diff --git a/deploy/web/default.conf b/deploy/web/default.conf
index 6da25f6..e49832f 100644
--- a/deploy/web/default.conf
+++ b/deploy/web/default.conf
@@ -17,7 +17,18 @@ server {
     add_header Cache-Control "public, immutable";
   }
 
+  # web/public 挂载到 /var/www/yh-public：与 dist 根目录同 URL（如 /logo.png），优先读挂载，无则回退 dist
+  location ~ ^/([^/]+\.(?:png|jpe?g|gif|ico|svg|webp|webmanifest))$ {
+    root /var/www/yh-public;
+    try_files /$1 @dist_root_public;
+  }
+  location @dist_root_public {
+    root /usr/share/nginx/html;
+    try_files $uri =404;
+  }
+
   # 推广素材：文件必须真实存在，禁止落到 SPA index.html（否则前端误判「静态存在」、视频拿到 HTML）
+  # 宿主机 ./web/promotion 挂载覆盖本路径，改 social 下文件无需重新 npm build
   location ^~ /promotion/ {
     try_files $uri =404;
     add_header Cache-Control "public, max-age=86400";
diff --git a/docker-compose.yml b/docker-compose.yml
index 91680d9..60984fd 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -28,12 +28,14 @@ services:
     networks:
       - yh_net
 
-  # 静态文件由脚本构建到 deploy/web/dist，挂载后替换文件即可生效
+  # 静态文件由脚本构建到 deploy/web/dist；另挂载源码目录便于热更新（改宿主机文件即生效，无需重建 dist）
   web:
     image: ${REGISTRY_MIRROR:-docker.m.daocloud.io/library/}nginx:alpine
     container_name: yh_web
     volumes:
       - ./deploy/web/dist:/usr/share/nginx/html:ro
+      - ./web/promotion:/usr/share/nginx/html/promotion:ro
+      - ./web/public:/var/www/yh-public:ro
       - ./deploy/web/default.conf:/etc/nginx/conf.d/default.conf:ro
       - ./verify-root:/verify-root:ro
     networks:
diff --git a/nginx/web.conf b/nginx/web.conf
index f5ffd8c..e7d8eff 100644
--- a/nginx/web.conf
+++ b/nginx/web.conf
@@ -15,6 +15,16 @@ server {
         add_header Cache-Control "public, immutable";
     }
 
+    # web/public 挂载 /var/www/yh-public；单段文件名同 dist 根 URL，优先挂载后回退 dist
+    location ~ ^/([^/]+\.(?:png|jpe?g|gif|ico|svg|webp|webmanifest))$ {
+        root /var/www/yh-public;
+        try_files /$1 @dist_root_public;
+    }
+    location @dist_root_public {
+        root /usr/share/nginx/html;
+        try_files $uri =404;
+    }
+
     location ^~ /promotion/ {
         try_files $uri =404;
         add_header Cache-Control "public, max-age=86400";
diff --git a/web/public/README.md b/web/public/README.md
index 2064d77..0127637 100644
--- a/web/public/README.md
+++ b/web/public/README.md
@@ -8,6 +8,8 @@
 |------|------|
 | `logo.png` | **标签页图标**（`index.html` 的 `rel="icon"` / `apple-touch-icon`）+ **首页与宣传册导航**（`Home.vue`、`BrochurePage.vue`） |
 
-更新品牌时替换本目录下的 `logo.png` 后重新构建即可（可与 `promotion/logo.png` 保持同图或分别维护）。
+更新品牌时替换本目录下的 `logo.png` 即可。
 
-**注意**：`public` 里的路径不要用 `src/assets` 那种写法；引用时始终用**根路径**，例如 `/logo.png`。
+**Docker 部署**：`docker-compose` 已将 **`web/public` → 容器内 `/var/www/yh-public`** 只读挂载，`deploy/web/default.conf` 中配置了「根路径下单段静态文件名优先读挂载、否则回退 `dist`」。**改宿主机 `web/public/` 内文件后无需 `npm run build`**，刷新即可（注意浏览器缓存）。
+
+**注意**：引用时用**根路径** `/logo.png`，不要用 `src/assets` 的 import 方式写 public 资源。