diff --git a/JWLLL/API_front/src/components/Header.jsx b/JWLLL/API_front/src/components/Header.jsx
new file mode 100644
index 0000000..60a50b7
--- /dev/null
+++ b/JWLLL/API_front/src/components/Header.jsx
@@ -0,0 +1,20 @@
+import React from 'react'
+import { User } from 'lucide-react'
+import '../App.css' // 或者单独的 Header.css
+
+export default function Header() {
+  return (
+    <header className="header">
+      <div className="header-left">
+        <div className="logo">小红书</div>
+        <h1 className="header-title">创作服务平台</h1>
+      </div>
+      <div className="header-right">
+        <div className="user-info">
+          <User size={16} />
+          <span>小红薯63081EA1</span>
+        </div>
+      </div>
+    </header>
+  )
+}
\ No newline at end of file
diff --git a/JWLLL/API_front/src/components/HomeFeed.jsx b/JWLLL/API_front/src/components/HomeFeed.jsx
new file mode 100644
index 0000000..0b17b1f
--- /dev/null
+++ b/JWLLL/API_front/src/components/HomeFeed.jsx
@@ -0,0 +1,212 @@
+import React, { useState, useEffect } from 'react'
+import { ThumbsUp } from 'lucide-react'
+import '../style/HomeFeed.css'
+
+const categories = [
+  '推荐','穿搭','美食','彩妆','影视',
+  '职场','情感','家居','游戏','旅行','健身'
+]
+
+const recommendModes = [
+  { label: '标签推荐', value: 'tag' },
+  { label: '协同过滤推荐', value: 'cf' }
+]
+
+const DEFAULT_USER_ID = '3' // 确保数据库有此用户
+const DEFAULT_TAGS = ['美食','影视','穿搭'] // 可根据实际数据库调整
+
+export default function HomeFeed() {
+  const [activeCat, setActiveCat] = useState('推荐')
+  const [items, setItems] = useState([])
+  const [search, setSearch] = useState('')
+  const [loading, setLoading] = useState(false)
+  const [recMode, setRecMode] = useState('tag')
+  const [userTags, setUserTags] = useState([])
+  const [recCFNum, setRecCFNum] = useState(20)
+
+  // 首次进入首页自动推荐内容
+  useEffect(() => {
+    if (activeCat === '推荐') {
+      fetchUserTagsAndRecommend()
+    } else {
+      fetchContent()
+    }
+    // eslint-disable-next-line
+  }, [])
+
+  // 切换推荐模式或分类时刷新内容
+  useEffect(() => {
+    if (activeCat === '推荐') {
+      fetchUserTagsAndRecommend()
+    } else {
+      fetchContent()
+    }
+    // eslint-disable-next-line
+  }, [activeCat, recMode])
+
+  // 获取用户兴趣标签后再推荐
+  const fetchUserTagsAndRecommend = async () => {
+    setLoading(true)
+    let tags = []
+    try {
+      const res = await fetch(`/user_tags?user_id=${DEFAULT_USER_ID}`)
+      const data = await res.json()
+      tags = Array.isArray(data.tags) && data.tags.length > 0 ? data.tags : DEFAULT_TAGS
+      setUserTags(tags)
+    } catch {
+      tags = DEFAULT_TAGS
+      setUserTags(tags)
+    }
+    if (recMode === 'tag') {
+      await fetchTagRecommend(tags)
+    } else {
+      await fetchCFRecommend()
+    }
+    setLoading(false)
+  }
+
+  const fetchContent = async (keyword = '') => {
+    setLoading(true)
+    try {
+      const res = await fetch('/search', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ keyword: keyword || activeCat, category: activeCat === '推荐' ? undefined : activeCat })
+      })
+      const data = await res.json()
+      setItems(data.results || [])
+    } catch (e) {
+      setItems([])
+    }
+    setLoading(false)
+  }
+
+  // 标签推荐
+  const fetchTagRecommend = async (tags) => {
+    setLoading(true)
+    try {
+      const res = await fetch('/recommend_tags', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ user_id: DEFAULT_USER_ID, tags })
+      })
+      const data = await res.json()
+      setItems(data.recommendations || [])
+    } catch (e) {
+      setItems([])
+    }
+    setLoading(false)
+  }
+
+  // 协同过滤推荐
+  const fetchCFRecommend = async (topN = recCFNum) => {
+    setLoading(true)
+    try {
+      const res = await fetch('/user_based_recommend', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ user_id: DEFAULT_USER_ID, top_n: topN })
+      })
+      const data = await res.json()
+      setItems(data.recommendations || [])
+    } catch (e) {
+      setItems([])
+    }
+    setLoading(false)
+  }
+
+  const handleSearch = e => {
+    e.preventDefault()
+    fetchContent(search)
+  }
+
+  return (
+    <div className="home-feed">
+      {/* 推荐模式切换，仅在推荐页显示 */}
+      {activeCat === '推荐' && (
+        <div style={{marginBottom:12, display:'flex', alignItems:'center', gap:16}}>
+          <span style={{marginRight:8}}>推荐模式：</span>
+          <div style={{display:'flex', gap:8}}>
+            {recommendModes.map(m => (
+              <button
+                key={m.value}
+                className={recMode===m.value? 'rec-btn styled active':'rec-btn styled'}
+                onClick={() => setRecMode(m.value)}
+                type="button"
+                style={{
+                  borderRadius: 20,
+                  padding: '4px 18px',
+                  border: recMode===m.value ? '2px solid #e84c4a' : '1px solid #ccc',
+                  background: recMode===m.value ? '#fff0f0' : '#fff',
+                  color: recMode===m.value ? '#e84c4a' : '#333',
+                  fontWeight: recMode===m.value ? 600 : 400,
+                  cursor: 'pointer',
+                  transition: 'all 0.2s',
+                  outline: 'none',
+                }}
+              >{m.label}</button>
+            ))}
+          </div>
+          {/* 协同过滤推荐数量选择 */}
+          {recMode === 'cf' && (
+            <div style={{display:'flex',alignItems:'center',gap:4}}>
+              <span>推荐数量：</span>
+              <select value={recCFNum} onChange={e => { setRecCFNum(Number(e.target.value)); fetchCFRecommend(Number(e.target.value)) }} style={{padding:'2px 8px',borderRadius:6,border:'1px solid #ccc'}}>
+                {[10, 20, 30, 50].map(n => <option key={n} value={n}>{n}</option>)}
+              </select>
+            </div>
+          )}
+        </div>
+      )}
+      {/* 搜索栏 */}
+      <form className="feed-search" onSubmit={handleSearch} style={{marginBottom:16, display:'flex', gap:8, alignItems:'center'}}>
+        <input
+          type="text"
+          className="search-input"
+          placeholder="搜索内容/标题/标签"
+          value={search}
+          onChange={e => setSearch(e.target.value)}
+        />
+        <button type="submit" className="search-btn">搜索</button>
+      </form>
+      {/* 顶部分类 */}
+      <nav className="feed-tabs">
+        {categories.map(cat => (
+          <button
+            key={cat}
+            className={cat === activeCat ? 'tab active' : 'tab'}
+            onClick={() => { setActiveCat(cat); setSearch('') }}
+          >
+            {cat}
+          </button>
+        ))}
+      </nav>
+      {/* 瀑布流卡片区 */}
+      <div className="feed-grid">
+        {loading ? <div style={{padding:32}}>加载中...</div> :
+          items.length === 0 ? <div style={{padding:32, color:'#aaa'}}>暂无推荐内容</div> :
+          items.map(item => (
+            <div key={item.id} className="feed-card">
+              {/* 封面图 */}
+              {/* <img className="card-img" src={item.img} alt={item.title} /> */}
+              {/* 标题 */}
+              <h3 className="card-title">{item.title}</h3>
+              {/* 内容摘要 */}
+              <div className="card-content">{item.content?.slice(0, 60) || ''}</div>
+              {/* 底部作者 + 点赞 */}
+              <div className="card-footer">
+                <div className="card-author">
+                  {/* <img className="avatar" src={item.avatar} alt={item.author} /> */}
+                  <span className="username">{item.author || '佚名'}</span>
+                </div>
+                <div className="card-likes">
+                  <ThumbsUp size={16} />
+                  <span className="likes-count">{item.heat || 0}</span>
+                </div>
+              </div>
+            </div>
+          ))}
+      </div>
+    </div>
+  )
+}
\ No newline at end of file
diff --git a/JWLLL/API_front/src/components/PlaceholderPage.jsx b/JWLLL/API_front/src/components/PlaceholderPage.jsx
new file mode 100644
index 0000000..b290eb4
--- /dev/null
+++ b/JWLLL/API_front/src/components/PlaceholderPage.jsx
@@ -0,0 +1,55 @@
+import React from 'react'
+import {
+  Home,
+  BookOpen,
+  Activity,
+  Users
+} from 'lucide-react'
+import '../App.css' // 或 PlaceholderPage.css
+
+const icons = {
+  home: Home,
+  notebooks: BookOpen,
+  activity: Activity,
+  notes: BookOpen,
+  creator: Users,
+  journal: BookOpen,
+}
+
+const titles = {
+  home:      '欢迎来到小红书创作平台',
+  notebooks: '笔记管理功能开发中',
+  activity:  '活动中心功能开发中',
+  notes:     '笔记灵感功能开发中',
+  creator:   '创作学院功能开发中',
+  journal:   '创作日刊功能开发中',
+}
+
+const descs = {
+  home:      '在这里您可以管理您的创作内容，查看数据分析，获取创作灵感。',
+  notebooks: '这里将显示您的所有笔记，支持编辑、删除、分类等操作。',
+  activity:  '这里将展示最新的平台活动，让您参与更多有趣的创作活动。',
+  notes:     '这里将为您提供创作灵感和写作建议，帮助您创作更好的内容。',
+  creator:   '这里将提供创作技巧教学和平台规则说明，助您成为优秀创作者。',
+  journal:   '这里将展示创作相关的最新资讯和平台动态。',
+}
+
+export default function PlaceholderPage({ pageId }) {
+  const Icon = icons[pageId] || Home
+  return (
+    <div className="page-content">
+      <div className="page-header">
+        <h1 className="page-title">{titles[pageId]}</h1>
+      </div>
+      <div className="page-body">
+        <div className="placeholder-content">
+          <div className="placeholder-icon">
+            <Icon size={48} />
+          </div>
+          <h3 className="placeholder-title">{titles[pageId]}</h3>
+          <p className="placeholder-desc">{descs[pageId]}</p>
+        </div>
+      </div>
+    </div>
+  )
+}
\ No newline at end of file
diff --git a/JWLLL/API_front/src/components/Sidebar.jsx b/JWLLL/API_front/src/components/Sidebar.jsx
new file mode 100644
index 0000000..b6acad5
--- /dev/null
+++ b/JWLLL/API_front/src/components/Sidebar.jsx
@@ -0,0 +1,95 @@
+import React, { useState, useEffect } from 'react'
+import { NavLink, useLocation, useNavigate } from 'react-router-dom'
+import {
+  Home,
+  BookOpen,
+  BarChart3,
+  Activity,
+  Users,
+  ChevronDown,
+} from 'lucide-react'
+
+
+const menuItems = [
+  { id: 'home',      label: '首页',       icon: Home,      path: '/home' },
+  { id: 'notebooks', label: '笔记管理',   icon: BookOpen,  path: '/notebooks' },
+  {
+    id: 'dashboard',
+    label: '数据看板',
+    icon: BarChart3,
+    path: '/dashboard',
+    submenu: [
+      { id: 'overview', label: '账号概况', path: '/dashboard/overview' },
+      { id: 'content',  label: '内容分析', path: '/dashboard/content'  },
+      { id: 'fans',     label: '粉丝数据', path: '/dashboard/fans'     },
+    ]
+  },
+  { id: 'activity', label: '活动中心', icon: Activity, path: '/activity' },
+  { id: 'notes',    label: '笔记灵感', icon: BookOpen, path: '/notes'    },
+  { id: 'creator',  label: '创作学院', icon: Users,    path: '/creator'  },
+  { id: 'journal',  label: '创作日刊', icon: BookOpen, path: '/journal'  },
+]
+
+export default function Sidebar() {
+  const [expandedMenu, setExpandedMenu] = useState(null)
+  const location = useLocation()
+  const navigate = useNavigate()
+
+  useEffect(() => {
+    if (location.pathname.startsWith('/dashboard')) {
+      setExpandedMenu('dashboard')
+    }
+  }, [location.pathname])
+
+  const toggleMenu = item => {
+    if (item.submenu) {
+      setExpandedMenu(expandedMenu === item.id ? null : item.id)
+    } else {
+      navigate(item.path)
+      setExpandedMenu(null)
+    }
+  }
+
+  return (
+    <aside className="sidebar">
+      <button className="publish-btn">发布笔记</button>
+      <nav className="nav-menu">
+        {menuItems.map(item => (
+          <div key={item.id} className="nav-item">
+            <a
+              href="#"
+              className={`nav-link${location.pathname === item.path ? ' active' : ''}`}
+              onClick={e => { e.preventDefault(); toggleMenu(item) }}
+            >
+              <item.icon size={16} />
+              <span>{item.label}</span>
+              {item.submenu && (
+                <ChevronDown
+                  size={16}
+                  style={{
+                    marginLeft: 'auto',
+                    transform: expandedMenu === item.id ? 'rotate(180deg)' : 'rotate(0deg)',
+                    transition: 'transform 0.3s ease'
+                  }}
+                />
+              )}
+            </a>
+            {item.submenu && expandedMenu === item.id && (
+              <div className="nav-submenu">
+                {item.submenu.map(sub => (
+                  <NavLink
+                    key={sub.id}
+                    to={sub.path}
+                    className={({ isActive }) => `nav-link${isActive ? ' active' : ''}`}
+                  >
+                    {sub.label}
+                  </NavLink>
+                ))}
+              </div>
+            )}
+          </div>
+        ))}
+      </nav>
+    </aside>
+  )
+}
\ No newline at end of file
diff --git a/JWLLL/API_front/src/components/UploadPage.jsx b/JWLLL/API_front/src/components/UploadPage.jsx
new file mode 100644
index 0000000..e6db861
--- /dev/null
+++ b/JWLLL/API_front/src/components/UploadPage.jsx
@@ -0,0 +1,200 @@
+import React, { useState } from 'react'
+import { Image, Video } from 'lucide-react'
+
+
+export default function UploadPage() {
+  const [activeTab, setActiveTab]         = useState('image')
+  const [isDragOver, setIsDragOver]       = useState(false)
+  const [isUploading, setIsUploading]     = useState(false)
+  const [uploadedFiles, setUploadedFiles] = useState([])
+  const [uploadProgress, setUploadProgress] = useState(0)
+
+  const validateFiles = files => {
+    const imgTypes = ['image/jpeg','image/jpg','image/png','image/webp']
+    const vidTypes = ['video/mp4','video/mov','video/avi']
+    const types = activeTab==='video'? vidTypes : imgTypes
+    const max   = activeTab==='video'? 2*1024*1024*1024 : 32*1024*1024
+
+    const invalid = files.filter(f => !types.includes(f.type) || f.size > max)
+    if (invalid.length) {
+      alert(`发现 ${invalid.length} 个无效文件，请检查文件格式和大小`)
+      return false
+    }
+    return true
+  }
+
+  const simulateUpload = files => {
+    setIsUploading(true)
+    setUploadProgress(0)
+    setUploadedFiles(files)
+    const iv = setInterval(() => {
+      setUploadProgress(p => {
+        if (p >= 100) {
+          clearInterval(iv)
+          setIsUploading(false)
+          alert(`成功上传了 ${files.length} 个文件`)
+          return 100
+        }
+        return p + 10
+      })
+    }, 200)
+  }
+
+  const handleFileUpload = () => {
+    if (isUploading) return
+    const input = document.createElement('input')
+    input.type = 'file'
+    input.accept = activeTab==='video'? 'video/*' : 'image/*'
+    input.multiple = activeTab==='image'
+    input.onchange = e => {
+      const files = Array.from(e.target.files)
+      if (files.length > 0 && validateFiles(files)) simulateUpload(files)
+    }
+    input.click()
+  }
+
+  const handleDragOver  = e => { e.preventDefault(); e.stopPropagation(); setIsDragOver(true) }
+  const handleDragLeave = e => { e.preventDefault(); e.stopPropagation(); setIsDragOver(false) }
+  const handleDrop      = e => {
+    e.preventDefault(); e.stopPropagation(); setIsDragOver(false)
+    if (isUploading) return
+    const files = Array.from(e.dataTransfer.files)
+    if (files.length > 0 && validateFiles(files)) simulateUpload(files)
+  }
+
+  const clearFiles = () => setUploadedFiles([])
+  const removeFile = idx => setUploadedFiles(f => f.filter((_,i) => i!==idx))
+
+  return (
+    <>
+      <div className="upload-tabs">
+        <button
+          className={`upload-tab${activeTab==='video'?' active':''}`}
+          onClick={() => setActiveTab('video')}
+        >上传视频</button>
+        <button
+          className={`upload-tab${activeTab==='image'?' active':''}`}
+          onClick={() => setActiveTab('image')}
+        >上传图文</button>
+      </div>
+
+      <div
+        className={`upload-area${isDragOver?' drag-over':''}`}
+        onDragOver={handleDragOver}
+        onDragLeave={handleDragLeave}
+        onDrop={handleDrop}
+      >
+        <div className="upload-icon">
+          {activeTab==='video'? <Video/> : <Image/>}
+        </div>
+        <h2 className="upload-title">
+          {activeTab==='video'
+            ? '拖拽视频到此处或点击上传'
+            : '拖拽图片到此处或点击上传'
+          }
+        </h2>
+        <p className="upload-subtitle">(需支持上传格式)</p>
+        <button
+          className={`upload-btn${isUploading?' uploading':''}`}
+          onClick={handleFileUpload}
+          disabled={isUploading}
+        >
+          {isUploading
+            ? `上传中... ${uploadProgress}%`
+            : activeTab==='video'
+              ? '上传视频'
+              : '上传图片'
+          }
+        </button>
+
+        {isUploading && (
+          <div className="progress-container">
+            <div className="progress-bar">
+              <div
+                className="progress-fill"
+                style={{ width: `${uploadProgress}%` }}
+              />
+            </div>
+            <div className="progress-text">{uploadProgress}%</div>
+          </div>
+        )}
+      </div>
+
+      {uploadedFiles.length > 0 && (
+        <div className="file-preview-area">
+          <div className="preview-header">
+            <h3 className="preview-title">已上传文件 ({uploadedFiles.length})</h3>
+            <button className="clear-files-btn" onClick={clearFiles}>
+              清除所有
+            </button>
+          </div>
+          <div className="file-grid">
+            {uploadedFiles.map((file, i) => (
+              <div key={i} className="file-item">
+                <button
+                  className="remove-file-btn"
+                  onClick={() => removeFile(i)}
+                  title="删除文件"
+                >×</button>
+                {file.type.startsWith('image/') ? (
+                  <div className="file-thumbnail">
+                    <img src={URL.createObjectURL(file)} alt={file.name} />
+                  </div>
+                ) : (
+                  <div className="file-thumbnail video-thumbnail">
+                    <Video size={24} />
+                  </div>
+                )}
+                <div className="file-info">
+                  <div className="file-name" title={file.name}>
+                    {file.name.length > 20
+                      ? file.name.slice(0,17) + '...'
+                      : file.name
+                    }
+                  </div>
+                  <div className="file-size">
+                    {(file.size/1024/1024).toFixed(2)} MB
+                  </div>
+                </div>
+              </div>
+            ))}
+          </div>
+        </div>
+      )}
+
+      <div className="upload-info fade-in">
+        {activeTab==='image' ? (
+          <>
+            <div className="info-item">
+              <h3 className="info-title">图片大小</h3>
+              <p className="info-desc">最大32MB</p>
+            </div>
+            <div className="info-item">
+              <h3 className="info-title">图片格式</h3>
+              <p className="info-desc">png/jpg/jpeg/webp</p>
+            </div>
+            <div className="info-item">
+              <h3 className="info-title">分辨率</h3>
+              <p className="info-desc">建议720×960及以上</p>
+            </div>
+          </>
+        ) : (
+          <>
+            <div className="info-item">
+              <h3 className="info-title">视频大小</h3>
+              <p className="info-desc">最大2GB，时长≤5分钟</p>
+            </div>
+            <div className="info-item">
+              <h3 className="info-title">视频格式</h3>
+              <p className="info-desc">mp4/mov</p>
+            </div>
+            <div className="info-item">
+              <h3 className="info-title">分辨率</h3>
+              <p className="info-desc">建议720P及以上</p>
+            </div>
+          </>
+        )}
+      </div>
+    </>
+  )
+}
\ No newline at end of file