diff --git a/frontend/src/pages/News.jsx b/frontend/src/pages/News.jsx
index aeba8e9..e448fe9 100644
--- a/frontend/src/pages/News.jsx
+++ b/frontend/src/pages/News.jsx
@@ -588,14 +588,14 @@ export default function News() {
                   return p === pkg && c === cat
                 })
                 if (items.length === 0) return null
-                // 按成交日期倒序排序
-                items.sort((a, b) => {
+                // 按成交日期倒序排序（创建新数组避免引用问题）
+                const sortedItems = [...items].sort((a, b) => {
                   const dateA = a.deal_date || a.created_at?.split('T')[0] || ''
                   const dateB = b.deal_date || b.created_at?.split('T')[0] || ''
                   return dateB.localeCompare(dateA)
                 })
-                const sum = items.reduce((a, b) => a + (b.deal_price || 0), 0)
-                return { avg: Math.round(sum / items.length), count: items.length, items }
+                const sum = sortedItems.reduce((a, b) => a + (b.deal_price || 0), 0)
+                return { avg: Math.round(sum / sortedItems.length), count: sortedItems.length, items: sortedItems }
               }
               
               return (
@@ -735,12 +735,12 @@ export default function News() {
                       style={{ background: 'none', border: 'none', color: '#94a3b8', fontSize: '20px', cursor: 'pointer' }}>✕</button>
                   </div>
                   <div style={{ display: 'flex', flexDirection: 'column', gap: '8px' }}>
-                    {/* 按成交日期倒序排序 */}
-                    {([...dealDetailItems].sort((a, b) => {
+                    {/* 按成交日期倒序排序（创建新数组确保排序生效） */}
+                    {[...dealDetailItems].sort((a, b) => {
                       const dateA = a.deal_date || a.created_at?.split('T')[0] || ''
                       const dateB = b.deal_date || b.created_at?.split('T')[0] || ''
                       return dateB.localeCompare(dateA)
-                    })).map((item, idx) => {
+                    }).map((item, idx) => {
                       const content = item.content || ''
                       const grade = content.includes('评级:') ? content.split('评级:')[1].split('\n')[0].trim() : (item.grading_score || '')
                       const sizeMatch = content.match(/大小号:\s*(.+?)(?:\n|$)/)