refactor: 重构架构，接入线上 API 并修复编译错误

- 删除旧 ViewModel/Repository/Storage 层，简化架构
- 新增网络层：APIClient、APIConfig、APIError
- 新增数据模型层：APIModels（含 20+ DTO）
- 新增服务层：APIService（含 8 个业务服务类）
- 各页面内联组件定义，消除跨文件依赖
- 修复 ZXQuickAction、ZXAIInteractionRow、ZXWeakRow 缺失
- 修复 ZXTabBtn 参数标签缺失
- 配置 ATS 例外允许 HTTP 请求
- API 地址指向线上服务器 81.70.187.179:3001

AIStudyApp/AIStudyApp.xcodeproj/project.pbxproj

@@ -255,6 +255,7 @@
 				ENABLE_PREVIEWS = YES;
 				ENABLE_USER_SELECTED_FILES = readonly;
 				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_KEY_NSAppTransportSecurity = {NSAllowsArbitraryLoads = YES;};
 				"INFOPLIST_KEY_UIApplicationSceneManifest_Generation[sdk=iphoneos*]" = YES;
 				"INFOPLIST_KEY_UIApplicationSceneManifest_Generation[sdk=iphonesimulator*]" = YES;
 				"INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents[sdk=iphoneos*]" = YES;
@@ -299,6 +300,7 @@
 				ENABLE_PREVIEWS = YES;
 				ENABLE_USER_SELECTED_FILES = readonly;
 				GENERATE_INFOPLIST_FILE = YES;
+				INFOPLIST_KEY_NSAppTransportSecurity = {NSAllowsArbitraryLoads = YES;};
 				"INFOPLIST_KEY_UIApplicationSceneManifest_Generation[sdk=iphoneos*]" = YES;
 				"INFOPLIST_KEY_UIApplicationSceneManifest_Generation[sdk=iphonesimulator*]" = YES;
 				"INFOPLIST_KEY_UIApplicationSupportsIndirectInputEvents[sdk=iphoneos*]" = YES;

AIStudyApp/AIStudyApp/AIStudyAppApp.swift

@@ -2,75 +2,114 @@ import SwiftUI
 
 @main
 struct AIStudyAppApp: App {
-    @StateObject private var session: AppSession
+    @AppStorage("hasCompletedOnboarding") private var hasCompletedOnboarding = false
-    @StateObject private var colorSchemeManager = ColorSchemeManager.shared
-
-    init() {
-        let tokenStore = TokenStore()
-        let baseURL = URL(string: "https://api.longde.cloud")!
-        let apiClient = APIClient(baseURL: baseURL, tokenStore: tokenStore)
-        let authService = AuthService(apiClient: apiClient, tokenStore: tokenStore)
-        _session = StateObject(wrappedValue: AppSession(authService: authService, tokenStore: tokenStore))
-    }
 
     var body: some Scene {
         WindowGroup {
-            AppRootView(session: session)
+            if hasCompletedOnboarding {
-                .preferredColorScheme(colorSchemeManager.current.colorScheme)
+                ContentView().preferredColorScheme(.dark)
-                .dynamicTypeClamped()
-                .task {
-                    await session.bootstrap()
-                }
-        }
-    }
-}
-
-// MARK: - Root Router
-
-struct AppRootView: View {
-    @ObservedObject var session: AppSession
-
-    var body: some View {
-        Group {
-            if session.isLoading {
-                SplashPage {}
-            } else if !session.isAuthenticated {
-                LoginView(appSession: session) { _ in
-                    session.loginAsDemo()
-                }
-            } else if session.needsOnboarding {
-                OnboardingFlowView(session: session)
             } else {
-                ContentView()
+                OnboardingFlowView(hasCompletedOnboarding: $hasCompletedOnboarding)
+                    .preferredColorScheme(.dark)
             }
         }
     }
 }
 
-// MARK: - Onboarding Flow (Welcome → Onboarding → GoalSetup)
-
 struct OnboardingFlowView: View {
-    @ObservedObject var session: AppSession
+    @Binding var hasCompletedOnboarding: Bool
     @State private var step = 0
 
     var body: some View {
         ZStack {
             switch step {
-            case 0:
+            case 0: SplashPage { withAnimation(.easeInOut(duration: 0.5)) { step = 1 } }
-                WelcomePage {
+            case 1: WelcomePage { withAnimation { step = 2 } } onSkip: { hasCompletedOnboarding = true }
-                    withAnimation(.easeInOut(duration: 0.5)) { step = 1 }
+            case 2: LoginPage { step = 3 } onSkip: { hasCompletedOnboarding = true }
-                } onSkip: {
+            case 3: OnboardingPage { step = 4 }
-                    session.logout()
+            case 4: GoalSetupPage { $0 ? (hasCompletedOnboarding = true) : (step = 0) }
-                }
+            default: EmptyView()
-            case 1:
-                OnboardingPage { step = 2 }
-            case 2:
-                GoalSetupPage { _ in
-                    session.completeOnboarding()
-                }
-            default:
-                EmptyView()
-            }
             }
+        }.preferredColorScheme(.dark)
     }
 }
+
+// Splash
+struct SplashPage: View {
+    let onFinish: () -> Void
+    var body: some View {
+        ZStack {
+            LinearGradient(colors: [Color(hex: "#0D0D20"), Color(hex: "#0F0F1A"), Color(hex: "#130D20")], startPoint: .top, endPoint: .bottom).ignoresSafeArea()
+            Circle().fill(RadialGradient(colors: [Color(hex: "#7C6EFA", opacity: 0.25), .clear], center: .center, startRadius: 0, endRadius: 140)).frame(width: 280, height: 280).offset(y: -60).allowsHitTesting(false)
+            Circle().fill(RadialGradient(colors: [Color(hex: "#F97316", opacity: 0.15), .clear], center: .center, startRadius: 0, endRadius: 100)).frame(width: 200, height: 200).offset(y: 180).allowsHitTesting(false)
+            VStack(spacing: 0) {
+                RoundedRectangle(cornerRadius: 28).fill(LinearGradient(colors: [Color(hex: "#7C6EFA"), Color(hex: "#A78BFA"), Color(hex: "#F97316")], startPoint: .topLeading, endPoint: .bottomTrailing)).frame(width: 96, height: 96).overlay(Image(systemName: "brain.head.profile").font(.system(size: 44)).foregroundColor(.white.opacity(0.8))).shadow(color: Color(hex: "#7C6EFA", opacity: 0.5), radius: 40).padding(.bottom, 24)
+                Text("知习").font(.system(size: 36, weight: .heavy)).tracking(-1).foregroundStyle(LinearGradient(colors: [Color(hex: "#A78BFA"), Color(hex: "#F0F0FF"), Color(hex: "#F97316")], startPoint: .leading, endPoint: .trailing))
+                Text("Z H I X I").font(.system(size: 13, weight: .medium)).foregroundColor(Color(hex: "#F0F0FF", opacity: 0.4)).tracking(3).padding(.top, 6)
+                Text("AI-first 系统化学习").font(.system(size: 14)).foregroundColor(Color(hex: "#F0F0FF", opacity: 0.45)).tracking(0.5).padding(.top, 24)
+            }
+            VStack { Spacer(); ZStack(alignment: .leading) { RoundedRectangle(cornerRadius: 2).fill(Color(hex: "#FFFFFF", opacity: 0.1)).frame(width: 40, height: 3); RoundedRectangle(cornerRadius: 2).fill(LinearGradient(colors: [Color.zxPurple, Color.zxOrange], startPoint: .leading, endPoint: .trailing)).frame(width: 24, height: 3) }.padding(.bottom, 80) }
+        }.onAppear { DispatchQueue.main.asyncAfter(deadline: .now() + 2.0) { onFinish() } }
+    }
+}
+
+// Welcome
+struct WelcomePage: View { let onContinue: () -> Void; let onSkip: () -> Void
+    var body: some View { ZStack { ZXGradient.page.ignoresSafeArea(); Circle().fill(RadialGradient(colors: [Color(hex: "#7C6EFA", opacity: 0.12), .clear], center: .topTrailing, startRadius: 0, endRadius: 260)).frame(width: 260, height: 260).offset(x: 80, y: -120).allowsHitTesting(false)
+        VStack { Spacer()
+        VStack(spacing: 14) { HStack(spacing: 6) { Image(systemName: "sparkles").font(.system(size: 12)); Text("AI 驱动").font(.system(size: 12, weight: .semibold)) }.foregroundColor(Color.zxAccent).padding(.horizontal, 12).padding(.vertical, 6).background(Color(hex: "#7C6EFA", opacity: 0.1)).clipShape(Capsule())
+        Text("用 AI 重新定义\n你的学习方式").font(.system(size: 32, weight: .heavy)).tracking(-0.8).lineSpacing(4)
+        VStack(spacing: 10) { FeatureRow(icon: "🧠", title: "主动回忆", desc: "基于间隔重复的智能复习"); FeatureRow(icon: "🎤", title: "费曼解释", desc: "用自己的话讲出来"); FeatureRow(icon: "📊", title: "AI 分析", desc: "发现知识薄弱点") } }
+        VStack(spacing: 12) { Button { onContinue() } label: { Text("开始使用").font(.system(size: 16, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 56).background(ZXGradient.ctaButton).clipShape(RoundedRectangle(cornerRadius: 18)).shadow(color: Color(hex: "#7C6EFA", opacity: 0.4), radius: 20) }; Button { onSkip() } label: { Text("已有账号？立即登录").font(.system(size: 14, weight: .medium)).foregroundColor(Color(hex: "#F0F0FF", opacity: 0.7)) }.padding(.bottom, 32) } }.padding(.horizontal, 20) } }
+}
+struct FeatureRow: View { let icon: String; let title: String; let desc: String
+    var body: some View { HStack(spacing: 14) { Text(icon).font(.system(size: 20)).frame(width: 40, height: 40).background(Color(hex: "#7C6EFA", opacity: 0.1)).clipShape(RoundedRectangle(cornerRadius: 12)); VStack(alignment: .leading, spacing: 2) { Text(title).font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0); Text(desc).font(.system(size: 12)).foregroundColor(Color.zxF04) } }.padding(.horizontal, 16).padding(.vertical, 14).background(Color.zxFill003).overlay(RoundedRectangle(cornerRadius: 16).stroke(Color.zxBorder006, lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 16)) }
+}
+
+// Login
+struct LoginPage: View { let onContinue: () -> Void; let onSkip: () -> Void
+    @State private var isEmail = false; @State private var phone = ""; @State private var email = ""; @State private var pw = ""; @State private var showPw = false
+    var body: some View { ZStack { Color.zxBg0.ignoresSafeArea(); Circle().fill(RadialGradient(colors: [Color(hex: "#7C6EFA", opacity: 0.1), .clear], center: .top, startRadius: 0, endRadius: 200)).frame(width: 200, height: 200).offset(y: -60).allowsHitTesting(false)
+        VStack { Spacer()
+        VStack(spacing: 24) { VStack(spacing: 6) { Text("欢迎登录").font(.system(size: 28, weight: .heavy)).tracking(-0.6); Text("使用手机号或邮箱登录").font(.system(size: 14)).foregroundColor(Color.zxF05) }; HStack(spacing: 4) { ZXTabBtn(t: "手机号", active: !isEmail) { isEmail = false }; ZXTabBtn(t: "邮箱", active: isEmail) { isEmail = true } }.padding(4).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 12))
+        if isEmail { VStack(alignment: .leading, spacing: 8) { Text("邮箱").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5); ZXInputField(placeholder: "your@email.com", text: $email) } }
+        else { VStack(alignment: .leading, spacing: 8) { Text("手机号").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5); HStack(spacing: 0) { Text("+86").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0).padding(.trailing, 12).overlay(alignment: .trailing) { Rectangle().fill(Color.zxBorder01).frame(width: 1).padding(.vertical, 4) }.padding(.trailing, 12); TextField("手机号", text: $phone).keyboardType(.phonePad).font(.system(size: 15)).tint(Color.zxPurple) }.padding(.horizontal, 16).frame(height: 52).background(Color.zxFill004).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 14)) } }
+        ZXInputField(placeholder: "密码", text: $pw, isSecure: !showPw); HStack { Spacer(); Button { showPw.toggle() } label: { Image(systemName: showPw ? "eye" : "eye.slash").font(.system(size: 16)).foregroundColor(Color.zxF03) } }.padding(.trailing, 4)
+        HStack { Spacer(); Button("忘记密码？") {}.font(.system(size: 13)).foregroundColor(Color.zxPurple) }
+        Button { onContinue() } label: { Text("登录").font(.system(size: 16, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 56).background(ZXGradient.ctaButton).clipShape(RoundedRectangle(cornerRadius: 18)).shadow(color: Color(hex: "#7C6EFA", opacity: 0.4), radius: 20) }
+        HStack(spacing: 12) { Rectangle().fill(Color.zxBorder008).frame(height: 1); Text("或").font(.system(size: 12)).foregroundColor(Color.zxF03); Rectangle().fill(Color.zxBorder008).frame(height: 1) }
+        HStack(spacing: 12) { SocialLoginBtn(emoji: "💬", text: "微信登陆", color: .green) {}; SocialLoginBtn(emoji: "🍎", text: "Apple 登录", color: .white) {} } }.padding(.horizontal, 20).padding(.bottom, 32) } } }
+}
+struct ZXTabBtn: View { let t: String; let active: Bool; let a: () -> Void; var body: some View { Button(action: a) { Text(t).font(.system(size: 13, weight: .semibold)).foregroundColor(active ? .white : Color.zxF05).frame(maxWidth: .infinity).frame(height: 36).background(active ? AnyView(ZXGradient.brand) : AnyView(Color.clear)).clipShape(RoundedRectangle(cornerRadius: 9)) } } }
+struct ZXInputField: View { let placeholder: String; @Binding var text: String; var isSecure = false; var body: some View { HStack { if isSecure { SecureField(placeholder, text: $text) } else { TextField(placeholder, text: $text) } }.font(.system(size: 15)).tint(Color.zxPurple).padding(.horizontal, 16).frame(height: 52).background(Color.zxFill004).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 14)) } }
+struct SocialLoginBtn: View { let emoji: String; let text: String; let color: Color; let action: () -> Void; var body: some View { Button(action: action) { HStack(spacing: 10) { Text(emoji).font(.system(size: 18)); Text(text).font(.system(size: 11, weight: .medium)) }.foregroundColor(Color.zxF007).frame(maxWidth: .infinity).frame(height: 52).background(Color.zxFill004).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 14)) } } }
+
+// Onboarding
+struct OnboardingPage: View { let onContinue: () -> Void; @State private var step = 0
+    let titles = ["输入知识", "主动输出", "AI 分析", "掌握知识"]
+    let descs = ["从任何地方收集并导入学习资料，构建你的专属知识库。", "通过间隔回忆和费曼解释法，将知识转化为长期记忆。", "AI 自动定位薄弱知识点，给出针对性的学习建议。", "系统性掌握每一个知识点，建立牢固的知识体系。"]
+    var body: some View { ZStack { ZXGradient.page.ignoresSafeArea()
+        VStack(spacing: 0) { Spacer()
+        HStack(spacing: 6) { ForEach(0..<4, id: \.self) { i in RoundedRectangle(cornerRadius: 2).fill(i == step ? AnyShapeStyle(ZXGradient.brand) : AnyShapeStyle(Color(hex: "#FFFFFF", opacity: 0.1))).frame(width: i == step ? 24 : 8, height: 4) } }
+        VStack(spacing: 12) { Text(titles[step]).font(.system(size: 24, weight: .heavy)).tracking(-0.5); Text(descs[step]).font(.system(size: 14)).foregroundColor(Color.zxF04).lineSpacing(4).multilineTextAlignment(.center) }.padding(.top, 32).padding(.bottom, 40)
+        Button { if step < 3 { withAnimation { step += 1 } } else { onContinue() } } label: { Text(step < 3 ? "下一步" : "开始使用").font(.system(size: 16, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 56).background(ZXGradient.ctaButton).clipShape(RoundedRectangle(cornerRadius: 18)).shadow(color: Color(hex: "#7C6EFA", opacity: 0.4), radius: 20) }
+        Button("跳过") { onContinue() }.font(.system(size: 12)).foregroundColor(Color.zxF03).padding(.top, 12).padding(.bottom, 32) } }.padding(.horizontal, 20) }
+}
+
+// GoalSetup
+struct GoalSetupPage: View { let onComplete: (Bool) -> Void
+    @State private var selectedGoal = ""; let goals = [("🧑‍🎓","备考考试","公考、考研、考证等"),("💼","职业技能","编程、设计、产品等"),("📚","通识学习","扩充知识面"),("🎯","自定义","设定自己的目标")]
+    @State private var selectedMethod = ""; let methods = ["间隔回忆","费曼技巧","AI 分析"]
+    @State private var dailyMins = "30 分钟"; let times = ["15 分钟","30 分钟","1 小时","不限制"]
+    var body: some View { ZStack { ZXGradient.page.ignoresSafeArea()
+        VStack(spacing: 0) { Spacer()
+        Text("设定你的学习目标").font(.system(size: 24, weight: .heavy)).tracking(-0.5).foregroundColor(Color.zxF0).padding(.bottom, 24)
+        ScrollView { VStack(spacing: 16) {
+            VStack(alignment: .leading, spacing: 10) { Text("学习目标").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5)
+                ForEach(goals, id: \.1) { g in let sel = selectedGoal == g.1; Button { selectedGoal = g.1 } label: { HStack(spacing: 12) { Text(g.0).font(.system(size: 22)).frame(width: 44, height: 44).background(sel ? Color(hex: "#7C6EFA", opacity: 0.15) : Color.zxFill005).clipShape(RoundedRectangle(cornerRadius: 12)); VStack(alignment: .leading, spacing: 2) { Text(g.1).font(.system(size: 15, weight: .semibold)).foregroundColor(sel ? Color.zxPurple : Color.zxF0); Text(g.2).font(.system(size: 12)).foregroundColor(Color.zxF04) }; Spacer(); Circle().stroke(sel ? Color.zxPurple : Color(hex: "#FFFFFF", opacity: 0.2), lineWidth: 2).frame(width: 22, height: 22).overlay { if sel { Circle().fill(Color.zxPurple).frame(width: 12, height: 12) } } }.padding(14).background(sel ? Color(hex: "#7C6EFA", opacity: 0.08) : Color.zxFill003).overlay(RoundedRectangle(cornerRadius: 16).stroke(sel ? Color(hex: "#7C6EFA", opacity: 0.25) : Color.zxBorder006, lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 16)) }.foregroundColor(.primary) } }
+            VStack(alignment: .leading, spacing: 10) { Text("学习方法").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5)
+                HStack(spacing: 8) { ForEach(methods, id: \.self) { m in let sel = selectedMethod == m; Button { selectedMethod = m } label: { Text(m).font(.system(size: 13)).fontWeight(sel ? .semibold : .regular).foregroundColor(sel ? Color.zxPurple : Color.zxF05).padding(.horizontal, 16).padding(.vertical, 10).background(sel ? Color(hex: "#7C6EFA", opacity: 0.1) : Color.zxFill003).overlay(RoundedRectangle(cornerRadius: 20).stroke(sel ? Color(hex: "#7C6EFA", opacity: 0.25) : Color.zxBorder006, lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 20)) }.foregroundColor(.primary) } } }
+            VStack(alignment: .leading, spacing: 10) { Text("每日学习时间").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5)
+                HStack(spacing: 8) { ForEach(times, id: \.self) { t in let sel = dailyMins == t; Button { dailyMins = t } label: { Text(t).font(.system(size: 12)).fontWeight(sel ? .semibold : .regular).foregroundColor(sel ? Color.zxPurple : Color.zxF05).frame(maxWidth: .infinity).frame(height: 40).background(sel ? Color(hex: "#7C6EFA", opacity: 0.1) : Color.zxFill003).overlay(RoundedRectangle(cornerRadius: 12).stroke(sel ? Color(hex: "#7C6EFA", opacity: 0.25) : Color.zxBorder006, lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 12)) }.foregroundColor(.primary) } } } } }
+        Button { onComplete(true) } label: { Text("开始学习").font(.system(size: 16, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 56).background(ZXGradient.ctaButton).clipShape(RoundedRectangle(cornerRadius: 18)).shadow(color: Color(hex: "#7C6EFA", opacity: 0.4), radius: 20) }.padding(.top, 24).padding(.bottom, 32).padding(.horizontal, 20) } } }
+}

AIStudyApp/AIStudyApp/App/AppSession.swift

@@ -1,119 +0,0 @@
-import SwiftUI
-import Combine
-
-@MainActor
-final class AppSession: ObservableObject {
-    @Published var currentUser: User?
-    @Published var isAuthenticated = false
-    @Published var isLoading = true
-    @Published var authError: String?
-
-    private let authService: AuthServiceProtocol
-    private let tokenStore: TokenStoreProtocol
-
-    init(authService: AuthServiceProtocol, tokenStore: TokenStoreProtocol) {
-        self.authService = authService
-        self.tokenStore = tokenStore
-    }
-
-    // MARK: - Bootstrap
-
-    func bootstrap() async {
-        isLoading = true
-        authError = nil
-
-        guard let _ = try? tokenStore.getRefreshToken() else {
-            isAuthenticated = false
-            isLoading = false
-            return
-        }
-
-        do {
-            let response = try await authService.refreshSession()
-            currentUser = response.user
-            isAuthenticated = true
-        } catch {
-            try? tokenStore.clearAll()
-            isAuthenticated = false
-            if let apiError = error as? APIError, apiError.isAuthenticationError {
-                authError = nil
-            } else {
-                authError = error.localizedDescription
-            }
-        }
-
-        isLoading = false
-    }
-
-    // MARK: - Login
-
-    func loginWithApple() async {
-        isLoading = true
-        authError = nil
-
-        do {
-            let response = try await authService.loginWithApple()
-            currentUser = response.user
-            isAuthenticated = true
-        } catch {
-            authError = error.localizedDescription
-            isAuthenticated = false
-        }
-
-        isLoading = false
-    }
-
-    // MARK: - Logout
-
-    func logout() {
-        Task { try? await authService.logout() }
-        currentUser = nil
-        isAuthenticated = false
-        authError = nil
-    }
-
-    // MARK: - Demo Mode
-
-    func loginAsDemo() {
-        currentUser = User(
-            id: "demo",
-            appleUserId: "demo",
-            displayName: "演示用户",
-            email: nil,
-            preferredLanguage: "zh-Hans",
-            onboardingCompleted: true,
-            createdAt: ISO8601DateFormatter().string(from: Date()),
-            lastLoginAt: ISO8601DateFormatter().string(from: Date()),
-            status: .active
-        )
-        isAuthenticated = true
-        isLoading = false
-        authError = nil
-    }
-
-    // MARK: - Computed
-
-    var needsOnboarding: Bool {
-        currentUser?.onboardingCompleted == false
-    }
-
-    // MARK: - Onboarding
-
-    func completeOnboarding() {
-        guard var user = currentUser else { return }
-        // In production, this would call PATCH /api/users/me/onboarding
-        // For now, locally mutate to allow flow to proceed
-        user = User(
-            id: user.id,
-            appleUserId: user.appleUserId,
-            displayName: user.displayName,
-            email: user.email,
-            preferredLanguage: user.preferredLanguage,
-            onboardingCompleted: true,
-            createdAt: user.createdAt,
-            lastLoginAt: user.lastLoginAt,
-            status: user.status
-        )
-        currentUser = user
-    }
-}

AIStudyApp/AIStudyApp/ContentView.swift

@@ -2,24 +2,59 @@ import SwiftUI
 
 struct ContentView: View {
     @State private var selectedTab = "ai"
-
     var body: some View {
         ZStack {
-            Group {
+            switch selectedTab {
-                if selectedTab == "ai" { NavigationStack { AIHomeView() } }
+            case "ai": NavigationStack { AIHomeView().background(Color.zxBg0.ignoresSafeArea()) }
-                else if selectedTab == "library" { NavigationStack { LibraryHomeView() } }
+            case "library": NavigationStack { LibraryHomeView().background(Color.zxBg0.ignoresSafeArea()) }
-                else if selectedTab == "study" { NavigationStack { StudyHomeView() } }
+            case "study": NavigationStack { StudyHomeView().background(Color.zxBg0.ignoresSafeArea()) }
-                else if selectedTab == "analysis" { NavigationStack { AnalysisHomeView() } }
+            case "analysis": NavigationStack { AnalysisHomeView().background(Color.zxBg0.ignoresSafeArea()) }
-                else if selectedTab == "profile" { NavigationStack { ProfileView() } }
+            case "profile": NavigationStack { ProfileView().background(Color.zxBg0.ignoresSafeArea()) }
+            default: NavigationStack { AIHomeView() }
             }
-            .transition(.opacity.combined(with: .scale(scale: 0.98)))
+            VStack { Spacer(); ZXTabBar(active: $selectedTab) }.ignoresSafeArea(edges: .bottom)
-            .animation(.spring(response: 0.35, dampingFraction: 0.85), value: selectedTab)
+        }.ignoresSafeArea(edges: .bottom).preferredColorScheme(.dark)
-
-            VStack { Spacer(); ZXTabBar(active: $selectedTab) }
-                .ignoresSafeArea(edges: .bottom)
-        }
-        .ignoresSafeArea(edges: .bottom)
     }
 }
 
-// Shared components: ZXTabBar, ZXAIInputBar, ZXScoreBox, ZXIconBtn → Shared/Components/
+struct ZXTabBar: View {
+    @Binding var active: String
+    private let items = [("ai","AI","brain.head.profile"),("library","知识库","books.vertical.fill"),("study","学习","bolt.fill"),("analysis","分析","chart.bar.fill"),("profile","我的","person.fill")]
+    var body: some View{HStack(spacing:0){ForEach(items,id:\.0){item in let on=item.0==active;Button{active=item.0}label:{VStack(spacing:4){ZStack{if on{Circle().fill(Color.zxPurple.opacity(0.2)).frame(width:28,height:28).scaleEffect(1.4)};Image(systemName:item.2).font(.system(size:22,weight:on ? .semibold:.regular)).foregroundColor(on ? Color.zxPurple:Color(hex:"#F0F0FF",opacity:0.35))};Text(item.1).font(.system(size:10,weight:on ? .semibold:.regular)).foregroundColor(on ? Color.zxPurple:Color(hex:"#F0F0FF",opacity:0.35))}}.frame(maxWidth:.infinity)}}.padding(.top,6).padding(.bottom,34).frame(height:83).background(.ultraThinMaterial).background(Color.zxBg0.opacity(0.95)).overlay(alignment:.top){Rectangle().fill(Color.zxBorder008).frame(height:1)}}
+}
+
+struct ZXIconBtn: View {
+    let icon: String; let size: CGFloat; var branded = false; let action: () -> Void
+    var body: some View {Button(action:action){Image(systemName:icon).font(.system(size:size*0.44)).frame(width:size,height:size)}.foregroundColor(branded ? .white:Color.zxF05).background(branded ? AnyView(ZXGradient.brand):AnyView(Color(hex:"#FFFFFF",opacity:0.05))).clipShape(RoundedRectangle(cornerRadius:10)).overlay{if !branded{RoundedRectangle(cornerRadius:10).stroke(Color.zxBorder008,lineWidth:1)}}}
+}
+
+struct ZXScoreBox: View {let score:Int;let bg:Color;let fg:Color
+    var body: some View {Text("\(score)").font(.system(size:12,weight:.heavy)).foregroundColor(fg).frame(width:36,height:36).background(bg).clipShape(RoundedRectangle(cornerRadius:10))}
+}
+
+struct ZXWeakRow: View {
+    let score: Int; let topic: String; let lib: String; let priority: String
+    var body: some View {
+        HStack(spacing: 12) {
+            Text("\(score)").font(.system(size:13,weight:.heavy)).foregroundColor(Color.zxYellow)
+                .frame(width:40,height:40).background(Color.zxYellowBG(0.15)).clipShape(RoundedRectangle(cornerRadius:12))
+            VStack(alignment:.leading,spacing:2){
+                Text(topic).font(.system(size:13,weight:.semibold)).foregroundColor(Color.zxF0)
+                Text(lib).font(.system(size:11)).foregroundColor(Color.zxF04)
+            }.frame(maxWidth:.infinity,alignment:.leading)
+            Text("\(priority)优先").font(.system(size:11,weight:.bold))
+                .foregroundColor(priority=="高" ? Color.zxRed:Color.zxYellow)
+                .padding(.horizontal,8).padding(.vertical,3)
+                .background((priority=="高" ? Color.zxRedBG(0.15):Color.zxYellowBG(0.15))).clipShape(Capsule())
+        }
+        .padding(.horizontal,16).padding(.vertical,12)
+        .background(Color.zxYellowBG(0.06))
+        .overlay(RoundedRectangle(cornerRadius:14).stroke(Color(hex:"#F59E0B",opacity:0.15),lineWidth:1))
+        .clipShape(RoundedRectangle(cornerRadius:14))
+    }
+}
+
+struct ZXAIInputBar: View {
+    @Binding var text:String;let onSend:()->Void
+    var body: some View {HStack(spacing:10){Image(systemName:"sparkles").font(.system(size:16)).foregroundColor(Color.zxPurple);TextField("问 AI 任何学习问题…",text:$text).font(.system(size:14)).tint(Color.zxPurple);Spacer();Image(systemName:"mic.fill").font(.system(size:18)).foregroundColor(Color.zxF03);Button(action:onSend){Image(systemName:"arrow.up").font(.system(size:14,weight:.bold)).foregroundColor(.white).frame(width:30,height:30).background(ZXGradient.brand).clipShape(RoundedRectangle(cornerRadius:9))}}.padding(.horizontal,14).padding(.vertical,10).background(.ultraThinMaterial).background(Color.zxFill004).overlay(RoundedRectangle(cornerRadius:20).stroke(Color.zxBorder008,lineWidth:1)).clipShape(RoundedRectangle(cornerRadius:20)).padding(.horizontal,20).padding(.bottom,34)}
+}

AIStudyApp/AIStudyApp/Core/Appearance/ColorSchemeManager.swift

@@ -1,35 +0,0 @@
-import SwiftUI
-import Combine
-
-enum AppColorScheme: String, CaseIterable, Identifiable {
-    case system
-    case light
-    case dark
-
-    var id: String { rawValue }
-
-    var displayName: String {
-        switch self {
-        case .system: return String(localized: "跟随系统")
-        case .light: return String(localized: "浅色模式")
-        case .dark: return String(localized: "深色模式")
-        }
-    }
-
-    var colorScheme: ColorScheme? {
-        switch self {
-        case .system: return nil
-        case .light: return .light
-        case .dark: return .dark
-        }
-    }
-}
-
-@MainActor
-final class ColorSchemeManager: ObservableObject {
-    static let shared = ColorSchemeManager()
-
-    @AppStorage("app_color_scheme") var current: AppColorScheme = .dark
-
-    private init() {}
-}

AIStudyApp/AIStudyApp/Core/Extensions/Font+DynamicType.swift

@@ -1,35 +0,0 @@
-import SwiftUI
-
-// MARK: - Scaled Font Modifier
-
-/// Apply Dynamic Type scaling to a fixed font size, clamped to a reasonable range.
-struct ScaledFont: ViewModifier {
-    @ScaledMetric var size: CGFloat
-    let weight: Font.Weight
-    let design: Font.Design
-
-    init(size: CGFloat, weight: Font.Weight = .regular, design: Font.Design = .default) {
-        _size = ScaledMetric(wrappedValue: size, relativeTo: .body)
-        self.weight = weight
-        self.design = design
-    }
-
-    func body(content: Content) -> some View {
-        content.font(.system(size: size, weight: weight, design: design))
-    }
-}
-
-extension View {
-    func scaledFont(size: CGFloat, weight: Font.Weight = .regular, design: Font.Design = .default) -> some View {
-        modifier(ScaledFont(size: size, weight: weight, design: design))
-    }
-}
-
-// MARK: - Dynamic Type Range
-
-extension View {
-    /// Clamp Dynamic Type to prevent layout breaking at extreme sizes.
-    func dynamicTypeClamped() -> some View {
-        self.dynamicTypeSize(.xSmall ... .xxxLarge)
-    }
-}

AIStudyApp/AIStudyApp/Core/Extensions/View+StaggeredAppear.swift

@@ -1,45 +0,0 @@
-import SwiftUI
-
-// MARK: - Staggered Appear
-
-extension View {
-    func staggeredAppear(index: Int, baseDelay: Double = 0.05) -> some View {
-        self
-            .opacity(0)
-            .offset(y: 8)
-            .animation(.spring(response: 0.4, dampingFraction: 0.8).delay(Double(index) * baseDelay), value: index)
-    }
-}
-
-// MARK: - Animated Visibility
-
-struct AnimatedVisibility: ViewModifier {
-    let visible: Bool
-
-    func body(content: Content) -> some View {
-        content
-            .opacity(visible ? 1 : 0)
-            .scaleEffect(visible ? 1 : 0.95)
-            .animation(.spring(response: 0.3, dampingFraction: 0.7), value: visible)
-    }
-}
-
-extension View {
-    func animatedVisible(_ visible: Bool) -> some View {
-        modifier(AnimatedVisibility(visible: visible))
-    }
-}
-
-// MARK: - Spring Press
-
-struct SpringPress: ButtonStyle {
-    func makeBody(configuration: Configuration) -> some View {
-        configuration.label
-            .scaleEffect(configuration.isPressed ? 0.96 : 1)
-            .animation(.spring(response: 0.2, dampingFraction: 0.7), value: configuration.isPressed)
-    }
-}
-
-extension ButtonStyle where Self == SpringPress {
-    static var springPress: SpringPress { SpringPress() }
-}

AIStudyApp/AIStudyApp/Core/Localization/LanguageManager.swift

@@ -1,48 +0,0 @@
-//
-//  LanguageManager.swift
-//  AIStudyApp
-//
-//  语言管理：当前仅支持中文，预留多语言架构
-//
-
-import SwiftUI
-import Combine
-
-// MARK: - Supported Language
-
-enum AppLanguage: String, CaseIterable, Identifiable {
-    case chinese = "zh-Hans"
-
-    var id: String { rawValue }
-
-    var displayName: String {
-        switch self {
-        case .chinese: return "中文"
-        }
-    }
-}
-
-// MARK: - Language Manager
-
-@MainActor
-final class LanguageManager: ObservableObject {
-    static let shared = LanguageManager()
-
-    @AppStorage("app_language") var current: AppLanguage = .chinese {
-        didSet {
-            apply()
-        }
-    }
-
-    let supported: [AppLanguage] = AppLanguage.allCases
-
-    private init() {
-        apply()
-    }
-
-    /// Sets the AppleLanguages default. Takes effect on next app launch.
-    private func apply() {
-        UserDefaults.standard.set([current.rawValue], forKey: "AppleLanguages")
-        UserDefaults.standard.synchronize()
-    }
-}

AIStudyApp/AIStudyApp/Core/Localization/ZXStrings.swift

@@ -1,117 +0,0 @@
-//
-//  ZXStrings.swift
-//  AIStudyApp
-//
-//  非 SwiftUI Text 场景的本地化字符串引用。
-//  SwiftUI Text("中文") 自动走 LocalizedStringKey，无需改动。
-//  此文件供 ViewModel、Service、Alert 等需要 String 值的场景使用。
-//
-
-import Foundation
-
-enum ZXStrings {
-
-    // MARK: - General
-
-    static let ok = String(localized: "好的")
-    static let cancel = String(localized: "取消")
-    static let retry = String(localized: "重试")
-    static let loading = String(localized: "加载中…")
-    static let confirm = String(localized: "确认")
-    static let skip = String(localized: "跳过")
-    static let save = String(localized: "保存")
-    static let submit = String(localized: "提交")
-    static let submitting = String(localized: "提交中…")
-    static let search = String(localized: "搜索")
-
-    // MARK: - Login
-
-    static let loginWithApple = String(localized: "使用 Apple 继续")
-    static let loginTerms = String(localized: "登录即代表你同意《用户服务协议》和《隐私政策》")
-    static let debugSkip = String(localized: "跳过，进入演示模式")
-    static let brandName = String(localized: "知习")
-    static let brandTagline = String(localized: "更懂你，更会学。")
-    static let brandDescription = String(localized: "用 AI 把知识库、主动回忆和间隔复习连接起来，\n从\"看过\"走向\"真正学会\"。")
-    static let existingAccount = String(localized: "已有账号？立即登录")
-    static let redefineLearning = String(localized: "用 AI 重新定义\n你的学习方式")
-    static let getStarted = String(localized: "开始使用")
-    static let startLearning = String(localized: "开始学习")
-    static let nextStep = String(localized: "下一步")
-
-    // MARK: - Onboarding
-
-    static let setGoal = String(localized: "设定你的学习目标")
-    static let learningGoal = String(localized: "学习目标")
-    static let learningMethod = String(localized: "学习方法")
-    static let dailyMinutes = String(localized: "每日学习时间")
-    static let examPrep = String(localized: "备考考试")
-    static let careerSkill = String(localized: "职业技能")
-    static let generalLearning = String(localized: "通识学习")
-    static let customGoal = String(localized: "自定义")
-    static let inputKnowledge = String(localized: "输入知识")
-    static let activeOutput = String(localized: "主动输出")
-    static let aiAnalysis = String(localized: "AI 分析")
-    static let masterKnowledge = String(localized: "掌握知识")
-
-    // MARK: - Study
-
-    static let studyWorkspace = String(localized: "学习工作台")
-    static let todayTasks = String(localized: "今日任务")
-    static let todayProgress = String(localized: "今日进度")
-    static let weeklyActivity = String(localized: "本周学习活跃")
-    static let studied = String(localized: "已学")
-    static let remaining = String(localized: "剩余")
-    static let mastery = String(localized: "掌握")
-    static let tasksUnit = String(localized: "个任务")
-    static let minutesUnit = String(localized: "分钟")
-    static let aiAutoSchedule = String(localized: "AI 自动排期")
-    static let streak14Days = String(localized: "14 天连续")
-
-    // MARK: - Review
-
-    static let reviewPlan = String(localized: "复习计划")
-    static let today = String(localized: "今天")
-    static let tomorrow = String(localized: "明天")
-    static let thisWeek = String(localized: "本周")
-    static let noReviewTasks = String(localized: "暂无复习任务")
-    static let noReviewHint = String(localized: "完成学习后 AI 会自动生成复习计划")
-
-    // MARK: - Feedback
-
-    static let feedbackSubmitted = String(localized: "反馈已提交")
-    static let feedbackThanks = String(localized: "感谢你的反馈，我们会尽快处理。")
-    static let feedbackPlaceholder = String(localized: "请描述你遇到的问题或建议…")
-    static let feedbackCategory = String(localized: "反馈类型")
-    static let submitFeedback = String(localized: "提交反馈")
-
-    // MARK: - Settings
-
-    static let language = String(localized: "语言")
-    static let appearance = String(localized: "外观")
-    static let followSystem = String(localized: "跟随系统")
-    static let darkMode = String(localized: "深色模式")
-    static let lightMode = String(localized: "浅色模式")
-    static let learningGoalSettings = String(localized: "学习目标设置")
-    static let reviewReminder = String(localized: "复习提醒")
-    static let learningReport = String(localized: "学习报告")
-    static let learningMethodPref = String(localized: "学习方法偏好")
-    static let dataSync = String(localized: "数据同步与备份")
-
-    // MARK: - Error
-
-    static let networkError = String(localized: "网络请求失败")
-    static let authExpired = String(localized: "登录状态已失效")
-    static let parseError = String(localized: "数据解析失败")
-    static let invalidURL = String(localized: "无效的请求地址")
-    static let serverError = String(localized: "服务器返回错误")
-    static let tokenExpired = String(localized: "Token 已过期")
-    static let appleCredentialFailed = String(localized: "无法获取 Apple 登录凭证")
-    static let missingIdentityToken = String(localized: "未获取到身份验证信息")
-
-    // MARK: - Content Categories
-
-    static let catBug = String(localized: "Bug 反馈")
-    static let catFeature = String(localized: "功能建议")
-    static let catContent = String(localized: "内容问题")
-    static let catOther = String(localized: "其他")
-}

AIStudyApp/AIStudyApp/Core/Models/AIAnalysis.swift

@@ -1,15 +0,0 @@
-import Foundation
-
-struct AIAnalysis: Codable, Identifiable {
-    let id: String
-    let userId: String
-    let sessionId: String
-    let inputText: String
-    let outputJson: String
-    let masteryScore: Int
-    let weakPoints: [String]
-    let suggestions: [String]
-    let modelName: String
-    let createdAt: String
-    let costEstimate: Double?
-}

AIStudyApp/AIStudyApp/Core/Models/APIModels.swift

@@ -0,0 +1,315 @@
+//
+//  Models.swift - 对应 api-server 的所有 DTO
+//
+
+import Foundation
+
+// MARK: - Waitlist
+
+struct WaitlistEntry: Codable, Identifiable {
+    let id: String
+    let email: String
+    let nickname: String?
+    let devices: [String]?
+    let interests: [String]?
+    let painpoint: String?
+    let willingBeta: Bool?
+    let createdAt: String
+}
+
+struct WaitlistCreateRequest: Codable {
+    let email: String
+    let nickname: String?
+    let devices: [String]?
+    let interests: [String]?
+    let painpoint: String?
+    let willingBeta: Bool?
+
+    init(email: String, nickname: String? = nil, devices: [String]? = nil,
+         interests: [String]? = nil, painpoint: String? = nil, willingBeta: Bool = true) {
+        self.email = email
+        self.nickname = nickname
+        self.devices = devices
+        self.interests = interests
+        self.painpoint = painpoint
+        self.willingBeta = willingBeta
+    }
+}
+
+struct WaitlistResponse: Codable {
+    let success: Bool
+    let message: String?
+    let data: WaitlistEntry?
+}
+
+struct WaitlistStats: Codable {
+    let total: Int?
+    let today: Int?
+    let deviceBreakdown: [String: Int]?
+    let interestBreakdown: [String: Int]?
+
+    enum CodingKeys: String, CodingKey {
+        case total, today
+        case deviceBreakdown = "deviceBreakdown"
+        case interestBreakdown = "interestBreakdown"
+    }
+}
+
+// MARK: - Auth
+
+struct AuthResponse: Codable {
+    let success: Bool
+    let data: AuthTokens?
+}
+
+struct AuthTokens: Codable {
+    let accessToken: String
+    let refreshToken: String?
+    let expiresIn: Int?
+
+    enum CodingKeys: String, CodingKey {
+        case accessToken, refreshToken, expiresIn
+    }
+}
+
+struct AppleAuthRequest: Codable {
+    let identityToken: String
+    let fullName: AppleFullName?
+
+    struct AppleFullName: Codable {
+        let givenName: String?
+        let familyName: String?
+    }
+}
+
+// MARK: - User
+
+struct UserProfileResponse: Codable {
+    let success: Bool
+    let data: UserProfileData?
+}
+
+struct UserProfileData: Codable, Identifiable {
+    let id: String
+    let email: String
+    let nickname: String?
+    let avatar: String?
+    let preferences: UserPreferences?
+    let stats: UserStats?
+    let createdAt: String?
+}
+
+struct UserPreferences: Codable {
+    let dailyGoal: Int?
+    let reminderTime: String?
+    let theme: String?
+}
+
+struct UserStats: Codable {
+    let totalLearningDays: Int?
+    let completedCourses: Int?
+    let totalMinutes: Int?
+}
+
+struct UpdateUserRequest: Codable {
+    let nickname: String?
+    let preferences: UserPreferences?
+}
+
+// MARK: - Knowledge Base
+
+struct KnowledgeBase: Codable, Identifiable {
+    let id: String
+    let name: String
+    let description: String?
+    let icon: String?
+    let itemCount: Int?
+    let mastery: Double?
+    let tags: [String]?
+    let createdAt: String?
+}
+
+struct KnowledgeBaseListResponse: Codable {
+    let success: Bool
+    let data: [KnowledgeBase]?
+}
+
+struct CreateKnowledgeBaseRequest: Codable {
+    let name: String
+    let description: String?
+    let icon: String?
+}
+
+// MARK: - Knowledge Items
+
+struct KnowledgeItem: Codable, Identifiable {
+    let id: String
+    let title: String
+    let content: String?
+    let baseId: String?
+    let tags: [String]?
+    let mastery: Double?
+    let status: String?
+    let createdAt: String?
+
+    enum CodingKeys: String, CodingKey {
+        case id, title, content, tags, mastery, status, createdAt
+        case baseId = "baseId"
+    }
+}
+
+struct KnowledgeItemListResponse: Codable {
+    let success: Bool
+    let data: [KnowledgeItem]?
+}
+
+struct CreateKnowledgeItemRequest: Codable {
+    let title: String
+    let content: String?
+    let baseId: String
+    let tags: [String]?
+
+    enum CodingKeys: String, CodingKey {
+        case title, content, tags
+        case baseId = "baseId"
+    }
+}
+
+// MARK: - AI Analysis
+
+struct AIAnalysisRequest: Codable {
+    let text: String
+    let type: String
+    let context: AIAnalysisContext?
+
+    struct AIAnalysisContext: Codable {
+        let knowledgeBaseIds: [String]?
+        let focusItemIds: [String]?
+    }
+}
+
+struct AIAnalysisResponse: Codable {
+    let success: Bool
+    let data: AIAnalysisResult?
+}
+
+struct AIAnalysisResult: Codable, Identifiable {
+    let id: String
+    let type: String?
+    let summary: String?
+    let strengths: [String]?
+    let weaknesses: [String]?
+    let suggestions: [String]?
+    let score: Double?
+    let createdAt: String?
+}
+
+// MARK: - Feedback
+
+struct FeedbackCreateRequest: Codable {
+    let type: String
+    let content: String
+    let contact: String?
+
+    init(type: String = "general", content: String, contact: String? = nil) {
+        self.type = type
+        self.content = content
+        self.contact = contact
+    }
+}
+
+struct FeedbackResponse: Codable {
+    let success: Bool
+    let message: String?
+    let data: FeedbackData?
+}
+
+struct FeedbackData: Codable, Identifiable {
+    let id: String
+    let type: String?
+    let content: String?
+    let status: String?
+    let createdAt: String?
+}
+
+// MARK: - Learning Session
+
+struct LearningSessionCreateRequest: Codable {
+    let knowledgeBaseId: String?
+    let notes: String?
+
+    enum CodingKeys: String, CodingKey {
+        case notes
+        case knowledgeBaseId = "baseId"
+    }
+}
+
+struct LearningSessionResponse: Codable {
+    let success: Bool
+    let data: LearningSessionData?
+}
+
+struct LearningSessionData: Codable, Identifiable {
+    let id: String
+    let startedAt: String?
+    let endedAt: String?
+    let durationMinutes: Double?
+}
+
+// MARK: - Activity
+
+struct ActivitySummary: Codable {
+    let totalSessions: Int?
+    let totalMinutes: Double?
+    let streakDays: Int?
+    let weeklyMinutes: Double?
+}
+
+struct ActivitySummaryResponse: Codable {
+    let success: Bool
+    let data: ActivitySummary?
+}
+
+// MARK: - Reviews
+
+struct ReviewTask: Codable, Identifiable {
+    let id: String
+    let itemId: String?
+    let itemName: String?
+    let dueDate: String?
+    let type: String?
+}
+
+struct ReviewListResponse: Codable {
+    let success: Bool
+    let data: [ReviewTask]?
+}
+
+// MARK: - Focus Items / Weak Points
+
+struct FocusItem: Codable, Identifiable {
+    let id: String
+    let itemId: String?
+    let itemName: String?
+    let reason: String?
+    let priority: String?
+    let completed: Bool?
+    let createdAt: String?
+}
+
+struct FocusItemListResponse: Codable {
+    let success: Bool
+    let data: [FocusItem]?
+}
+
+// MARK: - Generic API Response
+
+struct APIStatusResponse: Codable {
+    let status: String?
+    let success: Bool?
+}
+
+struct GenericSuccessResponse: Codable {
+    let success: Bool
+    let message: String?
+}

AIStudyApp/AIStudyApp/Core/Models/AuthModels.swift

@@ -1,25 +0,0 @@
-import Foundation
-
-// MARK: - Request
-
-struct AppleLoginRequest: Encodable {
-    let identityToken: String
-    let authorizationCode: String?
-    let userIdentifier: String
-    let fullName: AppleFullName?
-    let email: String?
-}
-
-struct AppleFullName: Encodable {
-    let givenName: String?
-    let familyName: String?
-}
-
-// MARK: - Response
-
-struct AuthResponse: Decodable {
-    let accessToken: String
-    let refreshToken: String
-    let expiresIn: Int
-    let user: User
-}

AIStudyApp/AIStudyApp/Core/Models/Feedback.swift

@@ -1,18 +0,0 @@
-import Foundation
-
-struct Feedback: Codable, Identifiable {
-    let id: String
-    let userId: String
-    let category: FeedbackCategory
-    let content: String
-    let createdAt: String
-}
-
-enum FeedbackCategory: String, Codable, CaseIterable, Identifiable {
-    case bug = "Bug 反馈"
-    case feature = "功能建议"
-    case content = "内容问题"
-    case other = "其他"
-
-    var id: String { rawValue }
-}

AIStudyApp/AIStudyApp/Core/Models/KnowledgeBase.swift

@@ -1,11 +0,0 @@
-import Foundation
-
-struct KnowledgeBase: Codable, Identifiable {
-    let id: String
-    let title: String
-    let description: String
-    let language: String
-    let targetUser: String
-    let createdAt: String
-    let updatedAt: String
-}

AIStudyApp/AIStudyApp/Core/Models/LearningPath.swift

@@ -1,10 +0,0 @@
-import Foundation
-
-struct LearningPath: Codable, Identifiable {
-    let id: String
-    let knowledgeBaseId: String
-    let title: String
-    let description: String
-    let estimatedDays: Int
-    let order: Int
-}

AIStudyApp/AIStudyApp/Core/Models/LearningSession.swift

@@ -1,15 +0,0 @@
-import Foundation
-
-struct LearningSession: Codable, Identifiable {
-    let id: String
-    let userId: String
-    let lessonId: String
-    let startedAt: String
-    let endedAt: String?
-    let userInput: String
-    let aiAnalysis: AIAnalysis?
-    let masteryScore: Int
-    let weakPoints: [String]
-    let nextSuggestion: String?
-    let reviewAt: String?
-}

AIStudyApp/AIStudyApp/Core/Models/Lesson.swift

@@ -1,14 +0,0 @@
-import Foundation
-
-struct Lesson: Codable, Identifiable {
-    let id: String
-    let pathId: String
-    let title: String
-    let content: String
-    let objectives: [String]
-    let keyPoints: [String]
-    let recallQuestions: [String]
-    let practicePrompt: String
-    let order: Int
-    let estimatedMinutes: Int
-}

AIStudyApp/AIStudyApp/Core/Models/ReviewTask.swift

@@ -1,26 +0,0 @@
-import Foundation
-
-struct ReviewTask: Codable, Identifiable {
-    let id: String
-    let userId: String
-    let lessonId: String
-    let sourceSessionId: String
-    let reviewType: ReviewType
-    let scheduledAt: String
-    let completedAt: String?
-    let status: ReviewTaskStatus
-}
-
-enum ReviewType: String, Codable {
-    case spacedRepetition
-    case feynman
-    case recall
-    case weakPoint
-}
-
-enum ReviewTaskStatus: String, Codable {
-    case pending
-    case completed
-    case skipped
-    case overdue
-}

AIStudyApp/AIStudyApp/Core/Models/User.swift

@@ -1,19 +0,0 @@
-import Foundation
-
-struct User: Codable, Identifiable {
-    let id: String
-    let appleUserId: String
-    let displayName: String?
-    let email: String?
-    let preferredLanguage: String
-    let onboardingCompleted: Bool
-    let createdAt: String
-    let lastLoginAt: String?
-    let status: UserStatus
-}
-
-enum UserStatus: String, Codable {
-    case active
-    case inactive
-    case suspended
-}

AIStudyApp/AIStudyApp/Core/Models/UserLearningProfile.swift

@@ -1,16 +0,0 @@
-import Foundation
-
-struct UserLearningProfile: Codable, Identifiable {
-    let id: String
-    let userId: String
-    let currentKnowledgeBaseId: String?
-    let currentPathId: String?
-    let currentLessonId: String?
-    let overallLevel: Int
-    let weakPoints: [String]
-    let strengths: [String]
-    let recentMistakes: [String]
-    let reviewQueue: [String]
-    let learningStreak: Int
-    let updatedAt: String
-}

AIStudyApp/AIStudyApp/Core/Models/WaitlistEntry.swift

@@ -1,13 +0,0 @@
-import Foundation
-
-struct WaitlistEntry: Codable {
-    let email: String
-    let name: String?
-    let source: String
-
-    init(email: String, name: String? = nil, source: String = "ios_app") {
-        self.email = email
-        self.name = name
-        self.source = source
-    }
-}

AIStudyApp/AIStudyApp/Core/Network/APIClient.swift

@@ -1,75 +1,78 @@
+//
+//  APIClient.swift - 通用 HTTP 客户端
+//
+
 import Foundation
 
-protocol APIClientProtocol {
+actor APIClient {
-    func request<T: Decodable>(_ endpoint: APIEndpoint) async throws -> T
+    static let shared = APIClient()
-    func requestVoid(_ endpoint: APIEndpoint) async throws
-}
 
-final class APIClient: APIClientProtocol {
-    private let baseURL: URL
-    private let tokenStore: TokenStoreProtocol?
     private let session: URLSession
-    private let decoder: JSONDecoder
+    private var token: String?
 
-    init(baseURL: URL, tokenStore: TokenStoreProtocol? = nil, session: URLSession = .shared) {
+    private init() {
-        self.baseURL = baseURL
+        let config = URLSessionConfiguration.default
-        self.tokenStore = tokenStore
+        config.timeoutIntervalForRequest = APIConfig.timeout
-        self.session = session
+        config.timeoutIntervalForResource = 60
-        self.decoder = JSONDecoder()
+        session = URLSession(configuration: config)
     }
 
-    func request<T: Decodable>(_ endpoint: APIEndpoint) async throws -> T {
+    func setToken(_ token: String?) {
-        let (data, response) = try await perform(endpoint)
+        self.token = token
-        return try decodeResponse(data, response: response)
     }
 
-    func requestVoid(_ endpoint: APIEndpoint) async throws {
+    // MARK: - Generic request
-        let (_, response) = try await perform(endpoint)
-        guard let httpResponse = response as? HTTPURLResponse, (200...299).contains(httpResponse.statusCode) else {
-            throw APIError.httpError((response as? HTTPURLResponse)?.statusCode ?? 0, nil)
-        }
-    }
 
-    // MARK: - Private
+    func request<T: Decodable>(
+        _ path: String,
+        method: String = "GET",
+        body: Encodable? = nil,
+        queryItems: [URLQueryItem]? = nil
+    ) async throws -> T {
+        var components = URLComponents(url: APIConfig.url(path), resolvingAgainstBaseURL: true)!
+        if let queryItems { components.queryItems = queryItems }
 
-    private func perform(_ endpoint: APIEndpoint) async throws -> (Data, URLResponse) {
+        var request = URLRequest(url: components.url!)
-        let url = baseURL.appendingPathComponent(endpoint.path)
+        request.httpMethod = method
-        var request = URLRequest(url: url)
-        request.httpMethod = endpoint.method.rawValue
         request.setValue("application/json", forHTTPHeaderField: "Content-Type")
         request.setValue("application/json", forHTTPHeaderField: "Accept")
-        request.httpBody = endpoint.body
-        request.timeoutInterval = 30
 
-        if endpoint.requiresAuth {
+        if let token {
-            if let token = try tokenStore?.getAccessToken() {
             request.setValue("Bearer \(token)", forHTTPHeaderField: "Authorization")
-            } else {
-                throw APIError.unauthorized
         }
+
+        if let body {
+            request.httpBody = try JSONEncoder().encode(AnyEncodable(body))
         }
 
         let (data, response) = try await session.data(for: request)
 
         guard let httpResponse = response as? HTTPURLResponse else {
-            throw APIError.network(URLError(.badServerResponse))
+            throw APIError.networkError(NSError(domain: "", code: -1))
         }
 
         switch httpResponse.statusCode {
-        case 200...299:
+        case 200, 201:
-            return (data, response)
+            do {
+                return try JSONDecoder().decode(T.self, from: data)
+            } catch {
+                throw APIError.decodingFailed(error.localizedDescription)
+            }
         case 401:
             throw APIError.unauthorized
+        case 400..<500:
+            let msg = String(data: data, encoding: .utf8) ?? ""
+            throw APIError.serverError(msg)
         default:
-            throw APIError.httpError(httpResponse.statusCode, data)
+            throw APIError.requestFailed(httpResponse.statusCode)
-        }
-    }
-
-    private func decodeResponse<T: Decodable>(_ data: Data, response: URLResponse) throws -> T {
-        do {
-            return try decoder.decode(T.self, from: data)
-        } catch {
-            throw APIError.decoding(error)
         }
     }
 }
+
+// MARK: - Helper for encoding arbitrary Encodable
+
+struct AnyEncodable: Encodable {
+    let value: Encodable
+    init(_ value: Encodable) { self.value = value }
+    func encode(to encoder: Encoder) throws { try value.encode(to: encoder) }
+}

AIStudyApp/AIStudyApp/Core/Network/APIConfig.swift

@@ -0,0 +1,15 @@
+//
+//  APIConfig.swift
+//
+
+import Foundation
+
+enum APIConfig {
+    static let baseURL = "http://81.70.187.179:3001"
+
+    static let timeout: TimeInterval = 30
+
+    static func url(_ path: String) -> URL {
+        URL(string: "\(baseURL)\(path)")!
+    }
+}

AIStudyApp/AIStudyApp/Core/Network/APIEndpoint.swift

@@ -1,123 +0,0 @@
-import Foundation
-
-enum APIEndpoint {
-    // Auth
-    case appleLogin(AppleLoginRequest)
-    case refreshToken(String)
-    case me
-
-    // Sessions
-    case sessions
-    case session(String)
-    case createSession(CreateSessionRequest)
-    case updateSession(String, UpdateSessionRequest)
-    case progress
-
-    // AI
-    case analyze(AIAnalyzeRequest)
-    case analysis(String)
-    case recallQuestions(String)
-    case feynmanPrompt(String)
-
-    // Reviews
-    case reviews
-    case reviewsToday
-    case reviewsTomorrow
-    case reviewsWeek
-    case updateReview(String, UpdateReviewRequest)
-    case generateReviews
-
-    // Knowledge
-    case knowledgeBases
-    case knowledgeBase(String)
-    case paths(String)
-    case path(String)
-    case lesson(String)
-
-    // Feedback
-    case submitFeedback(SubmitFeedbackRequest)
-
-    // MARK: - Path
-
-    var path: String {
-        switch self {
-        case .appleLogin:                   return "/api/auth/apple"
-        case .refreshToken:                 return "/api/auth/refresh"
-        case .me:                           return "/api/users/me"
-        case .sessions:                     return "/api/sessions"
-        case .session(let id):              return "/api/sessions/\(id)"
-        case .createSession:                return "/api/sessions"
-        case .updateSession(let id, _):     return "/api/sessions/\(id)"
-        case .progress:                     return "/api/progress"
-        case .analyze:                      return "/api/ai/analyze"
-        case .analysis(let id):             return "/api/ai/analysis/\(id)"
-        case .recallQuestions(let id):      return "/api/ai/recall/\(id)"
-        case .feynmanPrompt(let id):        return "/api/ai/feynman/\(id)"
-        case .reviews:                      return "/api/reviews"
-        case .reviewsToday:                 return "/api/reviews/today"
-        case .reviewsTomorrow:              return "/api/reviews/tomorrow"
-        case .reviewsWeek:                  return "/api/reviews/week"
-        case .updateReview(let id, _):      return "/api/reviews/\(id)"
-        case .generateReviews:              return "/api/reviews/generate"
-        case .knowledgeBases:               return "/api/knowledge-bases"
-        case .knowledgeBase(let id):        return "/api/knowledge-bases/\(id)"
-        case .paths(let kbId):              return "/api/knowledge-bases/\(kbId)/paths"
-        case .path(let id):                 return "/api/paths/\(id)"
-        case .lesson(let id):               return "/api/lessons/\(id)"
-        case .submitFeedback:               return "/api/feedback"
-        }
-    }
-
-    // MARK: - Method
-
-    var method: HTTPMethod {
-        switch self {
-        case .appleLogin, .refreshToken, .createSession, .analyze,
-             .recallQuestions, .feynmanPrompt, .generateReviews, .submitFeedback:
-            return .post
-        case .updateSession, .updateReview:
-            return .put
-        case .me, .sessions, .session, .progress, .analysis,
-             .reviews, .reviewsToday, .reviewsTomorrow, .reviewsWeek,
-             .knowledgeBases, .knowledgeBase, .paths, .path, .lesson:
-            return .get
-        }
-    }
-
-    // MARK: - Body
-
-    var body: Data? {
-        let encoder = JSONEncoder()
-        switch self {
-        case .appleLogin(let r):            return try? encoder.encode(r)
-        case .refreshToken(let t):          return try? encoder.encode(["refreshToken": t])
-        case .createSession(let r):         return try? encoder.encode(r)
-        case .updateSession(_, let r):      return try? encoder.encode(r)
-        case .analyze(let r):               return try? encoder.encode(r)
-        case .recallQuestions(let id):      return try? encoder.encode(["lessonId": id])
-        case .feynmanPrompt(let id):        return try? encoder.encode(["lessonId": id])
-        case .updateReview(_, let r):       return try? encoder.encode(r)
-        case .submitFeedback(let r):        return try? encoder.encode(r)
-        case .generateReviews:              return try? encoder.encode([:] as [String: String])
-        default:                            return nil
-        }
-    }
-
-    // MARK: - Auth
-
-    var requiresAuth: Bool {
-        switch self {
-        case .appleLogin, .refreshToken:
-            return false
-        default:
-            return true
-        }
-    }
-}
-
-enum HTTPMethod: String {
-    case get = "GET"
-    case post = "POST"
-    case put = "PUT"
-    case delete = "DELETE"
-}

AIStudyApp/AIStudyApp/Core/Network/APIError.swift

@@ -1,39 +1,25 @@
+//
+//  APIError.swift
+//
+
 import Foundation
 
-enum APIError: Error, LocalizedError {
+enum APIError: LocalizedError {
     case invalidURL
-    case network(Error)
+    case requestFailed(Int)
-    case httpError(Int, Data?)
+    case decodingFailed(String)
-    case decoding(Error)
+    case networkError(Error)
     case unauthorized
-    case tokenExpired
     case serverError(String)
 
     var errorDescription: String? {
         switch self {
-        case .invalidURL:
+        case .invalidURL: return "无效的请求地址"
-            return ZXStrings.invalidURL
+        case .requestFailed(let code): return "请求失败 (\(code))"
-        case .network(let error):
+        case .decodingFailed(let msg): return "数据解析失败: \(msg)"
-            return "\(ZXStrings.networkError)：\(error.localizedDescription)"
+        case .networkError(let e): return e.localizedDescription
-        case .httpError(let code, _):
+        case .unauthorized: return "未授权，请重新登录"
-            return "\(ZXStrings.serverError)（\(code)）"
+        case .serverError(let msg): return msg
-        case .decoding:
-            return ZXStrings.parseError
-        case .unauthorized:
-            return ZXStrings.authExpired
-        case .tokenExpired:
-            return ZXStrings.tokenExpired
-        case .serverError(let msg):
-            return msg
-        }
-    }
-
-    var isAuthenticationError: Bool {
-        switch self {
-        case .unauthorized, .tokenExpired:
-            return true
-        default:
-            return false
         }
     }
 }

AIStudyApp/AIStudyApp/Core/Repository/FileCache.swift

@@ -1,52 +0,0 @@
-import Foundation
-
-// MARK: - File Cache Protocol
-
-protocol FileCacheProtocol {
-    func load<T: Codable>(_ type: T.Type, forKey key: String) throws -> T?
-    func save<T: Codable>(_ value: T, forKey key: String) throws
-    func remove(forKey key: String) throws
-    func clear() throws
-}
-
-// MARK: - JSON File Cache
-
-final class FileCache: FileCacheProtocol {
-    private let directory: URL
-
-    init(suite: String = "repository_cache") {
-        let base = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).first!
-        directory = base.appendingPathComponent(suite)
-        try? FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
-    }
-
-    func load<T: Codable>(_ type: T.Type, forKey key: String) throws -> T? {
-        let url = fileURL(forKey: key)
-        guard FileManager.default.fileExists(atPath: url.path) else { return nil }
-        let data = try Data(contentsOf: url)
-        return try JSONDecoder().decode(T.self, from: data)
-    }
-
-    func save<T: Codable>(_ value: T, forKey key: String) throws {
-        let data = try JSONEncoder().encode(value)
-        try data.write(to: fileURL(forKey: key), options: .atomic)
-    }
-
-    func remove(forKey key: String) throws {
-        let url = fileURL(forKey: key)
-        if FileManager.default.fileExists(atPath: url.path) {
-            try FileManager.default.removeItem(at: url)
-        }
-    }
-
-    func clear() throws {
-        if FileManager.default.fileExists(atPath: directory.path) {
-            try FileManager.default.removeItem(at: directory)
-            try FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true)
-        }
-    }
-
-    private func fileURL(forKey key: String) -> URL {
-        directory.appendingPathComponent(key.replacingOccurrences(of: "/", with: "_") + ".json")
-    }
-}

AIStudyApp/AIStudyApp/Core/Repository/KnowledgeRepository.swift

@@ -1,70 +0,0 @@
-import Foundation
-
-// MARK: - Knowledge Repository
-
-final class KnowledgeRepository {
-    let bases: BaseRepository<KnowledgeBase>
-    let paths: PathRepository
-    let lessons: LessonRepository
-
-    init(knowledgeService: KnowledgeServiceProtocol) {
-        self.bases = BaseRepository<KnowledgeBase>(
-            cacheKey: "knowledge_bases",
-            ttl: 600
-        ) {
-            try await knowledgeService.fetchKnowledgeBases()
-        }
-
-        self.paths = PathRepository(service: knowledgeService)
-        self.lessons = LessonRepository(service: knowledgeService)
-    }
-}
-
-// MARK: - Path Repository (keyed by knowledge base ID)
-
-final class PathRepository {
-    private let service: KnowledgeServiceProtocol
-    private let cache = FileCache()
-
-    init(service: KnowledgeServiceProtocol) {
-        self.service = service
-    }
-
-    func fetch(for knowledgeBaseId: String) async throws -> [LearningPath] {
-        let key = "paths_\(knowledgeBaseId)"
-        if let cached: Cached<[LearningPath]> = try? cache.load(Cached<[LearningPath]>.self, forKey: key) {
-            if Date().timeIntervalSince(cached.timestamp) < 600 { return cached.value }
-        }
-        let items = try await service.fetchPaths(knowledgeBaseId: knowledgeBaseId)
-        try cache.save(Cached(value: items, timestamp: Date()), forKey: key)
-        return items
-    }
-}
-
-// MARK: - Lesson Repository (keyed by path ID)
-
-final class LessonRepository {
-    private let service: KnowledgeServiceProtocol
-    private let cache = FileCache()
-
-    init(service: KnowledgeServiceProtocol) {
-        self.service = service
-    }
-
-    func fetch(for pathId: String) async throws -> [Lesson] {
-        let key = "lessons_\(pathId)"
-        if let cached: Cached<[Lesson]> = try? cache.load(Cached<[Lesson]>.self, forKey: key) {
-            if Date().timeIntervalSince(cached.timestamp) < 600 { return cached.value }
-        }
-        let detail = try await service.fetchPath(id: pathId)
-        try cache.save(Cached(value: detail.lessons, timestamp: Date()), forKey: key)
-        return detail.lessons
-    }
-}
-
-// MARK: - Cached Wrapper
-
-private struct Cached<T: Codable>: Codable {
-    let value: T
-    let timestamp: Date
-}

AIStudyApp/AIStudyApp/Core/Repository/Repository.swift

@@ -1,62 +0,0 @@
-import Foundation
-
-// MARK: - Repository Protocol
-
-protocol RepositoryProtocol {
-    associatedtype Item: Codable
-    func fetch() async throws -> [Item]
-    func sync() async throws -> [Item]
-    func clearCache() throws
-}
-
-// MARK: - Base Repository
-
-/// Generic repository: cache-first with stale-then-refresh strategy.
-class BaseRepository<Item: Codable & Identifiable>: RepositoryProtocol {
-    private let remote: () async throws -> [Item]
-    private let cache: FileCacheProtocol
-    private let cacheKey: String
-    private let ttl: TimeInterval
-
-    init(
-        cache: FileCacheProtocol = FileCache(),
-        cacheKey: String,
-        ttl: TimeInterval = 300,
-        remote: @escaping () async throws -> [Item]
-    ) {
-        self.cache = cache
-        self.cacheKey = cacheKey
-        self.ttl = ttl
-        self.remote = remote
-    }
-
-    /// Returns cached data immediately if fresh, then refreshes in background.
-    /// If cache is stale or missing, fetches from remote.
-    func fetch() async throws -> [Item] {
-        if let cached: Timestamped<[Item]> = try? cache.load(Timestamped<[Item]>.self, forKey: cacheKey) {
-            if Date().timeIntervalSince(cached.timestamp) < ttl {
-                return cached.value
-            }
-        }
-        return try await sync()
-    }
-
-    /// Force-fetches from remote and updates cache.
-    func sync() async throws -> [Item] {
-        let items = try await remote()
-        let stamped = Timestamped(value: items, timestamp: Date())
-        try cache.save(stamped, forKey: cacheKey)
-        return items
-    }
-
-    func clearCache() throws {
-        try cache.remove(forKey: cacheKey)
-    }
-}
-
-// MARK: - Timestamped Wrapper
-
-private struct Timestamped<T: Codable>: Codable {
-    let value: T
-    let timestamp: Date
-}

AIStudyApp/AIStudyApp/Core/Repository/ReviewRepository.swift

@@ -1,47 +0,0 @@
-import Foundation
-
-// MARK: - Review Repository
-
-final class ReviewRepository {
-    let today: BaseRepository<ReviewTask>
-    let tomorrow: BaseRepository<ReviewTask>
-    let week: BaseRepository<ReviewTask>
-    let all: BaseRepository<ReviewTask>
-
-    init(reviewService: ReviewServiceProtocol) {
-        self.today = BaseRepository<ReviewTask>(
-            cacheKey: "reviews_today",
-            ttl: 120
-        ) {
-            try await reviewService.fetchTodayReviews()
-        }
-
-        self.tomorrow = BaseRepository<ReviewTask>(
-            cacheKey: "reviews_tomorrow",
-            ttl: 300
-        ) {
-            try await reviewService.fetchTomorrowReviews()
-        }
-
-        self.week = BaseRepository<ReviewTask>(
-            cacheKey: "reviews_week",
-            ttl: 600
-        ) {
-            try await reviewService.fetchWeekReviews()
-        }
-
-        self.all = BaseRepository<ReviewTask>(
-            cacheKey: "reviews_all",
-            ttl: 300
-        ) {
-            try await reviewService.fetchReviews()
-        }
-    }
-
-    func clearAll() throws {
-        try today.clearCache()
-        try tomorrow.clearCache()
-        try week.clearCache()
-        try all.clearCache()
-    }
-}

AIStudyApp/AIStudyApp/Core/Services/AIService.swift

@@ -1,54 +0,0 @@
-import Foundation
-
-// MARK: - AI Service Protocol
-
-protocol AIServiceProtocol {
-    func analyze(request: AIAnalyzeRequest) async throws -> AIAnalysis
-    func fetchAnalysis(id: String) async throws -> AIAnalysis
-    func generateRecallQuestions(lessonId: String) async throws -> [String]
-    func generateFeynmanPrompt(lessonId: String) async throws -> String
-}
-
-// MARK: - Request / Response Models
-
-struct AIAnalyzeRequest: Codable {
-    let sessionId: String
-    let inputText: String
-    let lessonId: String
-}
-
-struct RecallQuestionsResponse: Codable {
-    let questions: [String]
-}
-
-struct FeynmanPromptResponse: Codable {
-    let prompt: String
-}
-
-// MARK: - AI Service Implementation
-
-final class AIService: AIServiceProtocol {
-    private let apiClient: APIClientProtocol
-
-    init(apiClient: APIClientProtocol) {
-        self.apiClient = apiClient
-    }
-
-    func analyze(request: AIAnalyzeRequest) async throws -> AIAnalysis {
-        try await apiClient.request(.analyze(request))
-    }
-
-    func fetchAnalysis(id: String) async throws -> AIAnalysis {
-        try await apiClient.request(.analysis(id))
-    }
-
-    func generateRecallQuestions(lessonId: String) async throws -> [String] {
-        let response: RecallQuestionsResponse = try await apiClient.request(.recallQuestions(lessonId))
-        return response.questions
-    }
-
-    func generateFeynmanPrompt(lessonId: String) async throws -> String {
-        let response: FeynmanPromptResponse = try await apiClient.request(.feynmanPrompt(lessonId))
-        return response.prompt
-    }
-}

AIStudyApp/AIStudyApp/Core/Services/APIService.swift

@@ -0,0 +1,172 @@
+//
+//  APIService.swift - 各模块 API 调用封装
+//
+
+import Foundation
+
+// MARK: - Waitlist
+
+@MainActor
+class WaitlistService {
+    static let shared = WaitlistService()
+    private let client = APIClient.shared
+
+    func join(email: String, nickname: String?, devices: [String]?,
+              interests: [String]?, painpoint: String?, willingBeta: Bool = true) async throws -> WaitlistResponse {
+        let body = WaitlistCreateRequest(email: email, nickname: nickname, devices: devices,
+                                          interests: interests, painpoint: painpoint, willingBeta: willingBeta)
+        return try await client.request("/waitlist", method: "POST", body: body)
+    }
+
+    func stats() async throws -> WaitlistStats {
+        return try await client.request("/waitlist/stats")
+    }
+}
+
+// MARK: - Auth
+
+@MainActor
+class AuthService {
+    static let shared = AuthService()
+    private let client = APIClient.shared
+
+    func appleLogin(identityToken: String, givenName: String?, familyName: String?) async throws -> AuthResponse {
+        let body = AppleAuthRequest(
+            identityToken: identityToken,
+            fullName: givenName != nil
+                ? AppleAuthRequest.AppleFullName(givenName: givenName, familyName: familyName)
+                : nil
+        )
+        let resp: AuthResponse = try await client.request("/auth/apple", method: "POST", body: body)
+        if let token = resp.data?.accessToken {
+            await client.setToken(token)
+        }
+        return resp
+    }
+
+    func logout() async throws {
+        let _: GenericSuccessResponse = try await client.request("/auth/logout", method: "POST")
+        await client.setToken(nil)
+    }
+}
+
+// MARK: - User
+
+@MainActor
+class UserService {
+    static let shared = UserService()
+    private let client = APIClient.shared
+
+    func myProfile() async throws -> UserProfileResponse {
+        return try await client.request("/users/me")
+    }
+
+    func updateProfile(nickname: String?, preferences: UserPreferences?) async throws -> UserProfileResponse {
+        let body = UpdateUserRequest(nickname: nickname, preferences: preferences)
+        return try await client.request("/users/me", method: "PATCH", body: body)
+    }
+}
+
+// MARK: - Knowledge Base
+
+@MainActor
+class KnowledgeBaseService {
+    static let shared = KnowledgeBaseService()
+    private let client = APIClient.shared
+
+    func list() async throws -> KnowledgeBaseListResponse {
+        return try await client.request("/knowledge-bases")
+    }
+
+    func create(name: String, description: String?, icon: String?) async throws -> KnowledgeBaseListResponse {
+        let body = CreateKnowledgeBaseRequest(name: name, description: description, icon: icon)
+        return try await client.request("/knowledge-bases", method: "POST", body: body)
+    }
+
+    func detail(id: String) async throws -> KnowledgeBaseListResponse {
+        return try await client.request("/knowledge-bases/\(id)")
+    }
+}
+
+// MARK: - Knowledge Items
+
+@MainActor
+class KnowledgeItemService {
+    static let shared = KnowledgeItemService()
+    private let client = APIClient.shared
+
+    func list(baseId: String) async throws -> KnowledgeItemListResponse {
+        return try await client.request("/knowledge-items", queryItems: [URLQueryItem(name: "baseId", value: baseId)])
+    }
+
+    func detail(id: String) async throws -> KnowledgeItemListResponse {
+        return try await client.request("/knowledge-items/\(id)")
+    }
+
+    func create(baseId: String, title: String, content: String?, tags: [String]?) async throws -> KnowledgeItemListResponse {
+        let body = CreateKnowledgeItemRequest(title: title, content: content, baseId: baseId, tags: tags)
+        return try await client.request("/knowledge-items", method: "POST", body: body)
+    }
+}
+
+// MARK: - AI Analysis
+
+@MainActor
+class AIAnalysisService {
+    static let shared = AIAnalysisService()
+    private let client = APIClient.shared
+
+    func analyze(text: String, type: String = "weakness", context: AIAnalysisRequest.AIAnalysisContext? = nil) async throws -> AIAnalysisResponse {
+        let body = AIAnalysisRequest(text: text, type: type, context: context)
+        return try await client.request("/ai-analysis", method: "POST", body: body)
+    }
+}
+
+// MARK: - Activity & Stats
+
+@MainActor
+class ActivityService {
+    static let shared = ActivityService()
+    private let client = APIClient.shared
+
+    func summary() async throws -> ActivitySummaryResponse {
+        return try await client.request("/activity/summary")
+    }
+}
+
+// MARK: - Reviews
+
+@MainActor
+class ReviewService {
+    static let shared = ReviewService()
+    private let client = APIClient.shared
+
+    func due() async throws -> ReviewListResponse {
+        return try await client.request("/reviews/due")
+    }
+}
+
+// MARK: - Focus Items / Weak Points
+
+@MainActor
+class FocusItemService {
+    static let shared = FocusItemService()
+    private let client = APIClient.shared
+
+    func list() async throws -> FocusItemListResponse {
+        return try await client.request("/focus-items")
+    }
+}
+
+// MARK: - Feedback
+
+@MainActor
+class FeedbackService {
+    static let shared = FeedbackService()
+    private let client = APIClient.shared
+
+    func submit(type: String = "general", content: String, contact: String? = nil) async throws -> FeedbackResponse {
+        let body = FeedbackCreateRequest(type: type, content: content, contact: contact)
+        return try await client.request("/feedback", method: "POST", body: body)
+    }
+}

AIStudyApp/AIStudyApp/Core/Services/AuthService.swift

@@ -1,118 +0,0 @@
-import AuthenticationServices
-import Foundation
-
-final class AuthService: NSObject, AuthServiceProtocol {
-    private let apiClient: APIClientProtocol
-    private let tokenStore: TokenStoreProtocol
-
-    private var continuation: CheckedContinuation<ASAuthorizationAppleIDCredential, Error>?
-
-    init(apiClient: APIClientProtocol, tokenStore: TokenStoreProtocol) {
-        self.apiClient = apiClient
-        self.tokenStore = tokenStore
-    }
-
-    // MARK: - Public
-
-    func loginWithApple() async throws -> AuthResponse {
-        let credential = try await requestAppleIDCredential()
-        let identityTokenData = credential.identityToken!
-        let identityToken = String(data: identityTokenData, encoding: .utf8)!
-
-        let request = AppleLoginRequest(
-            identityToken: identityToken,
-            authorizationCode: credential.authorizationCode.map { String(data: $0, encoding: .utf8)! },
-            userIdentifier: credential.user,
-            fullName: credential.fullName.map {
-                AppleFullName(givenName: $0.givenName, familyName: $0.familyName)
-            },
-            email: credential.email
-        )
-
-        let authResponse: AuthResponse = try await apiClient.request(.appleLogin(request))
-        try tokenStore.saveAccessToken(authResponse.accessToken)
-        try tokenStore.saveRefreshToken(authResponse.refreshToken)
-        return authResponse
-    }
-
-    func refreshSession() async throws -> AuthResponse {
-        guard let refreshToken = try tokenStore.getRefreshToken() else {
-            throw APIError.unauthorized
-        }
-        let authResponse: AuthResponse = try await apiClient.request(.refreshToken(refreshToken))
-        try tokenStore.saveAccessToken(authResponse.accessToken)
-        try tokenStore.saveRefreshToken(authResponse.refreshToken)
-        return authResponse
-    }
-
-    func logout() async throws {
-        try tokenStore.clearAll()
-    }
-
-    func fetchCurrentUser() async throws -> User {
-        try await apiClient.request(.me)
-    }
-
-    // MARK: - ASAuthorizationController
-
-    private func requestAppleIDCredential() async throws -> ASAuthorizationAppleIDCredential {
-        return try await withCheckedThrowingContinuation { continuation in
-            self.continuation = continuation
-            let provider = ASAuthorizationAppleIDProvider()
-            let request = provider.createRequest()
-            request.requestedScopes = [.fullName, .email]
-
-            let controller = ASAuthorizationController(authorizationRequests: [request])
-            controller.delegate = self
-            controller.presentationContextProvider = self
-            controller.performRequests()
-        }
-    }
-}
-
-// MARK: - ASAuthorizationControllerDelegate
-
-extension AuthService: ASAuthorizationControllerDelegate {
-    func authorizationController(
-        controller: ASAuthorizationController,
-        didCompleteWithAuthorization authorization: ASAuthorization
-    ) {
-        guard let credential = authorization.credential as? ASAuthorizationAppleIDCredential else {
-            continuation?.resume(throwing: AuthError.invalidCredential)
-            return
-        }
-        continuation?.resume(returning: credential)
-    }
-
-    func authorizationController(controller: ASAuthorizationController, didCompleteWithError error: Error) {
-        continuation?.resume(throwing: error)
-    }
-}
-
-// MARK: - ASAuthorizationControllerPresentationContextProviding
-
-extension AuthService: ASAuthorizationControllerPresentationContextProviding {
-    func presentationAnchor(for controller: ASAuthorizationController) -> ASPresentationAnchor {
-        guard let scene = UIApplication.shared.connectedScenes.first as? UIWindowScene,
-              let window = scene.windows.first(where: { $0.isKeyWindow }) else {
-            return UIWindow()
-        }
-        return window
-    }
-}
-
-// MARK: - AuthError
-
-enum AuthError: LocalizedError {
-    case invalidCredential
-    case missingIdentityToken
-
-    var errorDescription: String? {
-        switch self {
-        case .invalidCredential:
-            return ZXStrings.appleCredentialFailed
-        case .missingIdentityToken:
-            return ZXStrings.missingIdentityToken
-        }
-    }
-}

AIStudyApp/AIStudyApp/Core/Services/AuthServiceProtocol.swift

@@ -1,8 +0,0 @@
-import Foundation
-
-protocol AuthServiceProtocol {
-    func loginWithApple() async throws -> AuthResponse
-    func refreshSession() async throws -> AuthResponse
-    func logout() async throws
-    func fetchCurrentUser() async throws -> User
-}

AIStudyApp/AIStudyApp/Core/Services/FeedbackService.swift

@@ -1,28 +0,0 @@
-import Foundation
-
-// MARK: - Feedback Service Protocol
-
-protocol FeedbackServiceProtocol {
-    func submit(_ feedback: SubmitFeedbackRequest) async throws -> Feedback
-}
-
-// MARK: - Request Models
-
-struct SubmitFeedbackRequest: Codable {
-    let category: String
-    let content: String
-}
-
-// MARK: - Feedback Service Implementation
-
-final class FeedbackService: FeedbackServiceProtocol {
-    private let apiClient: APIClientProtocol
-
-    init(apiClient: APIClientProtocol) {
-        self.apiClient = apiClient
-    }
-
-    func submit(_ feedback: SubmitFeedbackRequest) async throws -> Feedback {
-        try await apiClient.request(.submitFeedback(feedback))
-    }
-}

AIStudyApp/AIStudyApp/Core/Services/KnowledgeService.swift

@@ -1,48 +0,0 @@
-import Foundation
-
-// MARK: - Knowledge Service Protocol
-
-protocol KnowledgeServiceProtocol {
-    func fetchKnowledgeBases() async throws -> [KnowledgeBase]
-    func fetchKnowledgeBase(id: String) async throws -> KnowledgeBase
-    func fetchPaths(knowledgeBaseId: String) async throws -> [LearningPath]
-    func fetchPath(id: String) async throws -> LearningPathDetail
-    func fetchLesson(id: String) async throws -> Lesson
-}
-
-// MARK: - Response Models
-
-struct LearningPathDetail: Codable {
-    let path: LearningPath
-    let lessons: [Lesson]
-}
-
-// MARK: - Knowledge Service Implementation
-
-final class KnowledgeService: KnowledgeServiceProtocol {
-    private let apiClient: APIClientProtocol
-
-    init(apiClient: APIClientProtocol) {
-        self.apiClient = apiClient
-    }
-
-    func fetchKnowledgeBases() async throws -> [KnowledgeBase] {
-        try await apiClient.request(.knowledgeBases)
-    }
-
-    func fetchKnowledgeBase(id: String) async throws -> KnowledgeBase {
-        try await apiClient.request(.knowledgeBase(id))
-    }
-
-    func fetchPaths(knowledgeBaseId: String) async throws -> [LearningPath] {
-        try await apiClient.request(.paths(knowledgeBaseId))
-    }
-
-    func fetchPath(id: String) async throws -> LearningPathDetail {
-        try await apiClient.request(.path(id))
-    }
-
-    func fetchLesson(id: String) async throws -> Lesson {
-        try await apiClient.request(.lesson(id))
-    }
-}

AIStudyApp/AIStudyApp/Core/Services/LearningService.swift

@@ -1,63 +0,0 @@
-import Foundation
-
-// MARK: - Learning Service Protocol
-
-protocol LearningServiceProtocol {
-    func fetchSessions() async throws -> [LearningSession]
-    func fetchSession(id: String) async throws -> LearningSession
-    func createSession(request: CreateSessionRequest) async throws -> LearningSession
-    func updateSession(id: String, request: UpdateSessionRequest) async throws -> LearningSession
-    func fetchProgress() async throws -> LearningProgress
-}
-
-// MARK: - Request / Response Models
-
-struct CreateSessionRequest: Codable {
-    let lessonId: String
-    let userInput: String
-}
-
-struct UpdateSessionRequest: Codable {
-    let endedAt: String?
-    let userInput: String?
-    let masteryScore: Int?
-}
-
-struct LearningProgress: Codable {
-    let totalSessions: Int
-    let completedSessions: Int
-    let totalMinutes: Int
-    let averageScore: Int
-    let streak: Int
-    let weeklyActivity: [CGFloat]
-}
-
-// MARK: - Learning Service Implementation
-
-final class LearningService: LearningServiceProtocol {
-    private let apiClient: APIClientProtocol
-
-    init(apiClient: APIClientProtocol) {
-        self.apiClient = apiClient
-    }
-
-    func fetchSessions() async throws -> [LearningSession] {
-        try await apiClient.request(.sessions)
-    }
-
-    func fetchSession(id: String) async throws -> LearningSession {
-        try await apiClient.request(.session(id))
-    }
-
-    func createSession(request: CreateSessionRequest) async throws -> LearningSession {
-        try await apiClient.request(.createSession(request))
-    }
-
-    func updateSession(id: String, request: UpdateSessionRequest) async throws -> LearningSession {
-        try await apiClient.request(.updateSession(id, request))
-    }
-
-    func fetchProgress() async throws -> LearningProgress {
-        try await apiClient.request(.progress)
-    }
-}

AIStudyApp/AIStudyApp/Core/Services/ReviewService.swift

@@ -1,52 +0,0 @@
-import Foundation
-
-// MARK: - Review Service Protocol
-
-protocol ReviewServiceProtocol {
-    func fetchReviews() async throws -> [ReviewTask]
-    func fetchTodayReviews() async throws -> [ReviewTask]
-    func fetchTomorrowReviews() async throws -> [ReviewTask]
-    func fetchWeekReviews() async throws -> [ReviewTask]
-    func updateReviewStatus(id: String, status: ReviewTaskStatus) async throws -> ReviewTask
-    func generateReviews() async throws -> [ReviewTask]
-}
-
-// MARK: - Request Models
-
-struct UpdateReviewRequest: Codable {
-    let status: ReviewTaskStatus
-}
-
-// MARK: - Review Service Implementation
-
-final class ReviewService: ReviewServiceProtocol {
-    private let apiClient: APIClientProtocol
-
-    init(apiClient: APIClientProtocol) {
-        self.apiClient = apiClient
-    }
-
-    func fetchReviews() async throws -> [ReviewTask] {
-        try await apiClient.request(.reviews)
-    }
-
-    func fetchTodayReviews() async throws -> [ReviewTask] {
-        try await apiClient.request(.reviewsToday)
-    }
-
-    func fetchTomorrowReviews() async throws -> [ReviewTask] {
-        try await apiClient.request(.reviewsTomorrow)
-    }
-
-    func fetchWeekReviews() async throws -> [ReviewTask] {
-        try await apiClient.request(.reviewsWeek)
-    }
-
-    func updateReviewStatus(id: String, status: ReviewTaskStatus) async throws -> ReviewTask {
-        try await apiClient.request(.updateReview(id, UpdateReviewRequest(status: status)))
-    }
-
-    func generateReviews() async throws -> [ReviewTask] {
-        try await apiClient.request(.generateReviews)
-    }
-}

AIStudyApp/AIStudyApp/Core/Storage/Entities/LearningRecordEntity.swift

@@ -1,37 +0,0 @@
-import Foundation
-
-struct LearningRecordEntity: Codable, Identifiable {
-    var id: UUID
-    var lessonTitle: String
-    var durationMinutes: Int
-    var masteryScore: Int
-    var weakPoints: [String]
-    var completedAt: Date
-    var createdAt: Date
-
-    init(lessonTitle: String = "", durationMinutes: Int = 0, masteryScore: Int = 0, weakPoints: [String] = [], completedAt: Date = Date()) {
-        self.id = UUID()
-        self.lessonTitle = lessonTitle
-        self.durationMinutes = durationMinutes
-        self.masteryScore = masteryScore
-        self.weakPoints = weakPoints
-        self.completedAt = completedAt
-        self.createdAt = Date()
-    }
-
-    static let weekActivitySeed: [(Int, Int)] = [
-        (-6, 25), (-5, 55), (-4, 80), (-3, 35), (-2, 70), (-1, 45), (0, 15)
-    ]
-
-    static func seedData() -> [LearningRecordEntity] {
-        weekActivitySeed.map { offset, minutes in
-            let date = Calendar.current.date(byAdding: .day, value: offset, to: Date())!
-            return LearningRecordEntity(
-                lessonTitle: "学习记录",
-                durationMinutes: minutes,
-                masteryScore: Int.random(in: 60...95),
-                completedAt: date
-            )
-        }
-    }
-}

AIStudyApp/AIStudyApp/Core/Storage/Entities/ReviewTaskEntity.swift

@@ -1,65 +0,0 @@
-import Foundation
-
-struct ReviewTaskEntity: Codable, Identifiable {
-    var id: UUID
-    var lessonId: String
-    var reviewType: String
-    var scheduledAt: Date
-    var completedAt: Date?
-    var status: String
-    var createdAt: Date
-
-    init(lessonId: String = "", reviewType: String = "recall", scheduledAt: Date = Date(), completedAt: Date? = nil, status: String = "pending") {
-        self.id = UUID()
-        self.lessonId = lessonId
-        self.reviewType = reviewType
-        self.scheduledAt = scheduledAt
-        self.completedAt = completedAt
-        self.status = status
-        self.createdAt = Date()
-    }
-
-    var statusEnum: ReviewTaskEntityStatus {
-        get { ReviewTaskEntityStatus(rawValue: status) ?? .pending }
-        set { status = newValue.rawValue }
-    }
-
-    var reviewTypeEnum: ReviewTaskEntityType {
-        get { ReviewTaskEntityType(rawValue: reviewType) ?? .recall }
-        set { reviewType = newValue.rawValue }
-    }
-
-    var isToday: Bool { Calendar.current.isDateInToday(scheduledAt) }
-    var isTomorrow: Bool { Calendar.current.isDateInTomorrow(scheduledAt) }
-    var isThisWeek: Bool {
-        guard let weekLater = Calendar.current.date(byAdding: .day, value: 7, to: Date()) else { return false }
-        return scheduledAt > Date() && scheduledAt <= weekLater
-    }
-
-    static func seedData() -> [ReviewTaskEntity] {
-        let today = Date()
-        let tomorrow = Calendar.current.date(byAdding: .day, value: 1, to: today)!
-        let day3 = Calendar.current.date(byAdding: .day, value: 3, to: today)!
-        let day5 = Calendar.current.date(byAdding: .day, value: 5, to: today)!
-
-        let items: [(String, String, Date)] = [
-            ("注意力机制核心概念", "recall", today),
-            ("Transformer 结构费曼解释", "feynman", today),
-            ("反向传播数学推导", "spacedRepetition", tomorrow),
-            ("CNN vs RNN 对比", "recall", tomorrow),
-            ("损失函数选择指南", "weakPoint", day3),
-            ("优化器对比总结", "spacedRepetition", day5),
-        ]
-        return items.map { lessonId, type, date in
-            ReviewTaskEntity(lessonId: lessonId, reviewType: type, scheduledAt: date)
-        }
-    }
-}
-
-enum ReviewTaskEntityStatus: String, CaseIterable, Codable {
-    case pending, completed, skipped, overdue
-}
-
-enum ReviewTaskEntityType: String, CaseIterable, Codable {
-    case spacedRepetition, feynman, recall, weakPoint
-}

AIStudyApp/AIStudyApp/Core/Storage/Entities/StudyTaskEntity.swift

@@ -1,47 +0,0 @@
-import SwiftUI
-
-struct StudyTaskEntity: Codable, Identifiable {
-    var id: UUID
-    var title: String
-    var taskType: String
-    var colorName: String
-    var minutes: Int
-    var isDone: Bool
-    var createdAt: Date
-    var sortOrder: Int
-
-    init(title: String, taskType: String, colorName: String, minutes: Int, isDone: Bool = false, sortOrder: Int = 0) {
-        self.id = UUID()
-        self.title = title
-        self.taskType = taskType
-        self.colorName = colorName
-        self.minutes = minutes
-        self.isDone = isDone
-        self.createdAt = Date()
-        self.sortOrder = sortOrder
-    }
-
-    var color: Color {
-        switch colorName {
-        case "purple": return .zxPurple
-        case "orange": return .zxOrange
-        case "teal": return .zxTeal
-        case "accent": return .zxAccent
-        case "yellow": return .zxYellow
-        default: return .zxAccent
-        }
-    }
-
-    static func seedData() -> [StudyTaskEntity] {
-        let items: [(String, String, String, Int, Int)] = [
-            ("机器学习 - 回忆测试", "回忆测试", "purple", 10, 0),
-            ("高数 - 间隔复习 8 题", "间隔复习", "orange", 15, 1),
-            ("英语词汇 - 25 个待复习", "词汇复习", "teal", 8, 2),
-            ("注意力机制 - 费曼解释", "费曼练习", "accent", 12, 3),
-            ("产品设计 - 薄弱点复习", "薄弱点", "yellow", 10, 4),
-        ]
-        return items.map { title, type, color, min, order in
-            StudyTaskEntity(title: title, taskType: type, colorName: color, minutes: min, sortOrder: order)
-        }
-    }
-}

AIStudyApp/AIStudyApp/Core/Storage/KeychainStore.swift

@@ -1,79 +0,0 @@
-import Foundation
-import Security
-
-enum KeychainError: Error {
-    case saveFailed(OSStatus)
-    case loadFailed(OSStatus)
-    case deleteFailed(OSStatus)
-    case itemNotFound
-    case invalidData
-}
-
-final class KeychainStore {
-    private let service: String
-
-    init(service: String = Bundle.main.bundleIdentifier ?? "com.zx.keystore") {
-        self.service = service
-    }
-
-    func save(key: String, data: Data) throws {
-        try delete(key: key)
-
-        let query: [String: Any] = [
-            kSecClass as String: kSecClassGenericPassword,
-            kSecAttrService as String: service,
-            kSecAttrAccount as String: key,
-            kSecValueData as String: data,
-            kSecAttrAccessible as String: kSecAttrAccessibleWhenUnlockedThisDeviceOnly,
-        ]
-
-        let status = SecItemAdd(query as CFDictionary, nil)
-        guard status == errSecSuccess else {
-            throw KeychainError.saveFailed(status)
-        }
-    }
-
-    func load(key: String) throws -> Data? {
-        let query: [String: Any] = [
-            kSecClass as String: kSecClassGenericPassword,
-            kSecAttrService as String: service,
-            kSecAttrAccount as String: key,
-            kSecReturnData as String: true,
-            kSecMatchLimit as String: kSecMatchLimitOne,
-        ]
-
-        var result: AnyObject?
-        let status = SecItemCopyMatching(query as CFDictionary, &result)
-
-        switch status {
-        case errSecSuccess:
-            guard let data = result as? Data else {
-                throw KeychainError.invalidData
-            }
-            return data
-        case errSecItemNotFound:
-            return nil
-        default:
-            throw KeychainError.loadFailed(status)
-        }
-    }
-
-    func delete(key: String) throws {
-        let query: [String: Any] = [
-            kSecClass as String: kSecClassGenericPassword,
-            kSecAttrService as String: service,
-            kSecAttrAccount as String: key,
-        ]
-
-        let status = SecItemDelete(query as CFDictionary)
-        guard status == errSecSuccess || status == errSecItemNotFound else {
-            throw KeychainError.deleteFailed(status)
-        }
-    }
-
-    func clearAll(keys: [String]) throws {
-        for key in keys {
-            try? delete(key: key)
-        }
-    }
-}

AIStudyApp/AIStudyApp/Core/Storage/PersistenceController.swift

@@ -1,60 +0,0 @@
-import Foundation
-
-@MainActor
-final class PersistenceController {
-    static let shared = PersistenceController()
-
-    private let cache = FileCache(suite: "app_persistence")
-    private var seeded = false
-
-    private init() {}
-
-    // MARK: - Study Tasks
-
-    func loadTasks() -> [StudyTaskEntity] {
-        if !seeded { seedIfNeeded() }
-        return (try? cache.load([StudyTaskEntity].self, forKey: "study_tasks")) ?? []
-    }
-
-    func saveTasks(_ tasks: [StudyTaskEntity]) {
-        try? cache.save(tasks, forKey: "study_tasks")
-    }
-
-    // MARK: - Review Tasks
-
-    func loadReviewTasks() -> [ReviewTaskEntity] {
-        if !seeded { seedIfNeeded() }
-        return (try? cache.load([ReviewTaskEntity].self, forKey: "review_tasks")) ?? []
-    }
-
-    func saveReviewTasks(_ tasks: [ReviewTaskEntity]) {
-        try? cache.save(tasks, forKey: "review_tasks")
-    }
-
-    // MARK: - Learning Records
-
-    func loadRecords() -> [LearningRecordEntity] {
-        if !seeded { seedIfNeeded() }
-        return (try? cache.load([LearningRecordEntity].self, forKey: "learning_records")) ?? []
-    }
-
-    func saveRecords(_ records: [LearningRecordEntity]) {
-        try? cache.save(records, forKey: "learning_records")
-    }
-
-    // MARK: - Seed
-
-    func seedIfNeeded() {
-        guard !seeded else { return }
-        seeded = true
-        if (try? cache.load([StudyTaskEntity].self, forKey: "study_tasks")) == nil {
-            try? cache.save(StudyTaskEntity.seedData(), forKey: "study_tasks")
-        }
-        if (try? cache.load([ReviewTaskEntity].self, forKey: "review_tasks")) == nil {
-            try? cache.save(ReviewTaskEntity.seedData(), forKey: "review_tasks")
-        }
-        if (try? cache.load([LearningRecordEntity].self, forKey: "learning_records")) == nil {
-            try? cache.save(LearningRecordEntity.seedData(), forKey: "learning_records")
-        }
-    }
-}

AIStudyApp/AIStudyApp/Core/Storage/TokenStore.swift

@@ -1,51 +0,0 @@
-import Foundation
-
-protocol TokenStoreProtocol {
-    func saveAccessToken(_ token: String) throws
-    func getAccessToken() throws -> String?
-    func saveRefreshToken(_ token: String) throws
-    func getRefreshToken() throws -> String?
-    func clearAll() throws
-}
-
-final class TokenStore: TokenStoreProtocol {
-    private let keychain: KeychainStore
-    private let accessTokenKey = "zx.accessToken"
-    private let refreshTokenKey = "zx.refreshToken"
-
-    init(keychain: KeychainStore = KeychainStore()) {
-        self.keychain = keychain
-    }
-
-    func saveAccessToken(_ token: String) throws {
-        guard let data = token.data(using: .utf8) else {
-            throw KeychainError.invalidData
-        }
-        try keychain.save(key: accessTokenKey, data: data)
-    }
-
-    func getAccessToken() throws -> String? {
-        guard let data = try keychain.load(key: accessTokenKey) else {
-            return nil
-        }
-        return String(data: data, encoding: .utf8)
-    }
-
-    func saveRefreshToken(_ token: String) throws {
-        guard let data = token.data(using: .utf8) else {
-            throw KeychainError.invalidData
-        }
-        try keychain.save(key: refreshTokenKey, data: data)
-    }
-
-    func getRefreshToken() throws -> String? {
-        guard let data = try keychain.load(key: refreshTokenKey) else {
-            return nil
-        }
-        return String(data: data, encoding: .utf8)
-    }
-
-    func clearAll() throws {
-        try keychain.clearAll(keys: [accessTokenKey, refreshTokenKey])
-    }
-}

AIStudyApp/AIStudyApp/Features/AI/AIChatPage.swift

@@ -1,36 +0,0 @@
-import SwiftUI
-
-// MARK: - AI Chat Page
-
-struct AIChatPage: View {
-    @StateObject private var vm = AIChatViewModel()
-
-    var body: some View {
-        ZStack { Color.zxBg0.ignoresSafeArea()
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "AI 对话", subtitle: "学习助手") {}
-                ScrollViewReader { proxy in ScrollView { VStack(spacing: 16) {
-                    ForEach(vm.messages) { m in
-                        HStack(alignment: .top, spacing: 8) {
-                            if m.role == .ai {
-                                Image(systemName: "brain.head.profile").foregroundColor(Color.zxPurple).frame(width: 28, height: 28).background(Color(hex: "#7C6EFA", opacity: 0.15)).clipShape(Circle())
-                            }
-                            Text(m.content).font(.system(size: 14)).foregroundColor(m.role == .user ? .white : Color.zxF007).padding(12).background(m.role == .user ? AnyView(ZXGradient.brandPurple) : AnyView(Color.zxFill004)).clipShape(RoundedRectangle(cornerRadius: 16))
-                            if m.role == .user { Circle().frame(width: 28, height: 28).foregroundColor(Color.zxPurpleBG(0.2)).overlay(Text("我").font(.system(size: 10, weight: .bold)).foregroundColor(Color.zxPurple)) }
-                        }
-                        .frame(maxWidth: .infinity, alignment: m.role == .user ? .trailing : .leading)
-                    }
-                    if vm.isSending {
-                        HStack {
-                            Image(systemName: "brain.head.profile").foregroundColor(Color.zxPurple).frame(width: 28, height: 28).background(Color(hex: "#7C6EFA", opacity: 0.15)).clipShape(Circle())
-                            ZXTypingIndicator()
-                            Spacer()
-                        }
-                    }
-                }.padding(.horizontal, 20).padding(.bottom, 100).id("bottom") }.scrollIndicators(.hidden)
-                    .onChange(of: vm.messages.count) { withAnimation { proxy.scrollTo("bottom") } } }
-                ZXAIInputBar(text: $vm.inputText, onSend: { vm.send() })
-            }
-        }.navigationBarHidden(true)
-    }
-}

AIStudyApp/AIStudyApp/Features/AI/AIFeedbackPage.swift

@@ -1,58 +0,0 @@
-import SwiftUI
-
-// MARK: - AI Feedback Page
-
-struct AIFeedbackPageView: View {
-    var body: some View {
-        ZStack { Color.zxBg0.ignoresSafeArea()
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "AI 反馈", subtitle: "今日思考 · 过拟合", trailing: {
-                    ZXIconBtn(icon: "bookmark", size: 36) {}
-                })
-                ScrollView { VStack(spacing: 16) {
-                    HStack(spacing: 20) {
-                        ZStack {
-                            Circle().trim(from: 0, to: 0.78).stroke(ZXGradient.brand, style: StrokeStyle(lineWidth: 10, lineCap: .round)).rotationEffect(.degrees(-90)).frame(width: 80, height: 80)
-                            VStack(spacing: 0) { Text("78").font(.system(size: 22, weight: .heavy)).foregroundColor(Color.zxPurple); Text("/ 100").font(.system(size: 9)).foregroundColor(Color.zxF04) }
-                        }
-                        VStack(alignment: .leading, spacing: 2) {
-                            Text("良好掌握").font(.system(size: 18, weight: .heavy)).foregroundColor(Color.zxF0)
-                            Text("理解核心概念，但缺少理论深度和解决方案").font(.system(size: 12)).foregroundColor(Color.zxF0045).lineSpacing(4)
-                        }
-                        Spacer()
-                    }
-                    .padding(20).background(ZXGradient.feedbackScore).clipShape(RoundedRectangle(cornerRadius: 20)).overlay(RoundedRectangle(cornerRadius: 20).stroke(Color(hex: "#7C6EFA", opacity: 0.2), lineWidth: 1))
-
-                    VStack(alignment: .leading, spacing: 8) {
-                        Text("你的回答").font(.system(size: 13, weight: .semibold)).foregroundColor(Color.zxF04)
-                        Text("过拟合就像一个学生只会「死记硬背」考题，而不是真正理解知识…").font(.system(size: 13)).foregroundColor(Color.zxF007).lineSpacing(6).padding(14).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder006, lineWidth: 1))
-                    }
-
-                    VStack(alignment: .leading, spacing: 8) {
-                        HStack(spacing: 8) { Image(systemName: "checkmark.circle.fill").foregroundColor(Color.zxGreen); Text("答对的部分").font(.system(size: 14, weight: .bold)).foregroundColor(Color.zxF0) }
-                        ForEach([("正确识别出过拟合是\"记住训练数据\"而非\"学习规律\""),("使用了死记硬背类比，方向正确且贴切")], id: \.self) { s in
-                            HStack(alignment: .top, spacing: 12) { Circle().fill(Color.zxGreen).frame(width: 6, height: 6).padding(.top, 6); Text(s).font(.system(size: 13)).foregroundColor(Color.zxF007).lineSpacing(4) }
-                                .padding(12).background(Color(hex: "#34D399", opacity: 0.07)).clipShape(RoundedRectangle(cornerRadius: 12)).overlay(RoundedRectangle(cornerRadius: 12).stroke(Color(hex: "#34D399", opacity: 0.18), lineWidth: 1))
-                        }
-                    }
-
-                    VStack(alignment: .leading, spacing: 10) {
-                        HStack(spacing: 8) { Image(systemName: "exclamationmark.triangle.fill").foregroundColor(Color.zxYellow); Text("需要完善").font(.system(size: 14, weight: .bold)).foregroundColor(Color.zxF0) }
-                        ForEach([("缺少对「方差」和「偏差」权衡的说明", "过拟合本质是高方差问题，可以提到偏差-方差权衡"),("未提及正则化、Dropout 等解决方案", "完整答案通常要说明\"如何解决\"")], id: \.0) { p, d in
-                            VStack(alignment: .leading, spacing: 4) { Text(p).font(.system(size: 13, weight: .bold)).foregroundColor(Color.zxF0); Text(d).font(.system(size: 12)).foregroundColor(Color.zxF05).lineSpacing(4) }
-                                .padding(14).frame(maxWidth: .infinity, alignment: .leading).background(Color(hex: "#F59E0B", opacity: 0.07)).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color(hex: "#F59E0B", opacity: 0.18), lineWidth: 1))
-                        }
-                    }
-
-                    VStack(alignment: .leading, spacing: 8) {
-                        Text("✨ 参考答案要点").font(.system(size: 13, weight: .bold)).foregroundColor(Color.zxAccent)
-                        Text("过拟合是模型复杂度过高导致的高方差问题。偏差-方差权衡是核心概念。解决方法包括：正则化、Dropout、数据增强、早停等。").font(.system(size: 13)).foregroundColor(Color.zxF007).lineSpacing(6)
-                    }.padding(16).background(Color(hex: "#7C6EFA", opacity: 0.07)).clipShape(RoundedRectangle(cornerRadius: 16)).overlay(RoundedRectangle(cornerRadius: 16).stroke(Color(hex: "#7C6EFA", opacity: 0.2), lineWidth: 1))
-
-                    Button {} label: { Label("加入待巩固，安排间隔复习", systemImage: "bolt.fill").font(.system(size: 14, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 52).background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius: 16)).shadow(color: Color(hex: "#7C6EFA", opacity: 0.3), radius: 24) }
-                    HStack(spacing: 12) { ZXOutlineBtn(text: "深入提问"); ZXOutlineBtn(text: "再来一题") }
-                }.padding(.horizontal, 20).padding(.bottom, 80) }.scrollIndicators(.hidden)
-            }
-        }.navigationBarHidden(true)
-    }
-}

AIStudyApp/AIStudyApp/Features/AI/AIHomeView.swift

@@ -1,11 +1,15 @@
 //
-//  AIHomeView.swift - Page 6: AI Home
+//  AIHomeView.swift - Page 6: AI Home + API status indicator
 //
 
 import SwiftUI
 
 struct AIHomeView: View {
     @State private var text = ""
+    @State private var serverStatus: ServerStatus = .checking
+    @State private var knowledgeCount = 0
+
+    enum ServerStatus { case checking, online, offline }
 
     var body: some View {
         ZStack {
@@ -14,14 +18,32 @@ struct AIHomeView: View {
                 .frame(width:200,height:200).offset(x:80,y:-80).allowsHitTesting(false)
 
             VStack(spacing:0){
-                // Header
                 HStack(alignment:.bottom){
                     VStack(alignment:.leading,spacing:2){
                         Text("今天").font(.system(size:12,weight:.medium)).foregroundColor(Color.zxF04)
                         Text("AI 学习助手").font(.system(size:20,weight:.heavy)).foregroundColor(Color.zxF0).tracking(-0.4)
                     }
                     Spacer()
-                    ZXIconBtn(icon:"arrow.clockwise",size:36){}
+
+                    // API 状态指示器
+                    HStack(spacing: 4) {
+                        Circle()
+                            .fill(serverStatus == .online ? Color.zxGreen
+                                  : serverStatus == .checking ? Color.zxYellow
+                                  : Color.zxRed)
+                            .frame(width: 6, height: 6)
+                        Text(serverStatus == .online ? "API \(knowledgeCount)"
+                             : serverStatus == .checking ? "检测中…"
+                             : "离线")
+                            .font(.system(size: 10, weight: .medium))
+                            .foregroundColor(serverStatus == .online ? Color.zxGreen
+                                             : serverStatus == .checking ? Color.zxYellow
+                                             : Color.zxF03)
+                    }
+                    .padding(.horizontal, 8).padding(.vertical, 4)
+                    .background(Color.zxFill005).clipShape(Capsule())
+
+                    ZXIconBtn(icon:"arrow.clockwise",size:36){ Task { await checkServer() } }
                 }
                 .padding(.horizontal,20).padding(.top,ZXSpacing.statusBarH+16).padding(.bottom,12)
 
@@ -39,6 +61,20 @@ struct AIHomeView: View {
                 inputBar
             }
         }
+        .task { await checkServer() }
+    }
+
+    private func checkServer() async {
+        serverStatus = .checking
+        do {
+            let resp: KnowledgeBaseListResponse = try await APIClient.shared.request("/knowledge-bases")
+            let count = resp.data?.count ?? 0
+            knowledgeCount = count
+            serverStatus = .online
+        } catch {
+            serverStatus = .offline
+            print("[API] 服务器检测失败: \(error.localizedDescription)")
+        }
     }
 
     private var thinkingCard: some View {
@@ -127,4 +163,48 @@ struct AIHomeView: View {
     }
 }
 
-// ZXQuickAction, ZXAIInteractionRow → Shared/Components/
+struct ZXQuickAction: View {
+    let emoji: String
+    let label: String
+    
+    var body: some View {
+        VStack(spacing:6){
+            Text(emoji).font(.system(size:22))
+            Text(label).font(.system(size:10,weight:.medium)).foregroundColor(Color.zxF03)
+                .multilineTextAlignment(.center).lineSpacing(2)
+        }
+        .frame(width:72,height:72)
+        .background(Color.zxFill005).clipShape(RoundedRectangle(cornerRadius:16))
+    }
+}
+
+struct ZXAIInteractionRow: View {
+    let tag: String
+    let bg: Color
+    let fg: Color
+    let emoji: String
+    let title: String
+    let time: String
+    let score: Int
+    let action: () -> Void
+    
+    var body: some View {
+        Button(action: action) {
+            HStack(spacing:12){
+                Text(emoji).font(.system(size:16))
+                    .frame(width:36,height:36).background(bg).clipShape(RoundedRectangle(cornerRadius:10))
+                VStack(alignment:.leading,spacing:4){
+                    HStack{
+                        Text(tag).font(.system(size:10,weight:.bold)).foregroundColor(fg)
+                        Text(time).font(.system(size:10)).foregroundColor(Color.zxF04)
+                    }
+                    Text(title).font(.system(size:13,weight:.medium)).foregroundColor(Color.zxF0)
+                }.frame(maxWidth:.infinity,alignment:.leading)
+                Text("\(score)").font(.system(size:12,weight:.heavy)).foregroundColor(Color.zxYellow)
+                    .frame(width:28,height:28).background(Color.zxYellowBG(0.1)).clipShape(RoundedRectangle(cornerRadius:8))
+            }
+            .padding(.horizontal,14).padding(.vertical,12)
+            .background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius:14))
+        }
+    }
+}

AIStudyApp/AIStudyApp/Features/AI/DailyThinkingPage.swift

@@ -1,52 +1,26 @@
-//
-//  DailyThinkingPage.swift - Page 14: Daily Thinking
-//
-
 import SwiftUI
 
 struct DailyThinkingPage: View {
-    @State private var answer = ""
+    @State private var answer = ""; @State private var submitted = false
-    @State private var submitted = false
-
     var body: some View {
         ZStack { Color.zxBg0.ignoresSafeArea()
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "今日思考", subtitle: "过拟合", onBack: nil, trailing: {
-                    ZXIconBtn(icon: "bookmark", size: 36) {}
-                })
             ScrollView { VStack(spacing: 16) {
                 VStack(alignment: .leading, spacing: 12) {
-                        HStack {
+                    HStack { Image(systemName:"sparkles").foregroundColor(Color.zxAccent); Text("解释\"注意力机制\"在 Transformer 中的作用").font(.system(size:15,weight:.bold)).foregroundColor(Color.zxF0) }
-                            Image(systemName: "sparkles").foregroundColor(Color.zxAccent)
+                    Text("AI会从三个方面评估你的回答：核心概念理解 · 理论深度 · 实际应用能力").font(.system(size:12)).foregroundColor(Color.zxF04)
-                            Text("解释\"注意力机制\"在 Transformer 中的作用").font(.system(size: 15, weight: .bold)).foregroundColor(Color.zxF0)
+                }.padding(16).background(ZXGradient.thinkingCard).clipShape(RoundedRectangle(cornerRadius:16))
-                        }
+                VStack(alignment:.leading,spacing:8){Text("你的回答").font(.system(size:13,weight:.semibold)).foregroundColor(Color.zxF04);TextEditor(text:$answer).font(.system(size:13)).foregroundColor(Color.zxF0).tint(Color.zxPurple).frame(minHeight:160).scrollContentBackground(.hidden).padding(12).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius:14)).overlay(RoundedRectangle(cornerRadius:14).stroke(Color.zxBorder008,lineWidth:1))}
-                        Text("AI会从三个方面评估你的回答：核心概念理解 · 理论深度 · 实际应用能力").font(.system(size: 12)).foregroundColor(Color.zxF04)
+                if !submitted{ NavigationLink(destination:AIFeedbackPageView()){ Text("提交回答，获取 AI 反馈").font(.system(size:14,weight:.bold)).foregroundColor(.white).frame(maxWidth:.infinity).frame(height:52).background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius:16)).shadow(color:Color(hex:"#7C6EFA",opacity:0.3),radius:24) } }
-                    }
+            }.padding(.horizontal,20).padding(.top,60+ZXSpacing.statusBarH).padding(.bottom,120) }.scrollIndicators(.hidden)
-                    .padding(16).background(ZXGradient.thinkingCard).clipShape(RoundedRectangle(cornerRadius: 16))
+        }.navigationBarTitleDisplayMode(.inline).toolbarBackground(.hidden,for:.navigationBar)
-
-                    VStack(alignment: .leading, spacing: 8) {
-                        Text("你的回答").font(.system(size: 13, weight: .semibold)).foregroundColor(Color.zxF04)
-                        TextEditor(text: $answer)
-                            .font(.system(size: 13)).foregroundColor(Color.zxF0).tint(Color.zxPurple)
-                            .frame(minHeight: 160).scrollContentBackground(.hidden)
-                            .padding(12).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1))
-                    }
-
-                    if !submitted {
-                        NavigationLink(destination: AIFeedbackPageView()) {
-                            Text("提交回答，获取 AI 反馈").font(.system(size: 14, weight: .bold)).foregroundColor(.white)
-                                .frame(maxWidth: .infinity).frame(height: 52)
-                                .background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius: 16))
-                                .shadow(color: Color(hex: "#7C6EFA", opacity: 0.3), radius: 24)
-                        }
-                    }
-                }.padding(.horizontal, 20).padding(.bottom, 120) }
-                .scrollIndicators(.hidden)
-            }
-        }
-        .navigationBarHidden(true)
     }
 }
-
+struct RecallTestPage: View { @State private var input = ""; var body: some View { ZStack{Color.zxBg0.ignoresSafeArea();ScrollView{VStack(spacing:16){Text("请回忆并写下你对「偏差-方差权衡」的理解").font(.system(size:14)).foregroundColor(Color.zxF04);TextEditor(text:$input).frame(minHeight:200).scrollContentBackground(.hidden).padding(12).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius:14)).overlay(RoundedRectangle(cornerRadius:14).stroke(Color.zxBorder008,lineWidth:1));Button{}label:{Text("提交").font(.system(size:14,weight:.bold)).foregroundColor(.white).frame(maxWidth:.infinity).frame(height:52).background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius:16))}}.padding(.horizontal,20).padding(.top,60+ZXSpacing.statusBarH).padding(.bottom,80)}.scrollIndicators(.hidden)}.navigationBarTitleDisplayMode(.inline).toolbarBackground(.hidden,for:.navigationBar)} }
-// Extracted pages: RecallTestPage, WeakPointsPage, AIFeedbackPageView, AIChatPage
+struct WeakPointsPage: View { var body: some View { ZStack{Color.zxBg0.ignoresSafeArea();ScrollView{VStack(spacing:12){ZXWeakRow(score:32,topic:"贝叶斯定理应用",lib:"机器学习",priority:"高");ZXWeakRow(score:41,topic:"正态分布性质",lib:"高等数学",priority:"高");ZXWeakRow(score:55,topic:"词根 spect- 相关词汇",lib:"英语词汇",priority:"中");ZXWeakRow(score:48,topic:"协方差与相关系数",lib:"机器学习",priority:"中");ZXWeakRow(score:36,topic:"梯度下降优化",lib:"机器学习",priority:"高")}.padding(.horizontal,20).padding(.top,60+ZXSpacing.statusBarH).padding(.bottom,80)}.scrollIndicators(.hidden)}.navigationBarTitleDisplayMode(.inline).toolbarBackground(.hidden,for:.navigationBar)} }
-// Shared components: ZXBackHeader, ZXOutlineBtn → Shared/Components/
+struct AIFeedbackPageView: View { var body: some View { ZStack{Color.zxBg0.ignoresSafeArea();ScrollView{VStack(spacing:16){ HStack(spacing:20){ ZStack{Circle().trim(from:0,to:0.78).stroke(ZXGradient.brand,style:StrokeStyle(lineWidth:10,lineCap:.round)).rotationEffect(.degrees(-90)).frame(width:80,height:80);VStack(spacing:0){Text("78").font(.system(size:22,weight:.heavy)).foregroundColor(Color.zxPurple);Text("/ 100").font(.system(size:9)).foregroundColor(Color.zxF04)}};VStack(alignment:.leading,spacing:2){Text("良好掌握").font(.system(size:18,weight:.heavy)).foregroundColor(Color.zxF0);Text("理解核心概念，但缺少理论深度和解决方案").font(.system(size:12)).foregroundColor(Color.zxF0045).lineSpacing(4)};Spacer() }.padding(20).background(ZXGradient.feedbackScore).clipShape(RoundedRectangle(cornerRadius:20)).overlay(RoundedRectangle(cornerRadius:20).stroke(Color(hex:"#7C6EFA",opacity:0.2),lineWidth:1))
+            VStack(alignment:.leading,spacing:8){Text("你的回答").font(.system(size:13,weight:.semibold)).foregroundColor(Color.zxF04);Text("过拟合就像一个学生只会「死记硬背」考题，而不是真正理解知识…").font(.system(size:13)).foregroundColor(Color.zxF007).lineSpacing(6).padding(14).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius:14)).overlay(RoundedRectangle(cornerRadius:14).stroke(Color.zxBorder006,lineWidth:1))}
+            VStack(alignment:.leading,spacing:8){HStack(spacing:8){Image(systemName:"checkmark.circle.fill").foregroundColor(Color.zxGreen);Text("答对的部分").font(.system(size:14,weight:.bold)).foregroundColor(Color.zxF0)};ForEach(["正确识别出过拟合是\"记住训练数据\"而非\"学习规律\"","使用了死记硬背类比，方向正确且贴切"],id:\.self){s in HStack(alignment:.top,spacing:12){Circle().fill(Color.zxGreen).frame(width:6,height:6).padding(.top,6);Text(s).font(.system(size:13)).foregroundColor(Color(hex:"#F0F0FF",opacity:0.75)).lineSpacing(4)}.padding(12).background(Color(hex:"#34D399",opacity:0.07)).clipShape(RoundedRectangle(cornerRadius:12)).overlay(RoundedRectangle(cornerRadius:12).stroke(Color(hex:"#34D399",opacity:0.18),lineWidth:1))}}
+            Button{}label:{Label("加入待巩固，安排间隔复习",systemImage:"bolt.fill").font(.system(size:14,weight:.bold)).foregroundColor(.white).frame(maxWidth:.infinity).frame(height:52).background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius:16)).shadow(color:Color(hex:"#7C6EFA",opacity:0.3),radius:24)};HStack(spacing:12){ZXOutlineBtn(text:"深入提问");ZXOutlineBtn(text:"再来一题")}
+        }.padding(.horizontal,20).padding(.top,60+ZXSpacing.statusBarH).padding(.bottom,80)}.scrollIndicators(.hidden)}.navigationBarTitleDisplayMode(.inline).toolbarBackground(.hidden,for:.navigationBar)} }
+struct ZXOutlineBtn: View {let text:String;var body: some View {Button{}label:{HStack(spacing:4){Text(text).font(.system(size:13));Image(systemName:"chevron.right").font(.system(size:14))}.foregroundColor(Color.zxF05).frame(maxWidth:.infinity).frame(height:44).background(Color.zxFill005).clipShape(RoundedRectangle(cornerRadius:14)).overlay(RoundedRectangle(cornerRadius:14).stroke(Color.zxBorder008,lineWidth:1))}}}
+struct AIChatPage: View { @State private var msg="";@State private var msgs:[(String,String)]=[("ai","你好！我是你的 AI 学习助手。")]; var body: some View { ZStack{Color.zxBg0.ignoresSafeArea();VStack(spacing:0){ScrollViewReader{proxy in ScrollView{VStack(spacing:16){ForEach(Array(msgs.enumerated()),id:\.offset){i,m in HStack(alignment:.top,spacing:8){if m.0=="ai"{Image(systemName:"brain.head.profile").foregroundColor(Color.zxPurple).frame(width:28,height:28).background(Color(hex:"#7C6EFA",opacity:0.15)).clipShape(Circle())};Text(m.1).font(.system(size:14)).foregroundColor(m.0=="user" ? .white:Color.zxF007).padding(12).background(m.0=="user" ? AnyView(ZXGradient.brandPurple):AnyView(Color.zxFill004)).clipShape(RoundedRectangle(cornerRadius:16));if m.0=="user"{Circle().frame(width:28,height:28).foregroundColor(Color.zxPurpleBG(0.2)).overlay(Text("我").font(.system(size:10,weight:.bold)).foregroundColor(Color.zxPurple))}}.frame(maxWidth:.infinity,alignment:m.0=="user" ? .trailing:.leading)}}.padding(.horizontal,20).padding(.top,60+ZXSpacing.statusBarH).padding(.bottom,100).id("bottom")}.scrollIndicators(.hidden).onChange(of:msgs.count){withAnimation{proxy.scrollTo("bottom")}}};ZXAIInputBar(text:$msg,onSend:{guard !msg.isEmpty else{return};msgs.append(("user",msg));msg="";DispatchQueue.main.asyncAfter(deadline:.now()+1){msgs.append(("ai","好的，我理解你的问题。需要我帮你制定学习计划吗？"))}})}}.navigationBarTitleDisplayMode(.inline).toolbarBackground(.hidden,for:.navigationBar)} }

AIStudyApp/AIStudyApp/Features/AI/RecallTestPage.swift

@@ -1,19 +0,0 @@
-import SwiftUI
-
-// MARK: - Recall Test Page
-
-struct RecallTestPage: View {
-    @State private var input = ""
-    var body: some View {
-        ZStack { Color.zxBg0.ignoresSafeArea()
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "回忆测试", subtitle: "机器学习 · 偏差-方差权衡") {}
-                ScrollView { VStack(spacing: 16) {
-                    Text("请回忆并写下你对「偏差-方差权衡」的理解").font(.system(size: 14)).foregroundColor(Color.zxF04)
-                    TextEditor(text: $input).frame(minHeight: 200).scrollContentBackground(.hidden).padding(12).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1))
-                    Button {} label: { Text("提交").font(.system(size: 14, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 52).background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius: 16)) }
-                }.padding(.horizontal, 20).padding(.bottom, 80) }.scrollIndicators(.hidden)
-            }
-        }.navigationBarHidden(true)
-    }
-}

AIStudyApp/AIStudyApp/Features/AI/ViewModels/AIChatViewModel.swift

@@ -1,36 +0,0 @@
-import SwiftUI
-import Combine
-
-struct ChatMessage: Identifiable {
-    let id = UUID()
-    let role: ChatRole
-    let content: String
-}
-
-enum ChatRole {
-    case user, ai
-}
-
-@MainActor
-final class AIChatViewModel: ObservableObject {
-    @Published var messages: [ChatMessage] = [
-        ChatMessage(role: .ai, content: "你好！我是你的 AI 学习助手。我可以帮你解答学习问题、分析薄弱点、制定复习计划。请告诉我你想学习什么？")
-    ]
-    @Published var inputText = ""
-    @Published var isSending = false
-
-    var canSend: Bool { !inputText.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty && !isSending }
-
-    func send() {
-        let text = inputText.trimmingCharacters(in: .whitespacesAndNewlines)
-        guard !text.isEmpty, !isSending else { return }
-        messages.append(ChatMessage(role: .user, content: text))
-        inputText = ""
-        isSending = true
-        Task {
-            try? await Task.sleep(nanoseconds: 1_000_000_000)
-            messages.append(ChatMessage(role: .ai, content: "好的，我理解你的问题。建议你从基础概念开始，逐步深入理解。需要我帮你制定具体的学习计划吗？"))
-            isSending = false
-        }
-    }
-}

AIStudyApp/AIStudyApp/Features/AI/WeakPointsPage.swift

@@ -1,20 +0,0 @@
-import SwiftUI
-
-// MARK: - Weak Points Page
-
-struct WeakPointsPage: View {
-    var body: some View {
-        ZStack { Color.zxBg0.ignoresSafeArea()
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "薄弱知识点", subtitle: "共 23 个待巩固") {}
-                ScrollView { VStack(spacing: 12) {
-                    ZXWeakRow(score: 32, topic: "贝叶斯定理应用", lib: "机器学习", priority: "高")
-                    ZXWeakRow(score: 41, topic: "正态分布性质", lib: "高等数学", priority: "高")
-                    ZXWeakRow(score: 55, topic: "词根 spect- 相关词汇", lib: "英语词汇", priority: "中")
-                    ZXWeakRow(score: 48, topic: "协方差与相关系数", lib: "机器学习", priority: "中")
-                    ZXWeakRow(score: 36, topic: "梯度下降优化", lib: "机器学习", priority: "高")
-                }.padding(.horizontal, 20).padding(.bottom, 80) }.scrollIndicators(.hidden)
-            }
-        }.navigationBarHidden(true)
-    }
-}

AIStudyApp/AIStudyApp/Features/Analysis/AnalysisHomeView.swift

@@ -1,7 +1,3 @@
-//
-//  AnalysisHomeView.swift - Page 9: Analysis Home
-//
-
 import SwiftUI
 
 struct AnalysisHomeView: View {
@@ -10,20 +6,12 @@ struct AnalysisHomeView: View {
             Color.zxBg0.ignoresSafeArea()
             VStack(spacing: 0) {
                 HStack {
-                    Text("学习分析")
+                    Text("学习分析").font(.system(size: 22, weight: .heavy)).foregroundColor(Color.zxF0).tracking(-0.5)
-                        .font(.system(size: 22, weight: .heavy)).foregroundColor(Color.zxF0).tracking(-0.5)
                     Spacer()
-                    HStack(spacing: 4) {
+                    HStack(spacing: 4) { Text("近 7 天").font(.system(size: 12)).foregroundColor(Color.zxF05); Image(systemName: "chevron.down").font(.system(size: 10)).foregroundColor(Color.zxF04) }
-                        Text("近 7 天").font(.system(size: 12)).foregroundColor(Color.zxF05)
+                        .padding(.horizontal, 12).padding(.vertical, 6).background(Color.zxFill005).clipShape(Capsule()).overlay(Capsule().stroke(Color.zxBorder008, lineWidth: 1))
-                        Image(systemName: "chevron.down").font(.system(size: 10)).foregroundColor(Color.zxF04)
-                    }
-                    .padding(.horizontal, 12).padding(.vertical, 6)
-                    .background(Color.zxFill005)
-                    .clipShape(Capsule())
-                    .overlay(Capsule().stroke(Color.zxBorder008, lineWidth: 1))
                 }
                 .padding(.horizontal, 20).padding(.top, ZXSpacing.statusBarH + 16).padding(.bottom, 12)
-
                 ScrollView {
                     VStack(spacing: 16) {
                         HStack(spacing: 12) {
@@ -32,41 +20,46 @@ struct AnalysisHomeView: View {
                             ZXStatBadge(icon: "exclamationmark.triangle.fill", label: "待巩固", value: "23", trend: "-5", color: Color.zxYellow)
                             ZXStatBadge(icon: "chart.line.uptrend.xyaxis", label: "连续天", value: "14", trend: "🔥", color: Color.zxGreen)
                         }
-
                         VStack(alignment: .leading, spacing: 16) {
-                            HStack {
+                            HStack { Text("掌握度趋势").font(.system(size: 14, weight: .bold)).foregroundColor(Color.zxF0); Spacer(); Text("↑ +8% 本周").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxGreen) }
-                                Text("掌握度趋势").font(.system(size: 14, weight: .bold)).foregroundColor(Color.zxF0)
-                                Spacer()
-                                Text("↑ +8% 本周").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxGreen)
-                            }
                             ZXChartView()
-                        }
+                        }.padding(16).background(Color.zxFill004).overlay(RoundedRectangle(cornerRadius: 20).stroke(Color.zxBorder006, lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 20))
-                        .padding(16)
-                        .background(Color.zxFill004)
-                        .overlay(RoundedRectangle(cornerRadius: 20).stroke(Color.zxBorder006, lineWidth: 1))
-                        .clipShape(RoundedRectangle(cornerRadius: 20))
-
                         VStack(alignment: .leading, spacing: 12) {
-                            HStack {
+                            HStack { HStack(spacing: 8) { Image(systemName: "exclamationmark.triangle.fill").font(.system(size: 14)).foregroundColor(Color.zxYellow); Text("薄弱知识点").font(.system(size: 15, weight: .bold)).foregroundColor(Color.zxF0) }; Spacer(); Text("全部 23 个").font(.system(size: 12)).foregroundColor(Color.zxPurple) }
-                                HStack(spacing: 8) {
-                                    Image(systemName: "exclamationmark.triangle.fill").font(.system(size: 14)).foregroundColor(Color.zxYellow)
-                                    Text("薄弱知识点").font(.system(size: 15, weight: .bold)).foregroundColor(Color.zxF0)
-                                }
-                                Spacer()
-                                Text("全部 23 个").font(.system(size: 12)).foregroundColor(Color.zxPurple)
-                            }
                             ZXWeakRow(score: 32, topic: "贝叶斯定理应用", lib: "机器学习", priority: "高")
                             ZXWeakRow(score: 41, topic: "正态分布性质", lib: "高等数学", priority: "高")
                             ZXWeakRow(score: 55, topic: "词根 spect- 相关词汇", lib: "英语词汇", priority: "中")
                         }
-                    }
+                    }.padding(.horizontal, 20).padding(.bottom, 120)
-                    .padding(.horizontal, 20)
+                }.scrollIndicators(.hidden)
-                    .padding(.bottom, 120)
-                }
-                .scrollIndicators(.hidden)
             }
         }
     }
 }
 
-// ZXStatBadge, ZXWeakRow, ZXChartView → Shared/Components/
+struct ZXStatBadge: View { let icon: String; let label: String; let value: String; let trend: String; let color: Color
+    var body: some View {
+        VStack(spacing: 3) {
+            Image(systemName: icon).font(.system(size: 14)).foregroundColor(color)
+            Text(value).font(.system(size: 16, weight: .heavy)).foregroundColor(Color.zxF0)
+            Text(label).font(.system(size: 9)).foregroundColor(Color.zxF04).multilineTextAlignment(.center)
+        }.frame(maxWidth: .infinity).frame(height: 72).padding(.vertical, 4).background(color.opacity(0.06)).overlay(RoundedRectangle(cornerRadius: 14).stroke(color.opacity(0.15), lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 14))
+    }
+}
+
+struct ZXChartView: View {
+    let data: [(String, CGFloat)] = [("一", 0.62), ("二", 0.65), ("三", 0.71), ("四", 0.68), ("五", 0.75), ("六", 0.79), ("今", 0.78)]
+    var body: some View {
+        VStack(spacing: 0) {
+            GeometryReader { g in
+                ZStack(alignment: .topLeading) {
+                    Path { path in let w = g.size.width / 7
+                        for (i, d) in data.enumerated() { let x = w * CGFloat(i) + w / 2; let y = (1 - d.1) * g.size.height
+                            if i == 0 { path.move(to: CGPoint(x: x, y: y)) } else { path.addLine(to: CGPoint(x: x, y: y)) } }
+                    }.stroke(Color.zxPurple, style: StrokeStyle(lineWidth: 2, lineCap: .round, lineJoin: .round))
+                }
+            }.frame(height: 100)
+            HStack(spacing: 0) { ForEach(data, id: \.0) { d in Text(d.0).font(.system(size: 9)).foregroundColor(Color(hex: "#F0F0FF", opacity: 0.35)).frame(maxWidth: .infinity) } }
+        }
+    }
+}

AIStudyApp/AIStudyApp/Features/Auth/ViewModels/LoginViewModel.swift

@@ -1,28 +0,0 @@
-import SwiftUI
-import Combine
-
-@MainActor
-final class LoginViewModel: ObservableObject {
-    @Published var isLoading = false
-    @Published var errorMessage: String?
-
-    let appSession: AppSession
-
-    init(appSession: AppSession) {
-        self.appSession = appSession
-    }
-
-    func loginWithApple() async {
-        isLoading = true
-        errorMessage = nil
-        await appSession.loginWithApple()
-        if let error = appSession.authError {
-            errorMessage = error
-        }
-        isLoading = false
-    }
-
-    var isAuthenticated: Bool {
-        appSession.isAuthenticated
-    }
-}

AIStudyApp/AIStudyApp/Features/Auth/ViewModels/WaitlistViewModel.swift

@@ -1,33 +0,0 @@
-import SwiftUI
-import Combine
-
-@MainActor
-final class WaitlistViewModel: ObservableObject {
-    @Published var email = ""
-    @Published var name = ""
-    @Published var isSubmitting = false
-    @Published var showSuccess = false
-    @Published var errorMessage: String?
-
-    var canSubmit: Bool {
-        !email.trimmingCharacters(in: .whitespaces).isEmpty && !isSubmitting
-    }
-
-    func submit() async {
-        guard canSubmit else { return }
-        isSubmitting = true
-        errorMessage = nil
-
-        let entry = WaitlistEntry(
-            email: email.trimmingCharacters(in: .whitespaces),
-            name: name.trimmingCharacters(in: .whitespaces).isEmpty ? nil : name.trimmingCharacters(in: .whitespaces)
-        )
-
-        // TODO: Replace with actual API call when backend is ready
-        // let _: EmptyResponse = try await apiClient.request(.waitlist(entry))
-        try? await Task.sleep(nanoseconds: 1_200_000_000)
-
-        showSuccess = true
-        isSubmitting = false
-    }
-}

AIStudyApp/AIStudyApp/Features/Auth/Views/LoginView.swift

@@ -1,136 +0,0 @@
-import SwiftUI
-
-struct LoginView: View {
-    @StateObject private var viewModel: LoginViewModel
-    let onLoginSuccess: (Bool) -> Void
-
-    init(appSession: AppSession, onLoginSuccess: @escaping (Bool) -> Void) {
-        _viewModel = StateObject(wrappedValue: LoginViewModel(appSession: appSession))
-        self.onLoginSuccess = onLoginSuccess
-    }
-
-    var body: some View {
-        ZStack {
-            ZXGradient.page.ignoresSafeArea()
-
-            Circle()
-                .fill(RadialGradient(
-                    colors: [Color(hex: "#7C6EFA", opacity: 0.08), .clear],
-                    center: .top,
-                    startRadius: 0,
-                    endRadius: 200
-                ))
-                .frame(width: 200, height: 200)
-                .offset(y: -80)
-                .allowsHitTesting(false)
-
-            VStack(spacing: 0) {
-                Spacer()
-
-                VStack(spacing: 24) {
-                    // Logo
-                    RoundedRectangle(cornerRadius: 28)
-                        .fill(LinearGradient(
-                            colors: [Color(hex: "#7C6EFA"), Color(hex: "#A78BFA"), Color(hex: "#F97316")],
-                            startPoint: .topLeading,
-                            endPoint: .bottomTrailing
-                        ))
-                        .frame(width: 80, height: 80)
-                        .overlay(
-                            Image(systemName: "brain.head.profile")
-                                .font(.system(size: 36))
-                                .foregroundColor(.white.opacity(0.8))
-                        )
-                        .shadow(color: Color(hex: "#7C6EFA", opacity: 0.4), radius: 32)
-
-                    // Brand
-                    VStack(spacing: 8) {
-                        Text("知习")
-                            .font(.system(size: 32, weight: .heavy))
-                            .tracking(-1)
-                            .foregroundStyle(
-                                LinearGradient(
-                                    colors: [Color(hex: "#A78BFA"), Color(hex: "#F0F0FF"), Color(hex: "#F97316")],
-                                    startPoint: .leading,
-                                    endPoint: .trailing
-                                )
-                            )
-                        Text("更懂你，更会学。")
-                            .font(.system(size: 14))
-                            .foregroundColor(Color.zxF05)
-                    }
-
-                    // Value prop
-                    Text("用 AI 把知识库、主动回忆和间隔复习连接起来，\n从\"看过\"走向\"真正学会\"。")
-                        .font(.system(size: 13))
-                        .foregroundColor(Color.zxF04)
-                        .multilineTextAlignment(.center)
-                        .lineSpacing(4)
-                        .padding(.horizontal, 20)
-
-                    // Error
-                    if let error = viewModel.errorMessage {
-                        Text(error)
-                            .font(.system(size: 12))
-                            .foregroundColor(Color.zxRed)
-                            .padding(.horizontal, 20)
-                            .multilineTextAlignment(.center)
-                    }
-
-                    // Apple Sign In Button
-                    Button {
-                        Task {
-                            await viewModel.loginWithApple()
-                            if viewModel.isAuthenticated {
-                                let needsOnboarding = viewModel.appSession.needsOnboarding
-                                onLoginSuccess(needsOnboarding)
-                            }
-                        }
-                    } label: {
-                        HStack(spacing: 10) {
-                            Image(systemName: "apple.logo")
-                                .font(.system(size: 20))
-                            Text("使用 Apple 继续")
-                                .font(.system(size: 16, weight: .semibold))
-                        }
-                        .foregroundColor(.black)
-                        .frame(maxWidth: .infinity)
-                        .frame(height: 52)
-                        .background(Color.white)
-                        .clipShape(RoundedRectangle(cornerRadius: 18))
-                    }
-                    .disabled(viewModel.isLoading)
-                    .padding(.horizontal, 20)
-
-                    // Loading
-                    if viewModel.isLoading {
-                        ProgressView()
-                            .tint(Color.zxF05)
-                    }
-
-                    #if DEBUG
-                    Button {
-                        onLoginSuccess(true)
-                    } label: {
-                        Text("跳过，进入演示模式")
-                            .font(.system(size: 13))
-                            .foregroundColor(Color.zxF035)
-                    }
-                    .padding(.top, 8)
-                    #endif
-                }
-
-                Spacer()
-
-                // Footer
-                VStack(spacing: 8) {
-                    Text("登录即代表你同意《用户服务协议》和《隐私政策》")
-                        .font(.system(size: 11))
-                        .foregroundColor(Color.zxF02)
-                }
-                .padding(.bottom, 40)
-            }
-        }
-    }
-}
-

AIStudyApp/AIStudyApp/Features/Auth/Views/WaitlistView.swift

@@ -1,134 +0,0 @@
-import SwiftUI
-
-struct WaitlistView: View {
-    @StateObject private var vm = WaitlistViewModel()
-    @Environment(\.dismiss) private var dismiss
-
-    var body: some View {
-        ZStack {
-            ZXGradient.page.ignoresSafeArea()
-
-            ScrollView {
-                VStack(spacing: 28) {
-                    headerSection
-                    if vm.showSuccess {
-                        successSection
-                    } else {
-                        formSection
-                    }
-                }
-                .padding(.horizontal, 20)
-                .padding(.bottom, 60)
-            }
-            .scrollIndicators(.hidden)
-        }
-    }
-
-    // MARK: - Header
-
-    private var headerSection: some View {
-        VStack(spacing: 12) {
-            Spacer().frame(height: ZXSpacing.statusBarH + 40)
-            Image(systemName: "envelope.badge.person.crop")
-                .font(.system(size: 48))
-                .foregroundColor(Color.zxPurple)
-            Text("加入内测名单")
-                .font(.system(size: 24, weight: .heavy))
-                .foregroundColor(Color.zxF0)
-                .tracking(-0.5)
-            Text("知习正在邀请首批用户参与内测。\n留下联系方式，我们会在开放后第一时间通知你。")
-                .font(.system(size: 14))
-                .foregroundColor(Color.zxF04)
-                .multilineTextAlignment(.center)
-                .lineSpacing(4)
-        }
-    }
-
-    // MARK: - Form
-
-    private var formSection: some View {
-        VStack(spacing: 16) {
-            VStack(alignment: .leading, spacing: 6) {
-                Text("邮箱").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5)
-                TextField("your@email.com", text: $vm.email)
-                    .keyboardType(.emailAddress)
-                    .textContentType(.emailAddress)
-                    .autocapitalization(.none)
-                    .font(.system(size: 15))
-                    .foregroundColor(Color.zxF0)
-                    .padding(14)
-                    .background(Color.zxFill005)
-                    .clipShape(RoundedRectangle(cornerRadius: 12))
-                    .overlay(RoundedRectangle(cornerRadius: 12).stroke(Color.zxBorder008, lineWidth: 1))
-            }
-
-            VStack(alignment: .leading, spacing: 6) {
-                Text("称呼（选填）").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5)
-                TextField("怎么称呼你", text: $vm.name)
-                    .textContentType(.name)
-                    .font(.system(size: 15))
-                    .foregroundColor(Color.zxF0)
-                    .padding(14)
-                    .background(Color.zxFill005)
-                    .clipShape(RoundedRectangle(cornerRadius: 12))
-                    .overlay(RoundedRectangle(cornerRadius: 12).stroke(Color.zxBorder008, lineWidth: 1))
-            }
-
-            if let error = vm.errorMessage {
-                Text(error)
-                    .font(.system(size: 12))
-                    .foregroundColor(.red)
-                    .padding(.top, 4)
-            }
-
-            Button {
-                Task { await vm.submit() }
-            } label: {
-                HStack(spacing: 8) {
-                    if vm.isSubmitting {
-                        ProgressView().tint(.white)
-                    }
-                    Text(vm.isSubmitting ? "提交中…" : "加入名单")
-                        .font(.system(size: 16, weight: .bold))
-                }
-                .foregroundColor(.white)
-                .frame(maxWidth: .infinity)
-                .frame(height: 52)
-                .background(vm.canSubmit ? ZXGradient.ctaButton : LinearGradient(colors: [Color.zxFill006, Color.zxFill006], startPoint: .leading, endPoint: .trailing))
-                .clipShape(RoundedRectangle(cornerRadius: 16))
-            }
-            .disabled(!vm.canSubmit)
-        }
-    }
-
-    // MARK: - Success
-
-    private var successSection: some View {
-        VStack(spacing: 20) {
-            Image(systemName: "checkmark.circle.fill")
-                .font(.system(size: 64))
-                .foregroundColor(Color.zxGreen)
-            Text("已加入名单")
-                .font(.system(size: 20, weight: .bold))
-                .foregroundColor(Color.zxF0)
-            Text("我们会通过邮件通知你最新进展。\n感谢你的关注！")
-                .font(.system(size: 14))
-                .foregroundColor(Color.zxF04)
-                .multilineTextAlignment(.center)
-                .lineSpacing(4)
-
-            Button {
-                dismiss()
-            } label: {
-                Text("返回")
-                    .font(.system(size: 16, weight: .bold))
-                    .foregroundColor(.white)
-                    .frame(maxWidth: .infinity)
-                    .frame(height: 52)
-                    .background(ZXGradient.ctaButton)
-                    .clipShape(RoundedRectangle(cornerRadius: 16))
-            }
-            .padding(.top, 12)
-        }
-    }
-}

AIStudyApp/AIStudyApp/Features/Feedback/FeedbackView.swift

@@ -1,138 +0,0 @@
-import SwiftUI
-
-// MARK: - Feedback Page
-
-struct FeedbackView: View {
-    @StateObject private var vm = FeedbackViewModel()
-    @Environment(\.dismiss) private var dismiss
-
-    var body: some View {
-        ZStack {
-            Color.zxBg0.ignoresSafeArea()
-
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "反馈", subtitle: nil) {}
-
-                ScrollView {
-                    VStack(spacing: 20) {
-                        // 分类选择
-                        VStack(alignment: .leading, spacing: 8) {
-                            Text("反馈类型")
-                                .font(.system(size: 12, weight: .semibold))
-                                .foregroundColor(Color.zxF035)
-
-                            HStack(spacing: 8) {
-                                ForEach(FeedbackCategory.allCases) { cat in
-                                    let sel = vm.selectedCategory == cat
-                                    Button {
-                                        vm.selectedCategory = cat
-                                    } label: {
-                                        VStack(spacing: 4) {
-                                            Image(systemName: cat.icon)
-                                                .font(.system(size: 16))
-                                            Text(cat.rawValue)
-                                                .font(.system(size: 11, weight: sel ? .semibold : .regular))
-                                        }
-                                        .foregroundColor(sel ? Color.zxPurple : Color.zxF05)
-                                        .frame(maxWidth: .infinity)
-                                        .frame(height: 56)
-                                        .background(sel ? Color.zxPurpleBG(0.12) : Color.zxFill003)
-                                        .clipShape(RoundedRectangle(cornerRadius: 14))
-                                        .overlay(
-                                            RoundedRectangle(cornerRadius: 14)
-                                                .stroke(sel ? Color.zxPurple.opacity(0.3) : Color.zxBorder006, lineWidth: 1)
-                                        )
-                                    }
-                                }
-                            }
-                        }
-
-                        // 内容输入
-                        VStack(alignment: .leading, spacing: 8) {
-                            Text("详细描述")
-                                .font(.system(size: 12, weight: .semibold))
-                                .foregroundColor(Color.zxF035)
-
-                            ZStack(alignment: .topLeading) {
-                                if vm.content.isEmpty {
-                                    Text("请描述你遇到的问题或建议…")
-                                        .font(.system(size: 14))
-                                        .foregroundColor(Color.zxF03)
-                                        .padding(.horizontal, 14)
-                                        .padding(.vertical, 14)
-                                }
-                                TextEditor(text: $vm.content)
-                                    .font(.system(size: 14))
-                                    .foregroundColor(Color.zxF0)
-                                    .tint(Color.zxPurple)
-                                    .frame(minHeight: 160)
-                                    .scrollContentBackground(.hidden)
-                                    .padding(10)
-                            }
-                            .background(Color.zxFill004)
-                            .clipShape(RoundedRectangle(cornerRadius: 14))
-                            .overlay(
-                                RoundedRectangle(cornerRadius: 14)
-                                    .stroke(Color.zxBorder008, lineWidth: 1)
-                            )
-                        }
-
-                        // 错误提示
-                        if let error = vm.errorMessage {
-                            ZXErrorBanner(message: error) {
-                                vm.errorMessage = nil
-                            }
-                        }
-
-                        // 提交按钮
-                        Button {
-                            vm.submit()
-                        } label: {
-                            HStack(spacing: 8) {
-                                if vm.isSubmitting {
-                                    ProgressView()
-                                        .tint(.white)
-                                }
-                                Text(vm.isSubmitting ? "提交中…" : "提交反馈")
-                                    .font(.system(size: 14, weight: .bold))
-                            }
-                            .foregroundColor(.white)
-                            .frame(maxWidth: .infinity)
-                            .frame(height: 52)
-                            .background(
-                                vm.isValid && !vm.isSubmitting
-                                    ? AnyView(ZXGradient.ctaPurple)
-                                    : AnyView(Color.zxFill005)
-                            )
-                            .clipShape(RoundedRectangle(cornerRadius: 16))
-                        }
-                        .disabled(!vm.isValid || vm.isSubmitting)
-                    }
-                    .padding(.horizontal, 20)
-                    .padding(.top, 20)
-                    .padding(.bottom, 80)
-                }
-                .scrollIndicators(.hidden)
-            }
-        }
-        .navigationBarHidden(true)
-        .alert("反馈已提交", isPresented: $vm.showSuccess) {
-            Button("好的") { dismiss() }
-        } message: {
-            Text("感谢你的反馈，我们会尽快处理。")
-        }
-    }
-}
-
-// MARK: - Category Icon
-
-private extension FeedbackCategory {
-    var icon: String {
-        switch self {
-        case .bug: return "ladybug.fill"
-        case .feature: return "lightbulb.fill"
-        case .content: return "text.badge.checkmark"
-        case .other: return "ellipsis.bubble.fill"
-        }
-    }
-}

AIStudyApp/AIStudyApp/Features/Feedback/FeedbackViewModel.swift

@@ -1,48 +0,0 @@
-import SwiftUI
-import Combine
-
-// MARK: - Feedback View Model
-
-@MainActor
-final class FeedbackViewModel: ObservableObject {
-    @Published var selectedCategory: FeedbackCategory = .feature
-    @Published var content = ""
-    @Published var isSubmitting = false
-    @Published var errorMessage: String?
-    @Published var showSuccess = false
-
-    private let feedbackService: FeedbackServiceProtocol?
-
-    init(feedbackService: FeedbackServiceProtocol? = nil) {
-        self.feedbackService = feedbackService
-    }
-
-    var isValid: Bool {
-        !content.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
-    }
-
-    func submit() {
-        guard isValid else { return }
-        isSubmitting = true
-        errorMessage = nil
-
-        Task {
-            do {
-                if let service = feedbackService {
-                    _ = try await service.submit(SubmitFeedbackRequest(
-                        category: selectedCategory.rawValue,
-                        content: content
-                    ))
-                } else {
-                    // 未注入 service 时模拟提交延迟
-                    try await Task.sleep(nanoseconds: 800_000_000)
-                }
-                isSubmitting = false
-                showSuccess = true
-            } catch {
-                isSubmitting = false
-                errorMessage = error.localizedDescription
-            }
-        }
-    }
-}

AIStudyApp/AIStudyApp/Features/Library/AddKnowledgePage.swift

@@ -1,19 +0,0 @@
-import SwiftUI
-
-// MARK: - Add Knowledge Page
-
-struct AddKnowledgePage: View {
-    @State private var title = ""; @State private var content = ""
-    var body: some View {
-        ZStack { Color.zxBg0.ignoresSafeArea()
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "添加知识点", subtitle: "机器学习") {}
-                ScrollView { VStack(spacing: 16) {
-                    VStack(alignment: .leading, spacing: 8) { Text("标题").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextField("输入知识点标题", text: $title).font(.system(size: 15)).tint(Color.zxPurple).padding(.horizontal, 16).frame(height: 52).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
-                    VStack(alignment: .leading, spacing: 8) { Text("内容").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextEditor(text: $content).frame(minHeight: 200).scrollContentBackground(.hidden).padding(12).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
-                    Button {} label: { Text("保存").font(.system(size: 14, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 52).background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius: 16)) }
-                }.padding(.horizontal, 20).padding(.bottom, 80) }.scrollIndicators(.hidden)
-            }
-        }.navigationBarHidden(true)
-    }
-}

AIStudyApp/AIStudyApp/Features/Library/CreateLibraryPage.swift

@@ -1,19 +0,0 @@
-import SwiftUI
-
-// MARK: - Create Library Page
-
-struct CreateLibraryPage: View {
-    @State private var name = ""; @State private var desc = ""
-    var body: some View {
-        ZStack { Color.zxBg0.ignoresSafeArea()
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "创建知识库", subtitle: nil) {}
-                ScrollView { VStack(spacing: 20) {
-                    VStack(alignment: .leading, spacing: 8) { Text("知识库名称").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextField("例如：机器学习", text: $name).font(.system(size: 15)).tint(Color.zxPurple).padding(.horizontal, 16).frame(height: 52).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
-                    VStack(alignment: .leading, spacing: 8) { Text("描述（可选）").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextField("简单描述这个知识库的内容", text: $desc).font(.system(size: 15)).tint(Color.zxPurple).padding(.horizontal, 16).frame(height: 52).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
-                    Button {} label: { Text("创建").font(.system(size: 14, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 52).background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius: 16)) }
-                }.padding(.horizontal, 20).padding(.top, 20) }.scrollIndicators(.hidden)
-            }
-        }.navigationBarHidden(true)
-    }
-}

AIStudyApp/AIStudyApp/Features/Library/EditKnowledgePage.swift

@@ -1,19 +0,0 @@
-import SwiftUI
-
-// MARK: - Edit Knowledge Page
-
-struct EditKnowledgePage: View {
-    @State private var title = "偏差-方差权衡"; @State private var content = "偏差衡量模型的预测与真实值之间的差异..."
-    var body: some View {
-        ZStack { Color.zxBg0.ignoresSafeArea()
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "编辑知识点", subtitle: nil) {}
-                ScrollView { VStack(spacing: 16) {
-                    VStack(alignment: .leading, spacing: 8) { Text("标题").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextField("", text: $title).font(.system(size: 15)).tint(Color.zxPurple).padding(.horizontal, 16).frame(height: 52).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
-                    VStack(alignment: .leading, spacing: 8) { Text("内容").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextEditor(text: $content).frame(minHeight: 200).scrollContentBackground(.hidden).padding(12).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
-                    Button {} label: { Text("保存修改").font(.system(size: 14, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 52).background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius: 16)) }
-                }.padding(.horizontal, 20).padding(.bottom, 80) }.scrollIndicators(.hidden)
-            }
-        }.navigationBarHidden(true)
-    }
-}

AIStudyApp/AIStudyApp/Features/Library/ImportPage.swift

@@ -1,19 +0,0 @@
-import SwiftUI
-
-// MARK: - Import Page
-
-struct ImportPage: View {
-    var body: some View {
-        ZStack { Color.zxBg0.ignoresSafeArea()
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "导入资料", subtitle: nil) {}
-                ScrollView { VStack(spacing: 12) {
-                    ZXImportOption(icon: "camera.fill", title: "拍照导入", desc: "拍下书本或笔记，AI 自动识别")
-                    ZXImportOption(icon: "doc.text.fill", title: "文件导入", desc: "支持 PDF、Word、Markdown")
-                    ZXImportOption(icon: "link", title: "链接导入", desc: "粘贴网页链接，自动提取内容")
-                    ZXImportOption(icon: "photo.on.rectangle", title: "相册导入", desc: "从相册选择截图或图片")
-                }.padding(.horizontal, 20).padding(.top, 16) }.scrollIndicators(.hidden)
-            }
-        }.navigationBarHidden(true)
-    }
-}

AIStudyApp/AIStudyApp/Features/Library/KnowledgeDetailPage.swift

@@ -1,17 +0,0 @@
-import SwiftUI
-
-// MARK: - Knowledge Detail Page
-
-struct KnowledgeDetailPage: View {
-    var body: some View {
-        ZStack { Color.zxBg0.ignoresSafeArea()
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "知识点详情", subtitle: "机器学习") { ZXIconBtn(icon: "pencil", size: 36) {} }
-                ScrollView { VStack(spacing: 16) {
-                    VStack(alignment: .leading, spacing: 8) { HStack { ZXChip(text: "算法", color: Color.zxPurple); ZXChip(text: "机器学习", color: Color.zxAccent); ZXChip(text: "需要复习", color: Color.zxYellow) }; Text("偏差-方差权衡").font(.system(size: 22, weight: .heavy)).foregroundColor(Color.zxF0); Text("偏差-方差权衡是机器学习模型选择的核心理念。").font(.system(size: 14)).foregroundColor(Color.zxF007).lineSpacing(6) }.padding(20).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 20)).overlay(RoundedRectangle(cornerRadius: 20).stroke(Color.zxBorder006, lineWidth: 1))
-                    HStack(spacing: 12) { Button {} label: { Label("开始复习", systemImage: "arrow.triangle.2.circlepath").font(.system(size: 14, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 44).background(ZXGradient.brandPurple).clipShape(RoundedRectangle(cornerRadius: 14)) }; Button {} label: { Label("费曼解释", systemImage: "mic.fill").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF05).frame(maxWidth: .infinity).frame(height: 44).background(Color.zxFill005).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) } }
-                }.padding(.horizontal, 20).padding(.bottom, 80) }.scrollIndicators(.hidden)
-            }
-        }.navigationBarHidden(true)
-    }
-}

AIStudyApp/AIStudyApp/Features/Library/LibraryDetailPage.swift

@@ -1,21 +0,0 @@
-import SwiftUI
-
-// MARK: - Library Detail Page
-
-struct LibraryDetailPage: View {
-    var body: some View {
-        ZStack { Color.zxBg0.ignoresSafeArea()
-            VStack(spacing: 0) {
-                ZXBackHeader(title: "机器学习", subtitle: "47 个知识点 · 掌握 72%") {
-                    HStack(spacing: 8) { ZXIconBtn(icon: "magnifyingglass", size: 36) {}; ZXIconBtn(icon: "plus", size: 36, branded: true) {} }
-                }
-                ScrollView { VStack(spacing: 12) {
-                    NavigationLink(destination: KnowledgeDetailPage()) { ZXCardRow(emoji: "📝", title: "偏差-方差权衡", desc: "模型复杂度 · 泛化误差", status: "已掌握", c: Color.zxGreen) }
-                    NavigationLink(destination: KnowledgeDetailPage()) { ZXCardRow(emoji: "📝", title: "梯度下降优化", desc: "SGD · Adam · 学习率", status: "学习中", c: Color.zxOrange) }
-                    NavigationLink(destination: KnowledgeDetailPage()) { ZXCardRow(emoji: "📝", title: "正则化方法", desc: "L1 · L2 · Dropout", status: "待复习", c: Color.zxYellow) }
-                    NavigationLink(destination: KnowledgeDetailPage()) { ZXCardRow(emoji: "📝", title: "过拟合与欠拟合", desc: "偏差方差 · 模型选择", status: "已掌握", c: Color.zxGreen) }
-                }.padding(.horizontal, 20).padding(.bottom, 80) }.scrollIndicators(.hidden)
-            }
-        }.navigationBarHidden(true)
-    }
-}

AIStudyApp/AIStudyApp/Features/Library/LibrarySubpages.swift

@@ -0,0 +1,81 @@
+import SwiftUI
+
+struct CreateLibraryPage: View {
+    @State private var name = ""; @State private var desc = ""
+    var body: some View {
+        ZStack { Color.zxBg0.ignoresSafeArea(); VStack(spacing: 0) {
+            ScrollView { VStack(spacing: 20) {
+                VStack(alignment: .leading, spacing: 8) { Text("知识库名称").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextField("例如：机器学习", text: $name).font(.system(size: 15)).tint(Color.zxPurple).padding(.horizontal, 16).frame(height: 52).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
+                VStack(alignment: .leading, spacing: 8) { Text("描述（可选）").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextField("简单描述这个知识库的内容", text: $desc).font(.system(size: 15)).tint(Color.zxPurple).padding(.horizontal, 16).frame(height: 52).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
+                Button {} label: { Text("创建").font(.system(size: 14, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 52).background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius: 16)) }
+            }.padding(.horizontal, 20).padding(.top, 20) }.scrollIndicators(.hidden) }
+        }.navigationBarHidden(true)}
+}
+
+struct LibraryDetailPage: View {
+    var body: some View {
+        ZStack { Color.zxBg0.ignoresSafeArea(); VStack(spacing: 0) {
+            ScrollView { VStack(spacing: 12) {
+                NavigationLink(destination: KnowledgeDetailPage()) { ZXCardRow(emoji: "📝", title: "偏差-方差权衡", desc: "模型复杂度 · 泛化误差", status: "已掌握", c: Color.zxGreen) }
+                NavigationLink(destination: KnowledgeDetailPage()) { ZXCardRow(emoji: "📝", title: "梯度下降优化", desc: "SGD · Adam · 学习率", status: "学习中", c: Color.zxOrange) }
+                NavigationLink(destination: KnowledgeDetailPage()) { ZXCardRow(emoji: "📝", title: "正则化方法", desc: "L1 · L2 · Dropout", status: "待复习", c: Color.zxYellow) }
+                NavigationLink(destination: KnowledgeDetailPage()) { ZXCardRow(emoji: "📝", title: "过拟合与欠拟合", desc: "偏差方差 · 模型选择", status: "已掌握", c: Color.zxGreen) }
+            }.padding(.horizontal, 20).padding(.bottom, 80) }.scrollIndicators(.hidden) }
+        }.navigationBarHidden(true)}
+}
+struct ZXCardRow: View { let emoji: String; let title: String; let desc: String; let status: String; let c: Color
+    var body: some View { HStack(spacing: 12) { Text(emoji).font(.system(size: 20)).frame(width: 40, height: 40).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 10)); VStack(alignment: .leading, spacing: 2) { Text(title).font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0); Text(desc).font(.system(size: 11)).foregroundColor(Color.zxF03) }; Spacer(); Text(status).font(.system(size: 10, weight: .semibold)).foregroundColor(c).padding(.horizontal, 8).padding(.vertical, 2).background(c.opacity(0.12)).clipShape(Capsule()) }
+        .padding(14).background(Color.zxFill003).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder006, lineWidth: 1)) }
+}
+
+struct AddKnowledgePage: View {
+    @State private var title = ""; @State private var content = ""
+    var body: some View {
+        ZStack { Color.zxBg0.ignoresSafeArea(); VStack(spacing: 0) {
+            ScrollView { VStack(spacing: 16) {
+                VStack(alignment: .leading, spacing: 8) { Text("标题").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextField("输入知识点标题", text: $title).font(.system(size: 15)).tint(Color.zxPurple).padding(.horizontal, 16).frame(height: 52).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
+                VStack(alignment: .leading, spacing: 8) { Text("内容").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextEditor(text: $content).frame(minHeight: 200).scrollContentBackground(.hidden).padding(12).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
+                Button {} label: { Text("保存").font(.system(size: 14, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 52).background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius: 16)) }
+            }.padding(.horizontal, 20).padding(.bottom, 80) }.scrollIndicators(.hidden) }
+        }.navigationBarHidden(true)}
+}
+
+struct KnowledgeDetailPage: View {
+    var body: some View {
+        ZStack { Color.zxBg0.ignoresSafeArea(); VStack(spacing: 0) {
+            ScrollView { VStack(spacing: 16) {
+                VStack(alignment: .leading, spacing: 8) { HStack { ZXChip(text: "算法", color: Color.zxPurple); ZXChip(text: "机器学习", color: Color.zxAccent); ZXChip(text: "需要复习", color: Color.zxYellow) }; Text("偏差-方差权衡").font(.system(size: 22, weight: .heavy)).foregroundColor(Color.zxF0); Text("偏差-方差权衡是机器学习模型选择的核心理念。").font(.system(size: 14)).foregroundColor(Color.zxF007).lineSpacing(6) }.padding(20).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 20)).overlay(RoundedRectangle(cornerRadius: 20).stroke(Color.zxBorder006, lineWidth: 1))
+                HStack(spacing: 12) { Button {} label: { Label("开始复习", systemImage: "arrow.triangle.2.circlepath").font(.system(size: 14, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 44).background(ZXGradient.brandPurple).clipShape(RoundedRectangle(cornerRadius: 14)) }; Button {} label: { Label("费曼解释", systemImage: "mic.fill").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF05).frame(maxWidth: .infinity).frame(height: 44).background(Color.zxFill005).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) } }
+            }.padding(.horizontal, 20).padding(.bottom, 80) }.scrollIndicators(.hidden) }
+        }.navigationBarHidden(true)}
+}
+struct ZXChip: View { let text: String; let color: Color
+    var body: some View { Text(text).font(.system(size: 10, weight: .semibold)).foregroundColor(color).padding(.horizontal, 8).padding(.vertical, 2).background(color.opacity(0.12)).clipShape(Capsule()) }
+}
+
+struct ImportPage: View {
+    var body: some View {
+        ZStack { Color.zxBg0.ignoresSafeArea(); VStack(spacing: 0) {
+            ScrollView { VStack(spacing: 12) {
+                ZXImportOption(icon: "camera.fill", title: "拍照导入", desc: "拍下书本或笔记，AI 自动识别")
+                ZXImportOption(icon: "doc.text.fill", title: "文件导入", desc: "支持 PDF、Word、Markdown")
+                ZXImportOption(icon: "link", title: "链接导入", desc: "粘贴网页链接，自动提取内容")
+                ZXImportOption(icon: "photo.on.rectangle", title: "相册导入", desc: "从相册选择截图或图片")
+            }.padding(.horizontal, 20).padding(.top, 16) }.scrollIndicators(.hidden) }
+        }.navigationBarHidden(true)}
+}
+struct ZXImportOption: View { let icon: String; let title: String; let desc: String
+    var body: some View { Button {} label: { HStack(spacing: 14) { Image(systemName: icon).font(.system(size: 22)).foregroundColor(Color.zxPurple).frame(width: 48, height: 48).background(Color.zxPurpleBG(0.1)).clipShape(RoundedRectangle(cornerRadius: 14)); VStack(alignment: .leading, spacing: 2) { Text(title).font(.system(size: 15, weight: .semibold)).foregroundColor(Color.zxF0); Text(desc).font(.system(size: 12)).foregroundColor(Color.zxF04) }; Spacer(); Image(systemName: "chevron.right").font(.system(size: 12)).foregroundColor(Color.zxF03) }.padding(16).background(Color.zxFill003).clipShape(RoundedRectangle(cornerRadius: 16)).overlay(RoundedRectangle(cornerRadius: 16).stroke(Color.zxBorder006, lineWidth: 1)) }.foregroundColor(.primary) }
+}
+
+struct EditKnowledgePage: View {
+    @State private var title = "偏差-方差权衡"; @State private var content = "偏差衡量模型的预测与真实值之间的差异..."
+    var body: some View {
+        ZStack { Color.zxBg0.ignoresSafeArea(); VStack(spacing: 0) {
+            ScrollView { VStack(spacing: 16) {
+                VStack(alignment: .leading, spacing: 8) { Text("标题").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextField("", text: $title).font(.system(size: 15)).tint(Color.zxPurple).padding(.horizontal, 16).frame(height: 52).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
+                VStack(alignment: .leading, spacing: 8) { Text("内容").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextEditor(text: $content).frame(minHeight: 200).scrollContentBackground(.hidden).padding(12).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
+                Button {} label: { Text("保存修改").font(.system(size: 14, weight: .bold)).foregroundColor(.white).frame(maxWidth: .infinity).frame(height: 52).background(ZXGradient.ctaPurple).clipShape(RoundedRectangle(cornerRadius: 16)) }
+            }.padding(.horizontal, 20).padding(.bottom, 80) }.scrollIndicators(.hidden) }
+        }.navigationBarHidden(true)}
+}

AIStudyApp/AIStudyApp/Features/Onboarding/GoalSetupPage.swift

@@ -1,85 +0,0 @@
-import SwiftUI
-
-// MARK: - Goal Setup Page
-
-struct GoalSetupPage: View {
-    let onComplete: (Bool) -> Void
-    @State private var selectedGoal = ""
-    let goals = [("🧑‍🎓","备考考试","公考、考研、考证等"),("💼","职业技能","编程、设计、产品等"),("📚","通识学习","扩充知识面"),("🎯","自定义","设定自己的目标")]
-    @State private var selectedMethod = ""
-    let methods = ["间隔回忆","费曼技巧","AI 分析"]
-    @State private var dailyMins = "30 分钟"
-    let times = ["15 分钟","30 分钟","1 小时","不限制"]
-    var body: some View {
-        ZStack { ZXGradient.page.ignoresSafeArea()
-            VStack(spacing: 0) { Spacer()
-                Text("设定你的学习目标").font(.system(size: 24, weight: .heavy)).tracking(-0.5).foregroundColor(Color.zxF0).padding(.bottom, 24)
-                ScrollView { VStack(spacing: 16) {
-                    VStack(alignment: .leading, spacing: 10) {
-                        Text("学习目标").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5)
-                        ForEach(goals, id: \.1) { g in let sel = selectedGoal == g.1
-                            Button { selectedGoal = g.1 } label: {
-                                HStack(spacing: 12) {
-                                    Text(g.0).font(.system(size: 22)).frame(width: 44, height: 44)
-                                        .background(sel ? Color(hex: "#7C6EFA", opacity: 0.15) : Color.zxFill005)
-                                        .clipShape(RoundedRectangle(cornerRadius: 12))
-                                    VStack(alignment: .leading, spacing: 2) {
-                                        Text(g.1).font(.system(size: 15, weight: .semibold)).foregroundColor(sel ? Color.zxPurple : Color.zxF0)
-                                        Text(g.2).font(.system(size: 12)).foregroundColor(Color.zxF04)
-                                    }
-                                    Spacer()
-                                    Circle().stroke(sel ? Color.zxPurple : Color.zxF02, lineWidth: 2)
-                                        .frame(width: 22, height: 22)
-                                        .overlay { if sel { Circle().fill(Color.zxPurple).frame(width: 12, height: 12) } }
-                                }
-                                .padding(14)
-                                .background(sel ? Color(hex: "#7C6EFA", opacity: 0.08) : Color.zxFill003)
-                                .overlay(RoundedRectangle(cornerRadius: 16).stroke(sel ? Color(hex: "#7C6EFA", opacity: 0.25) : Color.zxBorder006, lineWidth: 1))
-                                .clipShape(RoundedRectangle(cornerRadius: 16))
-                            }
-                            .foregroundColor(.primary)
-                        }
-                    }
-                    VStack(alignment: .leading, spacing: 10) {
-                        Text("学习方法").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5)
-                        HStack(spacing: 8) {
-                            ForEach(methods, id: \.self) { m in let sel = selectedMethod == m
-                                Button { selectedMethod = m } label: {
-                                    Text(m).font(.system(size: 13)).fontWeight(sel ? .semibold : .regular)
-                                        .foregroundColor(sel ? Color.zxPurple : Color.zxF05)
-                                        .padding(.horizontal, 16).padding(.vertical, 10)
-                                        .background(sel ? Color(hex: "#7C6EFA", opacity: 0.1) : Color.zxFill003)
-                                        .overlay(RoundedRectangle(cornerRadius: 20).stroke(sel ? Color(hex: "#7C6EFA", opacity: 0.25) : Color.zxBorder006, lineWidth: 1))
-                                        .clipShape(RoundedRectangle(cornerRadius: 20))
-                                }
-                                .foregroundColor(.primary)
-                            }
-                        }
-                    }
-                    VStack(alignment: .leading, spacing: 10) {
-                        Text("每日学习时间").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5)
-                        HStack(spacing: 8) {
-                            ForEach(times, id: \.self) { t in let sel = dailyMins == t
-                                Button { dailyMins = t } label: {
-                                    Text(t).font(.system(size: 12)).fontWeight(sel ? .semibold : .regular)
-                                        .foregroundColor(sel ? Color.zxPurple : Color.zxF05)
-                                        .frame(maxWidth: .infinity).frame(height: 40)
-                                        .background(sel ? Color(hex: "#7C6EFA", opacity: 0.1) : Color.zxFill003)
-                                        .overlay(RoundedRectangle(cornerRadius: 12).stroke(sel ? Color(hex: "#7C6EFA", opacity: 0.25) : Color.zxBorder006, lineWidth: 1))
-                                        .clipShape(RoundedRectangle(cornerRadius: 12))
-                                }
-                                .foregroundColor(.primary)
-                            }
-                        }
-                    }
-                } }.padding(.horizontal, 20)
-                Button { onComplete(true) } label: {
-                    Text("开始学习").font(.system(size: 16, weight: .bold)).foregroundColor(.white)
-                        .frame(maxWidth: .infinity).frame(height: 56)
-                        .background(ZXGradient.ctaButton).clipShape(RoundedRectangle(cornerRadius: 18))
-                        .shadow(color: Color(hex: "#7C6EFA", opacity: 0.4), radius: 20)
-                }.padding(.top, 24).padding(.bottom, 32).padding(.horizontal, 20)
-            }
-        }
-    }
-}

AIStudyApp/AIStudyApp/Features/Onboarding/OnboardingPage.swift

@@ -1,37 +0,0 @@
-import SwiftUI
-
-// MARK: - Onboarding Page
-
-struct OnboardingPage: View {
-    let onContinue: () -> Void
-    @State private var step = 0
-    let titles = ["输入知识", "主动输出", "AI 分析", "掌握知识"]
-    let descs = ["从任何地方收集并导入学习资料，构建你的专属知识库。", "通过间隔回忆和费曼解释法，将知识转化为长期记忆。", "AI 自动定位薄弱知识点，给出针对性的学习建议。", "系统性掌握每一个知识点，建立牢固的知识体系。"]
-    let icons = ["square.and.arrow.down", "brain.head.profile", "sparkle.magnifyingglass", "chart.line.uptrend.xyaxis"]
-    var body: some View {
-        ZStack { ZXGradient.page.ignoresSafeArea()
-            VStack(spacing: 0) { Spacer()
-                HStack(spacing: 6) {
-                    ForEach(0..<4, id: \.self) { i in
-                        RoundedRectangle(cornerRadius: 2)
-                            .fill(i == step ? AnyShapeStyle(ZXGradient.brand) : AnyShapeStyle(Color.zxFill01))
-                            .frame(width: i == step ? 24 : 8, height: 4)
-                    }
-                }
-                VStack(spacing: 12) {
-                    Text(titles[step]).font(.system(size: 24, weight: .heavy)).tracking(-0.5)
-                    Text(descs[step]).font(.system(size: 14)).foregroundColor(Color.zxF04).lineSpacing(4).multilineTextAlignment(.center)
-                }.padding(.top, 32).padding(.bottom, 40)
-                Button {
-                    if step < 3 { withAnimation { step += 1 } } else { onContinue() }
-                } label: {
-                    Text(step < 3 ? "下一步" : "开始使用").font(.system(size: 16, weight: .bold)).foregroundColor(.white)
-                        .frame(maxWidth: .infinity).frame(height: 56)
-                        .background(ZXGradient.ctaButton).clipShape(RoundedRectangle(cornerRadius: 18))
-                        .shadow(color: Color(hex: "#7C6EFA", opacity: 0.4), radius: 20)
-                }
-                Button("跳过") { onContinue() }.font(.system(size: 12)).foregroundColor(Color.zxF03).padding(.top, 12).padding(.bottom, 32)
-            }.padding(.horizontal, 20)
-        }
-    }
-}

AIStudyApp/AIStudyApp/Features/Onboarding/SplashPage.swift

@@ -1,34 +0,0 @@
-import SwiftUI
-
-// MARK: - Splash Page
-
-struct SplashPage: View {
-    let onFinish: () -> Void
-    var body: some View {
-        ZStack {
-            ZXGradient.splash.ignoresSafeArea()
-            Circle().fill(RadialGradient(colors: [Color(hex: "#7C6EFA", opacity: 0.25), .clear], center: .center, startRadius: 0, endRadius: 140)).frame(width: 280, height: 280).offset(y: -60).allowsHitTesting(false)
-            Circle().fill(RadialGradient(colors: [Color(hex: "#F97316", opacity: 0.15), .clear], center: .center, startRadius: 0, endRadius: 100)).frame(width: 200, height: 200).offset(y: 180).allowsHitTesting(false)
-            VStack(spacing: 0) {
-                RoundedRectangle(cornerRadius: 28)
-                    .fill(LinearGradient(colors: [Color(hex: "#7C6EFA"), Color(hex: "#A78BFA"), Color(hex: "#F97316")], startPoint: .topLeading, endPoint: .bottomTrailing))
-                    .frame(width: 96, height: 96)
-                    .overlay(Image(systemName: "brain.head.profile").font(.system(size: 44)).foregroundColor(.white.opacity(0.8)))
-                    .shadow(color: Color(hex: "#7C6EFA", opacity: 0.5), radius: 40)
-                    .padding(.bottom, 24)
-                Text("知习")
-                    .font(.system(size: 36, weight: .heavy)).tracking(-1)
-                    .foregroundStyle(LinearGradient(colors: [Color(hex: "#A78BFA"), Color(hex: "#F0F0FF"), Color(hex: "#F97316")], startPoint: .leading, endPoint: .trailing))
-                Text("Z H I X I").font(.system(size: 13, weight: .medium)).foregroundColor(Color.zxF04).tracking(3).padding(.top, 6)
-                Text("AI-first 系统化学习").font(.system(size: 14)).foregroundColor(Color.zxF0045).tracking(0.5).padding(.top, 24)
-            }
-            VStack { Spacer()
-                ZStack(alignment: .leading) {
-                    RoundedRectangle(cornerRadius: 2).fill(Color.zxFill01).frame(width: 40, height: 3)
-                    RoundedRectangle(cornerRadius: 2).fill(LinearGradient(colors: [.zxPurple, Color.zxOrange], startPoint: .leading, endPoint: .trailing)).frame(width: 24, height: 3)
-                }
-                .padding(.bottom, 80)
-            }
-        }
-    }
-}

AIStudyApp/AIStudyApp/Features/Onboarding/WelcomePage.swift

@@ -1,42 +0,0 @@
-import SwiftUI
-
-// MARK: - Welcome Page
-
-struct WelcomePage: View {
-    let onContinue: () -> Void; let onSkip: () -> Void
-    @State private var showWaitlist = false
-
-    var body: some View {
-        ZStack {
-            ZXGradient.page.ignoresSafeArea()
-            Circle().fill(RadialGradient(colors: [Color(hex: "#7C6EFA", opacity: 0.12), .clear], center: .topTrailing, startRadius: 0, endRadius: 260)).frame(width: 260, height: 260).offset(x: 80, y: -120).allowsHitTesting(false)
-            VStack { Spacer()
-                VStack(spacing: 14) {
-                    HStack(spacing: 6) { Image(systemName: "sparkles").font(.system(size: 12)); Text("AI 驱动").font(.system(size: 12, weight: .semibold)) }
-                        .foregroundColor(Color.zxAccent).padding(.horizontal, 12).padding(.vertical, 6).background(Color(hex: "#7C6EFA", opacity: 0.1)).clipShape(Capsule())
-                    Text("用 AI 重新定义\n你的学习方式").font(.system(size: 32, weight: .heavy)).tracking(-0.8).lineSpacing(4)
-                    VStack(spacing: 10) { FeatureRow(icon: "🧠", title: "主动回忆", desc: "基于间隔重复的智能复习"); FeatureRow(icon: "🎤", title: "费曼解释", desc: "用自己的话讲出来"); FeatureRow(icon: "📊", title: "AI 分析", desc: "发现知识薄弱点") }
-                }
-                VStack(spacing: 12) {
-                    Button { onContinue() } label: {
-                        Text("开始使用").font(.system(size: 16, weight: .bold)).foregroundColor(.white)
-                            .frame(maxWidth: .infinity).frame(height: 56)
-                            .background(ZXGradient.ctaButton).clipShape(RoundedRectangle(cornerRadius: 18))
-                            .shadow(color: Color(hex: "#7C6EFA", opacity: 0.4), radius: 20)
-                    }
-                    Button { showWaitlist = true } label: {
-                        Text("申请内测资格").font(.system(size: 14, weight: .medium))
-                            .foregroundColor(Color.zxAccent)
-                    }
-                    Button { onSkip() } label: {
-                        Text("已有账号？立即登录").font(.system(size: 14, weight: .medium))
-                            .foregroundColor(Color.zxF007)
-                    }.padding(.bottom, 32)
-                }
-            }.padding(.horizontal, 20)
-        }
-        .sheet(isPresented: $showWaitlist) {
-            WaitlistView()
-        }
-    }
-}

AIStudyApp/AIStudyApp/Features/Profile/ProfileView.swift

@@ -1,15 +1,6 @@
-//
-//  ProfileView.swift - Page 10: Profile
-//
-
 import SwiftUI
 
 struct ProfileView: View {
-    @StateObject private var colorSchemeManager = ColorSchemeManager.shared
-    @StateObject private var languageManager = LanguageManager.shared
-    @State private var showAppearancePicker = false
-    @State private var showLanguagePicker = false
-
     var body: some View {
         ZStack {
             ZXGradient.page.ignoresSafeArea()
@@ -20,76 +11,18 @@ struct ProfileView: View {
                         Spacer()
                         ZXIconBtn(icon: "bell", size: 36) {}
                         ZXIconBtn(icon: "gearshape", size: 36) {}
-                    }
+                    }.padding(.horizontal, 20).padding(.top, ZXSpacing.statusBarH + 16).padding(.bottom, 4)
-                    .padding(.horizontal, 20).padding(.top, ZXSpacing.statusBarH + 16).padding(.bottom, 4)
                     profileCard
                     VStack(spacing: 0) {
-                        NavigationLink(destination: LearningGoalSettingsView()) {
                         ZXProfileMenuRow(emoji: "🎯", title: "学习目标设置", desc: "调整你的学习目标")
-                        }
-                        .foregroundColor(.primary)
-                        NavigationLink(destination: ReviewReminderSettingsView()) {
                         ZXProfileMenuRow(emoji: "🔔", title: "复习提醒", desc: "间隔复习通知设置")
-                        }
-                        .foregroundColor(.primary)
-                        NavigationLink(destination: LearningReportView()) {
                         ZXProfileMenuRow(emoji: "📊", title: "学习报告", desc: "周报 · 月报 · 成就")
-                        }
-                        .foregroundColor(.primary)
-                        NavigationLink(destination: LearningMethodPreferencesView()) {
                         ZXProfileMenuRow(emoji: "🧩", title: "学习方法偏好", desc: "回忆 · 费曼 · 间隔")
-                        }
-                        .foregroundColor(.primary)
-                        NavigationLink(destination: DataSyncSettingsView()) {
                         ZXProfileMenuRow(emoji: "☁️", title: "数据同步与备份", desc: "云端同步设置")
-                        }
+                    }.background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 20)).overlay(RoundedRectangle(cornerRadius: 20).stroke(Color.zxBorder006, lineWidth: 1))
-                        .foregroundColor(.primary)
-                        NavigationLink(destination: FeedbackView()) {
-                            ZXProfileMenuRow(emoji: "💬", title: "反馈", desc: "问题报告 · 功能建议")
-                        }
-                        .foregroundColor(.primary)
-                    }
-                    .background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 20))
-                    .overlay(RoundedRectangle(cornerRadius: 20).stroke(Color.zxBorder006, lineWidth: 1))
-                    // 设置
-                    VStack(spacing: 0) {
-                        Button {
-                            showLanguagePicker = true
-                        } label: {
-                            ZXProfileMenuRow(emoji: "🌐", title: "语言", desc: languageManager.current.displayName)
-                        }
-                        .buttonStyle(.plain)
-                        .confirmationDialog("语言", isPresented: $showLanguagePicker) {
-                            ForEach(LanguageManager.shared.supported) { lang in
-                                Button(lang.displayName) {
-                                    languageManager.current = lang
-                                }
-                            }
-                            Button("取消", role: .cancel) {}
-                        }
-                        Button {
-                            showAppearancePicker = true
-                        } label: {
-                            ZXProfileMenuRow(emoji: "🌓", title: "外观", desc: colorSchemeManager.current.displayName)
-                        }
-                        .buttonStyle(.plain)
-                        .confirmationDialog("外观", isPresented: $showAppearancePicker) {
-                            ForEach(AppColorScheme.allCases) { scheme in
-                                Button(scheme.displayName) {
-                                    colorSchemeManager.current = scheme
-                                }
-                            }
-                            Button("取消", role: .cancel) {}
-                        }
-                    }
-                    .background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 20))
-                    .overlay(RoundedRectangle(cornerRadius: 20).stroke(Color.zxBorder006, lineWidth: 1))
-
                     achievementsSection.padding(.bottom, 120)
-                }
+                }.padding(.horizontal, 20)
-                .padding(.horizontal, 20)
+            }.scrollIndicators(.hidden)
-            }
-            .scrollIndicators(.hidden)
         }
     }
     private var profileCard: some View {
@@ -100,8 +33,7 @@ struct ProfileView: View {
                 Spacer(); Image(systemName: "chevron.right").font(.system(size: 14)).foregroundColor(Color.zxF03)
             }
             HStack(spacing: 0) { ZXProfileStat(value: "14", label: "连续天", color: Color.zxOrange); ZXProfileStat(value: "47", label: "知识点", color: Color.zxPurple); ZXProfileStat(value: "1,240", label: "积分", color: Color.zxTeal) }
-        }
+        }.padding(20).background(ZXGradient.profileCard).overlay(RoundedRectangle(cornerRadius: 20).stroke(Color(hex: "#7C6EFA", opacity: 0.2), lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 20))
-        .padding(20).background(ZXGradient.profileCard).overlay(RoundedRectangle(cornerRadius: 20).stroke(Color(hex: "#7C6EFA", opacity: 0.2), lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 20))
     }
     private var achievementsSection: some View {
         VStack(alignment: .leading, spacing: 12) {
@@ -110,4 +42,12 @@ struct ProfileView: View {
         }
     }
 }
-// ZXProfileStat, ZXProfileMenuRow, ZXAchievementBadge → Shared/Components/
+struct ZXProfileStat: View { let v: String; let l: String; let c: Color; var body: some View { VStack(spacing: 2) { Text(v).font(.system(size: 18, weight: .bold)).foregroundColor(c); Text(l).font(.system(size: 11)).foregroundColor(Color.zxF04) }.frame(maxWidth: .infinity) }
+    init(value: String, label: String, color: Color) { self.v = value; self.l = label; self.c = color }
+}
+struct ZXProfileMenuRow: View { let emoji: String; let title: String; let desc: String
+    var body: some View { HStack(spacing: 12) { Text(emoji).font(.system(size: 20)).frame(width: 36, height: 36).background(Color.zxFill006).clipShape(RoundedRectangle(cornerRadius: 10)); VStack(alignment: .leading, spacing: 2) { Text(title).font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0); Text(desc).font(.system(size: 11)).foregroundColor(Color.zxF03) }; Spacer(); Image(systemName: "chevron.right").font(.system(size: 12)).foregroundColor(Color.zxF03) }.padding(.horizontal, 16).padding(.vertical, 14) }
+}
+struct ZXAchievementBadge: View { let emoji: String; let label: String; let color: Color
+    var body: some View { VStack(spacing: 6) { Text(emoji).font(.system(size: 24)).frame(width: 48, height: 48).background(color.opacity(0.12)).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(color.opacity(0.25), lineWidth: 1)); Text(label).font(.system(size: 10, weight: .semibold)).foregroundColor(Color.zxF04) }.frame(maxWidth: .infinity) }
+}

AIStudyApp/AIStudyApp/Features/Profile/SettingsPages.swift

@@ -1,275 +0,0 @@
-import SwiftUI
-
-// MARK: - Learning Goal Settings
-
-struct LearningGoalSettingsView: View {
-    @State private var selectedGoal = ""
-    @State private var dailyMins = "30 分钟"
-
-    var body: some View {
-        ZStack {
-            ZXGradient.page.ignoresSafeArea()
-            ScrollView {
-                VStack(alignment: .leading, spacing: 20) {
-                    ZXBackHeader(title: "学习目标设置")
-                    VStack(alignment: .leading, spacing: 10) {
-                        Text("学习目标").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5)
-                        ForEach([("🧑‍🎓", "备考考试"), ("💼", "职业技能"), ("📚", "通识学习"), ("🎯", "自定义")], id: \.1) { emoji, title in
-                            let sel = selectedGoal == title
-                            Button {
-                                selectedGoal = title
-                            } label: {
-                                HStack(spacing: 12) {
-                                    Text(emoji).font(.system(size: 22)).frame(width: 44, height: 44)
-                                        .background(sel ? Color.zxPurpleBG(0.15) : Color.zxFill005)
-                                        .clipShape(RoundedRectangle(cornerRadius: 12))
-                                    Text(title).font(.system(size: 15, weight: .semibold)).foregroundColor(sel ? Color.zxPurple : Color.zxF0)
-                                    Spacer()
-                                    Circle().stroke(sel ? Color.zxPurple : Color.zxF02, lineWidth: 2)
-                                        .frame(width: 22, height: 22)
-                                        .overlay { if sel { Circle().fill(Color.zxPurple).frame(width: 12, height: 12) } }
-                                }
-                                .padding(14)
-                                .background(sel ? Color.zxPurpleBG(0.08) : Color.zxFill003)
-                                .overlay(RoundedRectangle(cornerRadius: 16).stroke(sel ? Color.zxPurpleBG(0.25) : Color.zxBorder006, lineWidth: 1))
-                                .clipShape(RoundedRectangle(cornerRadius: 16))
-                            }
-                            .foregroundColor(.primary)
-                        }
-                    }
-                    VStack(alignment: .leading, spacing: 10) {
-                        Text("每日学习时间").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).tracking(0.5)
-                        HStack(spacing: 8) {
-                            ForEach(["15 分钟", "30 分钟", "1 小时", "不限制"], id: \.self) { t in
-                                let sel = dailyMins == t
-                                Button {
-                                    dailyMins = t
-                                } label: {
-                                    Text(t).font(.system(size: 12)).fontWeight(sel ? .semibold : .regular)
-                                        .foregroundColor(sel ? Color.zxPurple : Color.zxF05)
-                                        .frame(maxWidth: .infinity).frame(height: 40)
-                                        .background(sel ? Color.zxPurpleBG(0.1) : Color.zxFill003)
-                                        .overlay(RoundedRectangle(cornerRadius: 12).stroke(sel ? Color.zxPurpleBG(0.25) : Color.zxBorder006, lineWidth: 1))
-                                        .clipShape(RoundedRectangle(cornerRadius: 12))
-                                }
-                                .foregroundColor(.primary)
-                            }
-                        }
-                    }
-                }
-                .padding(.horizontal, 20)
-                .padding(.bottom, 120)
-            }
-            .scrollIndicators(.hidden)
-        }
-        .navigationBarHidden(true)
-    }
-}
-
-// MARK: - Review Reminder Settings
-
-struct ReviewReminderSettingsView: View {
-    @State private var reminderEnabled = true
-    @State private var reminderTime = Date()
-    @State private var intervalDays = 1
-
-    var body: some View {
-        ZStack {
-            ZXGradient.page.ignoresSafeArea()
-            ScrollView {
-                VStack(alignment: .leading, spacing: 20) {
-                    ZXBackHeader(title: "复习提醒")
-                    VStack(spacing: 0) {
-                        Toggle(isOn: $reminderEnabled) {
-                            VStack(alignment: .leading, spacing: 2) {
-                                Text("开启复习提醒").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0)
-                                Text("基于间隔重复算法，在最佳时间提醒你复习").font(.system(size: 12)).foregroundColor(Color.zxF04)
-                            }
-                        }
-                        .tint(Color.zxPurple)
-                        .padding(.horizontal, 16).padding(.vertical, 14)
-                        Divider().background(Color.zxBorder006)
-                        DatePicker("提醒时间", selection: $reminderTime, displayedComponents: .hourAndMinute)
-                            .font(.system(size: 14)).foregroundColor(Color.zxF0)
-                            .padding(.horizontal, 16).padding(.vertical, 14)
-                            .tint(Color.zxPurple)
-                        Divider().background(Color.zxBorder006)
-                        HStack {
-                            Text("间隔天数").font(.system(size: 14)).foregroundColor(Color.zxF0)
-                            Spacer()
-                            Stepper("每 \(intervalDays) 天", value: $intervalDays, in: 1...7)
-                                .font(.system(size: 14)).foregroundColor(Color.zxF05)
-                        }
-                        .padding(.horizontal, 16).padding(.vertical, 14)
-                    }
-                    .background(Color.zxFill004)
-                    .clipShape(RoundedRectangle(cornerRadius: 16))
-                    .overlay(RoundedRectangle(cornerRadius: 16).stroke(Color.zxBorder006, lineWidth: 1))
-                }
-                .padding(.horizontal, 20)
-                .padding(.bottom, 120)
-            }
-            .scrollIndicators(.hidden)
-        }
-        .navigationBarHidden(true)
-    }
-}
-
-// MARK: - Learning Report
-
-struct LearningReportView: View {
-    var body: some View {
-        ZStack {
-            ZXGradient.page.ignoresSafeArea()
-            ScrollView {
-                VStack(alignment: .leading, spacing: 20) {
-                    ZXBackHeader(title: "学习报告")
-                    VStack(spacing: 12) {
-                        ReportCard(period: "本周", studyDays: 5, totalMins: 320, newItems: 12, reviewed: 47)
-                        ReportCard(period: "本月", studyDays: 18, totalMins: 1240, newItems: 47, reviewed: 186)
-                    }
-                    VStack(alignment: .leading, spacing: 8) {
-                        Text("成就").font(.system(size: 15, weight: .bold)).foregroundColor(Color.zxF0)
-                        HStack(spacing: 8) {
-                            ZXAchievementBadge(emoji: "🔥", label: "连续 14 天", color: Color.zxOrange)
-                            ZXAchievementBadge(emoji: "🧠", label: "费曼达人", color: Color.zxPurple)
-                            ZXAchievementBadge(emoji: "📚", label: "知识收藏家", color: Color.zxTeal)
-                            ZXAchievementBadge(emoji: "⚡", label: "速学者", color: Color.zxYellow)
-                        }
-                    }
-                }
-                .padding(.horizontal, 20)
-                .padding(.bottom, 120)
-            }
-            .scrollIndicators(.hidden)
-        }
-        .navigationBarHidden(true)
-    }
-}
-
-private struct ReportCard: View {
-    let period: String; let studyDays: Int; let totalMins: Int; let newItems: Int; let reviewed: Int
-    var body: some View {
-        VStack(alignment: .leading, spacing: 12) {
-            Text(period).font(.system(size: 14, weight: .bold)).foregroundColor(Color.zxPurple)
-            HStack(spacing: 0) {
-                ReportStat(value: "\(studyDays)", label: "学习天")
-                ReportStat(value: "\(totalMins)", label: "分钟")
-                ReportStat(value: "\(newItems)", label: "新知识")
-                ReportStat(value: "\(reviewed)", label: "已复习")
-            }
-        }
-        .padding(16)
-        .background(Color.zxFill004)
-        .clipShape(RoundedRectangle(cornerRadius: 16))
-        .overlay(RoundedRectangle(cornerRadius: 16).stroke(Color.zxBorder006, lineWidth: 1))
-    }
-}
-
-private struct ReportStat: View {
-    let value: String; let label: String
-    var body: some View {
-        VStack(spacing: 2) {
-            Text(value).font(.system(size: 20, weight: .heavy)).foregroundColor(Color.zxF0)
-            Text(label).font(.system(size: 10)).foregroundColor(Color.zxF04)
-        }
-        .frame(maxWidth: .infinity)
-    }
-}
-
-// MARK: - Learning Method Preferences
-
-struct LearningMethodPreferencesView: View {
-    @State private var selectedMethods: Set<String> = ["间隔回忆", "费曼技巧"]
-
-    var body: some View {
-        ZStack {
-            ZXGradient.page.ignoresSafeArea()
-            ScrollView {
-                VStack(alignment: .leading, spacing: 20) {
-                    ZXBackHeader(title: "学习方法偏好")
-                    VStack(spacing: 0) {
-                        ForEach([
-                            ("间隔回忆", "基于遗忘曲线，在最佳时机提醒你复习"),
-                            ("费曼技巧", "用自己的语言重新解释知识，发现理解盲区"),
-                            ("AI 分析", "AI 自动定位薄弱知识点，给出针对性建议")
-                        ], id: \.0) { method, desc in
-                            let sel = selectedMethods.contains(method)
-                            Button {
-                                if sel { selectedMethods.remove(method) }
-                                else { selectedMethods.insert(method) }
-                            } label: {
-                                HStack(spacing: 12) {
-                                    VStack(alignment: .leading, spacing: 2) {
-                                        Text(method).font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0)
-                                        Text(desc).font(.system(size: 12)).foregroundColor(Color.zxF04)
-                                    }
-                                    Spacer()
-                                    Image(systemName: sel ? "checkmark.circle.fill" : "circle")
-                                        .font(.system(size: 22))
-                                        .foregroundColor(sel ? Color.zxPurple : Color.zxF02)
-                                }
-                                .padding(.horizontal, 16).padding(.vertical, 14)
-                            }
-                            .foregroundColor(.primary)
-                            if method != "AI 分析" {
-                                Divider().background(Color.zxBorder006)
-                            }
-                        }
-                    }
-                    .background(Color.zxFill004)
-                    .clipShape(RoundedRectangle(cornerRadius: 16))
-                    .overlay(RoundedRectangle(cornerRadius: 16).stroke(Color.zxBorder006, lineWidth: 1))
-                }
-                .padding(.horizontal, 20)
-                .padding(.bottom, 120)
-            }
-            .scrollIndicators(.hidden)
-        }
-        .navigationBarHidden(true)
-    }
-}
-
-// MARK: - Data Sync Settings
-
-struct DataSyncSettingsView: View {
-    @State private var iCloudEnabled = false
-    @State private var autoBackupEnabled = true
-
-    var body: some View {
-        ZStack {
-            ZXGradient.page.ignoresSafeArea()
-            ScrollView {
-                VStack(alignment: .leading, spacing: 20) {
-                    ZXBackHeader(title: "数据同步与备份")
-                    VStack(spacing: 0) {
-                        Toggle(isOn: $iCloudEnabled) {
-                            VStack(alignment: .leading, spacing: 2) {
-                                Text("iCloud 同步").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0)
-                                Text("在 Apple ID 关联的设备间同步学习数据").font(.system(size: 12)).foregroundColor(Color.zxF04)
-                            }
-                        }
-                        .tint(Color.zxPurple)
-                        .padding(.horizontal, 16).padding(.vertical, 14)
-                        Divider().background(Color.zxBorder006)
-                        Toggle(isOn: $autoBackupEnabled) {
-                            VStack(alignment: .leading, spacing: 2) {
-                                Text("自动备份").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0)
-                                Text("每日自动备份学习记录和知识库").font(.system(size: 12)).foregroundColor(Color.zxF04)
-                            }
-                        }
-                        .tint(Color.zxPurple)
-                        .padding(.horizontal, 16).padding(.vertical, 14)
-                    }
-                    .background(Color.zxFill004)
-                    .clipShape(RoundedRectangle(cornerRadius: 16))
-                    .overlay(RoundedRectangle(cornerRadius: 16).stroke(Color.zxBorder006, lineWidth: 1))
-                }
-                .padding(.horizontal, 20)
-                .padding(.bottom, 120)
-            }
-            .scrollIndicators(.hidden)
-        }
-        .navigationBarHidden(true)
-    }
-}

AIStudyApp/AIStudyApp/Features/Review/ReviewPlanView.swift

@@ -1,68 +0,0 @@
-import SwiftUI
-
-struct ReviewPlanView: View {
-    @StateObject private var vm = ReviewPlanViewModel()
-
-    var body: some View {
-        ZStack {
-            ZXGradient.page.ignoresSafeArea()
-
-            VStack(spacing: 0) {
-                HStack {
-                    VStack(alignment: .leading, spacing: 2) {
-                        Text("复习计划")
-                            .font(.system(size: 22, weight: .heavy))
-                            .foregroundColor(Color.zxF0)
-                            .tracking(-0.5)
-                        Text("\(vm.totalCount) 个待复习")
-                            .font(.system(size: 12))
-                            .foregroundColor(Color.zxF04)
-                    }
-                    Spacer()
-                }
-                .padding(.horizontal, 20)
-                .padding(.top, ZXSpacing.statusBarH + 16)
-                .padding(.bottom, 16)
-
-                ScrollView {
-                    VStack(spacing: 20) {
-                        sectionView(title: "今天", icon: "sun.max.fill", tasks: vm.todayTasks, color: Color.zxOrange)
-                        sectionView(title: "明天", icon: "sunrise.fill", tasks: vm.tomorrowTasks, color: Color.zxPurple)
-                        sectionView(title: "本周", icon: "calendar", tasks: vm.weekTasks, color: Color.zxTeal)
-                    }
-                    .padding(.horizontal, 20)
-                    .padding(.bottom, 120)
-                }
-                .scrollIndicators(.hidden)
-            }
-        }
-        .navigationBarHidden(true)
-    }
-
-    func sectionView(title: String, icon: String, tasks: [ReviewTaskEntity], color: Color) -> some View {
-        VStack(alignment: .leading, spacing: 12) {
-            HStack(spacing: 8) {
-                Image(systemName: icon)
-                    .font(.system(size: 14))
-                    .foregroundColor(color)
-                Text(title)
-                    .font(.system(size: 15, weight: .bold))
-                    .foregroundColor(Color.zxF0)
-                Spacer()
-                Text("\(tasks.count) 项")
-                    .font(.system(size: 12))
-                    .foregroundColor(Color.zxF04)
-            }
-
-            if tasks.isEmpty {
-                ZXEmptyView(icon: "checkmark.circle", title: "暂无复习任务", subtitle: "完成学习后 AI 会自动生成复习计划")
-            } else {
-                ForEach(tasks) { task in
-                    ReviewTaskRow(task: task) {
-                        vm.toggleTask(task)
-                    }
-                }
-            }
-        }
-    }
-}

AIStudyApp/AIStudyApp/Features/Review/ViewModels/ReviewPlanViewModel.swift

@@ -1,36 +0,0 @@
-import SwiftUI
-import Combine
-
-@MainActor
-final class ReviewPlanViewModel: ObservableObject {
-    private let persistence = PersistenceController.shared
-
-    @Published var todayTasks: [ReviewTaskEntity] = []
-    @Published var tomorrowTasks: [ReviewTaskEntity] = []
-    @Published var weekTasks: [ReviewTaskEntity] = []
-
-    var totalCount: Int { todayTasks.count + tomorrowTasks.count + weekTasks.count }
-
-    init() {
-        persistence.seedIfNeeded()
-        fetchAll()
-    }
-
-    func toggleTask(_ task: ReviewTaskEntity) {
-        let all = persistence.loadReviewTasks()
-        guard let i = all.firstIndex(where: { $0.id == task.id }) else { return }
-        var updated = all
-        let newStatus: ReviewTaskEntityStatus = task.statusEnum == .completed ? .pending : .completed
-        updated[i].statusEnum = newStatus
-        updated[i].completedAt = newStatus == .completed ? Date() : nil
-        persistence.saveReviewTasks(updated)
-        fetchAll()
-    }
-
-    private func fetchAll() {
-        let all = persistence.loadReviewTasks()
-        todayTasks = all.filter(\.isToday)
-        tomorrowTasks = all.filter(\.isTomorrow)
-        weekTasks = all.filter { $0.isThisWeek && !$0.isToday && !$0.isTomorrow }
-    }
-}

AIStudyApp/AIStudyApp/Features/Study/StudyHomeView.swift

@@ -1,187 +1,44 @@
 import SwiftUI
 
 struct StudyHomeView: View {
-    @StateObject private var vm = StudyHomeViewModel()
+    @State private var ts: [ZXSTask] = [
+        .init(t: "机器学习 - 回忆测试", tp: "回忆测试", c: Color.zxPurple, m: 10, d: true),
+        .init(t: "高数 - 间隔复习 8 题", tp: "间隔复习", c: Color.zxOrange, m: 15, d: true),
+        .init(t: "英语词汇 - 25 个待复习", tp: "词汇复习", c: Color.zxTeal, m: 8, d: false),
+        .init(t: "注意力机制 - 费曼解释", tp: "费曼练习", c: Color.zxAccent, m: 12, d: false),
+        .init(t: "产品设计 - 薄弱点复习", tp: "薄弱点", c: Color.zxYellow, m: 10, d: false),
+    ]
+    private let wb: [CGFloat] = [0.3, 0.7, 1.0, 0.4, 0.9, 0.6, 0.2]
+    private let dl = ["一","二","三","四","五","六","日"]
 
     var body: some View {
-        ZStack {
+        ZStack { ZXGradient.page.ignoresSafeArea()
-            ZXGradient.page.ignoresSafeArea()
+            ScrollView { VStack(spacing: 16) {
-            ScrollView {
+                HStack { VStack(alignment: .leading, spacing: 2) { Text("周四，1月16日").font(.system(size: 12, weight: .medium)).foregroundColor(Color.zxF04); Text("学习工作台").font(.system(size: 20, weight: .heavy)).foregroundColor(Color.zxF0).tracking(-0.4) }; Spacer()
-                VStack(spacing: 16) {
+                    HStack(spacing: 4) { Image(systemName: "flame.fill").font(.system(size: 14)).foregroundColor(Color.zxOrange); Text("14 天连续").font(.system(size: 13, weight: .bold)).foregroundColor(Color.zxOrange) }.padding(.horizontal, 12).padding(.vertical, 6).background(Color.zxOrangeBG(0.1)).clipShape(Capsule()).overlay(Capsule().stroke(Color(hex: "#F97316", opacity: 0.2), lineWidth: 1)) }
-                    headerRow
+                    .padding(.horizontal, 20).padding(.top, ZXSpacing.statusBarH + 16).padding(.bottom, 4)
-                    progressCard
+                pc
-                    taskSection
+                VStack(alignment: .leading, spacing: 12) { HStack { Text("今日任务").font(.system(size: 15, weight: .bold)).foregroundColor(Color.zxF0); Spacer(); HStack(spacing: 4) { Image(systemName: "calendar").font(.system(size: 12)).foregroundColor(Color.zxF04); Text("AI 自动排期").font(.system(size: 12)).foregroundColor(Color.zxF04) } }
-                    weeklyActivitySection
+                    ForEach($ts) { $t in ZXSTaskRow(task: t) { t.d.toggle() } } }
-                }
+                VStack(alignment: .leading, spacing: 14) { Text("本周学习活跃").font(.system(size: 15, weight: .bold)).foregroundColor(Color.zxF0)
-                .padding(.horizontal, 20)
+                    HStack(alignment: .bottom, spacing: 8) { ForEach(0..<7, id: \.self) { i in VStack(spacing: 8) { RoundedRectangle(cornerRadius: 6).fill(i == 6 ? Color.zxFill01 : Color(hex: "#7C6EFA", opacity: wb[i] * 0.9 + 0.1)).frame(height: wb[i] * 60); Text(dl[i]).font(.system(size: 10, weight: i == 2 ? .bold : .regular)).foregroundColor(i == 2 ? Color.zxPurple : Color.zxF03) }.frame(maxWidth: .infinity) } }
-                .padding(.bottom, 120)
+                    HStack { Text("总计 3.5 小时").font(.system(size: 11)).foregroundColor(Color.zxF03); Spacer(); Text("日均 30 分钟").font(.system(size: 11)).foregroundColor(Color.zxF03) } }
-            }
+                .padding(.bottom, 120) }
-            .scrollIndicators(.hidden)
+                .padding(.horizontal, 20) }
-        }
+                .scrollIndicators(.hidden) }
-    }
-
-    // MARK: - Header
-
-    private var headerRow: some View {
-        HStack {
-            VStack(alignment: .leading, spacing: 2) {
-                Text("周四，1月16日")
-                    .font(.system(size: 12, weight: .medium))
-                    .foregroundColor(Color.zxF04)
-                Text("学习工作台")
-                    .font(.system(size: 20, weight: .heavy))
-                    .foregroundColor(Color.zxF0)
-                    .tracking(-0.4)
-            }
-            Spacer()
-            HStack(spacing: 4) {
-                Image(systemName: "flame.fill")
-                    .font(.system(size: 14))
-                    .foregroundColor(Color.zxOrange)
-                Text("14 天连续")
-                    .font(.system(size: 13, weight: .bold))
-                    .foregroundColor(Color.zxOrange)
-            }
-            .padding(.horizontal, 12)
-            .padding(.vertical, 6)
-            .background(Color.zxOrangeBG(0.1))
-            .clipShape(Capsule())
-            .overlay(Capsule().stroke(Color(hex: "#F97316", opacity: 0.2), lineWidth: 1))
-        }
-        .padding(.horizontal, 20)
-        .padding(.top, ZXSpacing.statusBarH + 16)
-        .padding(.bottom, 4)
-    }
-
-    // MARK: - Progress Card
-
-    private var progressCard: some View {
-        let pct = vm.progress
-        return VStack(spacing: 12) {
-            HStack {
-                VStack(alignment: .leading, spacing: 2) {
-                    Text("今日进度")
-                        .font(.system(size: 13, weight: .medium))
-                        .foregroundColor(Color.zxF05)
-                    HStack(alignment: .lastTextBaseline, spacing: 6) {
-                        Text("\(vm.doneCount)")
-                            .font(.system(size: 26, weight: .black))
-                            .foregroundColor(Color.zxF0)
-                        Text("/ \(vm.totalCount)")
-                        Text("个任务")
-                            .font(.system(size: 14, weight: .medium))
-                            .foregroundColor(Color.zxF04)
-                    }
-                }
-                Spacer()
-                ZStack {
-                    Circle()
-                        .trim(from: 0, to: pct)
-                        .stroke(ZXGradient.brand, style: StrokeStyle(lineWidth: 8, lineCap: .round))
-                        .rotationEffect(.degrees(-90))
-                        .frame(width: 64, height: 64)
-                    Text("\(Int(pct * 100))%")
-                        .font(.system(size: 14, weight: .heavy))
-                        .foregroundColor(Color.zxPurple)
-                }
-            }
-            ZStack(alignment: .leading) {
-                RoundedRectangle(cornerRadius: 3)
-                    .fill(Color.zxFill008)
-                    .frame(height: 6)
-                RoundedRectangle(cornerRadius: 3)
-                    .fill(LinearGradient(colors: [Color.zxPurple, Color.zxAccent], startPoint: .leading, endPoint: .trailing))
-                    .frame(width: max(6, pct * (UIScreen.main.bounds.width - 72)), height: 6)
-            }
-            HStack {
-                VStack(alignment: .leading, spacing: 2) {
-                    Text("\(vm.doneMinutes) 分钟")
-                        .font(.system(size: 13, weight: .bold))
-                        .foregroundColor(Color.zxF0)
-                    Text("已学")
-                        .font(.system(size: 10))
-                        .foregroundColor(Color.zxF04)
-                }
-                Spacer()
-                VStack(spacing: 2) {
-                    Text("\(vm.remainingMinutes) 分钟")
-                        .font(.system(size: 13, weight: .bold))
-                        .foregroundColor(Color.zxF0)
-                    Text("剩余")
-                        .font(.system(size: 10))
-                        .foregroundColor(Color.zxF04)
-                }
-                Spacer()
-                VStack(alignment: .trailing, spacing: 2) {
-                    Text("+5 点")
-                        .font(.system(size: 13, weight: .bold))
-                        .foregroundColor(Color.zxF0)
-                    Text("掌握")
-                        .font(.system(size: 10))
-                        .foregroundColor(Color.zxF04)
-                }
-            }
-        }
-        .padding(16)
-        .background(ZXGradient.progressCard)
-        .overlay(RoundedRectangle(cornerRadius: 20).stroke(Color(hex: "#7C6EFA", opacity: 0.15), lineWidth: 1))
-        .clipShape(RoundedRectangle(cornerRadius: 20))
-    }
-
-    // MARK: - Task Section
-
-    private var taskSection: some View {
-        VStack(alignment: .leading, spacing: 12) {
-            HStack {
-                Text("今日任务")
-                    .font(.system(size: 15, weight: .bold))
-                    .foregroundColor(Color.zxF0)
-                Spacer()
-                HStack(spacing: 4) {
-                    Image(systemName: "calendar")
-                        .font(.system(size: 12))
-                        .foregroundColor(Color.zxF04)
-                    Text("AI 自动排期")
-                        .font(.system(size: 12))
-                        .foregroundColor(Color.zxF04)
-                }
-            }
-            ForEach(vm.tasks) { task in
-                ZXSTaskRow(task: task) { vm.toggleTask(task) }
-                    .transition(.opacity.combined(with: .offset(y: 8)))
-            }
-        }
-    }
-
-    // MARK: - Weekly Activity
-
-    private var weeklyActivitySection: some View {
-        VStack(alignment: .leading, spacing: 14) {
-            Text("本周学习活跃")
-                .font(.system(size: 15, weight: .bold))
-                .foregroundColor(Color.zxF0)
-            HStack(alignment: .bottom, spacing: 8) {
-                ForEach(0..<7, id: \.self) { i in
-                    VStack(spacing: 8) {
-                        RoundedRectangle(cornerRadius: 6)
-                            .fill(i == 6 ? Color.zxFill01 : Color(hex: "#7C6EFA", opacity: vm.weekActivity[i] * 0.9 + 0.1))
-                            .frame(height: vm.weekActivity[i] * 60)
-                        Text(vm.dayLabels[i])
-                            .font(.system(size: 10, weight: i == 2 ? .bold : .regular))
-                            .foregroundColor(i == 2 ? Color.zxPurple : Color.zxF03)
-                    }
-                    .frame(maxWidth: .infinity)
-                }
-            }
-            HStack {
-                Text("总计 \(vm.todayTotalMinutes / 60) 小时 \(vm.todayTotalMinutes % 60) 分钟")
-                    .font(.system(size: 11))
-                    .foregroundColor(Color.zxF03)
-                Spacer()
-                Text("日均 \(max(1, vm.todayTotalMinutes)) 分钟")
-                    .font(.system(size: 11))
-                    .foregroundColor(Color.zxF03)
-            }
-        }
     }
+    private var pc: some View { let dn = ts.filter(\.d).count; let pct = CGFloat(dn) / 5
+        return VStack(spacing: 12) { HStack { VStack(alignment: .leading, spacing: 2) { Text("今日进度").font(.system(size: 13, weight: .medium)).foregroundColor(Color.zxF05); HStack(alignment: .lastTextBaseline, spacing: 6) { Text("\(dn)").font(.system(size: 26, weight: .black)).foregroundColor(Color.zxF0); Text("/ 5"); Text("个任务").font(.system(size: 14, weight: .medium)).foregroundColor(Color.zxF04) } }; Spacer()
+            ZStack { Circle().trim(from: 0, to: pct).stroke(ZXGradient.brand, style: StrokeStyle(lineWidth: 8, lineCap: .round)).rotationEffect(.degrees(-90)).frame(width: 64, height: 64); Text("\(Int(pct * 100))%").font(.system(size: 14, weight: .heavy)).foregroundColor(Color.zxPurple) } }
+            ZStack(alignment: .leading) { RoundedRectangle(cornerRadius: 3).fill(Color.zxFill008).frame(height: 6); RoundedRectangle(cornerRadius: 3).fill(LinearGradient(colors: [Color.zxPurple, Color.zxAccent], startPoint: .leading, endPoint: .trailing)).frame(width: max(6, pct * (UIScreen.main.bounds.width - 72)), height: 6) }
+            HStack { VStack(alignment: .leading, spacing: 2) { Text("\(dn * 12) 分钟").font(.system(size: 13, weight: .bold)).foregroundColor(Color.zxF0); Text("已学").font(.system(size: 10)).foregroundColor(Color.zxF04) }; Spacer(); VStack(spacing: 2) { Text("\((5 - dn) * 11) 分钟").font(.system(size: 13, weight: .bold)).foregroundColor(Color.zxF0); Text("剩余").font(.system(size: 10)).foregroundColor(Color.zxF04) }; Spacer(); VStack(alignment: .trailing, spacing: 2) { Text("+5 点").font(.system(size: 13, weight: .bold)).foregroundColor(Color.zxF0); Text("掌握").font(.system(size: 10)).foregroundColor(Color.zxF04) } } }
+            .padding(16).background(ZXGradient.progressCard).overlay(RoundedRectangle(cornerRadius: 20).stroke(Color(hex: "#7C6EFA", opacity: 0.15), lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 20)) }
+}
+
+struct ZXSTask: Identifiable { let id = UUID(); let t: String; let tp: String; let c: Color; let m: Int; var d: Bool }
+struct ZXSTaskRow: View { let task: ZXSTask; var action: () -> Void
+    var body: some View { Button(action: action) { HStack(spacing: 12) { Image(systemName: task.d ? "checkmark.circle.fill" : "circle").font(.system(size: 20)).foregroundColor(task.d ? Color.zxGreen : Color.zxF02)
+        VStack(alignment: .leading, spacing: 4) { Text(task.t).font(.system(size: 13, weight: .semibold)).foregroundColor(task.d ? Color.zxF04 : Color.zxF0).strikethrough(task.d); HStack(spacing: 8) { Text(task.tp).font(.system(size: 10, weight: .semibold)).foregroundColor(task.c).padding(.horizontal, 6).padding(.vertical, 1).background(task.c.opacity(0.12)).clipShape(Capsule()); Text("约 \(task.m) 分钟").font(.system(size: 10)).foregroundColor(Color(hex:"#F0F0FF",opacity:0.35)) } }
+        Spacer(); if !task.d { Image(systemName: "play.fill").font(.system(size: 14)).foregroundColor(.white).frame(width: 32, height: 32).background(ZXGradient.brand).clipShape(RoundedRectangle(cornerRadius: 10)) } }
+        .padding(.horizontal, 16).padding(.vertical, 12).background(task.d ? Color.zxFill003 : Color.zxFill005).overlay(RoundedRectangle(cornerRadius: 14).stroke(task.d ? Color(hex: "#FFFFFF", opacity: 0.05) : Color.zxBorder008, lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 14)).opacity(task.d ? 0.6 : 1) }.foregroundColor(.primary) }
 }

AIStudyApp/AIStudyApp/Features/Study/ViewModels/StudyHomeViewModel.swift

@@ -1,54 +0,0 @@
-import SwiftUI
-import Combine
-
-@MainActor
-final class StudyHomeViewModel: ObservableObject {
-    private let persistence = PersistenceController.shared
-
-    @Published var tasks: [StudyTaskEntity] = []
-    @Published var records: [LearningRecordEntity] = []
-
-    let dayLabels = ["一", "二", "三", "四", "五", "六", "日"]
-
-    var weekActivity: [CGFloat] {
-        let calendar = Calendar.current
-        var mins: [Int: Int] = [:]
-        for r in records where calendar.isDate(r.completedAt, equalTo: Date(), toGranularity: .weekOfYear) {
-            let wd = calendar.component(.weekday, from: r.completedAt)
-            let idx = (wd + 5) % 7
-            mins[idx, default: 0] += r.durationMinutes
-        }
-        let maxMins = max(mins.values.max() ?? 1, 1)
-        return (0..<7).map { CGFloat(mins[$0] ?? 0) / CGFloat(maxMins) }
-    }
-
-    var doneCount: Int { tasks.filter(\.isDone).count }
-    var totalCount: Int { tasks.count }
-    var progress: CGFloat { totalCount > 0 ? CGFloat(doneCount) / CGFloat(totalCount) : 0 }
-    var doneMinutes: Int { tasks.filter(\.isDone).reduce(0) { $0 + $1.minutes } }
-    var remainingMinutes: Int { tasks.filter { !$0.isDone }.reduce(0) { $0 + $1.minutes } }
-    var todayTotalMinutes: Int { records.filter { Calendar.current.isDateInToday($0.completedAt) }.reduce(0) { $0 + $1.durationMinutes } }
-
-    init() {
-        persistence.seedIfNeeded()
-        tasks = persistence.loadTasks()
-        records = persistence.loadRecords()
-    }
-
-    func toggleTask(_ task: StudyTaskEntity) {
-        guard let i = tasks.firstIndex(where: { $0.id == task.id }) else { return }
-        tasks[i].isDone.toggle()
-        persistence.saveTasks(tasks)
-    }
-
-    func recordSession(lessonTitle: String, durationMinutes: Int, masteryScore: Int, weakPoints: [String]) {
-        let record = LearningRecordEntity(
-            lessonTitle: lessonTitle,
-            durationMinutes: durationMinutes,
-            masteryScore: masteryScore,
-            weakPoints: weakPoints
-        )
-        records.append(record)
-        persistence.saveRecords(records)
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/FeatureRow.swift

@@ -1,21 +0,0 @@
-import SwiftUI
-
-// MARK: - Feature Row
-
-struct FeatureRow: View {
-    let icon: String; let title: String; let desc: String
-    var body: some View {
-        HStack(spacing: 14) {
-            Text(icon).font(.system(size: 20)).frame(width: 40, height: 40)
-                .background(Color(hex: "#7C6EFA", opacity: 0.1)).clipShape(RoundedRectangle(cornerRadius: 12))
-            VStack(alignment: .leading, spacing: 2) {
-                Text(title).font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0)
-                Text(desc).font(.system(size: 12)).foregroundColor(Color.zxF04)
-            }
-        }
-        .padding(.horizontal, 16).padding(.vertical, 14)
-        .background(Color.zxFill003)
-        .overlay(RoundedRectangle(cornerRadius: 16).stroke(Color.zxBorder006, lineWidth: 1))
-        .clipShape(RoundedRectangle(cornerRadius: 16))
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ReviewTaskRow.swift

@@ -1,78 +0,0 @@
-import SwiftUI
-
-struct ReviewTaskRow: View {
-    let task: ReviewTaskEntity
-    let onToggle: () -> Void
-
-    var body: some View {
-        HStack(spacing: 12) {
-            Button(action: onToggle) {
-                Image(systemName: task.statusEnum == .completed ? "checkmark.circle.fill" : "circle")
-                    .font(.system(size: 20))
-                    .foregroundColor(task.statusEnum == .completed ? Color.zxGreen : Color.zxF02)
-            }
-
-            VStack(alignment: .leading, spacing: 4) {
-                Text(task.lessonId)
-                    .font(.system(size: 13, weight: .semibold))
-                    .foregroundColor(task.statusEnum == .completed ? Color.zxF04 : Color.zxF0)
-
-                HStack(spacing: 8) {
-                    reviewTypeTag(task.reviewTypeEnum)
-                    Text("第 1 次复习")
-                        .font(.system(size: 10))
-                        .foregroundColor(Color.zxF035)
-                }
-            }
-
-            Spacer()
-
-            if task.statusEnum == .pending {
-                Image(systemName: "play.fill")
-                    .font(.system(size: 14))
-                    .foregroundColor(.white)
-                    .frame(width: 32, height: 32)
-                    .background(ZXGradient.brand)
-                    .clipShape(RoundedRectangle(cornerRadius: 10))
-            }
-        }
-        .padding(.horizontal, 16)
-        .padding(.vertical, 12)
-        .background(Color.zxFill003)
-        .overlay(
-            RoundedRectangle(cornerRadius: 14)
-                .stroke(Color.zxBorder006, lineWidth: 1)
-        )
-        .clipShape(RoundedRectangle(cornerRadius: 14))
-        .opacity(task.statusEnum == .completed ? 0.6 : 1)
-        .accessibilityLabel("复习任务：\(task.lessonId)，\(reviewTypeLabel(task.reviewTypeEnum))")
-        .accessibilityHint(task.statusEnum == .completed ? "已完成" : "双击开始复习")
-    }
-
-    private func reviewTypeLabel(_ type: ReviewTaskEntityType) -> String {
-        switch type {
-        case .spacedRepetition: return "间隔重复"
-        case .feynman: return "费曼技巧"
-        case .recall: return "主动回忆"
-        case .weakPoint: return "薄弱点巩固"
-        }
-    }
-
-    func reviewTypeTag(_ type: ReviewTaskEntityType) -> some View {
-        let config: (String, Color) = {
-            switch type {
-            case .spacedRepetition: return ("间隔重复", Color.zxPurple)
-            case .feynman: return ("费曼", Color.zxAccent)
-            case .recall: return ("回忆", Color.zxOrange)
-            case .weakPoint: return ("薄弱", Color.zxYellow)
-            }
-        }()
-        return Text(config.0)
-            .font(.system(size: 10, weight: .semibold))
-            .foregroundColor(config.1)
-            .padding(.horizontal, 6)
-            .padding(.vertical, 1)
-            .background(config.1.opacity(0.12))
-            .clipShape(Capsule())
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXAIInputBar.swift

@@ -1,28 +0,0 @@
-import SwiftUI
-
-// MARK: - AI Input Bar
-
-struct ZXAIInputBar: View {
-    @Binding var text: String
-    let onSend: () -> Void
-    var body: some View {
-        HStack(spacing: 10) {
-            Image(systemName: "sparkles").font(.system(size: 16)).foregroundColor(Color.zxPurple)
-            TextField("问 AI 任何学习问题…", text: $text).font(.system(size: 14)).tint(Color.zxPurple)
-                .accessibilityLabel("AI 对话输入")
-            Spacer()
-            Image(systemName: "mic.fill").font(.system(size: 18)).foregroundColor(Color.zxF03)
-                .accessibilityHidden(true)
-            Button(action: onSend) {
-                Image(systemName: "arrow.up").font(.system(size: 14, weight: .bold)).foregroundColor(.white)
-                    .frame(width: 30, height: 30).background(ZXGradient.brand).clipShape(RoundedRectangle(cornerRadius: 9))
-            }
-            .accessibilityLabel("发送消息")
-        }
-        .padding(.horizontal, 14).padding(.vertical, 10)
-        .background(.ultraThinMaterial).background(Color.zxFill004)
-        .overlay(RoundedRectangle(cornerRadius: 20).stroke(Color.zxBorder008, lineWidth: 1))
-        .clipShape(RoundedRectangle(cornerRadius: 20))
-        .padding(.horizontal, 20).padding(.bottom, 34)
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXAIInteractionRow.swift

@@ -1,34 +0,0 @@
-import SwiftUI
-
-// MARK: - AI Interaction Row
-
-struct ZXAIInteractionRow: View {
-    let tag: String; let bg: Color; let fg: Color; let emoji: String
-    let title: String; let time: String; let score: Int; let action: () -> Void
-    var body: some View {
-        Button(action: action) {
-            HStack(spacing: 12) {
-                Text(emoji).font(.system(size: 18)).frame(width: 40, height: 40)
-                    .background(bg).clipShape(RoundedRectangle(cornerRadius: 12))
-                VStack(alignment: .leading, spacing: 2) {
-                    HStack(spacing: 8) {
-                        Text(tag).font(.system(size: 10, weight: .bold)).foregroundColor(fg).tracking(0.3)
-                        Text(time).font(.system(size: 10)).foregroundColor(Color.zxF03)
-                    }
-                    Text(title).font(.system(size: 13, weight: .semibold))
-                        .foregroundColor(Color.zxF007).lineLimit(1)
-                }
-                Spacer()
-                ZXScoreBox(
-                    score: score,
-                    bg: score >= 80 ? Color.zxGreenBG(0.15) : score >= 60 ? Color.zxOrangeBG(0.15) : Color.zxRedBG(0.15),
-                    fg: score >= 80 ? Color.zxGreen : score >= 60 ? Color.zxOrange : Color.zxRed
-                )
-            }
-            .padding(.horizontal, 14).padding(.vertical, 12)
-            .background(Color.zxFill003)
-            .overlay(RoundedRectangle(cornerRadius: 16).stroke(Color.zxBorder006, lineWidth: 1))
-            .clipShape(RoundedRectangle(cornerRadius: 16))
-        }
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXAchievementBadge.swift

@@ -1,16 +0,0 @@
-import SwiftUI
-
-// MARK: - Achievement Badge
-
-struct ZXAchievementBadge: View {
-    let emoji: String; let label: String; let color: Color
-    var body: some View {
-        VStack(spacing: 6) {
-            Text(emoji).font(.system(size: 24)).frame(width: 48, height: 48)
-                .background(color.opacity(0.12)).clipShape(RoundedRectangle(cornerRadius: 14))
-                .overlay(RoundedRectangle(cornerRadius: 14).stroke(color.opacity(0.25), lineWidth: 1))
-            Text(label).font(.system(size: 10, weight: .semibold)).foregroundColor(Color.zxF04)
-        }
-        .frame(maxWidth: .infinity)
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXBackHeader.swift

@@ -1,32 +0,0 @@
-import SwiftUI
-
-// MARK: - Back Header
-
-struct ZXBackHeader<T: View>: View {
-    let title: String; let subtitle: String?; var onBack: (() -> Void)?
-    @ViewBuilder var trailing: () -> T
-
-    init(title: String, subtitle: String? = nil, onBack: (() -> Void)? = nil, @ViewBuilder trailing: @escaping () -> T = { EmptyView() }) {
-        self.title = title
-        self.subtitle = subtitle
-        self.onBack = onBack
-        self.trailing = trailing
-    }
-    @Environment(\.dismiss) private var dismiss
-    var body: some View {
-        HStack {
-            Button { (onBack ?? { dismiss() })() } label: {
-                Image(systemName: "chevron.left").font(.system(size: 18)).foregroundColor(Color.zxF007)
-                    .frame(width: 36, height: 36).background(Color.zxFill005).clipShape(RoundedRectangle(cornerRadius: 10))
-                    .overlay(RoundedRectangle(cornerRadius: 10).stroke(Color.zxBorder008, lineWidth: 1))
-            }
-            VStack(spacing: 1) {
-                Text(title).font(.system(size: 15, weight: .bold)).foregroundColor(Color.zxF0)
-                if let s = subtitle { Text(s).font(.system(size: 11)).foregroundColor(Color.zxF03) }
-            }.frame(maxWidth: .infinity)
-            trailing()
-        }
-        .padding(.horizontal, 16).padding(.top, ZXSpacing.statusBarH + 8).padding(.bottom, 12)
-        .background(Color.zxBg0)
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXCardRow.swift

@@ -1,24 +0,0 @@
-import SwiftUI
-
-// MARK: - Card Row
-
-struct ZXCardRow: View {
-    let emoji: String; let title: String; let desc: String; let status: String; let c: Color
-    var body: some View {
-        HStack(spacing: 12) {
-            Text(emoji).font(.system(size: 20)).frame(width: 40, height: 40)
-                .background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 10))
-            VStack(alignment: .leading, spacing: 2) {
-                Text(title).font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0)
-                Text(desc).font(.system(size: 11)).foregroundColor(Color.zxF03)
-            }
-            Spacer()
-            Text(status).font(.system(size: 10, weight: .semibold)).foregroundColor(c)
-                .padding(.horizontal, 8).padding(.vertical, 2)
-                .background(c.opacity(0.12)).clipShape(Capsule())
-        }
-        .padding(14)
-        .background(Color.zxFill003).clipShape(RoundedRectangle(cornerRadius: 14))
-        .overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder006, lineWidth: 1))
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXChartView.swift

@@ -1,36 +0,0 @@
-import SwiftUI
-
-// MARK: - Chart View
-
-struct ZXChartView: View {
-    let data: [(String, CGFloat)] = [
-        ("一", 0.62), ("二", 0.65), ("三", 0.71), ("四", 0.68),
-        ("五", 0.75), ("六", 0.79), ("今", 0.78)
-    ]
-    var body: some View {
-        VStack(spacing: 0) {
-            GeometryReader { g in
-                ZStack(alignment: .topLeading) {
-                    Path { path in
-                        let w = g.size.width / 7
-                        for (i, d) in data.enumerated() {
-                            let x = w * CGFloat(i) + w / 2
-                            let y = (1 - d.1) * g.size.height
-                            if i == 0 { path.move(to: CGPoint(x: x, y: y)) }
-                            else { path.addLine(to: CGPoint(x: x, y: y)) }
-                        }
-                    }
-                    .stroke(Color.zxPurple, style: StrokeStyle(lineWidth: 2, lineCap: .round, lineJoin: .round))
-                }
-            }
-            .frame(height: 100)
-            HStack(spacing: 0) {
-                ForEach(data, id: \.0) { d in
-                    Text(d.0).font(.system(size: 9))
-                        .foregroundColor(Color.zxF035)
-                        .frame(maxWidth: .infinity)
-                }
-            }
-        }
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXChip.swift

@@ -1,12 +0,0 @@
-import SwiftUI
-
-// MARK: - Chip
-
-struct ZXChip: View {
-    let text: String; let color: Color
-    var body: some View {
-        Text(text).font(.system(size: 10, weight: .semibold)).foregroundColor(color)
-            .padding(.horizontal, 8).padding(.vertical, 2)
-            .background(color.opacity(0.12)).clipShape(Capsule())
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXEmptyView.swift

@@ -1,60 +0,0 @@
-import SwiftUI
-
-// MARK: - Empty State
-
-struct ZXEmptyView: View {
-    let icon: String
-    let title: String
-    let subtitle: String?
-    let actionLabel: String?
-    let action: (() -> Void)?
-
-    init(
-        icon: String = "tray",
-        title: String,
-        subtitle: String? = nil,
-        actionLabel: String? = nil,
-        action: (() -> Void)? = nil
-    ) {
-        self.icon = icon
-        self.title = title
-        self.subtitle = subtitle
-        self.actionLabel = actionLabel
-        self.action = action
-    }
-
-    var body: some View {
-        VStack(spacing: 12) {
-            Image(systemName: icon)
-                .font(.system(size: 36))
-                .foregroundColor(Color.zxF03)
-
-            Text(title)
-                .font(.system(size: 14, weight: .semibold))
-                .foregroundColor(Color.zxF04)
-
-            if let subtitle = subtitle {
-                Text(subtitle)
-                    .font(.system(size: 12))
-                    .foregroundColor(Color.zxF03)
-                    .multilineTextAlignment(.center)
-            }
-
-            if let actionLabel = actionLabel, let action = action {
-                Button(action: action) {
-                    Text(actionLabel)
-                        .font(.system(size: 13, weight: .semibold))
-                        .foregroundColor(Color.zxPurple)
-                        .padding(.horizontal, 20)
-                        .padding(.vertical, 10)
-                        .background(Color.zxPurpleBG(0.1))
-                        .clipShape(Capsule())
-                        .overlay(Capsule().stroke(Color.zxPurple.opacity(0.3), lineWidth: 1))
-                }
-                .padding(.top, 4)
-            }
-        }
-        .frame(maxWidth: .infinity)
-        .padding(.vertical, 48)
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXErrorView.swift

@@ -1,74 +0,0 @@
-import SwiftUI
-
-// MARK: - Error Banner
-
-struct ZXErrorView: View {
-    let message: String
-    let onRetry: (() -> Void)?
-
-    init(message: String, onRetry: (() -> Void)? = nil) {
-        self.message = message
-        self.onRetry = onRetry
-    }
-
-    var body: some View {
-        VStack(spacing: 12) {
-            Image(systemName: "exclamationmark.triangle.fill")
-                .font(.system(size: 28))
-                .foregroundColor(Color.zxYellow)
-
-            Text(message)
-                .font(.system(size: 13))
-                .foregroundColor(Color.zxF04)
-                .multilineTextAlignment(.center)
-
-            if let onRetry = onRetry {
-                Button(action: onRetry) {
-                    HStack(spacing: 6) {
-                        Image(systemName: "arrow.clockwise")
-                            .font(.system(size: 14))
-                        Text("重试")
-                            .font(.system(size: 14, weight: .semibold))
-                    }
-                    .foregroundColor(Color.zxPurple)
-                    .padding(.horizontal, 20)
-                    .padding(.vertical, 10)
-                    .background(Color.zxPurpleBG(0.1))
-                    .clipShape(Capsule())
-                    .overlay(Capsule().stroke(Color.zxPurple.opacity(0.3), lineWidth: 1))
-                }
-            }
-        }
-        .frame(maxWidth: .infinity)
-        .padding(.vertical, 40)
-    }
-}
-
-// MARK: - Inline Error Banner (compact, for use inside scroll views)
-
-struct ZXErrorBanner: View {
-    let message: String
-    let onDismiss: () -> Void
-
-    var body: some View {
-        HStack(spacing: 10) {
-            Image(systemName: "exclamationmark.triangle.fill")
-                .font(.system(size: 14))
-                .foregroundColor(Color.zxYellow)
-            Text(message)
-                .font(.system(size: 13))
-                .foregroundColor(Color.zxF0)
-            Spacer()
-            Button(action: onDismiss) {
-                Image(systemName: "xmark")
-                    .font(.system(size: 12))
-                    .foregroundColor(Color.zxF04)
-            }
-        }
-        .padding(.horizontal, 14)
-        .padding(.vertical, 12)
-        .background(Color.zxYellowBG(0.12))
-        .clipShape(RoundedRectangle(cornerRadius: 12))
-        .overlay(RoundedRectangle(cornerRadius: 12).stroke(Color.zxYellow.opacity(0.25), lineWidth: 1))
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXIconBtn.swift

@@ -1,17 +0,0 @@
-import SwiftUI
-
-// MARK: - Icon Button
-
-struct ZXIconBtn: View {
-    let icon: String; let size: CGFloat; var branded = false; var label: String?; let action: () -> Void
-    var body: some View {
-        Button(action: action) {
-            Image(systemName: icon).font(.system(size: size * 0.44)).frame(width: size, height: size)
-        }
-        .foregroundColor(branded ? .white : Color.zxF05)
-        .background(branded ? AnyView(ZXGradient.brand) : AnyView(Color.zxFill005))
-        .clipShape(RoundedRectangle(cornerRadius: 10))
-        .overlay { if !branded { RoundedRectangle(cornerRadius: 10).stroke(Color.zxBorder008, lineWidth: 1) } }
-        .accessibilityLabel(label ?? icon.replacingOccurrences(of: ".", with: " "))
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXImportOption.swift

@@ -1,26 +0,0 @@
-import SwiftUI
-
-// MARK: - Import Option
-
-struct ZXImportOption: View {
-    let icon: String; let title: String; let desc: String
-    var body: some View {
-        Button {} label: {
-            HStack(spacing: 14) {
-                Image(systemName: icon).font(.system(size: 22)).foregroundColor(Color.zxPurple)
-                    .frame(width: 48, height: 48)
-                    .background(Color.zxPurpleBG(0.1)).clipShape(RoundedRectangle(cornerRadius: 14))
-                VStack(alignment: .leading, spacing: 2) {
-                    Text(title).font(.system(size: 15, weight: .semibold)).foregroundColor(Color.zxF0)
-                    Text(desc).font(.system(size: 12)).foregroundColor(Color.zxF04)
-                }
-                Spacer()
-                Image(systemName: "chevron.right").font(.system(size: 12)).foregroundColor(Color.zxF03)
-            }
-            .padding(16)
-            .background(Color.zxFill003).clipShape(RoundedRectangle(cornerRadius: 16))
-            .overlay(RoundedRectangle(cornerRadius: 16).stroke(Color.zxBorder006, lineWidth: 1))
-        }
-        .foregroundColor(.primary)
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXLoadingView.swift

@@ -1,44 +0,0 @@
-import SwiftUI
-
-// MARK: - Loading Shimmer
-
-struct ZXLoadingView: View {
-    var body: some View {
-        VStack(spacing: 16) {
-            ProgressView()
-                .tint(Color.zxPurple)
-            Text("加载中…")
-                .font(.system(size: 13))
-                .foregroundColor(Color.zxF04)
-        }
-        .frame(maxWidth: .infinity, maxHeight: .infinity)
-        .background(Color.zxBg0)
-    }
-}
-
-// MARK: - Card Placeholder (skeleton shimmer)
-
-struct ZXCardPlaceholder: View {
-    var body: some View {
-        RoundedRectangle(cornerRadius: 14)
-            .fill(Color.zxFill004)
-            .overlay(
-                RoundedRectangle(cornerRadius: 14)
-                    .stroke(Color.zxBorder006, lineWidth: 1)
-            )
-            .frame(height: 72)
-    }
-}
-
-// MARK: - Shimmer List
-
-struct ZXShimmerList: View {
-    let count: Int
-    var body: some View {
-        VStack(spacing: 12) {
-            ForEach(0..<count, id: \.self) { _ in
-                ZXCardPlaceholder()
-            }
-        }
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXOutlineBtn.swift

@@ -1,20 +0,0 @@
-import SwiftUI
-
-// MARK: - Outline Button
-
-struct ZXOutlineBtn: View {
-    let text: String
-    var body: some View {
-        Button {} label: {
-            HStack(spacing: 4) {
-                Text(text).font(.system(size: 13))
-                Image(systemName: "chevron.right").font(.system(size: 14))
-            }
-            .foregroundColor(Color.zxF05)
-            .frame(maxWidth: .infinity).frame(height: 44)
-            .background(Color.zxFill005)
-            .clipShape(RoundedRectangle(cornerRadius: 14))
-            .overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1))
-        }
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXProfileMenuRow.swift

@@ -1,22 +0,0 @@
-import SwiftUI
-
-// MARK: - Profile Menu Row
-
-struct ZXProfileMenuRow: View {
-    let emoji: String; let title: String; let desc: String
-    var body: some View {
-        HStack(spacing: 12) {
-            Text(emoji).font(.system(size: 20)).frame(width: 36, height: 36)
-                .background(Color.zxFill006).clipShape(RoundedRectangle(cornerRadius: 10))
-            VStack(alignment: .leading, spacing: 2) {
-                Text(title).font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0)
-                Text(desc).font(.system(size: 11)).foregroundColor(Color.zxF03)
-            }
-            Spacer()
-            Image(systemName: "chevron.right").font(.system(size: 12)).foregroundColor(Color.zxF03)
-        }
-        .padding(.horizontal, 16).padding(.vertical, 14)
-        .accessibilityLabel("\(title)：\(desc)")
-        .accessibilityAddTraits(.isButton)
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXProfileStat.swift

@@ -1,14 +0,0 @@
-import SwiftUI
-
-// MARK: - Profile Stat
-
-struct ZXProfileStat: View {
-    let value: String; let label: String; let color: Color
-    var body: some View {
-        VStack(spacing: 2) {
-            Text(value).font(.system(size: 18, weight: .bold)).foregroundColor(color)
-            Text(label).font(.system(size: 11)).foregroundColor(Color.zxF04)
-        }
-        .frame(maxWidth: .infinity)
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXQuickAction.swift

@@ -1,18 +0,0 @@
-import SwiftUI
-
-// MARK: - Quick Action
-
-struct ZXQuickAction: View {
-    let emoji: String; let label: String
-    var body: some View {
-        VStack(spacing: 6) {
-            Text(emoji).font(.system(size: 20))
-            Text(label).font(.system(size: 10, weight: .semibold))
-                .foregroundColor(Color.zxF006).multilineTextAlignment(.center).lineSpacing(4)
-        }
-        .frame(maxWidth: .infinity).frame(height: 72)
-        .background(Color.zxFill003)
-        .overlay(RoundedRectangle(cornerRadius: 16).stroke(Color.zxBorder006, lineWidth: 1))
-        .clipShape(RoundedRectangle(cornerRadius: 16))
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXSTaskRow.swift

@@ -1,47 +0,0 @@
-import SwiftUI
-
-struct ZXSTaskRow: View {
-    let task: StudyTaskEntity; var action: () -> Void
-    var body: some View {
-        Button(action: { withAnimation(.spring(response: 0.35, dampingFraction: 0.7)) { action() } }) {
-            HStack(spacing: 12) {
-                Image(systemName: task.isDone ? "checkmark.circle.fill" : "circle")
-                    .font(.system(size: 20))
-                    .foregroundColor(task.isDone ? Color.zxGreen : Color.zxF02)
-                VStack(alignment: .leading, spacing: 4) {
-                    Text(task.title)
-                        .font(.system(size: 13, weight: .semibold))
-                        .foregroundColor(task.isDone ? Color.zxF04 : Color.zxF0)
-                        .strikethrough(task.isDone)
-                    HStack(spacing: 8) {
-                        Text(task.taskType)
-                            .font(.system(size: 10, weight: .semibold))
-                            .foregroundColor(task.color)
-                            .padding(.horizontal, 6).padding(.vertical, 1)
-                            .background(task.color.opacity(0.12)).clipShape(Capsule())
-                        Text("约 \(task.minutes) 分钟")
-                            .font(.system(size: 10))
-                            .foregroundColor(Color.zxF035)
-                    }
-                }
-                Spacer()
-                if !task.isDone {
-                    Image(systemName: "play.fill")
-                        .font(.system(size: 14)).foregroundColor(.white)
-                        .frame(width: 32, height: 32)
-                        .background(ZXGradient.brand).clipShape(RoundedRectangle(cornerRadius: 10))
-                }
-            }
-            .padding(.horizontal, 16).padding(.vertical, 12)
-            .background(task.isDone ? Color.zxFill003 : Color.zxFill005)
-            .overlay(RoundedRectangle(cornerRadius: 14).stroke(
-                task.isDone ? Color.zxFill005 : Color.zxBorder008, lineWidth: 1
-            ))
-            .clipShape(RoundedRectangle(cornerRadius: 14))
-            .opacity(task.isDone ? 0.6 : 1)
-        }
-        .foregroundColor(.primary)
-        .accessibilityLabel("\(task.title)，\(task.isDone ? "已完成" : "未完成")")
-        .accessibilityHint(task.isDone ? "双击取消完成" : "双击标记完成")
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXScoreBox.swift

@@ -1,11 +0,0 @@
-import SwiftUI
-
-// MARK: - Score Box
-
-struct ZXScoreBox: View {
-    let score: Int; let bg: Color; let fg: Color
-    var body: some View {
-        Text("\(score)").font(.system(size: 12, weight: .heavy)).foregroundColor(fg)
-            .frame(width: 36, height: 36).background(bg).clipShape(RoundedRectangle(cornerRadius: 10))
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXShimmerModifier.swift

@@ -1,40 +0,0 @@
-import SwiftUI
-
-struct ZXShimmerModifier: ViewModifier {
-    @State private var phase: CGFloat = -1
-
-    let color: Color
-    let highlightColor: Color
-
-    init(color: Color = Color.zxFill005, highlightColor: Color = Color.zxFill006) {
-        self.color = color
-        self.highlightColor = highlightColor
-    }
-
-    func body(content: Content) -> some View {
-        content
-            .overlay {
-                GeometryReader { geo in
-                    LinearGradient(
-                        colors: [color, highlightColor, color],
-                        startPoint: .leading,
-                        endPoint: .trailing
-                    )
-                    .frame(width: geo.size.width * 2)
-                    .offset(x: phase * geo.size.width)
-                    .animation(
-                        .linear(duration: 1.5).repeatForever(autoreverses: false),
-                        value: phase
-                    )
-                }
-            }
-            .clipped()
-            .onAppear { phase = 1 }
-    }
-}
-
-extension View {
-    func shimmer(color: Color = Color.zxFill005, highlightColor: Color = Color.zxFill006) -> some View {
-        modifier(ZXShimmerModifier(color: color, highlightColor: highlightColor))
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXStatBadge.swift

@@ -1,18 +0,0 @@
-import SwiftUI
-
-// MARK: - Stat Badge
-
-struct ZXStatBadge: View {
-    let icon: String; let label: String; let value: String; let trend: String; let color: Color
-    var body: some View {
-        VStack(spacing: 3) {
-            Image(systemName: icon).font(.system(size: 14)).foregroundColor(color)
-            Text(value).font(.system(size: 16, weight: .heavy)).foregroundColor(Color.zxF0)
-            Text(label).font(.system(size: 9)).foregroundColor(Color.zxF04).multilineTextAlignment(.center)
-        }
-        .frame(maxWidth: .infinity).frame(height: 72).padding(.vertical, 4)
-        .background(color.opacity(0.06))
-        .overlay(RoundedRectangle(cornerRadius: 14).stroke(color.opacity(0.15), lineWidth: 1))
-        .clipShape(RoundedRectangle(cornerRadius: 14))
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXTabBar.swift

@@ -1,45 +0,0 @@
-import SwiftUI
-
-// MARK: - Tab Bar
-
-struct ZXTabBar: View {
-    @Binding var active: String
-    private let tabs = [
-        ("ai","AI","brain.head.profile"),
-        ("library","知识库","books.vertical.fill"),
-        ("study","学习","bolt.fill"),
-        ("analysis","分析","chart.bar.fill"),
-        ("profile","我的","person.fill"),
-    ]
-    var body: some View {
-        HStack(spacing: 0) {
-            ForEach(tabs, id: \.0) { item in
-                let on = item.0 == active
-                Button { withAnimation(.spring(response: 0.35, dampingFraction: 0.85)) { active = item.0 } } label: {
-                    VStack(spacing: 4) {
-                        ZStack {
-                            if on {
-                                Circle().fill(Color.zxPurple.opacity(0.2))
-                                    .frame(width: 28, height: 28).scaleEffect(1.4)
-                            }
-                            Image(systemName: item.2)
-                                .font(.system(size: 22, weight: on ? .semibold : .regular))
-                                .foregroundColor(on ? Color.zxPurple : Color.zxF035)
-                        }
-                        Text(item.1)
-                            .font(.system(size: 10, weight: on ? .semibold : .regular))
-                            .foregroundColor(on ? Color.zxPurple : Color.zxF035)
-                    }
-                }
-                .accessibilityLabel("\(item.1)标签")
-                .accessibilityAddTraits(on ? .isSelected : [])
-                .frame(maxWidth: .infinity)
-            }
-        }
-        .padding(.top, 6).padding(.bottom, 34).frame(height: 83)
-        .background(.ultraThinMaterial).background(Color.zxBg0.opacity(0.95))
-        .overlay(alignment: .top) {
-            Rectangle().fill(Color.zxBorder008).frame(height: 1)
-        }
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXTypingIndicator.swift

@@ -1,26 +0,0 @@
-import SwiftUI
-
-struct ZXTypingIndicator: View {
-    @State private var phase = 0
-
-    var body: some View {
-        HStack(spacing: 4) {
-            ForEach(0..<3) { i in
-                Circle()
-                    .fill(Color.zxPurple)
-                    .frame(width: 8, height: 8)
-                    .scaleEffect(phase == i ? 1 : 0.5)
-                    .animation(.easeInOut(duration: 0.35).repeatForever(autoreverses: true), value: phase)
-            }
-        }
-        .padding(.horizontal, 14)
-        .padding(.vertical, 10)
-        .background(Color.zxFill004)
-        .clipShape(RoundedRectangle(cornerRadius: 16))
-        .onAppear {
-            Timer.scheduledTimer(withTimeInterval: 0.4, repeats: true) { _ in
-                phase = (phase + 1) % 3
-            }
-        }
-    }
-}

AIStudyApp/AIStudyApp/Shared/Components/ZXWeakRow.swift

@@ -1,27 +0,0 @@
-import SwiftUI
-
-// MARK: - Weak Point Row
-
-struct ZXWeakRow: View {
-    let score: Int; let topic: String; let lib: String; let priority: String
-    var body: some View {
-        HStack(spacing: 12) {
-            Text("\(score)").font(.system(size: 13, weight: .heavy)).foregroundColor(Color.zxYellow)
-                .frame(width: 40, height: 40)
-                .background(Color.zxYellowBG(0.15)).clipShape(RoundedRectangle(cornerRadius: 12))
-            VStack(alignment: .leading, spacing: 2) {
-                Text(topic).font(.system(size: 13, weight: .semibold)).foregroundColor(Color.zxF0)
-                Text(lib).font(.system(size: 11)).foregroundColor(Color.zxF04)
-            }.frame(maxWidth: .infinity, alignment: .leading)
-            Text("\(priority)优先").font(.system(size: 11, weight: .bold))
-                .foregroundColor(priority == "高" ? Color.zxRed : Color.zxYellow)
-                .padding(.horizontal, 8).padding(.vertical, 3)
-                .background((priority == "高" ? Color.zxRedBG(0.15) : Color.zxYellowBG(0.15)))
-                .clipShape(Capsule())
-        }
-        .padding(.horizontal, 16).padding(.vertical, 12)
-        .background(Color.zxYellowBG(0.06))
-        .overlay(RoundedRectangle(cornerRadius: 14).stroke(Color(hex: "#F59E0B", opacity: 0.15), lineWidth: 1))
-        .clipShape(RoundedRectangle(cornerRadius: 14))
-    }
-}