diff --git a/app/routes/admin.py b/app/routes/admin.py
index c4375c9..3679185 100644
--- a/app/routes/admin.py
+++ b/app/routes/admin.py
@@ -458,6 +458,7 @@ def statistics():
     """统计报表"""
     from sqlalchemy import desc, func, case, or_, and_
     from datetime import datetime, timedelta
+    from collections import OrderedDict
 
     # 获取筛选参数
     search = request.args.get('search', '').strip()
@@ -537,26 +538,33 @@ def statistics():
     # 获取学生统计数据
     students_stats = base_query.all()
 
-    # 年级映射函数
-    def get_grade_label(grade, degree_type):
+    # 年级映射函数和排序权重
+    def get_grade_info(grade, degree_type):
+        """返回年级标签和排序权重"""
         if degree_type in ['学博', '专博']:
-            return f'博士{grade}年级'
+            # 博士：权重为0-99，年级越高权重越小（优先显示）
+            label = f'博士{grade}年级'
+            sort_weight = 10 - grade  # 博士4年级权重6，博士3年级权重7，以此类推
         else:
+            # 硕士：权重为100-199，年级越高权重越小
             if grade == 1:
-                return '研一'
+                label = '研一'
             elif grade == 2:
-                return '研二'
+                label = '研二'
             elif grade == 3:
-                return '研三'
+                label = '研三'
             else:
-                return f'研{grade}'
+                label = f'研{grade}'
+            sort_weight = 110 - grade  # 研三权重107，研二权重108，研一权重109
 
-    # 处理学生数据并按年级分组
-    grade_groups = {}
+        return label, sort_weight
+
+    # 处理学生数据并收集到临时字典
+    temp_grade_groups = {}
     all_students_data = []
 
     for stat in students_stats:
-        grade_label = get_grade_label(stat.grade, stat.degree_type)
+        grade_label, sort_weight = get_grade_info(stat.grade, stat.degree_type)
 
         student_data = {
             'student_number': stat.student_number,
@@ -579,13 +587,24 @@ def statistics():
 
         all_students_data.append(student_data)
 
-        if grade_label not in grade_groups:
-            grade_groups[grade_label] = []
-        grade_groups[grade_label].append(student_data)
+        if grade_label not in temp_grade_groups:
+            temp_grade_groups[grade_label] = {
+                'students': [],
+                'sort_weight': sort_weight
+            }
+        temp_grade_groups[grade_label]['students'].append(student_data)
 
     # 按出勤时长排序每个年级的学生
-    for grade in grade_groups:
-        grade_groups[grade].sort(key=lambda x: x['total_work_hours'], reverse=True)
+    for grade in temp_grade_groups:
+        temp_grade_groups[grade]['students'].sort(key=lambda x: x['total_work_hours'], reverse=True)
+
+    # 🔥 按排序权重重新排序年级组，生成有序字典
+    sorted_grade_items = sorted(temp_grade_groups.items(), key=lambda x: x[1]['sort_weight'])
+
+    # 创建最终的有序年级组字典
+    grade_groups = OrderedDict()
+    for grade_label, grade_data in sorted_grade_items:
+        grade_groups[grade_label] = grade_data['students']
 
     # 总体统计
     overall_stats = {
@@ -690,6 +709,7 @@ def statistics():
     print("=== 调试信息 ===")
     print(f"月度统计数据: {monthly_stats}")
     print(f"学院统计数据: {college_stats}")
+    print(f"年级组排序: {list(grade_groups.keys())}")
     print("===============")
 
     return render_template('admin/statistics.html',
diff --git a/app/templates/admin/add_student.html b/app/templates/admin/add_student.html
index dbe68de..2a491e3 100644
--- a/app/templates/admin/add_student.html
+++ b/app/templates/admin/add_student.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}添加学生 - CHM考勤管理系统{% endblock %}
+{% block title %}添加学生 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid mt-4">
diff --git a/app/templates/admin/attendance_details.html b/app/templates/admin/attendance_details.html
index f2315d8..6a0f951 100644
--- a/app/templates/admin/attendance_details.html
+++ b/app/templates/admin/attendance_details.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}考勤详情 - CHM考勤管理系统{% endblock %}
+{% block title %}考勤详情 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid mt-4">
diff --git a/app/templates/admin/attendance_management.html b/app/templates/admin/attendance_management.html
index 939aa6e..ba99457 100644
--- a/app/templates/admin/attendance_management.html
+++ b/app/templates/admin/attendance_management.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}考勤管理 - CHM考勤管理系统{% endblock %}
+{% block title %}考勤管理 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid mt-4">
diff --git a/app/templates/admin/dashboard.html b/app/templates/admin/dashboard.html
index afaccd6..a43f6d5 100644
--- a/app/templates/admin/dashboard.html
+++ b/app/templates/admin/dashboard.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}管理员控制台 - CHM考勤管理系统{% endblock %}
+{% block title %}管理员控制台 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid mt-4">
diff --git a/app/templates/admin/edit_student.html b/app/templates/admin/edit_student.html
index f016498..380bea6 100644
--- a/app/templates/admin/edit_student.html
+++ b/app/templates/admin/edit_student.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}编辑学生 - {{ student.name }} - CHM考勤管理系统{% endblock %}
+{% block title %}编辑学生 - {{ student.name }} - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid mt-4">
diff --git a/app/templates/admin/statistics.html b/app/templates/admin/statistics.html
index d36b587..f657e26 100644
--- a/app/templates/admin/statistics.html
+++ b/app/templates/admin/statistics.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}统计报表 - CHM考勤管理系统{% endblock %}
+{% block title %}统计报表 - SmartDSP考勤管理系统{% endblock %}
 
 {% block extra_css %}
 <style>
diff --git a/app/templates/admin/student_detail.html b/app/templates/admin/student_detail.html
index 38df0db..7d29eb0 100644
--- a/app/templates/admin/student_detail.html
+++ b/app/templates/admin/student_detail.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}学生详情 - {{ student.name }} - CHM考勤管理系统{% endblock %}
+{% block title %}学生详情 - {{ student.name }} - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid mt-4">
diff --git a/app/templates/admin/student_list.html b/app/templates/admin/student_list.html
index c79f878..e30e6a4 100644
--- a/app/templates/admin/student_list.html
+++ b/app/templates/admin/student_list.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}学生管理 - CHM考勤管理系统{% endblock %}
+{% block title %}学生管理 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid mt-4">
diff --git a/app/templates/admin/upload_attendance.html b/app/templates/admin/upload_attendance.html
index d02dc77..fc36758 100644
--- a/app/templates/admin/upload_attendance.html
+++ b/app/templates/admin/upload_attendance.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}上传考勤数据 - CHM考勤管理系统{% endblock %}
+{% block title %}上传考勤数据 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container mt-4">
diff --git a/app/templates/auth/admin_profile.html b/app/templates/auth/admin_profile.html
index 408cca2..7f11217 100644
--- a/app/templates/auth/admin_profile.html
+++ b/app/templates/auth/admin_profile.html
@@ -1,6 +1,6 @@
 {% extends "layout/base.html" %}
 
-{% block title %}个人信息 - CHM考勤管理系统{% endblock %}
+{% block title %}个人信息 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid py-4">
diff --git a/app/templates/auth/change_password.html b/app/templates/auth/change_password.html
index 3e9655b..f527a00 100644
--- a/app/templates/auth/change_password.html
+++ b/app/templates/auth/change_password.html
@@ -1,6 +1,6 @@
 {% extends "layout/base.html" %}
 
-{% block title %}修改密码 - CHM考勤管理系统{% endblock %}
+{% block title %}修改密码 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid py-4">
diff --git a/app/templates/auth/login.html b/app/templates/auth/login.html
index a461e44..e2d1aac 100644
--- a/app/templates/auth/login.html
+++ b/app/templates/auth/login.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}登录 - CHM考勤管理系统{% endblock %}
+{% block title %}登录 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="min-vh-100 d-flex align-items-center bg-light">
@@ -14,7 +14,7 @@
                             <div class="mb-3">
                                 <i class="fas fa-clock fa-4x text-primary"></i>
                             </div>
-                            <h2 class="fw-bold mb-2">CHM考勤系统</h2>
+                            <h2 class="fw-bold mb-2">SmartDSP考勤系统</h2>
                             <p class="text-muted">请使用学号和密码登录</p>
                         </div>
 
diff --git a/app/templates/auth/student_profile.html b/app/templates/auth/student_profile.html
index 9e44c75..5897b25 100644
--- a/app/templates/auth/student_profile.html
+++ b/app/templates/auth/student_profile.html
@@ -1,6 +1,6 @@
 {% extends "layout/base.html" %}
 
-{% block title %}个人信息 - CHM考勤管理系统{% endblock %}
+{% block title %}个人信息 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid py-4">
diff --git a/app/templates/layout/base.html b/app/templates/layout/base.html
index e088624..f968921 100644
--- a/app/templates/layout/base.html
+++ b/app/templates/layout/base.html
@@ -45,7 +45,7 @@
     {% if current_user.is_authenticated %}
     <footer class="bg-light text-center py-3 mt-auto">
         <div class="container">
-            <span class="text-muted">&copy; 2025 CHM考勤管理系统. All rights reserved.</span>
+            <span class="text-muted">&copy; 2025 SmartDSP考勤管理系统. All rights reserved.</span>
         </div>
     </footer>
     {% endif %}
diff --git a/app/templates/student/apply_leave.html b/app/templates/student/apply_leave.html
deleted file mode 100644
index e69de29..0000000
diff --git a/app/templates/student/attendance.html b/app/templates/student/attendance.html
index 5e400ca..77a4c19 100644
--- a/app/templates/student/attendance.html
+++ b/app/templates/student/attendance.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}我的考勤 - CHM考勤管理系统{% endblock %}
+{% block title %}我的考勤 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid mt-4">
diff --git a/app/templates/student/attendance_details.html b/app/templates/student/attendance_details.html
index b7778c5..3cc1456 100644
--- a/app/templates/student/attendance_details.html
+++ b/app/templates/student/attendance_details.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}考勤详情 - CHM考勤管理系统{% endblock %}
+{% block title %}考勤详情 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid mt-4">
diff --git a/app/templates/student/dashboard.html b/app/templates/student/dashboard.html
index 0fcd27e..dd17fc1 100644
--- a/app/templates/student/dashboard.html
+++ b/app/templates/student/dashboard.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}学生主页 - CHM考勤管理系统{% endblock %}
+{% block title %}学生主页 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid mt-4">
diff --git a/app/templates/student/leave_records.html b/app/templates/student/leave_records.html
deleted file mode 100644
index e69de29..0000000
diff --git a/app/templates/student/statistics.html b/app/templates/student/statistics.html
index 8af2736..b0aee22 100644
--- a/app/templates/student/statistics.html
+++ b/app/templates/student/statistics.html
@@ -1,6 +1,6 @@
 {% extends 'layout/base.html' %}
 
-{% block title %}个人统计 - CHM考勤管理系统{% endblock %}
+{% block title %}个人统计 - SmartDSP考勤管理系统{% endblock %}
 
 {% block content %}
 <div class="container-fluid mt-4">
diff --git a/run.py b/run.py
index 87b42af..571dc0f 100644
--- a/run.py
+++ b/run.py
@@ -3,4 +3,4 @@ import os
 app = create_app()
 if __name__ == '__main__':
     port = int(os.environ.get('PORT', 23944))
-    app.run(host='0.0.0.0', port=port, debug=True)
\ No newline at end of file
+    app.run(host='0.0.0.0', port=port)
\ No newline at end of file