diff --git a/all_code.txt b/all_code.txt
index b9792b1..6bd585a 100644
--- a/all_code.txt
+++ b/all_code.txt
@@ -2176,7 +2176,8 @@ function startLockStatusPolling() {
                     newLockState.add(lockKey); // 記憶體加入 Host 標籤
                     
                     const safePath = path.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
-                    const targetBtns = document.querySelectorAll(`.edit-btn[data-path="${safePath}"]`);
+                    // 🌟 擴大選擇器：同時選取完全匹配的節點，以及所有子節點
+                    const targetBtns = document.querySelectorAll(`.edit-btn[data-path="${safePath}"], .edit-btn[data-path^="${safePath}::"]`);
                     
                     targetBtns.forEach(btn => {
                         // 略過目前正在編輯的那個實體按鈕
@@ -2185,11 +2186,18 @@ function startLockStatusPolling() {
                         if (btn.innerText !== "🔒") {
                             btn.style.pointerEvents = 'none';
                             btn.style.opacity = '0.2';
-                            // 判斷是別人鎖的，還是自己在另一個視圖鎖的
-                            if (lockInfo.user_id !== SESSION_USER_ID) {
-                                btn.title = `🔒 此區塊正由 [${lockInfo.username}] 編輯中`;
+                            
+                            const btnPath = btn.getAttribute('data-path');
+                            if (btnPath === path) {
+                                // 判斷是別人鎖的，還是自己在另一個視圖鎖的
+                                if (lockInfo.user_id !== SESSION_USER_ID) {
+                                    btn.title = `🔒 此區塊正由 [${lockInfo.username}] 編輯中`;
+                                } else {
+                                    btn.title = `🔒 您正在另一個視圖編輯此項目`;
+                                }
                             } else {
-                                btn.title = `🔒 您正在另一個視圖編輯此項目`;
+                                // 子節點被父節點鎖定
+                                btn.title = `🔒 父層級已被鎖定，無法編輯此項目`;
                             }
                             btn.innerText = "🔒";
                         }
@@ -2203,14 +2211,33 @@ function startLockStatusPolling() {
                     // 🛡️ 嚴格限制：只解除「當前設備」且「已不在新鎖定清單中」的節點
                     if (oldHost === host && !newLockState.has(oldKey)) {
                         const safePath = oldPath.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
-                        const targetBtns = document.querySelectorAll(`.edit-btn[data-path="${safePath}"]`);
+                        // 🌟 擴大選擇器：同時選取完全匹配的節點，以及所有子節點
+                        const targetBtns = document.querySelectorAll(`.edit-btn[data-path="${safePath}"], .edit-btn[data-path^="${safePath}::"]`);
                         
                         targetBtns.forEach(btn => {
                             if (btn.innerText === "🔒") {
-                                btn.style.pointerEvents = 'auto';
-                                btn.style.opacity = '0.3';
-                                btn.title = "鎖定並編輯此項目";
-                                btn.innerText = "✏️";
+                                const btnPath = btn.getAttribute('data-path');
+                                let stillLockedByOther = false;
+                                
+                                // 檢查自己是否還在鎖定清單中
+                                if (currentLocks[btnPath]) {
+                                    stillLockedByOther = true;
+                                } else {
+                                    // 檢查是否有其他父節點鎖定它
+                                    for (const lockedPath of Object.keys(currentLocks)) {
+                                        if (btnPath.startsWith(lockedPath + "::")) {
+                                            stillLockedByOther = true;
+                                            break;
+                                        }
+                                    }
+                                }
+                                
+                                if (!stillLockedByOther) {
+                                    btn.style.pointerEvents = 'auto';
+                                    btn.style.opacity = '0.3';
+                                    btn.title = "鎖定並編輯此項目";
+                                    btn.innerText = "✏️";
+                                }
                             }
                         });
                     }
@@ -4021,6 +4048,9 @@ function escapeHTML(str) {
 export const SESSION_USER_ID = crypto.randomUUID ? crypto.randomUUID() : 'user-' + Math.random().toString(36).substr(2, 9);
 const ACTIVE_HEARTBEATS = {}; 
 
+// 🌟 新增：用來防禦「秒按取消」導致的非同步渲染競爭危害
+const activeEditSessions = new Set();
+
 export let currentEditPath = null;
 export let currentEditElementId = null;
 export let currentEditIsSuccess = false;
@@ -4066,6 +4096,10 @@ async function sendHeartbeat(path, host, intervalId, lockKey) {
 // ==========================================
 
 export async function startEditFolder(path, elementId) {
+    // 🚨 防護 1：防止連點或重複執行
+    if (activeEditSessions.has(elementId)) return;
+    activeEditSessions.add(elementId); // 立即標記進入編輯狀態的意圖
+
     const connInfo = getGlobalConnectionInfo();
     const username = connInfo ? connInfo.user : 'admin';
     const host = connInfo ? connInfo.host : ''; 
@@ -4073,9 +4107,41 @@ export async function startEditFolder(path, elementId) {
 
     const currentMode = document.getElementById('configTask').value === 'form-full-config' ? 'full' : 'running';
 
+    // 立即讓按鈕呈現讀取中，防止使用者焦慮連點
+    const editBtn = document.getElementById(`edit-btn-${elementId}`);
+    if (editBtn) {
+        editBtn.style.pointerEvents = 'none';
+        editBtn.innerText = "⏳";
+    }
+
     try {
         const result = await apiAcquireLock(path, SESSION_USER_ID, username, host);
-        if (result.status === 409) return alert(`⚠️ ${result.data.detail}`); 
+        
+        // 🚨 防護 2：如果在等待後端上鎖的期間，使用者已經按了取消
+        if (!activeEditSessions.has(elementId)) {
+            if (result.status === 200 || (result.data && result.data.status === 'success')) {
+                // 🌟 補上防閃爍冷卻，防止輪詢抓到時間差
+                if (!window.recentlyReleasedLocks) window.recentlyReleasedLocks = {};
+                window.recentlyReleasedLocks[`${host}@@${path}`] = Date.now();
+                apiReleaseLock(path, SESSION_USER_ID, host); // 默默把剛拿到的鎖還回去
+            }
+            if (editBtn) {
+                editBtn.style.pointerEvents = 'auto';
+                editBtn.style.opacity = '0.3';
+                editBtn.title = "鎖定並編輯此項目";
+                editBtn.innerText = "✏️";
+            }
+            return; // 立即中斷，絕不觸碰 UI
+        }
+
+        if (result.status === 409) {
+            activeEditSessions.delete(elementId);
+            if (editBtn) {
+                editBtn.style.pointerEvents = 'auto';
+                editBtn.innerText = "✏️";
+            }
+            return alert(`⚠️ ${result.data.detail}`); 
+        }
         
         if (result.data.status === 'success') {
             if (ACTIVE_HEARTBEATS[lockKey]) clearInterval(ACTIVE_HEARTBEATS[lockKey]);
@@ -4094,16 +4160,22 @@ export async function startEditFolder(path, elementId) {
             }
             
             const safePath = path.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
-            document.querySelectorAll(`.edit-btn[data-path="${safePath}"]`).forEach(btn => {
+            // 🌟 擴大選擇器：連同所有子節點一起秒級鎖定
+            document.querySelectorAll(`.edit-btn[data-path="${safePath}"], .edit-btn[data-path^="${safePath}::"]`).forEach(btn => {
                 if (btn.id !== `edit-btn-${elementId}`) {
                     btn.style.pointerEvents = 'none';
                     btn.style.opacity = '0.2';
-                    btn.title = `🔒 您正在另一個視圖編輯此項目`;
+                    
+                    const btnPath = btn.getAttribute('data-path');
+                    if (btnPath === path) {
+                        btn.title = `🔒 您正在另一個視圖編輯此項目`;
+                    } else {
+                        btn.title = `🔒 父層級已被鎖定，無法編輯此項目`;
+                    }
                     btn.innerText = "🔒";
                 }
             });
             
-            const editBtn = document.getElementById(`edit-btn-${elementId}`);
             if (editBtn) editBtn.style.display = 'none';
             
             const actionBtn = document.getElementById(`actions-${elementId}`);
@@ -4122,12 +4194,17 @@ export async function startEditFolder(path, elementId) {
             let optData = {};
             try { optData = await apiGetLeafOptions(host, currentMode); } catch (e) {}
 
-            const pathsToSync = [];
+            // 🚨 防護 3：如果等待 API 期間使用者按了取消，立刻中斷後續渲染
+            if (!activeEditSessions.has(elementId)) return;
 
+            const pathsToSync = [];
             const containersArray = Array.from(leafContainers);
             const CHUNK_SIZE = 50; 
 
             for (let i = 0; i < containersArray.length; i += CHUNK_SIZE) {
+                // 🚨 防護 4：如果分批渲染期間使用者按了取消，立刻中斷
+                if (!activeEditSessions.has(elementId)) return;
+
                 const chunk = containersArray.slice(i, i + CHUNK_SIZE);
                 
                 chunk.forEach(container => {
@@ -4174,11 +4251,20 @@ export async function startEditFolder(path, elementId) {
             if (pathsToSync.length > 0) apiSyncLeafOptions(host, pathsToSync, currentMode, username, connInfo.pass);
         }
     } catch (error) {
+        activeEditSessions.delete(elementId);
+        if (editBtn) {
+            editBtn.style.pointerEvents = 'auto';
+            editBtn.innerText = "✏️";
+        }
         alert("❌ 無法連線到鎖定伺服器：" + error.message);
     }
 }
 
 export async function startEditLeaf(path, elementId) {
+    // 🚨 防護 1：防止連點或重複執行
+    if (activeEditSessions.has(elementId)) return;
+    activeEditSessions.add(elementId);
+
     const connInfo = getGlobalConnectionInfo();
     const username = connInfo ? connInfo.user : 'admin';
     const host = connInfo ? connInfo.host : '';
@@ -4186,9 +4272,40 @@ export async function startEditLeaf(path, elementId) {
 
     const currentMode = document.getElementById('configTask').value === 'form-full-config' ? 'full' : 'running';
 
+    const editBtn = document.getElementById(`edit-btn-${elementId}`);
+    if (editBtn) {
+        editBtn.style.pointerEvents = 'none';
+        editBtn.innerText = "⏳";
+    }
+
     try {
         const result = await apiAcquireLock(path, SESSION_USER_ID, username, host);
-        if (result.status === 409) return alert(`⚠️ ${result.data.detail}`); 
+        
+        // 🚨 防護 2：如果在等待後端上鎖的期間，使用者已經按了取消
+        if (!activeEditSessions.has(elementId)) {
+            if (result.status === 200 || (result.data && result.data.status === 'success')) {
+                // 🌟 補上防閃爍冷卻，防止輪詢抓到時間差
+                if (!window.recentlyReleasedLocks) window.recentlyReleasedLocks = {};
+                window.recentlyReleasedLocks[`${host}@@${path}`] = Date.now();
+                apiReleaseLock(path, SESSION_USER_ID, host);
+            }
+            if (editBtn) {
+                editBtn.style.pointerEvents = 'auto';
+                editBtn.style.opacity = '0.3';
+                editBtn.title = "鎖定並編輯此項目";
+                editBtn.innerText = "✏️";
+            }
+            return;
+        }
+
+        if (result.status === 409) {
+            activeEditSessions.delete(elementId);
+            if (editBtn) {
+                editBtn.style.pointerEvents = 'auto';
+                editBtn.innerText = "✏️";
+            }
+            return alert(`⚠️ ${result.data.detail}`); 
+        }
         
         if (result.data.status === 'success') {
             if (ACTIVE_HEARTBEATS[lockKey]) clearInterval(ACTIVE_HEARTBEATS[lockKey]);
@@ -4196,12 +4313,10 @@ export async function startEditLeaf(path, elementId) {
             intervalId = setInterval(() => sendHeartbeat(path, host, intervalId, lockKey), 15000);
             ACTIVE_HEARTBEATS[lockKey] = intervalId;
             
-            // 🌟 立即更新全域鎖定狀態 (加入 Host 隔離)
             if (!window.globalActiveLocks) window.globalActiveLocks = {};
             if (!window.globalActiveLocks[host]) window.globalActiveLocks[host] = {};
             window.globalActiveLocks[host][path] = { user_id: SESSION_USER_ID, username: username };
             
-            // 🌟 確保不在冷卻名單中 (防止手速過快)
             if (window.recentlyReleasedLocks) {
                 delete window.recentlyReleasedLocks[`${host}@@${path}`];
             }
@@ -4216,7 +4331,7 @@ export async function startEditLeaf(path, elementId) {
                 }
             });
             
-            document.getElementById(`edit-btn-${elementId}`).style.display = 'none';
+            if (editBtn) editBtn.style.display = 'none';
             document.getElementById(`actions-${elementId}`).style.display = 'inline-block';
 
             const container = document.getElementById(`container-${elementId}`);
@@ -4235,6 +4350,7 @@ export async function startEditLeaf(path, elementId) {
                     apiSyncLeafOptions(host, [cacheKey], currentMode, username, connInfo.pass);
                     let found = false;
                     for (let i = 0; i < 10; i++) {
+                        if (!activeEditSessions.has(elementId)) return; // 🚨 防護
                         await new Promise(resolve => setTimeout(resolve, 1000));
                         optData = await apiGetLeafOptions(host, currentMode);
                         leafCache = optData[cacheKey];
@@ -4244,6 +4360,8 @@ export async function startEditLeaf(path, elementId) {
                     }
                 }
 
+                if (!activeEditSessions.has(elementId)) return; // 🚨 防護
+
                 let inputHtml = "";
                 let hintAttr = "";
                 let hintIcon = "";
@@ -4270,15 +4388,23 @@ export async function startEditLeaf(path, elementId) {
                 }
                 container.innerHTML = inputHtml;
             } catch (e) {
+                if (!activeEditSessions.has(elementId)) return; // 🚨 防護
                 container.innerHTML = `<input type="text" class="edit-input" data-path="${path}" value="${safeOrigVal}" style="padding: 2px 6px; border: 1px solid #3498db; border-radius: 3px; font-family: Courier New, monospace; font-size: 13px; width: 200px; outline: none; margin-left: 5px;">`;
             }
         }
     } catch (error) {
+        activeEditSessions.delete(elementId);
+        if (editBtn) {
+            editBtn.style.pointerEvents = 'auto';
+            editBtn.innerText = "✏️";
+        }
         alert("❌ 無法連線到鎖定伺服器：" + error.message);
     }
 }
 
 export async function cancelEditFolder(path, elementId) {
+    activeEditSessions.delete(elementId); // 🚨 防護：註銷編輯狀態，強制中斷背景渲染迴圈
+
     const connInfo = getGlobalConnectionInfo();
     const host = connInfo ? connInfo.host : '';
     const lockKey = `${host}@@${path}`;
@@ -4287,28 +4413,59 @@ export async function cancelEditFolder(path, elementId) {
         clearInterval(ACTIVE_HEARTBEATS[lockKey]);
         delete ACTIVE_HEARTBEATS[lockKey];
     }
-    try { await apiReleaseLock(path, SESSION_USER_ID, host); } catch (error) {}
     
-    // 🌟 寫入防閃爍冷卻表 (8秒內忽略後端的舊狀態)
+    // 🌟 關鍵修復：寫入防閃爍冷卻表必須在 await 之前！防止 API 延遲期間被輪詢重新上鎖
     if (!window.recentlyReleasedLocks) window.recentlyReleasedLocks = {};
     window.recentlyReleasedLocks[`${host}@@${path}`] = Date.now();
 
+    try { await apiReleaseLock(path, SESSION_USER_ID, host); } catch (error) {}
+
     // 🌟 立即解除全域鎖定狀態 (加入 Host 隔離)
     if (window.globalActiveLocks && window.globalActiveLocks[host] && window.globalActiveLocks[host][path]) {
         delete window.globalActiveLocks[host][path];
     }
     const safePath = path.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
-    document.querySelectorAll(`.edit-btn[data-path="${safePath}"]`).forEach(btn => {
+    // 🌟 擴大選擇器：連同所有子節點一起秒級解除鎖定
+    document.querySelectorAll(`.edit-btn[data-path="${safePath}"], .edit-btn[data-path^="${safePath}::"]`).forEach(btn => {
         if (btn.id !== `edit-btn-${elementId}`) {
-            btn.style.pointerEvents = 'auto';
-            btn.style.opacity = '0.3';
-            btn.title = "鎖定並編輯此項目";
-            btn.innerText = "✏️";
+            const btnPath = btn.getAttribute('data-path');
+            let stillLockedByOther = false;
+            
+            // 確保解除鎖定時，不會誤解開被其他父節點鎖定的子節點
+            if (window.globalActiveLocks && window.globalActiveLocks[host]) {
+                const hostLocks = window.globalActiveLocks[host];
+                if (hostLocks[btnPath]) {
+                    stillLockedByOther = true;
+                } else {
+                    for (const lockedPath of Object.keys(hostLocks)) {
+                        if (btnPath.startsWith(lockedPath + "::")) {
+                            stillLockedByOther = true;
+                            break;
+                        }
+                    }
+                }
+            }
+            
+            if (!stillLockedByOther) {
+                btn.style.pointerEvents = 'auto';
+                btn.style.opacity = '0.3';
+                btn.title = "鎖定並編輯此項目";
+                btn.innerText = "✏️";
+            }
         }
     });
     
-    document.getElementById(`edit-btn-${elementId}`).style.display = 'inline-block';
-    document.getElementById(`actions-${elementId}`).style.display = 'none';
+    const editBtn = document.getElementById(`edit-btn-${elementId}`);
+    if (editBtn) {
+        editBtn.style.display = 'inline-block';
+        editBtn.style.pointerEvents = 'auto';
+        editBtn.style.opacity = '0.3';
+        editBtn.title = "鎖定並編輯此項目";
+        editBtn.innerText = "✏️"; // 🌟 確保沙漏被清掉
+    }
+    
+    const actionBtns = document.getElementById(`actions-${elementId}`);
+    if (actionBtns) actionBtns.style.display = 'none';
 
     const contentDiv = document.getElementById(`content-${elementId}`);
     const leafContainers = contentDiv.querySelectorAll('.leaf-container');
@@ -4342,6 +4499,8 @@ export async function cancelEditFolder(path, elementId) {
 }
 
 export async function cancelEditLeaf(path, elementId) {
+    activeEditSessions.delete(elementId); // 🚨 防護：註銷編輯狀態，強制中斷背景渲染迴圈
+
     const connInfo = getGlobalConnectionInfo();
     const host = connInfo ? connInfo.host : '';
     const lockKey = `${host}@@${path}`;
@@ -4350,12 +4509,13 @@ export async function cancelEditLeaf(path, elementId) {
         clearInterval(ACTIVE_HEARTBEATS[lockKey]);
         delete ACTIVE_HEARTBEATS[lockKey];
     }
-    try { await apiReleaseLock(path, SESSION_USER_ID, host); } catch (error) {}
     
-    // 🌟 寫入防閃爍冷卻表 (8秒內忽略後端的舊狀態)
+    // 🌟 關鍵修復：寫入防閃爍冷卻表必須在 await 之前！防止 API 延遲期間被輪詢重新上鎖
     if (!window.recentlyReleasedLocks) window.recentlyReleasedLocks = {};
     window.recentlyReleasedLocks[`${host}@@${path}`] = Date.now();
 
+    try { await apiReleaseLock(path, SESSION_USER_ID, host); } catch (error) {}
+
     // 🌟 立即解除全域鎖定狀態 (加入 Host 隔離)
     if (window.globalActiveLocks && window.globalActiveLocks[host] && window.globalActiveLocks[host][path]) {
         delete window.globalActiveLocks[host][path];
@@ -4370,8 +4530,17 @@ export async function cancelEditLeaf(path, elementId) {
         }
     });
     
-    document.getElementById(`edit-btn-${elementId}`).style.display = 'inline-block';
-    document.getElementById(`actions-${elementId}`).style.display = 'none';
+    const editBtn = document.getElementById(`edit-btn-${elementId}`);
+    if (editBtn) {
+        editBtn.style.display = 'inline-block';
+        editBtn.style.pointerEvents = 'auto';
+        editBtn.style.opacity = '0.3';
+        editBtn.title = "鎖定並編輯此項目";
+        editBtn.innerText = "✏️"; // 🌟 確保沙漏被清掉
+    }
+    
+    const actionBtns = document.getElementById(`actions-${elementId}`);
+    if (actionBtns) actionBtns.style.display = 'none';
 
     const container = document.getElementById(`container-${elementId}`);
     const origVal = container.getAttribute('data-original');
@@ -5415,16 +5584,33 @@ export function buildTree(node, path = '', isParentCommandGroup = false, mode =
             let lockOpacity = "0.3";
             let lockPointer = "auto";
 
-            if (currentHost && window.globalActiveLocks && window.globalActiveLocks[currentHost] && window.globalActiveLocks[currentHost][currentPath]) {
-                const lockInfo = window.globalActiveLocks[currentHost][currentPath];
-                if (!(lockInfo.user_id === SESSION_USER_ID && elementId === currentEditElementId)) {
-                    isLocked = true;
-                    lockText = "🔒";
-                    lockOpacity = "0.2";
-                    lockPointer = "none";
-                    lockTitle = lockInfo.user_id !== SESSION_USER_ID 
-                        ? `🔒 此區塊正由 [${lockInfo.username}] 編輯中` 
-                        : `🔒 您正在另一個視圖編輯此項目`;
+            if (currentHost && window.globalActiveLocks && window.globalActiveLocks[currentHost]) {
+                const hostLocks = window.globalActiveLocks[currentHost];
+                
+                // 1. 檢查自己是否被鎖定
+                if (hostLocks[currentPath]) {
+                    const lockInfo = hostLocks[currentPath];
+                    if (!(lockInfo.user_id === SESSION_USER_ID && elementId === currentEditElementId)) {
+                        isLocked = true;
+                        lockText = "🔒";
+                        lockOpacity = "0.2";
+                        lockPointer = "none";
+                        lockTitle = lockInfo.user_id !== SESSION_USER_ID 
+                            ? `🔒 此區塊正由 [${lockInfo.username}] 編輯中` 
+                            : `🔒 您正在另一個視圖編輯此項目`;
+                    }
+                } else {
+                    // 2. 檢查父層級是否被鎖定 (Cascading Lock)
+                    for (const [lockedPath, lockInfo] of Object.entries(hostLocks)) {
+                        if (currentPath.startsWith(lockedPath + "::")) {
+                            isLocked = true;
+                            lockText = "🔒";
+                            lockOpacity = "0.2";
+                            lockPointer = "none";
+                            lockTitle = `🔒 父層級已被鎖定，無法編輯此項目`;
+                            break;
+                        }
+                    }
                 }
             }
 
@@ -5495,16 +5681,33 @@ export function buildTree(node, path = '', isParentCommandGroup = false, mode =
             let lockOpacity = "0.3";
             let lockPointer = "auto";
 
-            if (currentHost && window.globalActiveLocks && window.globalActiveLocks[currentHost] && window.globalActiveLocks[currentHost][currentPath]) {
-                const lockInfo = window.globalActiveLocks[currentHost][currentPath];
-                if (!(lockInfo.user_id === SESSION_USER_ID && elementId === currentEditElementId)) {
-                    isLocked = true;
-                    lockText = "🔒";
-                    lockOpacity = "0.2";
-                    lockPointer = "none";
-                    lockTitle = lockInfo.user_id !== SESSION_USER_ID 
-                        ? `🔒 此區塊正由 [${lockInfo.username}] 編輯中` 
-                        : `🔒 您正在另一個視圖編輯此項目`;
+            if (currentHost && window.globalActiveLocks && window.globalActiveLocks[currentHost]) {
+                const hostLocks = window.globalActiveLocks[currentHost];
+                
+                // 1. 檢查自己是否被鎖定
+                if (hostLocks[currentPath]) {
+                    const lockInfo = hostLocks[currentPath];
+                    if (!(lockInfo.user_id === SESSION_USER_ID && elementId === currentEditElementId)) {
+                        isLocked = true;
+                        lockText = "🔒";
+                        lockOpacity = "0.2";
+                        lockPointer = "none";
+                        lockTitle = lockInfo.user_id !== SESSION_USER_ID 
+                            ? `🔒 此區塊正由 [${lockInfo.username}] 編輯中` 
+                            : `🔒 您正在另一個視圖編輯此項目`;
+                    }
+                } else {
+                    // 2. 檢查父層級是否被鎖定 (Cascading Lock)
+                    for (const [lockedPath, lockInfo] of Object.entries(hostLocks)) {
+                        if (currentPath.startsWith(lockedPath + "::")) {
+                            isLocked = true;
+                            lockText = "🔒";
+                            lockOpacity = "0.2";
+                            lockPointer = "none";
+                            lockTitle = `🔒 父層級已被鎖定，無法編輯此項目`;
+                            break;
+                        }
+                    }
                 }
             }
             
diff --git a/static/app.js b/static/app.js
index 9dde413..c105017 100644
--- a/static/app.js
+++ b/static/app.js
@@ -147,7 +147,8 @@ function startLockStatusPolling() {
                     newLockState.add(lockKey); // 記憶體加入 Host 標籤
                     
                     const safePath = path.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
-                    const targetBtns = document.querySelectorAll(`.edit-btn[data-path="${safePath}"]`);
+                    // 🌟 擴大選擇器：同時選取完全匹配的節點，以及所有子節點
+                    const targetBtns = document.querySelectorAll(`.edit-btn[data-path="${safePath}"], .edit-btn[data-path^="${safePath}::"]`);
                     
                     targetBtns.forEach(btn => {
                         // 略過目前正在編輯的那個實體按鈕
@@ -156,11 +157,18 @@ function startLockStatusPolling() {
                         if (btn.innerText !== "🔒") {
                             btn.style.pointerEvents = 'none';
                             btn.style.opacity = '0.2';
-                            // 判斷是別人鎖的，還是自己在另一個視圖鎖的
-                            if (lockInfo.user_id !== SESSION_USER_ID) {
-                                btn.title = `🔒 此區塊正由 [${lockInfo.username}] 編輯中`;
+                            
+                            const btnPath = btn.getAttribute('data-path');
+                            if (btnPath === path) {
+                                // 判斷是別人鎖的，還是自己在另一個視圖鎖的
+                                if (lockInfo.user_id !== SESSION_USER_ID) {
+                                    btn.title = `🔒 此區塊正由 [${lockInfo.username}] 編輯中`;
+                                } else {
+                                    btn.title = `🔒 您正在另一個視圖編輯此項目`;
+                                }
                             } else {
-                                btn.title = `🔒 您正在另一個視圖編輯此項目`;
+                                // 子節點被父節點鎖定
+                                btn.title = `🔒 父層級已被鎖定，無法編輯此項目`;
                             }
                             btn.innerText = "🔒";
                         }
@@ -174,14 +182,33 @@ function startLockStatusPolling() {
                     // 🛡️ 嚴格限制：只解除「當前設備」且「已不在新鎖定清單中」的節點
                     if (oldHost === host && !newLockState.has(oldKey)) {
                         const safePath = oldPath.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
-                        const targetBtns = document.querySelectorAll(`.edit-btn[data-path="${safePath}"]`);
+                        // 🌟 擴大選擇器：同時選取完全匹配的節點，以及所有子節點
+                        const targetBtns = document.querySelectorAll(`.edit-btn[data-path="${safePath}"], .edit-btn[data-path^="${safePath}::"]`);
                         
                         targetBtns.forEach(btn => {
                             if (btn.innerText === "🔒") {
-                                btn.style.pointerEvents = 'auto';
-                                btn.style.opacity = '0.3';
-                                btn.title = "鎖定並編輯此項目";
-                                btn.innerText = "✏️";
+                                const btnPath = btn.getAttribute('data-path');
+                                let stillLockedByOther = false;
+                                
+                                // 檢查自己是否還在鎖定清單中
+                                if (currentLocks[btnPath]) {
+                                    stillLockedByOther = true;
+                                } else {
+                                    // 檢查是否有其他父節點鎖定它
+                                    for (const lockedPath of Object.keys(currentLocks)) {
+                                        if (btnPath.startsWith(lockedPath + "::")) {
+                                            stillLockedByOther = true;
+                                            break;
+                                        }
+                                    }
+                                }
+                                
+                                if (!stillLockedByOther) {
+                                    btn.style.pointerEvents = 'auto';
+                                    btn.style.opacity = '0.3';
+                                    btn.title = "鎖定並編輯此項目";
+                                    btn.innerText = "✏️";
+                                }
                             }
                         });
                     }
diff --git a/static/edit-mode.js b/static/edit-mode.js
index 2cd7245..683505b 100644
--- a/static/edit-mode.js
+++ b/static/edit-mode.js
@@ -24,6 +24,9 @@ function escapeHTML(str) {
 export const SESSION_USER_ID = crypto.randomUUID ? crypto.randomUUID() : 'user-' + Math.random().toString(36).substr(2, 9);
 const ACTIVE_HEARTBEATS = {}; 
 
+// 🌟 新增：用來防禦「秒按取消」導致的非同步渲染競爭危害
+const activeEditSessions = new Set();
+
 export let currentEditPath = null;
 export let currentEditElementId = null;
 export let currentEditIsSuccess = false;
@@ -69,6 +72,10 @@ async function sendHeartbeat(path, host, intervalId, lockKey) {
 // ==========================================
 
 export async function startEditFolder(path, elementId) {
+    // 🚨 防護 1：防止連點或重複執行
+    if (activeEditSessions.has(elementId)) return;
+    activeEditSessions.add(elementId); // 立即標記進入編輯狀態的意圖
+
     const connInfo = getGlobalConnectionInfo();
     const username = connInfo ? connInfo.user : 'admin';
     const host = connInfo ? connInfo.host : ''; 
@@ -76,9 +83,41 @@ export async function startEditFolder(path, elementId) {
 
     const currentMode = document.getElementById('configTask').value === 'form-full-config' ? 'full' : 'running';
 
+    // 立即讓按鈕呈現讀取中，防止使用者焦慮連點
+    const editBtn = document.getElementById(`edit-btn-${elementId}`);
+    if (editBtn) {
+        editBtn.style.pointerEvents = 'none';
+        editBtn.innerText = "⏳";
+    }
+
     try {
         const result = await apiAcquireLock(path, SESSION_USER_ID, username, host);
-        if (result.status === 409) return alert(`⚠️ ${result.data.detail}`); 
+        
+        // 🚨 防護 2：如果在等待後端上鎖的期間，使用者已經按了取消
+        if (!activeEditSessions.has(elementId)) {
+            if (result.status === 200 || (result.data && result.data.status === 'success')) {
+                // 🌟 補上防閃爍冷卻，防止輪詢抓到時間差
+                if (!window.recentlyReleasedLocks) window.recentlyReleasedLocks = {};
+                window.recentlyReleasedLocks[`${host}@@${path}`] = Date.now();
+                apiReleaseLock(path, SESSION_USER_ID, host); // 默默把剛拿到的鎖還回去
+            }
+            if (editBtn) {
+                editBtn.style.pointerEvents = 'auto';
+                editBtn.style.opacity = '0.3';
+                editBtn.title = "鎖定並編輯此項目";
+                editBtn.innerText = "✏️";
+            }
+            return; // 立即中斷，絕不觸碰 UI
+        }
+
+        if (result.status === 409) {
+            activeEditSessions.delete(elementId);
+            if (editBtn) {
+                editBtn.style.pointerEvents = 'auto';
+                editBtn.innerText = "✏️";
+            }
+            return alert(`⚠️ ${result.data.detail}`); 
+        }
         
         if (result.data.status === 'success') {
             if (ACTIVE_HEARTBEATS[lockKey]) clearInterval(ACTIVE_HEARTBEATS[lockKey]);
@@ -97,16 +136,22 @@ export async function startEditFolder(path, elementId) {
             }
             
             const safePath = path.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
-            document.querySelectorAll(`.edit-btn[data-path="${safePath}"]`).forEach(btn => {
+            // 🌟 擴大選擇器：連同所有子節點一起秒級鎖定
+            document.querySelectorAll(`.edit-btn[data-path="${safePath}"], .edit-btn[data-path^="${safePath}::"]`).forEach(btn => {
                 if (btn.id !== `edit-btn-${elementId}`) {
                     btn.style.pointerEvents = 'none';
                     btn.style.opacity = '0.2';
-                    btn.title = `🔒 您正在另一個視圖編輯此項目`;
+                    
+                    const btnPath = btn.getAttribute('data-path');
+                    if (btnPath === path) {
+                        btn.title = `🔒 您正在另一個視圖編輯此項目`;
+                    } else {
+                        btn.title = `🔒 父層級已被鎖定，無法編輯此項目`;
+                    }
                     btn.innerText = "🔒";
                 }
             });
             
-            const editBtn = document.getElementById(`edit-btn-${elementId}`);
             if (editBtn) editBtn.style.display = 'none';
             
             const actionBtn = document.getElementById(`actions-${elementId}`);
@@ -125,12 +170,17 @@ export async function startEditFolder(path, elementId) {
             let optData = {};
             try { optData = await apiGetLeafOptions(host, currentMode); } catch (e) {}
 
-            const pathsToSync = [];
+            // 🚨 防護 3：如果等待 API 期間使用者按了取消，立刻中斷後續渲染
+            if (!activeEditSessions.has(elementId)) return;
 
+            const pathsToSync = [];
             const containersArray = Array.from(leafContainers);
             const CHUNK_SIZE = 50; 
 
             for (let i = 0; i < containersArray.length; i += CHUNK_SIZE) {
+                // 🚨 防護 4：如果分批渲染期間使用者按了取消，立刻中斷
+                if (!activeEditSessions.has(elementId)) return;
+
                 const chunk = containersArray.slice(i, i + CHUNK_SIZE);
                 
                 chunk.forEach(container => {
@@ -177,11 +227,20 @@ export async function startEditFolder(path, elementId) {
             if (pathsToSync.length > 0) apiSyncLeafOptions(host, pathsToSync, currentMode, username, connInfo.pass);
         }
     } catch (error) {
+        activeEditSessions.delete(elementId);
+        if (editBtn) {
+            editBtn.style.pointerEvents = 'auto';
+            editBtn.innerText = "✏️";
+        }
         alert("❌ 無法連線到鎖定伺服器：" + error.message);
     }
 }
 
 export async function startEditLeaf(path, elementId) {
+    // 🚨 防護 1：防止連點或重複執行
+    if (activeEditSessions.has(elementId)) return;
+    activeEditSessions.add(elementId);
+
     const connInfo = getGlobalConnectionInfo();
     const username = connInfo ? connInfo.user : 'admin';
     const host = connInfo ? connInfo.host : '';
@@ -189,9 +248,40 @@ export async function startEditLeaf(path, elementId) {
 
     const currentMode = document.getElementById('configTask').value === 'form-full-config' ? 'full' : 'running';
 
+    const editBtn = document.getElementById(`edit-btn-${elementId}`);
+    if (editBtn) {
+        editBtn.style.pointerEvents = 'none';
+        editBtn.innerText = "⏳";
+    }
+
     try {
         const result = await apiAcquireLock(path, SESSION_USER_ID, username, host);
-        if (result.status === 409) return alert(`⚠️ ${result.data.detail}`); 
+        
+        // 🚨 防護 2：如果在等待後端上鎖的期間，使用者已經按了取消
+        if (!activeEditSessions.has(elementId)) {
+            if (result.status === 200 || (result.data && result.data.status === 'success')) {
+                // 🌟 補上防閃爍冷卻，防止輪詢抓到時間差
+                if (!window.recentlyReleasedLocks) window.recentlyReleasedLocks = {};
+                window.recentlyReleasedLocks[`${host}@@${path}`] = Date.now();
+                apiReleaseLock(path, SESSION_USER_ID, host);
+            }
+            if (editBtn) {
+                editBtn.style.pointerEvents = 'auto';
+                editBtn.style.opacity = '0.3';
+                editBtn.title = "鎖定並編輯此項目";
+                editBtn.innerText = "✏️";
+            }
+            return;
+        }
+
+        if (result.status === 409) {
+            activeEditSessions.delete(elementId);
+            if (editBtn) {
+                editBtn.style.pointerEvents = 'auto';
+                editBtn.innerText = "✏️";
+            }
+            return alert(`⚠️ ${result.data.detail}`); 
+        }
         
         if (result.data.status === 'success') {
             if (ACTIVE_HEARTBEATS[lockKey]) clearInterval(ACTIVE_HEARTBEATS[lockKey]);
@@ -199,12 +289,10 @@ export async function startEditLeaf(path, elementId) {
             intervalId = setInterval(() => sendHeartbeat(path, host, intervalId, lockKey), 15000);
             ACTIVE_HEARTBEATS[lockKey] = intervalId;
             
-            // 🌟 立即更新全域鎖定狀態 (加入 Host 隔離)
             if (!window.globalActiveLocks) window.globalActiveLocks = {};
             if (!window.globalActiveLocks[host]) window.globalActiveLocks[host] = {};
             window.globalActiveLocks[host][path] = { user_id: SESSION_USER_ID, username: username };
             
-            // 🌟 確保不在冷卻名單中 (防止手速過快)
             if (window.recentlyReleasedLocks) {
                 delete window.recentlyReleasedLocks[`${host}@@${path}`];
             }
@@ -219,7 +307,7 @@ export async function startEditLeaf(path, elementId) {
                 }
             });
             
-            document.getElementById(`edit-btn-${elementId}`).style.display = 'none';
+            if (editBtn) editBtn.style.display = 'none';
             document.getElementById(`actions-${elementId}`).style.display = 'inline-block';
 
             const container = document.getElementById(`container-${elementId}`);
@@ -238,6 +326,7 @@ export async function startEditLeaf(path, elementId) {
                     apiSyncLeafOptions(host, [cacheKey], currentMode, username, connInfo.pass);
                     let found = false;
                     for (let i = 0; i < 10; i++) {
+                        if (!activeEditSessions.has(elementId)) return; // 🚨 防護
                         await new Promise(resolve => setTimeout(resolve, 1000));
                         optData = await apiGetLeafOptions(host, currentMode);
                         leafCache = optData[cacheKey];
@@ -247,6 +336,8 @@ export async function startEditLeaf(path, elementId) {
                     }
                 }
 
+                if (!activeEditSessions.has(elementId)) return; // 🚨 防護
+
                 let inputHtml = "";
                 let hintAttr = "";
                 let hintIcon = "";
@@ -273,15 +364,23 @@ export async function startEditLeaf(path, elementId) {
                 }
                 container.innerHTML = inputHtml;
             } catch (e) {
+                if (!activeEditSessions.has(elementId)) return; // 🚨 防護
                 container.innerHTML = `<input type="text" class="edit-input" data-path="${path}" value="${safeOrigVal}" style="padding: 2px 6px; border: 1px solid #3498db; border-radius: 3px; font-family: Courier New, monospace; font-size: 13px; width: 200px; outline: none; margin-left: 5px;">`;
             }
         }
     } catch (error) {
+        activeEditSessions.delete(elementId);
+        if (editBtn) {
+            editBtn.style.pointerEvents = 'auto';
+            editBtn.innerText = "✏️";
+        }
         alert("❌ 無法連線到鎖定伺服器：" + error.message);
     }
 }
 
 export async function cancelEditFolder(path, elementId) {
+    activeEditSessions.delete(elementId); // 🚨 防護：註銷編輯狀態，強制中斷背景渲染迴圈
+
     const connInfo = getGlobalConnectionInfo();
     const host = connInfo ? connInfo.host : '';
     const lockKey = `${host}@@${path}`;
@@ -290,28 +389,59 @@ export async function cancelEditFolder(path, elementId) {
         clearInterval(ACTIVE_HEARTBEATS[lockKey]);
         delete ACTIVE_HEARTBEATS[lockKey];
     }
-    try { await apiReleaseLock(path, SESSION_USER_ID, host); } catch (error) {}
     
-    // 🌟 寫入防閃爍冷卻表 (8秒內忽略後端的舊狀態)
+    // 🌟 關鍵修復：寫入防閃爍冷卻表必須在 await 之前！防止 API 延遲期間被輪詢重新上鎖
     if (!window.recentlyReleasedLocks) window.recentlyReleasedLocks = {};
     window.recentlyReleasedLocks[`${host}@@${path}`] = Date.now();
 
+    try { await apiReleaseLock(path, SESSION_USER_ID, host); } catch (error) {}
+
     // 🌟 立即解除全域鎖定狀態 (加入 Host 隔離)
     if (window.globalActiveLocks && window.globalActiveLocks[host] && window.globalActiveLocks[host][path]) {
         delete window.globalActiveLocks[host][path];
     }
     const safePath = path.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
-    document.querySelectorAll(`.edit-btn[data-path="${safePath}"]`).forEach(btn => {
+    // 🌟 擴大選擇器：連同所有子節點一起秒級解除鎖定
+    document.querySelectorAll(`.edit-btn[data-path="${safePath}"], .edit-btn[data-path^="${safePath}::"]`).forEach(btn => {
         if (btn.id !== `edit-btn-${elementId}`) {
-            btn.style.pointerEvents = 'auto';
-            btn.style.opacity = '0.3';
-            btn.title = "鎖定並編輯此項目";
-            btn.innerText = "✏️";
+            const btnPath = btn.getAttribute('data-path');
+            let stillLockedByOther = false;
+            
+            // 確保解除鎖定時，不會誤解開被其他父節點鎖定的子節點
+            if (window.globalActiveLocks && window.globalActiveLocks[host]) {
+                const hostLocks = window.globalActiveLocks[host];
+                if (hostLocks[btnPath]) {
+                    stillLockedByOther = true;
+                } else {
+                    for (const lockedPath of Object.keys(hostLocks)) {
+                        if (btnPath.startsWith(lockedPath + "::")) {
+                            stillLockedByOther = true;
+                            break;
+                        }
+                    }
+                }
+            }
+            
+            if (!stillLockedByOther) {
+                btn.style.pointerEvents = 'auto';
+                btn.style.opacity = '0.3';
+                btn.title = "鎖定並編輯此項目";
+                btn.innerText = "✏️";
+            }
         }
     });
     
-    document.getElementById(`edit-btn-${elementId}`).style.display = 'inline-block';
-    document.getElementById(`actions-${elementId}`).style.display = 'none';
+    const editBtn = document.getElementById(`edit-btn-${elementId}`);
+    if (editBtn) {
+        editBtn.style.display = 'inline-block';
+        editBtn.style.pointerEvents = 'auto';
+        editBtn.style.opacity = '0.3';
+        editBtn.title = "鎖定並編輯此項目";
+        editBtn.innerText = "✏️"; // 🌟 確保沙漏被清掉
+    }
+    
+    const actionBtns = document.getElementById(`actions-${elementId}`);
+    if (actionBtns) actionBtns.style.display = 'none';
 
     const contentDiv = document.getElementById(`content-${elementId}`);
     const leafContainers = contentDiv.querySelectorAll('.leaf-container');
@@ -345,6 +475,8 @@ export async function cancelEditFolder(path, elementId) {
 }
 
 export async function cancelEditLeaf(path, elementId) {
+    activeEditSessions.delete(elementId); // 🚨 防護：註銷編輯狀態，強制中斷背景渲染迴圈
+
     const connInfo = getGlobalConnectionInfo();
     const host = connInfo ? connInfo.host : '';
     const lockKey = `${host}@@${path}`;
@@ -353,12 +485,13 @@ export async function cancelEditLeaf(path, elementId) {
         clearInterval(ACTIVE_HEARTBEATS[lockKey]);
         delete ACTIVE_HEARTBEATS[lockKey];
     }
-    try { await apiReleaseLock(path, SESSION_USER_ID, host); } catch (error) {}
     
-    // 🌟 寫入防閃爍冷卻表 (8秒內忽略後端的舊狀態)
+    // 🌟 關鍵修復：寫入防閃爍冷卻表必須在 await 之前！防止 API 延遲期間被輪詢重新上鎖
     if (!window.recentlyReleasedLocks) window.recentlyReleasedLocks = {};
     window.recentlyReleasedLocks[`${host}@@${path}`] = Date.now();
 
+    try { await apiReleaseLock(path, SESSION_USER_ID, host); } catch (error) {}
+
     // 🌟 立即解除全域鎖定狀態 (加入 Host 隔離)
     if (window.globalActiveLocks && window.globalActiveLocks[host] && window.globalActiveLocks[host][path]) {
         delete window.globalActiveLocks[host][path];
@@ -373,8 +506,17 @@ export async function cancelEditLeaf(path, elementId) {
         }
     });
     
-    document.getElementById(`edit-btn-${elementId}`).style.display = 'inline-block';
-    document.getElementById(`actions-${elementId}`).style.display = 'none';
+    const editBtn = document.getElementById(`edit-btn-${elementId}`);
+    if (editBtn) {
+        editBtn.style.display = 'inline-block';
+        editBtn.style.pointerEvents = 'auto';
+        editBtn.style.opacity = '0.3';
+        editBtn.title = "鎖定並編輯此項目";
+        editBtn.innerText = "✏️"; // 🌟 確保沙漏被清掉
+    }
+    
+    const actionBtns = document.getElementById(`actions-${elementId}`);
+    if (actionBtns) actionBtns.style.display = 'none';
 
     const container = document.getElementById(`container-${elementId}`);
     const origVal = container.getAttribute('data-original');
diff --git a/static/tree-ui.js b/static/tree-ui.js
index 39e0bfb..7f43c28 100644
--- a/static/tree-ui.js
+++ b/static/tree-ui.js
@@ -126,16 +126,33 @@ export function buildTree(node, path = '', isParentCommandGroup = false, mode =
             let lockOpacity = "0.3";
             let lockPointer = "auto";
 
-            if (currentHost && window.globalActiveLocks && window.globalActiveLocks[currentHost] && window.globalActiveLocks[currentHost][currentPath]) {
-                const lockInfo = window.globalActiveLocks[currentHost][currentPath];
-                if (!(lockInfo.user_id === SESSION_USER_ID && elementId === currentEditElementId)) {
-                    isLocked = true;
-                    lockText = "🔒";
-                    lockOpacity = "0.2";
-                    lockPointer = "none";
-                    lockTitle = lockInfo.user_id !== SESSION_USER_ID 
-                        ? `🔒 此區塊正由 [${lockInfo.username}] 編輯中` 
-                        : `🔒 您正在另一個視圖編輯此項目`;
+            if (currentHost && window.globalActiveLocks && window.globalActiveLocks[currentHost]) {
+                const hostLocks = window.globalActiveLocks[currentHost];
+                
+                // 1. 檢查自己是否被鎖定
+                if (hostLocks[currentPath]) {
+                    const lockInfo = hostLocks[currentPath];
+                    if (!(lockInfo.user_id === SESSION_USER_ID && elementId === currentEditElementId)) {
+                        isLocked = true;
+                        lockText = "🔒";
+                        lockOpacity = "0.2";
+                        lockPointer = "none";
+                        lockTitle = lockInfo.user_id !== SESSION_USER_ID 
+                            ? `🔒 此區塊正由 [${lockInfo.username}] 編輯中` 
+                            : `🔒 您正在另一個視圖編輯此項目`;
+                    }
+                } else {
+                    // 2. 檢查父層級是否被鎖定 (Cascading Lock)
+                    for (const [lockedPath, lockInfo] of Object.entries(hostLocks)) {
+                        if (currentPath.startsWith(lockedPath + "::")) {
+                            isLocked = true;
+                            lockText = "🔒";
+                            lockOpacity = "0.2";
+                            lockPointer = "none";
+                            lockTitle = `🔒 父層級已被鎖定，無法編輯此項目`;
+                            break;
+                        }
+                    }
                 }
             }
 
@@ -206,16 +223,33 @@ export function buildTree(node, path = '', isParentCommandGroup = false, mode =
             let lockOpacity = "0.3";
             let lockPointer = "auto";
 
-            if (currentHost && window.globalActiveLocks && window.globalActiveLocks[currentHost] && window.globalActiveLocks[currentHost][currentPath]) {
-                const lockInfo = window.globalActiveLocks[currentHost][currentPath];
-                if (!(lockInfo.user_id === SESSION_USER_ID && elementId === currentEditElementId)) {
-                    isLocked = true;
-                    lockText = "🔒";
-                    lockOpacity = "0.2";
-                    lockPointer = "none";
-                    lockTitle = lockInfo.user_id !== SESSION_USER_ID 
-                        ? `🔒 此區塊正由 [${lockInfo.username}] 編輯中` 
-                        : `🔒 您正在另一個視圖編輯此項目`;
+            if (currentHost && window.globalActiveLocks && window.globalActiveLocks[currentHost]) {
+                const hostLocks = window.globalActiveLocks[currentHost];
+                
+                // 1. 檢查自己是否被鎖定
+                if (hostLocks[currentPath]) {
+                    const lockInfo = hostLocks[currentPath];
+                    if (!(lockInfo.user_id === SESSION_USER_ID && elementId === currentEditElementId)) {
+                        isLocked = true;
+                        lockText = "🔒";
+                        lockOpacity = "0.2";
+                        lockPointer = "none";
+                        lockTitle = lockInfo.user_id !== SESSION_USER_ID 
+                            ? `🔒 此區塊正由 [${lockInfo.username}] 編輯中` 
+                            : `🔒 您正在另一個視圖編輯此項目`;
+                    }
+                } else {
+                    // 2. 檢查父層級是否被鎖定 (Cascading Lock)
+                    for (const [lockedPath, lockInfo] of Object.entries(hostLocks)) {
+                        if (currentPath.startsWith(lockedPath + "::")) {
+                            isLocked = true;
+                            lockText = "🔒";
+                            lockOpacity = "0.2";
+                            lockPointer = "none";
+                            lockTitle = `🔒 父層級已被鎖定，無法編輯此項目`;
+                            break;
+                        }
+                    }
                 }
             }