diff --git a/app/src/protyle/gutter/index.ts b/app/src/protyle/gutter/index.ts
index 3b77bdeca..23e3336b0 100644
--- a/app/src/protyle/gutter/index.ts
+++ b/app/src/protyle/gutter/index.ts
@@ -1698,7 +1698,7 @@ export class Gutter {
                         iconHTML: "",
                         checked: !nodeElement.getAttribute("custom-heading-mode"),
                         click() {
-                            nodeElement.setAttribute("custom-heading-mode", "0");
+                            nodeElement.removeAttribute("custom-heading-mode");
                             fetchPost("/api/attr/setBlockAttrs", {
                                 id,
                                 attrs: {"custom-heading-mode": ""}
diff --git a/kernel/model/render.go b/kernel/model/render.go
index 960afdc6f..26a4abdbc 100644
--- a/kernel/model/render.go
+++ b/kernel/model/render.go
@@ -303,8 +303,8 @@ func resolveEmbedR(n *ast.Node, blockEmbedMode int, luteEngine *lute.Lute, resol
 						h := treenode.GetNodeInTree(subTree, sqlBlock.ID)
 						var hChildren []*ast.Node
 
-						// 从嵌入块的 IAL 属性中解析 custom-heading-mode，默认值为 0
-						blockHeadingMode := 0 // 默认值
+						// 从嵌入块的 IAL 属性中解析 custom-heading-mode，使用全局配置作为默认值
+						blockHeadingMode := Conf.Editor.HeadingEmbedMode
 						if customHeadingMode := n.IALAttr("custom-heading-mode"); "" != customHeadingMode {
 							if mode, err := strconv.Atoi(customHeadingMode); nil == err && (mode == 0 || mode == 1 || mode == 2) {
 								blockHeadingMode = mode