diff --git a/proxy/rewriter.go b/proxy/rewriter.go
index 2891519..f8c2cd9 100644
--- a/proxy/rewriter.go
+++ b/proxy/rewriter.go
@@ -43,6 +43,20 @@ func (r *ContentRewriter) RewriteHTML(body []byte) ([]byte, error) {
 
 func (r *ContentRewriter) rewriteNode(n *html.Node) {
     if n.Type == html.ElementNode {
+        // 在 head 标签开始处插入 base 标签
+        if n.Data == "head" && n.FirstChild != nil {
+            baseNode := &html.Node{
+                Type: html.ElementNode,
+                Data: "base",
+                Attr: []html.Attribute{
+                    {Key: "href", Val: "/p/" + r.token + "/"},
+                },
+            }
+            baseNode.NextSibling = n.FirstChild
+            n.FirstChild.PrevSibling = baseNode
+            baseNode.Parent = n
+            n.FirstChild = baseNode
+        }
         attrs := map[string]bool{"href": true, "src": true, "action": true, "data": true}
         
         for i, attr := range n.Attr {