style:

src/views/orders/components/MailBox.jsx

@@ -121,7 +121,7 @@ const MailBox = ({ mailboxDir, onMailItemClick, ...props }) => {
           <Flex gap='small' vertical={true} justify='space-between' className='cursor-pointer'>
             <div>
               {orderNumber}
-              <span className={mailStateClass}>{item.MAI_Subject}</span>
+              <span className={mailStateClass}>{item.MAI_Subject || '[无主题]'}</span>
               {hasAtta}
             </div>
             <span className='text-neutral-500 text-wrap break-words break-all '>{countryName + item.SenderReceiver + ' ' + item.SRDate}</span>
@@ -153,6 +153,7 @@ const MailBox = ({ mailboxDir, onMailItemClick, ...props }) => {
           </Tooltip>
         </Flex>
 
+        <Flex wrap gap={8}>
         <NewEmailButton />
             <Button
               size='small'
@@ -183,6 +184,7 @@ const MailBox = ({ mailboxDir, onMailItemClick, ...props }) => {
               }}
             >删除</Button>
         <MailOrderSearchModal />
+        </Flex>
       </div>
       <div className='bg-white h-auto p-1 flex gap-1 items-center hidden'>
         <Form