修复手机键盘弹出时页面位移与焦点跳转

templates/index.html

@@ -2,7 +2,7 @@
 <html lang="zh-CN">
 <head>
     <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover, interactive-widget=resizes-content">
     <meta name="theme-color" content="#315fd5">
     <title>柏悦智能物流客服系统</title>
     <link rel="icon" href="{{ url_for('static', filename='fa.jpg') }}">
@@ -61,7 +61,7 @@
                 <button type="button" id="upload-btn" title="发送附件" aria-label="发送附件">＋</button>
                 <div class="emoji-control"><button id="emoji-toggle" class="icon-button" type="button" aria-label="选择表情" aria-expanded="false" aria-controls="emoji-panel">😊</button><div id="emoji-panel" class="emoji-picker" hidden></div></div>
                 <input type="file" id="upload-input" accept="image/*,.pdf,.txt,.csv" hidden>
-                <textarea id="input-text" rows="1" aria-label="输入问题或运单号" placeholder="输入您的问题或运单号…"></textarea>
+                <textarea id="input-text" rows="1" enterkeyhint="send" aria-label="输入问题或运单号" placeholder="输入您的问题或运单号…"></textarea>
                 <button id="voice-hold" class="voice-hold" type="button">按住说话</button>
                 <button type="button" id="send-button">发送</button>
             </div>