diff --git a/CMakeLists.txt b/CMakeLists.txt
index c9e35b2..df42c1c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,12 +27,8 @@ if (EMSCRIPTEN)
         -Wuninitialized
         -fexceptions
         -flto
-        -pthread
     )
     target_link_options(sekai_deck_recommend_wasm PRIVATE
-        -pthread
-        "-sPTHREAD_POOL_SIZE=4"
-
         --bind
         -fexceptions
         -flto
diff --git a/src/deck-recommend/base-deck-recommend.cpp b/src/deck-recommend/base-deck-recommend.cpp
index 23bdf4b..42d4ff2 100644
--- a/src/deck-recommend/base-deck-recommend.cpp
+++ b/src/deck-recommend/base-deck-recommend.cpp
@@ -182,9 +182,13 @@ void BaseDeckRecommend::runRecommendAlgorithm(
             config.target == RecommendTarget::Score
             && Enums::LiveType::isMulti(liveType)
             && config.member == 5;
-        const int dfsThreads = orderIndependentScore
-            ? std::max(1, config.dfsParallelThreads)
-            : 1;
+#if defined(__EMSCRIPTEN__) && !defined(__EMSCRIPTEN_PTHREADS__)
+        // 单线程 WASM 构建没有线程支持，分区并行退化为串行
+        const int configuredDfsThreads = 1;
+#else
+        const int configuredDfsThreads = std::max(1, config.dfsParallelThreads);
+#endif
+        const int dfsThreads = orderIndependentScore ? configuredDfsThreads : 1;
         if (dfsThreads <= 1) {
             findBestCardsDFS(
                 liveType, config, dfsCards, supportCards, scoreFunc,