线条透明度

app/components/chat.module.scss

@@ -514,7 +514,8 @@
   padding-top: 10px;
   box-sizing: border-box;
   flex-direction: column;
-  border-top: var(--border-in-light);
+  // 下方线条
+  border-top: 1px solid rgba(255, 255, 255, 0.5);
   box-shadow: var(--card-shadow);
 
   .chat-input-actions {

app/styles/window.scss

@@ -1,6 +1,7 @@
 .window-header {
   padding: 14px 20px;
-  border-bottom: var(--border-in-light);
+  // 上方线条
+  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
   position: relative;
 
   display: flex;