diff --git a/app/Http/Controllers/Admin/CompanyController.php b/app/Http/Controllers/Admin/CompanyController.php
index 72f7ad4..0475515 100644
--- a/app/Http/Controllers/Admin/CompanyController.php
+++ b/app/Http/Controllers/Admin/CompanyController.php
@@ -299,9 +299,16 @@ class CompanyController extends BaseController
             }
 
             // 当前周期被投企业数（与 courses-home 的 course_signs_invested_current 口径一致）
-            // 当 start_year、end_year 均为空时，不按课程日期过滤，与 courses-home 的 start_date=、end_date= 全周期一致
-            $yearStart = (empty($start_year) && empty($end_year)) ? null : $start_date;
-            $yearEnd = (empty($start_year) && empty($end_year)) ? null : $end_date;
+            // 优先 start_year/end_year；均为空时若有 course_start_date、course_end_date 则用其对齐 courses-home 的 start_date/end_date；否则 (null,null) 全周期
+            $yearStart = null;
+            $yearEnd = null;
+            if (!empty($start_year) || !empty($end_year)) {
+                $yearStart = $start_date;
+                $yearEnd = $end_date;
+            } elseif (!empty($all['course_start_date']) && !empty($all['course_end_date'])) {
+                $yearStart = $all['course_start_date'];
+                $yearEnd = $all['course_end_date'];
+            }
             $yearInvestedCompanies = CourseSign::yhInvestedTotal($yearStart, $yearEnd, $course_ids, true);
             if ($yearInvestedCompanies) {
                 $yearInvestedCompaniesCollection = collect($yearInvestedCompanies);