diff --git a/shared/src/commonMain/kotlin/plus/rua/project/ui/CalendarMonthView.kt b/shared/src/commonMain/kotlin/plus/rua/project/ui/CalendarMonthView.kt
index 986f352..ff8adfd 100644
--- a/shared/src/commonMain/kotlin/plus/rua/project/ui/CalendarMonthView.kt
+++ b/shared/src/commonMain/kotlin/plus/rua/project/ui/CalendarMonthView.kt
@@ -32,6 +32,7 @@ import plus.rua.project.CalendarViewModel
 
 private const val START_PAGE = Int.MAX_VALUE / 2
 private const val ROW_PADDING_DP = 4
+private const val HORIZONTAL_PADDING_DP = 16
 
 /**
  * 日历主界面，包含月/周视图切换和折叠动画。
@@ -89,8 +90,8 @@ fun CalendarMonthView(
     // 预估行高：DayCell aspectRatio=1，宽度 = (screenWidth - horizontalPadding) / 7
     // 加上 Row 的 vertical padding (4dp × 2)
     val estimatedRowHeightPx = if (screenWidthPx > 0) {
-        val cellWidth = (screenWidthPx - with(density) { 32.dp.toPx() }) / 7
-        val rowPadding = with(density) { 8.dp.toPx() }
+        val cellWidth = (screenWidthPx - with(density) { (HORIZONTAL_PADDING_DP * 2).dp.toPx() }) / 7
+        val rowPadding = with(density) { (ROW_PADDING_DP * 2).dp.toPx() }
         (cellWidth + rowPadding).toInt()
     } else 0
 
@@ -130,7 +131,7 @@ fun CalendarMonthView(
                 screenHeightPx = size.height
             }
     ) {
-        Column(modifier = Modifier.padding(horizontal = 16.dp)) {
+        Column(modifier = Modifier.padding(horizontal = HORIZONTAL_PADDING_DP.dp)) {
             MonthHeader(
                 year = currentYear,
                 month = currentMonth,
@@ -140,9 +141,9 @@ fun CalendarMonthView(
                 }
             )
             WeekdayHeader(
-                modifier = Modifier.fillMaxWidth().onSizeChanged { size ->
+                modifier = Modifier.fillMaxWidth().padding(bottom = ROW_PADDING_DP.dp).onSizeChanged { size ->
                     weekdayHeaderHeightPx = size.height
-                }.padding(bottom = ROW_PADDING_DP.dp)
+                }
             )
             // 完全折叠且无动画时显示 WeekPager，否则显示 CalendarPager（含下拉恢复过程）
             if (viewModel.isCollapsed && viewModel.collapseProgress >= 1f) {
diff --git a/shared/src/commonMain/kotlin/plus/rua/project/ui/MonthHeader.kt b/shared/src/commonMain/kotlin/plus/rua/project/ui/MonthHeader.kt
index 9efe528..dbe78bd 100644
--- a/shared/src/commonMain/kotlin/plus/rua/project/ui/MonthHeader.kt
+++ b/shared/src/commonMain/kotlin/plus/rua/project/ui/MonthHeader.kt
@@ -1,15 +1,16 @@
 package plus.rua.project.ui
 
 import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
 
 /**
  * 月份标题栏，显示"年月"文字和 ISO 周号。
@@ -36,10 +37,10 @@ fun MonthHeader(
             text = "${year}年${month}月",
             style = MaterialTheme.typography.titleLarge
         )
+        Spacer(modifier = Modifier.width(6.dp))
         Text(
-            text = " 第${weekNumber}周",
-            style = MaterialTheme.typography.bodySmall,
-            fontSize = 13.sp
+            text = "第${weekNumber}周",
+            style = MaterialTheme.typography.bodySmall
         )
     }
 }