diff --git a/app/components/ui/Cascader.tsx b/app/components/ui/Cascader.tsx
new file mode 100644
index 0000000..ce6e2d3
--- /dev/null
+++ b/app/components/ui/Cascader.tsx
@@ -0,0 +1,83 @@
+import React, { useState, useEffect, useRef } from 'react';
+
+type Option = {
+  value: string;
+  label: string;
+  children?: Option[];
+};
+
+type CascaderProps = {
+  options: Option[];
+  defaultValue?: string[];
+  onChange?: (value: string[]) => void;
+  placeholder?: string;
+};
+
+const Cascader: React.FC<CascaderProps> = ({ options, defaultValue = [], onChange, placeholder = 'Select' }) => {
+  const [visible, setVisible] = useState(false);
+  const [selected, setSelected] = useState<string[]>(defaultValue);
+  const [menus, setMenus] = useState<Option[][]>([options]);
+  const containerRef = useRef<HTMLDivElement>(null);
+
+  useEffect(() => {
+    const handleClickOutside = (event: MouseEvent) => {
+      if (containerRef.current && !containerRef.current.contains(event.target as Node)) {
+        setVisible(false);
+      }
+    };
+    document.addEventListener('mousedown', handleClickOutside);
+    return () => document.removeEventListener('mousedown', handleClickOutside);
+  }, []);
+
+  const handleItemClick = (option: Option, level: number) => {
+    const newSelected = selected.slice(0, level).concat(option.value);
+    setSelected(newSelected);
+    if (option.children) {
+      setMenus(menus.slice(0, level + 1).concat([option.children]));
+    } else {
+      setMenus(menus.slice(0, level + 1));
+      setVisible(false);
+      onChange?.(newSelected);
+    }
+  };
+
+  const getDisplayText = () => {
+    if (selected.length === 0) return placeholder;
+    let currentOptions = options;
+    return selected.map(val => {
+      const opt = currentOptions.find(o => o.value === val);
+      currentOptions = opt?.children || [];
+      return opt?.label || '';
+    }).join(' / ');
+  };
+
+  return (
+    <div ref={containerRef} className="relative inline-block">
+      <div
+        className="border border-gray-300 rounded px-3 py-1 cursor-pointer"
+        onClick={() => setVisible(!visible)}
+      >
+        {getDisplayText()}
+      </div>
+      {visible && (
+        <div className="absolute z-10 bg-white border border-gray-300 rounded shadow-lg mt-1 flex">
+          {menus.map((menu, level) => (
+            <ul key={level} className="list-none m-0 p-0 min-w-[150px] border-r border-gray-200 last:border-r-0">
+              {menu.map(option => (
+                <li
+                  key={option.value}
+                  className={`px-3 py-1 cursor-pointer hover:bg-gray-100 ${selected[level] === option.value ? 'bg-gray-200' : ''}`}
+                  onClick={() => handleItemClick(option, level)}
+                >
+                  {option.label}
+                </li>
+              ))}
+            </ul>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default Cascader;
\ No newline at end of file
diff --git a/app/components/ui/DateRangePicker.tsx b/app/components/ui/DateRangePicker.tsx
index 400c7cb..05942c0 100644
--- a/app/components/ui/DateRangePicker.tsx
+++ b/app/components/ui/DateRangePicker.tsx
@@ -16,6 +16,17 @@ export interface DateRangePickerProps {
   colorMode?: 'light' | 'dark' | 'auto';
 }
 
+export interface SingleDatePickerProps {
+  date: string;
+  onDateChange: (value: string) => void;
+  label?: string;
+  className?: string;
+  id?: string;
+  format?: string;
+  placeholder?: string;
+  colorMode?: 'light' | 'dark' | 'auto';
+}
+
 export function links() {
   return [
     { rel: "stylesheet", href: dateRangePickerStyles }
@@ -199,6 +210,117 @@ export function DateRangePicker({
   );
 }
 
+/**
+ * 单日期选择器组件
+ * 用于选择单个日期
+ */
+export function SingleDatePicker({
+  date,
+  onDateChange,
+  label = "日期",
+  className = "",
+  id = "date-single",
+  format = "yyyy-MM-dd",
+  placeholder = "请选择日期",
+  colorMode = 'auto'
+}: SingleDatePickerProps) {
+  // 使用ref获取input元素
+  const inputRef = useRef<HTMLInputElement>(null);
+  
+  // 添加状态跟踪日期输入框是否被聚焦
+  const [isFocused, setIsFocused] = useState<boolean>(false);
+  
+  // 格式化显示日期
+  const formattedDate = date ? formatDate(date, format) : "";
+  
+  // 保持原始日期输入框的显示格式
+  useEffect(() => {
+    if (inputRef.current) {
+      inputRef.current.setAttribute('data-display-value', formattedDate || placeholder);
+    }
+  }, [formattedDate, placeholder]);
+  
+  // 处理日期输入框全局点击
+  const handleWrapperClick = () => {
+    if (inputRef.current) {
+      // 点击整个包装器区域时，触发输入框点击
+      inputRef.current.focus();
+      inputRef.current.click();
+      
+      try {
+        // 检查并使用showPicker API
+        const hasShowPicker = typeof inputRef.current.showPicker === 'function';
+        
+        // 尝试使用showPicker API
+        if (hasShowPicker) {
+          inputRef.current.showPicker();
+        }
+      } catch (error) {
+        console.error('Failed to show date picker:', error);
+      }
+    }
+  };
+  
+  // 处理键盘事件
+  const handleKeyDown = (e: React.KeyboardEvent) => {
+    if (e.key === 'Enter' || e.key === ' ') {
+      e.preventDefault();
+      handleWrapperClick();
+    }
+  };
+  
+  // 处理聚焦和失焦
+  const handleFocus = () => {
+    setIsFocused(true);
+  };
+  
+  const handleBlur = () => {
+    setIsFocused(false);
+  };
+  
+  // 获取颜色模式类名
+  const getColorModeClass = () => {
+    if (colorMode === 'light') return 'color-mode-light';
+    if (colorMode === 'dark') return 'color-mode-dark';
+    return ''; // auto模式不添加额外类名
+  };
+  
+  return (
+    <div className={`date-picker single-date-picker ${getColorModeClass()} ${className}`}>
+      <div className="date-field">
+        <label htmlFor={id} className="date-label">{label}</label>
+        <div 
+          className={`date-input-wrapper ${isFocused ? 'focused' : ''}`} 
+          onClick={(e) => {
+            e.stopPropagation();
+            handleWrapperClick();
+          }}
+          onKeyDown={handleKeyDown}
+          tabIndex={0}
+          role="button"
+          aria-label={`选择${label}`}
+        >
+          <input 
+            id={id}
+            ref={inputRef}
+            type="date" 
+            className="date-input" 
+            value={date}
+            onChange={(e) => onDateChange(e.target.value)}
+            onFocus={handleFocus}
+            onBlur={handleBlur}
+          />
+          <div 
+            className={`date-display ${!formattedDate ? 'placeholder' : ''}`}
+          >
+            {formattedDate || placeholder}
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
+
 // 简化版日期范围选择器，适用于紧凑布局，不显示标签
 export function SimpleDateRangePicker({
   startDate,
@@ -344,4 +466,4 @@ export function SimpleDateRangePicker({
       </div>
     </div>
   );
-} 
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/app/components/ui/MultiCascader.tsx b/app/components/ui/MultiCascader.tsx
new file mode 100644
index 0000000..9d57164
--- /dev/null
+++ b/app/components/ui/MultiCascader.tsx
@@ -0,0 +1,183 @@
+import React, { useState, useEffect, useRef } from 'react';
+
+type Option = {
+  value: string;
+  label: string;
+  children?: Option[];
+};
+
+type MultiCascaderProps = {
+  options: Option[];
+  defaultValue?: string[];
+  value?: string[];
+  onChange?: (value: string[]) => void;
+  placeholder?: string;
+};
+
+// 获取所有叶子节点的值
+const getAllLeafValues = (option: Option): string[] => {
+  if (!option.children || option.children.length === 0) {
+    return [option.value];
+  }
+  return option.children.flatMap(getAllLeafValues);
+};
+
+// 检查节点是否所有子节点都被选中
+const isAllChildrenChecked = (option: Option, selected: string[]): boolean => {
+  if (!option.children || option.children.length === 0) {
+    return selected.includes(option.value);
+  }
+  // 对于有子节点的节点，检查其所有叶子节点是否都被选中
+  const leafValues = getAllLeafValues(option);
+  return leafValues.every(value => selected.includes(value));
+};
+
+// 检查节点是否有部分子节点被选中
+const isSomeChildrenChecked = (option: Option, selected: string[]): boolean => {
+  if (!option.children || option.children.length === 0) {
+    return selected.includes(option.value);
+  }
+  // 对于有子节点的节点，检查其叶子节点是否有部分被选中
+  const leafValues = getAllLeafValues(option);
+  return leafValues.some(value => selected.includes(value));
+};
+
+const MultiCascader: React.FC<MultiCascaderProps> = ({ 
+  options, 
+  defaultValue = [], 
+  value,
+  onChange, 
+  placeholder = '请选择' 
+}) => {
+  const [visible, setVisible] = useState(false);
+  const [selected, setSelected] = useState<string[]>(value ?? defaultValue);
+  const [expandedKeys, setExpandedKeys] = useState<Set<string>>(new Set());
+  const containerRef = useRef<HTMLDivElement>(null);
+
+  // 当外部 value 变化时，同步内部状态
+  useEffect(() => {
+    if (value !== undefined) {
+      setSelected(value);
+    }
+  }, [value]);
+
+  useEffect(() => {
+    const handleClickOutside = (event: MouseEvent) => {
+      if (containerRef.current && !containerRef.current.contains(event.target as Node)) {
+        setVisible(false);
+      }
+    };
+    document.addEventListener('mousedown', handleClickOutside);
+    return () => document.removeEventListener('mousedown', handleClickOutside);
+  }, []);
+
+  const handleItemCheck = (option: Option, checked: boolean) => {
+    const leafValues = getAllLeafValues(option);
+    let newSelected: string[];
+    
+    if (checked) {
+      newSelected = Array.from(new Set([...selected, ...leafValues]));
+    } else {
+      newSelected = selected.filter(v => !leafValues.includes(v));
+    }
+    
+    setSelected(newSelected);
+    onChange?.(newSelected);
+  };
+
+  const getDisplayText = () => {
+    if (selected.length === 0) return placeholder;
+    return `已选择 ${selected.length} 项`;
+  };
+
+  const toggleExpand = (key: string) => {
+    setExpandedKeys(prev => {
+      const newSet = new Set(prev);
+      if (newSet.has(key)) {
+        newSet.delete(key);
+      } else {
+        newSet.add(key);
+      }
+      return newSet;
+    });
+  };
+
+  const renderOption = (option: Option, level: number = 0) => {
+    const allChecked = isAllChildrenChecked(option, selected);
+    const someChecked = isSomeChildrenChecked(option, selected);
+    const hasChildren = option.children && option.children.length > 0;
+    const isExpanded = expandedKeys.has(option.value);
+    
+    return (
+      <div key={option.value} className={level > 0 ? "pl-4" : ""}>
+        <div className="flex items-center py-1">
+          <input
+            type="checkbox"
+            className="form-checkbox h-4 w-4 text-[var(--color-primary,#00684a)] rounded border-gray-300 focus:ring-[var(--color-primary,#00684a)]"
+            checked={allChecked}
+            ref={el => { if (el) el.indeterminate = !allChecked && someChecked; }}
+            onChange={e => handleItemCheck(option, e.target.checked)}
+            id={`cascader-${option.value}`}
+          />
+          <label htmlFor={`cascader-${option.value}`} className="ml-2 text-sm flex-1">
+            {option.label}
+          </label>
+          {hasChildren && (
+            <button
+              type="button"
+              className="ml-2 text-gray-400 hover:text-gray-600"
+              onClick={(e) => {
+                e.stopPropagation();
+                toggleExpand(option.value);
+              }}
+            >
+              <i className={isExpanded ? "ri-arrow-down-s-line" : "ri-arrow-right-s-line"}></i>
+            </button>
+          )}
+        </div>
+        {hasChildren && isExpanded && (
+          <div className="ml-4 border-l border-gray-200 pl-2">
+            {option.children?.map(child => (
+              <React.Fragment key={child.value}>
+                {renderOption(child, level + 1)}
+              </React.Fragment>
+            ))}
+          </div>
+        )}
+      </div>
+    );
+  };
+
+  return (
+    <div ref={containerRef} className="relative inline-block w-full">
+      <div
+        className="border border-gray-300 rounded px-3 py-2 cursor-pointer bg-white flex justify-between items-center focus:outline-none focus:ring-2 focus:ring-[var(--color-primary,#00684a)] focus:border-[var(--color-primary,#00684a)]"
+        role="button"
+        tabIndex={0}
+        onKeyDown={(e) => {
+          if (e.key === 'Enter' || e.key === ' ') {
+            e.preventDefault();
+            setVisible(!visible);
+          }
+        }}
+        onClick={() => setVisible(!visible)}
+      >
+        <span className={selected.length === 0 ? 'text-gray-400' : ''}>
+          {getDisplayText()}
+        </span>
+        <span className="text-gray-400">
+          <i className={visible ? "ri-arrow-up-s-line" : "ri-arrow-down-s-line"}></i>
+        </span>
+      </div>
+      {visible && (
+        <div className="absolute z-10 bg-white border border-gray-300 rounded shadow-lg mt-1 w-full max-h-100 overflow-y-auto">
+          <div className="p-2">
+            {options.map(option => renderOption(option))}
+          </div>
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default MultiCascader;
\ No newline at end of file
diff --git a/app/routes/cross-checking._index.tsx b/app/routes/cross-checking._index.tsx
index daa84b6..374c3dd 100644
--- a/app/routes/cross-checking._index.tsx
+++ b/app/routes/cross-checking._index.tsx
@@ -458,7 +458,7 @@ export default function CrossCheckingIndex() {
             </div>
           </div>
         </div>
-        <Button type="primary" icon="ri-add-line" to="/cross-checking/new">
+        <Button type="primary" icon="ri-add-line" to="/cross-checking/upload">
           创建任务
         </Button>
       </div>
diff --git a/app/routes/cross-checking.upload.tsx b/app/routes/cross-checking.upload.tsx
index edbd255..ff7c69b 100644
--- a/app/routes/cross-checking.upload.tsx
+++ b/app/routes/cross-checking.upload.tsx
@@ -1,11 +1,13 @@
 import { useState, useRef } from "react";
 import { type MetaFunction, type ActionFunctionArgs } from "@remix-run/node";
-import { Form, useNavigation } from "@remix-run/react";
+import { Form, useNavigation, useNavigate } from "@remix-run/react";
 import { UploadArea, type UploadAreaRef } from "~/components/ui/UploadArea";
 import { Button } from "~/components/ui/Button";
 import { messageService } from "~/components/ui/MessageModal";
 import { toastService } from "~/components/ui/Toast";
 import crossCheckingUploadStyles from "~/styles/pages/cross-checking-upload.css?url";
+import MultiCascader from "~/components/ui/MultiCascader";    
+import { SingleDatePicker, links as dateRangePickerLinks } from "~/components/ui/DateRangePicker";
 import {
   CaseType,
   CASE_TYPE_TO_TYPE_ID,
@@ -14,6 +16,7 @@ import {
   formatFileSize,
   batchUploadCrossCheckingFiles
 } from "~/api/cross-checking/cross-files-upload";
+import React from "react"; // Added for React.useState
 
 export const meta: MetaFunction = () => {
     return [
@@ -28,7 +31,8 @@ export const handle = {
 
 export function links() {
     return [
-        { rel: "stylesheet", href: crossCheckingUploadStyles }
+        { rel: "stylesheet", href: crossCheckingUploadStyles },
+        ...dateRangePickerLinks()
     ];
 }
 
@@ -39,6 +43,378 @@ const STEPS = [
     { id: 3, label: "选择卷宗" }
 ];
 
+// 1. TreeNode类型和MOCK_TREE
+export interface TreeNode {
+  label: string;
+  value: string;
+  children?: TreeNode[];
+}
+
+// 无限层级组织架构数据结构
+const MOCK_TREE: TreeNode[] = [
+  {
+    label: "梅州市",
+    value: "梅州市",
+    children: [
+      {
+        label: "梅州市烟草局", // 市级局
+        value: "梅州市烟草局",
+        children: [
+          { label: "李局长", value: "梅州市-梅州市烟草局-李局长" },
+          { label: "王副局长", value: "梅州市-梅州市烟草局-王副局长" },
+          {
+            label: "市场监管科", // 市级局下的科室
+            value: "梅州市烟草局-市场监管科",
+            children: [
+              { label: "张科长", value: "梅州市-梅州市烟草局-市场监管科-张科长" },
+              { label: "陈主任", value: "梅州市-梅州市烟草局-市场监管科-陈主任" }
+            ]
+          },
+          {
+            label: "法规科",
+            value: "梅州市烟草局-法规科",
+            children: [
+              { label: "刘科长", value: "梅州市-梅州市烟草局-法规科-刘科长" },
+              { label: "周专员", value: "梅州市-梅州市烟草局-法规科-周专员" }
+            ]
+          }
+        ]
+      },
+      {
+        label: "梅江区", // 区级
+        value: "梅江区",
+        children: [
+          {
+            label: "梅江区烟草分局", // 区级分局
+            value: "梅江区烟草分局",
+            children: [
+              { label: "张分局长", value: "梅州市-梅江区-梅江区烟草分局-张分局长" },
+              { label: "李副分局长", value: "梅州市-梅江区-梅江区烟草分局-李副分局长" },
+              {
+                label: "执法大队", // 分局下的大队
+                value: "梅江区烟草分局-执法大队",
+                children: [
+                  { label: "王队长", value: "梅州市-梅江区-梅江区烟草分局-执法大队-王队长" },
+                  { label: "陈副队长", value: "梅州市-梅江区-梅江区烟草分局-执法大队-陈副队长" },
+                  {
+                    label: "第一中队", // 大队下的中队
+                    value: "梅江区烟草分局-执法大队-第一中队",
+                    children: [
+                      { label: "赵中队长", value: "梅州市-梅江区-梅江区烟草分局-执法大队-第一中队-赵中队长" },
+                      { label: "孙执法员", value: "梅州市-梅江区-梅江区烟草分局-执法大队-第一中队-孙执法员" },
+                      { label: "钱执法员", value: "梅州市-梅江区-梅江区烟草分局-执法大队-第一中队-钱执法员" }
+                    ]
+                  },
+                  {
+                    label: "第二中队",
+                    value: "梅江区烟草分局-执法大队-第二中队",
+                    children: [
+                      { label: "吴中队长", value: "梅州市-梅江区-梅江区烟草分局-执法大队-第二中队-吴中队长" },
+                      { label: "郑执法员", value: "梅州市-梅江区-梅江区烟草分局-执法大队-第二中队-郑执法员" }
+                    ]
+                  }
+                ]
+              },
+              {
+                label: "办公室",
+                value: "梅江区烟草分局-办公室",
+                children: [
+                  { label: "林主任", value: "梅州市-梅江区-梅江区烟草分局-办公室-林主任" },
+                  { label: "黄秘书", value: "梅州市-梅江区-梅江区烟草分局-办公室-黄秘书" }
+                ]
+              }
+            ]
+          },
+          {
+            label: "梅江区市场监管局",
+            value: "梅江区市场监管局",
+            children: [
+              { label: "刘局长", value: "梅州市-梅江区-梅江区市场监管局-刘局长" },
+              { label: "周副局长", value: "梅州市-梅江区-梅江区市场监管局-周副局长" },
+              {
+                label: "执法监察科",
+                value: "梅江区市场监管局-执法监察科",
+                children: [
+                  { label: "谢科长", value: "梅州市-梅江区-梅江区市场监管局-执法监察科-谢科长" },
+                  { label: "何专员", value: "梅州市-梅江区-梅江区市场监管局-执法监察科-何专员" }
+                ]
+              }
+            ]
+          }
+        ]
+      },
+      {
+        label: "梅县区", // 另一个区
+        value: "梅县区",
+        children: [
+          {
+            label: "梅县区烟草分局",
+            value: "梅县区烟草分局",
+            children: [
+              { label: "黄分局长", value: "梅州市-梅县区-梅县区烟草分局-黄分局长" },
+              { label: "林副分局长", value: "梅州市-梅县区-梅县区烟草分局-林副分局长" },
+              {
+                label: "稽查队",
+                value: "梅县区烟草分局-稽查队",
+                children: [
+                  { label: "吴队长", value: "梅州市-梅县区-梅县区烟草分局-稽查队-吴队长" },
+                  { label: "郑稽查员", value: "梅州市-梅县区-梅县区烟草分局-稽查队-郑稽查员" },
+                  { label: "谢稽查员", value: "梅州市-梅县区-梅县区烟草分局-稽查队-谢稽查员" }
+                ]
+              }
+            ]
+          }
+        ]
+      },
+      {
+        label: "丰顺县", // 县级
+        value: "丰顺县",
+        children: [
+          {
+            label: "丰顺县烟草分局",
+            value: "丰顺县烟草分局",
+            children: [
+              { label: "曾分局长", value: "梅州市-丰顺县-丰顺县烟草分局-曾分局长" },
+              {
+                label: "专卖管理所",
+                value: "丰顺县烟草分局-专卖管理所",
+                children: [
+                  { label: "邓所长", value: "梅州市-丰顺县-丰顺县烟草分局-专卖管理所-邓所长" },
+                  { label: "罗管理员", value: "梅州市-丰顺县-丰顺县烟草分局-专卖管理所-罗管理员" }
+                ]
+              }
+            ]
+          }
+        ]
+      }
+    ]
+  },
+  {
+    label: "揭阳市",
+    value: "揭阳市",
+    children: [
+      {
+        label: "揭阳市烟草局", // 市级局
+        value: "揭阳市烟草局",
+        children: [
+          { label: "苏局长", value: "揭阳市-揭阳市烟草局-苏局长" },
+          { label: "叶副局长", value: "揭阳市-揭阳市烟草局-叶副局长" },
+          {
+            label: "专卖监督管理处",
+            value: "揭阳市烟草局-专卖监督管理处",
+            children: [
+              { label: "潘处长", value: "揭阳市-揭阳市烟草局-专卖监督管理处-潘处长" },
+              { label: "方副处长", value: "揭阳市-揭阳市烟草局-专卖监督管理处-方副处长" }
+            ]
+          }
+        ]
+      },
+      {
+        label: "榕城区",
+        value: "榕城区",
+        children: [
+          {
+            label: "榕城区烟草分局",
+            value: "榕城区烟草分局",
+            children: [
+              { label: "王分局长", value: "揭阳市-榕城区-榕城区烟草分局-王分局长" },
+              { label: "李明华", value: "揭阳市-榕城区-榕城区烟草分局-李明华" },
+              { label: "张丽萍", value: "揭阳市-榕城区-榕城区烟草分局-张丽萍" },
+              {
+                label: "市场检查组",
+                value: "榕城区烟草分局-市场检查组",
+                children: [
+                  { label: "陈组长", value: "揭阳市-榕城区-榕城区烟草分局-市场检查组-陈组长" },
+                  { label: "林检查员", value: "揭阳市-榕城区-榕城区烟草分局-市场检查组-林检查员" }
+                ]
+              }
+            ]
+          },
+          {
+            label: "榕城区质监局",
+            value: "榕城区质监局",
+            children: [
+              { label: "陈国强", value: "揭阳市-榕城区-榕城区质监局-陈国强" },
+              { label: "林小芳", value: "揭阳市-榕城区-榕城区质监局-林小芳" }
+            ]
+          }
+        ]
+      },
+      {
+        label: "揭东区",
+        value: "揭东区",
+        children: [
+          {
+            label: "揭东区烟草分局",
+            value: "揭东区烟草分局",
+            children: [
+              { label: "黄建军", value: "揭阳市-揭东区-揭东区烟草分局-黄建军" },
+              { label: "吴秀英", value: "揭阳市-揭东区-揭东区烟草分局-吴秀英" },
+              { label: "刘志华", value: "揭阳市-揭东区-揭东区烟草分局-刘志华" }
+            ]
+          }
+        ]
+      },
+      {
+        label: "惠来县", // 县级
+        value: "惠来县",
+        children: [
+          {
+            label: "惠来县烟草分局",
+            value: "惠来县烟草分局",
+            children: [
+              { label: "杨分局长", value: "揭阳市-惠来县-惠来县烟草分局-杨分局长" },
+              {
+                label: "案件审理室",
+                value: "惠来县烟草分局-案件审理室",
+                children: [
+                  { label: "蔡主任", value: "揭阳市-惠来县-惠来县烟草分局-案件审理室-蔡主任" },
+                  { label: "郭审理员", value: "揭阳市-惠来县-惠来县烟草分局-案件审理室-郭审理员" }
+                ]
+              }
+            ]
+          }
+        ]
+      }
+    ]
+  },
+  {
+    label: "汕头市",
+    value: "汕头市",
+    children: [
+      {
+        label: "汕头市烟草局", // 市级局
+        value: "汕头市烟草局",
+        children: [
+          { label: "何局长", value: "汕头市-汕头市烟草局-何局长" },
+          { label: "许副局长", value: "汕头市-汕头市烟草局-许副局长" }
+        ]
+      },
+      {
+        label: "龙湖区",
+        value: "龙湖区",
+        children: [
+          {
+            label: "龙湖区烟草分局",
+            value: "龙湖区烟草分局",
+            children: [
+              { label: "许志明", value: "汕头市-龙湖区-龙湖区烟草分局-许志明" },
+              { label: "蔡丽娜", value: "汕头市-龙湖区-龙湖区烟草分局-蔡丽娜" },
+              { label: "郭建华", value: "汕头市-龙湖区-龙湖区烟草分局-郭建华" },
+              { label: "何美霞", value: "汕头市-龙湖区-龙湖区烟草分局-何美霞" }
+            ]
+          },
+          {
+            label: "龙湖区工商局",
+            value: "龙湖区工商局",
+            children: [
+              { label: "方国庆", value: "汕头市-龙湖区-龙湖区工商局-方国庆" },
+              { label: "杨小红", value: "汕头市-龙湖区-龙湖区工商局-杨小红" }
+            ]
+          }
+        ]
+      },
+      {
+        label: "金平区",
+        value: "金平区",
+        children: [
+          {
+            label: "金平区烟草分局",
+            value: "金平区烟草分局",
+            children: [
+              { label: "邓志强", value: "汕头市-金平区-金平区烟草分局-邓志强" },
+              { label: "罗美玲", value: "汕头市-金平区-金平区烟草分局-罗美玲" }
+            ]
+          },
+          {
+            label: "金平区市场监管局",
+            value: "金平区市场监管局",
+            children: [
+              { label: "苏建国", value: "汕头市-金平区-金平区市场监管局-苏建国" },
+              { label: "叶丽华", value: "汕头市-金平区-金平区市场监管局-叶丽华" },
+              { label: "潘志明", value: "汕头市-金平区-金平区市场监管局-潘志明" }
+            ]
+          }
+        ]
+      },
+      {
+        label: "南澳县", // 县级
+        value: "南澳县",
+        children: [
+          {
+            label: "南澳县烟草分局",
+            value: "南澳县烟草分局",
+            children: [
+              { label: "陈分局长", value: "汕头市-南澳县-南澳县烟草分局-陈分局长" },
+              { label: "林管理员", value: "汕头市-南澳县-南澳县烟草分局-林管理员" }
+            ]
+          }
+        ]
+      }
+    ]
+  }
+];
+
+
+function isAllChildrenChecked(node: TreeNode, checked: string[]): boolean {
+  if (!node.children || node.children.length === 0) return checked.includes(node.value);
+  return node.children.every(child => isAllChildrenChecked(child, checked));
+}
+function isSomeChildrenChecked(node: TreeNode, checked: string[]): boolean {
+  if (!node.children || node.children.length === 0) return checked.includes(node.value);
+  return node.children.some(child => isSomeChildrenChecked(child, checked));
+}
+const TreeNodeCheckbox: React.FC<{
+  node: TreeNode;
+  checked: string[];
+  onCheck: (node: TreeNode, checked: boolean) => void;
+  level?: number;
+}> = ({ node, checked, onCheck, level = 0 }) => {
+  const [expanded, setExpanded] = React.useState(true);
+  const allChecked = isAllChildrenChecked(node, checked);
+  const someChecked = isSomeChildrenChecked(node, checked);
+  const isLeaf = !node.children || node.children.length === 0;
+  return (
+    <div style={{ marginLeft: level * 18 }}>
+      <div className="flex items-center">
+        {!isLeaf && (
+          <span
+            className="mr-1 cursor-pointer select-none"
+            onClick={() => setExpanded(e => !e)}
+            role="button"
+            tabIndex={0}
+            onKeyDown={e => (e.key === 'Enter' || e.key === ' ') && setExpanded(e => !e)}
+            style={{ width: 16, display: "inline-block", textAlign: "center" }}
+          >
+            <i className={expanded ? "ri-arrow-down-s-line" : "ri-arrow-right-s-line"}></i>
+          </span>
+        )}
+        <input
+          type="checkbox"
+          className="form-checkbox"
+          checked={allChecked}
+          ref={el => { if (el) el.indeterminate = !allChecked && someChecked; }}
+          onChange={e => onCheck(node, e.target.checked)}
+          id={node.value}
+        />
+        <label htmlFor={node.value} className="ml-2">{node.label}</label>
+      </div>
+      {expanded && node.children && (
+        <div>
+          {node.children.map(child => (
+            <TreeNodeCheckbox
+              key={child.value}
+              node={child}
+              checked={checked}
+              onCheck={onCheck}
+              level={level + 1}
+            />
+          ))}
+        </div>
+      )}
+    </div>
+  );
+};
 export const action = async ({ request }: ActionFunctionArgs) => {
     const formData = await request.formData();
     const caseType = formData.get("caseType") as string;
@@ -54,8 +430,16 @@ export const action = async ({ request }: ActionFunctionArgs) => {
 export default function CrossCheckingUpload() {
     // 基础状态
     const [caseType, setCaseType] = useState<CaseType>(CaseType.ADMINISTRATIVE_PENALTY);
-    const [currentStep] = useState(1);
-    const navigation = useNavigation();
+    // 步骤状态
+    const [currentStep, setCurrentStep] = useState(1);
+    // 步骤1：任务信息
+    const [taskInfo, setTaskInfo] = useState({
+        name: '',
+        date: '',
+        type: '市局交叉评查',
+    });
+    // 步骤2状态
+    const [groupChecked, setGroupChecked] = useState<string[]>([]);
 
     // 上传配置状态 - 设置默认值
     const [priority] = useState<string>("normal");
@@ -260,13 +644,11 @@ export default function CrossCheckingUpload() {
             if (failures.length === 0) {
                 // 全部成功
                 toastService.success(`成功上传 ${successes.length} 个文件`);
+                // 立即清空文件列表
+                clearAllFiles();
                 messageService.success(`文件上传完成！成功上传 ${successes.length} 个文件，现在可以进行下一步操作。`, {
                     title: '上传成功',
-                    confirmText: '确定',
-                    onConfirm: () => {
-                        // 清空文件列表
-                        clearAllFiles();
-                    }
+                    confirmText: '确定'
                 });
             } else if (successes.length === 0) {
                 // 全部失败
@@ -299,221 +681,352 @@ export default function CrossCheckingUpload() {
         }
     };
 
+    // 步骤切换
+    const handleNext = () => setCurrentStep((s) => Math.min(s + 1, 3));
+    const handlePrev = () => setCurrentStep((s) => Math.max(s - 1, 1));
+
+    // 步骤1表单校验
+    const canNextStep1 = taskInfo.name.trim() && taskInfo.date.trim() && taskInfo.type.trim();
+    // 小组多选逻辑 - 默认不选择任何项
+
     // 检查是否可以完成
     const canComplete = (singleFiles.length > 0 || multipleFiles.length > 0) && !isUploading;
+    const navigation = useNavigation();
     const isSubmitting = navigation.state === "submitting";
 
+    const navigate = useNavigate();
+
     return (
         <div className="min-h-screen bg-gray-50 py-8">
             <div className="max-w-6xl mx-auto px-4">
-                {/* 步骤指示器 */}
+                {/* 步骤指示器 */
                 <div className="steps-indicator">
                     {STEPS.map((step) => (
-                        <div 
-                            key={step.id} 
+                        <div
+                            key={step.id}
                             className={`step-item ${step.id < currentStep ? 'completed' : ''}`}
                         >
-                            <div className={`step-circle ${step.id <= currentStep ? 'active' : 'inactive'}`}>
-                                {step.id}
-                            </div>
+                            <div className={`step-circle ${step.id === currentStep ? 'active' : 'inactive'}`}>{step.id}</div>
                             <div className="step-label">{step.label}</div>
                         </div>
                     ))}
                 </div>
+            }
 
-                {/* 案卷类型选择器 */}
-                <div className="case-type-selector">
-                    <div className="case-type-options">
-                        <button
-                            type="button"
-                            className={`case-type-option ${caseType === CaseType.ADMINISTRATIVE_PENALTY ? 'active' : 'inactive'}`}
-                            onClick={() => handleCaseTypeChange(CaseType.ADMINISTRATIVE_PENALTY)}
-                            disabled={isUploading}
-                        >
-                            行政处罚
-                        </button>
-                        <button
-                            type="button"
-                            className={`case-type-option ${caseType === CaseType.ADMINISTRATIVE_PERMIT ? 'active' : 'inactive'}`}
-                            onClick={() => handleCaseTypeChange(CaseType.ADMINISTRATIVE_PERMIT)}
-                            disabled={isUploading}
-                        >
-                            行政许可
-                        </button>
-                    </div>
-                </div>
-
-                {/* 文件上传区域 */}
-                <Form method="post" encType="multipart/form-data">
-                    <input type="hidden" name="caseType" value={caseType} />
-                    <input type="hidden" name="uploadType" value={uploadType} />
-                    
-                    <div className="upload-section">
-                        {/* 单案件导入 */}
-                        <div className="upload-item">
-                            <div className="upload-item-header">
-                                <i className="upload-item-icon ri-file-text-line"></i>
-                                <span>单案件导入</span>
-                                {uploadType === 'single' && singleFiles.length > 0 && (
-                                    <Button
-                                        type="default"
-                                        size="small"
-                                        icon="ri-delete-bin-line"
-                                        onClick={() => handleClearFiles('single')}
-                                        disabled={isUploading}
-                                    >
-                                        清空
-                                    </Button>
-                                )}
+            {/* 步骤1：创建任务 */}
+                {currentStep === 1 && (
+                    <div className="flex justify-center">
+                        <div className="bg-white rounded-lg shadow-sm border border-gray-200 p-6" style={{width: '1000px'}}>
+                            <div className="form-group">
+                                <label htmlFor="task-name">任务名称<span className="text-red-500">*</span></label>
+                                <input
+                                    id="task-name"
+                                    className="form-input"
+                                    value={taskInfo.name}
+                                    onChange={e => setTaskInfo({ ...taskInfo, name: e.target.value })}
+                                    placeholder="请输入任务名称"
+                                />
                             </div>
-                            <UploadArea
-                                ref={singleUploadRef}
-                                onFilesSelected={handleSingleFilesSelected}
-                                className="custom-upload-area"
-                                accept=".pdf"
-                                multiple={true}
-                                icon="ri-file-upload-line"
-                                buttonText="选择文件"
-                                mainText="点击或拖拽文件到此区域上传"
-                                tipText={
-                                    <div className="upload-tip-error">
-                                        请上传案件相关PDF文件
-                                    </div>
-                                }
-                                disabled={uploadType === 'multiple' || isUploading}
-                            />
-                            
-                            {/* 单案件文件列表 */}
-                            {singleFiles.length > 0 && (
-                                <div className="mt-4 space-y-2">
-                                    <div className="text-sm font-medium text-gray-700">
-                                        已选择 {singleFiles.length} 个文件:
-                                    </div>
-                                    <div className="max-h-32 overflow-y-auto space-y-1">
-                                        {singleFiles.map((file) => (
-                                            <div key={file.id} className="flex items-center justify-between bg-gray-50 p-2 rounded">
-                                                <div className="flex items-center space-x-2 flex-1 min-w-0">
-                                                    <i className="ri-file-pdf-line text-red-500"></i>
-                                                    <span className="text-sm truncate">{file.name}</span>
-                                                    <span className="text-xs text-gray-500">{formatFileSize(file.size)}</span>
-                                                </div>
-                                                <button
-                                                    type="button"
-                                                    onClick={() => handleRemoveFile(file.id, 'single')}
-                                                    className="text-red-500 hover:text-red-700 p-1"
-                                                    disabled={isUploading}
-                                                >
-                                                    <i className="ri-close-line"></i>
-                                                </button>
-                                            </div>
-                                        ))}
-                                    </div>
-                                </div>
-                            )}
-                        </div>
-
-                        {/* 多案件导入 */}
-                        <div className="upload-item">
-                            <div className="upload-item-header">
-                                <i className="upload-item-icon ri-file-list-line"></i>
-                                <span>多案件导入</span>
-                                {uploadType === 'multiple' && multipleFiles.length > 0 && (
-                                    <Button
-                                        type="default"
-                                        size="small"
-                                        icon="ri-delete-bin-line"
-                                        onClick={() => handleClearFiles('multiple')}
-                                        disabled={isUploading}
-                                    >
-                                        清空
-                                    </Button>
-                                )}
+                            <div className="form-group">
+                                <label htmlFor="task-date" className="form-label required">评查时间</label>
+                                <SingleDatePicker
+                                    date={taskInfo.date}
+                                    onDateChange={(value) => setTaskInfo({ ...taskInfo, date: value })}
+                                    className="w-full"
+                                    id="task-date"
+                                    placeholder="请选择日期"
+                                />
+                            </div>
+                            <div className="form-group">
+                                <label htmlFor="task-type">任务类型</label>
+                                <input
+                                    id="task-type"
+                                    className="form-input"
+                                    value={taskInfo.type}
+                                    onChange={e => setTaskInfo({ ...taskInfo, type: e.target.value })}
+                                    placeholder="请输入任务类型"
+                                />
+                            </div>
+                            <div className="flex justify-between items-center mt-6">
+                                <Button 
+                                    type="default" 
+                                    icon="ri-arrow-left-line"
+                                    onClick={() => navigate('/cross-checking')}
+                                >
+                                    返回列表
+                                </Button>
+                                <Button type="primary" disabled={!canNextStep1} onClick={handleNext}>下一步</Button>
                             </div>
-                            <UploadArea
-                                ref={multipleUploadRef}
-                                onFilesSelected={handleMultipleFilesSelected}
-                                className="custom-upload-area"
-                                accept=".zip,.rar,.7z,.tar"
-                                multiple={false}
-                                icon="ri-folder-zip-line"
-                                buttonText="选择文件"
-                                mainText="点击或拖拽文件到此区域上传"
-                                tipText={
-                                    <div className="upload-tip-error">
-                                        请上传多个案件作为压缩包zip、rar、7z、tar文件
-                                    </div>
-                                }
-                                disabled={uploadType === 'single' || isUploading}
-                            />
-
-                            {/* 多案件文件列表 */}
-                            {multipleFiles.length > 0 && (
-                                <div className="mt-4 space-y-2">
-                                    <div className="text-sm font-medium text-gray-700">
-                                        已选择 {multipleFiles.length} 个压缩包:
-                                    </div>
-                                    <div className="max-h-32 overflow-y-auto space-y-1">
-                                        {multipleFiles.map((file) => (
-                                            <div key={file.id} className="flex items-center justify-between bg-gray-50 p-2 rounded">
-                                                <div className="flex items-center space-x-2 flex-1 min-w-0">
-                                                    <i className="ri-folder-zip-line text-orange-500"></i>
-                                                    <span className="text-sm truncate">{file.name}</span>
-                                                    <span className="text-xs text-gray-500">{formatFileSize(file.size)}</span>
-                                                </div>
-                                                <button
-                                                    type="button"
-                                                    onClick={() => handleRemoveFile(file.id, 'multiple')}
-                                                    className="text-red-500 hover:text-red-700 p-1"
-                                                    disabled={isUploading}
-                                                >
-                                                    <i className="ri-close-line"></i>
-                                                </button>
-                                            </div>
-                                        ))}
-                                    </div>
-                                </div>
-                            )}
                         </div>
                     </div>
-
-                    {/* 完成按钮 */}
-                    <div className="complete-button-container">
-                        <button
-                            type="button"
-                            className="complete-button"
-                            disabled={!canComplete}
-                            onClick={handleCompleteUpload}
-                        >
-                            {isUploading || isSubmitting ? (
-                                <>
-                                    <i className="ri-loader-4-line animate-spin mr-2"></i>
-                                    上传中...
-                                </>
-                            ) : (
-                                "完成"
-                            )}
-                        </button>
-                    </div>
-                </Form>
-
-                {/* 文件选择状态提示 */}
-                {!canComplete && !isUploading && (
-                    <div className="text-center mt-4 text-gray-500 text-sm">
-                        请至少选择一种导入方式的文件
-                    </div>
                 )}
 
-                {/* 上传进度提示 */}
-                {isUploading && (
-                    <div className="text-center mt-4">
-                        <div className="bg-blue-50 p-4 rounded-md border border-blue-100">
-                            <div className="flex items-center justify-center text-blue-800 mb-2">
-                                <i className="ri-loader-4-line animate-spin text-xl mr-2"></i>
-                                <span className="font-medium">正在上传文件...</span>
+                {/* 步骤2：创建评查小组 */}
+                {currentStep === 2 && (
+                    <>
+                        <div className="flex justify-center">
+                            <div className="bg-white rounded-lg shadow-sm border border-gray-200 p-6" style={{width: '1000px'}}>
+                                <div className="flex flex-row justify-center gap-12">
+                                    {/* 左侧树状多选 */}
+                                    <div style={{ minWidth: 300, width: '40%' }}>
+                                        <div className="form-group">
+                                            <label htmlFor="review-group" className="form-label required">评查小组</label>
+                                            <MultiCascader
+                                                options={MOCK_TREE}
+                                                placeholder="请选择评查小组"
+                                                value={groupChecked}
+                                                onChange={(values: string[]) => {
+                                                    setGroupChecked(values);
+                                                }}
+                                            />
+                                        </div>
+                                    </div>
+                                    {/* 右侧已选择成员显示区域 */}
+                                    <div style={{ minWidth: 400, width: '50%', minHeight: 250, background: '#f9fafb', border: '1.5px solid #e5e7eb', borderRadius: 8, marginTop: '23px' }}>
+                                        <div className="p-4">
+                                            <h4 className="text-sm font-medium text-gray-700 mb-3">已选择的评查小组成员</h4>
+                                            {groupChecked.length > 0 ? (
+                                                <div className="space-y-2 max-h-64 overflow-y-auto">
+                                                    {groupChecked.map((member, index) => {
+                                                        const parts = member.split('-');
+                                                        const name = parts[parts.length - 1];
+                                                        const org = parts.slice(0, -1).join(' - ');
+                                                        return (
+                                                            <div key={index} className="bg-white p-2 rounded text-xs border">
+                                                                <div className="font-medium text-gray-800">{name}</div>
+                                                                <div className="text-gray-500 mt-1">{org}</div>
+                                                            </div>
+                                                        );
+                                                    })}
+                                                </div>
+                                            ) : (
+                                                <div className="text-gray-400 text-sm text-center mt-8">
+                                                    <i className="ri-user-line text-2xl mb-2 block"></i>
+                                                    暂未选择评查小组成员
+                                                </div>
+                                            )}
+                                            <div className="mt-4 pt-3 border-t border-gray-200">
+                                                <div className="text-xs text-gray-500">
+                                                    共选择 {groupChecked.length} 名成员
+                                                </div>
+                                            </div>
+                                        </div>
+                                    </div>
+                                </div>
+                                
+                                {/* 按钮区域移到卡片内部 */}
+                                <div className="flex justify-between items-center mt-6">
+                                    <Button 
+                                        type="default" 
+                                        icon="ri-arrow-left-line"
+                                        onClick={() => navigate('/cross-checking')}
+                                    >
+                                        返回列表
+                                    </Button>
+                                    <div className="flex space-x-4">
+                                        <Button type="default" onClick={handlePrev}>上一步</Button>
+                                        <Button type="primary" disabled={groupChecked.length === 0} onClick={handleNext}>下一步</Button>
+                                    </div>
+                                </div>
                             </div>
-                            <p className="text-sm text-blue-700">
-                                正在上传 {uploadType === 'single' ? singleFiles.length : multipleFiles.length} 个文件，请稍候
-                            </p>
+                        </div>
+                    </>
+                )}
+
+                {/* 步骤3：原有上传区域 */}
+                {currentStep === 3 && (
+                    <div className="flex justify-center">
+                        <div className="bg-white rounded-lg shadow-sm border border-gray-200 p-6" style={{width: '1000px'}}>
+                            {/* 案卷类型选择器 */}
+                            <div className="flex justify-center mb-6">
+                                <div>
+                                    <div className="text-sm font-medium text-gray-700 mb-3 text-center">选择案卷类型</div>
+                                    <div className="case-type-options">
+                                        <button
+                                            type="button"
+                                            className={`case-type-option ${caseType === CaseType.ADMINISTRATIVE_PENALTY ? 'active' : 'inactive'}`}
+                                            onClick={() => handleCaseTypeChange(CaseType.ADMINISTRATIVE_PENALTY)}
+                                            disabled={isUploading}
+                                        >
+                                            行政处罚
+                                        </button>
+                                        <button
+                                            type="button"
+                                            className={`case-type-option ${caseType === CaseType.ADMINISTRATIVE_PERMIT ? 'active' : 'inactive'}`}
+                                            onClick={() => handleCaseTypeChange(CaseType.ADMINISTRATIVE_PERMIT)}
+                                            disabled={isUploading}
+                                        >
+                                            行政许可
+                                        </button>
+                                    </div>
+                                </div>
+                            </div>
+                            
+                            {/* 文件上传区域 */}
+                            <Form method="post" encType="multipart/form-data">
+                            <input type="hidden" name="caseType" value={caseType} />
+                            <input type="hidden" name="uploadType" value={uploadType} />
+                            
+                            {/* 上传框区域 */}
+                            <div className="upload-section">
+                                {/* 单案件导入 */}
+                                <div className="upload-item">
+                                    <div className="upload-item-header">
+                                        <i className="upload-item-icon ri-file-text-line"></i>
+                                        <span>单案件导入</span>
+                                    </div>
+                                    <UploadArea
+                                        ref={singleUploadRef}
+                                        onFilesSelected={handleSingleFilesSelected}
+                                        className="custom-upload-area"
+                                        accept=".pdf"
+                                        multiple={true}
+                                        icon="ri-file-upload-line"
+                                        buttonText="选择文件"
+                                        mainText="点击或拖拽文件到此区域上传"
+                                        tipText={
+                                            <div className="upload-tip-error">
+                                                请上传案件相关PDF文件
+                                            </div>
+                                        }
+                                        disabled={uploadType === 'multiple' || isUploading}
+                                    />
+                                </div>
+
+                                {/* 多案件导入 */}
+                                <div className="upload-item">
+                                    <div className="upload-item-header">
+                                        <i className="upload-item-icon ri-file-list-line"></i>
+                                        <span>多案件导入</span>
+                                    </div>
+                                    <UploadArea
+                                        ref={multipleUploadRef}
+                                        onFilesSelected={handleMultipleFilesSelected}
+                                        className="custom-upload-area"
+                                        accept=".zip,.rar,.7z,.tar"
+                                        multiple={false}
+                                        icon="ri-folder-zip-line"
+                                        buttonText="选择文件"
+                                        mainText="点击或拖拽文件到此区域上传"
+                                        tipText={
+                                            <div className="upload-tip-error">
+                                                请上传多个案件作为压缩包zip、rar、7z、tar文件
+                                            </div>
+                                        }
+                                        disabled={uploadType === 'single' || isUploading}
+                                    />
+                                </div>
+                            </div>
+
+                            {/* 文件预览区域 */}
+                            {(singleFiles.length > 0 || multipleFiles.length > 0) && (
+                                <div className="mt-6 bg-green-50 border border-green-200 rounded-lg p-4">
+                                    <div className="flex items-center justify-between mb-3">
+                                        <div className="text-sm font-medium text-gray-700">
+                                            已选择 {uploadType === 'single' ? singleFiles.length : multipleFiles.length} 个文件
+                                        </div>
+                                        <Button
+                                            type="default"
+                                            size="small"
+                                            icon="ri-delete-bin-line"
+                                            onClick={() => handleClearFiles(uploadType === 'single' ? 'single' : 'multiple')}
+                                            disabled={isUploading}
+                                        >
+                                            清空
+                                        </Button>
+                                    </div>
+                                    
+                                    {/* 单案件文件列表 */}
+                                    {uploadType === 'single' && singleFiles.length > 0 && (
+                                        <div className="max-h-32 overflow-y-auto space-y-1">
+                                            {singleFiles.map((file) => (
+                                                <div key={file.id} className="flex items-center justify-between bg-white p-2 rounded border">
+                                                    <div className="flex items-center space-x-2 flex-1 min-w-0">
+                                                        <i className="ri-file-pdf-line text-red-500"></i>
+                                                        <span className="text-sm truncate">{file.name}</span>
+                                                        <span className="text-xs text-gray-500">{formatFileSize(file.size)}</span>
+                                                    </div>
+                                                    <button
+                                                        type="button"
+                                                        onClick={() => handleRemoveFile(file.id, 'single')}
+                                                        className="text-red-500 hover:text-red-700 p-1"
+                                                        disabled={isUploading}
+                                                    >
+                                                        <i className="ri-close-line"></i>
+                                                    </button>
+                                                </div>
+                                            ))}
+                                        </div>
+                                    )}
+
+                                    {/* 多案件文件列表 */}
+                                    {uploadType === 'multiple' && multipleFiles.length > 0 && (
+                                        <div className="max-h-32 overflow-y-auto space-y-1">
+                                            {multipleFiles.map((file) => (
+                                                <div key={file.id} className="flex items-center justify-between bg-white p-2 rounded border">
+                                                    <div className="flex items-center space-x-2 flex-1 min-w-0">
+                                                        <i className="ri-folder-zip-line text-orange-500"></i>
+                                                        <span className="text-sm truncate">{file.name}</span>
+                                                        <span className="text-xs text-gray-500">{formatFileSize(file.size)}</span>
+                                                    </div>
+                                                    <button
+                                                        type="button"
+                                                        onClick={() => handleRemoveFile(file.id, 'multiple')}
+                                                        className="text-red-500 hover:text-red-700 p-1"
+                                                        disabled={isUploading}
+                                                    >
+                                                        <i className="ri-close-line"></i>
+                                                    </button>
+                                                </div>
+                                            ))}
+                                        </div>
+                                    )}
+                                </div>
+                            )}
+
+                                {/* 完成按钮 */}
+                                <div className="flex justify-between items-center mt-8">
+                                    <Button 
+                                        type="default" 
+                                        icon="ri-arrow-left-line"
+                                        onClick={() => navigate('/cross-checking')}
+                                    >
+                                        返回列表
+                                    </Button>
+                                    <div className="flex space-x-4">
+                                        <Button type="default" onClick={handlePrev}>上一步</Button>
+                                        <Button
+                                            type="primary"
+                                            disabled={!canComplete || isUploading}
+                                            onClick={handleCompleteUpload}
+                                        >
+                                            {isUploading || isSubmitting ? "上传中..." : "开始创建任务"}
+                                        </Button>
+                                    </div>
+                                </div>
+                            </Form>
+
+                            {/* 文件选择状态提示 */}
+                            {!canComplete && !isUploading && (
+                                <div className="text-center mt-4 text-gray-500 text-sm">
+                                    请至少选择一种导入方式的文件
+                                </div>
+                            )}
+
+                            {/* 上传进度提示 */}
+                            {isUploading && (
+                                <div className="text-center mt-4">
+                                    <div className="bg-blue-50 p-4 rounded-md border border-blue-100">
+                                        <div className="flex items-center justify-center text-blue-800 mb-2">
+                                            <i className="ri-loader-4-line ri-spin  animate-spin text-xl mr-2"></i>
+                                            <span className="font-medium">正在上传文件...</span>
+                                        </div>
+                                        <p className="text-sm text-blue-700">
+                                            正在上传 {uploadType === 'single' ? singleFiles.length : multipleFiles.length} 个文件，请稍候
+                                        </p>
+                                    </div>
+                                </div>
+                            )}
                         </div>
                     </div>
                 )}
diff --git a/app/styles/main.css b/app/styles/main.css
index 0c7c161..2d91c53 100644
--- a/app/styles/main.css
+++ b/app/styles/main.css
@@ -45,7 +45,7 @@
     --color-primary: #00684a;
     --color-primary-hover: #005a3f;
     --color-primary-light: rgba(0, 104, 74, 0.1);
-    
+
     /* 成功、警告、错误颜色 */
     --color-success: #52c41a;
     --color-warning: #faad14;
@@ -296,4 +296,4 @@ i[class^="ri-"],
 i[class*=" ri-"] {
   font-family: 'remixicon' !important;
   font-style: normal !important;
-} 
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/app/styles/pages/cross-checking-upload.css b/app/styles/pages/cross-checking-upload.css
index 1e06371..d257f91 100644
--- a/app/styles/pages/cross-checking-upload.css
+++ b/app/styles/pages/cross-checking-upload.css
@@ -25,8 +25,8 @@
   content: '';
   position: absolute;
   top: 25px;
-  left: 75px;
-  width: calc(100% - 50px);
+  left: 135px;
+  width: calc(100% - 70px);
   height: 2px;
   background-color: #e5e7eb;
   z-index: 1;
@@ -272,4 +272,72 @@
     left: 60px;
     width: calc(100% - 20px);
   }
-} 
\ No newline at end of file
+} 
+
+.form-input[type="date"]::-webkit-calendar-picker-indicator {
+  opacity: 0;
+  width: 0;
+  height: 0;
+}
+.form-input[type="date"] {
+  position: relative;
+  z-index: 1;
+} 
+
+.group-multiselect {
+  width: 100%;
+  max-width: 350px;
+  background: #fff;
+  border-radius: 8px;
+  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
+  padding: 0.5rem 1.5rem 1rem 1.5rem;
+  margin-top: 0.5rem;
+}
+.group-select-header {
+  display: flex;
+  align-items: center;
+  font-size: 1rem;
+  font-weight: 500;
+  margin-bottom: 0.5rem;
+  cursor: pointer;
+  user-select: none;
+}
+.group-select-list {
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+.group-select-item {
+  display: flex;
+  align-items: center;
+  font-size: 1rem;
+  margin-left: 0.5rem;
+  user-select: none;
+}
+.group-select-item input[type="checkbox"] {
+  width: 20px;
+  height: 20px;
+  accent-color: #059669;
+  border-radius: 4px;
+  margin-right: 0.5rem;
+  border: 1.5px solid #d1d5db;
+  transition: border 0.2s;
+}
+.group-select-item input[type="checkbox"]:hover {
+  border: 1.5px solid #059669;
+}
+.group-select-item label {
+  font-size: 1rem;
+  color: #374151;
+  cursor: pointer;
+  margin-bottom: 0;
+}
+@media (max-width: 600px) {
+  .group-multiselect {
+    max-width: 100%;
+    padding: 0.5rem 0.5rem 1rem 0.5rem;
+  }
+  .group-select-item label {
+    font-size: 0.95rem;
+  }
+}
\ No newline at end of file