引入统一设计令牌并迁移首页、订单和数据 UI

suixinkan/Theme/AppNavigationBarAppearance.swift

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+//
+//  AppNavigationBarAppearance.swift
+//  suixinkan
+//
+
+import UIKit
+
+/// 全局 UINavigationBar 外观配置。
+enum AppNavigationBarAppearance {
+
+    /// 应用标准导航栏样式（白底、无 shadow、主色标题）。
+    static func applyGlobalAppearance() {
+        let appearance = UINavigationBarAppearance()
+        appearance.configureWithOpaqueBackground()
+        appearance.backgroundColor = AppColor.cardBackground
+        appearance.shadowColor = .clear
+        appearance.titleTextAttributes = [
+            .foregroundColor: AppColor.textPrimary,
+            .font: UIFont.app(.title),
+        ]
+
+        let navigationBar = UINavigationBar.appearance()
+        navigationBar.standardAppearance = appearance
+        navigationBar.scrollEdgeAppearance = appearance
+        navigationBar.compactAppearance = appearance
+        navigationBar.tintColor = AppColor.primary
+    }
+}