feat: 更新银行卡管理页面标题样式，调整文本颜色以提升可读性

src/views/trade-settings/bank-management/index.vue

@@ -118,7 +118,7 @@ onUpdated(() => {
           <div class="w-20 h-20 rounded-full bg-[#171717] flex items-center justify-center mb-6 shadow-lg">
             <ion-icon :icon="cardOutline" class="text-4xl text-white" />
           </div>
-          <h3 class="text-xl font-semibold text-#151515 dark:text-white mb-2">
+          <h3 class="text-xl font-semibold text-text-200 mb-2">
             {{ t('bankCard.empty.title') }}
           </h3>
           <p class="text-gray-600 dark:text-gray-400 text-sm leading-relaxed mb-8">