diff --git a/furniture-3d-system/src/app/intake/new-product-management/NewProductManagementDashboard.tsx b/furniture-3d-system/src/app/intake/new-product-management/NewProductManagementDashboard.tsx
index f897b8f3..0e923d58 100644
--- a/furniture-3d-system/src/app/intake/new-product-management/NewProductManagementDashboard.tsx
+++ b/furniture-3d-system/src/app/intake/new-product-management/NewProductManagementDashboard.tsx
@@ -29,6 +29,7 @@ import {
   calculateProcurementActualDays,
   summarizeCompletedDepartmentTimings,
   type CompletedDepartmentTimingSummary,
+  type DepartmentTimingStageKey,
 } from "@/lib/new-product-department-timing";
 import type {
   OaBoardDashboardDTO,
@@ -112,6 +113,13 @@ type TimingDetailRow = {
   pricing: TimingStageValue;
 };
 
+type TimingHoverPreviewRow = {
+  openingCode: string;
+  productName: string;
+  stage?: string;
+  metric?: string;
+};
+
 type TimingOverview = {
   completedAverageDays: number;
   completedDepartments: CompletedDepartmentTimingSummary[];
@@ -157,6 +165,121 @@ type RunningTimingDetailFilter =
     }
   | null;
 
+const DEPARTMENT_TIMING_STAGES: Record<
+  CompletedDepartmentTimingSummary["key"],
+  Array<{ key: DepartmentTimingStageKey; label: string }>
+> = {
+  planning: [
+    { key: "requirementReview", label: "需求评审" },
+    { key: "pricing", label: "定价" },
+  ],
+  product: [
+    { key: "exterior", label: "外观" },
+    { key: "structure", label: "结构" },
+  ],
+  procurement: [{ key: "procurement", label: "采购链路" }],
+  visual: [{ key: "visual", label: "视觉" }],
+};
+
+function getDepartmentOvertimePreview(
+  row: TimingDetailRow,
+  departmentKey: CompletedDepartmentTimingSummary["key"],
+) {
+  const bottleneck = DEPARTMENT_TIMING_STAGES[departmentKey]
+    .map((stage) => ({ label: stage.label, value: row[stage.key] }))
+    .filter((stage) => (stage.value.overtime ?? 0) > 0)
+    .sort(
+      (left, right) =>
+        (right.value.overtime ?? 0) - (left.value.overtime ?? 0),
+    )[0];
+
+  return {
+    stage: bottleneck?.label ?? "部门链路",
+    metric: bottleneck ? `超 ${bottleneck.value.overtime} 天` : "已超时",
+    overtimeDays: bottleneck?.value.overtime ?? 0,
+  };
+}
+
+function getPrimaryOvertimePreview(row: TimingDetailRow) {
+  const bottleneck = Object.values(DEPARTMENT_TIMING_STAGES)
+    .flat()
+    .map((stage) => ({ label: stage.label, value: row[stage.key] }))
+    .filter((stage) => (stage.value.overtime ?? 0) > 0)
+    .sort(
+      (left, right) =>
+        (right.value.overtime ?? 0) - (left.value.overtime ?? 0),
+    )[0];
+
+  return {
+    stage: bottleneck?.label ?? "总周期",
+    metric: bottleneck ? `超 ${bottleneck.value.overtime} 天` : "已超时",
+  };
+}
+
+function buildDepartmentHoverPreviewRows(
+  rows: TimingDetailRow[],
+  department: CompletedDepartmentTimingSummary,
+): TimingHoverPreviewRow[] {
+  return department.overtimeRowIds
+    .flatMap((rowId) => {
+      const row = rows.find((candidate) => candidate.id === rowId);
+      if (!row) return [];
+      return [
+        {
+          row,
+          ...getDepartmentOvertimePreview(row, department.key),
+        },
+      ];
+    })
+    .sort((left, right) => right.overtimeDays - left.overtimeDays)
+    .slice(0, 3)
+    .map(({ row, stage, metric }) => ({
+      openingCode: row.openingCode,
+      productName: row.productName,
+      stage,
+      metric,
+    }));
+}
+
+function getDepartmentHoverConclusion(
+  department: CompletedDepartmentTimingSummary,
+) {
+  const primaryPart = [...department.overtimeParts].sort(
+    (left, right) => right.count - left.count,
+  )[0];
+  return primaryPart?.count
+    ? `主要卡点：${primaryPart.label} ${primaryPart.count} 款 · 统计范围：${department.definition}`
+    : `统计范围：${department.definition} · 暂无超时`;
+}
+
+function buildNearOvertimeHoverPreviewRows(
+  rows: TimingDetailRow[],
+  rowIds: string[],
+): TimingHoverPreviewRow[] {
+  return rowIds
+    .flatMap((rowId) => {
+      const row = rows.find((candidate) => candidate.id === rowId);
+      if (!row) return [];
+      return [
+        {
+          row,
+          remaining: Math.max(
+            0,
+            (row.standardDays ?? 0) - (row.totalActualDays ?? 0),
+          ),
+        },
+      ];
+    })
+    .sort((left, right) => left.remaining - right.remaining)
+    .slice(0, 3)
+    .map(({ row, remaining }) => ({
+      openingCode: row.openingCode,
+      productName: row.productName,
+      stage: "总周期",
+      metric: `剩 ${remaining} 天`,
+    }));
+}
+
 type BaseAnalysisDatum = (typeof ANALYSIS_DATA)[Exclude<
   AnalysisView,
   "overview"
@@ -1956,7 +2079,7 @@ function EfficiencyCard({
     tooltipTitle: string;
     tooltipDetail: string;
     tone: "good" | "danger";
-    previewRows?: Array<{ openingCode: string; productName: string }>;
+    previewRows?: TimingHoverPreviewRow[];
     actionLabel?: string;
     active?: boolean;
     onSelect?: () => void;
@@ -1965,6 +2088,7 @@ function EfficiencyCard({
     title: string;
     detail: string;
     lines?: string[];
+    previewRows?: TimingHoverPreviewRow[];
     actionLabel?: string;
   };
   active?: boolean;
@@ -2027,32 +2151,53 @@ function EfficiencyCard({
                   role="tooltip"
                   className={`pointer-events-none absolute bottom-[calc(100%+7px)] z-40 hidden w-[min(300px,calc(100vw-32px))] rounded-md border border-black/[0.08] bg-[#182225] px-3 py-2.5 text-left text-white shadow-[0_10px_28px_rgba(16,28,31,0.22)] group-hover/dept:block group-focus/dept:block ${tooltipAlignment}`}
                 >
-                  <span className="block text-[11px] font-semibold leading-4">
-                    {item.tooltipTitle}
+                  <span className="flex items-start justify-between gap-3">
+                    <span className="block text-[11px] font-semibold leading-4">
+                      {item.tooltipTitle}
+                    </span>
+                    {item.previewRows && item.previewRows.length > 1 ? (
+                      <span className="shrink-0 rounded bg-white/10 px-1.5 py-0.5 text-[9px] font-medium text-white/65">
+                        TOP 3
+                      </span>
+                    ) : null}
                   </span>
-                  <span className="mt-1 block text-[10px] font-normal leading-4 text-white/70">
+                  <span className="mt-1.5 block rounded bg-white/[0.06] px-2 py-1.5 text-[10px] font-normal leading-4 text-white/75">
                     {item.tooltipDetail}
                   </span>
                   {item.previewRows?.length ? (
                     <span className="mt-2 block border-t border-white/15 pt-1.5">
+                      <span className="grid grid-cols-[minmax(0,1fr)_58px_48px] gap-2 pb-1 text-[9px] text-white/40">
+                        <span>开款 / 产品</span>
+                        <span>主要卡点</span>
+                        <span className="text-right">时效</span>
+                      </span>
                       {item.previewRows.map((row) => (
                         <span
                           key={row.openingCode}
-                          className="flex items-center gap-2 py-0.5 text-[10px] leading-4"
+                          className="grid grid-cols-[minmax(0,1fr)_58px_48px] items-center gap-2 border-t border-white/[0.07] py-1.5 text-[10px] leading-4"
                         >
-                          <span className="shrink-0 font-semibold text-white">
-                            {row.openingCode}
+                          <span className="min-w-0">
+                            <span className="block truncate font-semibold text-white">
+                              {row.openingCode}
+                            </span>
+                            <span className="block truncate text-[9px] text-white/45">
+                              {row.productName}
+                            </span>
                           </span>
-                          <span className="min-w-0 truncate text-white/65">
-                            {row.productName}
+                          <span className="truncate text-white/65">
+                            {row.stage ?? "-"}
+                          </span>
+                          <span className="text-right font-semibold text-[#ffb5aa]">
+                            {row.metric ?? "-"}
                           </span>
                         </span>
                       ))}
                     </span>
                   ) : null}
                   {item.actionLabel ? (
-                    <span className="mt-1.5 block text-[10px] font-semibold text-[#8fd4c2]">
-                      {item.actionLabel}
+                    <span className="mt-2 flex items-center justify-between border-t border-white/15 pt-2 text-[10px] font-semibold text-[#8fd4c2]">
+                      <span>{item.actionLabel}</span>
+                      <ArrowUpRight className="h-3 w-3" />
                     </span>
                   ) : null}
                 </span>
@@ -2087,10 +2232,17 @@ function EfficiencyCard({
           role="tooltip"
           className="pointer-events-none absolute bottom-[calc(100%+8px)] right-0 z-50 hidden w-[min(320px,calc(100vw-32px))] rounded-md border border-black/[0.08] bg-[#182225] px-3 py-2.5 text-left text-white shadow-[0_10px_28px_rgba(16,28,31,0.22)] group-hover/card:block group-focus/card:block"
         >
-          <span className="block text-[11px] font-semibold leading-4">
-            {hoverDetail.title}
+          <span className="flex items-start justify-between gap-3">
+            <span className="block text-[11px] font-semibold leading-4">
+              {hoverDetail.title}
+            </span>
+            {hoverDetail.previewRows && hoverDetail.previewRows.length > 1 ? (
+              <span className="shrink-0 rounded bg-white/10 px-1.5 py-0.5 text-[9px] font-medium text-white/65">
+                TOP 3
+              </span>
+            ) : null}
           </span>
-          <span className="mt-1 block text-[10px] font-normal leading-4 text-white/70">
+          <span className="mt-1.5 block rounded bg-white/[0.06] px-2 py-1.5 text-[10px] font-normal leading-4 text-white/75">
             {hoverDetail.detail}
           </span>
           {hoverDetail.lines?.length ? (
@@ -2105,9 +2257,40 @@ function EfficiencyCard({
               ))}
             </span>
           ) : null}
+          {hoverDetail.previewRows?.length ? (
+            <span className="mt-2 block border-t border-white/15 pt-1.5">
+              <span className="grid grid-cols-[minmax(0,1fr)_58px_48px] gap-2 pb-1 text-[9px] text-white/40">
+                <span>开款 / 产品</span>
+                <span>当前环节</span>
+                <span className="text-right">时效</span>
+              </span>
+              {hoverDetail.previewRows.map((row) => (
+                <span
+                  key={`${row.openingCode}-${row.stage ?? ""}`}
+                  className="grid grid-cols-[minmax(0,1fr)_58px_48px] items-center gap-2 border-t border-white/[0.07] py-1.5 text-[10px] leading-4"
+                >
+                  <span className="min-w-0">
+                    <span className="block truncate font-semibold text-white">
+                      {row.openingCode}
+                    </span>
+                    <span className="block truncate text-[9px] text-white/45">
+                      {row.productName}
+                    </span>
+                  </span>
+                  <span className="truncate text-white/65">
+                    {row.stage ?? "-"}
+                  </span>
+                  <span className="text-right font-semibold text-[#ffcf87]">
+                    {row.metric ?? "-"}
+                  </span>
+                </span>
+              ))}
+            </span>
+          ) : null}
           {hoverDetail.actionLabel ? (
-            <span className="mt-1.5 block text-[10px] font-semibold text-[#8fd4c2]">
-              {hoverDetail.actionLabel}
+            <span className="mt-2 flex items-center justify-between border-t border-white/15 pt-2 text-[10px] font-semibold text-[#8fd4c2]">
+              <span>{hoverDetail.actionLabel}</span>
+              <ArrowUpRight className="h-3 w-3" />
             </span>
           ) : null}
         </span>
@@ -3400,10 +3583,8 @@ export default function NewProductManagementDashboard({
                     (department) => ({
                       label: department.label,
                       value: `${department.overtimeCount}个`,
-                      tooltipTitle: `${department.label}超时流程：${department.overtimeCount} 个`,
-                      tooltipDetail: `在 ${timingOverview.completedOvertimeCount} 个周期超期流程中，${department.overtimeParts
-                        .map((part) => `${part.label} ${part.count} 个`)
-                        .join("；")}；同一流程不重复计数`,
+                      tooltipTitle: `${department.label} · ${department.overtimeCount} 款超时`,
+                      tooltipDetail: getDepartmentHoverConclusion(department),
                       tone:
                         department.overtimeCount > 0
                           ? ("danger" as const)
@@ -3412,27 +3593,16 @@ export default function NewProductManagementDashboard({
                         timingDetailMode === "completed" &&
                         completedTimingFilter?.kind === "department" &&
                         completedTimingFilter.key === department.key,
-                      previewRows: department.overtimeRowIds
-                        .slice(0, 4)
-                        .flatMap((rowId) => {
-                          const row = timingDetails.completed.find(
-                            (candidate) => candidate.id === rowId,
-                          );
-                          return row
-                            ? [
-                                {
-                                  openingCode: row.openingCode,
-                                  productName: row.productName,
-                                },
-                              ]
-                            : [];
-                        }),
+                      previewRows: buildDepartmentHoverPreviewRows(
+                        timingDetails.completed,
+                        department,
+                      ),
                       actionLabel: department.overtimeCount
                         ? timingDetailMode === "completed" &&
                           completedTimingFilter?.kind === "department" &&
                           completedTimingFilter.key === department.key
                           ? "已展开，再次点击收起"
-                          : `点击查看全部 ${department.overtimeCount} 个流程`
+                          : `查看全部 ${department.overtimeCount} 款`
                         : undefined,
                       onSelect: department.overtimeCount
                         ? () => {
@@ -3496,11 +3666,19 @@ export default function NewProductManagementDashboard({
                     maxCompletedOvertimeRow &&
                     timingOverview.completedMaxOvertimeDays > 0
                       ? {
-                          title: `最大周期超期：${timingOverview.completedMaxOvertimeDays} 天`,
-                          detail: `${maxCompletedOvertimeRow.openingCode} · ${maxCompletedOvertimeRow.productName}`,
+                          title: `最大周期超期 · ${timingOverview.completedMaxOvertimeDays} 天`,
+                          detail: `最终用时 ${maxCompletedOvertimeRow.totalActualDays ?? "-"} 天 · 标准 ${maxCompletedOvertimeRow.standardDays ?? "-"} 天 · ${maxCompletedOvertimeRow.finishedDate || "完成日期待补充"}`,
                           lines: [
-                            `最终时效 ${maxCompletedOvertimeRow.totalActualDays ?? "-"} 天 / 标准 ${maxCompletedOvertimeRow.standardDays ?? "-"} 天`,
-                            `完成日期 ${maxCompletedOvertimeRow.finishedDate || "-"}`,
+                            "该款为当前已完成任务中周期超期最严重的一款",
+                          ],
+                          previewRows: [
+                            {
+                              openingCode: maxCompletedOvertimeRow.openingCode,
+                              productName: maxCompletedOvertimeRow.productName,
+                              ...getPrimaryOvertimePreview(
+                                maxCompletedOvertimeRow,
+                              ),
+                            },
                           ],
                           actionLabel:
                             timingDetailMode === "completed" &&
@@ -3600,10 +3778,8 @@ export default function NewProductManagementDashboard({
                     (department) => ({
                       label: department.label,
                       value: `${department.overtimeCount}个`,
-                      tooltipTitle: `${department.label}超时流程：${department.overtimeCount} 个`,
-                      tooltipDetail: `进行中流程中，${department.overtimeParts
-                        .map((part) => `${part.label} ${part.count} 个`)
-                        .join("；")}；同一流程不重复计数`,
+                      tooltipTitle: `${department.label} · ${department.overtimeCount} 款超时`,
+                      tooltipDetail: getDepartmentHoverConclusion(department),
                       tone:
                         department.overtimeCount > 0
                           ? ("danger" as const)
@@ -3612,27 +3788,16 @@ export default function NewProductManagementDashboard({
                         timingDetailMode === "running" &&
                         runningTimingFilter?.kind === "department" &&
                         runningTimingFilter.key === department.key,
-                      previewRows: department.overtimeRowIds
-                        .slice(0, 4)
-                        .flatMap((rowId) => {
-                          const row = timingDetails.running.find(
-                            (candidate) => candidate.id === rowId,
-                          );
-                          return row
-                            ? [
-                                {
-                                  openingCode: row.openingCode,
-                                  productName: row.productName,
-                                },
-                              ]
-                            : [];
-                        }),
+                      previewRows: buildDepartmentHoverPreviewRows(
+                        timingDetails.running,
+                        department,
+                      ),
                       actionLabel: department.overtimeCount
                         ? timingDetailMode === "running" &&
                           runningTimingFilter?.kind === "department" &&
                           runningTimingFilter.key === department.key
                           ? "已展开，再次点击收起"
-                          : `点击查看全部 ${department.overtimeCount} 个流程`
+                          : `查看全部 ${department.overtimeCount} 款`
                         : undefined,
                       onSelect: department.overtimeCount
                         ? () => {
@@ -3667,28 +3832,17 @@ export default function NewProductManagementDashboard({
                   hoverDetail={
                     timingOverview.runningNearOvertimeCount > 0
                       ? {
-                          title: `临近超期任务：${timingOverview.runningNearOvertimeCount} 个`,
-                          detail: `距该款总标准剩余 ${NEAR_OVERTIME_WINDOW_DAYS} 天内`,
-                          lines: timingOverview.runningNearOvertimeRowIds
-                            .slice(0, 4)
-                            .flatMap((rowId) => {
-                              const row = timingDetails.running.find(
-                                (candidate) => candidate.id === rowId,
-                              );
-                              if (!row) return [];
-                              const remaining =
-                                (row.standardDays ?? 0) -
-                                (row.totalActualDays ?? 0);
-                              return [
-                                `${row.openingCode} · ${row.productName}`,
-                                `已用 ${row.totalActualDays ?? "-"} 天，剩余 ${Math.max(0, remaining)} 天`,
-                              ];
-                            }),
+                          title: `临近超期 · ${timingOverview.runningNearOvertimeCount} 款`,
+                          detail: `按剩余时间由短到长排列 · 均在 ${NEAR_OVERTIME_WINDOW_DAYS} 天预警窗口内`,
+                          previewRows: buildNearOvertimeHoverPreviewRows(
+                            timingDetails.running,
+                            timingOverview.runningNearOvertimeRowIds,
+                          ),
                           actionLabel:
                             timingDetailMode === "running" &&
                             runningTimingFilter?.kind === "near-overtime"
                               ? "已展开，再次点击收起"
-                              : "点击查看临近超期明细",
+                              : `查看全部 ${timingOverview.runningNearOvertimeCount} 款`,
                         }
                       : undefined
                   }
@@ -3732,20 +3886,31 @@ export default function NewProductManagementDashboard({
                   hoverDetail={
                     timingOverview.runningLongestRowId
                       ? {
-                          title: `最长已用时：${timingOverview.runningLongestDays} 天`,
-                          detail: (() => {
+                          title: `最长已用时 · ${timingOverview.runningLongestDays} 天`,
+                          detail: `已用 ${timingOverview.runningLongestDays} 天 · 标准 ${timingOverview.runningLongestTargetDays ?? "-"} 天${timingOverview.runningLongestTargetDays !== null && timingOverview.runningLongestDays > timingOverview.runningLongestTargetDays ? ` · 已超 ${roundTimingValue(timingOverview.runningLongestDays - timingOverview.runningLongestTargetDays)} 天` : ""}`,
+                          previewRows: (() => {
                             const row = timingDetails.running.find(
                               (candidate) =>
                                 candidate.id ===
                                 timingOverview.runningLongestRowId,
                             );
                             return row
-                              ? `${row.openingCode} · ${row.productName}`
-                              : timingOverview.runningLongestTask;
+                              ? [
+                                  {
+                                    openingCode: row.openingCode,
+                                    productName: row.productName,
+                                    stage: "总周期",
+                                    metric:
+                                      timingOverview.runningLongestTargetDays !==
+                                        null &&
+                                      timingOverview.runningLongestDays >
+                                        timingOverview.runningLongestTargetDays
+                                        ? `超 ${roundTimingValue(timingOverview.runningLongestDays - timingOverview.runningLongestTargetDays)} 天`
+                                        : `已用 ${timingOverview.runningLongestDays} 天`,
+                                  },
+                                ]
+                              : [];
                           })(),
-                          lines: [
-                            `当前已用时 ${timingOverview.runningLongestDays} 天 / 标准 ${timingOverview.runningLongestTargetDays ?? "-"} 天`,
-                          ],
                           actionLabel:
                             timingDetailMode === "running" &&
                             runningTimingFilter?.kind === "longest"