<meta charset="UTF-8">
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  <title>汉堡快餐店 - 在线订餐</title>
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        @apply font-mono text-lg font-bold text-primary;
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  </style>
</head>
<body class="bg-light font-sans text-dark">
  <!-- 顶部导航栏 -->
  <header class="bg-white shadow-md sticky top-0 z-50">
    <div class="container mx-auto px-4 py-3 flex justify-between items-center">
      <div class="flex items-center">
        <h1 class="text-2xl font-bold text-primary">
          <i class="fa fa-cutlery mr-2"></i>海岛汉堡快餐店
        </h1>
      </div>
      
      <div class="flex items-center space-x-4">
        <button id="cart-button" class="relative p-2 rounded-full hover:bg-gray-100 transition-colors">
          <i class="fa fa-shopping-cart text-xl"></i>
          <span id="cart-count" class="badge">0</span>
        </button>
        <button id="user-button" class="p-2 rounded-full hover:bg-gray-100 transition-colors">
          <i class="fa fa-user text-xl"></i>
        </button>
      </div>
    </div>
  </header>

  <!-- 主内容区 -->
  <main class="container mx-auto px-4 py-6">
    <!-- 英雄区 -->
    <section class="relative rounded-2xl overflow-hidden mb-8" data-aos="fade-up">
      <img src="https://p9-flow-imagex-sign.byteimg.com/tos-cn-i-a9rns2rl98/rc/pc/code_assistant/7336f94f89a846679bba8a784b3a8b3c~tplv-a9rns2rl98-image.image?rcl=20250922155240777E2CA375183D6CC390&amp;rk3s=8e244e95&amp;rrcfp=2609e108&amp;x-expires=1759132365&amp;x-signature=yIb2ntHbmKduFsKe%2F5AXh0MrqZA%3D" alt="汉堡套餐" class="w-full h-[280px] object-cover">
      <div class="absolute inset-0 z-20 flex flex-col justify-center items-center text-white text-center px-4">
        <h2 class="text-4xl font-bold mb-4" style="font-size: 36px;">美味快餐 急速送达</h2>
        <p class="text-xl mb-6 max-w-md">新鲜食材,现点现做,30分钟内送达您的手中</p>
        <button class="btn-primary px-8 py-3 text-lg">立即订餐</button>
      </div>
    </section>

    <!-- 菜单分类 -->
    <section class="mb-8" data-aos="fade-up" data-aos-delay="100">
      <div class="flex overflow-x-auto pb-2 space-x-2">
        <button class="category-btn active whitespace-nowrap px-6 py-2 rounded-full bg-primary text-white" data-category="all">
          全部
        </button>
        <button class="category-btn whitespace-nowrap px-6 py-2 rounded-full bg-gray-200 hover:bg-gray-300" data-category="burger">
          汉堡
        </button>
        <button class="category-btn whitespace-nowrap px-6 py-2 rounded-full bg-gray-200 hover:bg-gray-300" data-category="pizza">
          披萨
        </button>
        <button class="category-btn whitespace-nowrap px-6 py-2 rounded-full bg-gray-200 hover:bg-gray-300" data-category="snack">
          小食
        </button>
        <button class="category-btn whitespace-nowrap px-6 py-2 rounded-full bg-gray-200 hover:bg-gray-300" data-category="drink">
          饮料
        </button>
      </div>
    </section>

    <!-- 菜单列表 -->
    <section class="mb-12" data-aos="fade-up" data-aos-delay="200">
      <div id="menu-container" class="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4 gap-6">
        <!-- 菜单项将通过JavaScript动态生成 -->
      </div>
    </section>

    <!-- 地址和时间选择 -->
    <section id="checkout-section" class="hidden bg-white rounded-2xl shadow-lg p-6 mb-12" data-aos="fade-up">
      <h2 class="text-2xl font-bold mb-6">确认订单</h2>
      
      <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
        <!-- 地址选择 -->
        <div>
          <h3 class="text-lg font-semibold mb-4">配送地址</h3>
          <div class="space-y-4">
            <div>
              <label class="block text-sm font-medium text-gray-700 mb-1">收货人</label>
              <input type="text" id="recipient-name" class="input-primary w-full" placeholder="请输入收货人姓名">
            </div>
            <div>
              <label class="block text-sm font-medium text-gray-700 mb-1">联系电话</label>
              <input type="tel" id="recipient-phone" class="input-primary w-full" placeholder="请输入联系电话">
            </div>
            <div>
              <label class="block text-sm font-medium text-gray-700 mb-1">详细地址</label>
              <textarea id="recipient-address" class="input-primary w-full" rows="3" placeholder="请输入详细配送地址"></textarea>
            </div>
          </div>
        </div>
        
        <!-- 时间选择 -->
        <div>
          <h3 class="text-lg font-semibold mb-4">配送时间</h3>
          <div class="space-y-4">
            <div>
              <label class="block text-sm font-medium text-gray-700 mb-1">选择日期</label>
              <input type="date" id="delivery-date" class="input-primary w-full">
            </div>
            <div>
              <label class="block text-sm font-medium text-gray-700 mb-1">选择时间</label>
              <select id="delivery-time" class="input-primary w-full">
                <option value="">请选择配送时间</option>
                <option value="asap">尽快送达</option>
                <option value="11:00-11:30">11:00-11:30</option>
                <option value="11:30-12:00">11:30-12:00</option>
                <option value="12:00-12:30">12:00-12:30</option>
                <option value="12:30-13:00">12:30-13:00</option>
                <option value="18:00-18:30">18:00-18:30</option>
                <option value="18:30-19:00">18:30-19:00</option>
                <option value="19:00-19:30">19:00-19:30</option>
                <option value="19:30-20:00">19:30-20:00</option>
              </select>
            </div>
            <div>
              <label class="block text-sm font-medium text-gray-700 mb-1">备注信息</label>
              <textarea id="order-notes" class="input-primary w-full" rows="3" placeholder="请输入备注信息(选填)"></textarea>
            </div>
          </div>
        </div>
      </div>
      
      <div class="mt-6 flex justify-end">
        <button id="confirm-order-btn" class="btn-primary px-8 py-3 text-lg">确认订单</button>
      </div>
    </section>

    <!-- 订单确认倒计时 -->
    <section id="countdown-section" class="hidden fixed inset-0 bg-black bg-opacity-50 z-50 flex items-center justify-center">
      <div class="bg-white rounded-2xl p-8 max-w-md w-full mx-4" data-aos="zoom-in">
        <div class="text-center">
          <div class="inline-flex items-center justify-center w-16 h-16 rounded-full bg-green-100 mb-4">
            <i class="fa fa-check text-green-500 text-2xl"></i>
          </div>
          <h2 class="text-2xl font-bold mb-2">订单提交成功!</h2>
          <p class="text-gray-600 mb-6">您的订单已成功提交,我们将尽快为您配送</p>
          
          <div class="bg-light rounded-lg p-4 mb-6">
            <p class="text-gray-700 mb-2">订单将在 <span id="countdown-timer" class="countdown">15:00</span> 后自动确认</p>
            <div class="w-full bg-gray-200 rounded-full h-2.5">
              <div id="countdown-progress" class="bg-primary h-2.5 rounded-full" style="width: 100%"></div>
            </div>
          </div>
          
          <div class="flex space-x-4">
            <button id="cancel-order-btn" class="btn-secondary flex-1">取消订单</button>
            <button id="view-order-btn" class="btn-primary flex-1">查看订单</button>
          </div>
        </div>
      </div>
    </section>
  </main>

  <!-- 购物车抽屉 -->
  <div id="cart-drawer" class="drawer fixed top-0 right-0 h-full w-full sm:w-96 bg-white shadow-xl z-50 flex flex-col">
    <div class="p-4 border-b flex justify-between items-center">
      <h2 class="text-xl font-bold">购物车</h2>
      <button id="close-cart-btn" class="p-2 rounded-full hover:bg-gray-100">
        <i class="fa fa-times"></i>
      </button>
    </div>
    
    <div id="cart-items" class="flex-1 overflow-y-auto p-4 space-y-4">
      <!-- 购物车为空状态 -->
      <div id="empty-cart" class="flex flex-col items-center justify-center h-full">
        <i class="fa fa-shopping-cart text-gray-300 text-5xl mb-4"></i>
        <p class="text-gray-500">购物车还是空的</p>
        <button id="start-shopping-btn" class="btn-primary mt-4">开始购物</button>
      </div>
      
      <!-- 购物车商品列表 -->
      <div id="cart-list" class="hidden space-y-4">
        <!-- 购物车商品将通过JavaScript动态生成 -->
      </div>
    </div>
    
    <div id="cart-summary" class="hidden p-4 border-t">
      <div class="flex justify-between mb-2">
        <span>商品总价</span>
        <span id="subtotal">¥0.00</span>
      </div>
      <div class="flex justify-between mb-2">
        <span>配送费</span>
        <span id="delivery-fee">¥0.00</span>
      </div>
      <div class="flex justify-between font-bold text-lg mt-4">
        <span>总计</span>
        <span id="total">¥0.00</span>
      </div>
      <button id="checkout-btn" class="btn-primary w-full mt-4 py-3">去结算</button>
    </div>
  </div>

  <!-- 遮罩层 -->
  <div id="overlay" class="hidden fixed inset-0 bg-black bg-opacity-50 z-40"></div>

  <script>
    // 初始化AOS动画库
    document.addEventListener('DOMContentLoaded', function() {
      AOS.init({
        duration: 800,
        once: true
      });
      
      // 设置默认配送日期为今天
      const today = new Date().toISOString().split('T')[0];
      document.getElementById('delivery-date').value = today;
      
      // 初始化菜单
      initializeMenu();
      
      // 初始化事件监听
      initializeEventListeners();
    });

    // 菜单数据
    const menuItems = [
      {
        id: 1,
        name: '豪华汉堡套餐',
        category: 'burger',
        price: 29.9,
        image: 'https://p3-flow-imagex-sign.byteimg.com/ocean-cloud-tos/image_generation/d71f5507415380a577cf086dcaeb62c9_1758794597811761092.jpeg~tplv-a9rns2rl98-image.jpeg?rk3s=25bff839&x-expires=2074154597&x-signature=2GmefjZTaI365wp2KmoWUOkgBsI%3D',
        description: '双层牛肉汉堡搭配金黄薯条和冰爽可乐',
        rating: 4.8,
        reviewCount: 125
      },
      {
        id: 2,
        name: '鸡肉汉堡套餐',
        category: 'burger',
        price: 25.9,
        image: 'https://p3-flow-imagex-sign.byteimg.com/ocean-cloud-tos/image_generation/8afa3a388a87eaca0fdb9005e2863158_1758794679990001526.jpeg~tplv-a9rns2rl98-image.jpeg?rk3s=25bff839&x-expires=2074154680&x-signature=qh7RFOBk3TQrf6ZuN1j0GArZZ74%3D',
        description: '香脆鸡肉汉堡搭配鸡块和冰爽可乐',
        rating: 4.5,
        reviewCount: 98
      },
      {
        id: 3,
        name: '经典汉堡套餐',
        category: 'burger',
        price: 39.9,
        image: 'https://p3-flow-imagex-sign.byteimg.com/ocean-cloud-tos/image_generation/a6f1d0e677b772b1f1629cf9aadf7830_1758794802569422656.jpeg~tplv-a9rns2rl98-image.jpeg?rk3s=25bff839&x-expires=2074154802&x-signature=vUhUZ1O2Cv4NTZkBFaSCfTZtbJA%3D',
        description: '经典牛肉汉堡搭配鸡块和冰爽可乐',
        rating: 4.6,
        reviewCount: 156
      },
      {
        id: 4,
        name: '水果披萨',
        category: 'pizza',
        price: 49.9,
        image: 'https://p3-flow-imagex-sign.byteimg.com/ocean-cloud-tos/image_generation/53a7c4e59efde0ad7ff9883be2f10657_1758803202290233593.jpeg~tplv-a9rns2rl98-image.jpeg?rk3s=25bff839&x-expires=2074163202&x-signature=%2FG50Y2Dq3H%2B8195P%2F%2BmEEIEsQ40%3D',
        description: '清晰水果披萨,9英寸',
        rating: 4.3,
        reviewCount: 87
      },
      {
        id: 5,
        name: '培根香肠披萨',
        category: 'pizza',
        price: 45.9,
        image: 'https://p11-doubao-search-sign.byteimg.com/labis/b0afb66ec58d35d81159f56fc6cc151c~tplv-be4g95zd3a-image.jpeg?rk3s=542c0f93&x-expires=1763697951&x-signature=H%2BaWOfcdgMXybkCizj%2BNzPzKTLs%3D',
        description: '经典培根香肠披萨,9英寸',
        rating: 4.7,
        reviewCount: 112
      },
      {
        id: 6,
        name: '芝士薯条',
        category: 'snack',
        price: 12.9,
        image: 'https://p3-flow-imagex-sign.byteimg.com/ocean-cloud-tos/image_generation/9f5999950ac28d63441407d6699714eb_1758794870315280472.jpeg~tplv-a9rns2rl98-image.jpeg?rk3s=25bff839&x-expires=2074154870&x-signature=QRerASjiZRKDYrks6ILtc5zIIWI%3D',
        description: '金黄薯条淋上香浓芝士酱',
        rating: 4.9,
        reviewCount: 203
      },
      {
        id: 7,
        name: '蔓越莓巧克力饼干',
        category: 'snack',
        price: 15.9,
        image: 'https://p3-flow-imagex-sign.byteimg.com/ocean-cloud-tos/image_generation/34669d4697b6ceecb7605fcbb7da485f_1758795675963695992.jpeg~tplv-a9rns2rl98-image.jpeg?rk3s=25bff839&x-expires=2074155676&x-signature=8iWtA7Yu1KwH7iD32Ffl1kerwbs%3D',
        description: '蔓越莓,巧克力,4块',
        rating: 4.4,
        reviewCount: 76
      },
      {
        id: 8,
        name: '果仁麦片酸奶杯',
        category: 'snack',
        price: 19.9,
        image: 'https://p3-flow-imagex-sign.byteimg.com/ocean-cloud-tos/image_generation/9724d2390751c85cfdc02b735141baea_1758794977383180496.png~tplv-a9rns2rl98-image.png?rk3s=25bff839&x-expires=2074154977&x-signature=FO0Xr5FzjYuFqfx%2FZ6UW7Ss%2BWS4%3D',
        description: '低卡,酸奶杯',
        rating: 4.2,
        reviewCount: 64
      },
      {
        id: 9,
        name: '青柠特饮',
        category: 'drink',
        price: 8.9,
        image: 'https://p3-flow-imagex-sign.byteimg.com/ocean-cloud-tos/image_generation/4ff83572ac21c8cd0ddebe2c907fe221_1758795755203756492.jpeg~tplv-a9rns2rl98-image.jpeg?rk3s=25bff839&x-expires=2074155755&x-signature=Q7PN4WmC%2FyhgzCWWmlxlx9iR5ig%3D',
        description: '清新青柠特饮',
        rating: 4.6,
        reviewCount: 92
      },
      {
        id: 10,
        name: '草莓奶昔',
        category: 'drink',
        price: 12.9,
        image: 'https://p3-flow-imagex-sign.byteimg.com/ocean-cloud-tos/image_generation/b4f4a3b55bde600d35cbc4cee133c5b4_1758799578963806180.jpeg~tplv-a9rns2rl98-image.jpeg?rk3s=25bff839&x-expires=2074159579&x-signature=bJx0e0z%2Bke16rEQAXuJmphXvKZk%3D',
        description: '香甜草莓奶昔',
        rating: 4.8,
        reviewCount: 145
      },
      {
        id: 11,
        name: '卡布奇诺',
        category: 'drink',
        price: 6.9,
        image: 'https://p3-flow-imagex-sign.byteimg.com/ocean-cloud-tos/image_generation/8303fa7205f6cfe548e6001b7e6097d3_1758795828734482307.jpeg~tplv-a9rns2rl98-image.jpeg?rk3s=25bff839&x-expires=2074155828&x-signature=z4FaS8Kg0zMTwmwGZsA3XmIGr40%3D',
        description: '可选全脂牛奶,脱脂牛奶',
        rating: 4.5,
        reviewCount: 89
      },
      {
        id: 12,
        name: '菠萝汁',
        category: 'drink',
        price: 5.9,
        image: 'https://p3-flow-imagex-sign.byteimg.com/ocean-cloud-tos/image_generation/cb082a2ff8d55dbe96cf9bf7739aedd6_1758795028196998734.png~tplv-a9rns2rl98-image.png?rk3s=25bff839&x-expires=2074155028&x-signature=7W2J1yI61By%2BXPZa3AzGtGxzQ5E%3D',
        description: '菠萝,百香果,梨',
        rating: 4.3,
        reviewCount: 78
      }
    ];

    // 购物车数据
    let cart = [];
    const deliveryThreshold = 50; // 免配送费阈值
    const deliveryFee = 8; // 配送费

    // 初始化菜单
    function initializeMenu() {
      const menuContainer = document.getElementById('menu-container');
      menuContainer.innerHTML = '';
      
      menuItems.forEach(item => {
        const menuItem = createMenuItem(item);
        menuContainer.appendChild(menuItem);
      });
    }

    // 创建菜单项
    function createMenuItem(item) {
      const menuItem = document.createElement('div');
      menuItem.className = `menu-item card-hover bg-white rounded-xl shadow overflow-hidden ${item.category}`;
      menuItem.setAttribute('data-category', item.category);
      menuItem.setAttribute('data-aos', 'fade-up');
      
      // 创建星级评分HTML
      function createRatingStars(rating) {
        const fullStars = Math.floor(rating);
        const halfStar = rating % 1 >= 0.5;
        const emptyStars = 5 - fullStars - (halfStar ? 1 : 0);
        
        let starsHTML = '';
        
        // 添加全星
        for (let i = 0; i < fullStars; i++) {
          starsHTML += '<i class="fa fa-star text-yellow-400"></i>';
        }
        
        // 添加半星
        if (halfStar) {
          starsHTML += '<i class="fa fa-star-half-o text-yellow-400"></i>';
        }
        
        // 添加空星
        for (let i = 0; i < emptyStars; i++) {
          starsHTML += '<i class="fa fa-star-o text-yellow-400"></i>';
        }
        
        return starsHTML;
      }
      
      const ratingHTML = createRatingStars(item.rating);
      
      menuItem.innerHTML = `
        <div class="relative">
          <img src="${item.image}" alt="${item.name}" class="w-full h-48 object-cover">
          <span class="absolute top-2 right-2 bg-primary text-white text-sm px-2 py-1 rounded-full">
            ¥${item.price.toFixed(2)}
          </span>
          <div class="absolute bottom-2 left-2 bg-black bg-opacity-70 text-white text-xs px-2 py-1 rounded-full flex items-center">
            <span class="mr-1">${item.rating.toFixed(1)}</span>
            <i class="fa fa-star text-yellow-400"></i>
          </div>
        </div>
        <div class="p-4">
          <div class="flex justify-between items-center mb-2">
            <h3 class="text-lg font-semibold">${item.name}</h3>
            <div class="flex items-center text-sm">
              <div class="flex mr-1">
                ${ratingHTML}
              </div>
              <span class="text-gray-500">(${item.reviewCount})</span>
            </div>
          </div>
          <p class="text-gray-600 text-sm mb-4">${item.description}</p>
          <button class="add-to-cart-btn btn-primary w-full" data-id="${item.id}">
            <i class="fa fa-plus mr-1"></i> 加入购物车
          </button>
        </div>
      `;
      
      return menuItem;
    }

    // 初始化事件监听
    function initializeEventListeners() {
      // 分类按钮点击事件
      document.querySelectorAll('.category-btn').forEach(btn => {
        btn.addEventListener('click', function() {
          // 移除所有按钮的active状态
          document.querySelectorAll('.category-btn').forEach(b => {
            b.classList.remove('active', 'bg-primary', 'text-white');
            b.classList.add('bg-gray-200');
          });
          
          // 添加当前按钮的active状态
          this.classList.add('active', 'bg-primary', 'text-white');
          this.classList.remove('bg-gray-200');
          
          // 筛选菜单
          const category = this.getAttribute('data-category');
          filterMenu(category);
        });
      });
      
      // 加入购物车按钮点击事件
      document.addEventListener('click', function(e) {
        if (e.target.classList.contains('add-to-cart-btn') || e.target.parentElement.classList.contains('add-to-cart-btn')) {
          const btn = e.target.classList.contains('add-to-cart-btn') ? e.target : e.target.parentElement;
          const itemId = parseInt(btn.getAttribute('data-id'));
          addToCart(itemId);
        }
      });
      
      // 购物车按钮点击事件
      document.getElementById('cart-button').addEventListener('click', function() {
        openCart();
      });
      
      // 关闭购物车按钮点击事件
      document.getElementById('close-cart-btn').addEventListener('click', function() {
        closeCart();
      });
      
      // 开始购物按钮点击事件
      document.getElementById('start-shopping-btn').addEventListener('click', function() {
        closeCart();
      });
      
      // 去结算按钮点击事件
      document.getElementById('checkout-btn').addEventListener('click', function() {
        closeCart();
        document.getElementById('checkout-section').classList.remove('hidden');
        // 滚动到结算区域
        document.getElementById('checkout-section').scrollIntoView({ behavior: 'smooth' });
      });
      
      // 确认订单按钮点击事件
      document.getElementById('confirm-order-btn').addEventListener('click', function() {
        // 简单表单验证
        const name = document.getElementById('recipient-name').value;
        const phone = document.getElementById('recipient-phone').value;
        const address = document.getElementById('recipient-address').value;
        const time = document.getElementById('delivery-time').value;
        
        if (!name || !phone || !address || !time) {
          alert('请填写完整的订单信息');
          return;
        }
        
        // 显示订单确认倒计时
        document.getElementById('countdown-section').classList.remove('hidden');
        startCountdown();
      });
      
      // 取消订单按钮点击事件
      document.getElementById('cancel-order-btn').addEventListener('click', function() {
        document.getElementById('countdown-section').classList.add('hidden');
        resetCountdown();
      });
      
      // 查看订单按钮点击事件
      document.getElementById('view-order-btn').addEventListener('click', function() {
        document.getElementById('countdown-section').classList.add('hidden');
        resetCountdown();
        alert('订单功能正在开发中,敬请期待!');
      });
      
      // 遮罩层点击事件
      document.getElementById('overlay').addEventListener('click', function() {
        closeCart();
      });
    }

    // 筛选菜单
    function filterMenu(category) {
      const menuItems = document.querySelectorAll('.menu-item');
      
      menuItems.forEach(item => {
        if (category === 'all' || item.getAttribute('data-category') === category) {
          item.style.display = 'block';
        } else {
          item.style.display = 'none';
        }
      });
    }

    // 添加到购物车
    function addToCart(itemId) {
      const item = menuItems.find(item => item.id === itemId);
      
      if (item) {
        // 检查购物车中是否已有该商品
        const existingItem = cart.find(cartItem => cartItem.id === itemId);
        
        if (existingItem) {
          existingItem.quantity += 1;
        } else {
          cart.push({
            id: item.id,
            name: item.name,
            price: item.price,
            image: item.image,
            quantity: 1
          });
        }
        
        // 更新购物车UI
        updateCartUI();
        
        // 显示添加成功动画
        showAddToCartAnimation(itemId);
      }
    }

    // 从购物车移除商品
    function removeFromCart(itemId) {
      const index = cart.findIndex(item => item.id === itemId);
      
      if (index !== -1) {
        cart.splice(index, 1);
        updateCartUI();
      }
    }

    // 更新商品数量
    function updateQuantity(itemId, newQuantity) {
      if (newQuantity < 1) return;
      
      const item = cart.find(item => item.id === itemId);
      
      if (item) {
        item.quantity = newQuantity;
        updateCartUI();
      }
    }

    // 更新购物车UI
    function updateCartUI() {
      const cartList = document.getElementById('cart-list');
      const emptyCart = document.getElementById('empty-cart');
      const cartSummary = document.getElementById('cart-summary');
      const cartCount = document.getElementById('cart-count');
      const subtotalElement = document.getElementById('subtotal');
      const deliveryFeeElement = document.getElementById('delivery-fee');
      const totalElement = document.getElementById('total');
      
      // 更新购物车数量
      const totalItems = cart.reduce((total, item) => total + item.quantity, 0);
      cartCount.textContent = totalItems;
      
      // 显示或隐藏空购物车提示
      if (cart.length === 0) {
        cartList.classList.add('hidden');
        emptyCart.classList.remove('hidden');
        cartSummary.classList.add('hidden');
        return;
      } else {
        cartList.classList.remove('hidden');
        emptyCart.classList.add('hidden');
        cartSummary.classList.remove('hidden');
      }
      
      // 更新购物车商品列表
      cartList.innerHTML = '';
      
      cart.forEach(item => {
        const cartItem = document.createElement('div');
        cartItem.className = 'flex items-center border-b pb-4';
        
        cartItem.innerHTML = `
          <img src="${item.image}" alt="${item.name}" class="w-16 h-16 object-cover rounded-lg mr-4">
          <div class="flex-1">
            <h4 class="font-medium">${item.name}</h4>
            <p class="text-primary">¥${item.price.toFixed(2)}</p>
            <div class="flex items-center mt-2">
              <button class="decrease-quantity px-2 py-1 border rounded-l" data-id="${item.id}">-</button>
              <span class="px-3 py-1 border-t border-b">${item.quantity}</span>
              <button class="increase-quantity px-2 py-1 border rounded-r" data-id="${item.id}">+</button>
            </div>
          </div>
          <button class="remove-item ml-2 text-gray-400 hover:text-red-500" data-id="${item.id}">
            <i class="fa fa-trash"></i>
          </button>
        `;
        
        cartList.appendChild(cartItem);
      });
      
      // 添加数量调整按钮事件监听
      document.querySelectorAll('.decrease-quantity').forEach(btn => {
        btn.addEventListener('click', function() {
          const itemId = parseInt(this.getAttribute('data-id'));
          const item = cart.find(item => item.id === itemId);
          
          if (item && item.quantity > 1) {
            updateQuantity(itemId, item.quantity - 1);
          } else if (item && item.quantity === 1) {
            removeFromCart(itemId);
          }
        });
      });
      
      document.querySelectorAll('.increase-quantity').forEach(btn => {
        btn.addEventListener('click', function() {
          const itemId = parseInt(this.getAttribute('data-id'));
          const item = cart.find(item => item.id === itemId);
          
          if (item) {
            updateQuantity(itemId, item.quantity + 1);
          }
        });
      });
      
      document.querySelectorAll('.remove-item').forEach(btn => {
        btn.addEventListener('click', function() {
          const itemId = parseInt(this.getAttribute('data-id'));
          removeFromCart(itemId);
        });
      });
      
      // 计算金额
      const subtotal = cart.reduce((total, item) => total + (item.price * item.quantity), 0);
      const fee = subtotal >= deliveryThreshold ? 0 : deliveryFee;
      const total = subtotal + fee;
      
      // 更新金额显示
      subtotalElement.textContent = `¥${subtotal.toFixed(2)}`;
      deliveryFeeElement.textContent = `¥${fee.toFixed(2)}`;
      totalElement.textContent = `¥${total.toFixed(2)}`;
    }

    // 显示添加到购物车动画
    function showAddToCartAnimation(itemId) {
      const btn = document.querySelector(`.add-to-cart-btn[data-id="${itemId}"]`);
      
      if (btn) {
        btn.innerHTML = '<i class="fa fa-check mr-1"></i> 已添加';
        btn.classList.add('bg-green-500');
        
        setTimeout(() => {
          btn.innerHTML = '<i class="fa fa-plus mr-1"></i> 加入购物车';
          btn.classList.remove('bg-green-500');
        }, 1500);
      }
    }

    // 打开购物车
    function openCart() {
      document.getElementById('cart-drawer').classList.add('open');
      document.getElementById('overlay').classList.remove('hidden');
      document.body.style.overflow = 'hidden';
    }

    // 关闭购物车
    function closeCart() {
      document.getElementById('cart-drawer').classList.remove('open');
      document.getElementById('overlay').classList.add('hidden');
      document.body.style.overflow = '';
    }

    // 订单确认倒计时
    let countdownInterval;
    let countdownSeconds = 900; // 15分钟

    // 开始倒计时
    function startCountdown() {
      const timerElement = document.getElementById('countdown-timer');
      const progressElement = document.getElementById('countdown-progress');
      const initialSeconds = countdownSeconds;
      
      updateCountdownDisplay();
      
      countdownInterval = setInterval(() => {
        countdownSeconds--;
        
        if (countdownSeconds <= 0) {
          clearInterval(countdownInterval);
          alert('订单已自动确认!');
          document.getElementById('countdown-section').classList.add('hidden');
          resetCountdown();
          return;
        }
        
        updateCountdownDisplay();
        
        // 更新进度条
        const progress = (countdownSeconds / initialSeconds) * 100;
        progressElement.style.width = `${progress}%`;
      }, 1000);
      
      function updateCountdownDisplay() {
        const minutes = Math.floor(countdownSeconds / 60);
        const seconds = countdownSeconds % 60;
        timerElement.textContent = `${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}`;
      }
    }

    // 重置倒计时
    function resetCountdown() {
      clearInterval(countdownInterval);
      countdownSeconds = 900; // 重置为15分钟
      document.getElementById('countdown-progress').style.width = '100%';
    }
  </script>
  
  <!-- 页脚 -->
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          <h3 class="text-lg font-semibold mb-4">关于我们</h3>
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</body></html>```