diff --git a/README.md b/README.md
index 9e2d9d6..68918ed 100644
--- a/README.md
+++ b/README.md
@@ -37,6 +37,12 @@ make-my-arg 的起点项目：每个生成的项目都把这棵树复制为起
 
 `tools/`、`viewer/`、`docs/`、`deploy/` 里没有站点页面：走图工具按 `CONFIG.skipDirs` 跳过它们，所以生成的站点图永远不会把页数撑大。
 
+## 资产（`assets/`）
+
+`docs/gdd.md` front matter 的资产清单是唯一来源。`node tools/make-assets.mjs` 按该清单重新生成全部
+非文本资产：SVG 源写在 `tools/asset-src/`，再由宿主 ffmpeg/librsvg 光栅化为清单声明的 png/jpg；
+通话录音由 espeak-ng + ffmpeg 电话频带链路合成。`tools/` 不进部署树，页面只引用 `assets/` 下的成品。
+
 ## 本地运行
 
 静态站点，没有构建：
diff --git a/assets/audio-busytone.mp3 b/assets/audio-busytone.mp3
new file mode 100644
index 0000000..965fc65
Binary files /dev/null and b/assets/audio-busytone.mp3 differ
diff --git a/assets/banner-aid.jpg b/assets/banner-aid.jpg
new file mode 100644
index 0000000..d2e9677
Binary files /dev/null and b/assets/banner-aid.jpg differ
diff --git a/assets/banner-office.jpg b/assets/banner-office.jpg
new file mode 100644
index 0000000..6944fa2
Binary files /dev/null and b/assets/banner-office.jpg differ
diff --git a/assets/logo-zhengheng.png b/assets/logo-zhengheng.png
new file mode 100644
index 0000000..b3b4051
Binary files /dev/null and b/assets/logo-zhengheng.png differ
diff --git a/assets/photo-cellar.jpg b/assets/photo-cellar.jpg
new file mode 100644
index 0000000..3651674
Binary files /dev/null and b/assets/photo-cellar.jpg differ
diff --git a/assets/photo-facade.jpg b/assets/photo-facade.jpg
new file mode 100644
index 0000000..942594b
Binary files /dev/null and b/assets/photo-facade.jpg differ
diff --git a/assets/photo-jiulianhuan.jpg b/assets/photo-jiulianhuan.jpg
new file mode 100644
index 0000000..10317f5
Binary files /dev/null and b/assets/photo-jiulianhuan.jpg differ
diff --git a/assets/photo-snowglobe.jpg b/assets/photo-snowglobe.jpg
new file mode 100644
index 0000000..9ba2d07
Binary files /dev/null and b/assets/photo-snowglobe.jpg differ
diff --git a/assets/scan-confetti.png b/assets/scan-confetti.png
new file mode 100644
index 0000000..bd0061f
Binary files /dev/null and b/assets/scan-confetti.png differ
diff --git a/assets/scan-medical-1990.png b/assets/scan-medical-1990.png
new file mode 100644
index 0000000..90b4053
Binary files /dev/null and b/assets/scan-medical-1990.png differ
diff --git a/assets/scan-note1.png b/assets/scan-note1.png
new file mode 100644
index 0000000..3322eba
Binary files /dev/null and b/assets/scan-note1.png differ
diff --git a/assets/scan-note2.png b/assets/scan-note2.png
new file mode 100644
index 0000000..7597b0d
Binary files /dev/null and b/assets/scan-note2.png differ
diff --git a/assets/scan-notebook.png b/assets/scan-notebook.png
new file mode 100644
index 0000000..428f5ff
Binary files /dev/null and b/assets/scan-notebook.png differ