feat(ios): 全局替换所有 systemName 为 Tabler SVG 图标

- 30+ 种 systemName 全部换为自定义 SVG
- 新增 list/clock/refresh/pencil 4 个 Tabler 图标
- 底部导航栏已使用自定义 SVG（无需改动）

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

AIStudyApp/AIStudyApp/Assets.xcassets/Icons/icon-clock.imageset/Contents.json

@@ -0,0 +1,16 @@
+{
+  "images": [
+    {
+      "filename": "icon-clock.svg",
+      "idiom": "universal"
+    }
+  ],
+  "info": {
+    "author": "xcode",
+    "version": 1
+  },
+  "properties": {
+    "template-rendering-intent": "template",
+    "preserves-vector-representation": true
+  }
+}

AIStudyApp/AIStudyApp/Assets.xcassets/Icons/icon-clock.imageset/icon-clock.svg

@@ -0,0 +1,20 @@
+<!--
+tags: [time, watch, alarm, clock, control, operation, function, interface, management]
+category: System
+version: "1.0"
+unicode: "ea70"
+-->
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="#000"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M3 12a9 9 0 1 0 18 0a9 9 0 0 0 -18 0" />
+  <path d="M12 7v5l3 3" />
+</svg>

AIStudyApp/AIStudyApp/Assets.xcassets/Icons/icon-list.imageset/Contents.json

@@ -0,0 +1,16 @@
+{
+  "images": [
+    {
+      "filename": "icon-list.svg",
+      "idiom": "universal"
+    }
+  ],
+  "info": {
+    "author": "xcode",
+    "version": 1
+  },
+  "properties": {
+    "template-rendering-intent": "template",
+    "preserves-vector-representation": true
+  }
+}

AIStudyApp/AIStudyApp/Assets.xcassets/Icons/icon-list.imageset/icon-list.svg

@@ -0,0 +1,24 @@
+<!--
+tags: [task, unordered, bullets, agenda, shopping, list, typography, writing, font, character]
+category: Text
+version: "1.2"
+unicode: "eb6b"
+-->
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="#000"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M9 6l11 0" />
+  <path d="M9 12l11 0" />
+  <path d="M9 18l11 0" />
+  <path d="M5 6l0 .01" />
+  <path d="M5 12l0 .01" />
+  <path d="M5 18l0 .01" />
+</svg>

AIStudyApp/AIStudyApp/Assets.xcassets/Icons/icon-pencil.imageset/Contents.json

@@ -0,0 +1,16 @@
+{
+  "images": [
+    {
+      "filename": "icon-pencil.svg",
+      "idiom": "universal"
+    }
+  ],
+  "info": {
+    "author": "xcode",
+    "version": 1
+  },
+  "properties": {
+    "template-rendering-intent": "template",
+    "preserves-vector-representation": true
+  }
+}

AIStudyApp/AIStudyApp/Assets.xcassets/Icons/icon-pencil.imageset/icon-pencil.svg

@@ -0,0 +1,20 @@
+<!--
+tags: [write, draft, edit, note, pencil, creative, artistic, visual, aesthetic, style]
+category: Design
+version: "1.1"
+unicode: "eb04"
+-->
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="#000"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M4 20h4l10.5 -10.5a2.828 2.828 0 1 0 -4 -4l-10.5 10.5v4" />
+  <path d="M13.5 6.5l4 4" />
+</svg>

AIStudyApp/AIStudyApp/Assets.xcassets/Icons/icon-refresh.imageset/Contents.json

@@ -0,0 +1,16 @@
+{
+  "images": [
+    {
+      "filename": "icon-refresh.svg",
+      "idiom": "universal"
+    }
+  ],
+  "info": {
+    "author": "xcode",
+    "version": 1
+  },
+  "properties": {
+    "template-rendering-intent": "template",
+    "preserves-vector-representation": true
+  }
+}

AIStudyApp/AIStudyApp/Assets.xcassets/Icons/icon-refresh.imageset/icon-refresh.svg

@@ -0,0 +1,20 @@
+<!--
+tags: [synchronization, reload, restart, spinner, loader, ajax, update, arrows, refresh, navigation]
+category: Arrows
+version: "1.0"
+unicode: "eb13"
+-->
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="#000"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="M20 11a8.1 8.1 0 0 0 -15.5 -2m-.5 -4v4h4" />
+  <path d="M4 13a8.1 8.1 0 0 0 15.5 2m.5 4v-4h-4" />
+</svg>

AIStudyApp/AIStudyApp/Features/AI/AIChatPage.swift

@@ -17,7 +17,7 @@ struct AIChatPage: View {
                     }.frame(maxWidth: .infinity, maxHeight: .infinity)
                 } else if let error = vm.sessionError {
                     VStack(spacing: 16) {
-                        Image(systemName: "exclamationmark.triangle").font(.system(size: 36)).foregroundColor(Color.zxF04)
+                        Image("icon-warning").font(.system(size: 36)).foregroundColor(Color.zxF04)
                         Text(error).font(.system(size: 14)).foregroundColor(Color.zxF04)
                     }.frame(maxWidth: .infinity, maxHeight: .infinity)
                 } else {
@@ -32,7 +32,7 @@ struct AIChatPage: View {
                                             VStack(spacing: 4) {
                                                 ForEach(citations.prefix(3)) { c in
                                                     HStack(spacing: 4) {
-                                                        Image(systemName: "doc.text").font(.system(size: 9)).foregroundColor(Color.zxF04)
+                                                        Image("icon-file").font(.system(size: 9)).foregroundColor(Color.zxF04)
                                                         Text(c.excerptText?.prefix(60).description ?? "").font(.system(size: 10)).foregroundColor(Color.zxF04).lineLimit(1)
                                                     }.padding(.horizontal, 8).padding(.vertical, 4)
                                                         .background(Color.zxFill004).clipShape(Capsule())
@@ -54,7 +54,7 @@ struct AIChatPage: View {
                                 }
                                 if vm.isSending {
                                     HStack(spacing: 8) {
-                                        Image(systemName: "brain.head.profile").foregroundColor(Color.zxPurple)
+                                        Image("icon-brain").foregroundColor(Color.zxPurple)
                                             .frame(width: 28, height: 28).background(Color(hex: "#7C6EFA", opacity: 0.15)).clipShape(Circle())
                                         ZXDotLoader(color: Color.zxPurple).padding(.leading, 4); Spacer()
                                     }.padding(.horizontal, 20)
@@ -73,7 +73,7 @@ struct AIChatPage: View {
         .toolbar {
             ToolbarItem(placement: .topBarTrailing) {
                 Button { Task { sessions = (try? await RagChatService.shared.listSessions()) ?? []; showSessions = true } } label: {
-                    Image(systemName: "list.bullet.rectangle").font(.system(size: 16)).foregroundColor(Color.zxF05)
+                    Image("icon-list").font(.system(size: 16)).foregroundColor(Color.zxF05)
                 }
             }
         }
@@ -111,7 +111,7 @@ struct AIChatPage: View {
     private func chatBubble(_ m: AIMessage) -> some View {
         HStack(alignment: .top, spacing: 8) {
             if m.role == .ai {
-                Image(systemName: "brain.head.profile").foregroundColor(Color.zxPurple)
+                Image("icon-brain").foregroundColor(Color.zxPurple)
                     .frame(width: 28, height: 28).background(Color(hex: "#7C6EFA", opacity: 0.15)).clipShape(Circle())
             }
             Text(m.content).zxFontScaled(size: 14)

AIStudyApp/AIStudyApp/Features/AI/AIHomeView.swift

@@ -149,7 +149,7 @@ struct AIHomeView: View {
 
             // 刷新按钮
             Button { Task { await checkServer() } } label: {
-                Image(systemName: "arrow.clockwise")
+                Image("icon-refresh")
                     .font(.system(size: 16, weight: .medium))
                     .foregroundColor(Color.zxInkSecondary)
                     .frame(width: 40, height: 40)
@@ -165,7 +165,7 @@ struct AIHomeView: View {
         VStack(alignment: .leading, spacing: 10) {
             // Tag
             HStack(spacing: 6) {
-                Image(systemName: "sparkles")
+                Image("icon-sparkles")
                     .font(.system(size: 11))
                 Text("AI 驱动学习")
                     .font(.system(size: ZXFont.caption2.size, weight: .semibold))
@@ -290,7 +290,7 @@ struct AIHomeView: View {
             VStack(alignment: .leading, spacing: 14) {
                 // Header
                 HStack {
-                    Image(systemName: "sparkles")
+                    Image("icon-sparkles")
                         .font(.system(size: 13))
                         .foregroundColor(Color.zxPrimary)
                         .frame(width: 30, height: 30)
@@ -407,7 +407,7 @@ struct AIHomeView: View {
 
     private var inputBar: some View {
         HStack(spacing: 10) {
-            Image(systemName: "sparkles")
+            Image("icon-sparkles")
                 .font(.system(size: 15))
                 .foregroundColor(Color.zxPrimary)
 
@@ -419,7 +419,7 @@ struct AIHomeView: View {
 
             // 语音按钮 — 占位
             Button {} label: {
-                Image(systemName: "mic.fill")
+                Image("icon-mic")
                     .font(.system(size: 17))
                     .foregroundColor(Color.zxInkTertiary)
             }
@@ -428,7 +428,7 @@ struct AIHomeView: View {
             Button {
                 navigateToChat = true
             } label: {
-                Image(systemName: "arrow.up")
+                Image("icon-upload")
                     .font(.system(size: 14, weight: .bold))
                     .foregroundColor(Color.zxOnPrimary)
                     .frame(width: 32, height: 32)

AIStudyApp/AIStudyApp/Features/AI/ActiveRecallView.swift

@@ -85,11 +85,11 @@ struct ActiveRecallView: View {
         VStack(alignment: .leading, spacing: 12) {
             HStack(spacing: 8) {
                 if current.isVoice {
-                    Image(systemName: "mic.fill").font(.system(size: 12)).foregroundColor(Color.zxOrange)
+                    Image("icon-mic").font(.system(size: 12)).foregroundColor(Color.zxOrange)
                     Text("语音题").font(.system(size: 10, weight: .bold)).foregroundColor(Color.zxOrange)
                         .padding(.horizontal, 6).padding(.vertical, 2).background(Color.zxOrangeBG(0.1)).clipShape(Capsule())
                 } else {
-                    Image(systemName: "pencil.line").font(.system(size: 12)).foregroundColor(Color.zxPurple)
+                    Image("icon-pencil").font(.system(size: 12)).foregroundColor(Color.zxPurple)
                     Text("文字题").font(.system(size: 10, weight: .bold)).foregroundColor(Color.zxPurple)
                         .padding(.horizontal, 6).padding(.vertical, 2).background(Color.zxPurpleBG(0.1)).clipShape(Capsule())
                 }
@@ -160,7 +160,7 @@ struct ActiveRecallView: View {
         VStack(spacing: 12) {
             ZStack {
                 Circle().fill(Color.zxOrangeBG(0.1)).frame(width: 80, height: 80)
-                Image(systemName: "mic.fill").font(.system(size: 32)).foregroundColor(Color.zxOrange)
+                Image("icon-mic").font(.system(size: 32)).foregroundColor(Color.zxOrange)
             }
             Text("点击按钮开始录音，用费曼方法口头解释").font(.system(size: 12)).foregroundColor(Color.zxF04)
         }

AIStudyApp/AIStudyApp/Features/Analysis/AnalysisHomeView.swift

@@ -60,12 +60,12 @@ struct AnalysisHomeView: View {
                         // AI 综合分析
                         if let summary = viewModel.summary {
                             VStack(alignment: .leading, spacing: 12) {
-                                HStack(spacing: 8) { Image(systemName: "brain.head.profile").font(.system(size: 14)).foregroundColor(Color.zxPurple); Text("AI 综合分析").font(.system(size: 14, weight: .bold)).foregroundColor(Color.zxF0) }
+                                HStack(spacing: 8) { Image("icon-brain").font(.system(size: 14)).foregroundColor(Color.zxPurple); Text("AI 综合分析").font(.system(size: 14, weight: .bold)).foregroundColor(Color.zxF0) }
                                 Text(aiAnalysisText).font(.system(size: 13)).foregroundColor(Color.zxF05).lineSpacing(4)
                             }.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(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(); NavigationLink(value: Route.weakPoints) { Text("全部 \(viewModel.focusItems.count) 个").font(.system(size: 12)).foregroundColor(Color.zxPurple) } }
+                            HStack { HStack(spacing: 8) { Image("icon-warning").font(.system(size: 14)).foregroundColor(Color.zxYellow); Text("薄弱知识点").font(.system(size: 15, weight: .bold)).foregroundColor(Color.zxF0) }; Spacer(); NavigationLink(value: Route.weakPoints) { Text("全部 \(viewModel.focusItems.count) 个").font(.system(size: 12)).foregroundColor(Color.zxPurple) } }
                             ForEach(viewModel.focusItems.prefix(5)) { item in ZXWeakRow(score: item.masteryScore ?? 0, topic: item.title, lib: item.knowledgeBaseId ?? "", priority: item.priority ?? "normal") }
                             if viewModel.focusItems.isEmpty && !viewModel.isLoading { Text("暂无薄弱知识点").font(.system(size: 13)).foregroundColor(Color.zxF03) }
                         }

AIStudyApp/AIStudyApp/Features/Library/LibraryHomeView.swift

@@ -24,7 +24,7 @@ struct LibraryHomeView: View {
                 }.padding(.horizontal, 20).padding(.top, 8).padding(.bottom, 12)
 
                 // 搜索
-                HStack(spacing: 8) { Image(systemName: "magnifyingglass").font(.system(size: 16)).foregroundColor(Color.zxF03); TextField("搜索知识库或知识点…", text: $s).font(.system(size: 14)).tint(Color.zxPurple) }
+                HStack(spacing: 8) { Image("icon-search").font(.system(size: 16)).foregroundColor(Color.zxF03); TextField("搜索知识库或知识点…", text: $s).font(.system(size: 14)).tint(Color.zxPurple) }
                     .padding(.horizontal, 14).frame(height: 44).background(Color.zxFill004).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 14)).padding(.horizontal, 20).padding(.bottom, 12)
 
                 // 筛选 chips
@@ -92,17 +92,17 @@ struct ZLibraryCard: View { let coverUrl: String?; let name: String; let desc: S
                     AsyncImage(url: imageUrl) { phase in
                         switch phase {
                         case .success(let img): img.resizable().scaledToFill().frame(width: 56, height: 56).clipShape(RoundedRectangle(cornerRadius: 13))
-                        default: Image(systemName: "books.vertical.fill").font(.system(size: 22)).foregroundColor(Color.zxPurple.opacity(0.5))
+                        default: Image("icon-books").font(.system(size: 22)).foregroundColor(Color.zxPurple.opacity(0.5))
                         }
                     }
                 } else {
-                    Image(systemName: "books.vertical.fill").font(.system(size: 22)).foregroundColor(Color.zxPurple.opacity(0.5))
+                    Image("icon-books").font(.system(size: 22)).foregroundColor(Color.zxPurple.opacity(0.5))
                 }
             }
             VStack(alignment: .leading, spacing: 4) {
                 HStack(spacing: 6) {
                     Text(name).font(.system(size: 16, weight: .bold)).foregroundColor(Color.zxF0)
-                    if isPinned { Image(systemName: "pin.fill").font(.system(size: 10)).foregroundColor(Color.zxOrange) }
+                    if isPinned { Image("icon-pin").font(.system(size: 10)).foregroundColor(Color.zxOrange) }
                     if visibility == "public" { Text("公开").font(.system(size: 9, weight: .semibold)).foregroundColor(Color.zxGreen).padding(.horizontal, 5).padding(.vertical, 1).background(Color.zxGreen.opacity(0.12)).clipShape(Capsule()) }
                 }
                 if !desc.isEmpty { Text(desc).font(.system(size: 12)).foregroundColor(Color.zxF04).lineLimit(1) }
@@ -110,7 +110,7 @@ struct ZLibraryCard: View { let coverUrl: String?; let name: String; let desc: S
             Spacer()
         }.padding(16)
         HStack {
-            HStack(spacing: 4) { Image(systemName: "clock").font(.system(size: 10)); Text("\(items) 项 · \(last)").font(.system(size: 11)) }.foregroundColor(Color.zxF03)
+            HStack(spacing: 4) { Image("icon-clock").font(.system(size: 10)); Text("\(items) 项 · \(last)").font(.system(size: 11)) }.foregroundColor(Color.zxF03)
             Spacer()
         }.padding(.horizontal, 16).padding(.bottom, 12) }
         .background(Color.zxFill003).clipShape(RoundedRectangle(cornerRadius: 20)).overlay(RoundedRectangle(cornerRadius: 20).stroke(Color.zxBorder006, lineWidth: 1)) }
@@ -121,13 +121,13 @@ struct LibrarySearchView: View {
     var body: some View {
         ZStack { Color.zxBg0.ignoresSafeArea()
             VStack(spacing: 0) {
-                HStack(spacing: 8) { Image(systemName: "magnifyingglass").font(.system(size: 16)).foregroundColor(Color.zxF03); TextField("搜索知识库或知识点…", text: $query).font(.system(size: 14)).tint(Color.zxPurple) }
+                HStack(spacing: 8) { Image("icon-search").font(.system(size: 16)).foregroundColor(Color.zxF03); TextField("搜索知识库或知识点…", text: $query).font(.system(size: 14)).tint(Color.zxPurple) }
                     .padding(.horizontal, 14).frame(height: 44).background(Color.zxFill004).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)).clipShape(RoundedRectangle(cornerRadius: 14))
                     .padding(.horizontal, 20).padding(.top, 8).padding(.bottom, 16)
                 ScrollView { VStack(spacing: 12) {
                     if query.isEmpty {
                         VStack(spacing: 12) {
-                            Image(systemName: "magnifyingglass").font(.system(size: 36)).foregroundColor(Color.zxF03)
+                            Image("icon-search").font(.system(size: 36)).foregroundColor(Color.zxF03)
                             Text("搜索知识点、知识库或标签").font(.system(size: 13)).foregroundColor(Color.zxF03)
                         }.padding(.top, 80)
                     }

AIStudyApp/AIStudyApp/Features/Library/LibrarySubpages.swift

@@ -87,7 +87,7 @@ struct CreateLibraryPage: View {
                     DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) { showCoverPicker = true }
                 } label: {
                     HStack(spacing: 12) {
-                        Image(systemName: "photo.on.rectangle").font(.system(size: 20)).foregroundColor(Color.zxPrimary).frame(width: 40, height: 40).background(Color.zxPrimarySoft).clipShape(RoundedRectangle(cornerRadius: 10))
+                        Image("icon-camera").font(.system(size: 20)).foregroundColor(Color.zxPrimary).frame(width: 40, height: 40).background(Color.zxPrimarySoft).clipShape(RoundedRectangle(cornerRadius: 10))
                         VStack(alignment: .leading, spacing: 2) {
                             Text("从相册选择").font(.system(size: 15, weight: .medium)).foregroundColor(Color.zxF0)
                             Text("选择一张图片作为封面").font(.system(size: 12)).foregroundColor(Color.zxF04)
@@ -268,7 +268,7 @@ struct LibraryDetailPage: View {
                 }
                 ToolbarItem(placement: .topBarTrailing) {
                     NavigationLink(value: Route.quizList(knowledgeBaseId: knowledgeBaseId)) {
-                        Image(systemName: "questionmark.circle").font(.system(size: 16)).foregroundColor(Color.zxF05)
+                        Image("icon-question").font(.system(size: 16)).foregroundColor(Color.zxF05)
                     }
                 }
                 ToolbarItem(placement: .topBarTrailing) {
@@ -381,7 +381,7 @@ struct AddKnowledgePage: View {
                         HStack(spacing: 8) {
                             Button { showFilePicker = true } label: {
                                 HStack {
-                                    Image(systemName: "doc.badge.plus")
+                                    Image("icon-plus")
                                     Text("选择文件")
                                 }
                                 .font(.system(size: 14, weight: .medium))
@@ -392,7 +392,7 @@ struct AddKnowledgePage: View {
                             }
                             Button { showPhotoPicker = true } label: {
                                 HStack {
-                                    Image(systemName: "photo.on.rectangle")
+                                    Image("icon-camera")
                                     Text("图片")
                                 }
                                 .font(.system(size: 14, weight: .medium))
@@ -619,7 +619,7 @@ struct KnowledgeDetailPage: View {
         ZStack { Color.zxBg0.ignoresSafeArea(); VStack(spacing: 0) {
             HStack { Spacer()
                 NavigationLink(value: Route.editKnowledge(item: item)) {
-                    Image(systemName: "pencil").font(.system(size: 16)).foregroundColor(Color.zxF05)
+                    Image("icon-pencil").font(.system(size: 16)).foregroundColor(Color.zxF05)
                         .frame(width: 36, height: 36).background(Color(hex:"#FFFFFF",opacity:0.05))
                         .clipShape(RoundedRectangle(cornerRadius: 10))
                         .overlay(RoundedRectangle(cornerRadius: 10).stroke(Color.zxBorder008, lineWidth: 1))
@@ -664,7 +664,7 @@ struct ImportPage: View {
         ZStack { Color.zxBg0.ignoresSafeArea(); VStack(spacing: 0) {
             ScrollView { VStack(spacing: 12) {
                 if let error = importError {
-                    HStack(spacing: 8) { Image(systemName: "exclamationmark.triangle.fill").foregroundColor(.red); Text(error).font(.system(size: 13)).foregroundColor(.red) }
+                    HStack(spacing: 8) { Image("icon-warning").foregroundColor(.red); Text(error).font(.system(size: 13)).foregroundColor(.red) }
                         .padding(12)
 
                 }

AIStudyApp/AIStudyApp/Features/Profile/EditProfilePage.swift

@@ -163,7 +163,7 @@ struct EditProfilePage: View {
     private var defaultAvatar: some View {
         ZStack {
             Circle().fill(Color.zxPurpleBG(0.2)).frame(width: 88, height: 88)
-            Image(systemName: "person.crop.circle.fill")
+            Image("icon-brain")
                 .font(.system(size: 40))
                 .foregroundColor(Color.zxPurple)
         }

AIStudyApp/AIStudyApp/Features/Profile/NotificationListView.swift

@@ -23,7 +23,7 @@ struct NotificationListView: View {
                     if isLoading && notifications.isEmpty {
                         VStack(spacing: 12) { ProgressView().tint(Color.zxPurple); Text("加载中…").font(.system(size: 13)).foregroundColor(Color.zxF04) }.padding(.top, 120)
                     } else if notifications.isEmpty {
-                        VStack(spacing: 12) { Image(systemName: "bell.slash").font(.system(size: 40)).foregroundColor(Color.zxF03); Text("暂无通知").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF03) }.padding(.top, 120)
+                        VStack(spacing: 12) { Image("icon-bell-off").font(.system(size: 40)).foregroundColor(Color.zxF03); Text("暂无通知").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF03) }.padding(.top, 120)
                     } else {
                         if !todayItems.isEmpty { sectionView("今天", items: todayItems) }
                         if !weekItems.isEmpty { sectionView("本周", items: weekItems) }

AIStudyApp/AIStudyApp/Features/Profile/ProfileView.swift

@@ -49,7 +49,7 @@ struct ProfileView: View {
     private var defaultAvatarIcon: some View {
         ZStack {
             Circle().fill(Color.zxPurpleBG(0.2)).frame(width: 80, height: 80)
-            Image(systemName: "person.crop.circle.fill")
+            Image("icon-brain")
                 .font(.system(size: 36))
                 .foregroundColor(Color.zxPurple)
         }
@@ -94,7 +94,7 @@ struct ProfileView: View {
             VStack(spacing: 0) {
                 NavigationLink(value: Route.libraryCreate) {
                     HStack {
-                        Image(systemName: "books.vertical.fill").resizable().scaledToFit().frame(width: 20, height: 20).foregroundColor(Color.zxF05)
+                        Image("icon-books").resizable().scaledToFit().frame(width: 20, height: 20).foregroundColor(Color.zxF05)
 
                         Text("学习资产").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0)
                         Spacer()
@@ -105,7 +105,7 @@ struct ProfileView: View {
                 ZXProfileDivider()
                 NavigationLink(value: Route.notificationList) {
                     HStack {
-                        Image(systemName: "bell.fill").resizable().scaledToFit().frame(width: 20, height: 20).foregroundColor(Color.zxF05)
+                        Image("icon-bell-on").resizable().scaledToFit().frame(width: 20, height: 20).foregroundColor(Color.zxF05)
 
                         Text("消息中心").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0)
                         Spacer(); Image("icon-chevron-right").resizable().scaledToFit().frame(width: 16, height: 16).foregroundColor(Color.zxF03)
@@ -113,7 +113,7 @@ struct ProfileView: View {
                 }.foregroundColor(.primary)
                 ZXProfileDivider()
                 HStack {
-                    Image(systemName: "externaldrive.fill").resizable().scaledToFit().frame(width: 20, height: 20).foregroundColor(Color.zxF05)
+                    Image("icon-storage").resizable().scaledToFit().frame(width: 20, height: 20).foregroundColor(Color.zxF05)
 
                     VStack(alignment: .leading, spacing: 2) {
                         Text("存储空间").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0)

AIStudyApp/AIStudyApp/Features/Quiz/QuizViews.swift

@@ -16,7 +16,7 @@ struct QuizListView: View {
                     VStack(spacing: 12) { ProgressView().tint(Color.zxPurple); Text("加载中…").font(.system(size: 13)).foregroundColor(Color.zxF04) }.frame(maxWidth: .infinity, maxHeight: .infinity)
                 } else if quizzes.isEmpty {
                     VStack(spacing: 16) {
-                        Image(systemName: "questionmark.circle").font(.system(size: 40)).foregroundColor(Color.zxF03)
+                        Image("icon-question").font(.system(size: 40)).foregroundColor(Color.zxF03)
                         Text("暂无测验").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF04)
                         Text("基于知识库内容自动生成测验题目").font(.system(size: 12)).foregroundColor(Color.zxF03)
                         Button {

AIStudyApp/AIStudyApp/Features/Study/LearningSessionView.swift

@@ -144,7 +144,7 @@ struct LearningSessionView: View {
     private var tipsCard: some View {
         VStack(alignment: .leading, spacing: 10) {
             HStack(spacing: 8) {
-                Image(systemName: "lightbulb.fill").font(.system(size: 14)).foregroundColor(Color.zxYellow)
+                Image("icon-lightbulb").font(.system(size: 14)).foregroundColor(Color.zxYellow)
                 Text("学习小贴士").font(.system(size: 13, weight: .bold)).foregroundColor(Color.zxF0)
             }
             Text("保持专注，25-30 分钟后休息 5 分钟能有效提升记忆效果。学习时尽量避免切换任务。")

AIStudyApp/AIStudyApp/Features/Study/ReviewCardView.swift

@@ -98,7 +98,7 @@ struct ReviewCardView: View {
                 VStack(spacing: 6) {
                     Rectangle().fill(Color.zxBorder008).frame(height: 1).padding(.vertical, 12)
                     HStack(spacing: 4) {
-                        Image(systemName: "book.closed.fill").font(.system(size: 10)).foregroundColor(Color.zxF03)
+                        Image("icon-method").font(.system(size: 10)).foregroundColor(Color.zxF03)
                         Text(current.source).zxFontScaled(size: 11).foregroundColor(Color.zxF04)
                     }
                 }

AIStudyApp/AIStudyApp/Features/Study/StudyHomeView.swift

@@ -18,7 +18,7 @@ struct StudyHomeView: View {
                     HStack {
                         Spacer()
                         HStack(spacing: 4) {
-                            Image(systemName: "flame.fill")
+                            Image("icon-flame")
                                 .font(.system(size: 14)).foregroundColor(Color.zxOrange)
                             Text("\(streakDays) 天连续")
                                 .font(.system(size: 13, weight: .bold)).foregroundColor(Color.zxOrange)
@@ -55,14 +55,14 @@ struct StudyHomeView: View {
                     HStack(spacing: 12) {
                         NavigationLink(value: Route.aiChat) {
                             VStack(spacing: 6) {
-                                Image(systemName: "sparkles").font(.system(size: 18)).foregroundColor(Color.zxPurple).frame(width: 44, height: 44)
+                                Image("icon-sparkles").font(.system(size: 18)).foregroundColor(Color.zxPurple).frame(width: 44, height: 44)
 
                                 Text("AI 问答").font(.system(size: 11)).foregroundColor(Color.zxF04)
                             }.frame(maxWidth: .infinity)
                         }.foregroundColor(.primary)
                         NavigationLink(value: Route.activeRecall) {
                             VStack(spacing: 6) {
-                                Image(systemName: "brain.head.profile").font(.system(size: 18)).foregroundColor(Color.zxOrange).frame(width: 44, height: 44)
+                                Image("icon-brain").font(.system(size: 18)).foregroundColor(Color.zxOrange).frame(width: 44, height: 44)
 
                                 Text("自测").font(.system(size: 11)).foregroundColor(Color.zxF04)
                             }.frame(maxWidth: .infinity)
@@ -82,7 +82,7 @@ struct StudyHomeView: View {
                             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)
+                                Image("icon-calendar").font(.system(size: 12)).foregroundColor(Color.zxF04)
                                 Text("AI 自动排期").font(.system(size: 12)).foregroundColor(Color.zxF04)
                             }
                         }
@@ -165,7 +165,7 @@ struct StudyHomeView: View {
     private var dailyThinkingCard: some View {
         VStack(alignment: .leading, spacing: 14) {
             HStack {
-                Image(systemName: "sparkles").font(.system(size: 13)).foregroundColor(Color.zxPrimary)
+                Image("icon-sparkles").font(.system(size: 13)).foregroundColor(Color.zxPrimary)
                     .frame(width: 30, height: 30).background(Color.zxPrimarySoft).clipShape(RoundedRectangle(cornerRadius: ZXRadius.sm))
                 Text("每日思考题").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxInkPrimary)
                 Spacer()