diff --git a/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/BugCollect.kt b/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/BugCollect.kt
index 45ee491..70cab38 100644
--- a/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/BugCollect.kt
+++ b/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/BugCollect.kt
@@ -131,11 +131,15 @@ object BugCollect {
 
     fun startCrashCapture() {
         if (crashCaptureStarted) return
-        val bugCollectApiUrl = XuqmSDK.bugCollectApiUrl ?: return
+        if (!XuqmSDK.isInitialized()) return
+        // bugCollectApiUrl 由远端配置下发，启动时可能尚未到达。
+        // 用 platformUrl 推导兜底地址：崩溃文件里会保存此 URL，下次启动时用它上报。
+        val logApiUrl = XuqmSDK.bugCollectApiUrl
+            ?: (XuqmSDK.platformUrl.trimEnd('/') + "/api/bugcollect/")
         crashCaptureStarted = true
         CrashCapture.start(
             appContext = XuqmSDK.appContext,
-            logApiUrl = bugCollectApiUrl,
+            logApiUrl = logApiUrl,
             appKey = XuqmSDK.appKey,
             getUserId = { XuqmSDK.getUserId() },
         )
diff --git a/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/LogQueue.kt b/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/LogQueue.kt
index a13d386..2ab2a39 100644
--- a/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/LogQueue.kt
+++ b/sdk-bugcollect/src/main/java/com/xuqm/sdk/bugcollect/LogQueue.kt
@@ -94,7 +94,9 @@ internal class LogQueue(
                         userId = obj.optNullableString("userId"),
                         user = IssueEvent.UserInfo(id = obj.optNullableString("userId")),
                     )
-                    LogUploader.uploadIssue(logApiUrl, event)
+                    // 优先使用崩溃文件里保存的 URL（崩溃时可能远端配置未到达）
+                    val uploadUrl = obj.optString("logApiUrl").takeIf { it.isNotBlank() } ?: logApiUrl
+                    LogUploader.uploadIssue(uploadUrl, event)
                     file.delete()
                 }.onFailure { e ->
                     Log.e(TAG, "Failed to upload crash: ${file.name}", e)
diff --git a/sdk-core/src/main/java/com/xuqm/sdk/XuqmSDK.kt b/sdk-core/src/main/java/com/xuqm/sdk/XuqmSDK.kt
index 5f62659..996661b 100644
--- a/sdk-core/src/main/java/com/xuqm/sdk/XuqmSDK.kt
+++ b/sdk-core/src/main/java/com/xuqm/sdk/XuqmSDK.kt
@@ -40,6 +40,9 @@ object XuqmSDK {
     private var initialized = false
     @Volatile private var initializedAppKey: String? = null
     @Volatile private var resolvedPlatformUrl: String = DEFAULT_PLATFORM_URL
+
+    /** 初始化时使用的平台地址（同步可用，远端配置到达前即有值）。 */
+    val platformUrl: String get() = resolvedPlatformUrl
     @Volatile private var loginSession: XuqmLoginSession? = null
     @Volatile private var userInfoValue: XuqmUserInfo? = null
     @Volatile var platformConfig: SdkPlatformConfig? = null
diff --git a/sdk-core/src/main/java/com/xuqm/sdk/internal/XuqmInitializerProvider.kt b/sdk-core/src/main/java/com/xuqm/sdk/internal/XuqmInitializerProvider.kt
index 819af2d..f17b8c9 100644
--- a/sdk-core/src/main/java/com/xuqm/sdk/internal/XuqmInitializerProvider.kt
+++ b/sdk-core/src/main/java/com/xuqm/sdk/internal/XuqmInitializerProvider.kt
@@ -19,12 +19,26 @@ class XuqmInitializerProvider : ContentProvider() {
             if (!XuqmSDK.isInitialized()) {
                 XuqmSDK.autoInitialize(ctx)
             }
+            // 在 SDK 初始化后立即启动崩溃捕获，确保任何后续崩溃都能被落盘。
+            // startCrashCapture 内部使用 platformUrl 兜底，无需等远端配置到达。
+            startCrashCaptureIfAvailable()
         }.onFailure { e ->
             Log.w("XuqmSDK", "Auto-initialization skipped: ${e.message}")
         }
         return true
     }
 
+    private fun startCrashCaptureIfAvailable() {
+        runCatching {
+            val bugCollect = Class.forName("com.xuqm.sdk.bugcollect.BugCollect")
+            val companion = bugCollect.getField("INSTANCE").get(null)
+            val method = bugCollect.getMethod("startCrashCapture")
+            method.invoke(companion)
+        }.onFailure {
+            // sdk-bugcollect 未依赖时跳过，不影响其他功能
+        }
+    }
+
     override fun query(uri: Uri, projection: Array<out String>?, selection: String?, selectionArgs: Array<out String>?, sortOrder: String?): Cursor? = null
     override fun getType(uri: Uri): String? = null
     override fun insert(uri: Uri, values: ContentValues?): Uri? = null