diff --git a/.gitignore b/.gitignore
index 3f6e577..b34ffd6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -64,3 +64,12 @@ configs/config.json
 
 # 日志
 *.log
+
+# 构建目录（所有平台）
+build-win/
+build_linux/
+build_win/
+dist/
+
+# Windows 第三方依赖（ONNX Runtime Win x64 预编译二进制）
+third_party/onnxruntime-win-x64/
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6745c89..857c8e3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,6 +55,7 @@ set(SOURCES
     # Core (平台无关)
     src/core/stt_engine.cpp
     src/core/sense_voice_engine.cpp
+    src/core/ort_minimal.cpp
     src/core/sense_voice_features.cpp
     src/core/sense_voice_tokenizer.cpp
     src/core/mel_spectrogram.cpp
@@ -166,6 +167,36 @@ target_compile_options(${PROJECT_NAME} PRIVATE
     $<$<CXX_COMPILER_ID:MSVC>:/W4>
 )
 
+# ============================================================================
+# Windows DLL 复制（交叉编译时自动拷贝到输出目录）
+# ============================================================================
+if(WIN32)
+    if(ONNXRUNTIME_DLL)
+        add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
+            COMMAND ${CMAKE_COMMAND} -E copy_if_different
+                "${ONNXRUNTIME_DLL}"
+                $<TARGET_FILE_DIR:${PROJECT_NAME}>
+            COMMENT "拷贝 onnxruntime.dll 到输出目录"
+        )
+    endif()
+    if(ONNXRUNTIME_PROVIDERS_DLL)
+        add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
+            COMMAND ${CMAKE_COMMAND} -E copy_if_different
+                "${ONNXRUNTIME_PROVIDERS_DLL}"
+                $<TARGET_FILE_DIR:${PROJECT_NAME}>
+            COMMENT "拷贝 onnxruntime_providers_shared.dll 到输出目录"
+        )
+    endif()
+    if(PORTAUDIO_DLL)
+        add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
+            COMMAND ${CMAKE_COMMAND} -E copy_if_different
+                "${PORTAUDIO_DLL}"
+                $<TARGET_FILE_DIR:${PROJECT_NAME}>
+            COMMENT "拷贝 libportaudio.dll 到输出目录"
+        )
+    endif()
+endif()
+
 # ============================================================================
 # 资源文件
 # ============================================================================
diff --git a/cmake/dependencies.cmake b/cmake/dependencies.cmake
index 0d6d18c..a797c57 100644
--- a/cmake/dependencies.cmake
+++ b/cmake/dependencies.cmake
@@ -2,21 +2,39 @@ include(FetchContent)
 
 set(THIRD_PARTY_DIR "${CMAKE_CURRENT_SOURCE_DIR}/third_party")
 
-# ----------------------------------------------------------------------------
+# ============================================================================
 # ONNX Runtime
-# ----------------------------------------------------------------------------
-set(ONNXRUNTIME_ROOT "${THIRD_PARTY_DIR}/onnxruntime")
-
-find_library(ONNXRUNTIME_LIB
-    NAMES onnxruntime
-    PATHS "${ONNXRUNTIME_ROOT}/lib"
-    NO_DEFAULT_PATH
-)
-find_path(ONNXRUNTIME_INCLUDE_DIR
-    NAMES onnxruntime_cxx_api.h
-    PATHS "${ONNXRUNTIME_ROOT}/include"
-    NO_DEFAULT_PATH
-)
+# ============================================================================
+if(WIN32)
+    # Windows 版本：onnxruntime.dll
+    set(ONNXRUNTIME_ROOT "${THIRD_PARTY_DIR}/onnxruntime-win-x64")
+    if(NOT EXISTS "${ONNXRUNTIME_ROOT}/lib/onnxruntime.dll")
+        # 回退到旧目录名
+        set(ONNXRUNTIME_ROOT "${THIRD_PARTY_DIR}/onnxruntime")
+    endif()
+    # 直接用 DLL 路径（MinGW 可直接链接 DLL）
+    if(EXISTS "${ONNXRUNTIME_ROOT}/lib/onnxruntime.dll")
+        set(ONNXRUNTIME_LIB "${ONNXRUNTIME_ROOT}/lib/onnxruntime.dll")
+        set(ONNXRUNTIME_DLL "${ONNXRUNTIME_ROOT}/lib/onnxruntime.dll")
+        set(ONNXRUNTIME_INCLUDE_DIR "${ONNXRUNTIME_ROOT}/include")
+    endif()
+    if(NOT ONNXRUNTIME_INCLUDE_DIR)
+        set(ONNXRUNTIME_INCLUDE_DIR "${ONNXRUNTIME_ROOT}/include")
+    endif()
+else()
+    # Linux 版本：libonnxruntime.so
+    set(ONNXRUNTIME_ROOT "${THIRD_PARTY_DIR}/onnxruntime")
+    find_library(ONNXRUNTIME_LIB
+        NAMES onnxruntime
+        PATHS "${ONNXRUNTIME_ROOT}/lib"
+        NO_DEFAULT_PATH
+    )
+    find_path(ONNXRUNTIME_INCLUDE_DIR
+        NAMES onnxruntime_cxx_api.h
+        PATHS "${ONNXRUNTIME_ROOT}/include"
+        NO_DEFAULT_PATH
+    )
+endif()
 
 if(ONNXRUNTIME_LIB AND ONNXRUNTIME_INCLUDE_DIR)
     set(ONNXRUNTIME_LIBRARIES ${ONNXRUNTIME_LIB})
@@ -27,21 +45,45 @@ else()
     message(WARNING "未找到 ONNX Runtime，推理功能将使用占位实现")
 endif()
 
-# ----------------------------------------------------------------------------
+# ============================================================================
 # PortAudio
-# ----------------------------------------------------------------------------
+# ============================================================================
 set(PORTAUDIO_ROOT "${THIRD_PARTY_DIR}/portaudio")
 
-find_library(PORTAUDIO_LIB
-    NAMES portaudio libportaudio
-    PATHS "${PORTAUDIO_ROOT}/lib"
-    NO_DEFAULT_PATH
-)
-find_path(PORTAUDIO_INCLUDE_DIR
-    NAMES portaudio.h
-    PATHS "${PORTAUDIO_ROOT}/include"
-    NO_DEFAULT_PATH
-)
+if(WIN32)
+    # Windows 版本：libportaudio.dll 在 bin/ 目录
+    if(EXISTS "${PORTAUDIO_ROOT}/bin/libportaudio.dll")
+        set(PORTAUDIO_LIB "${PORTAUDIO_ROOT}/bin/libportaudio.dll")
+        set(PORTAUDIO_DLL "${PORTAUDIO_ROOT}/bin/libportaudio.dll")
+    endif()
+    if(EXISTS "${PORTAUDIO_ROOT}/include/portaudio.h")
+        set(PORTAUDIO_INCLUDE_DIR "${PORTAUDIO_ROOT}/include")
+    endif()
+else()
+    # Linux 版本：优先使用构建好的本地库
+    find_library(PORTAUDIO_LIB
+        NAMES portaudio libportaudio
+        PATHS "${PORTAUDIO_ROOT}/lib" /usr/lib64 /usr/lib /usr/local/lib
+        NO_DEFAULT_PATH
+    )
+    find_path(PORTAUDIO_INCLUDE_DIR
+        NAMES portaudio.h
+        PATHS "${PORTAUDIO_ROOT}/include" /usr/include /usr/include/portaudio /usr/local/include
+        NO_DEFAULT_PATH
+    )
+
+    # 回退：通过 pkg-config 查找
+    if(NOT PORTAUDIO_LIB OR NOT PORTAUDIO_INCLUDE_DIR)
+        find_package(PkgConfig QUIET)
+        if(PKG_CONFIG_FOUND)
+            pkg_check_modules(PORTAUDIO_PC portaudio-2.0 QUIET)
+            if(PORTAUDIO_PC_FOUND)
+                set(PORTAUDIO_LIBRARIES ${PORTAUDIO_PC_LIBRARIES})
+                set(PORTAUDIO_INCLUDE_DIRS ${PORTAUDIO_PC_INCLUDE_DIRS})
+            endif()
+        endif()
+    endif()
+endif()
 
 if(PORTAUDIO_LIB AND PORTAUDIO_INCLUDE_DIR)
     set(PORTAUDIO_LIBRARIES ${PORTAUDIO_LIB})
@@ -52,9 +94,9 @@ else()
     message(WARNING "未找到 PortAudio，音频采集功能将使用占位实现")
 endif()
 
-# ----------------------------------------------------------------------------
+# ============================================================================
 # dr_libs (header-only)
-# ----------------------------------------------------------------------------
+# ============================================================================
 set(DR_LIBS_INCLUDE_DIR "${THIRD_PARTY_DIR}/dr_libs")
 if(EXISTS "${DR_LIBS_INCLUDE_DIR}/dr_wav.h")
     message(STATUS "找到 dr_libs: ${DR_LIBS_INCLUDE_DIR}")
@@ -63,7 +105,7 @@ else()
     message(WARNING "未找到 dr_libs 头文件")
 endif()
 
-# ----------------------------------------------------------------------------
+# ============================================================================
 # nlohmann/json (header-only)
-# ----------------------------------------------------------------------------
+# ============================================================================
 set(NLOHMANN_JSON_INCLUDE_DIR "${THIRD_PARTY_DIR}/nlohmann_json")
diff --git a/cmake/mingw-toolchain.cmake b/cmake/mingw-toolchain.cmake
new file mode 100644
index 0000000..a31f0c1
--- /dev/null
+++ b/cmake/mingw-toolchain.cmake
@@ -0,0 +1,15 @@
+# MinGW Windows 交叉编译工具链
+set(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_PROCESSOR x86_64)
+
+set(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc)
+set(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
+set(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
+
+set(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32/sys-root/mingw)
+
+# 搜索策略：允许在 sysroot 和宿主路径之外查找
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY BOTH)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE BOTH)
+set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE BOTH)
diff --git a/run.sh b/run.sh
index 00c822b..33926ea 100755
--- a/run.sh
+++ b/run.sh
@@ -1,11 +1,31 @@
 #!/bin/bash
 # Impress Voice Input 启动脚本
+# 设置 ONNX Runtime / PortAudio 库路径并启动应用
+
+set -e
 
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 BUILD_DIR="${SCRIPT_DIR}/build"
+ONNXRUNTIME_LIB_DIR="${SCRIPT_DIR}/third_party/onnxruntime/lib"
+PORTAUDIO_LIB_DIR="${SCRIPT_DIR}/third_party/portaudio/lib"
 
-# 设置库路径
-export LD_LIBRARY_PATH="${SCRIPT_DIR}/third_party/onnxruntime/lib:${SCRIPT_DIR}/third_party/portaudio/lib:${LD_LIBRARY_PATH}"
+# 检查可执行文件
+if [ ! -f "${BUILD_DIR}/impress_voice_input" ]; then
+    echo "错误：未找到可执行文件，请先编译："
+    echo "  mkdir -p build && cd build"
+    echo "  cmake .. -DCMAKE_BUILD_TYPE=RelWithDebInfo"
+    echo "  cmake --build . -j\$(nproc)"
+    exit 1
+fi
 
-# 运行
+# 检查 ONNX Runtime
+if [ ! -f "${ONNXRUNTIME_LIB_DIR}/libonnxruntime.so" ]; then
+    echo "警告：ONNX Runtime 未部署，推理功能将不可用"
+    echo "  请按照 third_party/README.md 部署 ONNX Runtime"
+fi
+
+# 设置库路径（ONNX Runtime 优先，PortAudio 回退到系统）
+export LD_LIBRARY_PATH="${ONNXRUNTIME_LIB_DIR}:${PORTAUDIO_LIB_DIR}:${LD_LIBRARY_PATH}"
+
+# 启动应用
 exec "${BUILD_DIR}/impress_voice_input" "$@"
diff --git a/src/audio/audio_capture.cpp b/src/audio/audio_capture.cpp
index 5119d88..1ab9107 100644
--- a/src/audio/audio_capture.cpp
+++ b/src/audio/audio_capture.cpp
@@ -13,6 +13,7 @@ namespace impress {
 // 预分配缓冲区，避免在实时回调中分配内存
 static constexpr int kMaxBufferSize = 8192;
 
+#ifdef HAVE_PORTAUDIO
 // 全局 PortAudio 初始化状态
 static bool gPaInitialized = false;
 
@@ -33,6 +34,7 @@ static void safePaTerminate() {
         gPaInitialized = false;
     }
 }
+#endif
 
 // 回调上下文：独立于 Impl 的 POD 结构，供静态回调使用
 struct CallbackContext {
@@ -52,13 +54,13 @@ struct AudioCapture::Impl {
     CallbackContext ctx;
 };
 
+#ifdef HAVE_PORTAUDIO
 static int paCallback(const void* input, void* /*output*/,
                       unsigned long frameCount,
                       const PaStreamCallbackTimeInfo* /*timeInfo*/,
                       PaStreamCallbackFlags /*statusFlags*/,
                       void* userData)
 {
-#ifdef HAVE_PORTAUDIO
     auto* ctx = static_cast<CallbackContext*>(userData);
 
     const float* samples = static_cast<const float*>(input);
@@ -88,11 +90,15 @@ static int paCallback(const void* input, void* /*output*/,
     emit ctx->owner->audioDataReady(data, ctx->sampleRate);
 
     return paContinue;
-#else
-    (void)input; (void)frameCount; (void)userData;
-    return 0;
-#endif
 }
+#else
+// 占位回调（无 PortAudio 时不使用）
+static int paCallbackStub(const void*, void*, unsigned long,
+                          const int*, int, void*)
+{
+    return 0;
+}
+#endif
 
 AudioCapture::AudioCapture(QObject* parent)
     : QObject(parent)
@@ -107,8 +113,8 @@ AudioCapture::~AudioCapture() {
 
 QStringList AudioCapture::getDeviceList() {
     QStringList devices;
-    devices << "默认设备";
 #ifdef HAVE_PORTAUDIO
+    devices << "默认设备";
     if (!ensurePaInitialized()) {
         LOG_ERROR(kTag, "PortAudio 初始化失败");
         return devices;
@@ -124,6 +130,9 @@ QStringList AudioCapture::getDeviceList() {
                 .arg(info->defaultSampleRate).arg(hostApiName);
         }
     }
+#else
+    devices << "PortAudio 未启用（占位设备）";
+    LOG_WARNING(kTag, "PortAudio 未编译启用，设备列表为占位");
 #endif
     return devices;
 }
@@ -195,7 +204,9 @@ bool AudioCapture::start(int deviceIndex, int sampleRate, int bufferSizeMs) {
     PaStreamParameters inputParams{};
     inputParams.device = devIdx;
     inputParams.channelCount = 1;
-    inputParams.sampleFormat = paFloat32 | paNonInterleaved;
+    inputParams.sampleFormat = paFloat32;
+    // 不使用 paNonInterleaved：input 指针直接是 float* 数组（interleaved mono），
+    // 回调中可以安全地 static_cast<const float*>(input)
     // 使用高延迟以避免回调过快
     inputParams.suggestedLatency = devInfo->defaultHighInputLatency;
 
@@ -232,8 +243,9 @@ bool AudioCapture::start(int deviceIndex, int sampleRate, int bufferSizeMs) {
         .arg(deviceIndex).arg(sampleRate).arg(bufferSizeMs));
     return true;
 #else
-    LOG_ERROR(kTag, "PortAudio 未编译启用");
-    emit error("PortAudio 未编译启用");
+    (void)deviceIndex; (void)sampleRate; (void)bufferSizeMs;
+    LOG_ERROR(kTag, "PortAudio 未编译启用，无法启动采集");
+    emit error("PortAudio 未编译启用，请在 third_party/portaudio/ 中部署后重新编译");
     return false;
 #endif
 }
diff --git a/src/core/ort_api_shim.h b/src/core/ort_api_shim.h
new file mode 100644
index 0000000..b966aa1
--- /dev/null
+++ b/src/core/ort_api_shim.h
@@ -0,0 +1,62 @@
+#pragma once
+/**
+ * @brief ONNX Runtime C API Shim
+ *
+ * 包装 onnxruntime_c_api.h 以解决 MinGW 交叉编译兼容性问题：
+ * 1. SAL 注解（specstrings.h 中的宏与 MinGW 不兼容）
+ * 2. _stdcall 调用约定导致函数声明语法错误
+ *
+ * 关键：必须在包含 onnxruntime_c_api.h 之前定义这些宏，
+ * 因为 header 内部的 #define 会使用它们。
+ */
+
+#ifdef HAVE_ONNXRUNTIME
+#ifndef ORT_API_SHIM_H
+#define ORT_API_SHIM_H
+
+#ifdef _WIN32
+#define ORT_DLL_IMPORT
+
+/* 在 specstrings.h 被包含之前，抢先定义 SAL 注解为空。
+   onnxruntime_c_api.h 第 74 行 #include <specstrings.h>，
+   如果 specstrings.h 用 #ifndef 保护，我们的定义就不会被覆盖。
+   即使被覆盖，_stdcall 下面的定义也会生效。 */
+#define _Success_(x)
+#define _Check_return_
+#define _Ret_maybenull_
+#define _In_
+#define _In_z_
+#define _In_opt_
+#define _In_opt_z_
+#define _Out_
+#define _Outptr_
+#define _Out_opt_
+#define _Inout_
+#define _Inout_opt_
+#define _Frees_ptr_opt_
+#define _Ret_notnull_
+#define _In_reads_(x)
+#define _Inout_updates_(x)
+#define _Out_writes_(x)
+#define _Inout_updates_all_(x)
+#define _Out_writes_bytes_all_(x)
+#define _Out_writes_all_(x)
+#define _Outptr_result_maybenull_(x)
+#define _In_reads_opt_(x)
+#define _Outptr_result_buffer_maybenull_(x)
+#define _Return_type_success_(x)
+#define _Out_writes_bytes_all_opt_(x)
+#define _In_reads_bytes_(x)
+
+/* 将 _stdcall 定义为空。
+   onnxruntime_c_api.h 第 86 行 #define ORT_API_CALL _stdcall，
+   所以当 ORT_API_CALL 展开为 _stdcall 后，_stdcall 再展开为空。
+   这样最终的函数声明没有调用约定修饰，MinGW 可以正常解析。 */
+#define _stdcall
+#define __stdcall
+#endif /* _WIN32 */
+
+#include <onnxruntime_c_api.h>
+
+#endif /* ORT_API_SHIM_H */
+#endif /* HAVE_ONNXRUNTIME */
diff --git a/src/core/ort_minimal.cpp b/src/core/ort_minimal.cpp
new file mode 100644
index 0000000..2d5f2ad
--- /dev/null
+++ b/src/core/ort_minimal.cpp
@@ -0,0 +1,365 @@
+/**
+ * @brief ONNX Runtime 轻量级 C API 包装器 - 实现
+ *
+ * 直接使用 C API，避免 onnxruntime_cxx_api.h 的 MinGW 兼容性问题。
+ */
+
+#ifdef HAVE_ONNXRUNTIME
+
+#include "ort_minimal.h"
+#include <cstring>
+#include <sstream>
+#include <vector>
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+namespace ort {
+
+/**
+ * 获取 OrtApi 指针
+ *
+ * 调用路径: OrtGetApiBase() -> OrtApiBase -> GetApi(version) -> OrtApi
+ */
+const OrtApi* getApi() {
+    static const OrtApi* api = nullptr;
+    if (!api) {
+        const OrtApiBase* apiBase = OrtGetApiBase();
+        api = apiBase->GetApi(ORT_API_VERSION);
+    }
+    return api;
+}
+
+// ============================================================================
+// Env
+// ============================================================================
+Env::Env(OrtLoggingLevel logLevel, const char* logId) {
+    const OrtApi* api = getApi();
+    OrtStatus* status = api->CreateEnv(logLevel, logId, &env_);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "CreateEnv failed");
+    }
+}
+
+Env::~Env() {
+    if (env_) {
+        const OrtApi* api = getApi();
+        api->ReleaseEnv(env_);
+    }
+}
+
+// ============================================================================
+// SessionOptions
+// ============================================================================
+SessionOptions::SessionOptions() {
+    const OrtApi* api = getApi();
+    OrtStatus* status = api->CreateSessionOptions(&opts_);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "CreateSessionOptions failed");
+    }
+}
+
+SessionOptions::~SessionOptions() {
+    if (opts_) {
+        const OrtApi* api = getApi();
+        api->ReleaseSessionOptions(opts_);
+    }
+}
+
+void SessionOptions::setIntraOpNumThreads(int n) {
+    const OrtApi* api = getApi();
+    OrtStatus* status = api->SetIntraOpNumThreads(opts_, n);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "SetIntraOpNumThreads failed");
+    }
+}
+
+void SessionOptions::setGraphOptimizationLevel(GraphOptimizationLevel level) {
+    const OrtApi* api = getApi();
+    OrtStatus* status = api->SetSessionGraphOptimizationLevel(opts_, level);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "SetSessionGraphOptimizationLevel failed");
+    }
+}
+
+// ============================================================================
+// Session
+// ============================================================================
+Session::Session(const Env& env, const char* modelPath, const SessionOptions& opts) {
+    const OrtApi* api = getApi();
+#ifdef _WIN32
+    // Windows: ORTCHAR_T = wchar_t, 需要将 UTF-8 转换为 UTF-16
+    int len = MultiByteToWideChar(CP_UTF8, 0, modelPath, -1, nullptr, 0);
+    std::vector<wchar_t> widePath(len);
+    MultiByteToWideChar(CP_UTF8, 0, modelPath, -1, widePath.data(), len);
+    OrtStatus* status = api->CreateSession(env.ptr(), widePath.data(), opts.ptr(), &session_);
+#else
+    OrtStatus* status = api->CreateSession(env.ptr(), modelPath, opts.ptr(), &session_);
+#endif
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "CreateSession failed");
+    }
+}
+
+#ifdef _WIN32
+Session::Session(const Env& env, const wchar_t* modelPath, const SessionOptions& opts) {
+    const OrtApi* api = getApi();
+    OrtStatus* status = api->CreateSession(env.ptr(), modelPath, opts.ptr(), &session_);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "CreateSession failed");
+    }
+}
+#endif
+
+Session::~Session() {
+    if (session_) {
+        const OrtApi* api = getApi();
+        api->ReleaseSession(session_);
+    }
+}
+
+size_t Session::getInputCount() const {
+    const OrtApi* api = getApi();
+    size_t count = 0;
+    OrtStatus* status = api->SessionGetInputCount(session_, &count);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "SessionGetInputCount failed");
+    }
+    return count;
+}
+
+size_t Session::getOutputCount() const {
+    const OrtApi* api = getApi();
+    size_t count = 0;
+    OrtStatus* status = api->SessionGetOutputCount(session_, &count);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "SessionGetOutputCount failed");
+    }
+    return count;
+}
+
+std::string Session::getInputName(size_t index) const {
+    const OrtApi* api = getApi();
+    char* name = nullptr;
+    OrtAllocator* allocator = nullptr;
+    OrtStatus* status = api->GetAllocatorWithDefaultOptions(&allocator);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "GetAllocatorWithDefaultOptions failed");
+    }
+    status = api->SessionGetInputName(session_, index, allocator, &name);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "SessionGetInputName failed");
+    }
+    std::string result(name);
+    // 不要释放 name - allocator 分配的内存由 allocator 管理
+    return result;
+}
+
+std::string Session::getOutputName(size_t index) const {
+    const OrtApi* api = getApi();
+    char* name = nullptr;
+    OrtAllocator* allocator = nullptr;
+    OrtStatus* status = api->GetAllocatorWithDefaultOptions(&allocator);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "GetAllocatorWithDefaultOptions failed");
+    }
+    status = api->SessionGetOutputName(session_, index, allocator, &name);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "SessionGetOutputName failed");
+    }
+    std::string result(name);
+    return result;
+}
+
+// ============================================================================
+// MemoryInfo
+// ============================================================================
+MemoryInfo::MemoryInfo(OrtMemoryInfo* info) : info_(info) {}
+
+MemoryInfo MemoryInfo::createCpu(OrtAllocatorType type, OrtMemType memType) {
+    const OrtApi* api = getApi();
+    OrtMemoryInfo* info = nullptr;
+    OrtStatus* status = api->CreateCpuMemoryInfo(type, memType, &info);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "CreateCpuMemoryInfo failed");
+    }
+    return MemoryInfo(info);
+}
+
+MemoryInfo::~MemoryInfo() {
+    if (info_) {
+        const OrtApi* api = getApi();
+        api->ReleaseMemoryInfo(info_);
+    }
+}
+
+// ============================================================================
+// Value
+// ============================================================================
+Value::Value(OrtValue* value) : value_(value) {}
+
+Value Value::fromRaw(OrtValue* value) {
+    return Value(value);
+}
+
+Value Value::createTensor(const MemoryInfo& info, float* data, size_t elemCount,
+                          const int64_t* shape, size_t shapeLen) {
+    const OrtApi* api = getApi();
+    OrtValue* value = nullptr;
+    OrtStatus* status = api->CreateTensorWithDataAsOrtValue(
+        info.ptr(), data, elemCount * sizeof(float),
+        shape, shapeLen, ONNX_TENSOR_ELEMENT_DATA_TYPE_FLOAT, &value);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "CreateTensorWithDataAsOrtValue failed");
+    }
+    return Value(value);
+}
+
+Value Value::createTensor(const MemoryInfo& info, int32_t* data, size_t elemCount,
+                          const int64_t* shape, size_t shapeLen) {
+    const OrtApi* api = getApi();
+    OrtValue* value = nullptr;
+    OrtStatus* status = api->CreateTensorWithDataAsOrtValue(
+        info.ptr(), data, elemCount * sizeof(int32_t),
+        shape, shapeLen, ONNX_TENSOR_ELEMENT_DATA_TYPE_INT32, &value);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "CreateTensorWithDataAsOrtValue failed");
+    }
+    return Value(value);
+}
+
+Value::~Value() {
+    if (value_) {
+        const OrtApi* api = getApi();
+        api->ReleaseValue(value_);
+    }
+}
+
+std::vector<int64_t> Value::getShape() const {
+    const OrtApi* api = getApi();
+    OrtTensorTypeAndShapeInfo* info = nullptr;
+    OrtStatus* status = api->GetTensorTypeAndShape(value_, &info);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "GetTensorTypeAndShape failed");
+    }
+    size_t dimCount = 0;
+    status = api->GetDimensionsCount(info, &dimCount);
+    std::vector<int64_t> shape(dimCount);
+    if (dimCount > 0) {
+        status = api->GetDimensions(info, shape.data(), dimCount);
+    }
+    api->ReleaseTensorTypeAndShapeInfo(info);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "GetDimensions failed");
+    }
+    return shape;
+}
+
+const float* Value::getTensorData() const {
+    const OrtApi* api = getApi();
+    void* data = nullptr;
+    OrtStatus* status = api->GetTensorMutableData(value_, &data);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "GetTensorMutableData failed");
+    }
+    return static_cast<const float*>(data);
+}
+
+Value::Value(Value&& other) noexcept : value_(other.value_) {
+    other.value_ = nullptr;
+}
+
+Value& Value::operator=(Value&& other) noexcept {
+    if (this != &other) {
+        if (value_) {
+            const OrtApi* api = getApi();
+            api->ReleaseValue(value_);
+        }
+        value_ = other.value_;
+        other.value_ = nullptr;
+    }
+    return *this;
+}
+
+// ============================================================================
+// RunOptions
+// ============================================================================
+RunOptions::RunOptions() {
+    const OrtApi* api = getApi();
+    OrtStatus* status = api->CreateRunOptions(&opts_);
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "CreateRunOptions failed");
+    }
+}
+
+RunOptions::~RunOptions() {
+    if (opts_) {
+        const OrtApi* api = getApi();
+        api->ReleaseRunOptions(opts_);
+    }
+}
+
+// ============================================================================
+// run
+// ============================================================================
+std::vector<Value> run(Session& session,
+                       const RunOptions& runOptions,
+                       const char* const* inputNames,
+                       Value* inputValues,
+                       size_t inputCount,
+                       const char* const* outputNames,
+                       size_t outputCount)
+{
+    const OrtApi* api = getApi();
+
+    // 准备输入输出 OrtValue 指针数组
+    std::vector<OrtValue*> inputPtrs(inputCount);
+    for (size_t i = 0; i < inputCount; i++) {
+        inputPtrs[i] = inputValues[i].ptr();
+    }
+
+    std::vector<OrtValue*> outputPtrs(outputCount, nullptr);
+
+    OrtStatus* status = api->Run(
+        session.ptr(),
+        runOptions.ptr(),
+        inputNames, inputPtrs.data(), static_cast<int>(inputCount),
+        outputNames, static_cast<int>(outputCount),
+        outputPtrs.data());
+
+    if (status) {
+        const char* msg = api->GetErrorMessage(status);
+        throw Exception(msg ? msg : "Run failed");
+    }
+
+    std::vector<Value> results;
+    results.reserve(outputCount);
+    for (size_t i = 0; i < outputCount; i++) {
+        results.emplace_back(Value::fromRaw(outputPtrs[i]));
+    }
+    return results;
+}
+
+} // namespace ort
+
+#endif // HAVE_ONNXRUNTIME
diff --git a/src/core/ort_minimal.h b/src/core/ort_minimal.h
new file mode 100644
index 0000000..03ea24b
--- /dev/null
+++ b/src/core/ort_minimal.h
@@ -0,0 +1,134 @@
+#pragma once
+/**
+ * @brief ONNX Runtime 轻量级 C API 包装器
+ *
+ * 替代 onnxruntime_cxx_api.h（该文件与 MinGW 存在 ABI 兼容性问题）。
+ * 直接使用 C API（onnxruntime_c_api.h），用异常替代 C 风格返回值。
+ */
+
+#ifdef HAVE_ONNXRUNTIME
+
+#ifndef ORT_MINIMAL_H
+#define ORT_MINIMAL_H
+
+/* 使用 shim 头文件处理 MinGW 兼容性问题 */
+#include "ort_api_shim.h"
+#include <string>
+#include <vector>
+#include <memory>
+#include <stdexcept>
+
+namespace ort {
+
+/** 异常类型 */
+class Exception : public std::runtime_error {
+public:
+    explicit Exception(const char* msg) : std::runtime_error(msg) {}
+    explicit Exception(const std::string& msg) : std::runtime_error(msg) {}
+};
+
+/** 获取 API 基础指针（内部使用） */
+const OrtApi* getApi();
+
+/** Env: ONNX Runtime 环境 */
+class Env {
+public:
+    explicit Env(OrtLoggingLevel logLevel = ORT_LOGGING_LEVEL_WARNING,
+                 const char* logId = "ort");
+    ~Env();
+    OrtEnv* ptr() const { return env_; }
+    Env(const Env&) = delete;
+    Env& operator=(const Env&) = delete;
+private:
+    OrtEnv* env_ = nullptr;
+};
+
+/** SessionOptions: 会话配置选项 */
+class SessionOptions {
+public:
+    SessionOptions();
+    ~SessionOptions();
+    OrtSessionOptions* ptr() const { return opts_; }
+    void setIntraOpNumThreads(int n);
+    void setGraphOptimizationLevel(GraphOptimizationLevel level);
+    SessionOptions(const SessionOptions&) = delete;
+    SessionOptions& operator=(const SessionOptions&) = delete;
+private:
+    OrtSessionOptions* opts_ = nullptr;
+};
+
+/** Session: 推理会话 */
+class Session {
+public:
+    Session(const Env& env, const char* modelPath, const SessionOptions& opts);
+    Session(const Env& env, const wchar_t* modelPath, const SessionOptions& opts);
+    ~Session();
+    OrtSession* ptr() const { return session_; }
+    size_t getInputCount() const;
+    size_t getOutputCount() const;
+    std::string getInputName(size_t index) const;
+    std::string getOutputName(size_t index) const;
+    Session(const Session&) = delete;
+    Session& operator=(const Session&) = delete;
+private:
+    OrtSession* session_ = nullptr;
+};
+
+/** MemoryInfo: 内存信息 */
+class MemoryInfo {
+public:
+    static MemoryInfo createCpu(OrtAllocatorType type = OrtDeviceAllocator,
+                                OrtMemType memType = OrtMemTypeCPU);
+    ~MemoryInfo();
+    const OrtMemoryInfo* ptr() const { return info_; }
+private:
+    explicit MemoryInfo(OrtMemoryInfo* info);
+    OrtMemoryInfo* info_ = nullptr;
+};
+
+/** Value: 张量值 */
+class Value {
+public:
+    static Value createTensor(const MemoryInfo& info, float* data, size_t elemCount,
+                              const int64_t* shape, size_t shapeLen);
+    static Value createTensor(const MemoryInfo& info, int32_t* data, size_t elemCount,
+                              const int64_t* shape, size_t shapeLen);
+    ~Value();
+    OrtValue* ptr() const { return value_; }
+    std::vector<int64_t> getShape() const;
+    const float* getTensorData() const;
+    Value(Value&& other) noexcept;
+    Value& operator=(Value&& other) noexcept;
+    Value(const Value&) = delete;
+    Value& operator=(const Value&) = delete;
+private:
+    explicit Value(OrtValue* value);
+    OrtValue* value_ = nullptr;
+public:
+    /** @brief 从原始指针构造（用于接收 C API 返回的值） */
+    static Value fromRaw(OrtValue* value);
+};
+
+/** RunOptions: 推理选项 */
+class RunOptions {
+public:
+    RunOptions();
+    ~RunOptions();
+    OrtRunOptions* ptr() const { return opts_; }
+private:
+    OrtRunOptions* opts_ = nullptr;
+};
+
+/** 推理执行 */
+std::vector<Value> run(Session& session,
+                       const RunOptions& runOptions,
+                       const char* const* inputNames,
+                       Value* inputValues,
+                       size_t inputCount,
+                       const char* const* outputNames,
+                       size_t outputCount);
+
+} // namespace ort
+
+#endif // ORT_MINIMAL_H
+#endif // HAVE_ONNXRUNTIME
diff --git a/src/core/sense_voice_engine.cpp b/src/core/sense_voice_engine.cpp
index a05ef12..7d6876d 100644
--- a/src/core/sense_voice_engine.cpp
+++ b/src/core/sense_voice_engine.cpp
@@ -3,6 +3,7 @@
 #include "sense_voice_tokenizer.h"
 #include "sense_voice_cmvn.h"
 #include "audio_processor.h"
+#include "ort_minimal.h"
 #include "utils/logger.h"
 #include "utils/timer.h"
 
@@ -19,11 +20,6 @@
 #include <algorithm>
 #include <cmath>
 
-// ONNX Runtime headers
-#ifdef HAVE_ONNXRUNTIME
-#include <onnxruntime_cxx_api.h>
-#endif
-
 static const char* const kTag = "SenseVoiceEngine";
 
 /**
@@ -93,9 +89,9 @@ static int languageToInt(const QString& lang) {
  */
 struct SenseVoiceEngine::Impl {
 #ifdef HAVE_ONNXRUNTIME
-    std::unique_ptr<Ort::Env> env;
-    std::unique_ptr<Ort::SessionOptions> sessionOptions;
-    std::unique_ptr<Ort::Session> session;
+    std::unique_ptr<ort::Env> env;
+    std::unique_ptr<ort::SessionOptions> sessionOptions;
+    std::unique_ptr<ort::Session> session;
 
     std::vector<std::string> inputNames;
     std::vector<std::string> outputNames;
@@ -111,11 +107,11 @@ struct SenseVoiceEngine::Impl {
     {
         QMutexLocker locker(&mutex);
         try {
-            auto envPtr = std::make_unique<Ort::Env>(
+            auto envPtr = std::make_unique<ort::Env>(
                 ORT_LOGGING_LEVEL_WARNING, "impress_sensevoice");
-            auto optionsPtr = std::make_unique<Ort::SessionOptions>();
-            optionsPtr->SetIntraOpNumThreads(numThreads);
-            optionsPtr->SetGraphOptimizationLevel(
+            auto optionsPtr = std::make_unique<ort::SessionOptions>();
+            optionsPtr->setIntraOpNumThreads(numThreads);
+            optionsPtr->setGraphOptimizationLevel(
                 GraphOptimizationLevel::ORT_ENABLE_ALL);
 
             if (device == "gpu") {
@@ -125,14 +121,17 @@ struct SenseVoiceEngine::Impl {
             LOG_INFO(kTag, QString("正在加载 SenseVoice 模型: %1 (线程: %2)")
                 .arg(modelPath).arg(numThreads));
 
-            auto sessionPtr = std::make_unique<Ort::Session>(
+            auto sessionPtr = std::make_unique<ort::Session>(
                 *envPtr,
+#ifdef _WIN32
+                modelPath.toStdWString().c_str(),
+#else
                 modelPath.toUtf8().constData(),
+#endif
                 *optionsPtr);
 
-            Ort::AllocatorWithDefaultOptions allocator;
-            size_t inputCount = sessionPtr->GetInputCount();
-            size_t outputCount = sessionPtr->GetOutputCount();
+            size_t inputCount = sessionPtr->getInputCount();
+            size_t outputCount = sessionPtr->getOutputCount();
 
             LOG_INFO(kTag, QString("模型有 %1 个输入, %2 个输出")
                 .arg(inputCount).arg(outputCount));
@@ -141,15 +140,13 @@ struct SenseVoiceEngine::Impl {
             outputNames.clear();
 
             for (size_t i = 0; i < inputCount; i++) {
-                auto namePtr = sessionPtr->GetInputNameAllocated(i, allocator);
-                inputNames.emplace_back(namePtr.get());
-                LOG_DEBUG(kTag, QString("输入 #%1: %2").arg(i).arg(namePtr.get()));
+                inputNames.emplace_back(sessionPtr->getInputName(i));
+                LOG_DEBUG(kTag, QString("输入 #%1: %2").arg(i).arg(QString::fromStdString(inputNames.back())));
             }
 
             for (size_t i = 0; i < outputCount; i++) {
-                auto namePtr = sessionPtr->GetOutputNameAllocated(i, allocator);
-                outputNames.emplace_back(namePtr.get());
-                LOG_DEBUG(kTag, QString("输出 #%1: %2").arg(i).arg(namePtr.get()));
+                outputNames.emplace_back(sessionPtr->getOutputName(i));
+                LOG_DEBUG(kTag, QString("输出 #%1: %2").arg(i).arg(QString::fromStdString(outputNames.back())));
             }
 
             env = std::move(envPtr);
@@ -174,7 +171,7 @@ struct SenseVoiceEngine::Impl {
 
             LOG_INFO(kTag, QString("SenseVoice 模型加载成功: %1").arg(modelPath));
             return true;
-        } catch (const Ort::Exception& e) {
+        } catch (const ort::Exception& e) {
             errorMsg = QString("ONNX 异常: %1").arg(e.what());
             LOG_ERROR(kTag, errorMsg);
             return false;
@@ -185,6 +182,21 @@ struct SenseVoiceEngine::Impl {
         }
     }
 
+    QMutex mutex;
+#else
+    // 占位实现：无 ONNX Runtime 时仅提供基本结构
+    bool loadInWorker(const QString& /*modelPath*/,
+                      const QString& /*tokensPath*/,
+                      const QString& /*device*/,
+                      int /*numThreads*/,
+                      QString& errorMsg)
+    {
+        errorMsg = "ONNX Runtime 未安装，推理功能不可用。"
+                   "请在 third_party/onnxruntime/ 中部署 ONNX Runtime 后重新编译。";
+        LOG_ERROR(kTag, errorMsg);
+        return false;
+    }
+
     QMutex mutex;
 #endif
 };
@@ -206,11 +218,13 @@ bool SenseVoiceEngine::loadModelSync(const QString& modelPath,
     if (loaded_) {
         LOG_WARNING(kTag, "模型已加载，先卸载再加载");
         // 内联清理，避免调用 unloadModel() 导致 mutex 递归死锁
+#ifdef HAVE_ONNXRUNTIME
         impl_->session.reset();
         impl_->sessionOptions.reset();
         impl_->env.reset();
         impl_->features.reset();
         impl_->tokenizer = SenseVoiceTokenizer();
+#endif
         loaded_ = false;
     }
 
@@ -235,11 +249,13 @@ void SenseVoiceEngine::loadModelAsync(const QString& modelPath,
     if (loaded_) {
         LOG_WARNING(kTag, "模型已加载，先卸载再加载");
         // 内联清理，避免调用 unloadModel() 导致 mutex 递归死锁
+#ifdef HAVE_ONNXRUNTIME
         impl_->session.reset();
         impl_->sessionOptions.reset();
         impl_->env.reset();
         impl_->features.reset();
         impl_->tokenizer = SenseVoiceTokenizer();
+#endif
         loaded_ = false;
     }
 
@@ -417,7 +433,7 @@ RecognitionResult SenseVoiceEngine::infer(const std::vector<float>& samples,
 
         // 输入: x, x_length, language, text_norm
         int64_t xShape[] = {1, numFrames, kLFROutputDim};
-        auto memInfo = Ort::MemoryInfo::CreateCpu(OrtDeviceAllocator, OrtMemTypeCPU);
+        auto memInfo = ort::MemoryInfo::createCpu(OrtDeviceAllocator, OrtMemTypeCPU);
 
         int32_t xLengthVal = numFrames;
         int64_t xLengthShape[] = {1};
@@ -429,14 +445,14 @@ RecognitionResult SenseVoiceEngine::infer(const std::vector<float>& samples,
         int32_t textNormVal = kTextNormWithITN;
         int64_t textNormShape[] = {1};
 
-        std::vector<Ort::Value> inputTensors;
-        inputTensors.push_back(Ort::Value::CreateTensor<float>(
+        std::vector<ort::Value> inputTensors;
+        inputTensors.push_back(ort::Value::createTensor(
             memInfo, lfrFeatures.data(), lfrFeatures.size(), xShape, 3));
-        inputTensors.push_back(Ort::Value::CreateTensor<int32_t>(
+        inputTensors.push_back(ort::Value::createTensor(
             memInfo, &xLengthVal, 1, xLengthShape, 1));
-        inputTensors.push_back(Ort::Value::CreateTensor<int32_t>(
+        inputTensors.push_back(ort::Value::createTensor(
             memInfo, &langVal, 1, langShape, 1));
-        inputTensors.push_back(Ort::Value::CreateTensor<int32_t>(
+        inputTensors.push_back(ort::Value::createTensor(
             memInfo, &textNormVal, 1, textNormShape, 1));
 
         // 4. 运行推理
@@ -446,8 +462,10 @@ RecognitionResult SenseVoiceEngine::infer(const std::vector<float>& samples,
         std::vector<const char*> outputNamePtrs;
         for (auto& name : impl_->outputNames) outputNamePtrs.push_back(name.c_str());
 
-        auto outputTensors = impl_->session->Run(
-            Ort::RunOptions{nullptr},
+        ort::RunOptions runOptions;
+        auto outputTensors = ort::run(
+            *impl_->session,
+            runOptions,
             inputNamePtrs.data(), inputTensors.data(), inputTensors.size(),
             outputNamePtrs.data(), outputNamePtrs.size());
 
@@ -455,8 +473,8 @@ RecognitionResult SenseVoiceEngine::infer(const std::vector<float>& samples,
 
         // 5. 解析输出 logits [1, seq_len, 25055]
         auto& outputTensor = outputTensors[0];
-        auto shape = outputTensor.GetTensorTypeAndShapeInfo().GetShape();
-        const float* logitsData = outputTensor.GetTensorData<float>();
+        auto shape = outputTensor.getShape();
+        const float* logitsData = outputTensor.getTensorData();
 
         LOG_DEBUG(kTag, QString("输出维度: [%1, %2, %3]")
             .arg(shape[0]).arg(shape[1]).arg(shape[2]));
diff --git a/src/core/stt_engine.cpp b/src/core/stt_engine.cpp
index 0fe97a2..b426d4a 100644
--- a/src/core/stt_engine.cpp
+++ b/src/core/stt_engine.cpp
@@ -2,6 +2,7 @@
 #include "mel_spectrogram.h"
 #include "whisper_tokenizer.h"
 #include "audio_processor.h"
+#include "ort_minimal.h"
 #include "utils/logger.h"
 #include "utils/timer.h"
 
@@ -15,11 +16,6 @@
 #include <cmath>
 #include <cstring>
 
-// ONNX Runtime headers
-#ifdef HAVE_ONNXRUNTIME
-#include <onnxruntime_cxx_api.h>
-#endif
-
 static const char* const kTag = "STTEngine";
 
 // Whisper 常量
@@ -33,9 +29,9 @@ namespace impress {
  */
 struct STTEngine::Impl {
 #ifdef HAVE_ONNXRUNTIME
-    std::unique_ptr<Ort::Env> env;
-    std::unique_ptr<Ort::SessionOptions> sessionOptions;
-    std::unique_ptr<Ort::Session> session;
+    std::unique_ptr<ort::Env> env;
+    std::unique_ptr<ort::SessionOptions> sessionOptions;
+    std::unique_ptr<ort::Session> session;
 
     std::vector<std::string> inputNames;
     std::vector<std::string> outputNames;
@@ -50,11 +46,11 @@ struct STTEngine::Impl {
     {
         QMutexLocker locker(&mutex);
         try {
-            auto envPtr = std::make_unique<Ort::Env>(
+            auto envPtr = std::make_unique<ort::Env>(
                 ORT_LOGGING_LEVEL_WARNING, "impress_voice");
-            auto optionsPtr = std::make_unique<Ort::SessionOptions>();
-            optionsPtr->SetIntraOpNumThreads(numThreads);
-            optionsPtr->SetGraphOptimizationLevel(
+            auto optionsPtr = std::make_unique<ort::SessionOptions>();
+            optionsPtr->setIntraOpNumThreads(numThreads);
+            optionsPtr->setGraphOptimizationLevel(
                 GraphOptimizationLevel::ORT_ENABLE_ALL);
 
             if (device == "gpu") {
@@ -63,14 +59,17 @@ struct STTEngine::Impl {
 
             LOG_INFO(kTag, QString("正在加载模型: %1 (线程: %2)").arg(modelPath).arg(numThreads));
 
-            auto sessionPtr = std::make_unique<Ort::Session>(
+            auto sessionPtr = std::make_unique<ort::Session>(
                 *envPtr,
+#ifdef _WIN32
+                modelPath.toStdWString().c_str(),
+#else
                 modelPath.toUtf8().constData(),
+#endif
                 *optionsPtr);
 
-            Ort::AllocatorWithDefaultOptions allocator;
-            size_t inputCount = sessionPtr->GetInputCount();
-            size_t outputCount = sessionPtr->GetOutputCount();
+            size_t inputCount = sessionPtr->getInputCount();
+            size_t outputCount = sessionPtr->getOutputCount();
 
             LOG_INFO(kTag, QString("模型有 %1 个输入, %2 个输出")
                 .arg(inputCount).arg(outputCount));
@@ -79,15 +78,13 @@ struct STTEngine::Impl {
             outputNames.clear();
 
             for (size_t i = 0; i < inputCount; i++) {
-                auto namePtr = sessionPtr->GetInputNameAllocated(i, allocator);
-                inputNames.emplace_back(namePtr.get());
-                LOG_DEBUG(kTag, QString("输入 #%1: %2").arg(i).arg(namePtr.get()));
+                inputNames.emplace_back(sessionPtr->getInputName(i));
+                LOG_DEBUG(kTag, QString("输入 #%1: %2").arg(i).arg(QString::fromStdString(inputNames.back())));
             }
 
             for (size_t i = 0; i < outputCount; i++) {
-                auto namePtr = sessionPtr->GetOutputNameAllocated(i, allocator);
-                outputNames.emplace_back(namePtr.get());
-                LOG_DEBUG(kTag, QString("输出 #%1: %2").arg(i).arg(namePtr.get()));
+                outputNames.emplace_back(sessionPtr->getOutputName(i));
+                LOG_DEBUG(kTag, QString("输出 #%1: %2").arg(i).arg(QString::fromStdString(outputNames.back())));
             }
 
             env = std::move(envPtr);
@@ -106,7 +103,7 @@ struct STTEngine::Impl {
 
             LOG_INFO(kTag, QString("模型加载成功: %1").arg(modelPath));
             return true;
-        } catch (const Ort::Exception& e) {
+        } catch (const ort::Exception& e) {
             errorMsg = QString("ONNX 异常: %1").arg(e.what());
             LOG_ERROR(kTag, errorMsg);
             return false;
@@ -117,6 +114,20 @@ struct STTEngine::Impl {
         }
     }
 
+    QMutex mutex;
+#else
+    // 占位实现：无 ONNX Runtime 时仅提供基本结构
+    bool loadInWorker(const QString& /*modelPath*/,
+                      const QString& /*device*/,
+                      int /*numThreads*/,
+                      QString& errorMsg)
+    {
+        errorMsg = "ONNX Runtime 未安装，推理功能不可用。"
+                   "请在 third_party/onnxruntime/ 中部署 ONNX Runtime 后重新编译。";
+        LOG_ERROR(kTag, errorMsg);
+        return false;
+    }
+
     QMutex mutex;
 #endif
 };
@@ -276,9 +287,10 @@ RecognitionResult STTEngine::infer(const std::vector<float>& samples,
         QMutexLocker locker(&impl_->mutex);
 
         int64_t melShape[] = {1, kMelBins, static_cast<int64_t>(nFrames)};
-        auto memInfo = Ort::MemoryInfo::CreateCpu(OrtDeviceAllocator, OrtMemTypeCPU);
-        std::vector<Ort::Value> inputTensors;
-        inputTensors.push_back(Ort::Value::CreateTensor<float>(
+        auto memInfo = ort::MemoryInfo::createCpu(OrtDeviceAllocator, OrtMemTypeCPU);
+
+        std::vector<ort::Value> inputTensors;
+        inputTensors.push_back(ort::Value::createTensor(
             memInfo, melSpec.data(), melSpec.size(), melShape, 3));
 
         std::vector<const char*> inputNamePtrs;
@@ -286,8 +298,10 @@ RecognitionResult STTEngine::infer(const std::vector<float>& samples,
         std::vector<const char*> outputNamePtrs;
         for (auto& name : impl_->outputNames) outputNamePtrs.push_back(name.c_str());
 
-        auto outputTensors = impl_->session->Run(
-            Ort::RunOptions{nullptr},
+        ort::RunOptions runOptions;
+        auto outputTensors = ort::run(
+            *impl_->session,
+            runOptions,
             inputNamePtrs.data(), inputTensors.data(), inputTensors.size(),
             outputNamePtrs.data(), impl_->outputNames.size());
 
@@ -295,8 +309,8 @@ RecognitionResult STTEngine::infer(const std::vector<float>& samples,
 
         // 4. 解析输出
         auto& outputTensor = outputTensors[0];
-        auto shape = outputTensor.GetTensorTypeAndShapeInfo().GetShape();
-        const float* outputData = outputTensor.GetTensorMutableData<float>();
+        auto shape = outputTensor.getShape();
+        const float* outputData = outputTensor.getTensorData();
 
         LOG_DEBUG(kTag, QString("输出维度: %1").arg(shape.size()));
         for (size_t i = 0; i < shape.size(); i++) {
diff --git a/src/core/win_hotkey.cpp b/src/core/win_hotkey.cpp
index c10d952..6296902 100644
--- a/src/core/win_hotkey.cpp
+++ b/src/core/win_hotkey.cpp
@@ -5,6 +5,8 @@
 #include <windows.h>
 #include <QAbstractNativeEventFilter>
 #include <QGuiApplication>
+#include <QThread>
+#include <QWidget>
 #endif
 
 static const char* const kTag = "CapsLockVoiceHotkey";
@@ -20,6 +22,7 @@ struct CapsLockVoiceHotkey::Impl {
     bool longPressFired = false;
     bool pollThreadRunning = false;
     void* nativeEventFilter = nullptr;
+    QWidget* hiddenWindow = nullptr;
     static constexpr int kLongPressMs = 1000;
 #endif
 };
@@ -63,14 +66,19 @@ bool CapsLockVoiceHotkey::start() {
     if (active_) return true;
 
 #ifdef Q_OS_WIN
-    HWND hwnd = reinterpret_cast<HWND>(QGuiApplication::instance()->winId());
-    if (!hwnd) {
-        // Try to get the top-level widget's window handle
-        hwnd = GetForegroundWindow();
+    // 创建隐藏窗口用于接收 WM_HOTKEY 消息
+    if (!impl_->hiddenWindow) {
+        impl_->hiddenWindow = new QWidget();
+        impl_->hiddenWindow->setObjectName("HotkeyReceiver");
+        impl_->hiddenWindow->setWindowFlags(Qt::Tool | Qt::FramelessWindowHint);
+        impl_->hiddenWindow->resize(0, 0);
     }
+    // 确保窗口已创建（show 会创建原生句柄）
+    impl_->hiddenWindow->show();
 
+    HWND hwnd = reinterpret_cast<HWND>(impl_->hiddenWindow->winId());
     if (!hwnd) {
-        emit error("无法获取窗口句柄");
+        emit error("无法创建窗口句柄");
         return false;
     }
 
@@ -146,11 +154,14 @@ void CapsLockVoiceHotkey::stop() {
     }
 
     // 注销快捷键
-    HWND hwnd = reinterpret_cast<HWND>(QGuiApplication::instance()->winId());
-    if (hwnd && impl_->hotkeyId) {
-        UnregisterHotKey(hwnd, impl_->hotkeyId);
-        GlobalDeleteAtom(impl_->hotkeyId);
-        impl_->hotkeyId = 0;
+    if (impl_->hiddenWindow) {
+        HWND hwnd = reinterpret_cast<HWND>(impl_->hiddenWindow->winId());
+        if (hwnd && impl_->hotkeyId) {
+            UnregisterHotKey(hwnd, impl_->hotkeyId);
+            GlobalDeleteAtom(impl_->hotkeyId);
+            impl_->hotkeyId = 0;
+        }
+        impl_->hiddenWindow->hide();
     }
 
     active_ = false;
@@ -208,7 +219,7 @@ void CapsLockVoiceHotkey::onHotkeyEvent(int /*hotkeyId*/) {
             QThread::msleep(50);
         }
         impl_->pollThreadRunning = false;
-    }).start();
+    })->start();
 }
 #endif
 
diff --git a/src/core/win_hotkey.h b/src/core/win_hotkey.h
index 791aaa5..9ed10ce 100644
--- a/src/core/win_hotkey.h
+++ b/src/core/win_hotkey.h
@@ -49,6 +49,7 @@ signals:
     void error(const QString& message);
 
     /** @brief 处理 WM_HOTKEY 事件（由原生事件过滤器调用） */
+public:
     void onHotkeyEvent(int hotkeyId);
 
 private:
diff --git a/src/ui/settings_page.cpp b/src/ui/settings_page.cpp
index 7869cc1..809fa6a 100644
--- a/src/ui/settings_page.cpp
+++ b/src/ui/settings_page.cpp
@@ -17,6 +17,7 @@
 #include <QLabel>
 #include <QFileDialog>
 #include <QMessageBox>
+#include <QScrollArea>
 
 static const char* const kTag = "SettingsPage";
 
@@ -34,10 +35,24 @@ SettingsPage::~SettingsPage() = default;
 
 void SettingsPage::setupUI() {
     auto* mainLayout = new QVBoxLayout(this);
+    mainLayout->setContentsMargins(0, 0, 0, 0);
+
+    // ---- 可滚动内容区域 ----
+    auto* scrollArea = new QScrollArea(this);
+    scrollArea->setWidgetResizable(true);
+    scrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    scrollArea->setFrameShape(QFrame::NoFrame);
+
+    auto* contentWidget = new QWidget(scrollArea);
+    auto* contentLayout = new QVBoxLayout(contentWidget);
+    contentLayout->setContentsMargins(12, 8, 12, 8);
+    contentLayout->setSpacing(12);
 
     // STT 设置
-    auto* sttGroup = new QGroupBox("STT 推理设置", this);
+    auto* sttGroup = new QGroupBox("STT 推理设置", contentWidget);
     auto* sttLayout = new QFormLayout(sttGroup);
+    sttLayout->setSpacing(8);
+    sttLayout->setContentsMargins(10, 12, 10, 12);
 
     auto* modelRow = new QHBoxLayout();
     modelPathEdit_ = new QLineEdit(this);
@@ -109,11 +124,13 @@ void SettingsPage::setupUI() {
     temperatureSpin_->setValue(0.0);
     sttLayout->addRow("温度 (Temperature):", temperatureSpin_);
 
-    mainLayout->addWidget(sttGroup);
+    contentLayout->addWidget(sttGroup);
 
     // 音频设置
-    auto* audioGroup = new QGroupBox("音频设置", this);
+    auto* audioGroup = new QGroupBox("音频设置", contentWidget);
     auto* audioLayout = new QFormLayout(audioGroup);
+    audioLayout->setSpacing(8);
+    audioLayout->setContentsMargins(10, 12, 10, 12);
 
     // 音频输入设备选择器
     audioDeviceCombo_ = new QComboBox(this);
@@ -150,11 +167,13 @@ void SettingsPage::setupUI() {
     paddingSpin_->setSuffix(" ms");
     audioLayout->addRow("块间重叠:", paddingSpin_);
 
-    mainLayout->addWidget(audioGroup);
+    contentLayout->addWidget(audioGroup);
 
     // UI 设置
-    auto* uiGroup = new QGroupBox("界面设置", this);
+    auto* uiGroup = new QGroupBox("界面设置", contentWidget);
     auto* uiLayout = new QFormLayout(uiGroup);
+    uiLayout->setSpacing(8);
+    uiLayout->setContentsMargins(10, 12, 10, 12);
 
     themeCombo_ = new QComboBox(this);
     themeCombo_->addItems({"light", "dark"});
@@ -173,26 +192,32 @@ void SettingsPage::setupUI() {
     showConfidenceCheck_->setChecked(true);
     uiLayout->addRow("置信度显示:", showConfidenceCheck_);
 
-    mainLayout->addWidget(uiGroup);
+    contentLayout->addWidget(uiGroup);
+    contentLayout->addStretch();
 
-    // 操作按钮
-    auto* btnLayout = new QHBoxLayout();
-    auto* saveBtn = new QPushButton("保存配置", this);
+    scrollArea->setWidget(contentWidget);
+    mainLayout->addWidget(scrollArea);
+
+    // ---- 底部操作按钮（固定不滚动） ----
+    auto* btnBar = new QWidget(this);
+    auto* btnLayout = new QHBoxLayout(btnBar);
+    btnLayout->setContentsMargins(12, 4, 12, 8);
+
+    auto* saveBtn = new QPushButton("保存配置", btnBar);
     saveBtn->setStyleSheet("QPushButton { font-weight: bold; padding: 8px 16px; }");
     connect(saveBtn, &QPushButton::clicked, this, &SettingsPage::onSaveConfig);
     btnLayout->addWidget(saveBtn);
 
-    auto* resetBtn = new QPushButton("恢复默认", this);
+    auto* resetBtn = new QPushButton("恢复默认", btnBar);
     connect(resetBtn, &QPushButton::clicked, this, &SettingsPage::onResetConfig);
     btnLayout->addWidget(resetBtn);
     btnLayout->addStretch();
 
-    statusLabel_ = new QLabel("配置未修改", this);
+    statusLabel_ = new QLabel("配置未修改", btnBar);
     statusLabel_->setStyleSheet("color: gray;");
     btnLayout->addWidget(statusLabel_);
 
-    mainLayout->addLayout(btnLayout);
-    mainLayout->addStretch();
+    mainLayout->addWidget(btnBar);
 }
 
 void SettingsPage::loadFromConfig() {