diff --git a/src/pages/ChatPage.tsx b/src/pages/ChatPage.tsx
index e6baa89..6db8a78 100644
--- a/src/pages/ChatPage.tsx
+++ b/src/pages/ChatPage.tsx
@@ -632,8 +632,24 @@ export default function ChatPage() {
                 onChange={(e) => setInput(e.target.value)}
                 placeholder="问我任何问题..."
                 autoSize={{ minRows: 3, maxRows: 10 }}
-                onPressEnter={(e) => {
-                  if (!e.shiftKey) {
+                onKeyDown={(e) => {
+                  if (e.key !== 'Enter') return;
+                  if ((e as any).isComposing) return;
+
+                  if (e.metaKey || e.ctrlKey) {
+                    e.preventDefault();
+                    const el = e.currentTarget;
+                    const start = el.selectionStart ?? input.length;
+                    const end = el.selectionEnd ?? input.length;
+                    const next = input.slice(0, start) + '\n' + input.slice(end);
+                    setInput(next);
+                    requestAnimationFrame(() => {
+                      el.selectionStart = el.selectionEnd = start + 1;
+                    });
+                    return;
+                  }
+
+                  if (!e.shiftKey && !e.altKey) {
                     e.preventDefault();
                     handleSend();
                   }
@@ -655,6 +671,7 @@ export default function ChatPage() {
                   />
 
                   <Upload
+                    className="chat-upload"
                     multiple
                     beforeUpload={(_f, files) => {
                       handleAttach(files as File[]);
@@ -663,9 +680,14 @@ export default function ChatPage() {
                     showUploadList={false}
                     accept=".txt,.md,.markdown,.json,.csv,.pdf,.docx,.html,.htm,image/png,image/jpeg,image/webp,image/gif"
                   >
-                    <Button type="text" icon={<PaperClipOutlined style={{ fontSize: 18 }} />} />
+                    <Button type="text" className="chat-tool-button" icon={<PaperClipOutlined style={{ fontSize: 18 }} />} />
                   </Upload>
-                  <Button type="text" icon={<BookOutlined style={{ fontSize: 18 }} />} onClick={() => setTplDrawerOpen(true)} />
+                  <Button
+                    type="text"
+                    className="chat-tool-button"
+                    icon={<BookOutlined style={{ fontSize: 18 }} />}
+                    onClick={() => setTplDrawerOpen(true)}
+                  />
                 </div>
 
                 {sending ? (
diff --git a/src/styles.css b/src/styles.css
index 3d2b904..f753134 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -556,11 +556,6 @@ body {
   box-shadow: var(--shadow-sm);
 }
 
-.chat-input-card:focus-within {
-  border-color: var(--color-border-focus);
-  box-shadow: var(--shadow-focus);
-}
-
 .chat-input-stack {
   display: flex;
   flex-direction: column;
@@ -614,6 +609,20 @@ body {
   color: var(--color-text-tertiary);
 }
 
+.chat-tool-button {
+  position: relative;
+  z-index: 1;
+}
+
+.chat-upload {
+  flex: 0 0 auto;
+  display: inline-flex;
+}
+
+.chat-upload .ant-upload {
+  display: inline-flex;
+}
+
 .chat-send-button {
   width: 40px;
   height: 40px;