diff --git a/static/src/components/chat/VirtualMonitorSurface.vue b/static/src/components/chat/VirtualMonitorSurface.vue
index dace265..319f05a 100644
--- a/static/src/components/chat/VirtualMonitorSurface.vue
+++ b/static/src/components/chat/VirtualMonitorSurface.vue
@@ -228,13 +228,13 @@
 </template>
 
 <script setup lang="ts">
-import { computed, nextTick, onBeforeUnmount, onMounted, ref } from 'vue';
+import { computed, nextTick, onBeforeUnmount, onMounted, ref, watch } from 'vue';
 import { storeToRefs } from 'pinia';
 import { useMonitorStore } from '@/stores/monitor';
 import { MonitorDirector, type MonitorElements } from '@/components/chat/monitor/MonitorDirector';
 
 const monitorStore = useMonitorStore();
-const { statusLabel, progressIndicator } = storeToRefs(monitorStore);
+const { statusLabel, progressIndicator, lastTreeSnapshot } = storeToRefs(monitorStore);
 const currentProgressLabel = computed(() => progressIndicator.value?.label || '');
 
 const screenEl = ref<HTMLElement | null>(null);
@@ -384,12 +384,27 @@ const mountDirector = async () => {
   const instance = new MonitorDirector(elements, assets);
   director.value = instance;
   monitorStore.registerDriver(instance);
+  // 确保初次挂载或刷新后切换到监视器时桌面根目录立即渲染
+  if (Array.isArray(monitorStore.lastTreeSnapshot) && monitorStore.lastTreeSnapshot.length) {
+    instance.setDesktopRoots(monitorStore.lastTreeSnapshot, { immediate: true });
+  }
 };
 
 onMounted(() => {
   mountDirector();
 });
 
+// 监听桌面根目录变化，确保文件/文件夹实时渲染（包括刷新后首帧）
+watch(
+  lastTreeSnapshot,
+  roots => {
+    if (director.value && Array.isArray(roots)) {
+      director.value.setDesktopRoots(roots, { immediate: true });
+    }
+  },
+  { immediate: true }
+);
+
 onBeforeUnmount(() => {
   monitorStore.unregisterDriver();
   director.value?.destroy();
diff --git a/static/src/components/chat/monitor/MonitorDirector.ts b/static/src/components/chat/monitor/MonitorDirector.ts
index 1159dc0..57e0370 100644
--- a/static/src/components/chat/monitor/MonitorDirector.ts
+++ b/static/src/components/chat/monitor/MonitorDirector.ts
@@ -195,6 +195,8 @@ export class MonitorDirector implements MonitorDriver {
   private desktopRoots: string[] = [];
   private screenRect: DOMRect;
   private pointerBase = { x: 60, y: 120 };
+  private pendingPointerTransform: { x: number; y: number; duration: number } | null = null;
+  private screenObserver: ResizeObserver | null = null;
   private bubbleTimer: number | null = null;
   private windowAnchors = new Map<HTMLElement, { x: number; y: number }>();
   private destroyFns: Array<() => void> = [];
@@ -254,6 +256,10 @@ export class MonitorDirector implements MonitorDriver {
   private refreshScreenRect() {
     const prev = this.screenRect;
     const rect = this.elements.screen.getBoundingClientRect();
+    // 隐藏状态下 rect 可能为 0，避免把指针归零
+    if (rect.width < 1 || rect.height < 1) {
+      return;
+    }
     this.screenRect = rect;
     if (prev && prev.width > 0 && prev.height > 0) {
       const relX = this.pointerBase.x / prev.width;
@@ -285,6 +291,7 @@ export class MonitorDirector implements MonitorDriver {
     this.setupScenes();
     this.bindTerminalInteractions();
     this.populateDesktop();
+    this.setupScreenObserver();
     this.extractionAnchor = this.windowAnchors.get(this.elements.extractionWindow) || this.extractionAnchor;
     this.prepareExtractionTemplate();
     this.layoutFloatingWindows();
@@ -294,6 +301,7 @@ export class MonitorDirector implements MonitorDriver {
     const resizeHandler = () => {
       this.refreshScreenRect();
       this.layoutFloatingWindows();
+      this.flushPendingPointerTransform();
     };
     window.addEventListener('resize', resizeHandler, { passive: true });
     this.destroyFns.push(() => window.removeEventListener('resize', resizeHandler));
@@ -312,7 +320,10 @@ export class MonitorDirector implements MonitorDriver {
     preservePointer?: boolean;
     preserveWindows?: boolean;
   }) {
+    // 清理挂起的指针位置，避免后续尺寸变化时覆盖当前重置
+    this.pendingPointerTransform = null;
     const preserveWindows = !!options?.preserveWindows;
+    const preservePointer = options?.preservePointer !== false; // 默认保留指针位置
     this.cancelManualDrag();
     if (!preserveWindows) {
       this.resetManualPositions();
@@ -327,7 +338,7 @@ export class MonitorDirector implements MonitorDriver {
     } else {
       this.stopBubbleTimers();
     }
-    if (!options?.preservePointer) {
+    if (!preservePointer) {
       this.pointerBase = { x: 60, y: 120 };
       this.elements.mousePointer.style.transform = 'translate3d(60px, 120px, 0)';
     }
@@ -357,6 +368,9 @@ export class MonitorDirector implements MonitorDriver {
     }
     if (Array.isArray(options?.desktopRoots) && options?.desktopRoots.length) {
       this.setDesktopRoots(options.desktopRoots, { immediate: true });
+    } else if (this.desktopRoots.length) {
+      // 保持当前根目录重新渲染，避免在重置后桌面空白
+      this.setDesktopRoots(this.desktopRoots, { immediate: true });
     }
     this.renderTerminalTabs();
   }
@@ -724,6 +738,10 @@ export class MonitorDirector implements MonitorDriver {
   }
 
   private positionBubble() {
+    // 隐藏状态（display: none）时不更新气泡与指针，避免坐标被重置到原点
+    if (this.elements.screen.clientWidth < 1 || this.elements.screen.clientHeight < 1) {
+      return;
+    }
     const bubble = this.elements.speechBubble;
     const bubbleRect = bubble.getBoundingClientRect();
     const width = bubbleRect.width || 220;
@@ -1306,9 +1324,12 @@ export class MonitorDirector implements MonitorDriver {
     await this.focusCommandInput();
     const toDelete = this.commandCurrentText;
     if (toDelete) {
-      for (let i = toDelete.length; i > 0; i -= 1) {
+      const len = toDelete.length;
+      const boost = 1 + Math.min(len / 40, 6); // 行越长删除越快
+      const interval = Math.max(6, Math.floor(18 / boost));
+      for (let i = len; i > 0; i -= 1) {
         target.textContent = toDelete.slice(0, i - 1);
-        await sleep(18);
+        await sleep(interval);
       }
       this.commandCurrentText = '';
     }
@@ -2533,11 +2554,14 @@ export class MonitorDirector implements MonitorDriver {
         execution: payload?.executionId || payload?.id,
         path: rawPath
       });
-      const targetEntry = await this.revealFileTarget(rawPath, { spawnDesktopFile: true });
-      if (targetEntry?.element) {
-        await this.openFileMenuAction(targetEntry.element, 'edit');
-      } else {
-        await this.movePointerToDesktop();
+      const editorAlreadyVisible = this.isWindowVisible(this.elements.editorWindow);
+      if (!editorAlreadyVisible) {
+        const targetEntry = await this.revealFileTarget(rawPath, { spawnDesktopFile: true });
+        if (targetEntry?.element) {
+          await this.openFileMenuAction(targetEntry.element, 'edit');
+        } else {
+          await this.movePointerToDesktop();
+        }
       }
       this.openEditorWindow(filename);
       this.renderEditorPlaceholder('正在读取文件内容...');
@@ -3409,6 +3433,9 @@ export class MonitorDirector implements MonitorDriver {
       return;
     }
     this.refreshScreenRect();
+    if (this.elements.screen.clientWidth < 1 || this.elements.screen.clientHeight < 1) {
+      return;
+    }
     this.raiseWindowForTarget(target);
     if (!this.progressBubbleBase) {
       this.dismissBubble(true);
@@ -3419,6 +3446,9 @@ export class MonitorDirector implements MonitorDriver {
     }
     const { offsetX = 0, offsetY = 0, duration = 900 } = options;
     const rect = target.getBoundingClientRect();
+    if (rect.width < 1 && rect.height < 1) {
+      return;
+    }
     const desiredX = rect.left - this.screenRect.left + rect.width / 2 + offsetX;
     const desiredY = rect.top - this.screenRect.top + rect.height / 2 + offsetY;
     const pointerX = desiredX - POINTER_TIP_OFFSET.x;
@@ -3494,9 +3524,26 @@ export class MonitorDirector implements MonitorDriver {
     };
   }
 
+  private flushPendingPointerTransform() {
+    if (!this.pendingPointerTransform) {
+      return;
+    }
+    const pending = this.pendingPointerTransform;
+    this.pendingPointerTransform = null;
+    this.updatePointerTransform(pending.x, pending.y, pending.duration);
+  }
+
   private updatePointerTransform(x: number, y: number, duration = 0) {
-    const clampedX = Math.min(Math.max(0, x), Math.max(0, this.elements.screen.clientWidth - 10));
-    const clampedY = Math.min(Math.max(0, y), Math.max(0, this.elements.screen.clientHeight - 10));
+    if (!Number.isFinite(x) || !Number.isFinite(y)) {
+      return;
+    }
+    const screenWidth = this.elements.screen.clientWidth || this.screenRect?.width || 0;
+    const screenHeight = this.elements.screen.clientHeight || this.screenRect?.height || 0;
+    if (screenWidth < 1 || screenHeight < 1) {
+      return;
+    }
+    const clampedX = Math.min(Math.max(0, x), Math.max(0, screenWidth - 10));
+    const clampedY = Math.min(Math.max(0, y), Math.max(0, screenHeight - 10));
     this.elements.mousePointer.style.setProperty('--mouse-duration', `${Math.max(duration, 0)}ms`);
     this.elements.mousePointer.style.transform = `translate3d(${clampedX}px, ${clampedY}px, 0)`;
     this.pointerBase = { x: clampedX, y: clampedY };
@@ -3511,6 +3558,24 @@ export class MonitorDirector implements MonitorDriver {
     };
   }
 
+  private setupScreenObserver() {
+    if (typeof ResizeObserver === 'undefined') {
+      return;
+    }
+    this.screenObserver = new ResizeObserver(entries => {
+      const entry = Array.isArray(entries) ? entries[0] : null;
+      const width = entry?.contentRect?.width || this.elements.screen.clientWidth;
+      const height = entry?.contentRect?.height || this.elements.screen.clientHeight;
+      if (width < 1 || height < 1) {
+        return;
+      }
+      this.refreshScreenRect();
+      this.flushPendingPointerTransform();
+    });
+    this.screenObserver.observe(this.elements.screen);
+    this.destroyFns.push(() => this.screenObserver?.disconnect());
+  }
+
   private showWindow(el: HTMLElement) {
     el.classList.remove('closing');
     el.classList.add('visible');
@@ -4230,15 +4295,30 @@ export class MonitorDirector implements MonitorDriver {
   private async animateEditorTransition(nextLines: any) {
     const currentLines = this.editorScene.lines.slice();
     const targetLines = this.sanitizeEditorLines(nextLines);
+    const lineCount = targetLines.length;
     editorDebug('animate:start', {
       currentLines: currentLines.length,
-      targetLines: targetLines.length
+      targetLines: lineCount
     });
     if (!currentLines.length && !targetLines.length) {
       editorDebug('animate:both-empty');
       this.renderEditorPlaceholder('（文件当前为空）');
       return;
     }
+    // 规则：
+    // - > 30 行：直接瞬间渲染
+    if (lineCount > 30) {
+      editorDebug('animate:skip-gt-30', { lineCount });
+      this.renderEditorSnapshot(targetLines);
+      return;
+    }
+    // - 9~30 行：逐行动画（不逐字符）
+    if (lineCount > 8) {
+      editorDebug('animate:line-fill', { lineCount });
+      await this.animateEditorLineFill(targetLines);
+      return;
+    }
+    // - ≤8 行：保留原逐字符/行内阈值逻辑
     if (
       currentLines.length > EDITOR_DIFF_LIMIT ||
       targetLines.length > EDITOR_DIFF_LIMIT
@@ -4296,6 +4376,35 @@ export class MonitorDirector implements MonitorDriver {
     this.editorSpeedBoost = 1;
   }
 
+  private async animateEditorLineFill(lines: string[]) {
+    const normalized = this.sanitizeEditorLines(lines);
+    if (!normalized.length) {
+      this.renderEditorPlaceholder('（文件当前为空）');
+      return;
+    }
+    const container = this.elements.editorBody;
+    container.innerHTML = '';
+    // 先放空行占位，再逐行填充文本，避免逐字符动画
+    normalized.forEach((_, index) => {
+      const row = this.buildEditorLineElement('', index, undefined, { prefill: false });
+      container.appendChild(row);
+    });
+    container.scrollTo({ top: 0 });
+    const delay = 28;
+    const rows = Array.from(container.children) as HTMLElement[];
+    for (let i = 0; i < rows.length; i += 1) {
+      const row = rows[i];
+      row.textContent = normalized[i] || ' ';
+      row.classList.add('visible');
+      this.adjustEditorScrollForLine(row);
+      await sleep(delay);
+    }
+    this.editorScene.lines = normalized.slice();
+    this.editorScene.placeholder = false;
+    this.syncEditorIndices();
+    this.editorSpeedBoost = 1;
+  }
+
   private buildEditorDiff(before: string[], after: string[]): EditorOperation[] {
     const m = before.length;
     const n = after.length;