diff --git a/AIStudyApp/AIStudyApp/Features/Library/LibrarySubpages.swift b/AIStudyApp/AIStudyApp/Features/Library/LibrarySubpages.swift
index afcd4b2..c6d5520 100644
--- a/AIStudyApp/AIStudyApp/Features/Library/LibrarySubpages.swift
+++ b/AIStudyApp/AIStudyApp/Features/Library/LibrarySubpages.swift
@@ -18,23 +18,24 @@ struct CreateLibraryPage: View {
                         ZStack {
                             RoundedRectangle(cornerRadius: 14).fill(Color.zxFill004)
                                 .overlay(RoundedRectangle(cornerRadius: 14).stroke(style: StrokeStyle(lineWidth: 1.5, dash: [6, 4])).foregroundColor(Color.zxBorder01))
-                                .frame(height: 160)
+                                .frame(width: 160, height: 160)
                             if let img = coverImage {
-                                Image(uiImage: img).resizable().scaledToFill().frame(height: 160).clipShape(RoundedRectangle(cornerRadius: 14))
+                                Image(uiImage: img).resizable().scaledToFill().frame(width: 160, height: 160).clipShape(RoundedRectangle(cornerRadius: 14))
                             } else {
                                 VStack(spacing: 8) {
                                     Image(systemName: "photo.badge.plus").font(.system(size: 28)).foregroundColor(Color.zxF04)
-                                    Text("点击上传封面图").font(.system(size: 13)).foregroundColor(Color.zxF04)
+                                    Text("点击上传").font(.system(size: 13)).foregroundColor(Color.zxF04)
                                 }
                             }
-                            if isUploadingCover { RoundedRectangle(cornerRadius: 14).fill(Color.black.opacity(0.4)).frame(height: 160); ProgressView().tint(.white) }
+                            if isUploadingCover { RoundedRectangle(cornerRadius: 14).fill(Color.black.opacity(0.4)).frame(width: 160, height: 160); ProgressView().tint(.white) }
                         }
                     }.disabled(isUploadingCover)
                 }
                 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)) }
+                VStack(alignment: .leading, spacing: 8) { Text("描述").font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035); TextEditor(text: $desc).frame(minHeight: 80).scrollContentBackground(.hidden).padding(8).background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 14)).overlay(RoundedRectangle(cornerRadius: 14).stroke(Color.zxBorder008, lineWidth: 1)) }
                 Button {
-                    guard !name.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty else { return }
+                    guard !name.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty,
+                          !desc.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty else { return }
                     isCreating = true
                     Task {
                         let kb = try? await KnowledgeBaseService.shared.create(
@@ -59,7 +60,7 @@ struct CreateLibraryPage: View {
                     .background(name.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty ? AnyView(Color.zxHairlineStrong) : AnyView(ZXGradient.ctaPurple))
                     .clipShape(RoundedRectangle(cornerRadius: 16))
                 }
-                .disabled(isCreating || name.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty)
+                .disabled(isCreating || name.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty || desc.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty)
             }.padding(.horizontal, 20).padding(.top, 20) }.scrollIndicators(.hidden) }
         }.navigationBarTitleDisplayMode(.inline).toolbarBackground(.hidden, for: .navigationBar).animatedTabBarHide()
         .photosPicker(isPresented: $showCoverPicker, selection: $coverPhotoItem, matching: .images)