diff --git a/AIStudyApp/AIStudyApp/Features/Library/LibraryHomeView.swift b/AIStudyApp/AIStudyApp/Features/Library/LibraryHomeView.swift
index e7be073..c04a6db 100644
--- a/AIStudyApp/AIStudyApp/Features/Library/LibraryHomeView.swift
+++ b/AIStudyApp/AIStudyApp/Features/Library/LibraryHomeView.swift
@@ -18,7 +18,7 @@ struct LibraryHomeView: View {
                             .overlay(RoundedRectangle(cornerRadius: 10).stroke(Color.zxBorder008, lineWidth: 1))
                     }.accessibilityLabel("搜索知识库")
                     NavigationLink(value: Route.libraryCreate) {
-                        Image("icon-plus").resizable().scaledToFit().frame(width: 14, height: 14).foregroundColor(.white)
+                        Image("icon-plus").resizable().scaledToFit().frame(width: 18, height: 18).foregroundColor(.white)
                             .frame(width: 36, height: 36).background(ZXGradient.brand).clipShape(RoundedRectangle(cornerRadius: 10))
                     }.accessibilityLabel("创建新知识库")
                 }.padding(.horizontal, 20).padding(.top, 8).padding(.bottom, 12)
diff --git a/AIStudyApp/AIStudyApp/Features/Library/LibrarySubpages.swift b/AIStudyApp/AIStudyApp/Features/Library/LibrarySubpages.swift
index 5b27aad..fb0144f 100644
--- a/AIStudyApp/AIStudyApp/Features/Library/LibrarySubpages.swift
+++ b/AIStudyApp/AIStudyApp/Features/Library/LibrarySubpages.swift
@@ -224,7 +224,7 @@ struct LibraryDetailPage: View {
                                         Button {
                                             Task { await deleteSource(src) }
                                         } label: {
-                                            Image("icon-trash").resizable().scaledToFit().frame(width: 16, height: 16).foregroundColor(Color.zxF03)
+                                            Image("icon-trash").resizable().scaledToFit().frame(width: 18, height: 18).foregroundColor(Color.zxF03)
                                         }
                                     }
                                     .padding(12).background(Color.zxFill003).clipShape(RoundedRectangle(cornerRadius: 14))
@@ -256,14 +256,14 @@ struct LibraryDetailPage: View {
                     Button {
                         showBatchDeleteConfirm = true
                     } label: {
-                        Image("icon-trash").resizable().scaledToFit().frame(width: 16, height: 16).foregroundColor(selectedIds.isEmpty ? Color.zxF03 : Color.zxCoral)
+                        Image("icon-trash").resizable().scaledToFit().frame(width: 18, height: 18).foregroundColor(selectedIds.isEmpty ? Color.zxF03 : Color.zxCoral)
                     }
                     .disabled(selectedIds.isEmpty)
                 }
             } else {
                 ToolbarItem(placement: .topBarLeading) {
                     Button { showDeleteConfirm = true } label: {
-                        Image("icon-trash").resizable().scaledToFit().frame(width: 16, height: 16).foregroundColor(Color.zxF03)
+                        Image("icon-trash").resizable().scaledToFit().frame(width: 18, height: 18).foregroundColor(Color.zxF03)
                     }
                 }
                 ToolbarItem(placement: .topBarTrailing) {
@@ -273,7 +273,7 @@ struct LibraryDetailPage: View {
                 }
                 ToolbarItem(placement: .topBarTrailing) {
                     NavigationLink(value: Route.addKnowledge(knowledgeBaseId: knowledgeBaseId)) {
-                        Image("icon-plus").resizable().scaledToFit().frame(width: 14, height: 14).foregroundColor(Color.zxPrimary)
+                        Image("icon-plus").resizable().scaledToFit().frame(width: 18, height: 18).foregroundColor(Color.zxF05)
                     }
                 }
                 ToolbarItem(placement: .topBarTrailing) {
diff --git a/AIStudyApp/AIStudyApp/Features/Quiz/QuizViews.swift b/AIStudyApp/AIStudyApp/Features/Quiz/QuizViews.swift
index a3a0f8e..477559a 100644
--- a/AIStudyApp/AIStudyApp/Features/Quiz/QuizViews.swift
+++ b/AIStudyApp/AIStudyApp/Features/Quiz/QuizViews.swift
@@ -33,7 +33,7 @@ struct QuizListView: View {
                             Button {
                                 Task { await generateQuiz() }
                             } label: {
-                                HStack { Image("icon-plus").resizable().scaledToFit().frame(width: 14, height: 14); Text("生成新测验") }.font(.system(size: 14, weight: .medium)).foregroundColor(Color.zxPrimary).frame(maxWidth: .infinity).frame(height: 44).background(Color.zxPrimarySoft).clipShape(RoundedRectangle(cornerRadius: 12))
+                                HStack { Image("icon-plus").resizable().scaledToFit().frame(width: 16, height: 16); Text("生成新测验") }.font(.system(size: 14, weight: .medium)).foregroundColor(Color.zxPrimary).frame(maxWidth: .infinity).frame(height: 44).background(Color.zxPrimarySoft).clipShape(RoundedRectangle(cornerRadius: 12))
                             }.disabled(isGenerating)
                             ForEach(quizzes) { q in
                                 NavigationLink(value: Route.quizTake(quizId: q.id)) {