优化扫码页 UI

lib/features/scan_qrcode/pages/page_scan_qrcode.dart

@@ -218,18 +218,41 @@ class _BrandHeader extends StatelessWidget {
     return Row(
       mainAxisSize: MainAxisSize.min,
       children: [
-        Image.asset(
-          _ScanAssets.appIcon,
-          width: 34.w,
-          height: 34.w,
-          fit: BoxFit.cover,
+        Expanded(
+          child: Row(
+            children: [
+              ClipRRect(
+                borderRadius: BorderRadius.circular(17.r),
+                child: Image.asset(
+                  _ScanAssets.appIcon,
+                  width: 34.w,
+                  height: 34.w,
+                  fit: BoxFit.cover,
+                ),
+              ),
+              // SizedBox(width: .w),
+              Image.asset(
+                _ScanAssets.appNameText,
+                width: 117.w,
+                height: 29.w,
+                fit: BoxFit.contain,
+              ),
+            ],
+          ),
         ),
-        SizedBox(width: 8.w),
-        Image.asset(
-          _ScanAssets.appNameText,
-          width: 117.w,
-          height: 29.w,
-          fit: BoxFit.contain,
+        Row(
+          children: [
+            Icon(Icons.chevron_left_rounded, color: Colors.black, size: 28.sp),
+            Text(
+              '返回',
+              style: TextStyle(
+                // color: const Color(0xFF53A7F3),
+                color: Colors.black,
+                fontSize: 14.sp,
+                fontWeight: FontWeight.w400,
+              ),
+            ),
+          ],
         ),
       ],
     );