchor="middle" fill="#F59E0B" font-family="Noto Sans CJK SC, Microsoft YaHei, Arial, sans-serif">tentative</text><text x="950" y="603" font-size="16" class="m">第041章</text><text x="1130" y="603" font-size="16" class="t">双方暂时合作，但尚未互信</text>
-<text x="330" y="661" font-size="17" class="t">伏笔</text><text x="470" y="661" font-size="17" class="t">雨城三声钟</text><rect x="800" y="637" width="102" height="34" rx="17" fill="#E9F8F2"/><text x="851" y="660" font-size="14" text-anchor="middle" fill="#23A36D" font-family="Noto Sans CJK SC, Microsoft YaHei, Arial, sans-serif">active</text><text x="950" y="661" font-size="16" class="m">第042章</text><text x="1130" y="661" font-size="16" class="t">下一章需给出第一次解释</text>
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-<text x="330" y="777" font-size="17" class="t">任务</text><text x="470" y="777" font-size="17" class="t">寻找失踪卷宗</text><rect x="800" y="753" width="102" height="34" rx="17" fill="#E9F8F2"/><text x="851" y="776" font-size="14" text-anchor="middle" fill="#23A36D" font-family="Noto Sans CJK SC, Microsoft YaHei, Arial, sans-serif">active</text><text x="950" y="777" font-size="16" class="m">第039章</text><text x="1130" y="777" font-size="16" class="t">推动下一章调查目标</text><text x="1545" y="882" font-size="14" text-anchor="end" class="m">概念占位图 · 后续请替换为真实截图</text></svg>
\ No newline at end of file
diff --git a/docs/images/03-timeline.png b/docs/images/03-timeline.png
new file mode 100644
index 0000000..bbf58b1
Binary files /dev/null and b/docs/images/03-timeline.png differ
diff --git a/docs/images/README.md b/docs/images/README.md
index f557787..a1d968d 100644
--- a/docs/images/README.md
+++ b/docs/images/README.md
@@ -1,11 +1,9 @@
-# Preview image replacement guide
+# Product preview screenshots
 
-The three files in this directory are temporary concept placeholders generated from the current product workflow:
+The root `README.md` and `README.en.md` use these full-resolution application screenshots:
 
-- `01-library-dashboard.svg`
-- `02-editor-review.svg`
-- `03-memory-dashboard.svg`
+- `01-writing-task.png`
+- `02-editor-review.png`
+- `03-timeline.png`
 
-When real screenshots are available, keep the same filenames or update the paths in the root `README.md`.
-
-Recommended real screenshot size: `1600 × 900` or another 16:9 resolution. Before uploading, remove API keys, private manuscript text, local paths, account information, and other sensitive data.
+Keep screenshots free of API keys, local paths, account information, and other secrets.