diff --git a/common/js/lang.js b/common/js/lang.js
index e6c0500..49e174f 100644
--- a/common/js/lang.js
+++ b/common/js/lang.js
@@ -856,26 +856,31 @@ function normalizeRemoteTreeForPage(tree, langPath) {
 	const segments = String(langPath).split('/').filter(Boolean);
 	if (!segments.length) return tree;
 
-	// 沿 langPath 段向下找页面 leaf:同一段同时尝试 camelCase 与 snake_case(bundle 服务器侧
-	// 对同一段实际可能用任一种命名,例如 point/order_list 在 bundle 里是 `tree.point.order_list.X`,
-	// 而 login/login 这种 camel 路径又是 `tree.login.login.X`)。
+	// 沿 langPath 段向下找页面 leaf:同一段同时尝试 camelCase、snake_case 与原始段名
+	// (bundle 服务器侧对同一段实际可能用任一种命名,例如 point/order_list 在 bundle 里是
+	// `tree.point.order_list.X`,而 login/login 这种 camel 路径又是 `tree.login.login.X`;
+	// 路径含连字符(如 ai-chat/index)时,原始段名 `ai-chat` 是唯一能命中 bundle 的形式)。
 	let leaf = tree;
 	let hasLeaf = true;
 	for (const segment of segments) {
 		const camel = toCamelCaseName(segment);
 		const snake = toSnakeCaseName(segment);
-		// 优先 camelCase;没有就回退 snake_case;都没有就放弃
+		const raw = segment;
+		// 优先 camelCase;回退 snake_case;再回退原始段名;都没有就放弃
 		const key = (leaf && typeof leaf === 'object' && !Array.isArray(leaf) && leaf[camel] !== undefined)
 			? camel
 			: (leaf && typeof leaf === 'object' && !Array.isArray(leaf) && leaf[snake] !== undefined
 				? snake
-				: null);
+				: (leaf && typeof leaf === 'object' && !Array.isArray(leaf) && raw !== camel && raw !== snake && leaf[raw] !== undefined
+					? raw
+					: null));
 		if (key === null) { hasLeaf = false; break; }
 		leaf = leaf[key];
 	}
 
-	const lastSegment = toCamelCaseName(segments[segments.length - 1]);
-	const lastSegmentSnake = toSnakeCaseName(segments[segments.length - 1]);
+	const rawLast = segments[segments.length - 1];
+	const lastSegment = toCamelCaseName(rawLast);
+	const lastSegmentSnake = toSnakeCaseName(rawLast);
 	const currentPageLeaf =
 		hasLeaf && leaf && typeof leaf === 'object' && !Array.isArray(leaf)
 			? leaf
@@ -883,7 +888,9 @@ function normalizeRemoteTreeForPage(tree, langPath) {
 				? tree[lastSegment]
 				: (tree[lastSegmentSnake] && typeof tree[lastSegmentSnake] === 'object' && !Array.isArray(tree[lastSegmentSnake])
 					? tree[lastSegmentSnake]
-					: null));
+					: (rawLast !== lastSegment && rawLast !== lastSegmentSnake && tree[rawLast] && typeof tree[rawLast] === 'object' && !Array.isArray(tree[rawLast])
+						? tree[rawLast]
+						: null)));
 
 	if (!currentPageLeaf) return tree;