feat: 消息列表的调整

pages/chat/styles/ChatMainList.scss

@@ -23,6 +23,8 @@
 			height: 100vh;
 			display: flex;
 			flex-direction: column;
+			flex: 1;
+  			min-height: 0;
 			
 			z-index: 1;
 			overflow: hidden; 
@@ -39,6 +41,7 @@
 			flex: 1;
 			overflow-y: auto;
 			min-height: 0;
+			height: 0;
 			padding: 4px 0 0;
 			overscroll-behavior: contain; /* 阻止滚动穿透 */
 			-webkit-overflow-scrolling: touch;
@@ -71,11 +74,6 @@
 		}
 	}
 	
-	.lastMsgId {
-		
-		
-	}
-	
 	.footer-area {
 		width: 100vw;
 		flex-shrink: 0;
@@ -84,6 +82,8 @@
 		touch-action: pan-x; /* 仅允许横向触摸滚动 */
 		overflow-x: auto; /* 允许横向滚动 */
 		overflow-y: hidden; /* 禁止垂直滚动 */
+		/* 确保高度能够正确计算 */
+		min-height: fit-content;
 	}
 	
 	.area-input {