diff --git a/xinquan/app.py b/xinquan/app.py
index f4836ee..f05dfff 100644
--- a/xinquan/app.py
+++ b/xinquan/app.py
@@ -201,7 +201,10 @@ function api(path, opts){
   });
 }
 function esc(s){const d=document.createElement('div');d.textContent=s;return d.innerHTML;}
-function md(s){ try{return marked.parse(s||'');}catch(e){return esc(s);} }
+function md(s){
+  s=(s||'').replace(/\(media\//g,'('+BASE+'/media/');  // 相对 media 路径补全为绝对，避免无尾斜杠时解析到根路径
+  try{return marked.parse(s);}catch(e){return esc(s);}
+}
 
 const state={pages:[], mode:'list', current:null, content:''};
 const umarked = typeof marked==='undefined';