fix: move refresh+orders buttons into 订单中心 card, remove from header

src/app/pay/page.tsx

@@ -439,33 +439,6 @@ function PayContent() {
               {'\u5B89\u5168\u652F\u4ED8\uFF0C\u81EA\u52A8\u5230\u8D26'}
             </p>
           </div>
-          {!isMobile && (
-            <div className="flex items-center gap-2">
-              <button
-                type="button"
-                onClick={loadUserAndOrders}
-                className={[
-                  'inline-flex items-center rounded-lg border px-3 py-1.5 text-xs font-medium transition-colors',
-                  isDark
-                    ? 'border-slate-600 text-slate-200 hover:bg-slate-800'
-                    : 'border-slate-300 text-slate-700 hover:bg-slate-100',
-                ].join(' ')}
-              >
-                刷新
-              </button>
-              <a
-                href={ordersUrl}
-                className={[
-                  'inline-flex items-center rounded-lg border px-3 py-1.5 text-xs font-medium transition-colors',
-                  isDark
-                    ? 'border-slate-600 text-slate-200 hover:bg-slate-800'
-                    : 'border-slate-300 text-slate-700 hover:bg-slate-100',
-                ].join(' ')}
-              >
-                {'\u6211\u7684\u8BA2\u5355'}
-              </a>
-            </div>
-          )}
         </div>
 
         {error && (
@@ -548,29 +521,33 @@ function PayContent() {
                 <div className="space-y-4">
                   <div className={['rounded-2xl border p-4', isDark ? 'border-slate-700 bg-slate-800/70' : 'border-slate-200 bg-slate-50'].join(' ')}>
                     <div className="flex items-center justify-between">
+                      <div>
                         <div className={['text-xs', isDark ? 'text-slate-400' : 'text-slate-500'].join(' ')}>订单中心</div>
+                        <div className="mt-1 text-lg font-semibold">最近订单：{myOrders.length} 条</div>
+                      </div>
+                      <div className="flex items-center gap-2">
                         <button
                           type="button"
                           onClick={loadUserAndOrders}
                           className={[
-                          'rounded-lg border px-2.5 py-1 text-xs font-medium transition-colors',
+                            'rounded-lg border px-3 py-1.5 text-xs font-medium transition-colors',
                             isDark ? 'border-slate-600 text-slate-200 hover:bg-slate-800' : 'border-slate-300 text-slate-700 hover:bg-slate-100',
                           ].join(' ')}
                         >
                           刷新
                         </button>
-                    </div>
-                    <div className="mt-1 text-lg font-semibold">最近订单：{myOrders.length} 条</div>
                         <a
                           href={pcOrdersUrl}
                           className={[
-                        'mt-3 inline-flex items-center rounded-lg border px-3 py-1.5 text-xs font-medium transition-colors',
+                            'rounded-lg border px-3 py-1.5 text-xs font-medium transition-colors',
                             isDark ? 'border-slate-600 text-slate-200 hover:bg-slate-800' : 'border-slate-300 text-slate-700 hover:bg-slate-100',
                           ].join(' ')}
                         >
-                      打开完整订单页
+                          我的订单
                         </a>
                       </div>
+                    </div>
+                  </div>
 
                   <div className={['rounded-2xl border p-4', isDark ? 'border-slate-700 bg-slate-800/70' : 'border-slate-200 bg-slate-50'].join(' ')}>
                     <div className={['text-xs', isDark ? 'text-slate-400' : 'text-slate-500'].join(' ')}>支付说明</div>