diff --git a/main.py b/main.py
index d522ff7..873a190 100644
--- a/main.py
+++ b/main.py
@@ -796,7 +796,6 @@ async def update_score(judge_id: str, score_data: ScoreDetailUpdate):
             ON CONFLICT(judge_id, program_sn) DO UPDATE SET
                 {field_map[score_data.field]} = excluded.{field_map[score_data.field]},
                 updated_at = excluded.updated_at,
-                admin_total_score = NULL
         """,
             (judge_id, score_data.program_sn, val, datetime.now()),
         )
@@ -863,20 +862,10 @@ async def batch_update_scores(batch_data: ScoreBatchUpdate):
                     INSERT INTO scores (judge_id, program_sn, admin_total_score, updated_at)
                     VALUES (?, ?, ?, ?)
                     ON CONFLICT(judge_id, program_sn) DO UPDATE SET
-                        content_score = NULL,
-                        stage_score = NULL,
-                        art_score = NULL,
-                        overall_score = NULL,
                         admin_total_score = excluded.admin_total_score,
-                        comment = NULL,
                         updated_at = excluded.updated_at
                 """,
-                    (
-                        judge_id,
-                        batch_data.program_sn,
-                        total_score,
-                        datetime.now(),
-                    ),
+                    (judge_id, batch_data.program_sn, total_score, datetime.now()),
                 )
     return {'success': True}
 
@@ -974,8 +963,8 @@ async def get_aggregate(batch_id: int | None = Query(None)):
         for row in cursor.fetchall():
             stats[row['program_sn']] = {
                 'avg_score': row['avg_score'] if row['avg_score'] is not None else None,
-                'max_score': row['max_score'] or 0,
-                'min_score': row['min_score'] or 0,
+                'max_score': row['max_score'],
+                'min_score': row['min_score'],
                 'scored_count': row['scored_count'] or 0,
             }
 
@@ -1194,7 +1183,7 @@ def render_print_program_template(
     <table><thead><tr><th>评委姓名</th><th>总分(100分)</th><th>评委点评</th></tr></thead><tbody>"""
     for judge in judges:
         s = scores_data.get(judge['name'], {})
-        html += f"""<tr><td style="font-weight:bold;">{judge['name']}</td><td class="total">{s.get('total') if s.get('total', 0) > 0 else '-'}</td><td class="comment-cell">{s.get('comment', '')}</td></tr>"""
+        html += f"""<tr><td style="font-weight:bold;">{judge['name']}</td><td class="total">{s.get('total') if s.get('total') is not None else '-'}</td><td class="comment-cell">{s.get('comment', '')}</td></tr>"""
     html += f"""</tbody></table><div style="margin-top: 30px;"><p>评委组签名：____________________</p><p style="text-align: right;">日期：{datetime.now().strftime('%Y年%m月%d日')}</p></div>
     <div class="no-print" style="margin-top: 30px; text-align: center;"><button onclick="window.print()">🖨️ 打印本页</button> <button onclick="window.close()">关闭</button></div></div></body></html>"""
     return html
@@ -2034,8 +2023,8 @@ HTML_TEMPLATE = """
             row.insertCell(5).innerText = item.category;
             let avgDisplay = item.avg_score === null ? '-' : `<strong>${item.avg_score}</strong>`;
             row.insertCell(6).innerHTML = avgDisplay;
-            row.insertCell(7).innerText = item.max_score;
-            row.insertCell(8).innerText = item.min_score;
+            row.insertCell(7).innerText = item.max_score ?? '-';
+            row.insertCell(8).innerText = item.min_score ?? '-';
             row.insertCell(9).innerText = item.scored_count;
             const btnCell = row.insertCell(10);
             btnCell.className = 'col-operation';