diff --git a/Projects/Feature/AddWidgetFeature/Sources/AddWidgetView.swift b/Projects/Feature/AddWidgetFeature/Sources/AddWidgetView.swift
index 8c64e9dd..8988177c 100644
--- a/Projects/Feature/AddWidgetFeature/Sources/AddWidgetView.swift
+++ b/Projects/Feature/AddWidgetFeature/Sources/AddWidgetView.swift
@@ -63,6 +63,7 @@ public struct AddWidgetView: View {
             VStack(spacing: 0) {
                 widgetPreview(for: widget)
                     .padding(.top, 24)
+                    .accessibilityHidden(true)
 
                 VStack(spacing: 4) {
                     Text(widget.kind.title)
@@ -81,6 +82,8 @@ public struct AddWidgetView: View {
                     .fill(Color.cardBackground)
             }
             .padding(.horizontal, 16)
+            .accessibilityElement(children: .ignore)
+            .accessibilityLabel("\(widget.kind.title), \(widget.family.title)")
         }
     }
 
@@ -103,6 +106,7 @@ private struct WidgetGuideView: View {
 
     @State private var elapsedTime: Double = 0
     @State private var timerActive = true
+    @AccessibilityFocusState private var isGuideFocused: Bool
     private let cycleTime: Double = 10.0
 
     var currentGuideText: String {
@@ -139,6 +143,8 @@ private struct WidgetGuideView: View {
                     .frame(height: 100, alignment: .top)
                     .padding(.horizontal, 16)
                     .animation(.easeInOut, value: currentGuideText)
+                    .accessibilityFocused($isGuideFocused)
+                    .accessibilityLabel(currentGuideText)
                     .onReceive(
                         Timer.publish(
                             every: 0.5,
@@ -170,6 +176,9 @@ private struct WidgetGuideView: View {
             .onAppear {
                 timerActive = true
                 elapsedTime = 0
+                DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
+                    isGuideFocused = true
+                }
             }
         }
     }
diff --git a/Projects/Feature/AllergySettingFeature/Sources/AllergySettingView.swift b/Projects/Feature/AllergySettingFeature/Sources/AllergySettingView.swift
index dcbe5936..95223b5d 100644
--- a/Projects/Feature/AllergySettingFeature/Sources/AllergySettingView.swift
+++ b/Projects/Feature/AllergySettingFeature/Sources/AllergySettingView.swift
@@ -16,39 +16,53 @@ public struct AllergySettingView: View {
     }
 
     public var body: some View {
-        VStack {
-            ScrollView {
-                Spacer()
-                    .frame(height: 20)
+        let scrollView = ScrollView {
+            Spacer()
+                .frame(height: 20)
 
-                LazyVGrid(columns: columns, spacing: 8) {
-                    ForEach(AllergyType.allCases.indices, id: \.self) { index in
-                        let allergy = AllergyType.allCases[safe: index] ?? .turbulence
-
-                        allergyColumnView(index: index, allergy: allergy)
-                            .onTapGesture {
-                                viewStore.send(.allergyDidSelect(allergy), animation: .default)
-                            }
-                    }
-                }
-                .padding(.horizontal, 16)
-            }
-            .frame(maxWidth: .infinity, maxHeight: .infinity)
-
-            if viewStore.allergyDidTap {
-                TWButton(title: "저장") {
-                    viewStore.send(.saveButtonDidTap)
+            LazyVGrid(columns: columns, spacing: 8) {
+                ForEach(AllergyType.allCases.indices, id: \.self) { index in
+                    let allergy = AllergyType.allCases[safe: index] ?? .turbulence
+                    
+                    allergyColumnView(index: index, allergy: allergy)
+                        .onTapGesture {
+                            viewStore.send(.allergyDidSelect(allergy), animation: .default)
+                        }
                 }
-                .padding(.horizontal, 16)
-                .padding(.bottom, 8)
             }
+            .padding(.horizontal, 16)
         }
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
         .background(Color.backgroundSecondary.ignoresSafeArea())
         .navigationTitle("알레르기")
         .onAppear {
             viewStore.send(.onAppear)
         }
         .twBackButton(dismiss: dismiss)
+
+        if #available(iOS 26.0, *) {
+            scrollView
+                .safeAreaBar(edge: .bottom) {
+                    if viewStore.allergyDidTap {
+                        TWButton(title: "저장") {
+                            viewStore.send(.saveButtonDidTap)
+                        }
+                        .padding(.horizontal, 16)
+                        .padding(.bottom, 8)
+                    }
+                }
+        } else {
+            scrollView
+                .safeAreaInset(edge: .bottom) {
+                    if viewStore.allergyDidTap {
+                        TWButton(title: "저장") {
+                            viewStore.send(.saveButtonDidTap)
+                        }
+                        .padding(.horizontal, 16)
+                        .padding(.bottom, 8)
+                    }
+                }
+        }
     }
 
     @ViewBuilder
@@ -91,5 +105,8 @@ public struct AllergySettingView: View {
                 .padding(.top, 8)
                 .padding(.trailing, 16)
         }
+        .accessibilityElement(children: .ignore)
+        .accessibilityLabel(allergy.rawValue)
+        .accessibilityAddTraits(isAllergyContains ? [.isButton, .isSelected] : .isButton)
     }
 }
diff --git a/Projects/Feature/MainFeature/Sources/Components/ReviewToast.swift b/Projects/Feature/MainFeature/Sources/Components/ReviewToast.swift
index 00ca6805..b6892f41 100644
--- a/Projects/Feature/MainFeature/Sources/Components/ReviewToast.swift
+++ b/Projects/Feature/MainFeature/Sources/Components/ReviewToast.swift
@@ -5,7 +5,9 @@ import SwiftUI
 
 struct ReviewToast: View {
     @Dependency(\.featureFlagClient) private var featureFlagClient
+    @Environment(\.accessibilityReduceTransparency) var reduceTransparency
     let onTap: () -> Void
+    let onDismiss: () -> Void
 
     var body: some View {
         let baseButton = Button {
@@ -14,6 +16,7 @@ struct ReviewToast: View {
             HStack(spacing: 8) {
                 Image(systemName: "star.bubble.fill")
                     .foregroundColor(.yellow)
+                    .accessibilityHidden(true)
 
                 Text(featureFlagClient.getString(.reviewText) ?? "오늘뭐임을 더 발전시킬 수 있게 리뷰 부탁드려요!")
                     .font(.system(size: 14, weight: .medium))
@@ -22,8 +25,11 @@ struct ReviewToast: View {
             .padding(.horizontal, 16)
             .padding(.vertical, 12)
         }
+        .accessibilityLabel("앱 리뷰 남기기")
+        .accessibilityHint("탭하면 앱 스토어 리뷰 페이지로 이동합니다")
+        .accessibilityAction(.escape) { onDismiss() }
 
-        if #available(iOS 26.0, *) {
+        if #available(iOS 26.0, *), !reduceTransparency {
             baseButton
                 .glassEffect(.regular.interactive(), in: .capsule)
         } else {
diff --git a/Projects/Feature/MainFeature/Sources/MainView.swift b/Projects/Feature/MainFeature/Sources/MainView.swift
index d5234208..0931482e 100644
--- a/Projects/Feature/MainFeature/Sources/MainView.swift
+++ b/Projects/Feature/MainFeature/Sources/MainView.swift
@@ -6,6 +6,7 @@ import NoticeFeature
 import SettingsFeature
 import SwiftUI
 import TimeTableFeature
+import UIKit
 import TipKit
 import TWLog
 
@@ -14,6 +15,7 @@ public struct MainView: View {
     @ObservedObject var viewStore: ViewStoreOf<MainCore>
     @Environment(\.openURL) var openURL
     @Environment(\.calendar) var calendar
+    @Environment(\.accessibilityReduceMotion) var reduceMotion
     @Dependency(\.userDefaultsClient) var userDefaultsClient
 
     public init(store: StoreOf<MainCore>) {
@@ -28,6 +30,7 @@ public struct MainView: View {
                     .padding(.horizontal, 16)
                     .padding(.vertical, 12)
                     .accessibilityElement(children: .combine)
+                    .accessibilityAddTraits(.isStaticText)
                     .accessibilityLabel({
                         let school: String = viewStore.school
                         let grade: String = viewStore.grade
@@ -47,8 +50,6 @@ public struct MainView: View {
                     items: ["급식", "시간표"]
                 )
                 .padding(.top, 32)
-                .accessibilityLabel("메뉴 탭")
-                .accessibilityHint("급식과 시간표 중 원하는 메뉴를 선택할 수 있습니다.")
 
                 ZStack(alignment: .bottomTrailing) {
                     TabView(
@@ -86,18 +87,42 @@ public struct MainView: View {
                         Color.backgroundSecondary
                             .ignoresSafeArea()
                     }
+                    .onChange(of: viewStore.currentTab) { newTab in
+                        let tabName = newTab == 0 ? "급식" : "시간표"
+                        UIAccessibility.post(
+                            notification: .announcement,
+                            argument: "\(tabName) 탭"
+                        )
+                    }
 
                     if viewStore.isShowingReviewToast {
-                        ReviewToast {
-                            viewStore.send(.requestReview)
-                            TWLog.event(ClickReviewEventLog())
-                        }
+                        ReviewToast(
+                            onTap: {
+                                viewStore.send(.requestReview)
+                                TWLog.event(ClickReviewEventLog())
+                            },
+                            onDismiss: {
+                                viewStore.send(.hideReviewToast, animation: .default)
+                            }
+                        )
                         .frame(maxWidth: .infinity)
                         .padding(.horizontal, 16)
                         .padding(.bottom, 24)
-                        .animation(.default, value: viewStore.isShowingReviewToast)
-                        .transition(.move(edge: .bottom).combined(with: .opacity))
+                        .animation(
+                            reduceMotion ? .none : .default,
+                            value: viewStore.isShowingReviewToast
+                        )
+                        .transition(
+                            reduceMotion
+                                ? .opacity
+                                : .move(edge: .bottom).combined(with: .opacity)
+                        )
                         .onAppear {
+                            UIAccessibility.post(
+                                notification: .announcement,
+                                argument: "앱 리뷰 요청이 표시되었습니다"
+                            )
+                            guard !UIAccessibility.isVoiceOverRunning else { return }
                             DispatchQueue.main.asyncAfter(deadline: .now() + 7.5) {
                                 viewStore.send(.hideReviewToast, animation: .default)
                             }
@@ -173,7 +198,7 @@ public struct MainView: View {
                         }
                     }
                     .accessibilityLabel("날짜 선택")
-                    .accessibilityHint("클릭하여 날짜를 선택할 수 있습니다")
+                    .accessibilityRemoveTraits(.isButton)
                 }
 
                 ToolbarItemGroup(placement: .topBarTrailing) {
diff --git a/Projects/Feature/MealFeature/Sources/Weekly/WeeklyMealView.swift b/Projects/Feature/MealFeature/Sources/Weekly/WeeklyMealView.swift
index d3fbfc99..6adc73d0 100644
--- a/Projects/Feature/MealFeature/Sources/Weekly/WeeklyMealView.swift
+++ b/Projects/Feature/MealFeature/Sources/Weekly/WeeklyMealView.swift
@@ -153,8 +153,8 @@ public struct WeeklyMealView: View {
         let calText: String = String(format: "%.1f", subMeal.cal)
         let calLabel: String = "\(calText) Kcal"
         let titleText: String = relativeTitle(for: dayMeal.date, mealType: type)
-        let accessibilityText: String = "\(titleText) \(calText) 칼로리"
         let mealTexts: [String] = subMeal.meals.map { mealDisplay(meal: $0) }
+        let accessibilityText: String = "\(titleText) \(calText) 칼로리. \(mealTexts.joined(separator: ", "))"
         let dateText: String = "\(dayMeal.date.formatted(.dateTime.month().day().weekday(.wide))) \(type.display)"
         let joinedMeals: String = mealTexts.joined(separator: "\n")
         let shareText: String = "\(dateText)\n\(joinedMeals)"
@@ -213,6 +213,20 @@ public struct WeeklyMealView: View {
         mealCardView
             .accessibilityElement(children: .combine)
             .accessibilityLabel(accessibilityText)
+            .accessibilityAction(named: "텍스트로 복사") {
+                UIPasteboard.general.string = shareText
+                TWLog.event(ShareMealEventLog())
+            }
+            .accessibilityAction(named: "이미지로 복사") {
+                if #available(iOS 16.0, *) {
+                    let renderer = ImageRenderer(content: mealCardView)
+                    renderer.scale = displayScale
+                    if let image = renderer.uiImage {
+                        UIPasteboard.general.image = image
+                        TWLog.event(ShareMealImageEventLog())
+                    }
+                }
+            }
             .contextMenu {
                 Button {
                     UIPasteboard.general.string = shareText
diff --git a/Projects/Feature/SchoolSettingFeature/Sources/SchoolSettingView.swift b/Projects/Feature/SchoolSettingFeature/Sources/SchoolSettingView.swift
index 31fa2222..3a0c0411 100644
--- a/Projects/Feature/SchoolSettingFeature/Sources/SchoolSettingView.swift
+++ b/Projects/Feature/SchoolSettingFeature/Sources/SchoolSettingView.swift
@@ -17,6 +17,7 @@ public struct SchoolSettingView: View {
     private let isNavigationPushed: Bool
     @FocusState private var focusField: FocusField?
     @Environment(\.dismiss) var dismiss
+    @Environment(\.accessibilityReduceMotion) private var reduceMotion
 
     public init(
         store: StoreOf<SchoolSettingCore>,
@@ -46,9 +47,9 @@ public struct SchoolSettingView: View {
                     schoolSearchResults(viewStore: viewStore)
                 }
             }
-            .animation(.default, value: viewStore.grade)
-            .animation(.default, value: viewStore.class)
-            .animation(.default, value: viewStore.school)
+            .animation(reduceMotion ? .none : .default, value: viewStore.grade)
+            .animation(reduceMotion ? .none : .default, value: viewStore.class)
+            .animation(reduceMotion ? .none : .default, value: viewStore.school)
             .padding(.horizontal, 16)
             .padding(.top, 24)
             .onChange(of: focusField) { newValue in
@@ -124,14 +125,16 @@ public struct SchoolSettingView: View {
                     )
                 )
                 .disabled(true)
-                .accessibilityLabel("학과 선택")
-                .accessibilityHint("학과를 선택하려면 두 번 탭하세요")
             }
             .padding(.bottom, 16)
             .onTapGesture {
                 viewStore.send(.majorTextFieldDidTap, animation: .default)
                 focusField = nil
             }
+            .accessibilityElement(children: .ignore)
+            .accessibilityLabel(viewStore.major.isEmpty ? "학과 선택" : "학과: \(viewStore.major)")
+            .accessibilityHint("탭하면 학과 선택 시트가 열립니다")
+            .accessibilityAddTraits(.isButton)
         }
     }
 
@@ -205,21 +208,19 @@ public struct SchoolSettingView: View {
                 ScrollView {
                     LazyVStack(spacing: 16) {
                         ForEach(viewStore.schoolList, id: \.schoolCode) { school in
-                            HStack {
-                                schoolRowView(school: school)
-
-                                Spacer()
-                            }
-                            .frame(maxWidth: .infinity)
-                            .background {
-                                Color.backgroundMain
-                            }
-                            .contentShape(.rect)
-                            .onTapGesture {
+                            Button {
                                 viewStore.send(.schoolRowDidSelect(school), animation: .default)
                                 focusField = .grade
+                            } label: {
+                                HStack {
+                                    schoolRowView(school: school)
+
+                                    Spacer()
+                                }
+                                .frame(maxWidth: .infinity, minHeight: 44)
+                                .contentShape(.rect)
                             }
-                            .accessibilityElement(children: .combine)
+                            .buttonStyle(.plain)
                             .accessibilityLabel("\(school.name) \(school.location)")
                             .accessibilityHint("이 학교를 선택하려면 두 번 탭하세요")
                         }
diff --git a/Projects/Feature/SettingsFeature/Sources/SettingsView.swift b/Projects/Feature/SettingsFeature/Sources/SettingsView.swift
index c70f11e4..5fbe139e 100644
--- a/Projects/Feature/SettingsFeature/Sources/SettingsView.swift
+++ b/Projects/Feature/SettingsFeature/Sources/SettingsView.swift
@@ -206,6 +206,21 @@ public struct SettingsView: View {
                 .labelsHidden()
                 .tint(.textPrimary)
         }
+        .accessibilityElement(children: .ignore)
+        .accessibilityLabel(text)
+        .accessibilityValue(isOn.wrappedValue ? "활성화됨" : "비활성화됨")
+        .accessibilityAddTraits(isToggleTraits)
+        .accessibilityAction {
+            isOn.wrappedValue.toggle()
+        }
+    }
+
+    private var isToggleTraits: AccessibilityTraits {
+        if #available(iOS 17.0, *) {
+            return .isToggle
+        } else {
+            return .isButton
+        }
     }
 
     @ViewBuilder
diff --git a/Projects/Feature/TimeTableFeature/Sources/Weekly/WeeklyTimeTableCore.swift b/Projects/Feature/TimeTableFeature/Sources/Weekly/WeeklyTimeTableCore.swift
index a8fc2a92..834a5a40 100644
--- a/Projects/Feature/TimeTableFeature/Sources/Weekly/WeeklyTimeTableCore.swift
+++ b/Projects/Feature/TimeTableFeature/Sources/Weekly/WeeklyTimeTableCore.swift
@@ -27,6 +27,7 @@ public struct WeeklyTimeTableCore: Reducer {
 
     public struct WeeklyTimeTable: Equatable {
         public let weekdays: [String]
+        public let fullWeekdays: [String]
         public let dates: [String]
         public let periods: [Int]
         public let subjects: [[String]]
@@ -34,12 +35,14 @@ public struct WeeklyTimeTableCore: Reducer {
 
         public init(
             weekdays: [String],
+            fullWeekdays: [String],
             dates: [String],
             periods: [Int],
             subjects: [[String]],
             todayIndex: Int? = nil
         ) {
             self.weekdays = weekdays
+            self.fullWeekdays = fullWeekdays
             self.dates = dates
             self.periods = periods
             self.subjects = subjects
@@ -203,6 +206,10 @@ public struct WeeklyTimeTableCore: Reducer {
         let weekdays =
             showWeekend
                 ? ["월", "화", "수", "목", "금", "토", "일"] : ["월", "화", "수", "목", "금"]
+        let fullWeekdays =
+            showWeekend
+                ? ["월요일", "화요일", "수요일", "목요일", "금요일", "토요일", "일요일"]
+                : ["월요일", "화요일", "수요일", "목요일", "금요일"]
         var dates: [String] = []
 
         let dateFormatter = DateFormatter()
@@ -274,6 +281,7 @@ public struct WeeklyTimeTableCore: Reducer {
 
         return WeeklyTimeTable(
             weekdays: weekdays,
+            fullWeekdays: fullWeekdays,
             dates: dates,
             periods: periods,
             subjects: weeklySubjects,
diff --git a/Projects/Feature/TimeTableFeature/Sources/Weekly/WeeklyTimeTableView.swift b/Projects/Feature/TimeTableFeature/Sources/Weekly/WeeklyTimeTableView.swift
index 8e091b7c..465c72c8 100644
--- a/Projects/Feature/TimeTableFeature/Sources/Weekly/WeeklyTimeTableView.swift
+++ b/Projects/Feature/TimeTableFeature/Sources/Weekly/WeeklyTimeTableView.swift
@@ -226,11 +226,17 @@ public struct WeeklyTimeTableView: View {
                 .frame(width: firstColumnWidth, height: headerHeight)
 
             ForEach(0..<weeklyTimeTable.weekdays.count, id: \.self) { index in
+                let isToday = weeklyTimeTable.isToday(weekdayIndex: index)
                 VStack(spacing: 2) {
                     Text(weeklyTimeTable.weekdays[index])
                         .twFont(horizontalSizeClass == .regular ? .body1 : .body2, color: .textSecondary)
                 }
                 .frame(width: cellWidth, height: headerHeight)
+                .accessibilityLabel(
+                    isToday
+                        ? "\(weeklyTimeTable.fullWeekdays[index]), 오늘"
+                        : weeklyTimeTable.fullWeekdays[index]
+                )
             }
         }
     }
@@ -247,20 +253,26 @@ public struct WeeklyTimeTableView: View {
             Text("\(period)")
                 .twFont(.body2, color: .textSecondary)
                 .frame(width: firstColumnWidth, height: cellSide)
+                .accessibilityLabel("\(period)교시")
 
             ForEach(0..<weeklyTimeTable.weekdays.count, id: \.self) { weekdayIndex in
                 let subject = weeklyTimeTable.subject(
                     for: period - 1,
                     weekday: weekdayIndex
                 )
+                let isToday = weeklyTimeTable.isToday(weekdayIndex: weekdayIndex)
+                let fullWeekdayName = weeklyTimeTable.fullWeekdays[weekdayIndex]
+                let accessLabel: String = subject.isEmpty
+                    ? "\(fullWeekdayName) \(period)교시 수업 없음"
+                    : "\(fullWeekdayName) \(period)교시 \(subject)\(isToday ? ", 오늘" : "")"
 
                 Text(subject)
                     .twFont(
                         fontForCell(
-                            isToday: weeklyTimeTable.isToday(weekdayIndex: weekdayIndex),
+                            isToday: isToday,
                             horizontalSizeClass: horizontalSizeClass
                         ),
-                        color: weeklyTimeTable.isToday(weekdayIndex: weekdayIndex) ? Color.extraBlack : .textSecondary
+                        color: isToday ? Color.extraBlack : .textSecondary
                     )
                     .multilineTextAlignment(.center)
                     .minimumScaleFactor(0.3)
@@ -274,6 +286,7 @@ public struct WeeklyTimeTableView: View {
                                 .frame(height: 1.0)
                         }
                     }
+                    .accessibilityLabel(accessLabel)
             }
         }
     }
diff --git a/Projects/UserInterface/DesignSystem/Resources/Colors.xcassets/DesignSystem/UnselectedPrimary.colorset/Contents.json b/Projects/UserInterface/DesignSystem/Resources/Colors.xcassets/DesignSystem/UnselectedPrimary.colorset/Contents.json
index 319dfafc..948632f4 100644
--- a/Projects/UserInterface/DesignSystem/Resources/Colors.xcassets/DesignSystem/UnselectedPrimary.colorset/Contents.json
+++ b/Projects/UserInterface/DesignSystem/Resources/Colors.xcassets/DesignSystem/UnselectedPrimary.colorset/Contents.json
@@ -5,9 +5,9 @@
         "color-space" : "srgb",
         "components" : {
           "alpha" : "1.000",
-          "blue" : "0x8E",
-          "green" : "0x8E",
-          "red" : "0x8E"
+          "blue" : "0x76",
+          "green" : "0x76",
+          "red" : "0x76"
         }
       },
       "idiom" : "universal"
@@ -23,9 +23,9 @@
         "color-space" : "srgb",
         "components" : {
           "alpha" : "1.000",
-          "blue" : "0x70",
-          "green" : "0x5C",
-          "red" : "0x5C"
+          "blue" : "0x94",
+          "green" : "0x94",
+          "red" : "0x94"
         }
       },
       "idiom" : "universal"
diff --git a/Projects/UserInterface/DesignSystem/Sources/TWBottomSheet/TWBottomSheet.swift b/Projects/UserInterface/DesignSystem/Sources/TWBottomSheet/TWBottomSheet.swift
index f00b419a..3c1828aa 100644
--- a/Projects/UserInterface/DesignSystem/Sources/TWBottomSheet/TWBottomSheet.swift
+++ b/Projects/UserInterface/DesignSystem/Sources/TWBottomSheet/TWBottomSheet.swift
@@ -8,6 +8,8 @@ struct TWBottomSheet<T: View>: ViewModifier {
     var content: () -> T
     var height: CGFloat
     var backgroundColor: Color
+    @Environment(\.accessibilityReduceMotion) private var reduceMotion
+    @Environment(\.accessibilityReduceTransparency) private var reduceTransparency
     var sheetDragging: some Gesture {
         DragGesture(minimumDistance: 0, coordinateSpace: .global)
             .onChanged { value in
@@ -46,7 +48,7 @@ struct TWBottomSheet<T: View>: ViewModifier {
 
             ZStack(alignment: .bottom) {
                 if isShowing {
-                    Color.lightBox
+                    (reduceTransparency ? Color.black.opacity(0.6) : Color.lightBox)
                         .ignoresSafeArea()
                         .onTapGesture {
                             withAnimation {
@@ -55,6 +57,8 @@ struct TWBottomSheet<T: View>: ViewModifier {
                         }
                         .gesture(sheetDragging)
                         .transition(.opacity)
+                        .accessibilityLabel("닫기")
+                        .accessibilityAddTraits(.isButton)
 
                     ZStack {
                         backgroundColor
@@ -72,6 +76,12 @@ struct TWBottomSheet<T: View>: ViewModifier {
                     }
                     .fixedSize(horizontal: false, vertical: true)
                     .transition(.move(edge: .bottom))
+                    .accessibilityAddTraits(.isModal)
+                    .accessibilityAction(.escape) {
+                        withAnimation {
+                            isShowing = false
+                        }
+                    }
                     .if(height != .infinity) {
                         $0.frame(height: height)
                     }
@@ -80,7 +90,7 @@ struct TWBottomSheet<T: View>: ViewModifier {
             .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .bottom)
             .ignoresSafeArea()
         }
-        .animation(.default, value: isShowing)
+        .animation(reduceMotion ? .none : .default, value: isShowing)
     }
 }
 
diff --git a/Projects/UserInterface/DesignSystem/Sources/TWButton/TWButtonStyle.swift b/Projects/UserInterface/DesignSystem/Sources/TWButton/TWButtonStyle.swift
index 95d01444..3f678430 100644
--- a/Projects/UserInterface/DesignSystem/Sources/TWButton/TWButtonStyle.swift
+++ b/Projects/UserInterface/DesignSystem/Sources/TWButton/TWButtonStyle.swift
@@ -45,10 +45,16 @@ private extension TWButtonStyle {
         }
 
         var body: some View {
-            configuration.label
+            let contentView = configuration.label
                 .twFont(.headline4, color: foreground)
-                .background(background)
-                .cornerRadius(8)
+
+            if #available(iOS 26.0, watchOS 26.0, *) {
+                contentView
+                    .glassEffect(.clear.tint(background).interactive(), in: .rect(cornerRadius: 8))
+            } else {
+                contentView
+                    .background(background, in: .rect(cornerRadius: 8))
+            }
         }
     }
 
@@ -74,9 +80,16 @@ private extension TWButtonStyle {
         }
 
         var body: some View {
-            configuration.label
+            let contentView = configuration.label
                 .twFont(.headline4, color: foreground)
-                .background(background)
+
+            if #available(iOS 26.0, watchOS 26.0, *) {
+                contentView
+                    .glassEffect(.clear.tint(background).interactive(), in: .rect)
+            } else {
+                contentView
+                    .background(background)
+            }
         }
     }
 }
diff --git a/Projects/UserInterface/DesignSystem/Sources/TWButton/View+twBackButton.swift b/Projects/UserInterface/DesignSystem/Sources/TWButton/View+twBackButton.swift
index d48f6461..2fc3249a 100644
--- a/Projects/UserInterface/DesignSystem/Sources/TWButton/View+twBackButton.swift
+++ b/Projects/UserInterface/DesignSystem/Sources/TWButton/View+twBackButton.swift
@@ -21,6 +21,7 @@ public extension View {
                                 .frame(width: 9, height: 16)
                                 .foregroundColor(Color.extraBlack)
                         }
+                        .accessibilityLabel("뒤로")
                     }
                 }
                 .navigationBarBackButtonHidden(true)
diff --git a/Projects/UserInterface/DesignSystem/Sources/TWFont/Font+tw.swift b/Projects/UserInterface/DesignSystem/Sources/TWFont/Font+tw.swift
index 7b7a8f63..fe5febf4 100644
--- a/Projects/UserInterface/DesignSystem/Sources/TWFont/Font+tw.swift
+++ b/Projects/UserInterface/DesignSystem/Sources/TWFont/Font+tw.swift
@@ -7,7 +7,7 @@ public extension View {
     ) -> some View {
         self
             .font(.tw(style))
-            .foregroundColor(color)
+            .foregroundStyle(color)
     }
 
     func twFont(
diff --git a/Projects/UserInterface/DesignSystem/Sources/TWTextField/TWTextField.swift b/Projects/UserInterface/DesignSystem/Sources/TWTextField/TWTextField.swift
index 55073f2e..607bf05f 100644
--- a/Projects/UserInterface/DesignSystem/Sources/TWTextField/TWTextField.swift
+++ b/Projects/UserInterface/DesignSystem/Sources/TWTextField/TWTextField.swift
@@ -5,6 +5,7 @@ public struct TWTextField: View {
     private var placeholder: String
     private var onCommit: () -> Void
     @FocusState private var isFocused: Bool
+    @Environment(\.accessibilityReduceMotion) private var reduceMotion
 
     public init(
         _ placeholder: String = "",
@@ -27,10 +28,11 @@ public struct TWTextField: View {
                 }
                 .overlay {
                     RoundedRectangle(cornerRadius: 8)
-                        .stroke(isFocused ? Color.extraBlack : .clear, lineWidth: 1)
+                        .strokeBorder(isFocused ? Color.extraBlack : .clear, lineWidth: 1)
                 }
                 .focused($isFocused)
                 .onSubmit(onCommit)
+                .accessibilityLabel(placeholder)
                 .zIndex(1)
 
             Group {
@@ -40,6 +42,7 @@ public struct TWTextField: View {
                         .offset(y: -44)
                         .transition(.offset(y: 20))
                         .zIndex(0)
+                        .accessibilityHidden(true)
                 } else {
                     Text(placeholder)
                         .twFont(.body1, color: .unselectedPrimary)
@@ -48,15 +51,16 @@ public struct TWTextField: View {
                             isFocused = true
                         }
                         .zIndex(1)
+                        .accessibilityHidden(true)
                 }
             }
-            .animation(.default, value: isFocused)
+            .animation(reduceMotion ? .none : .default, value: isFocused)
 
             HStack {
                 Spacer()
 
                 Button {
-                    withAnimation {
+                    withAnimation(reduceMotion ? .none : nil) {
                         text = ""
                     }
                 } label: {
@@ -69,11 +73,13 @@ public struct TWTextField: View {
                         EmptyView()
                     }
                 }
+                .accessibilityLabel("입력 내용 삭제")
+                .accessibilityHidden(!isFocused || text.isEmpty)
             }
             .zIndex(2)
             .padding(.trailing)
-            .animation(.default, value: text)
-            .animation(.default, value: isFocused)
+            .animation(reduceMotion ? .none : .default, value: text)
+            .animation(reduceMotion ? .none : .default, value: isFocused)
         }
     }
 }
diff --git a/Projects/UserInterface/DesignSystem/Sources/TopTabbar/TopTabbar.swift b/Projects/UserInterface/DesignSystem/Sources/TopTabbar/TopTabbar.swift
index 65ac1894..6ea55ac7 100644
--- a/Projects/UserInterface/DesignSystem/Sources/TopTabbar/TopTabbar.swift
+++ b/Projects/UserInterface/DesignSystem/Sources/TopTabbar/TopTabbar.swift
@@ -26,10 +26,11 @@ public struct TopTabbarView: View {
                         currentTab = index
                     }
                 } label: {
-                    VStack {
+                    VStack(spacing: 0) {
                         Text(itemTitle)
                             .twFont(.headline4)
                             .foregroundColor(tabForeground)
+                            .frame(minHeight: 44)
 
                         if isSelected {
                             RoundedRectangle(cornerRadius: 17)
@@ -41,6 +42,7 @@ public struct TopTabbarView: View {
                         }
                     }
                     .frame(maxWidth: .infinity)
+                    .contentShape(Rectangle())
                     .background {
                         Color.backgroundMain
                     }