fix(today)：图标展示修改

@@ -533,10 +533,11 @@ class _HrvLineChartState extends State<_HrvLineChart> {
   Widget build(BuildContext context) {
     return LineChart(
       LineChartData(
+        clipData: const FlClipData.none(),
         minX: 0,
         maxX: widget.maxSeconds,
         minY: 0,
-        maxY: 80,
+        maxY: 100,
         gridData: FlGridData(
           show: true,
           drawVerticalLine: true,
@@ -624,7 +625,7 @@ class _HrvLineChartState extends State<_HrvLineChart> {
               ],
         lineTouchData: LineTouchData(
           getTouchLineStart: (barData, spotIndex) => 0,
-          getTouchLineEnd: (barData, spotIndex) => 90,
+          getTouchLineEnd: (barData, spotIndex) => 100,
           handleBuiltInTouches: false,
           touchSpotThreshold: 20.0,
           touchCallback:
@@ -685,7 +686,7 @@ class _HrvLineChartState extends State<_HrvLineChart> {
           touchTooltipData: LineTouchTooltipData(
             tooltipRoundedRadius: 8,
             showOnTopOfTheChartBoxArea: true,
-            tooltipMargin: 6,
+            tooltipMargin: 0,
             tooltipBorder: BorderSide.none,
             maxContentWidth: 400,
             fitInsideHorizontally: true,
@@ -903,20 +904,23 @@ class _StressBarChartState extends State<_StressBarChart> {
         // 自定义指示线 (只在 Stack 层手绘一条垂直灰色指示线，与柱子对齐，高度到达顶部以与 tooltip 连上)
         Positioned? customIndicator;
         if (_stressTouchedGroupIndex != null) {
-          final stepWidth = barWidth + groupsSpace;
-          final centerOfBar =
-              _stressTouchedGroupIndex! * stepWidth + (barWidth / 2);
-          customIndicator = Positioned(
-            left: centerOfBar - 1.0, // 2px 宽度，居中
-            width: 2.0,
-            top: 16.0, // 向上延展以连接 tooltip 底部
-            bottom: chartHeight - gridBottom, // 修正：bottom 指的是距离 Stack 底部的像素值
-            child: IgnorePointer(
-              child: ColoredBox(
-                color: context.colors.textTertiary.withAlpha(125),
+          final touchedSec = _stressTouchedGroupIndex! * slotSec;
+          if (slotStateMap.containsKey(touchedSec)) {
+            final stepWidth = barWidth + groupsSpace;
+            final centerOfBar =
+                _stressTouchedGroupIndex! * stepWidth + (barWidth / 2);
+            customIndicator = Positioned(
+              left: centerOfBar - 1.0, // 2px 宽度，居中
+              width: 2.0,
+              top: 12.0, // 向上延展以连接 tooltip 底部
+              bottom: chartHeight - gridBottom, // 修正：bottom 指的是距离 Stack 底部的像素值
+              child: IgnorePointer(
+                child: ColoredBox(
+                  color: context.colors.textTertiary.withAlpha(125),
+                ),
               ),
-            ),
-          );
+            );
+          }
         }
 
         return Stack(