diff --git a/build-logic/convention/src/main/java/com/rtbishop/look4sat/convention/CoreDataPlugin.kt b/build-logic/convention/src/main/java/com/rtbishop/look4sat/convention/CoreDataPlugin.kt
index 3a1e7ab1..2bd6b4a8 100644
--- a/build-logic/convention/src/main/java/com/rtbishop/look4sat/convention/CoreDataPlugin.kt
+++ b/build-logic/convention/src/main/java/com/rtbishop/look4sat/convention/CoreDataPlugin.kt
@@ -35,6 +35,9 @@ internal class CoreDataPlugin : Plugin<Project> {
             ksp(libs.androidx.room.compiler)
             implementation(libs.kotlin.coroutines)
             implementation(libs.other.okhttp)
+            // android.jar's org.json is a stub ("not mocked") in unit tests;
+            // provide a real implementation so JSON parsing is testable.
+            testImplementation(libs.test.json)
         }
     }
 }
diff --git a/core/data/src/main/java/com/rtbishop/look4sat/core/data/repository/AmSatRepository.kt b/core/data/src/main/java/com/rtbishop/look4sat/core/data/repository/AmSatRepository.kt
index 19c97bfe..598a2595 100644
--- a/core/data/src/main/java/com/rtbishop/look4sat/core/data/repository/AmSatRepository.kt
+++ b/core/data/src/main/java/com/rtbishop/look4sat/core/data/repository/AmSatRepository.kt
@@ -221,7 +221,22 @@ class AmSatRepository(
                 }
             }
             val days = (0 until 3).map { d ->
-                SatDay(dateLabel = labels[d], slots = slots.subList(d * 12, (d + 1) * 12))
+                // 当天最近连续相同状态报告数:从最新一条往回数,遇状态不同即停。
+                // 空时段(无报告)不打断;按状态文本严格比较,不跨天。
+                val dayStart = nowSec - (d + 1) * 86400L
+                val dayEnd = nowSec - d * 86400L
+                val dayReports = byName[name].orEmpty()
+                    .filter { it.reportedTimeUtcSec in dayStart until dayEnd }
+                    .sortedByDescending { it.reportedTimeUtcSec }
+                val streakCount = if (dayReports.isEmpty()) 0 else {
+                    val newestStatus = dayReports.first().report
+                    dayReports.takeWhile { it.report == newestStatus }.size
+                }
+                SatDay(
+                    dateLabel = labels[d],
+                    slots = slots.subList(d * 12, (d + 1) * 12),
+                    streakCount = streakCount
+                )
             }
             SatStatus(name = name, days = days)
         }
diff --git a/core/data/src/test/java/com/rtbishop/look4sat/core/data/repository/AmSatRepositoryTest.kt b/core/data/src/test/java/com/rtbishop/look4sat/core/data/repository/AmSatRepositoryTest.kt
index 7b883fba..579f94a5 100644
--- a/core/data/src/test/java/com/rtbishop/look4sat/core/data/repository/AmSatRepositoryTest.kt
+++ b/core/data/src/test/java/com/rtbishop/look4sat/core/data/repository/AmSatRepositoryTest.kt
@@ -12,6 +12,10 @@ import org.junit.Assert.assertNull
 import org.junit.Assert.assertSame
 import org.junit.Test
 import java.io.InputStream
+import java.text.SimpleDateFormat
+import java.util.Date
+import java.util.Locale
+import java.util.TimeZone
 
 class AmSatRepositoryTest {
 
@@ -75,6 +79,52 @@ class AmSatRepositoryTest {
         assertEquals(1, remoteSource.catalogRequests)
         assertEquals(1, remoteSource.reportRequests)
     }
+
+    @Test
+    fun buildStatusesStreakCountsConsecutiveSameStatusReportsPerDay() = runTest {
+        val nowSec = System.currentTimeMillis() / 1000
+        val remoteSource = FakeAmSatRemoteSource(
+            reportsJson = amSatReportsJson(
+                // 当天(day 0)最新槽(slot 0)混合状态:最新 Heard、次新 Heard、再旧 Not Heard → 连续=2
+                report("r1", "AO-7", "Heard", nowSec - 3600),
+                report("r2", "AO-7", "Heard", nowSec - 5400),
+                report("r3", "AO-7", "Not Heard", nowSec - 7000),
+                // 空时段(无报告)不打断:slot 8 的 Heard 更旧,不应计入(被 r3 打断)
+                report("r4", "AO-7", "Heard", nowSec - 63000),
+                // 前一天(day 1):最新 Heard,更旧的 Not Heard → 连续=1,且不跨天合并
+                report("r5", "AO-7", "Heard", nowSec - 90000),
+                report("r6", "AO-7", "Not Heard", nowSec - 100000)
+                // day 2 无报告 → 0
+            )
+        )
+        val repository = AmSatRepository(remoteSource)
+
+        val page = repository.fetchStatus()
+        val status = page?.statuses?.single()
+        assertEquals("AO-7", status?.name)
+        assertEquals(3, status?.days?.size)
+
+        assertEquals(2, status?.days?.get(0)?.streakCount)
+        assertEquals(1, status?.days?.get(1)?.streakCount)
+        assertEquals(0, status?.days?.get(2)?.streakCount)
+    }
+
+    @Test
+    fun buildStatusesStreakCountsAllReportsWhenStatusNeverChanges() = runTest {
+        val nowSec = System.currentTimeMillis() / 1000
+        val remoteSource = FakeAmSatRemoteSource(
+            reportsJson = amSatReportsJson(
+                report("r1", "AO-7", "Heard", nowSec - 1800),
+                report("r2", "AO-7", "Heard", nowSec - 3600),
+                report("r3", "AO-7", "Heard", nowSec - 5400),
+                report("r4", "AO-7", "Heard", nowSec - 30000)
+            )
+        )
+        val repository = AmSatRepository(remoteSource)
+
+        val page = repository.fetchStatus()
+        assertEquals(4, page?.statuses?.single()?.days?.get(0)?.streakCount)
+    }
 }
 
 private fun AmSatRepository.seedStatusCache(page: SatStatusPage) {
@@ -83,7 +133,10 @@ private fun AmSatRepository.seedStatusCache(page: SatStatusPage) {
     cacheField.set(this, page)
 }
 
-private class FakeAmSatRemoteSource(private val responseDelayMillis: Long = 0L) : IRemoteSource {
+private class FakeAmSatRemoteSource(
+    private val responseDelayMillis: Long = 0L,
+    private val reportsJson: String = """{"data":[]}"""
+) : IRemoteSource {
     var catalogRequests = 0
     var reportRequests = 0
 
@@ -100,8 +153,19 @@ private class FakeAmSatRemoteSource(private val responseDelayMillis: Long = 0L)
     override suspend fun getAmSatReports(hours: Int, limit: Int): String? {
         if (responseDelayMillis > 0L) delay(responseDelayMillis)
         reportRequests += 1
-        return """{"data":[]}"""
+        return reportsJson
     }
 
     override suspend fun submitAmSatReport(payloadJson: String): Pair<Int, String>? = null
 }
+
+private fun amSatReportsJson(vararg reports: String): String =
+    """{"data":[${reports.joinToString(",")}]}"""
+
+private fun report(id: String, name: String, status: String, epochSec: Long): String =
+    """{"id":"$id","name":"$name","callsign":"BA7OPF","report":"$status","grid_square":"OL62","reported_time":"${isoUtc(epochSec)}"}"""
+
+private fun isoUtc(epochSec: Long): String =
+    SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", Locale.US).apply {
+        timeZone = TimeZone.getTimeZone("UTC")
+    }.format(Date(epochSec * 1000))
diff --git a/core/domain/src/main/java/com/rtbishop/look4sat/core/domain/model/SatStatus.kt b/core/domain/src/main/java/com/rtbishop/look4sat/core/domain/model/SatStatus.kt
index 062ff42e..08610bf4 100644
--- a/core/domain/src/main/java/com/rtbishop/look4sat/core/domain/model/SatStatus.kt
+++ b/core/domain/src/main/java/com/rtbishop/look4sat/core/domain/model/SatStatus.kt
@@ -20,7 +20,8 @@ data class SatSlot(
 /** One satellite day (12 two-hour slots) */
 data class SatDay(
     val dateLabel: String,   // "Aug 4"
-    val slots: List<SatSlot> // 12 槽(00-02 ... 22-24)
+    val slots: List<SatSlot>, // 12 槽(00-02 ... 22-24)
+    val streakCount: Int = 0 // 当天最近连续相同状态报告数(0 = 当天无报告)
 )
 
 /** One satellite, 3 days of state */
diff --git a/feature/status/src/main/java/com/rtbishop/look4sat/feature/status/SatStatusScreen.kt b/feature/status/src/main/java/com/rtbishop/look4sat/feature/status/SatStatusScreen.kt
index 7a59be99..cd599a3b 100644
--- a/feature/status/src/main/java/com/rtbishop/look4sat/feature/status/SatStatusScreen.kt
+++ b/feature/status/src/main/java/com/rtbishop/look4sat/feature/status/SatStatusScreen.kt
@@ -338,15 +338,16 @@ private fun StatusRow(status: SatStatus, onClickDay: (SatDay) -> Unit) {
 
 /**
  * Day block: colored by the newest reported status among the day's 12 slots
- * (gray when none); the number is the TOTAL report count of the whole day
- * (sum over all slots), not the count of the newest slot alone.
+ * (gray when none); the number is the count of the most recent consecutive
+ * reports sharing that same status (day.streakCount), not the total report
+ * count of the whole day.
  */
 @Composable
 private fun DayCell(day: SatDay, modifier: Modifier, onClick: () -> Unit) {
     val noReportGray = 0xFFC0C0C0L
     val slot = day.slots.firstOrNull { it.statusColor != noReportGray } ?: day.slots.first()
     val color = Color(slot.statusColor)
-    val totalCount = day.slots.sumOf { it.count }
+    val streakCount = day.streakCount
     Box(
         modifier = modifier
             .height(28.dp)
@@ -355,8 +356,8 @@ private fun DayCell(day: SatDay, modifier: Modifier, onClick: () -> Unit) {
             .clickable(onClick = onClick),
         contentAlignment = Alignment.Center
     ) {
-        if (totalCount > 0) {
-            Text(text = totalCount.toString(), fontSize = 13.sp, fontWeight = FontWeight.Bold, color = Color.White)
+        if (streakCount > 0) {
+            Text(text = streakCount.toString(), fontSize = 13.sp, fontWeight = FontWeight.Bold, color = Color.White)
         }
     }
 }
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index ffce4874..b13bdeb9 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -79,6 +79,8 @@ other-osmdroid = { module = "org.osmdroid:osmdroid-android", version.ref = "othe
 
 test-coroutines = { module = "org.jetbrains.kotlinx:kotlinx-coroutines-test", version.ref = "kotlin-coroutines" }
 test-junit4 = { module = "junit:junit", version.ref = "test-junit4" }
+# Real org.json for unit tests (android.jar stub throws "not mocked")
+test-json = { module = "org.json:json", version = "20240303" }
 
 androidTest-junit = { module = "androidx.test.ext:junit", version.ref = "androidTest-junit" }
 androidTest-espresso = { module = "androidx.test.espresso:espresso-core", version.ref = "androidTest-espresso" }