diff --git a/app/src/main/java/com/xiaoqu/watch/ui/task/TaskListFragment.kt b/app/src/main/java/com/xiaoqu/watch/ui/task/TaskListFragment.kt
index b664b87..487dd8d 100644
--- a/app/src/main/java/com/xiaoqu/watch/ui/task/TaskListFragment.kt
+++ b/app/src/main/java/com/xiaoqu/watch/ui/task/TaskListFragment.kt
@@ -517,19 +517,19 @@ class TaskListFragment : BaseFragment<FragmentTaskListBinding>() {
         overlay.setOnTouchListener { _, event -> detector.onTouchEvent(event); true }
     }
 
-    /** 异步加载图片到 ImageView（使用系统 HttpURLConnection） */
+    /** 异步加载图片到 ImageView（使用 app OkHttp 4.12 + Conscrypt） */
     private fun loadImage(imageView: android.widget.ImageView, url: String) {
         viewLifecycleOwner.lifecycleScope.launch {
             try {
                 val bitmap = kotlinx.coroutines.withContext(kotlinx.coroutines.Dispatchers.IO) {
-                    val conn = java.net.URL(url).openConnection() as java.net.HttpURLConnection
-                    conn.connectTimeout = 10000
-                    conn.readTimeout = 10000
-                    conn.connect()
-                    if (conn.responseCode == 200) {
-                        conn.inputStream.use { android.graphics.BitmapFactory.decodeStream(it) }
+                    val request = okhttp3.Request.Builder().url(url).build()
+                    val response = downloadClient.newCall(request).execute()
+                    if (response.isSuccessful) {
+                        response.body?.byteStream()?.use {
+                            android.graphics.BitmapFactory.decodeStream(it)
+                        }
                     } else {
-                        Timber.w("图片HTTP错误: ${conn.responseCode} $url")
+                        Timber.w("图片HTTP错误: ${response.code} $url")
                         null
                     }
                 }
@@ -598,21 +598,27 @@ class TaskListFragment : BaseFragment<FragmentTaskListBinding>() {
         }
     }
 
-    /** 下载音频文件到缓存目录（使用系统 HttpURLConnection） */
+    /** 用于下载 OSS 资源的 OkHttp 客户端（无拦截器，配合 Conscrypt TLS） */
+    private val downloadClient by lazy {
+        okhttp3.OkHttpClient.Builder()
+            .connectTimeout(15, java.util.concurrent.TimeUnit.SECONDS)
+            .readTimeout(15, java.util.concurrent.TimeUnit.SECONDS)
+            .build()
+    }
+
+    /** 下载音频文件到缓存目录（使用 app OkHttp 4.12 + Conscrypt） */
     private fun downloadToCache(url: String): java.io.File? {
         return try {
-            val conn = java.net.URL(url).openConnection() as java.net.HttpURLConnection
-            conn.connectTimeout = 15000
-            conn.readTimeout = 15000
-            conn.connect()
-            if (conn.responseCode != 200) {
-                Timber.w("语音下载HTTP错误: ${conn.responseCode}")
+            val request = okhttp3.Request.Builder().url(url).build()
+            val response = downloadClient.newCall(request).execute()
+            if (!response.isSuccessful) {
+                Timber.w("语音下载HTTP错误: ${response.code}")
                 return null
             }
             // 写入缓存文件
             val fileName = "voice_${url.hashCode()}.mp3"
             val cacheFile = java.io.File(requireContext().cacheDir, fileName)
-            conn.inputStream.use { input ->
+            response.body?.byteStream()?.use { input ->
                 cacheFile.outputStream().use { output ->
                     input.copyTo(output)
                 }