diff --git a/examples/TH-141/manifest.toml b/examples/TH-141/manifest.toml
index 78199ee..2266562 100644
--- a/examples/TH-141/manifest.toml
+++ b/examples/TH-141/manifest.toml
@@ -162,5 +162,16 @@ path = "segments/各模型对水的预测对照"
 kind = "segment"
 path = "segments/算不准背后的真实物理"
 
+# Export targets (ADR-0009): each is a build producing a typed artifact, with
+# file-resident presentation config that overrides the framework defaults.
+# Heading numbering is given explicitly per level (level-1 一、, level-2 1.1,
+# level-3 1.1.1) — overriding the render package's default via the in-file path.
 [targets.student]
+artifact = "single-file"
+[targets.student.numbering]
+heading = ["{1:一}、", "{1:1}.{2:1}", "{1:1}.{2:1}.{3:1}"]
+
 [targets.teacher]
+artifact = "single-file"
+[targets.teacher.numbering]
+heading = ["{1:一}、", "{1:1}.{2:1}", "{1:1}.{2:1}.{3:1}"]