feat: 静态页面开发完成

lib/pages/policy_page.dart

@@ -29,7 +29,7 @@ class PolicyPage extends StatelessWidget {
             children: [
               Text(
                 isAgreement ? l10n.agreementTitle : l10n.privacyTitle,
-                style: const TextStyle(
+                style: TextStyle(
                   fontSize: 20,
                   fontWeight: FontWeight.bold,
                   color: AppColors.textPrimary,
@@ -38,7 +38,7 @@ class PolicyPage extends StatelessWidget {
               const SizedBox(height: 8),
               Text(
                 l10n.lastUpdated,
-                style: const TextStyle(fontSize: 12, color: AppColors.textTertiary),
+                style: TextStyle(fontSize: 12, color: AppColors.textTertiary),
               ),
               const SizedBox(height: 24),
               if (isAgreement) ..._buildAgreementContent(context, l10n) else ..._buildPrivacyContent(context, l10n),
@@ -92,7 +92,7 @@ class PolicyPage extends StatelessWidget {
       padding: const EdgeInsets.only(top: 20, bottom: 8),
       child: Text(
         title,
-        style: const TextStyle(
+        style: TextStyle(
           fontSize: 16,
           fontWeight: FontWeight.w600,
           color: AppColors.textPrimary,
@@ -104,7 +104,7 @@ class PolicyPage extends StatelessWidget {
   Widget _paragraph(String text) {
     return Text(
       text,
-      style: const TextStyle(
+      style: TextStyle(
         fontSize: 14,
         color: AppColors.textSecondary,
         height: 1.7,