diff --git a/static/src/components/chat/actions/ToolAction.vue b/static/src/components/chat/actions/ToolAction.vue
index 55556a5b..e6174549 100644
--- a/static/src/components/chat/actions/ToolAction.vue
+++ b/static/src/components/chat/actions/ToolAction.vue
@@ -89,6 +89,10 @@ function renderToolResult(): string {
 
 .tool-result-meta > div {
   margin: 4px 0;
+  /* 参数值中的换行符（如多行 command/content）需要真实渲染，
+     否则多行内容会挤成一行仅靠容器宽度被动折行 */
+  white-space: pre-wrap;
+  word-break: break-word;
 }
 
 .tool-result-content {
@@ -436,6 +440,16 @@ function renderToolResult(): string {
   line-height: 1.5;
 }
 
+/* 记忆搜索匹配片段：单行展示，过长不折行直接省略号截断（hover title 看全文） */
+.search-match-snippet {
+  font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
+  font-size: 12px;
+  line-height: 1.5;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
 /* 提取片段 */
 .segment-separator {
   text-align: center;
diff --git a/static/src/components/chat/actions/toolRenderers.ts b/static/src/components/chat/actions/toolRenderers.ts
index 5dbb4ce0..8786af6a 100644
--- a/static/src/components/chat/actions/toolRenderers.ts
+++ b/static/src/components/chat/actions/toolRenderers.ts
@@ -1029,11 +1029,14 @@ function renderSearchProjectMemory(result: any, args: any): string {
     }
     const snippets = Array.isArray(item.snippets) ? item.snippets : [];
     if (snippets.length > 0) {
-      const snippetText = snippets
-        .map((snippet: any) => `L${snippet.line ?? '?'}: ${snippet.text || ''}`)
-        .join('\n');
+      // 每条匹配片段独立成行渲染（pre 整体渲染时长行不换行会溢出容器），
+      // 配合 .search-match-snippet 的 nowrap + ellipsis：过长片段直接省略号截断
       html += '<div class="search-match-item">';
-      html += `<pre>${escapeHtml(snippetText)}</pre>`;
+      snippets.forEach((snippet: any) => {
+        const lineText = `L${snippet.line ?? '?'}: ${snippet.text || ''}`;
+        const escaped = escapeHtml(lineText);
+        html += `<div class="search-match-snippet" title="${escaped.replace(/"/g, '&quot;')}">${escaped}</div>`;
+      });
       html += '</div>';
     }
     html += '</div>';
diff --git a/static/src/components/chat/quickdock/FilePreviewPanel.vue b/static/src/components/chat/quickdock/FilePreviewPanel.vue
index 515464a1..59adeaa6 100644
--- a/static/src/components/chat/quickdock/FilePreviewPanel.vue
+++ b/static/src/components/chat/quickdock/FilePreviewPanel.vue
@@ -1,6 +1,12 @@
 <template>
   <transition name="qd-preview-slide">
-    <aside v-if="previewPath" class="qd-preview">
+    <aside v-if="previewPath" class="qd-preview" :style="{ width: previewWidth + 'px' }">
+      <!-- 左缘拖拽手柄：拖动调整面板宽度，localStorage 持久化 -->
+      <div
+        class="qd-preview__resize"
+        title="拖拽调整宽度"
+        @mousedown="startPreviewResize"
+      ></div>
       <section class="qd-preview__panel">
         <header class="qd-preview__header">
           <svg viewBox="0 0 16 16" fill="none">
@@ -122,6 +128,51 @@ const PREVIEWABLE_EXTS = new Set([
 const quickDock = useQuickDockStore();
 const { previewPath } = storeToRefs(quickDock);
 
+/** 预览面板宽度（含右侧 12px padding），localStorage 持久化 */
+const PREVIEW_WIDTH_STORAGE_KEY = 'agents_qd_preview_width';
+const PREVIEW_WIDTH_MIN = 320;
+const PREVIEW_WIDTH_MAX = 860;
+const PREVIEW_WIDTH_DEFAULT = 452;
+
+const loadPreviewWidth = (): number => {
+  if (typeof window === 'undefined' || !window.localStorage) return PREVIEW_WIDTH_DEFAULT;
+  try {
+    const raw = Number(window.localStorage.getItem(PREVIEW_WIDTH_STORAGE_KEY));
+    if (!Number.isFinite(raw) || raw <= 0) return PREVIEW_WIDTH_DEFAULT;
+    return Math.max(PREVIEW_WIDTH_MIN, Math.min(PREVIEW_WIDTH_MAX, raw));
+  } catch {
+    return PREVIEW_WIDTH_DEFAULT;
+  }
+};
+
+const previewWidth = ref(loadPreviewWidth());
+
+function startPreviewResize(event: MouseEvent) {
+  event.preventDefault();
+  const startX = event.clientX;
+  const startWidth = previewWidth.value;
+  const onMove = (e: MouseEvent) => {
+    // 手柄在面板左缘：向左拖变宽、向右拖变窄
+    const next = startWidth + (startX - e.clientX);
+    previewWidth.value = Math.max(PREVIEW_WIDTH_MIN, Math.min(PREVIEW_WIDTH_MAX, next));
+  };
+  const onUp = () => {
+    document.removeEventListener('mousemove', onMove);
+    document.removeEventListener('mouseup', onUp);
+    document.body.style.cursor = '';
+    document.body.style.userSelect = '';
+    try {
+      window.localStorage.setItem(PREVIEW_WIDTH_STORAGE_KEY, String(previewWidth.value));
+    } catch {
+      /* 持久化失败不影响本次调整 */
+    }
+  };
+  document.addEventListener('mousemove', onMove);
+  document.addEventListener('mouseup', onUp);
+  document.body.style.cursor = 'col-resize';
+  document.body.style.userSelect = 'none';
+}
+
 const rawText = ref('');
 const loading = ref(false);
 const error = ref('');
diff --git a/static/src/components/chat/quickdock/quickdock.css b/static/src/components/chat/quickdock/quickdock.css
index b77fd60d..813c844c 100644
--- a/static/src/components/chat/quickdock/quickdock.css
+++ b/static/src/components/chat/quickdock/quickdock.css
@@ -733,13 +733,42 @@
 
 .qd-preview {
   flex: none;
-  width: 452px; /* 440 + 右 12 padding */
+  width: 452px; /* 440 + 右 12 padding；内联 width（拖拽调宽）优先于此处默认值 */
   max-width: calc(100vw - 200px);
   padding: 20px 12px 20px 0;
   box-sizing: border-box;
   display: flex;
   flex-direction: column;
   min-height: 0;
+  position: relative; /* 容纳左缘拖拽手柄 */
+}
+
+/* 左缘拖拽手柄：10px 热区骑跨面板左缘，可视 4px 高亮条仅在 hover/拖拽时显现 */
+.qd-preview__resize {
+  position: absolute;
+  top: 0;
+  bottom: 0;
+  left: -5px;
+  width: 10px;
+  cursor: col-resize;
+  z-index: 5;
+}
+
+.qd-preview__resize::after {
+  content: '';
+  position: absolute;
+  top: 20px;
+  bottom: 20px;
+  left: 3px;
+  width: 4px;
+  border-radius: 999px;
+  background: transparent;
+  transition: background 0.2s;
+}
+
+.qd-preview__resize:hover::after,
+.qd-preview__resize:active::after {
+  background: color-mix(in srgb, var(--accent) 24%, transparent);
 }
 
 .qd-preview__panel {
diff --git a/static/src/styles/components/panels/_right-panel.scss b/static/src/styles/components/panels/_right-panel.scss
index cf5a96a7..89a27025 100644
--- a/static/src/styles/components/panels/_right-panel.scss
+++ b/static/src/styles/components/panels/_right-panel.scss
@@ -553,6 +553,32 @@ body[data-theme='dark'] .git-change-file__open-icon {
     cursor: row-resize;
 }
 
+/* 右侧面板左右拖拽手柄：基础样式曾随 _left-panel.scss 在 b593d638 中被误删，
+   导致手柄零宽不可见、git/终端面板无法拖宽；此处按现代 token 恢复。
+   视觉 4px 透明条，::before 向两侧扩 3px 热区便于瞄准，hover/拖拽时高亮 */
+.resize-handle--right-panels {
+    width: 4px;
+    flex-shrink: 0;
+    cursor: col-resize;
+    position: relative;
+    background: transparent;
+    transition: background 0.2s;
+}
+
+.resize-handle--right-panels::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    left: -3px;
+    right: -3px;
+}
+
+.resize-handle--right-panels:hover,
+.resize-handle--right-panels:active {
+    background: color-mix(in srgb, var(--accent) 24%, transparent);
+}
+
 /* 拖拽期间禁用所有过渡，确保跟手 */
 .right-panels--resizing {
     transition: none !important;