style: update pricing page header to match docs page style with subtitle

web/default/src/features/pricing/index.tsx

@@ -203,8 +203,11 @@ export function Pricing() {
           {/* Header */}
           <header className='mb-8 text-center'>
             <h1 className='text-[clamp(1.75rem,4vw,2.5rem)] leading-tight font-bold tracking-[-0.025em] text-foreground'>
-              <span className='text-primary'>{t('Pricing')}</span>
+              {t('Pricing')}
             </h1>
+            <p className='mx-auto mt-2 max-w-lg text-[15px] leading-relaxed text-muted-foreground'>
+              {t('Transparent pricing for all models, pay only for what you use')}
+            </p>
           </header>
 
           {/* Search + Filters */}

web/default/src/i18n/locales/zh.json

@@ -3114,6 +3114,7 @@
     "Prices synced successfully": "价格同步成功",
     "Prices vary by usage tier and request conditions": "价格根据用量档位和请求条件动态调整",
     "Pricing": "定价",
+    "Transparent pricing for all models, pay only for what you use": "所有模型透明定价，按需付费",
     "Pricing & Display": "定价与显示",
     "Pricing by Group": "按分组定价",
     "Pricing Configuration": "定价配置",