优化iOS滚动处理，添加模态框触摸事件监听器

supply.html

@@ -478,6 +478,15 @@
             box-shadow: none;
             display: flex;
             flex-direction: column;
+            -webkit-overflow-scrolling: touch;
+            overscroll-behavior: contain;
+        }
+        
+        .modal-body {
+            flex: 1;
+            overflow-y: auto;
+            -webkit-overflow-scrolling: touch;
+            overscroll-behavior: contain;
         }
         
         .modal-header {
@@ -5791,6 +5800,31 @@
             // 防止iOS上的页面拖动
             preventiOSScrolling();
             
+            // 为模态框内容添加滚动处理
+            const modalContent = document.querySelector('#createSupplyModal .modal-content');
+            if (modalContent) {
+                // 确保模态框内容可以滚动
+                modalContent.style.overflowY = 'auto';
+                modalContent.style.webkitOverflowScrolling = 'touch';
+                
+                // 添加触摸事件监听器，允许模态框内的滚动
+                modalContent.addEventListener('touchstart', function(e) {
+                    this.allowUp = (this.scrollTop > 0);
+                    this.allowDown = (this.scrollTop < this.scrollHeight - this.clientHeight);
+                    this.prevTop = null;
+                    this.prevBottom = null;
+                }, { passive: true });
+                
+                modalContent.addEventListener('touchmove', function(e) {
+                    if ((this.allowUp && e.touches[0].pageY < e.changedTouches[0].pageY) || 
+                        (this.allowDown && e.touches[0].pageY > e.changedTouches[0].pageY)) {
+                        e.stopPropagation();
+                    } else {
+                        e.preventDefault();
+                    }
+                }, { passive: false });
+            }
+            
             // 重新加载联系人数据，确保最新
             loadContacts();