diff --git a/core/src/main/kotlin/plus/rua/project/CalendarViewModel.kt b/core/src/main/kotlin/plus/rua/project/CalendarViewModel.kt
index 05fb802..f6175a6 100644
--- a/core/src/main/kotlin/plus/rua/project/CalendarViewModel.kt
+++ b/core/src/main/kotlin/plus/rua/project/CalendarViewModel.kt
@@ -23,6 +23,28 @@ import plus.rua.project.ui.COLLAPSE_THRESHOLD
 import plus.rua.project.ui.FLING_VELOCITY_THRESHOLD_DP
 import kotlin.time.Clock
 
+// region 性能监控工具
+private fun perfLog(tag: String, msg: String) {
+    println("[PERF:${Thread.currentThread().name}] $tag | $msg")
+}
+
+private inline fun <T> perfMeasure(tag: String, block: () -> T): T {
+    val start = System.nanoTime()
+    val result = block()
+    val elapsedMs = (System.nanoTime() - start) / 1_000_000.0
+    perfLog(tag, "elapsed=${"%.3f".format(elapsedMs)}ms")
+    return result
+}
+
+private inline fun <T> perfMeasureResult(tag: String, block: () -> T): T {
+    val start = System.nanoTime()
+    val result = block()
+    val elapsedMs = (System.nanoTime() - start) / 1_000_000.0
+    perfLog(tag, "result=$result elapsed=${"%.3f".format(elapsedMs)}ms")
+    return result
+}
+// endregion
+
 /**
  * 日历日期数据，用于网格单元格渲染。
  *
@@ -113,36 +135,53 @@ class CalendarViewModel(
      * 当前视图被直接移除；动画只作用在目标视图的 scale/alpha 上。
      */
     fun toggleYearView() {
+        val direction = if (isYearView) "Year→Month" else "Month→Year"
+        perfLog("VM.toggleYearView", "START direction=$direction isCollapsed=$isCollapsed yearViewYear=$yearViewYear selectedDate=$selectedDate")
+        val toggleStart = System.nanoTime()
         yearViewJob?.cancel()
         yearViewJob = coroutineScope.launch {
             if (isYearView) {
-                // 年 → 月：先启动动画（年视图开始淡出），等一帧后翻转 isYearView（月视图开始组合）
                 composeTraceBeginSection("YearView→MonthView")
+                val snapStart = System.nanoTime()
                 _yearViewAnimatable.snapTo(1f)
+                perfLog("VM.toggleYearView", "snapTo(1f) elapsed=${(System.nanoTime() - snapStart) / 1_000_000.0}ms")
                 val animJob = launch {
+                    val animStart = System.nanoTime()
                     _yearViewAnimatable.animateTo(
                         0f, tween(400, easing = FastOutSlowInEasing)
                     )
+                    perfLog("VM.toggleYearView", "animateTo(0f) elapsed=${(System.nanoTime() - animStart) / 1_000_000.0}ms")
                 }
+                val frameStart = System.nanoTime()
                 withFrameNanos { }
+                perfLog("VM.toggleYearView", "withFrameNanos elapsed=${(System.nanoTime() - frameStart) / 1_000_000.0}ms")
+                val flipStart = System.nanoTime()
                 isYearView = false
-                animJob.join()
+                perfLog("VM.toggleYearView", "isYearView=false flip elapsed=${(System.nanoTime() - flipStart) / 1_000_000.0}ms")
                 composeTraceEndSection()
             } else {
-                // 月 → 年：直接切换，折叠态下周视图的 sharedElement 缩小到 MiniMonth 更自然
                 composeTraceBeginSection("MonthView→YearView")
+                val snapStart = System.nanoTime()
                 yearViewYear = selectedDate.year
                 _yearViewAnimatable.snapTo(0f)
+                perfLog("VM.toggleYearView", "snapTo(0f) + set yearViewYear=$yearViewYear elapsed=${(System.nanoTime() - snapStart) / 1_000_000.0}ms")
                 val animJob = launch {
+                    val animStart = System.nanoTime()
                     _yearViewAnimatable.animateTo(
                         1f, tween(400, easing = FastOutSlowInEasing)
                     )
+                    perfLog("VM.toggleYearView", "animateTo(1f) elapsed=${(System.nanoTime() - animStart) / 1_000_000.0}ms")
                 }
+                val frameStart = System.nanoTime()
                 withFrameNanos { }
+                perfLog("VM.toggleYearView", "withFrameNanos elapsed=${(System.nanoTime() - frameStart) / 1_000_000.0}ms")
+                val flipStart = System.nanoTime()
                 isYearView = true
-                animJob.join()
+                perfLog("VM.toggleYearView", "isYearView=true flip elapsed=${(System.nanoTime() - flipStart) / 1_000_000.0}ms")
                 composeTraceEndSection()
             }
+            val totalMs = (System.nanoTime() - toggleStart) / 1_000_000.0
+            perfLog("VM.toggleYearView", "END direction=$direction total=${"%.3f".format(totalMs)}ms")
         }
     }
 
@@ -151,18 +190,27 @@ class CalendarViewModel(
      */
     @Suppress("DEPRECATION") // monthNumber 无替代 API
     fun selectMonthFromYearView(month: Int) {
+        val totalStart = System.nanoTime()
+        perfLog("VM.selectMonthFromYearView", "START month=$month yearViewYear=$yearViewYear")
         composeTraceBeginSection("YearView:SelectMonth")
         val date = if (yearViewYear == today.year && today.month.number == month) today
         else LocalDate(yearViewYear, month, 1)
+        val dateSetStart = System.nanoTime()
         selectedDate = date
+        perfLog("VM.selectMonthFromYearView", "selectedDate=$selectedDate elapsed=${(System.nanoTime() - dateSetStart) / 1_000_000.0}ms")
+        val flipStart = System.nanoTime()
         isYearView = false
+        perfLog("VM.selectMonthFromYearView", "isYearView=false elapsed=${(System.nanoTime() - flipStart) / 1_000_000.0}ms")
         yearViewJob?.cancel()
         yearViewJob = coroutineScope.launch {
-            withFrameNanos { }
+            val animStart = System.nanoTime()
             _yearViewAnimatable.animateTo(
                 0f, tween(400, easing = FastOutSlowInEasing)
             )
+            perfLog("VM.selectMonthFromYearView", "animateTo(0f) elapsed=${(System.nanoTime() - animStart) / 1_000_000.0}ms")
             composeTraceEndSection()
+            val totalMs = (System.nanoTime() - totalStart) / 1_000_000.0
+            perfLog("VM.selectMonthFromYearView", "END total=${"%.3f".format(totalMs)}ms")
         }
     }
 
@@ -293,6 +341,7 @@ class CalendarViewModel(
      */
     @Suppress("DEPRECATION") // monthNumber 无替代 API，kotlinx-datetime 尚未提供新接口
     fun getMonthDays(year: Int, month: Int): List<CalendarDay> {
+        val start = System.nanoTime()
         composeTraceBeginSection("getMonthDays:$year-$month")
         val firstOfMonth = LocalDate(year, month, 1)
         val dayOfWeekOffset = firstOfMonth.dayOfWeek.ordinal
@@ -313,6 +362,8 @@ class CalendarViewModel(
             )
         }
         composeTraceEndSection()
+        val elapsedMs = (System.nanoTime() - start) / 1_000_000.0
+        perfLog("VM.getMonthDays", "$year-$month rows=$rows totalDays=$totalDays elapsed=${"%.3f".format(elapsedMs)}ms")
         return result
     }
 }
\ No newline at end of file
diff --git a/core/src/main/kotlin/plus/rua/project/ui/CalendarMonthPage.kt b/core/src/main/kotlin/plus/rua/project/ui/CalendarMonthPage.kt
index 2139735..9add5e7 100644
--- a/core/src/main/kotlin/plus/rua/project/ui/CalendarMonthPage.kt
+++ b/core/src/main/kotlin/plus/rua/project/ui/CalendarMonthPage.kt
@@ -8,7 +8,10 @@ import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clipToBounds
 import androidx.compose.ui.graphics.graphicsLayer
@@ -23,6 +26,12 @@ import kotlinx.datetime.number
 import kotlinx.datetime.plus
 import plus.rua.project.ShiftKind
 
+// region 性能监控工具
+private fun monthPagePerfLog(tag: String, msg: String) {
+    println("[MONTH-PAGE-PERF:${Thread.currentThread().name}] $tag | $msg")
+}
+// endregion
+
 /**
  * 月度日历网格页面，支持两阶段折叠动画。
  *
@@ -57,8 +66,15 @@ fun CalendarMonthPage(
     onRowHeightMeasured: ((Int) -> Unit)? = null,
     modifier: Modifier = Modifier
 ) {
+    val pageStart = System.nanoTime()
+    var recomposeCount by remember { mutableIntStateOf(0) }
+    recomposeCount++
     val days = remember(year, month) {
-        generateMonthDays(year, month)
+        val genStart = System.nanoTime()
+        val result = generateMonthDays(year, month)
+        val genMs = (System.nanoTime() - genStart) / 1_000_000.0
+        monthPagePerfLog("CalendarMonthPage", "generateMonthDays year=$year month=$month elapsed=${"%.3f".format(genMs)}ms")
+        result
     }
     val density = LocalDensity.current
 
@@ -66,6 +82,8 @@ fun CalendarMonthPage(
     val anchorIndex = remember(weeks, selectedDate) {
         weeks.indexOfFirst { week -> week.any { it.date == selectedDate } }
     }
+    val weekCount = weeks.size
+    monthPagePerfLog("CalendarMonthPage", "composition #$recomposeCount year=$year month=$month weeks=$weekCount collapseProgress=$collapseProgress anchorRow=$anchorIndex")
     val hasAnchor = anchorIndex >= 0
     val h = rowHeightPx.toFloat()
 
@@ -164,6 +182,8 @@ fun CalendarMonthPage(
             }
         }
     }
+    val totalMs = (System.nanoTime() - pageStart) / 1_000_000.0
+    monthPagePerfLog("CalendarMonthPage", "END year=$year month=$month elapsed=${"%.3f".format(totalMs)}ms")
 }
 
 private data class DayData(
diff --git a/core/src/main/kotlin/plus/rua/project/ui/CalendarMonthView.kt b/core/src/main/kotlin/plus/rua/project/ui/CalendarMonthView.kt
index 0fb492f..e15d8ec 100644
--- a/core/src/main/kotlin/plus/rua/project/ui/CalendarMonthView.kt
+++ b/core/src/main/kotlin/plus/rua/project/ui/CalendarMonthView.kt
@@ -77,6 +77,12 @@ import plus.rua.project.composeTraceEndSection
 import kotlin.math.abs
 import kotlin.time.Clock
 
+// region 性能监控工具
+private fun uiPerfLog(tag: String, msg: String) {
+    println("[UI-PERF:${Thread.currentThread().name}] $tag | $msg")
+}
+// endregion
+
 /**
  * 日历主界面，包含月/周视图切换、折叠动画和年视图共享元素转场。
  *
@@ -100,15 +106,6 @@ fun CalendarMonthView(
     val currentMonth by remember { derivedStateOf { viewModel.selectedDate.month.number } }
     val density = LocalDensity.current
 
-    // BottomCard 滑入动画：1f=完全隐藏（在下方），0f=完全显示
-    val bottomCardSlideProgress by animateFloatAsState(
-        targetValue = if (viewModel.isYearView) 1f else 0f,
-        animationSpec = tween(350, delayMillis = 100, easing = FastOutSlowInEasing),
-        label = "bottomCardSlide"
-    )
-
-    LocalDensity.current
-
     var rowHeightPx by remember { mutableIntStateOf(0) }
     var screenWidthPx by remember { mutableIntStateOf(0) }
     var isMenuExpanded by remember { mutableStateOf(false) }
@@ -117,6 +114,10 @@ fun CalendarMonthView(
         isMenuExpanded = false
     }
 
+    // 重组计数器
+    var recomposeCount by remember { mutableIntStateOf(0) }
+    recomposeCount++
+
     val pagerState = rememberPagerState(initialPage = START_PAGE, pageCount = { Int.MAX_VALUE })
 
     // 年视图分页器
@@ -157,21 +158,23 @@ fun CalendarMonthView(
         }
     }
 
-    SharedTransitionLayout {
-        val sharedScope = this
-        Box(
-            modifier = modifier
-                .fillMaxSize()
-                .background(MaterialTheme.colorScheme.background)
-                .statusBarsPadding()
-                .onSizeChanged { size ->
-                    screenWidthPx = size.width
-                }
-        ) {
+    uiPerfLog("CalendarMonthView", "composition #$recomposeCount isYearView=${viewModel.isYearView}")
+    Box(
+        modifier = modifier
+            .fillMaxSize()
+            .background(MaterialTheme.colorScheme.background)
+            .statusBarsPadding()
+            .onSizeChanged { size ->
+                screenWidthPx = size.width
+            }
+    ) {
+        SharedTransitionLayout {
+            val sharedScope = this
             AnimatedContent(
                 targetState = viewModel.isYearView,
                 label = "month_year_transition",
                 transitionSpec = {
+                    uiPerfLog("CalendarMonthView", "AnimatedContent transitionSpec target=$targetState initial=$initialState")
                     val enter = fadeIn(tween(300, easing = FastOutSlowInEasing)) +
                         slideInVertically(tween(300, easing = FastOutSlowInEasing)) { it / 6 }
                     val exit = fadeOut(tween(200, easing = FastOutSlowInEasing)) +
@@ -180,6 +183,8 @@ fun CalendarMonthView(
                 },
                 modifier = Modifier.fillMaxSize()
             ) { isYearView ->
+                val contentStart = System.nanoTime()
+                uiPerfLog("CalendarMonthView", "AnimatedContent content lambda START isYearView=$isYearView")
                 if (!isYearView) {
                     composeTraceBeginSection("MonthView:Compose")
                     val layoutReady = rowHeightPx > 0
@@ -232,16 +237,18 @@ fun CalendarMonthView(
                                 viewModel = viewModel,
                                 today = today,
                                 rowHeightPx = rowHeightPx,
-                                modifier = Modifier
-                                    .fillMaxWidth()
-                                    .offset(y = with(density) { (bottomCardSlideProgress * 200).dp })
-                                    .alpha(1f - bottomCardSlideProgress)
+                                isYearView = viewModel.isYearView,
+                                modifier = Modifier.fillMaxWidth()
                             )
                         }
                     }
+                    val monthViewMs = (System.nanoTime() - contentStart) / 1_000_000.0
+                    uiPerfLog("CalendarMonthView", "MonthView content lambda END elapsed=${"%.3f".format(monthViewMs)}ms")
                     composeTraceEndSection()
                 } else {
                     composeTraceBeginSection("YearView:Compose")
+                    val yearViewStart = System.nanoTime()
+                    uiPerfLog("CalendarMonthView", "YearView:Compose START")
                     Column(
                         modifier = Modifier
                             .fillMaxSize()
@@ -266,6 +273,7 @@ fun CalendarMonthView(
                                 .fillMaxWidth()
                                 .weight(1f)
                         ) { page ->
+                            val pageStart = System.nanoTime()
                             val pageOffset = abs(yearPagerState.currentPageOffsetFraction)
                             val isCurrentPage = page == yearPagerState.currentPage
                             val crossFadeAlpha = if (isCurrentPage) {
@@ -274,6 +282,7 @@ fun CalendarMonthView(
                                 pageOffset
                             }
                             val pageYear = viewModel.selectedDate.year + (page - START_PAGE)
+                            uiPerfLog("CalendarMonthView", "YearPager page=$page pageYear=$pageYear crossFadeAlpha=${"%.2f".format(crossFadeAlpha)} isCurrentPage=$isCurrentPage offset=${"%.3f".format(pageOffset)}")
                             YearGridView(
                                 year = pageYear,
                                 selectedMonth = if (pageYear == currentYear) currentMonth else 0,
@@ -295,12 +304,17 @@ fun CalendarMonthView(
                             )
                         }
                     }
+                    val yearViewMs = (System.nanoTime() - yearViewStart) / 1_000_000.0
+                    uiPerfLog("CalendarMonthView", "YearView:Compose END elapsed=${"%.3f".format(yearViewMs)}ms")
                     composeTraceEndSection()
                 }
+                val contentTotalMs = (System.nanoTime() - contentStart) / 1_000_000.0
+                uiPerfLog("CalendarMonthView", "AnimatedContent content lambda END total=${"%.3f".format(contentTotalMs)}ms")
             }
+        }
 
-            // FAB 浮动按钮
-        FloatingActionButton(
+        // FAB 浮动按钮
+    FloatingActionButton(
             onClick = { isMenuExpanded = !isMenuExpanded },
             modifier = Modifier
                 .align(Alignment.BottomStart)
@@ -385,7 +399,6 @@ fun CalendarMonthView(
         }
     }
 }
-}
 
 @Composable
 private fun MenuIcon(color: Color, modifier: Modifier = Modifier) {
@@ -415,6 +428,10 @@ private fun CalendarPagerArea(
     pagerState: PagerState,
     modifier: Modifier = Modifier
 ) {
+    val areaStart = System.nanoTime()
+    var areaRecomposeCount by remember { mutableIntStateOf(0) }
+    areaRecomposeCount++
+    uiPerfLog("CalendarPagerArea", "composition #$areaRecomposeCount collapseProgress=${viewModel.collapseProgress} page=${pagerState.currentPage} rowHeightPx=$rowHeightPx")
     val density = LocalDensity.current
     val collapseProgress = viewModel.collapseProgress
 
@@ -509,6 +526,8 @@ private fun CalendarPagerArea(
             modifier = pagerModifier
         )
     }
+    val areaTotalMs = (System.nanoTime() - areaStart) / 1_000_000.0
+    uiPerfLog("CalendarPagerArea", "END elapsed=${"%.3f".format(areaTotalMs)}ms")
 }
 
 @Composable
@@ -516,6 +535,7 @@ private fun BottomCardArea(
     viewModel: CalendarViewModel,
     today: LocalDate,
     rowHeightPx: Int,
+    isYearView: Boolean,
     modifier: Modifier = Modifier
 ) {
     val density = LocalDensity.current
@@ -526,12 +546,21 @@ private fun BottomCardArea(
         dragRangeMinPx
     }
 
+    val slideProgress by animateFloatAsState(
+        targetValue = if (isYearView) 1f else 0f,
+        animationSpec = tween(350, delayMillis = 100, easing = FastOutSlowInEasing),
+        label = "bottomCardSlide"
+    )
+
     BottomCard(
         viewModel = viewModel,
         selectedDate = viewModel.selectedDate,
         today = today,
         dragRangePx = dragRangePx,
-        modifier = modifier
+        modifier = modifier.graphicsLayer {
+            translationY = slideProgress * 200.dp.toPx()
+            alpha = 1f - slideProgress
+        }
     )
 }
 
diff --git a/core/src/main/kotlin/plus/rua/project/ui/CalendarPager.kt b/core/src/main/kotlin/plus/rua/project/ui/CalendarPager.kt
index ee9ef5a..3d6e270 100644
--- a/core/src/main/kotlin/plus/rua/project/ui/CalendarPager.kt
+++ b/core/src/main/kotlin/plus/rua/project/ui/CalendarPager.kt
@@ -5,8 +5,11 @@ import androidx.compose.foundation.pager.PagerDefaults
 import androidx.compose.foundation.pager.PagerState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
 import androidx.compose.runtime.snapshotFlow
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.alpha
@@ -17,6 +20,12 @@ import kotlinx.datetime.number
 import plus.rua.project.ShiftKind
 import kotlin.math.abs
 
+// region 性能监控工具
+private fun pagerPerfLog(tag: String, msg: String) {
+    println("[PAGER-PERF:${Thread.currentThread().name}] $tag | $msg")
+}
+// endregion
+
 /**
  * 月度日历分页器，HorizontalPager 实现无限左右滑动切换月份。
  *
@@ -51,6 +60,9 @@ fun CalendarPager(
     pagerState: PagerState,
     modifier: Modifier = Modifier
 ) {
+    var recomposeCount by remember { mutableIntStateOf(0) }
+    recomposeCount++
+    pagerPerfLog("CalendarPager", "composition #$recomposeCount selectedDate=$selectedDate collapseProgress=$collapseProgress")
     val initialYear = remember { today.year }
 
     @Suppress("DEPRECATION") // monthNumber 无替代 API，kotlinx-datetime 尚未提供新接口
@@ -71,6 +83,7 @@ fun CalendarPager(
         flingBehavior = PagerDefaults.flingBehavior(state = pagerState),
         modifier = modifier
     ) { page ->
+        val pageComposeStart = System.nanoTime()
         val pageOffset = abs(pagerState.currentPageOffsetFraction)
         val isCurrentPage = page == pagerState.currentPage
         val alpha = if (isCurrentPage) {
@@ -109,5 +122,7 @@ fun CalendarPager(
             onRowHeightMeasured = onRowHeightMeasured,
             modifier = Modifier.alpha(alpha)
         )
+        val pageComposeMs = (System.nanoTime() - pageComposeStart) / 1_000_000.0
+        pagerPerfLog("CalendarPager", "page=$page year=$year month=$month alpha=${"%.2f".format(alpha)} elapsed=${"%.3f".format(pageComposeMs)}ms")
     }
 }
\ No newline at end of file
diff --git a/core/src/main/kotlin/plus/rua/project/ui/WeekPager.kt b/core/src/main/kotlin/plus/rua/project/ui/WeekPager.kt
index d351cea..f396d6c 100644
--- a/core/src/main/kotlin/plus/rua/project/ui/WeekPager.kt
+++ b/core/src/main/kotlin/plus/rua/project/ui/WeekPager.kt
@@ -8,7 +8,10 @@ import androidx.compose.foundation.pager.PagerDefaults
 import androidx.compose.foundation.pager.rememberPagerState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.runtime.snapshotFlow
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.alpha
@@ -21,6 +24,12 @@ import kotlinx.datetime.plus
 import plus.rua.project.ShiftKind
 import kotlin.math.abs
 
+// region 性能监控工具
+private fun weekPerfLog(tag: String, msg: String) {
+    println("[WEEK-PERF:${Thread.currentThread().name}] $tag | $msg")
+}
+// endregion
+
 /**
  * 周视图分页器，折叠状态下显示选中日期所在周，支持左右滑动切换周。
  *
@@ -42,6 +51,9 @@ fun WeekPager(
     showLegalHoliday: Boolean,
     modifier: Modifier = Modifier
 ) {
+    var recomposeCount by remember { mutableIntStateOf(0) }
+    recomposeCount++
+    weekPerfLog("WeekPager", "composition #$recomposeCount selectedDate=$selectedDate")
     val initialWeekMonday = remember { selectedDate.toWeekMonday() }
     val pagerState = rememberPagerState(
         initialPage = START_PAGE,
@@ -70,6 +82,7 @@ fun WeekPager(
         flingBehavior = PagerDefaults.flingBehavior(state = pagerState),
         modifier = modifier
     ) { page ->
+        val pageStart = System.nanoTime()
         val pageOffset = abs(pagerState.currentPageOffsetFraction)
         val isCurrentPage = page == pagerState.currentPage
         val alpha = if (isCurrentPage) {
@@ -99,5 +112,7 @@ fun WeekPager(
                 )
             }
         }
+        val pageMs = (System.nanoTime() - pageStart) / 1_000_000.0
+        weekPerfLog("WeekPager", "page=$page weekMonday=$weekMonday elapsed=${"%.3f".format(pageMs)}ms")
     }
 }
\ No newline at end of file
diff --git a/core/src/main/kotlin/plus/rua/project/ui/YearGridView.kt b/core/src/main/kotlin/plus/rua/project/ui/YearGridView.kt
index 4023aca..d7f4ed2 100644
--- a/core/src/main/kotlin/plus/rua/project/ui/YearGridView.kt
+++ b/core/src/main/kotlin/plus/rua/project/ui/YearGridView.kt
@@ -25,7 +25,9 @@ import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableIntStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
@@ -50,6 +52,12 @@ import plus.rua.project.composeTraceEndSection
 
 private val WEEKDAY_LABELS = listOf("一", "二", "三", "四", "五", "六", "日")
 
+// region 性能监控工具
+private fun yearPerfLog(tag: String, msg: String) {
+    println("[YEAR-PERF:${Thread.currentThread().name}] $tag | $msg")
+}
+// endregion
+
 private data class MiniMonthColors(
     val titleSelected: Color,
     val titleNormal: Color,
@@ -82,6 +90,10 @@ fun YearGridView(
     animatedVisibilityScope: AnimatedVisibilityScope,
     modifier: Modifier = Modifier
 ) {
+    val yearGridStart = System.nanoTime()
+    var yearGridRecomposeCount by remember { mutableIntStateOf(0) }
+    yearGridRecomposeCount++
+    yearPerfLog("YearGridView", "composition #$yearGridRecomposeCount year=$year selectedMonth=$selectedMonth")
     composeTraceBeginSection("YearGridView:$year")
 
     // P0-F: 主题色在 YearGridView 级别一次性读取并缓存
@@ -196,6 +208,8 @@ fun YearGridView(
         }
     }
     composeTraceEndSection()
+    val yearGridTotalMs = (System.nanoTime() - yearGridStart) / 1_000_000.0
+    yearPerfLog("YearGridView", "END year=$year elapsed=${"%.3f".format(yearGridTotalMs)}ms")
 }
 
 /**
@@ -308,6 +322,7 @@ private data class MiniDayData(
 
 @Suppress("DEPRECATION") // monthNumber 无替代 API
 private fun generateMiniMonthDays(year: Int, month: Int): List<MiniDayData> {
+    val start = System.nanoTime()
     composeTraceBeginSection("generateMiniMonthDays:$year-$month")
     val firstOfMonth = LocalDate(year, month, 1)
     val offset = firstOfMonth.dayOfWeek.ordinal
@@ -325,6 +340,8 @@ private fun generateMiniMonthDays(year: Int, month: Int): List<MiniDayData> {
         )
     }
     composeTraceEndSection()
+    val elapsedMs = (System.nanoTime() - start) / 1_000_000.0
+    yearPerfLog("generateMiniMonthDays", "$year-$month rows=$rows totalDays=$totalDays elapsed=${"%.3f".format(elapsedMs)}ms")
     return result
 }