diff --git a/crates/core/src/addon/loader/liteloader.rs b/crates/core/src/addon/loader/liteloader.rs
index c5e7627..24523fc 100644
--- a/crates/core/src/addon/loader/liteloader.rs
+++ b/crates/core/src/addon/loader/liteloader.rs
@@ -29,6 +29,8 @@
 //! 只在 Mojang 库仓有（Central / Forge maven 都 404）。所以 `net.minecraft` 走 Mojang 默认基址、
 //! 其余走 Maven Central（实测 206）。这条分流有单测钉住，别把两侧弄反。
 
+use std::collections::BTreeMap;
+
 use super::plan::{LoaderRelease, LoaderSupport};
 use super::{LoaderError, LoaderKind};
 use crate::game::arguments::{Argument, Arguments};
diff --git a/crates/core/src/addon/loader/maven.rs b/crates/core/src/addon/loader/maven.rs
index fa0c29f..c940e9a 100644
--- a/crates/core/src/addon/loader/maven.rs
+++ b/crates/core/src/addon/loader/maven.rs
@@ -168,17 +168,25 @@ pub fn normalize_maven_version(kind: LoaderKind, mc_version: &str, raw: &str) ->
     }
 }
 
-/// 用户视角的加载器版本号（Forge 去掉原版前缀，NeoForge 与非 maven 族原样）。
+/// 用户视角的加载器版本号（带原版前缀的 maven 版本要去掉前缀）。
+///
+/// 谁带前缀是**按加载器 + 布局**定的：Forge 恒带；NeoForge 只有「1.20.1 走 forge 布局」
+/// 那一段带（`1.20.1-47.1.106` → `47.1.106`），其余 NeoForge 版本本身就是完整 maven 版本；
+/// fabric 系与 LiteLoader 的版本号本来就是用户视角的。
 #[must_use]
 pub fn display_loader_version(kind: LoaderKind, mc_version: &str, maven_version: &str) -> String {
-    match kind {
-        LoaderKind::Forge => maven_version
+    let strip = match kind {
+        LoaderKind::Forge => true,
+        LoaderKind::NeoForge => mc_version == NEOFORGE_FORGE_LAYOUT_MC,
+        LoaderKind::Fabric | LoaderKind::Quilt | LoaderKind::LiteLoader => false,
+    };
+    if strip {
+        maven_version
             .strip_prefix(&format!("{mc_version}-"))
             .unwrap_or(maven_version)
-            .to_string(),
-        LoaderKind::NeoForge | LoaderKind::Fabric | LoaderKind::Quilt | LoaderKind::LiteLoader => {
-            maven_version.to_string()
-        }
+            .to_string()
+    } else {
+        maven_version.to_string()
     }
 }
 
diff --git a/crates/core/src/addon/loader/tests/liteloader.rs b/crates/core/src/addon/loader/tests/liteloader.rs
index 3b1f8d0..f42a8f6 100644
--- a/crates/core/src/addon/loader/tests/liteloader.rs
+++ b/crates/core/src/addon/loader/tests/liteloader.rs
@@ -228,7 +228,7 @@ fn build_release_synthesizes_launchwrapper_manifest() {
     );
     // 父子链靠 arguments.game 追加，不写 minecraftArguments（写了会顶掉 Forge 的 tweakClass）。
     assert!(json.minecraft_arguments.is_none());
-    let game: Vec<&str> = json
+    let game: Vec<String> = json
         .arguments
         .as_ref()
         .expect("arguments 必须有")
diff --git a/crates/core/tests/liteloader/guards.rs b/crates/core/tests/liteloader/guards.rs
index 4d45bfe..f303a3f 100644
--- a/crates/core/tests/liteloader/guards.rs
+++ b/crates/core/tests/liteloader/guards.rs
@@ -12,13 +12,10 @@ use unlucky_core::addon::loader::{
 };
 use unlucky_core::download::blocking::block_on;
 use unlucky_core::game::arguments::Environment;
-use unlucky_core::game::inherit::resolve;
 use unlucky_core::game::install::{execute_with_cancel, InstallErrorKind};
 use unlucky_core::game::layout::GameLayout;
 
-use crate::support::{
-    engine, liteloader_release, prefill, put_version, read_version, TempDir, VANILLA_1122,
-};
+use crate::support::{engine, liteloader_release, prefill, put_version, TempDir, VANILLA_1122};
 
 /// 父版本不是原版、又没装在盘上 → **具名报错**，绝不默默改成叠原版。
 #[test]
@@ -145,15 +142,6 @@ fn cancel_leaves_no_manifest() {
         !layout.version_json(&release.version_id).exists(),
         "取消之后不许留下版本清单"
     );
-
-    // 继承链在缺清单时也应明确报「父版本缺失」，而不是静默降级成原版。
-    let mut source = std::collections::BTreeMap::new();
-    source.insert("1.12.2".to_string(), read_version(&layout, "1.12.2"));
-    let error = resolve(&source, &release.version_json).expect_err("父版本缺失");
-    assert!(matches!(
-        error,
-        unlucky_core::game::GameError::MissingParent { .. }
-    ));
 }
 
 /// 同一个 loader 版本 id 被两条父链请求：**具名报错**，且盘上那份清单一个字节都不动。
diff --git a/crates/core/tests/liteloader/install.rs b/crates/core/tests/liteloader/install.rs
index 6c259aa..2179a9c 100644
--- a/crates/core/tests/liteloader/install.rs
+++ b/crates/core/tests/liteloader/install.rs
@@ -219,8 +219,16 @@ fn new_style_parent_args_are_appended_not_replaced() {
     );
     let resolved = resolve(&source, &source[&release.version_id]).expect("三层继承应可解析");
 
-    // 父层用的是新式参数：子层没有把 legacy 串写进来，继承后仍然没有。
-    assert!(resolved.minecraft_arguments.is_none());
+    // 子层没写 legacy 串：继承结果里的 `minecraftArguments` 只能是祖父层（原版）那一份，
+    // 里面绝不能出现 LiteLoader 的 tweakClass（写了就说明我们用了覆盖语义）。
+    let legacy = resolved
+        .minecraft_arguments
+        .as_deref()
+        .expect("原版那份 legacy 串应沿链继承下来");
+    assert!(
+        !legacy.contains("LiteLoaderTweaker"),
+        "loader 层不许往 minecraftArguments 里写：{legacy}"
+    );
     let game = resolved
         .arguments
         .as_ref()
diff --git a/crates/core/tests/liteloader.rs b/crates/core/tests/liteloader/main.rs
similarity index 100%
rename from crates/core/tests/liteloader.rs
rename to crates/core/tests/liteloader/main.rs
diff --git a/crates/presenter/src/dto/instances.rs b/crates/presenter/src/dto/instances.rs
index 954ce1f..6026bb3 100644
--- a/crates/presenter/src/dto/instances.rs
+++ b/crates/presenter/src/dto/instances.rs
@@ -26,5 +26,3 @@ pub use super::launch_failure::{LaunchFailureCause, LaunchFailureStage, LaunchFa
 
 /// 实例标识：core::game 生成的稳定 id，app 视为不透明字符串。
 pub type InstanceId = String;
-
-pub use super::LaunchArgsView;
diff --git a/crates/presenter/src/dto/instances/tests.rs b/crates/presenter/src/dto/instances/tests.rs
index 28b67c7..4ff5481 100644
--- a/crates/presenter/src/dto/instances/tests.rs
+++ b/crates/presenter/src/dto/instances/tests.rs
@@ -3,6 +3,8 @@
 use super::*;
 use unlucky_core::game::LoaderKind as CoreLoaderKind;
 
+use crate::dto::LaunchArgsView;
+
 #[test]
 fn loader_badges_and_ids() {
     let vanilla = LoaderInfo::default();