diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..30a9902
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,10 @@
+# 默认忽略的文件
+/shelf/
+/workspace.xml
+# Rider 忽略的文件
+/projectSettingsUpdater.xml
+/modules.xml
+/.idea.ttrpg-tools.iml
+/contentModel.xml
+# 基于编辑器的 HTTP 客户端请求
+/httpRequests/
diff --git a/.idea/encodings.xml b/.idea/encodings.xml
new file mode 100644
index 0000000..df87cf9
--- /dev/null
+++ b/.idea/encodings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with BOM under Windows, with no BOM otherwise" />
+</project>
\ No newline at end of file
diff --git a/src/components/card-preview.tsx b/src/components/card-preview.tsx
new file mode 100644
index 0000000..17c6a39
--- /dev/null
+++ b/src/components/card-preview.tsx
@@ -0,0 +1,114 @@
+import { Show, For } from 'solid-js';
+import { marked } from '../markdown';
+import type { CardData, LayerConfig, Dimensions } from './types';
+import { getLayerStyle } from './utils/dimensions';
+import { getSelectionBoxStyle } from './hooks/use-selection';
+
+export interface CardPreviewProps {
+  cards: CardData[];
+  activeTab: number;
+  layerConfigs: LayerConfig[];
+  dimensions: Dimensions;
+  isEditing: boolean;
+  isFixed: boolean;
+  editingLayer: string | null;
+  isSelecting: boolean;
+  selectStart: { x: number; y: number } | null;
+  selectEnd: { x: number; y: number } | null;
+  onMouseDown: (e: MouseEvent) => void;
+  onMouseMove: (e: MouseEvent) => void;
+  onMouseUp: () => void;
+  onMouseLeave: () => void;
+}
+
+/**
+ * 渲染 layer 内容
+ */
+function renderLayer(layer: { prop: string }, cardData: CardData): string {
+  const content = cardData[layer.prop] || '';
+  return marked.parse(content) as string;
+}
+
+export function CardPreview(props: CardPreviewProps) {
+  const currentCard = () => props.cards[props.activeTab];
+  const visibleLayers = () => props.layerConfigs.filter(l => l.visible);
+  const selectionStyle = () =>
+    getSelectionBoxStyle(props.selectStart, props.selectEnd, props.dimensions);
+
+  return (
+    <div class="flex justify-center">
+      <Show when={props.activeTab < props.cards.length}>
+        <div
+          class="relative bg-white border border-gray-300 shadow-lg"
+          style={{
+            width: `${props.dimensions.cardWidth}mm`,
+            height: `${props.dimensions.cardHeight}mm`
+          }}
+          onMouseDown={props.onMouseDown}
+          onMouseMove={props.onMouseMove}
+          onMouseUp={props.onMouseUp}
+          onMouseLeave={props.onMouseLeave}
+        >
+          {/* 框选遮罩 */}
+          <Show when={props.isSelecting && selectionStyle()}>
+            <div
+              class="absolute bg-blue-500/30 border-2 border-blue-500 pointer-events-none"
+              style={selectionStyle()!}
+            />
+          </Show>
+
+          {/* 网格区域容器 */}
+          <div
+            class="absolute"
+            style={{
+              left: `${props.dimensions.gridOriginX}mm`,
+              top: `${props.dimensions.gridOriginY}mm`,
+              width: `${props.dimensions.gridAreaWidth}mm`,
+              height: `${props.dimensions.gridAreaHeight}mm`
+            }}
+          >
+            {/* 编辑模式下的网格线 */}
+            <Show when={props.isEditing && !props.isFixed}>
+              <div class="absolute inset-0 pointer-events-none">
+                <For each={Array.from({ length: props.dimensions.gridW - 1 })}>
+                  {(_, i) => (
+                    <div
+                      class="absolute top-0 bottom-0 border-r border-dashed border-gray-300"
+                      style={{ left: `${(i() + 1) * props.dimensions.cellWidth}mm` }}
+                    />
+                  )}
+                </For>
+                <For each={Array.from({ length: props.dimensions.gridH - 1 })}>
+                  {(_, i) => (
+                    <div
+                      class="absolute left-0 right-0 border-b border-dashed border-gray-300"
+                      style={{ top: `${(i() + 1) * props.dimensions.cellHeight}mm` }}
+                    />
+                  )}
+                </For>
+              </div>
+            </Show>
+
+            {/* 渲染每个 layer */}
+            <For each={visibleLayers()}>
+              {(layer) => {
+                const style = getLayerStyle(layer, props.dimensions);
+                const isEditingThis = props.editingLayer === layer.prop;
+
+                return (
+                  <div
+                    class={`absolute flex items-center justify-center text-center prose prose-sm ${
+                      isEditingThis ? 'bg-blue-500/20 ring-2 ring-blue-500' : ''
+                    }`}
+                    style={style}
+                    innerHTML={renderLayer(layer, currentCard())}
+                  />
+                );
+              }}
+            </For>
+          </div>
+        </div>
+      </Show>
+    </div>
+  );
+}
diff --git a/src/components/editor-panel.tsx b/src/components/editor-panel.tsx
new file mode 100644
index 0000000..8e55a07
--- /dev/null
+++ b/src/components/editor-panel.tsx
@@ -0,0 +1,139 @@
+import { Show, For } from 'solid-js';
+import type { CardData, LayerConfig } from './types';
+
+export interface DataEditorPanelProps {
+  cards: CardData[];
+  activeTab: number;
+  updateCardData: (key: string, value: string) => void;
+}
+
+export interface PropertiesEditorPanelProps {
+  localSize: string;
+  localGrid: string;
+  localBleed: string;
+  localPadding: string;
+  layerConfigs: LayerConfig[];
+  editingLayer: string | null;
+  onSizeChange: (value: string) => void;
+  onGridChange: (value: string) => void;
+  onBleedChange: (value: string) => void;
+  onPaddingChange: (value: string) => void;
+  onToggleLayerVisible: (prop: string) => void;
+  onStartEditingLayer: (prop: string) => void;
+  onCopyCode: () => void;
+}
+
+/**
+ * 左侧：CSV 数据编辑面板
+ */
+export function DataEditorPanel(props: DataEditorPanelProps) {
+  return (
+    <div class="w-64 flex-shrink-0">
+      <h3 class="font-bold mb-2">卡牌数据</h3>
+      <div class="space-y-2 max-h-96 overflow-y-auto">
+        <For each={Object.keys(props.cards[props.activeTab] || {})}>
+          {(key) => (
+            <div>
+              <label class="block text-sm font-medium text-gray-700">{key}</label>
+              <textarea
+                class="w-full border border-gray-300 rounded px-2 py-1 text-sm"
+                rows={3}
+                value={props.cards[props.activeTab]?.[key] || ''}
+                onInput={(e) => props.updateCardData(key, e.target.value)}
+              />
+            </div>
+          )}
+        </For>
+      </div>
+    </div>
+  );
+}
+
+/**
+ * 右侧：卡牌属性编辑面板
+ */
+export function PropertiesEditorPanel(props: PropertiesEditorPanelProps) {
+  return (
+    <div class="w-64 flex-shrink-0">
+      <h3 class="font-bold mb-2">卡牌属性</h3>
+
+      <div class="space-y-3">
+        <div>
+          <label class="block text-sm font-medium text-gray-700">尺寸 (mm)</label>
+          <input
+            type="text"
+            class="w-full border border-gray-300 rounded px-2 py-1 text-sm"
+            value={props.localSize}
+            onInput={(e) => props.onSizeChange(e.target.value)}
+          />
+        </div>
+
+        <div>
+          <label class="block text-sm font-medium text-gray-700">网格</label>
+          <input
+            type="text"
+            class="w-full border border-gray-300 rounded px-2 py-1 text-sm"
+            value={props.localGrid}
+            onInput={(e) => props.onGridChange(e.target.value)}
+          />
+        </div>
+
+        <div>
+          <label class="block text-sm font-medium text-gray-700">出血 (mm)</label>
+          <input
+            type="text"
+            class="w-full border border-gray-300 rounded px-2 py-1 text-sm"
+            value={props.localBleed}
+            onInput={(e) => props.onBleedChange(e.target.value)}
+          />
+        </div>
+
+        <div>
+          <label class="block text-sm font-medium text-gray-700">内边距 (mm)</label>
+          <input
+            type="text"
+            class="w-full border border-gray-300 rounded px-2 py-1 text-sm"
+            value={props.localPadding}
+            onInput={(e) => props.onPaddingChange(e.target.value)}
+          />
+        </div>
+
+        <hr class="my-4" />
+
+        <h4 class="font-medium text-sm text-gray-700">图层</h4>
+        <For each={props.layerConfigs}>
+          {(layer) => (
+            <div class="flex items-center gap-2">
+              <input
+                type="checkbox"
+                checked={layer.visible}
+                onChange={() => props.onToggleLayerVisible(layer.prop)}
+                class="cursor-pointer"
+              />
+              <span class="text-sm flex-1">{layer.prop}</span>
+              <button
+                onClick={() => props.onStartEditingLayer(layer.prop)}
+                class={`text-xs px-2 py-0.5 rounded cursor-pointer ${
+                  props.editingLayer === layer.prop
+                    ? 'bg-blue-500 text-white'
+                    : 'bg-gray-200 text-gray-700 hover:bg-gray-300'
+                }`}
+              >
+                {props.editingLayer === layer.prop ? '✓ 框选' : '编辑位置'}
+              </button>
+            </div>
+          )}
+        </For>
+
+        <hr class="my-4" />
+
+        <button
+          onClick={props.onCopyCode}
+          class="w-full bg-blue-600 hover:bg-blue-700 text-white px-3 py-2 rounded text-sm font-medium cursor-pointer"
+        >
+          📋 复制代码
+        </button>
+      </div>
+    </div>
+  );
+}
diff --git a/src/components/hooks/use-layer-editor.ts b/src/components/hooks/use-layer-editor.ts
new file mode 100644
index 0000000..22210f5
--- /dev/null
+++ b/src/components/hooks/use-layer-editor.ts
@@ -0,0 +1,70 @@
+import { createSignal } from 'solid-js';
+import type { LayerConfig } from '../types';
+import { formatLayers } from '../utils/layer-parser';
+
+/**
+ * 图层编辑相关的状态和操作
+ */
+export function useLayerEditor(
+  props: any,
+  src: string,
+  localSize: () => string,
+  localGrid: () => string,
+  localBleed: () => string,
+  localPadding: () => string
+) {
+  const [isEditing, setIsEditing] = createSignal(false);
+  const [editingLayer, setEditingLayer] = createSignal<string | null>(null);
+  const [layerConfigs, setLayerConfigs] = createSignal<LayerConfig[]>([]);
+
+  const toggleLayerVisible = (prop: string) => {
+    setLayerConfigs(configs => configs.map(c =>
+      c.prop === prop ? { ...c, visible: !c.visible } : c
+    ));
+  };
+
+  const startEditingLayer = (prop: string) => {
+    setEditingLayer(prop);
+  };
+
+  const updateLayerPosition = (x1: number, y1: number, x2: number, y2: number) => {
+    const layer = editingLayer();
+    if (!layer) return;
+
+    setLayerConfigs(configs => configs.map(c =>
+      c.prop === layer ? { ...c, x1, y1, x2, y2 } : c
+    ));
+    setEditingLayer(null);
+  };
+
+  const generateCode = () => {
+    const layersStr = formatLayers(layerConfigs());
+    return `:md-deck[${src}]{size="${localSize()}" grid="${localGrid()}" bleed="${localBleed()}" padding="${localPadding()}" layers="${layersStr}"}`;
+  };
+
+  const copyCode = () => {
+    const code = generateCode();
+    navigator.clipboard.writeText(code).then(() => {
+      alert('已复制到剪贴板！');
+    }).catch(err => {
+      console.error('复制失败:', err);
+    });
+  };
+
+  const isFixed = () => props.fixed === true || props.fixed === 'true';
+
+  return {
+    isEditing,
+    setIsEditing,
+    editingLayer,
+    setEditingLayer,
+    layerConfigs,
+    setLayerConfigs,
+    toggleLayerVisible,
+    startEditingLayer,
+    updateLayerPosition,
+    generateCode,
+    copyCode,
+    isFixed
+  };
+}
diff --git a/src/components/hooks/use-selection.ts b/src/components/hooks/use-selection.ts
new file mode 100644
index 0000000..2c3be09
--- /dev/null
+++ b/src/components/hooks/use-selection.ts
@@ -0,0 +1,109 @@
+import { createSignal } from 'solid-js';
+import type { Dimensions, LayerConfig } from '../types';
+
+/**
+ * 框选相关的状态和操作
+ */
+export function useSelection(
+  isEditing: () => boolean,
+  editingLayer: () => string | null,
+  dimensions: () => Dimensions
+) {
+  const [isSelecting, setIsSelecting] = createSignal(false);
+  const [selectStart, setSelectStart] = createSignal<{ x: number; y: number } | null>(null);
+  const [selectEnd, setSelectEnd] = createSignal<{ x: number; y: number } | null>(null);
+
+  const calculateGridCoords = (e: MouseEvent, cardEl: HTMLElement) => {
+    const rect = cardEl.getBoundingClientRect();
+    const dims = dimensions();
+
+    const offsetX = (e.clientX - rect.left) / rect.width * dims.cardWidth;
+    const offsetY = (e.clientY - rect.top) / rect.height * dims.cardHeight;
+
+    const gridX = Math.max(1, Math.floor((offsetX - dims.gridOriginX) / dims.cellWidth) + 1);
+    const gridY = Math.max(1, Math.floor((offsetY - dims.gridOriginY) / dims.cellHeight) + 1);
+
+    return {
+      gridX: Math.max(1, Math.min(dims.gridW, gridX)),
+      gridY: Math.max(1, Math.min(dims.gridH, gridY))
+    };
+  };
+
+  const handleMouseDown = (e: MouseEvent) => {
+    if (!isEditing() || !editingLayer()) return;
+
+    const cardEl = e.currentTarget as HTMLElement;
+    const { gridX, gridY } = calculateGridCoords(e, cardEl);
+
+    setSelectStart({ x: gridX, y: gridY });
+    setSelectEnd({ x: gridX, y: gridY });
+    setIsSelecting(true);
+  };
+
+  const handleMouseMove = (e: MouseEvent) => {
+    if (!isSelecting()) return;
+
+    const cardEl = e.currentTarget as HTMLElement;
+    const { gridX, gridY } = calculateGridCoords(e, cardEl);
+
+    setSelectEnd({ x: gridX, y: gridY });
+  };
+
+  const handleMouseUp = () => {
+    if (!isSelecting() || !editingLayer()) return;
+
+    const start = selectStart()!;
+    const end = selectEnd()!;
+
+    const x1 = Math.min(start.x, end.x);
+    const y1 = Math.min(start.y, end.y);
+    const x2 = Math.max(start.x, end.x);
+    const y2 = Math.max(start.y, end.y);
+
+    return { x1, y1, x2, y2 };
+  };
+
+  const cancelSelection = () => {
+    setIsSelecting(false);
+    setSelectStart(null);
+    setSelectEnd(null);
+  };
+
+  return {
+    isSelecting,
+    selectStart,
+    selectEnd,
+    handleMouseDown,
+    handleMouseMove,
+    handleMouseUp,
+    cancelSelection
+  };
+}
+
+/**
+ * 计算框选区域的样式
+ */
+export function getSelectionBoxStyle(
+  selectStart: { x: number; y: number } | null,
+  selectEnd: { x: number; y: number } | null,
+  dims: Dimensions
+): { left: string; top: string; width: string; height: string } | null {
+  if (!selectStart || !selectEnd) return null;
+
+  const x1 = Math.min(selectStart.x, selectEnd.x);
+  const y1 = Math.min(selectStart.y, selectEnd.y);
+  const x2 = Math.max(selectStart.x, selectEnd.x);
+  const y2 = Math.max(selectStart.y, selectEnd.y);
+
+  const left = dims.gridOriginX + (x1 - 1) * dims.cellWidth;
+  const top = dims.gridOriginY + (y1 - 1) * dims.cellHeight;
+  const width = (x2 - x1 + 1) * dims.cellWidth;
+  const height = (y2 - y1 + 1) * dims.cellHeight;
+
+  return {
+    left: `${left}mm`,
+    top: `${top}mm`,
+    width: `${width}mm`,
+    height: `${height}mm`
+  };
+}
diff --git a/src/components/md-deck.tsx b/src/components/md-deck.tsx
index ad58e5b..ee59ce2 100644
--- a/src/components/md-deck.tsx
+++ b/src/components/md-deck.tsx
@@ -1,66 +1,19 @@
 import { customElement, noShadowDOM } from 'solid-element';
-import { createSignal, For, Show, createEffect, createMemo, createResource, onMount } from 'solid-js';
-import { parse } from 'csv-parse/browser/esm/sync';
-import { marked } from '../markdown';
+import { createSignal, For, Show, createEffect, createMemo, createResource } from 'solid-js';
 import { resolvePath } from '../utils/path';
+import type { CardData, Dimensions } from './types';
+import { loadCSV } from './utils/csv-loader';
+import { initLayerConfigs } from './utils/layer-parser';
+import { calculateDimensions } from './utils/dimensions';
+import { useSelection } from './hooks/use-selection';
+import { useLayerEditor } from './hooks/use-layer-editor';
+import { CardPreview } from './card-preview';
+import { DataEditorPanel, PropertiesEditorPanel } from './editor-panel';
 
-interface CardData {
-  [key: string]: string;
-}
-
-interface Layer {
-  prop: string;
-  x1: number;
-  y1: number;
-  x2: number;
-  y2: number;
-}
-
-interface LayerConfig {
-  prop: string;
-  visible: boolean;
-  x1: number;
-  y1: number;
-  x2: number;
-  y2: number;
-}
-
-// 解析 layers 字符串 "body:1,7-5,8 title:1,1-5,1"
-function parseLayers(layersStr: string): Layer[] {
-  if (!layersStr) return [];
-
-  const layers: Layer[] = [];
-  const regex = /(\w+):(\d+),(\d+)-(\d+),(\d+)/g;
-  let match;
-
-  while ((match = regex.exec(layersStr)) !== null) {
-    layers.push({
-      prop: match[1],
-      x1: parseInt(match[2]),
-      y1: parseInt(match[3]),
-      x2: parseInt(match[4]),
-      y2: parseInt(match[5])
-    });
-  }
-
-  return layers;
-}
-
-// 格式化 layers 为字符串
-function formatLayers(layers: LayerConfig[]): string {
-  return layers
-    .filter(l => l.visible)
-    .map(l => `${l.prop}:${l.x1},${l.y1}-${l.x2},${l.y2}`)
-    .join(' ');
-}
-
-// 全局缓存已加载的 CSV 内容
-const csvCache = new Map<string, CardData[]>();
-
-customElement('md-deck', { 
-  size: '54x86', 
-  grid: '5x8', 
-  bleed: '1', 
+customElement('md-deck', {
+  size: '54x86',
+  grid: '5x8',
+  bleed: '1',
   padding: '2',
   layers: '',
   fixed: false
@@ -71,22 +24,22 @@ customElement('md-deck', {
   const [activeTab, setActiveTab] = createSignal(0);
   let tabsContainer: HTMLDivElement | undefined;
 
-  // 编辑器状态
-  const [isEditing, setIsEditing] = createSignal(false);
-  const [editingLayer, setEditingLayer] = createSignal<string | null>(null);
-  const [layerConfigs, setLayerConfigs] = createSignal<LayerConfig[]>([]);
-  
-  // 框选状态
-  const [isSelecting, setIsSelecting] = createSignal(false);
-  const [selectStart, setSelectStart] = createSignal<{ x: number; y: number } | null>(null);
-  const [selectEnd, setSelectEnd] = createSignal<{ x: number; y: number } | null>(null);
-  
   // 本地编辑的属性
   const [localSize, setLocalSize] = createSignal(props.size as string || '54x86');
   const [localGrid, setLocalGrid] = createSignal(props.grid as string || '5x8');
   const [localBleed, setLocalBleed] = createSignal(props.bleed as string || '1');
   const [localPadding, setLocalPadding] = createSignal(props.padding as string || '2');
 
+  // 使用图层编辑器 hook
+  const layerEditor = useLayerEditor(
+    props,
+    '',
+    localSize,
+    localGrid,
+    localBleed,
+    localPadding
+  );
+
   // 从 element 的 textContent 获取 CSV 路径
   const src = element?.textContent?.trim() || '';
 
@@ -102,205 +55,51 @@ customElement('md-deck', {
   // 解析相对路径
   const resolvedSrc = resolvePath(articlePath, src);
 
-  // 加载 CSV 文件的函数
-  const loadCSV = async (path: string): Promise<CardData[]> => {
-    if (csvCache.has(path)) {
-      return csvCache.get(path)!;
-    }
-    const response = await fetch(path);
-    const content = await response.text();
-    const records = parse(content, {
-      columns: true,
-      comment: '#',
-      trim: true,
-      skipEmptyLines: true
-    });
-    const result = records as CardData[];
-    csvCache.set(path, result);
-    return result;
-  };
-
+  // 加载 CSV 文件
   const [csvData] = createResource(() => resolvedSrc, loadCSV);
 
   createEffect(() => {
     const data = csvData();
     if (data) {
       setCards(data);
-      // 初始化 layer configs
-      const parsed = parseLayers(props.layers as string || '');
-      const allProps = Object.keys(data[0] || {}).filter(k => k !== 'label');
-      const configs: LayerConfig[] = allProps.map(prop => {
-        const existing = parsed.find(l => l.prop === prop);
-        return {
-          prop,
-          visible: !!existing,
-          x1: existing?.x1 || 1,
-          y1: existing?.y1 || 1,
-          x2: existing?.x2 || 2,
-          y2: existing?.y2 || 2
-        };
-      });
-      setLayerConfigs(configs);
+      layerEditor.setLayerConfigs(initLayerConfigs(data, props.layers as string || ''));
     }
   });
 
-  // 检查是否 fixed
-  const isFixed = () => props.fixed === true || props.fixed === 'true';
-
-  // 解析尺寸
-  const dimensions = createMemo(() => {
-    const [width, height] = localSize().split('x').map(Number);
-    const [bleedW, bleedH] = localBleed().includes('x') 
-      ? localBleed().split('x').map(Number)
-      : [Number(localBleed()), Number(localBleed())];
-    const [padW, padH] = localPadding().includes('x')
-      ? localPadding().split('x').map(Number)
-      : [Number(localPadding()), Number(localPadding())];
-
-    // 实际卡牌尺寸（含出血）
-    const cardWidth = width + bleedW * 2;
-    const cardHeight = height + bleedH * 2;
-
-    // 网格区域尺寸（减去 padding）
-    const gridAreaWidth = width - padW * 2;
-    const gridAreaHeight = height - padH * 2;
-
-    // 解析网格
-    const [gridW, gridH] = localGrid().split('x').map(Number);
-
-    // 每个网格单元的尺寸（mm）
-    const cellWidth = gridAreaWidth / gridW;
-    const cellHeight = gridAreaHeight / gridH;
-
-    // 网格区域起点（相对于卡牌左上角，含 bleed 和 padding）
-    const gridOriginX = bleedW + padW;
-    const gridOriginY = bleedH + padH;
-
-    return {
-      cardWidth,
-      cardHeight,
-      gridAreaWidth,
-      gridAreaHeight,
-      cellWidth,
-      cellHeight,
-      gridW,
-      gridH,
-      gridOriginX,
-      gridOriginY
-    };
+  // 更新 src 到 layerEditor
+  createEffect(() => {
+    (layerEditor as any).src = src;
   });
 
-  // 渲染 layer 内容
-  const renderLayer = (layer: Layer, cardData: CardData): string => {
-    const content = cardData[layer.prop] || '';
-    return marked.parse(content) as string;
-  };
-
-  // 计算 layer 位置样式（单位：mm）
-  const getLayerStyle = (layer: Layer, dims: ReturnType<typeof dimensions>) => {
-    const left = (layer.x1 - 1) * dims.cellWidth;
-    const top = (layer.y1 - 1) * dims.cellHeight;
-    const width = (layer.x2 - layer.x1 + 1) * dims.cellWidth;
-    const height = (layer.y2 - layer.y1 + 1) * dims.cellHeight;
-
-    return {
-      left: `${left}mm`,
-      top: `${top}mm`,
-      width: `${width}mm`,
-      height: `${height}mm`
-    };
-  };
-
-  // 开始框选
-  const handleCardMouseDown = (e: MouseEvent) => {
-    if (!isEditing() || !editingLayer()) return;
-    
-    const cardEl = e.currentTarget as HTMLElement;
-    const rect = cardEl.getBoundingClientRect();
-    const dims = dimensions();
-    
-    // 计算相对于网格区域起点的坐标（网格单位）
-    const offsetX = (e.clientX - rect.left) / rect.width * dims.cardWidth;
-    const offsetY = (e.clientY - rect.top) / rect.height * dims.cardHeight;
-    
-    const gridX = Math.max(1, Math.floor((offsetX - dims.gridOriginX) / dims.cellWidth) + 1);
-    const gridY = Math.max(1, Math.floor((offsetY - dims.gridOriginY) / dims.cellHeight) + 1);
-    
-    setSelectStart({ x: gridX, y: gridY });
-    setSelectEnd({ x: gridX, y: gridY });
-    setIsSelecting(true);
-  };
-
-  // 更新框选结束位置
-  const handleCardMouseMove = (e: MouseEvent) => {
-    if (!isSelecting()) return;
-    
-    const cardEl = e.currentTarget as HTMLElement;
-    const rect = cardEl.getBoundingClientRect();
-    const dims = dimensions();
-    
-    const offsetX = (e.clientX - rect.left) / rect.width * dims.cardWidth;
-    const offsetY = (e.clientY - rect.top) / rect.height * dims.cardHeight;
-    
-    const gridX = Math.max(1, Math.min(dims.gridW, Math.floor((offsetX - dims.gridOriginX) / dims.cellWidth) + 1));
-    const gridY = Math.max(1, Math.min(dims.gridH, Math.floor((offsetY - dims.gridOriginY) / dims.cellHeight) + 1));
-    
-    setSelectEnd({ x: gridX, y: gridY });
-  };
-
-  // 结束框选
-  const handleCardMouseUp = () => {
-    if (!isSelecting() || !editingLayer()) return;
-    
-    const start = selectStart()!;
-    const end = selectEnd()!;
-    
-    const x1 = Math.min(start.x, end.x);
-    const y1 = Math.min(start.y, end.y);
-    const x2 = Math.max(start.x, end.x);
-    const y2 = Math.max(start.y, end.y);
-    
-    setLayerConfigs(configs => configs.map(c => 
-      c.prop === editingLayer() ? { ...c, x1, y1, x2, y2 } : c
-    ));
-    
-    setIsSelecting(false);
-    setSelectStart(null);
-    setSelectEnd(null);
-    setEditingLayer(null);
-  };
-
-  // 切换图层可见性
-  const toggleLayerVisible = (prop: string) => {
-    setLayerConfigs(configs => configs.map(c => 
-      c.prop === prop ? { ...c, visible: !c.visible } : c
-    ));
-  };
-
-  // 开始编辑图层位置
-  const startEditingLayer = (prop: string) => {
-    setEditingLayer(prop);
-  };
-
-  // 生成 md-deck 代码
-  const generateCode = () => {
-    const layersStr = formatLayers(layerConfigs());
-    return `:md-deck[${src}]{size="${localSize()}" grid="${localGrid()}" bleed="${localBleed()}" padding="${localPadding()}" layers="${layersStr}"}`;
-  };
-
-  // 复制代码
-  const copyCode = () => {
-    const code = generateCode();
-    navigator.clipboard.writeText(code).then(() => {
-      alert('已复制到剪贴板！');
-    }).catch(err => {
-      console.error('复制失败:', err);
+  // 解析尺寸
+  const dimensions = createMemo((): Dimensions => {
+    return calculateDimensions({
+      size: localSize(),
+      bleed: localBleed(),
+      padding: localPadding(),
+      grid: localGrid()
     });
+  });
+
+  // 使用框选 hook
+  const selection = useSelection(
+    layerEditor.isEditing,
+    layerEditor.editingLayer,
+    dimensions
+  );
+
+  // 处理框选完成
+  const handleMouseUp = () => {
+    const result = selection.handleMouseUp();
+    if (result) {
+      layerEditor.updateLayerPosition(result.x1, result.y1, result.x2, result.y2);
+      selection.cancelSelection();
+    }
   };
 
   // 更新 CSV 数据
   const updateCardData = (key: string, value: string) => {
-    setCards(cards => cards.map((card, i) => 
+    setCards(cards => cards.map((card, i) =>
       i === activeTab() ? { ...card, [key]: value } : card
     ));
   };
@@ -308,40 +107,27 @@ customElement('md-deck', {
   return (
     <div class="md-deck flex gap-4">
       {/* 左侧：CSV 数据编辑 */}
-      <Show when={isEditing() && !isFixed()}>
-        <div class="w-64 flex-shrink-0">
-          <h3 class="font-bold mb-2">卡牌数据</h3>
-          <div class="space-y-2 max-h-96 overflow-y-auto">
-            <For each={Object.keys(cards()[activeTab()] || {})}>
-              {(key) => (
-                <div>
-                  <label class="block text-sm font-medium text-gray-700">{key}</label>
-                  <textarea
-                    class="w-full border border-gray-300 rounded px-2 py-1 text-sm"
-                    rows={3}
-                    value={cards()[activeTab()]?.[key] || ''}
-                    onInput={(e) => updateCardData(key, e.target.value)}
-                  />
-                </div>
-              )}
-            </For>
-          </div>
-        </div>
+      <Show when={layerEditor.isEditing() && !layerEditor.isFixed()}>
+        <DataEditorPanel
+          cards={cards()}
+          activeTab={activeTab()}
+          updateCardData={updateCardData}
+        />
       </Show>
 
-      {/* 中间：卡牌预览 */}
+      {/* 中间：卡牌预览和控制 */}
       <div class="flex-1">
         {/* Tab 选择器 */}
         <div class="flex items-center gap-2 border-b border-gray-200 pb-2 mb-4">
           <button
-            onClick={() => setIsEditing(!isEditing())}
+            onClick={() => layerEditor.setIsEditing(!layerEditor.isEditing())}
             class={`px-3 py-1 rounded text-sm font-medium transition-colors ${
-              isEditing() && !isFixed()
+              layerEditor.isEditing() && !layerEditor.isFixed()
                 ? 'bg-blue-100 text-blue-600'
                 : 'bg-gray-100 text-gray-600 hover:bg-gray-200'
             } cursor-pointer`}
           >
-            {isEditing() ? '✓ 编辑中' : '✏️ 编辑'}
+            {layerEditor.isEditing() ? '✓ 编辑中' : '✏️ 编辑'}
           </button>
           <div ref={tabsContainer} class="flex gap-1 overflow-x-auto flex-1 min-w-0 flex-wrap">
             <For each={cards()}>
@@ -363,195 +149,42 @@ customElement('md-deck', {
 
         {/* 卡牌预览 */}
         <Show when={!csvData.loading && cards().length > 0}>
-          <div class="flex justify-center">
-            <Show when={activeTab() < cards().length}>
-              {(() => {
-                const currentCard = cards()[activeTab()];
-                const dims = dimensions();
-                const visibleLayers = layerConfigs().filter(l => l.visible);
-
-                return (
-                  <div
-                    class="relative bg-white border border-gray-300 shadow-lg"
-                    style={{
-                      width: `${dims.cardWidth}mm`,
-                      height: `${dims.cardHeight}mm`
-                    }}
-                    onMouseDown={handleCardMouseDown}
-                    onMouseMove={handleCardMouseMove}
-                    onMouseUp={handleCardMouseUp}
-                    onMouseLeave={handleCardMouseUp}
-                  >
-                    {/* 框选遮罩 */}
-                    <Show when={isSelecting() && selectStart() && selectEnd()}>
-                      {(() => {
-                        const start = selectStart()!;
-                        const end = selectEnd()!;
-                        const x1 = Math.min(start.x, end.x);
-                        const y1 = Math.min(start.y, end.y);
-                        const x2 = Math.max(start.x, end.x);
-                        const y2 = Math.max(start.y, end.y);
-
-                        const left = dims.gridOriginX + (x1 - 1) * dims.cellWidth;
-                        const top = dims.gridOriginY + (y1 - 1) * dims.cellHeight;
-                        const width = (x2 - x1 + 1) * dims.cellWidth;
-                        const height = (y2 - y1 + 1) * dims.cellHeight;
-
-                        return (
-                          <div
-                            class="absolute bg-blue-500/30 border-2 border-blue-500 pointer-events-none"
-                            style={{
-                              left: `${left}mm`,
-                              top: `${top}mm`,
-                              width: `${width}mm`,
-                              height: `${height}mm`
-                            }}
-                          />
-                        );
-                      })()}
-                    </Show>
-
-                    {/* 网格区域容器 */}
-                    <div
-                      class="absolute"
-                      style={{
-                        left: `${dims.gridOriginX}mm`,
-                        top: `${dims.gridOriginY}mm`,
-                        width: `${dims.gridAreaWidth}mm`,
-                        height: `${dims.gridAreaHeight}mm`
-                      }}
-                    >
-                      {/* 编辑模式下的网格线 */}
-                      <Show when={isEditing() && !isFixed()}>
-                        <div class="absolute inset-0 pointer-events-none">
-                          <For each={Array.from({ length: dims.gridW - 1 })}>
-                            {(_, i) => (
-                              <div
-                                class="absolute top-0 bottom-0 border-r border-dashed border-gray-300"
-                                style={{ left: `${(i() + 1) * dims.cellWidth}mm` }}
-                              />
-                            )}
-                          </For>
-                          <For each={Array.from({ length: dims.gridH - 1 })}>
-                            {(_, i) => (
-                              <div
-                                class="absolute left-0 right-0 border-b border-dashed border-gray-300"
-                                style={{ top: `${(i() + 1) * dims.cellHeight}mm` }}
-                              />
-                            )}
-                          </For>
-                        </div>
-                      </Show>
-
-                      {/* 渲染每个 layer */}
-                      <For each={visibleLayers}>
-                        {(layer) => {
-                          const style = getLayerStyle(layer, dims);
-                          const isEditingThis = editingLayer() === layer.prop;
-                          
-                          return (
-                            <div
-                              class={`absolute flex items-center justify-center text-center prose prose-sm ${
-                                isEditingThis ? 'bg-blue-500/20 ring-2 ring-blue-500' : ''
-                              }`}
-                              style={style}
-                              innerHTML={renderLayer(layer, currentCard)}
-                            />
-                          );
-                        }}
-                      </For>
-                    </div>
-                  </div>
-                );
-              })()}
-            </Show>
-          </div>
+          <CardPreview
+            cards={cards()}
+            activeTab={activeTab()}
+            layerConfigs={layerEditor.layerConfigs()}
+            dimensions={dimensions()}
+            isEditing={layerEditor.isEditing()}
+            isFixed={layerEditor.isFixed()}
+            editingLayer={layerEditor.editingLayer()}
+            isSelecting={selection.isSelecting()}
+            selectStart={selection.selectStart()}
+            selectEnd={selection.selectEnd()}
+            onMouseDown={selection.handleMouseDown}
+            onMouseMove={selection.handleMouseMove}
+            onMouseUp={handleMouseUp}
+            onMouseLeave={handleMouseUp}
+          />
         </Show>
       </div>
 
       {/* 右侧：属性编辑表单 */}
-      <Show when={isEditing() && !isFixed()}>
-        <div class="w-64 flex-shrink-0">
-          <h3 class="font-bold mb-2">卡牌属性</h3>
-          
-          <div class="space-y-3">
-            <div>
-              <label class="block text-sm font-medium text-gray-700">尺寸 (mm)</label>
-              <input
-                type="text"
-                class="w-full border border-gray-300 rounded px-2 py-1 text-sm"
-                value={localSize()}
-                onInput={(e) => setLocalSize(e.target.value)}
-              />
-            </div>
-            
-            <div>
-              <label class="block text-sm font-medium text-gray-700">网格</label>
-              <input
-                type="text"
-                class="w-full border border-gray-300 rounded px-2 py-1 text-sm"
-                value={localGrid()}
-                onInput={(e) => setLocalGrid(e.target.value)}
-              />
-            </div>
-            
-            <div>
-              <label class="block text-sm font-medium text-gray-700">出血 (mm)</label>
-              <input
-                type="text"
-                class="w-full border border-gray-300 rounded px-2 py-1 text-sm"
-                value={localBleed()}
-                onInput={(e) => setLocalBleed(e.target.value)}
-              />
-            </div>
-            
-            <div>
-              <label class="block text-sm font-medium text-gray-700">内边距 (mm)</label>
-              <input
-                type="text"
-                class="w-full border border-gray-300 rounded px-2 py-1 text-sm"
-                value={localPadding()}
-                onInput={(e) => setLocalPadding(e.target.value)}
-              />
-            </div>
-            
-            <hr class="my-4" />
-            
-            <h4 class="font-medium text-sm text-gray-700">图层</h4>
-            <For each={layerConfigs()}>
-              {(layer) => (
-                <div class="flex items-center gap-2">
-                  <input
-                    type="checkbox"
-                    checked={layer.visible}
-                    onChange={() => toggleLayerVisible(layer.prop)}
-                    class="cursor-pointer"
-                  />
-                  <span class="text-sm flex-1">{layer.prop}</span>
-                  <button
-                    onClick={() => startEditingLayer(layer.prop)}
-                    class={`text-xs px-2 py-0.5 rounded cursor-pointer ${
-                      editingLayer() === layer.prop
-                        ? 'bg-blue-500 text-white'
-                        : 'bg-gray-200 text-gray-700 hover:bg-gray-300'
-                    }`}
-                  >
-                    {editingLayer() === layer.prop ? '✓ 框选' : '编辑位置'}
-                  </button>
-                </div>
-              )}
-            </For>
-            
-            <hr class="my-4" />
-            
-            <button
-              onClick={copyCode}
-              class="w-full bg-blue-600 hover:bg-blue-700 text-white px-3 py-2 rounded text-sm font-medium cursor-pointer"
-            >
-              📋 复制代码
-            </button>
-          </div>
-        </div>
+      <Show when={layerEditor.isEditing() && !layerEditor.isFixed()}>
+        <PropertiesEditorPanel
+          localSize={localSize()}
+          localGrid={localGrid()}
+          localBleed={localBleed()}
+          localPadding={localPadding()}
+          layerConfigs={layerEditor.layerConfigs()}
+          editingLayer={layerEditor.editingLayer()}
+          onSizeChange={setLocalSize}
+          onGridChange={setLocalGrid}
+          onBleedChange={setLocalBleed}
+          onPaddingChange={setLocalPadding}
+          onToggleLayerVisible={layerEditor.toggleLayerVisible}
+          onStartEditingLayer={layerEditor.startEditingLayer}
+          onCopyCode={layerEditor.copyCode}
+        />
       </Show>
     </div>
   );
diff --git a/src/components/types.ts b/src/components/types.ts
new file mode 100644
index 0000000..e7f3870
--- /dev/null
+++ b/src/components/types.ts
@@ -0,0 +1,39 @@
+export interface CardData {
+  [key: string]: string;
+}
+
+export interface Layer {
+  prop: string;
+  x1: number;
+  y1: number;
+  x2: number;
+  y2: number;
+}
+
+export interface LayerConfig {
+  prop: string;
+  visible: boolean;
+  x1: number;
+  y1: number;
+  x2: number;
+  y2: number;
+}
+
+export interface Dimensions {
+  cardWidth: number;
+  cardHeight: number;
+  gridAreaWidth: number;
+  gridAreaHeight: number;
+  cellWidth: number;
+  cellHeight: number;
+  gridW: number;
+  gridH: number;
+  gridOriginX: number;
+  gridOriginY: number;
+}
+
+export interface SelectionState {
+  isSelecting: boolean;
+  selectStart: { x: number; y: number } | null;
+  selectEnd: { x: number; y: number } | null;
+}
diff --git a/src/components/utils/csv-loader.ts b/src/components/utils/csv-loader.ts
new file mode 100644
index 0000000..7233952
--- /dev/null
+++ b/src/components/utils/csv-loader.ts
@@ -0,0 +1,29 @@
+import { parse } from 'csv-parse/browser/esm/sync';
+import type { CardData } from '../types';
+
+/**
+ * 全局缓存已加载的 CSV 内容
+ */
+const csvCache = new Map<string, CardData[]>();
+
+/**
+ * 加载 CSV 文件
+ */
+export async function loadCSV(path: string): Promise<CardData[]> {
+  if (csvCache.has(path)) {
+    return csvCache.get(path)!;
+  }
+
+  const response = await fetch(path);
+  const content = await response.text();
+  const records = parse(content, {
+    columns: true,
+    comment: '#',
+    trim: true,
+    skipEmptyLines: true
+  });
+
+  const result = records as CardData[];
+  csvCache.set(path, result);
+  return result;
+}
diff --git a/src/components/utils/dimensions.ts b/src/components/utils/dimensions.ts
new file mode 100644
index 0000000..8098791
--- /dev/null
+++ b/src/components/utils/dimensions.ts
@@ -0,0 +1,73 @@
+import type { Dimensions } from '../types';
+
+export interface DimensionOptions {
+  size: string;
+  bleed: string;
+  padding: string;
+  grid: string;
+}
+
+/**
+ * 解析卡牌尺寸和网格配置
+ */
+export function calculateDimensions(options: DimensionOptions): Dimensions {
+  const [width, height] = options.size.split('x').map(Number);
+  const [bleedW, bleedH] = options.bleed.includes('x')
+    ? options.bleed.split('x').map(Number)
+    : [Number(options.bleed), Number(options.bleed)];
+  const [padW, padH] = options.padding.includes('x')
+    ? options.padding.split('x').map(Number)
+    : [Number(options.padding), Number(options.padding)];
+
+  // 实际卡牌尺寸（含出血）
+  const cardWidth = width + bleedW * 2;
+  const cardHeight = height + bleedH * 2;
+
+  // 网格区域尺寸（减去 padding）
+  const gridAreaWidth = width - padW * 2;
+  const gridAreaHeight = height - padH * 2;
+
+  // 解析网格
+  const [gridW, gridH] = options.grid.split('x').map(Number);
+
+  // 每个网格单元的尺寸（mm）
+  const cellWidth = gridAreaWidth / gridW;
+  const cellHeight = gridAreaHeight / gridH;
+
+  // 网格区域起点（相对于卡牌左上角，含 bleed 和 padding）
+  const gridOriginX = bleedW + padW;
+  const gridOriginY = bleedH + padH;
+
+  return {
+    cardWidth,
+    cardHeight,
+    gridAreaWidth,
+    gridAreaHeight,
+    cellWidth,
+    cellHeight,
+    gridW,
+    gridH,
+    gridOriginX,
+    gridOriginY
+  };
+}
+
+/**
+ * 计算 layer 位置样式（单位：mm）
+ */
+export function getLayerStyle(
+  layer: { x1: number; y1: number; x2: number; y2: number },
+  dims: Dimensions
+): { left: string; top: string; width: string; height: string } {
+  const left = (layer.x1 - 1) * dims.cellWidth;
+  const top = (layer.y1 - 1) * dims.cellHeight;
+  const width = (layer.x2 - layer.x1 + 1) * dims.cellWidth;
+  const height = (layer.y2 - layer.y1 + 1) * dims.cellHeight;
+
+  return {
+    left: `${left}mm`,
+    top: `${top}mm`,
+    width: `${width}mm`,
+    height: `${height}mm`
+  };
+}
diff --git a/src/components/utils/layer-parser.ts b/src/components/utils/layer-parser.ts
new file mode 100644
index 0000000..8b602df
--- /dev/null
+++ b/src/components/utils/layer-parser.ts
@@ -0,0 +1,57 @@
+import type { Layer, LayerConfig } from './types';
+
+/**
+ * 解析 layers 字符串 "body:1,7-5,8 title:1,1-5,1"
+ */
+export function parseLayers(layersStr: string): Layer[] {
+  if (!layersStr) return [];
+
+  const layers: Layer[] = [];
+  const regex = /(\w+):(\d+),(\d+)-(\d+),(\d+)/g;
+  let match;
+
+  while ((match = regex.exec(layersStr)) !== null) {
+    layers.push({
+      prop: match[1],
+      x1: parseInt(match[2]),
+      y1: parseInt(match[3]),
+      x2: parseInt(match[4]),
+      y2: parseInt(match[5])
+    });
+  }
+
+  return layers;
+}
+
+/**
+ * 格式化 layers 为字符串
+ */
+export function formatLayers(layers: LayerConfig[]): string {
+  return layers
+    .filter(l => l.visible)
+    .map(l => `${l.prop}:${l.x1},${l.y1}-${l.x2},${l.y2}`)
+    .join(' ');
+}
+
+/**
+ * 初始化图层配置
+ */
+export function initLayerConfigs(
+  data: any[],
+  existingLayersStr: string
+): LayerConfig[] {
+  const parsed = parseLayers(existingLayersStr);
+  const allProps = Object.keys(data[0] || {}).filter(k => k !== 'label');
+  
+  return allProps.map(prop => {
+    const existing = parsed.find(l => l.prop === prop);
+    return {
+      prop,
+      visible: !!existing,
+      x1: existing?.x1 || 1,
+      y1: existing?.y1 || 1,
+      x2: existing?.x2 || 2,
+      y2: existing?.y2 || 2
+    };
+  });
+}