diff --git a/README.md b/README.md
index 091df4e..c0f5c25 100644
--- a/README.md
+++ b/README.md
@@ -163,8 +163,8 @@ const points: WaveformData = {
 const chartData: WaveformData = {
   kind: 'series',
   series: [
-    { id: 'ch-a', name: '通道 A', trackId: 'group-1', data: samples },
-    { id: 'ch-b', name: '通道 B', trackId: 'group-1', data: points },
+    { id: 'ch-a', shotNo: '13300', name: '通道 A', trackId: 'group-1', data: samples },
+    { id: 'ch-b', shotNo: '13300', name: '通道 B', trackId: 'group-1', data: points },
   ],
 }
 ```
@@ -281,6 +281,9 @@ X 轴且包含多个轨道时使用按稳定 track ID 索引的 `yRanges`。平
 多通道数据应为每个 `WaveformSeries` 提供稳定的 `id`。内部时间坐标始终使用秒，
 `timeUnit` 只控制坐标轴和 tooltip 的显示单位。
 
+Tooltip 每个系列按 `炮号：通道  (x:值 y:值)` 格式显示。`WaveformSeries.shotNo` 为空或未提供时，
+炮号显示为“未配置炮号”；Tooltip 不显示单位和误差附加文本。
+
 ### 线型、点型与误差棒
 
 每条序列可以独立设置连线方式、数据点符号和误差棒：
@@ -288,6 +291,7 @@ X 轴且包含多个轨道时使用按稳定 track ID 索引的 `yRanges`。平
 ```ts
 const series = {
   id: 'temperature',
+  shotNo: '13300',
   name: '温度',
   lineType: 'step-end',
   lineStyle: 'dashed',
diff --git a/package.json b/package.json
index 4684dd4..ab26692 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "waveform-analysis",
-  "version": "0.1.35",
+  "version": "0.1.36",
   "main": "./dist/index.cjs",
   "module": "./dist/index.js",
   "types": "./dist/types/index.d.ts",
diff --git a/src/components/core/types.ts b/src/components/core/types.ts
index e962798..6999b59 100644
--- a/src/components/core/types.ts
+++ b/src/components/core/types.ts
@@ -13,6 +13,7 @@ import type { NormalizedWaveformGridLineOptions } from './grid'
  */
 export interface DisplaySeries {
   id: string
+  shotNo?: string
   trackId?: string
   name: string
   unit?: string
@@ -63,6 +64,7 @@ export interface WaveformYAxisLayout {
  */
 export interface HoveredSeriesPoint {
   id: string
+  shotNo?: string
   name: string
   unit?: string
   color: string
diff --git a/src/components/interaction/WaveformTooltip.test.ts b/src/components/interaction/WaveformTooltip.test.ts
index 4dbf71c..ce6cccd 100644
--- a/src/components/interaction/WaveformTooltip.test.ts
+++ b/src/components/interaction/WaveformTooltip.test.ts
@@ -80,7 +80,7 @@ describe('WaveformTooltip', () => {
     expect(tooltip.attributes('style')).toContain('max-width: 280px')
   })
 
-  it('shows resolved asymmetric errors beside the hovered value', () => {
+  it('omits units and errors from the strict x/y value format', () => {
     const pointWithErrors = { x: 1, y: 12, error: 1, upperError: 2 }
     const wrapper = mount(WaveformTooltip, {
       props: {
@@ -102,10 +102,12 @@ describe('WaveformTooltip', () => {
       },
     })
 
-    expect(wrapper.get('.waveform-tooltip__series small').text()).toBe('(+2 / -1)')
+    expect(wrapper.get('.waveform-tooltip__value').text()).toBe('(x:1 y:12)')
+    expect(wrapper.get('.waveform-tooltip__value').text()).not.toContain('C')
+    expect(wrapper.get('.waveform-tooltip__value').text()).not.toContain('+2')
   })
 
-  it('keeps a formatted value and its unit in one value container', () => {
+  it('renders the configured shot number, channel, and formatted coordinates', () => {
     const hoveredPoint = { x: 1, y: -1405.4932 }
     const wrapper = mount(WaveformTooltip, {
       props: {
@@ -117,6 +119,7 @@ describe('WaveformTooltip', () => {
           {
             trackIndex: 0,
             name: 'ENG8KJXAc(10001)',
+            shotNo: '炮 7',
             color: '#ffb43b',
             unit: 'A',
             point: hoveredPoint,
@@ -127,26 +130,31 @@ describe('WaveformTooltip', () => {
       },
     })
 
-    expect(wrapper.get('.waveform-tooltip__value').text()).toBe('-1,405.4932 A')
+    expect(wrapper.get('.waveform-tooltip__series-label').text()).toBe('炮 7： ENG8KJXAc(10001)(A)')
+    expect(wrapper.get('.waveform-tooltip__value').text()).toBe('(x:1,000 y:-1,405.4932)')
   })
 
-  it('formats tooltip time with at most four decimal places', () => {
+  it('renders each series row with the formatted x coordinate and series label', () => {
     const wrapper = mount(WaveformTooltip, {
       props: {
         visible: true,
         position: { x: 10, y: 10 },
         timeUnit: 's',
         hoveredPoint: { x: 1.234567, y: 12 },
-        seriesPoints: [],
+        seriesPoints: [
+          { trackIndex: 0, name: '温度', color: '#f00', point: { x: 1.234567, y: 12 } },
+        ],
         containerWidth: 400,
         containerHeight: 300,
       },
     })
 
-    expect(wrapper.get('.waveform-tooltip__time').text()).toBe('s: 1.2346')
+    expect(wrapper.find('.waveform-tooltip__time').exists()).toBe(false)
+    expect(wrapper.get('.waveform-tooltip__series-label').text()).toBe('未配置炮号： 温度')
+    expect(wrapper.get('.waveform-tooltip__value').text()).toBe('(x:1.2346 y:12)')
   })
 
-  it('omits the error label when both resolved errors are zero', () => {
+  it('uses the fallback shot number when shotNo is blank', () => {
     const point = { x: 1, y: 12 }
     const wrapper = mount(WaveformTooltip, {
       props: {
@@ -160,6 +168,6 @@ describe('WaveformTooltip', () => {
       },
     })
 
-    expect(wrapper.find('.waveform-tooltip__series small').exists()).toBe(false)
+    expect(wrapper.get('.waveform-tooltip__series-label').text()).toBe('未配置炮号： 温度')
   })
 })
diff --git a/src/components/interaction/WaveformTooltip.vue b/src/components/interaction/WaveformTooltip.vue
index 9bd7a5f..8ae6e45 100644
--- a/src/components/interaction/WaveformTooltip.vue
+++ b/src/components/interaction/WaveformTooltip.vue
@@ -1,12 +1,12 @@
 <script setup lang="ts">
 import { computed } from 'vue'
-import { resolveWaveformPointErrors } from '../../core'
 import { formatTooltipNumber, formatTooltipTime } from '../../utils'
 import type { WaveformPoint } from '../data/types'
 
 interface SeriesPoint {
   trackIndex: number
   name: string
+  shotNo?: string
   color: string
   unit?: string
   point: WaveformPoint
@@ -34,7 +34,7 @@ const props = defineProps<Props>()
 const tooltipGap = 12
 const containerPadding = 8
 const tooltipPlacementWidth = 238
-const tooltipMaxWidth = 320
+const tooltipMaxWidth = 560
 const tooltipHorizontalPadding = 20
 const tooltipLineHeight = 20
 
@@ -45,18 +45,18 @@ function estimateLineCount(text: string, width: number): number {
 }
 
 function formatSeriesText(seriesPoint: SeriesPoint): string {
-  const error = formatError(seriesPoint.point)
-  return `${seriesPoint.name ? `${seriesPoint.name}: ` : ''}${formatTooltipNumber(seriesPoint.point.y)}${
-    seriesPoint.unit ? ` ${seriesPoint.unit}` : ''
-  }${error ? ` ${error}` : ''}`
+  const timeText = formatTooltipTime(props.hoveredPoint?.x ?? seriesPoint.point.x, props.timeUnit)
+  return `${seriesPoint.shotNo?.trim() || '未配置炮号'}： ${seriesPoint.name}${
+    seriesPoint.unit ? `(${seriesPoint.unit})` : ''
+  }  (x:${timeText} y:${formatTooltipNumber(seriesPoint.point.y)})`
 }
 
-function estimateTooltipHeight(width: number, timeText: string): number {
+function estimateTooltipHeight(width: number): number {
   const seriesLines = props.seriesPoints.reduce(
     (total, seriesPoint) => total + estimateLineCount(formatSeriesText(seriesPoint), width),
     0,
   )
-  return 16 + tooltipLineHeight * (estimateLineCount(timeText, width) + seriesLines) + 5
+  return 16 + tooltipLineHeight * seriesLines + 5
 }
 
 const tooltipStyle = computed(() => {
@@ -84,25 +84,18 @@ const tooltipStyle = computed(() => {
         : { left: `${containerPadding}px`, maxWidth: `${availableWidth}px` }
 
   const maxWidth = Number.parseFloat(horizontalStyle.maxWidth)
-  const timeText = `${props.timeUnit}: ${formatTooltipTime(props.hoveredPoint.x, props.timeUnit)}`
-
   return {
     ...horizontalStyle,
     top: `${Math.max(
       8,
       Math.min(
         props.position.y - 18,
-        props.containerHeight - estimateTooltipHeight(maxWidth, timeText) - 8,
+        props.containerHeight - estimateTooltipHeight(maxWidth) - 8,
       ),
     )}px`,
   }
 })
 
-function formatError(point: WaveformPoint): string | null {
-  const { lower, upper } = resolveWaveformPointErrors(point)
-  if (lower === 0 && upper === 0) return null
-  return `(+${formatTooltipNumber(upper)} / -${formatTooltipNumber(lower)})`
-}
 </script>
 
 <template>
@@ -111,9 +104,6 @@ function formatError(point: WaveformPoint): string | null {
     class="waveform-tooltip waveform-chart__tooltip"
     :style="tooltipStyle"
   >
-    <span class="waveform-tooltip__time waveform-chart__tooltip-time">
-      {{ timeUnit }}: {{ formatTooltipTime(hoveredPoint.x, timeUnit) }}
-    </span>
     <span
       v-for="seriesPoint in seriesPoints"
       :key="`${seriesPoint.trackIndex}-${seriesPoint.name}`"
@@ -121,12 +111,12 @@ function formatError(point: WaveformPoint): string | null {
     >
       <i :style="{ backgroundColor: seriesPoint.color }" />
       <span class="waveform-tooltip__series-content">
-        <strong v-if="seriesPoint.name">{{ seriesPoint.name }}:</strong>
-        <span class="waveform-tooltip__value">
-          {{ formatTooltipNumber(seriesPoint.point.y)
-          }}{{ seriesPoint.unit ? ` ${seriesPoint.unit}` : '' }}
-          <small v-if="formatError(seriesPoint.point)">{{ formatError(seriesPoint.point) }}</small>
-        </span>
+        <span class="waveform-tooltip__series-label">{{ seriesPoint.shotNo?.trim() || '未配置炮号' }}： {{
+          seriesPoint.name
+        }}<template v-if="seriesPoint.unit">({{ seriesPoint.unit }})</template></span>
+        <span class="waveform-tooltip__value">(x:{{ formatTooltipTime(hoveredPoint.x, timeUnit) }} y:{{
+          formatTooltipNumber(seriesPoint.point.y)
+        }})</span>
       </span>
     </span>
   </div>
@@ -138,26 +128,17 @@ function formatError(point: WaveformPoint): string | null {
   position: absolute;
   z-index: 2;
   display: grid;
-  gap: 3px;
+  gap: 2px;
   width: max-content;
-  max-width: min(320px, calc(100% - 16px));
-  padding: 8px 10px;
-  color: #333;
-  font:
-    12px/1.45 ui-monospace,
-    SFMono-Regular,
-    Consolas,
-    monospace;
+  max-width: min(560px, calc(100% - 16px));
+  padding: 9px 12px;
+  color: #505050;
+  font: 14px/1.35 Arial, sans-serif;
   pointer-events: none;
   background: #fff;
-  border: 1px solid #d9d9d9;
-  border-radius: 2px;
-  box-shadow: 0 4px 12px rgb(16 24 40 / 12%);
-}
-
-.waveform-tooltip__time {
-  padding-bottom: 4px;
-  border-bottom: 1px solid #f0f0f0;
+  border: 1px solid #e3e7eb;
+  border-radius: 4px;
+  box-shadow: 0 3px 10px rgb(16 24 40 / 15%);
 }
 
 .waveform-tooltip__series {
@@ -176,9 +157,24 @@ function formatError(point: WaveformPoint): string | null {
 }
 
 .waveform-tooltip__series-content {
+  display: flex;
+  flex-wrap: nowrap;
+  gap: 12px;
+  align-items: baseline;
   min-width: 0;
-  overflow-wrap: anywhere;
-  white-space: normal;
+}
+
+.waveform-tooltip__series-label {
+  flex: 1 1 auto;
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.waveform-tooltip__value {
+  flex: 0 0 auto;
+  white-space: nowrap;
 }
 
 .waveform-tooltip__series strong {
@@ -186,7 +182,7 @@ function formatError(point: WaveformPoint): string | null {
 }
 
 .waveform-tooltip__value {
-  overflow-wrap: anywhere;
+  color: #555;
 }
 
 .waveform-tooltip__series small {
diff --git a/src/components/interaction/useWaveformHover.ts b/src/components/interaction/useWaveformHover.ts
index 30324ff..8f5fa7a 100644
--- a/src/components/interaction/useWaveformHover.ts
+++ b/src/components/interaction/useWaveformHover.ts
@@ -85,6 +85,7 @@ export function useWaveformHover(context: HoverContext) {
     point: WaveformPoint,
   ): HoveredSeriesPoint => ({
     id: series.id,
+    shotNo: series.shotNo,
     name: series.name,
     color: series.color,
     unit: series.unit,
diff --git a/src/components/waveformChartCases/compactAndSharedHover.test.ts b/src/components/waveformChartCases/compactAndSharedHover.test.ts
index e664db4..b9aa836 100644
--- a/src/components/waveformChartCases/compactAndSharedHover.test.ts
+++ b/src/components/waveformChartCases/compactAndSharedHover.test.ts
@@ -179,10 +179,10 @@ describe('WaveformChart', () => {
     await flushPromises()
 
     const tooltip = wrapper.get('.waveform-chart__tooltip')
-    expect(tooltip.text()).toContain('BT2_2M:')
-    expect(tooltip.text()).toContain('2 T')
-    expect(tooltip.text()).toContain('BT1_2M:')
-    expect(tooltip.text()).toContain('4 T')
+    expect(tooltip.text()).toContain('未配置炮号： BT2_2M')
+    expect(tooltip.text()).toContain('(x:1,000 y:2)')
+    expect(tooltip.text()).toContain('未配置炮号： BT1_2M')
+    expect(tooltip.text()).toContain('(x:1,000 y:4)')
     const crosshairLines = wrapper.findAll('.waveform-chart__crosshair line')
     expect(crosshairLines).toHaveLength(2)
     crosshairLines.forEach((line) => {
diff --git a/src/components/waveformChartCases/dataAndHoverPerformance.test.ts b/src/components/waveformChartCases/dataAndHoverPerformance.test.ts
index a9767c6..5dc7bf5 100644
--- a/src/components/waveformChartCases/dataAndHoverPerformance.test.ts
+++ b/src/components/waveformChartCases/dataAndHoverPerformance.test.ts
@@ -178,7 +178,7 @@ describe('WaveformChart', () => {
     await flushPromises()
     expect(wrapper.emitted('point-hover')?.at(-1)).toEqual([{ x: 1, y: 5 }])
     expect(wrapper.find('.waveform-chart__tooltip').exists()).toBe(true)
-    expect(wrapper.get('.waveform-chart__tooltip-time').text()).toBe('ms: 1,000')
+    expect(wrapper.get('.waveform-tooltip__series-label').text()).toContain('未配置炮号：')
     const crosshairLines = wrapper.findAll('.waveform-chart__crosshair line')
     expect(crosshairLines).toHaveLength(1)
     expect(crosshairLines[0].attributes('x1')).toBe(crosshairLines[0].attributes('x2'))
@@ -303,7 +303,7 @@ describe('WaveformChart', () => {
     flushAnimationFrames()
     await flushPromises()
 
-    expect(wrapper.get('.waveform-chart__tooltip-time').text()).toBe('ms: 1,000')
+    expect(wrapper.get('.waveform-tooltip__series-label').text()).toContain('未配置炮号：')
     expect(wrapper.findAll('.waveform-chart__crosshair line')).toHaveLength(1)
     expect(wrapper.get('.waveform-chart__line').element).toBe(pathBeforeHover)
     expect(chartUpdate).not.toHaveBeenCalled()
diff --git a/src/core/data.test.ts b/src/core/data.test.ts
index 1374aad..b9637dd 100644
--- a/src/core/data.test.ts
+++ b/src/core/data.test.ts
@@ -102,4 +102,26 @@ describe('waveform data normalization', () => {
       'solid',
     ])
   })
+
+  it('preserves trimmed shot numbers and omits blank values', () => {
+    const result = normalizeWaveformSeries({
+      kind: 'series',
+      series: [
+        {
+          id: 'with-shot',
+          shotNo: '  13300  ',
+          name: '通道 A',
+          data: { kind: 'points', points: [{ x: 0, y: 1 }] },
+        },
+        {
+          id: 'without-shot',
+          shotNo: '   ',
+          name: '通道 B',
+          data: { kind: 'points', points: [{ x: 0, y: 2 }] },
+        },
+      ],
+    })
+
+    expect(result.map((series) => series.shotNo)).toEqual(['13300', undefined])
+  })
 })
diff --git a/src/core/data.ts b/src/core/data.ts
index 4b215ef..4acebed 100644
--- a/src/core/data.ts
+++ b/src/core/data.ts
@@ -132,6 +132,7 @@ export function normalizeWaveformSeries(data: WaveformData): NormalizedWaveformS
 
       return {
         id: uniqueId,
+        shotNo: series.shotNo?.trim() || undefined,
         trackId: series.trackId?.trim() || undefined,
         name: series.name,
         unit: series.unit,
diff --git a/src/data/simulatedWaveforms.test.ts b/src/data/simulatedWaveforms.test.ts
index 20b4b60..ee52a43 100644
--- a/src/data/simulatedWaveforms.test.ts
+++ b/src/data/simulatedWaveforms.test.ts
@@ -13,6 +13,7 @@ describe('simulated waveform data', () => {
 
     expect(first.series).toHaveLength(6)
     expect(new Set(first.series.map((series) => series.id)).size).toBe(6)
+    expect(new Set(first.series.map((series) => series.shotNo))).toEqual(new Set(['13300']))
     first.series.forEach((series) => {
       expect(series.data.kind).toBe('points')
       if (series.data.kind !== 'points') return
diff --git a/src/data/simulatedWaveforms.ts b/src/data/simulatedWaveforms.ts
index 0823b44..7b87451 100644
--- a/src/data/simulatedWaveforms.ts
+++ b/src/data/simulatedWaveforms.ts
@@ -13,7 +13,7 @@ type ErrorGenerator = (
 
 interface SimulatedSeriesDefinition extends Pick<
   WaveformSeries,
-  'id' | 'name' | 'unit' | 'lineType' | 'pointType' | 'errorBar'
+  'id' | 'shotNo' | 'name' | 'unit' | 'lineType' | 'pointType' | 'errorBar'
 > {
   signal: SignalGenerator
   errors?: ErrorGenerator
@@ -46,6 +46,7 @@ function createPoints(
 const seriesDefinitions: SimulatedSeriesDefinition[] = [
   {
     id: 'simulated-sine',
+    shotNo: '13300',
     name: '正弦基波',
     unit: 'V',
     lineType: 'none',
@@ -59,6 +60,7 @@ const seriesDefinitions: SimulatedSeriesDefinition[] = [
   },
   {
     id: 'simulated-harmonic',
+    shotNo: '13300',
     name: '谐波扰动',
     unit: 'V',
     lineType: 'linear',
@@ -68,6 +70,7 @@ const seriesDefinitions: SimulatedSeriesDefinition[] = [
   },
   {
     id: 'simulated-damped',
+    shotNo: '13300',
     name: '阻尼振荡',
     unit: 'A',
     lineType: 'linear',
@@ -79,6 +82,7 @@ const seriesDefinitions: SimulatedSeriesDefinition[] = [
   },
   {
     id: 'simulated-step',
+    shotNo: '13300',
     name: '阶跃响应',
     unit: 'V',
     lineType: 'linear',
@@ -87,6 +91,7 @@ const seriesDefinitions: SimulatedSeriesDefinition[] = [
   },
   {
     id: 'simulated-pulse',
+    shotNo: '13300',
     name: '脉冲响应',
     unit: 'V',
     lineType: 'linear',
@@ -95,6 +100,7 @@ const seriesDefinitions: SimulatedSeriesDefinition[] = [
   },
   {
     id: 'simulated-noise',
+    shotNo: '13300',
     name: '带噪信号',
     unit: 'A',
     lineType: 'linear',
diff --git a/src/types/data.ts b/src/types/data.ts
index 9ba824f..9248d52 100644
--- a/src/types/data.ts
+++ b/src/types/data.ts
@@ -47,6 +47,8 @@ export type SingleWaveformData =
  */
 export interface WaveformSeries {
   id?: string
+  /** 炮号，未提供时 Tooltip 显示“未配置炮号”。 */
+  shotNo?: string
   /** 相同 trackId 的系列叠加在同一图框中；默认每个系列独占一个图框。 */
   trackId?: string
   name: string
@@ -74,6 +76,7 @@ export type WaveformData =
  */
 export interface NormalizedWaveformSeries {
   id: string
+  shotNo?: string
   trackId?: string
   name: string
   unit?: string
diff --git a/src/views/FixedYDomainDemo.vue b/src/views/FixedYDomainDemo.vue
index bab19a2..e38b8ba 100644
--- a/src/views/FixedYDomainDemo.vue
+++ b/src/views/FixedYDomainDemo.vue
@@ -19,6 +19,7 @@ const chartData: WaveformData = {
   series: [
     {
       id: 'voltage',
+      shotNo: '13300',
       name: '电压',
       unit: 'V',
       color: '#1677ff',
@@ -33,6 +34,7 @@ const chartData: WaveformData = {
     },
     {
       id: 'current',
+      shotNo: '13300',
       name: '电流',
       unit: 'mA',
       color: '#d4380d',