card design

This tailwind example is contributed by Tanvir Hasan Bappy (Tanvir), on 29-Dec-2025. Component is made with Tailwind CSS v3. It is responsive. similar terms for this example are Article Card, Blog page card, Article card

Blog Card

Author Tanvir Hasan Bappy (Tanvir)

149

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<html lang="zh-CN"><head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>健康追踪 - 饮食热量管理应用</title>
  
  <script src="https://cdn.tailwindcss.com"></script>
  
  <link href="https://cdn.jsdelivr.net/npm/font-awesome@4.7.0/css/font-awesome.min.css" rel="stylesheet">
  
  <script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.8/dist/chart.umd.min.js"></script>
  
  <script>
    tailwind.config = {
      theme: {
        extend: {
          colors: {
            primary: '#22c55e',
            secondary: '#16a34a',
            tertiary: '#86efac',
            dark: '#1e293b',
            light: '#f8fafc',
            'primary-light': '#dcfce7',
            'primary-dark': '#15803d'
          },
          fontFamily: {
            sans: ['Inter', 'system-ui', 'sans-serif'],
          },
          animation: {
            'pulse-slow': 'pulse 3s cubic-bezier(0.4, 0, 0.6, 1) infinite',
          }
        }
      }
    }
  </script>
  <style type="text/tailwindcss">
    @layer utilities {
      .content-auto {
        content-visibility: auto;
      }
      .text-shadow {
        text-shadow: 0 2px 4px rgba(0,0,0,0.1);
      }
      .card-shadow {
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
      }
      .progress-ring-circle {
        transition: stroke-dashoffset 0.35s;
        transform: rotate(-90deg);
        transform-origin: 50% 50%;
      }
      .tab-indicator {
        transition: transform 0.3s ease;
      }
      .food-card-hover {
        transition: all 0.3s ease;
      }
      .food-card-hover:hover {
        transform: translateY(-5px);
      }
    }
  </style>
</head>
<body class="bg-gray-50 font-sans text-dark">
  <div class="max-w-md mx-auto min-h-screen bg-white relative">
    
    <div id="app" class="relative">
      
      <div id="dashboard-page" class="page active">
        
        <header class="bg-gradient-to-r from-primary to-secondary text-white p-4">
          <div class="flex justify-between items-center">
            <div>
              <h1 class="text-xl font-bold" id="greeting">晓荷饮食管理</h1>
              <p class="text-sm opacity-90" id="current-date">2025年7月21日 星期一</p>
            </div>
            <div class="w-10 h-10 rounded-full bg-primary-light text-primary flex items-center justify-center text-3xl">🧘‍♀️</div>
          </div>
        </header>

<div class="p-6 flex flex-col items-center">
          <div class="relative w-48 h-48 mb-4">
            <svg class="w-full h-full" viewBox="0 0 100 100">
              
              <circle class="text-gray-200" stroke-width="8" stroke="currentColor" fill="transparent" r="40" cx="50" cy="50"></circle>
              
              <circle id="progress-ring" class="text-primary progress-ring-circle" stroke-width="8" stroke="currentColor" fill="transparent" r="40" cx="50" cy="50" stroke-dasharray="251.2" stroke-dashoffset="188.4"></circle>
            </svg>
            <div class="absolute inset-0 flex flex-col items-center justify-center">
              <span id="calorie-progress" class="text-3xl font-bold text-dark">300</span>
              <span class="text-sm text-gray-500">&nbsp;1200 Cals</span>
            </div>
          </div>
          <div class="w-full max-w-xs">
            <div class="flex justify-between text-sm text-gray-500 mb-1">
              <span>今日摄入</span>
              <span id="calorie-percentage">25%</span>
            </div>
            <div class="w-full bg-gray-200 rounded-full h-2">
              <div id="calorie-bar" class="bg-primary h-2 rounded-full" style="width: 25%"></div>
            </div>
          </div>
        </div>

<div class="px-4 mb-6">
          <h2 class="text-lg font-semibold mb-3">
</h2>
          <div class="grid grid-cols-3 gap-3">
            
            <div class="bg-blue-50 rounded-xl p-3 flex flex-col items-center">
              <div class="w-12 h-12 rounded-full bg-blue-100 flex items-center justify-center mb-2 text-2xl">
                🍞
              </div>
              <span class="text-xs text-gray-500">碳水化合物</span>
              <span id="carbs-value" class="font-semibold">25g</span>
            </div>
            
            <div class="bg-purple-50 rounded-xl p-3 flex flex-col items-center">
              <div class="w-12 h-12 rounded-full bg-purple-100 flex items-center justify-center mb-2 text-2xl">
                🥩
              </div>
              <span class="text-xs text-gray-500">蛋白质</span>
              <span id="protein-value" class="font-semibold">18g</span>
            </div>
            
            <div class="bg-yellow-50 rounded-xl p-3 flex flex-col items-center">
              <div class="w-12 h-12 rounded-full bg-yellow-100 flex items-center justify-center mb-2 text-2xl" style="color: rgb(123, 145, 181);">🥑</div>
              <span class="text-xs text-gray-500">脂肪</span>
              <span id="fat-value" class="font-semibold">12g</span>
            </div>
          </div>
        </div>

<div class="px-4 mb-10 py-10">
          <div class="flex justify-between items-center mb-3">
            <h2 class="text-lg font-semibold">今日餐食</h2>
            <button id="add-meal-btn" class="text-primary text-sm flex items-center">
              <i class="fa fa-plus-circle mr-1"></i> 添加餐食
            </button>
          </div>
          
          
          <div class="relative mb-4">
            <div class="flex justify-between">
              <button class="meal-tab flex-1 py-2 text-center text-sm font-medium text-primary border-b-2 border-primary" data-meal="breakfast">早餐</button>
              <button class="meal-tab flex-1 py-2 text-center text-sm font-medium text-gray-400 border-b-2 border-transparent" data-meal="lunch">午餐</button>
              <button class="meal-tab flex-1 py-2 text-center text-sm font-medium text-gray-400 border-b-2 border-transparent" data-meal="dinner">晚餐</button>
              <button class="meal-tab flex-1 py-2 text-center text-sm font-medium text-gray-400 border-b-2 border-transparent" data-meal="snack">零食</button>
            </div>
            <div class="tab-indicator absolute bottom-0 left-0 h-0.5 bg-primary w-1/4"></div>
          </div>
          
          
          <div class="meal-content active" id="breakfast-content">
            <div class="space-y-3" id="breakfast-list">
              
              <div class="bg-white rounded-xl p-3 border border-gray-100 card-shadow flex justify-between items-center">
                <div class="flex items-center">
                  <div class="w-10 h-10 rounded-lg overflow-hidden mr-3">
                    <div class="w-full h-full flex items-center justify-center bg-green-100 text-xl">🥝</div>
                  </div>
                  <div>
                    <h3 class="font-medium">猕猴桃</h3>
                    <p class="text-xs text-gray-500">1个 · 61卡路里</p>
                  </div>
                </div>
                <button class="text-gray-400 hover:text-red-500">
                  <i class="fa fa-trash"></i>
                </button>
              </div>
              <div class="bg-white rounded-xl p-3 border border-gray-100 card-shadow flex justify-between items-center">
                <div class="flex items-center">
                  <div class="w-10 h-10 rounded-lg overflow-hidden mr-3">
                    <div class="w-full h-full flex items-center justify-center bg-orange-100 text-xl">🥭</div>
                  </div>
                  <div>
                    <h3 class="font-medium">百香果</h3>
                    <p class="text-xs text-gray-500">1个 · 97卡路里</p>
                  </div>
                </div>
                <button class="text-gray-400 hover:text-red-500">
                  <i class="fa fa-trash"></i>
                </button>
              </div>
            </div>
            
            <div class="hidden flex flex-col items-center justify-center py-8 text-gray-400">
              <i class="fa fa-utensils text-4xl mb-2"></i>
              <p class="text-sm">早餐还没有记录</p>
              <button class="mt-2 text-primary text-sm">添加食物</button>
            </div>
          </div>
          
          <div class="meal-content hidden" id="lunch-content">
            <div class="space-y-3" id="lunch-list">
              
            </div>
            
            <div class="flex flex-col items-center justify-center py-8 text-gray-400">
              <i class="fa fa-utensils text-4xl mb-2"></i>
              <p class="text-sm">午餐还没有记录</p>
              <button class="mt-2 text-primary text-sm add-food-btn" data-meal="lunch">添加食物</button>
            </div>
          </div>
          
          <div class="meal-content hidden" id="dinner-content">
            <div class="space-y-3" id="dinner-list">
              
            </div>
            
            <div class="flex flex-col items-center justify-center py-8 text-gray-400">
              <i class="fa fa-utensils text-4xl mb-2"></i>
              <p class="text-sm">晚餐还没有记录</p>
              <button class="mt-2 text-primary text-sm add-food-btn" data-meal="dinner">添加食物</button>
            </div>
          </div>
          
          <div class="meal-content hidden" id="snack-content">
            <div class="space-y-3" id="snack-list">
              
            </div>
            
            <div class="flex flex-col items-center justify-center py-8 text-gray-400">
              <i class="fa fa-utensils text-4xl mb-2"></i>
              <p class="text-sm">零食还没有记录</p>
              <button class="mt-2 text-primary text-sm add-food-btn" data-meal="snack">添加食物</button>
            </div>
          </div>
        </div>
      </div>

<div id="search-page" class="page hidden">
        <header class="bg-white shadow-sm p-4 sticky top-0 z-10">
          <div class="relative">
            <input type="text" id="food-search-input" placeholder="搜索食物..." class="w-full pl-10 pr-4 py-2 rounded-full bg-gray-100 focus:outline-none focus:ring-2 focus:ring-primary">
            <i class="fa fa-search absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-400"></i>
          </div>
        </header>
        
        
        <div class="px-4 py-3 overflow-x-auto">
          <div class="flex space-x-2 min-w-max">
            <button class="category-btn whitespace-nowrap px-4 py-1 rounded-full bg-primary text-white text-sm">全部</button>
            <button class="category-btn whitespace-nowrap px-4 py-1 rounded-full bg-gray-100 text-gray-700 text-sm">水果</button>
            <button class="category-btn whitespace-nowrap px-4 py-1 rounded-full bg-gray-100 text-gray-700 text-sm">蔬菜</button>
            <button class="category-btn whitespace-nowrap px-4 py-1 rounded-full bg-gray-100 text-gray-700 text-sm">主食</button>
            <button class="category-btn whitespace-nowrap px-4 py-1 rounded-full bg-gray-100 text-gray-700 text-sm">蛋白质</button>
            <button class="category-btn whitespace-nowrap px-4 py-1 rounded-full bg-gray-100 text-gray-700 text-sm">零食</button>
          </div>
        </div>
        
        
        <div class="p-4" id="search-results">
          <div class="pb-16 grid grid-cols-2 gap-3">
            
          </div>
          
          
          <div id="search-empty-state" class="hidden flex flex-col items-center justify-center py-12 text-gray-400">
            <i class="fa fa-search text-4xl mb-2"></i>
            <p class="text-sm">没有找到匹配的食物</p>
            <p class="text-xs mt-1">请尝试其他关键词</p>
          </div>
        </div>
      </div>

<div id="food-detail-page" class="page hidden">
        <header class="bg-white shadow-sm p-4 sticky top-0 z-10 flex justify-between items-center">
          <button id="back-to-search" class="text-gray-500">
            <i class="fa fa-arrow-left"></i>
          </button>
          <h2 class="font-medium">食物详情</h2>
          <div class="w-6"></div> 
        </header>
        
        <div class="p-4">
          
          <div class="w-full h-48 rounded-xl overflow-hidden mb-4 flex items-center justify-center bg-gray-100">
            <div id="food-detail-emoji" class="text-8xl">🐟</div>
          </div>
          
          
          <div class="flex justify-between items-center mb-4">
            <h1 id="food-detail-name" class="text-xl font-bold">猕猴桃</h1>
            <span id="food-detail-calorie" class="text-primary font-semibold">61 卡路里</span>
          </div>
          
          
          <div class="bg-gray-50 rounded-xl p-4 mb-4">
            <h3 class="text-sm font-medium text-gray-500 mb-3">营养成分 (每份)</h3>
            <div class="space-y-2">
              <div class="flex justify-between">
                <span class="text-sm">碳水化合物</span>
                <span id="food-detail-carbs" class="text-sm font-medium">15g</span>
              </div>
              <div class="flex justify-between">
                <span class="text-sm">蛋白质</span>
                <span id="food-detail-protein" class="text-sm font-medium">1.1g</span>
              </div>
              <div class="flex justify-between">
                <span class="text-sm">脂肪</span>
                <span id="food-detail-fat" class="text-sm font-medium">0.5g</span>
              </div>
              <div class="flex justify-between">
                <span class="text-sm">膳食纤维</span>
                <span id="food-detail-fiber" class="text-sm font-medium">2.6g</span>
              </div>
            </div>
          </div>
          
          
          <div class="mb-6">
            <h3 class="text-sm font-medium text-gray-500 mb-3">选择份量</h3>
            <div class="grid grid-cols-3 gap-2">
              <button class="portion-btn px-3 py-2 border border-gray-200 rounded-lg text-center">
                <span class="block text-sm">1/2个</span>
                <span class="block text-xs text-gray-500">30卡路里</span>
              </button>
              <button class="portion-btn px-3 py-2 border border-primary bg-primary-light rounded-lg text-center">
                <span class="block text-sm">1个</span>
                <span class="block text-xs text-gray-500">61卡路里</span>
              </button>
              <button class="portion-btn px-3 py-2 border border-gray-200 rounded-lg text-center">
                <span class="block text-sm">2个</span>
                <span class="block text-xs text-gray-500">122卡路里</span>
              </button>
            </div>
          </div>
          
          
          <button id="add-to-meal-btn" class="w-full py-3 bg-primary text-white rounded-xl font-medium flex items-center justify-center">
            <i class="fa fa-plus-circle mr-2"></i> 添加到早餐
          </button>
        </div>
      </div>

<div id="progress-page" class="page hidden">
        <header class="bg-gradient-to-r from-primary to-secondary text-white p-4">
          <h1 class="text-xl font-bold">进度追踪</h1>
        </header>
        
        
        <div class="p-6 pb-24">
          <div class="bg-white rounded-xl p-4 card-shadow mb-6">
            <div class="flex justify-between items-center mb-4">
              <h2 class="text-lg font-semibold">总体进度</h2>
              <span class="text-sm text-gray-500">本周</span>
            </div>
            <div class="flex items-center justify-center mb-4">
              <div class="relative w-32 h-32">
                <svg class="w-full h-full" viewBox="0 0 100 100">
                  
                  <circle class="text-gray-200" stroke-width="8" stroke="currentColor" fill="transparent" r="40" cx="50" cy="50"></circle>
                  
                  <circle class="text-primary progress-ring-circle" stroke-width="8" stroke="currentColor" fill="transparent" r="40" cx="50" cy="50" stroke-dasharray="251.2" stroke-dashoffset="100.5"></circle>
                </svg>
                <div class="absolute inset-0 flex flex-col items-center justify-center">
                  <span class="text-2xl font-bold text-dark">60%</span>
                  <span class="text-xs text-gray-500">完成率</span>
                </div>
              </div>
            </div>
            <div class="flex justify-between text-sm">
              <div class="text-center">
                <p class="text-gray-500">目标</p>
                <p class="font-medium">1200卡路里/天</p>
              </div>
              <div class="text-center">
                <p class="text-gray-500">平均摄入</p>
                <p class="font-medium">950卡路里/天</p>
              </div>
              <div class="text-center">
                <p class="text-gray-500">连续打卡</p>
                <p class="font-medium">5天</p>
              </div>
            </div>
          </div>
          
          
          <div class="bg-white rounded-xl p-4 card-shadow mb-6">
            <div class="flex justify-between items-center mb-4">
              <h2 class="text-lg font-semibold">每日摄入趋势</h2>
              <div class="flex space-x-1">
                <button class="text-xs px-2 py-1 bg-primary text-white rounded">周</button>
                <button class="text-xs px-2 py-1 bg-gray-100 text-gray-500 rounded">月</button>
              </div>
            </div>
            <div class="h-40">
              <canvas id="calorie-chart"></canvas>
            </div>
          </div>
          
          
          <div class="bg-white rounded-xl p-4 card-shadow">
            <div class="flex justify-between items-center mb-4">
              <h2 class="text-lg font-semibold">营养分布</h2>
              <span class="text-sm text-gray-500">本周平均</span>
            </div>
            <div class="flex justify-center mb-4">
              <div class="w-32 h-32">
                <canvas id="nutrition-chart"></canvas>
              </div>
            </div>
            <div class="grid grid-cols-3 gap-2 text-center">
              <div>
                <div class="w-3 h-3 rounded-full bg-blue-500 mx-auto mb-1"></div>
                <p class="text-xs">碳水化合物</p>
                <p class="text-sm font-medium">50%</p>
              </div>
              <div>
                <div class="w-3 h-3 rounded-full bg-purple-500 mx-auto mb-1"></div>
                <p class="text-xs">蛋白质</p>
                <p class="text-sm font-medium">30%</p>
              </div>
              <div>
                <div class="w-3 h-3 rounded-full bg-yellow-500 mx-auto mb-1"></div>
                <p class="text-xs">脂肪</p>
                <p class="text-sm font-medium">20%</p>
              </div>
            </div>
          </div>
        </div>
      </div>

<div id="profile-page" class="page hidden">
        <header class="bg-gradient-to-r from-primary to-secondary text-white p-4">
          <h1 class="text-xl font-bold">我的</h1>
        </header>
        
        <div class="p-6 pb-24">
          
          <div class="flex flex-col items-center mb-6">
            <div class="w-24 h-24 rounded-full bg-primary-light text-primary flex items-center justify-center text-5xl border-4 border-white shadow-md">
              👦
            </div>
            <h2 class="text-xl font-bold">用户</h2>
            <p class="text-sm text-gray-500">已使用 14 天</p>
          </div>
          
          
          <div class="bg-white rounded-xl p-4 card-shadow mb-6">
            <h2 class="text-lg font-semibold mb-4">每日热量目标</h2>
            <div class="flex items-center justify-between mb-2">
              <span class="text-sm">1200 卡路里</span>
              <button class="text-primary text-sm">编辑</button>
            </div>
            <input type="range" min="1000" max="3000" step="100" value="1200" class="w-full accent-primary">
            <div class="flex justify-between text-xs text-gray-500 mt-1">
              <span>1000</span>
              <span>2000</span>
              <span>3000</span>
            </div>
          </div>
          
          
          <div class="bg-white rounded-xl p-4 card-shadow mb-6">
            <h2 class="text-lg font-semibold mb-4">我的成就</h2>
            <div class="grid grid-cols-3 gap-3">
              <div class="flex flex-col items-center">
                <div class="w-16 h-16 rounded-full bg-primary-light flex items-center justify-center mb-2">
                  <i class="fa fa-star text-primary text-xl"></i>
                </div>
                <p class="text-xs text-center">连续7天打卡</p>
              </div>
              <div class="flex flex-col items-center">
                <div class="w-16 h-16 rounded-full bg-gray-100 flex items-center justify-center mb-2">
                  <i class="fa fa-trophy text-gray-400 text-xl"></i>
                </div>
                <p class="text-xs text-center text-gray-400">首次达成目标</p>
              </div>
              <div class="flex flex-col items-center">
                <div class="w-16 h-16 rounded-full bg-gray-100 flex items-center justify-center mb-2">
                  <i class="fa fa-leaf text-gray-400 text-xl"></i>
                </div>
                <p class="text-xs text-center text-gray-400">健康饮食</p>
              </div>
            </div>
          </div>
          
          
          <div class="bg-white rounded-xl p-4 card-shadow">
            <h2 class="text-lg font-semibold mb-4">设置</h2>
            <div class="space-y-3">
              <div class="flex justify-between items-center">
                <div class="flex items-center">
                  <i class="fa fa-bell text-gray-500 mr-3"></i>
                  <span>通知</span>
                </div>
                <label class="switch">
                  <input type="checkbox" checked="">
                  <span class="slider round"></span>
                </label>
              </div>
              <div class="flex justify-between items-center">
                <div class="flex items-center">
                  <i class="fa fa-moon-o text-gray-500 mr-3"></i>
                  <span>深色模式</span>
                </div>
                <label class="switch">
                  <input type="checkbox">
                  <span class="slider round"></span>
                </label>
              </div>
              <div class="flex justify-between items-center">
                <div class="flex items-center">
                  <i class="fa fa-history text-gray-500 mr-3"></i>
                  <span>历史记录</span>
                </div>
                <i class="fa fa-chevron-right text-gray-400"></i>
              </div>
              <div class="flex justify-between items-center">
                <div class="flex items-center">
                  <i class="fa fa-question-circle text-gray-500 mr-3"></i>
                  <span>帮助与支持</span>
                </div>
                <i class="fa fa-chevron-right text-gray-400"></i>
              </div>
            </div>
          </div>
        </div>
      </div>

<nav class="fixed bottom-0 left-0 right-0 max-w-md mx-auto bg-white border-t border-gray-200 flex justify-around items-center py-2 z-20">
        <button class="nav-btn flex flex-col items-center justify-center p-2 w-1/4 active" data-page="dashboard-page">
          <i class="fa fa-home text-lg"></i>
          <span class="text-xs mt-1">首页</span>
        </button>
        <button class="nav-btn flex flex-col items-center justify-center p-2 w-1/4" data-page="search-page">
          <i class="fa fa-search text-lg"></i>
          <span class="text-xs mt-1">搜索</span>
        </button>
        <button class="nav-btn flex flex-col items-center justify-center p-2 w-1/4" data-page="progress-page">
          <i class="fa fa-line-chart text-lg"></i>
          <span class="text-xs mt-1">进度</span>
        </button>
        <button class="nav-btn flex flex-col items-center justify-center p-2 w-1/4" data-page="profile-page">
          <i class="fa fa-user text-lg"></i>
          <span class="text-xs mt-1">我的</span>
        </button>
      </nav>
    </div>
  </div>

// 用户数据
    let userData = {
      currentCalories: 300,
      targetCalories: 1200,
      macros: {
        carbs: 25,
        protein: 18,
        fat: 12
      },
      meals: {
        breakfast: [
          {
            id: 1,
            name: '猕猴桃',
            calories: 61,
            quantity: 1,
            image: 'emoji:kiwi'
          },
          {
            id: 2,
            name: '百香果',
            calories: 97,
            quantity: 1,
            image: 'emoji:passionfruit'
          }
        ],
        lunch: [],
        dinner: [],
        snack: []
      },
      selectedMealType: 'breakfast',
      selectedFood: null
    };

// DOM 元素
    const elements = {
      pages: document.querySelectorAll('.page'),
      navBtns: document.querySelectorAll('.nav-btn'),
      mealTabs: document.querySelectorAll('.meal-tab'),
      mealContents: document.querySelectorAll('.meal-content'),
      tabIndicator: document.querySelector('.tab-indicator'),
      addMealBtn: document.getElementById('add-meal-btn'),
      addFoodBtns: document.querySelectorAll('.add-food-btn'),
      foodSearchInput: document.getElementById('food-search-input'),
      searchResults: document.getElementById('search-results'),
      searchEmptyState: document.getElementById('search-empty-state'),
      backToSearch: document.getElementById('back-to-search'),
      foodDetailPage: document.getElementById('food-detail-page'),
      foodDetailName: document.getElementById('food-detail-name'),
      foodDetailCalorie: document.getElementById('food-detail-calorie'),
      foodDetailCarbs: document.getElementById('food-detail-carbs'),
      foodDetailProtein: document.getElementById('food-detail-protein'),
      foodDetailFat: document.getElementById('food-detail-fat'),
      foodDetailFiber: document.getElementById('food-detail-fiber'),
      portionBtns: document.querySelectorAll('.portion-btn'),
      addToMealBtn: document.getElementById('add-to-meal-btn'),
      calorieProgress: document.getElementById('calorie-progress'),
      caloriePercentage: document.getElementById('calorie-percentage'),
      calorieBar: document.getElementById('calorie-bar'),
      carbsValue: document.getElementById('carbs-value'),
      proteinValue: document.getElementById('protein-value'),
      fatValue: document.getElementById('fat-value'),
      greeting: document.getElementById('greeting'),
      currentDate: document.getElementById('current-date')
    };

// 初始化
    function init() {
      // 设置当前日期和问候语
      setDateAndGreeting();
      
      // 初始化进度环
      updateProgressRing();
      
      // 初始化底部导航
      initNavigation();
      
      // 初始化餐食标签页
      initMealTabs();
      
      // 初始化搜索功能
      initSearch();
      
      // 初始化食物详情页
      initFoodDetail();
      
      // 初始化图表
      initCharts();
      
      // 绑定事件
      bindEvents();
    }

// 设置当前日期和问候语
    function setDateAndGreeting() {
      const now = new Date();
      const hours = now.getHours();
      const options = { year: 'numeric', month: 'long', day: 'numeric', weekday: 'long' };
      const dateString = now.toLocaleDateString('zh-CN', options);
      
      let greeting = '';
      if (hours < 12) {
        greeting = '早上好';
      } else if (hours < 18) {
        greeting = '下午好';
      } else {
        greeting = '晚上好';
      }
      
      elements.greeting.textContent = `${greeting}，用户`;
      elements.currentDate.textContent = dateString;
    }

// 更新进度环
    function updateProgressRing() {
      const percentage = (userData.currentCalories / userData.targetCalories) * 100;
      const clampedPercentage = Math.min(100, percentage);
      
      // 更新文本
      elements.calorieProgress.textContent = userData.currentCalories;
      elements.caloriePercentage.textContent = `${Math.round(clampedPercentage)}%`;
      
      // 更新进度条
      elements.calorieBar.style.width = `${clampedPercentage}%`;
      
      // 更新宏量营养素
      elements.carbsValue.textContent = `${userData.macros.carbs}g`;
      elements.proteinValue.textContent = `${userData.macros.protein}g`;
      elements.fatValue.textContent = `${userData.macros.fat}g`;
    }

// 初始化底部导航
    function initNavigation() {
      elements.navBtns.forEach(btn => {
        btn.addEventListener('click', () => {
          const targetPage = btn.getAttribute('data-page');
          
          // 更新导航按钮状态
          elements.navBtns.forEach(b => b.classList.remove('active'));
          btn.classList.add('active');
          
          // 切换页面
          elements.pages.forEach(page => {
            if (page.id === targetPage) {
              page.classList.remove('hidden');
              page.classList.add('active');
            } else {
              page.classList.add('hidden');
              page.classList.remove('active');
            }
          });
        });
      });
    }

// 初始化餐食标签页
    function initMealTabs() {
      elements.mealTabs.forEach((tab, index) => {
        tab.addEventListener('click', () => {
          const mealType = tab.getAttribute('data-meal');
          
          // 更新标签页状态
          elements.mealTabs.forEach(t => {
            t.classList.remove('active', 'text-primary', 'border-primary');
            t.classList.add('text-gray-400', 'border-transparent');
          });
          tab.classList.add('active', 'text-primary', 'border-primary');
          tab.classList.remove('text-gray-400', 'border-transparent');
          
          // 移动指示器
          elements.tabIndicator.style.transform = `translateX(${index * 100}%)`;
          
          // 显示对应内容
          elements.mealContents.forEach(content => {
            content.classList.add('hidden');
          });
          document.getElementById(`${mealType}-content`).classList.remove('hidden');
        });
      });
    }

// 初始化搜索功能
    function initSearch() {
      // 显示所有食物
      renderFoodCards(foodDatabase);
      
      // 搜索输入事件
      elements.foodSearchInput.addEventListener('input', () => {
        const searchTerm = elements.foodSearchInput.value.toLowerCase().trim();
        
        if (searchTerm === '') {
          renderFoodCards(foodDatabase);
          return;
        }
        
        // 搜索匹配的食物
        const filteredFoods = foodDatabase.filter(food => 
          food.name.toLowerCase().includes(searchTerm) ||
          food.category.toLowerCase().includes(searchTerm)
        );
        
        renderFoodCards(filteredFoods);
      });
    }

// 渲染食物卡片
    function renderFoodCards(foods) {
      const container = elements.searchResults.querySelector('.grid');
      container.innerHTML = '';
      
      if (foods.length === 0) {
        container.parentElement.classList.add('hidden');
        elements.searchEmptyState.classList.remove('hidden');
        return;
      }
      
      container.parentElement.classList.remove('hidden');
      elements.searchEmptyState.classList.add('hidden');
      
      foods.forEach(food => {
        const card = document.createElement('div');
        card.className = 'food-card bg-white rounded-xl overflow-hidden border border-gray-100 card-shadow food-card-hover';
        
        // 处理图片或emoji
        let imageContent = '';
        if (food.image && food.image.startsWith('emoji:')) {
          const emojiType = food.image.split(':')[1];
          let emoji = '';
          let bgColor = 'bg-gray-100';
          
          switch(emojiType) {
            case 'kiwi': emoji = '🥝'; bgColor = 'bg-green-100'; break;
            case 'passionfruit': emoji = '🥭'; bgColor = 'bg-orange-100'; break; // 使用芒果emoji代替百香果
            case 'watermelon': emoji = '🍉'; bgColor = 'bg-red-100'; break;
            case 'broccoli': emoji = '🥦'; bgColor = 'bg-green-100'; break;
            case 'bokchoy': emoji = '🥬'; bgColor = 'bg-green-100'; break;
            case 'bread': emoji = '🍞'; bgColor = 'bg-yellow-100'; break;
            case 'rice': emoji = '🍚'; bgColor = 'bg-yellow-100'; break;
            case 'chicken': emoji = '🍗'; bgColor = 'bg-yellow-100'; break;
            case 'salmon': emoji = '🐟'; bgColor = 'bg-pink-100'; break;
            case 'egg': emoji = '🥚'; bgColor = 'bg-yellow-100'; break;
            default: emoji = '🍎'; bgColor = 'bg-red-100'; // 默认水果emoji
          }
          
          imageContent = `<div class="h-full ${bgColor} flex items-center justify-center text-4xl">${emoji}</div>`;
        } else {
          imageContent = `<img src="${food.image}" alt="${food.name}" class="w-full h-full object-cover">`;
        }
        
        card.innerHTML = `
          <div class="h-24 overflow-hidden">
            ${imageContent}
          </div>
          <div class="p-3">
            <h3 class="font-medium text-sm">${food.name}</h3>
            <div class="flex justify-between items-center mt-1">
              <span class="text-xs text-gray-500">${food.category}</span>
              <span class="text-xs font-medium">${food.calories} 卡</span>
            </div>
          </div>
        `;
        
        card.addEventListener('click', () => showFoodDetail(food));
        container.appendChild(card);
      });
    }

// 初始化食物详情页
    function initFoodDetail() {
      // 返回按钮
      elements.backToSearch.addEventListener('click', () => {
        elements.foodDetailPage.classList.add('hidden');
        document.getElementById('search-page').classList.remove('hidden');
      });
      
      // 份量选择
      elements.portionBtns.forEach(btn => {
        btn.addEventListener('click', () => {
          elements.portionBtns.forEach(b => {
            b.classList.remove('border-primary', 'bg-primary-light');
            b.classList.add('border-gray-200');
          });
          btn.classList.add('border-primary', 'bg-primary-light');
          btn.classList.remove('border-gray-200');
        });
      });
      
      // 添加到餐食按钮
      elements.addToMealBtn.addEventListener('click', () => {
        if (!userData.selectedFood) return;
        
        // 获取选中的份量
        const activePortion = document.querySelector('.portion-btn.border-primary');
        const portionText = activePortion.querySelector('.text-sm').textContent;
        const caloriesText = activePortion.querySelector('.text-xs').textContent;
        const calories = parseInt(caloriesText);
        
        // 计算份量倍数
        let multiplier = 1;
        if (portionText.includes('1/2')) multiplier = 0.5;
        else if (portionText.includes('2')) multiplier = 2;
        
        // 创建餐食项
        const mealItem = {
          id: Date.now(), // 使用时间戳作为唯一ID
          name: userData.selectedFood.name,
          calories: Math.round(userData.selectedFood.calories * multiplier),
          quantity: multiplier,
          image: userData.selectedFood.image,
          macros: {
            carbs: Math.round(userData.selectedFood.carbs * multiplier),
            protein: Math.round(userData.selectedFood.protein * multiplier),
            fat: Math.round(userData.selectedFood.fat * multiplier)
          }
        };
        
        // 添加到用户数据
        userData.meals[userData.selectedMealType].push(mealItem);
        
        // 更新总热量和宏量营养素
        userData.currentCalories += mealItem.calories;
        userData.macros.carbs += mealItem.macros.carbs;
        userData.macros.protein += mealItem.macros.protein;
        userData.macros.fat += mealItem.macros.fat;
        
        // 更新UI
        updateProgressRing();
        renderMealItems();
        
        // 返回仪表板
        navigateToPage('dashboard-page');
      });
    }

// 显示食物详情
    function showFoodDetail(food) {
      userData.selectedFood = food;
      
      // 更新详情页内容
      elements.foodDetailName.textContent = food.name;
      elements.foodDetailCalorie.textContent = `${food.calories} 卡路里`;
      elements.foodDetailCarbs.textContent = `${food.carbs}g`;
      elements.foodDetailProtein.textContent = `${food.protein}g`;
      elements.foodDetailFat.textContent = `${food.fat}g`;
      elements.foodDetailFiber.textContent = `${food.fiber}g`;
      
      // 根据食物类型显示对应的emoji
      const emojiElement = document.getElementById('food-detail-emoji');
      if (food.image && food.image.startsWith('emoji:')) {
        const emojiType = food.image.split(':')[1];
        switch(emojiType) {
          case 'kiwi': emojiElement.textContent = '🥝'; break;
          case 'passionfruit': emojiElement.textContent = '🥭'; break; // 使用芒果emoji代替百香果
          case 'watermelon': emojiElement.textContent = '🍉'; break;
          case 'broccoli': emojiElement.textContent = '🥦'; break;
          case 'bokchoy': emojiElement.textContent = '🥬'; break;
          case 'bread': emojiElement.textContent = '🍞'; break;
          case 'rice': emojiElement.textContent = '🍚'; break;
          case 'chicken': emojiElement.textContent = '🍗'; break;
          case 'salmon': emojiElement.textContent = '🐟'; break;
          case 'egg': emojiElement.textContent = '🥚'; break;
          default: emojiElement.textContent = '🍎'; // 默认水果emoji
        }
      } else {
        emojiElement.textContent = '🍎'; // 默认水果emoji
      }
      
      // 更新份量按钮
      elements.portionBtns[0].querySelector('.text-xs').textContent = `${Math.round(food.calories * 0.5)}卡路里`;
      elements.portionBtns[1].querySelector('.text-xs').textContent = `${food.calories}卡路里`;
      elements.portionBtns[2].querySelector('.text-xs').textContent = `${food.calories * 2}卡路里`;
      
      // 重置份量选择
      elements.portionBtns.forEach(btn => {
        btn.classList.remove('border-primary', 'bg-primary-light');
        btn.classList.add('border-gray-200');
      });
      elements.portionBtns[1].classList.add('border-primary', 'bg-primary-light');
      elements.portionBtns[1].classList.remove('border-gray-200');
      
      // 更新添加按钮文本
      const mealTypeText = {
        'breakfast': '早餐',
        'lunch': '午餐',
        'dinner': '晚餐',
        'snack': '零食'
      };
      elements.addToMealBtn.innerHTML = `<i class="fa fa-plus-circle mr-2"></i> 添加到${mealTypeText[userData.selectedMealType]}`;
      
      // 切换到详情页
      document.getElementById('search-page').classList.add('hidden');
      elements.foodDetailPage.classList.remove('hidden');
    }

// 渲染餐食项
    function renderMealItems() {
      for (const mealType in userData.meals) {
        const container = document.getElementById(`${mealType}-list`);
        const emptyState = container.nextElementSibling;
        
        if (userData.meals[mealType].length === 0) {
          container.classList.add('hidden');
          emptyState.classList.remove('hidden');
          continue;
        }
        
        container.classList.remove('hidden');
        emptyState.classList.add('hidden');
        container.innerHTML = '';
        
        userData.meals[mealType].forEach(item => {
          const mealItem = document.createElement('div');
          mealItem.className = 'bg-white rounded-xl p-3 border border-gray-100 card-shadow flex justify-between items-center';
          
          // 处理图片或emoji
          let imageContent = '';
          if (item.image && item.image.startsWith('emoji:')) {
            const emojiType = item.image.split(':')[1];
            let emoji = '';
            let bgColor = 'bg-gray-100';
            
            switch(emojiType) {
              case 'kiwi': emoji = '🥝'; bgColor = 'bg-green-100'; break;
              case 'passionfruit': emoji = '🥭'; bgColor = 'bg-orange-100'; break; // 使用芒果emoji代替百香果
              case 'watermelon': emoji = '🍉'; bgColor = 'bg-red-100'; break;
              case 'broccoli': emoji = '🥦'; bgColor = 'bg-green-100'; break;
              case 'bokchoy': emoji = '🥬'; bgColor = 'bg-green-100'; break;
              case 'bread': emoji = '🍞'; bgColor = 'bg-yellow-100'; break;
              case 'rice': emoji = '🍚'; bgColor = 'bg-yellow-100'; break;
              case 'chicken': emoji = '🍗'; bgColor = 'bg-yellow-100'; break;
              case 'salmon': emoji = '🐟'; bgColor = 'bg-pink-100'; break;
              case 'egg': emoji = '🥚'; bgColor = 'bg-yellow-100'; break;
              default: emoji = '🍎'; bgColor = 'bg-red-100'; // 默认水果emoji
            }
            
            imageContent = `<div class="w-full h-full flex items-center justify-center ${bgColor} text-xl">${emoji}</div>`;
          } else {
            imageContent = `<img src="${item.image}" alt="${item.name}" class="w-full h-full object-cover">`;
          }
          
          mealItem.innerHTML = `
            <div class="flex items-center">
              <div class="w-10 h-10 rounded-lg overflow-hidden mr-3">
                ${imageContent}
              </div>
              <div>
                <h3 class="font-medium">${item.name}</h3>
                <p class="text-xs text-gray-500">${item.quantity}份 · ${item.calories}卡路里</p>
              </div>
            </div>
            <button class="text-gray-400 hover:text-red-500 delete-meal-item" data-id="${item.id}">
              <i class="fa fa-trash"></i>
            </button>
          `;
          
          container.appendChild(mealItem);
        });
        
        // 添加删除事件
        document.querySelectorAll('.delete-meal-item').forEach(btn => {
          btn.addEventListener('click', (e) => {
            const itemId = parseInt(e.currentTarget.getAttribute('data-id'));
            deleteMealItem(mealType, itemId);
          });
        });
      }
    }

// 删除餐食项
    function deleteMealItem(mealType, itemId) {
      const mealItems = userData.meals[mealType];
      const index = mealItems.findIndex(item => item.id === itemId);
      
      if (index !== -1) {
        const deletedItem = mealItems.splice(index, 1)[0];
        
        // 更新总热量和宏量营养素
        userData.currentCalories -= deletedItem.calories;
        userData.macros.carbs -= deletedItem.macros?.carbs || 0;
        userData.macros.protein -= deletedItem.macros?.protein || 0;
        userData.macros.fat -= deletedItem.macros?.fat || 0;
        
        // 更新UI
        updateProgressRing();
        renderMealItems();
      }
    }

// 初始化图表
    function initCharts() {
      // 每日摄入趋势图
      const calorieCtx = document.getElementById('calorie-chart').getContext('2d');
      new Chart(calorieCtx, {
        type: 'bar',
        data: {
          labels: ['周一', '周二', '周三', '周四', '周五', '周六', '周日'],
          datasets: [{
            label: '摄入热量',
            data: [950, 1050, 850, 1100, 950, 1200, 950],
            backgroundColor: '#22c55e',
            borderRadius: 6
          }, {
            label: '目标热量',
            data: [1200, 1200, 1200, 1200, 1200, 1200, 1200],
            type: 'line',
            borderColor: '#16a34a',
            borderWidth: 2,
            borderDash: [5, 5],
            pointRadius: 0,
            fill: false
          }]
        },
        options: {
          responsive: true,
          maintainAspectRatio: false,
          plugins: {
            legend: {
              display: false
            }
          },
          scales: {
            y: {
              beginAtZero: true,
              grid: {
                display: true,
                color: 'rgba(0, 0, 0, 0.05)'
              }
            },
            x: {
              grid: {
                display: false
              }
            }
          }
        }
      });
      
      // 营养分布图
      const nutritionCtx = document.getElementById('nutrition-chart').getContext('2d');
      new Chart(nutritionCtx, {
        type: 'doughnut',
        data: {
          labels: ['碳水化合物', '蛋白质', '脂肪'],
          datasets: [{
            data: [50, 30, 20],
            backgroundColor: ['#3b82f6', '#a855f7', '#eab308'],
            borderWidth: 0
          }]
        },
        options: {
          responsive: true,
          maintainAspectRatio: false,
          plugins: {
            legend: {
              display: false
            }
          },
          cutout: '70%'
        }
      });
    }

// 导航到指定页面
    function navigateToPage(pageId) {
      elements.navBtns.forEach(btn => {
        if (btn.getAttribute('data-page') === pageId) {
          btn.click();
        }
      });
    }

// 绑定事件
    function bindEvents() {
      // 添加餐食按钮
      elements.addMealBtn.addEventListener('click', () => {
        userData.selectedMealType = 'breakfast';
        navigateToPage('search-page');
      });
      
      // 添加食物按钮（餐食空状态）
      elements.addFoodBtns.forEach(btn => {
        btn.addEventListener('click', () => {
          const mealType = btn.getAttribute('data-meal');
          userData.selectedMealType = mealType;
          navigateToPage('search-page');
        });
      });
      
      // 分类筛选按钮
      document.querySelectorAll('.category-btn').forEach(btn => {
        btn.addEventListener('click', () => {
          // 更新按钮状态
          document.querySelectorAll('.category-btn').forEach(b => {
            b.classList.remove('bg-primary', 'text-white');
            b.classList.add('bg-gray-100', 'text-gray-700');
          });
          btn.classList.add('bg-primary', 'text-white');
          btn.classList.remove('bg-gray-100', 'text-gray-700');
          
          // 筛选食物
          const category = btn.textContent.trim();
          if (category === '全部') {
            renderFoodCards(foodDatabase);
          } else {
            const filteredFoods = foodDatabase.filter(food => food.category === category);
            renderFoodCards(filteredFoods);
          }
        });
      });
    }

// 页面加载完成后初始化
    document.addEventListener('DOMContentLoaded', init);
  </script>

</body></html>

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