diff --git a/lottery.html b/lottery.html
new file mode 100644
index 0000000..324c298
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+++ b/lottery.html
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+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>抽奖页面</title>
+    <style>
+        body {
+            font-family: 'Arial', sans-serif;
+            height: 100vh;
+            margin: 0;
+            display: flex;
+            justify-content: center;
+            align-items: center;
+            background: linear-gradient(135deg, #6e45e2, #88d3ce);
+            color: white;
+            transition: background-color 0.5s ease;
+        }
+        .container {
+            text-align: center;
+            background-color: rgba(255, 255, 255, 0.1);
+            padding: 30px;
+            border-radius: 15px;
+            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
+            opacity: 1;
+            transition: opacity 0.5s ease;
+        }
+        #pointsDisplay {
+            font-size: 1.5em;
+            margin-bottom: 20px;
+        }
+        button {
+            padding: 12px 30px;
+            font-size: 1.1em;
+            border: none;
+            border-radius: 50px;
+            background-color: #ff5722;
+            color: white;
+            cursor: pointer;
+            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
+            transition: background-color 0.3s ease, box-shadow 0.3s ease;
+            margin: 10px;
+        }
+        button:hover {
+            background-color: #ff3d00;
+            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
+        }
+        #loading {
+            display: none;
+            font-size: 1.5em;
+            margin-top: 20px;
+        }
+    </style>
+</head>
+<body>
+
+    <div class="container">
+        <div id="pointsDisplay">当前积分: </div>
+        <button id="startLotteryButton">开始抽奖</button>
+        <button class="back-button" id="backButton">返回前一页面</button>
+        <div id="result"></div>
+        <div id="loading">正在加载，请稍候...</div>
+    </div>
+
+    <script>
+        const urlParams = new URLSearchParams(window.location.search);
+        let name = urlParams.get('name');
+
+        // 如果 URL 中没有 name 参数，尝试从 localStorage 获取
+        if (!name) {
+            name = localStorage.getItem('currentUserName');
+        }
+
+        const pointsDisplay = document.querySelector('#pointsDisplay');
+        const startLotteryButton = document.querySelector('#startLotteryButton');
+        const resultDisplay = document.querySelector('#result');
+        const backButton = document.getElementById('backButton');
+        const loadingIndicator = document.getElementById('loading');
+
+        // 睡眠函数，让页面跳转更自然
+        function sleep(d) {
+            return new Promise(resolve => setTimeout(resolve, d));
+        }
+
+        // 获取该用户的积分
+        let userPoints = parseInt(localStorage.getItem(name)) || 0;
+        pointsDisplay.textContent = `${name} 的当前积分: ${userPoints}`;
+
+        // 设置返回按钮的 URL
+        backButton.onclick = () => {
+            loadingIndicator.style.display = 'block'; // 显示加载提示
+            window.location.href = `choice.html?name=${encodeURIComponent(name)}`;
+        };
+
+        // 抽奖逻辑
+        startLotteryButton.addEventListener('click', async () => {
+            if (userPoints >= 20) {
+                userPoints -= 20;  // 每次抽奖消耗 20 分
+                localStorage.setItem(name, userPoints);  // 保存更新后的积分
+                pointsDisplay.textContent = `${name} 的当前积分: ${userPoints}`;
+
+                // 随机选择奖品
+                const prizes = ["跳过权", "再来一次", "什么也没有发生", "加30积分且跳过"];
+                const randomPrize = prizes[Math.floor(Math.random() * prizes.length)];
+                resultDisplay.textContent = `你赢得了: ${randomPrize}`;
+
+                // 等待 2 秒以展示结果
+                await sleep(2000);
+                loadingIndicator.style.display = 'block'; // 显示加载提示
+
+                if (randomPrize === '跳过权') {
+                    await sleep(1000);
+                    window.location.href = `select.html?name=${encodeURIComponent(name)}`;
+                } else if (randomPrize === '再来一次') {
+                    userPoints += 20;
+                    localStorage.setItem(name, userPoints);
+                } else if (randomPrize === '什么也没有发生') {
+                    await sleep(1000);
+                    window.location.href = `answer.html?name=${encodeURIComponent(name)}`;
+                } else if (randomPrize === '加30积分且跳过') {
+                    userPoints += 30;
+                    localStorage.setItem(name, userPoints);
+                    await sleep(1000);
+                    window.location.href = `select.html?name=${encodeURIComponent(name)}`;
+                }
+            } else {
+                resultDisplay.textContent = "积分不足，无法抽奖！";
+                loadingIndicator.style.display = 'block'; // 显示加载提示
+                await sleep(1000);
+                window.location.href = `answer.html?name=${encodeURIComponent(name)}`;
+            }
+        });
+    </script>
+</body>
+</html>
